CN101133234A - Lubrication apparatus - Google Patents

Abstract

An oil pan (130) comprises an oil pan cover (131) storing oil in an internal space and an oil pan separator (132) positioned in the internal space. The oil pan separator (132) is positioned so as to divide the internal space into a first chamber (30a), which has an oil strainer (41) at its bottom, and a second chamber (30b), which is adjacent to the first chamber (30a). The oil pan separator (132) includes a slope plate (132c) for capturing return oil that flows back from a cylinder block (20a) to an oil pan (130). Part of the captured return oil flows to the second chamber (30b) via a communication hole (132f) that is provided in the slope plate (132c). The remaining captured return oil flows into the first chamber (30a). This ensures that the oil level in the second chamber (30b) is higher than that in the first chamber (30a). Therefore, when a solenoid valve (133) opens at the end of a warm-up operation, the oil in the second chamber (30b) flows into the first chamber (30a).

Description

Lubricating fitting

Technical field

The present invention relates to a kind ofly can store the food tray that is used for machine oil that lubricated target mechanism (for example engine cylinder-body or automatic transmission) is lubricated.The invention still further relates to a kind of lubricating fitting that is equipped with described food tray.

Background technique

Usually, the lubricating fitting of the above-mentioned type is configured such that the machine oil that is stored in the food tray sucks and be fed to the lubricated target member (for example gear, camshaft, cylinder and piston) in the lubricated target mechanism by oil pump.Further, lubricating fitting is configured such that the described lubricated target member of oil lubricating, absorbs because of fricative heat and other and come from the heat of lubricated target member, flow back in (returning) food tray from lubricated target mechanism by gravity then.

So-called two-box type oil disc structure is well-known, and it is used to the oil disc structure (for example referring to following patent documents 1) that reduces preheat time during as the lubricating fitting of stating type in the use.

[patent documents 1] Japan Patent JP-A-222012/2003.

In patent documents 1 disclosed device, the food tray divider is arranged in the inner space of food tray.The food tray divider is the member that is used for the inner space of food tray is divided into two parts (first Room and second Room).First Room is towards the space as the engine cylinder-body opening that lubricates target mechanism.First Room is communicated with engine cylinder-body, thereby receives the machine oil that flows back to (returning) food tray from engine cylinder-body.The bottom of first Room is provided with oil pump and links to each other to constitute the oil strainer of machine oil suction port, is used for sucking the machine oil of first Room.Second Room is adjacent with first Room, thereby can be in the exchange that machine oil takes place in predetermined machine oil communication paths between first Room and second Room.

Said apparatus is configured such that: in warm-up operation, with after the preheating during compare, the exchange of the machine oil between first Room and second Room is restricted.This means the process of warm-up operation convenient.In other words, said apparatus is configured such that: when machine oil circulation time between the engine cylinder-body and first Room, restriction machine oil flows into first Room from second Room.This has reduced in the warm-up operation process circuit oil level in device.Therefore, the temperature of machine oil and lubricated target member promptly rises, thereby can shorten the preheating cycle of device.Further, after warm-up operation stopped, above-mentioned restriction was loosened or is removed.The machine oil that is stored in second Room flows into first Room then, thereby the machine oil in first Room and second Room circulates between engine cylinder-body and food tray.

Summary of the invention

When patent documents 1 disclosed device includes the engine oil flow path when allowing machine oil and flow to first Room from second Room by the machine oil communication paths and being sucked by oil strainer, the engine oil flow resistance in the engine oil flow path is R _2-1Simultaneously, when described device included the engine oil flow path and sucks by oil strainer to allow to be stored in machine oil in first Room, the engine oil flow resistance in the engine oil flow path was R _1-1In this case, R _2-1Greater than R _1-1Therefore, identical with situation between warming up period, the machine oil in first Room mainly sucks and is fed to lubricated target mechanism by oil strainer, even also is like this after preheating cycle stops.Therefore, be stored in the described device second indoor machine oil and can not be advantageously used in oil circulation between engine cylinder-body and the food tray.Thereby the machine oil (particularly being stored in the machine oil in first Room constantly) that is stored in the food tray is easy to deterioration.

Make the present invention to solve the above problems.An object of the present invention is to provide a kind of have the two-box type oil disc structure with shorten preheating cycle and between food tray and lubricated target mechanism as far as possible equably circulation be stored in the lubricating fitting of the machine oil in the food tray.

(1) will describe now according to structure of the present invention.According to lubricating fitting of the present invention comprise food tray, the machine oil that is used for being stored in food tray is fed to the oil pump of lubricated target mechanism and is arranged in the aforementioned inner space oil strainer with the machine oil inhalation port that is configured for oil pump.Comprise according to food tray of the present invention and the machine oil that is used for lubricated described lubricated target mechanism can be stored in the food tray cover of inner space and be arranged on food tray divider in the described inner space.

The food tray divider is set to be separated at its place, bottom with the inner space of the food tray cover that can store machine oil and to have first Room of oil strainer and second Room adjacent with first Room.The food tray divider is provided with permission and carries out the machine oil communication paths that machine oil exchanges between first Room and second Room.The machine oil communication paths is configured such that the runnability (for example process of warm-up operation) that the machine oil between first Room and second Room exchanges according to lubricated target mechanism changes.More specifically, it is limited (the machine oil communication paths is closed) that machine oil in the machine oil communication paths in the warm-up operation process between first Room and second Room exchanges, and loosens or removes (the machine oil communication paths is opened) and stop this restriction in back at warm-up operation.

(1-1) the invention is characterized in the following fact: Gou Zao lubricating fitting and food tray comprise that first way to cycle oil and second way to cycle oil are to realize above-mentioned purpose as mentioned above.First way to cycle oil is configured such that the oil return of flowing back to food tray from lubricated target mechanism introduces first Room.Second way to cycle oil is configured to second Room is introduced in oil return.

In above-mentioned structure, oil pump sucks machine oil via oil strainer from first Room.Machine oil is fed to lubricated target mechanism by oil pump then.The not only lubricated described lubricated target of the machine oil of being supplied mechanism is also from the heat absorption of lubricated target mechanism (for example, friction cause heat).Next, machine oil returns food tray.Introduce first Room from the oil return that food tray is flowed back in lubricated target mechanism via first way to cycle oil.This has quickened oily temperature rise and warm-up operation in first Room.

Oil return also is incorporated into second Room via second way to cycle oil.Therefore, oil return also can be assigned to second Room in the warm-up operation process.Thereby oil return can also be stored in second Room.When the machine oil communication paths is opened when warm-up operation stops, in the warm-up operation process, be stored in the second indoor machine oil (the second indoor oil level raises) and can quicken to flow to from second Room machine oil inflow of first Room via the machine oil communication paths.

Preferably, first and second way to cycle oil so form: it guarantees that (when first Room and second Room all have when being used to store the free space of oil return) flows into the recirculating oil quantity of first Room greater than the recirculating oil quantity that flows into second Room via second way to cycle oil via first way to cycle oil.This makes and flows into first Room from the oil return of lubricated target mechanism draw heat, thereby suitably quickens the process of warm-up operation.

(1-2) can as described belowly construct at the lubricating fitting and the food tray of structure described in (1-1) as mentioned.The food tray divider is provided with towards lubricated target mechanism opening to constitute first recess of first Room.Second Room is arranged on the outside of first Room, because its space of being sealed by the outer surface of first recess in food tray cover and the food tray divider forms.Described first way to cycle oil is arranged so that the lubricated target mechanism and first recess communicate with each other.

In above-mentioned structure, the oil return of flowing back to food tray from lubricated target mechanism is introduced first Room that the inner space by first recess forms by first way to cycle oil, and being communicated with between first recess that provides in lubricating target mechanism and being formed on the food tray divider is provided first way to cycle oil.

In above-mentioned structure, when first recess was formed in the food tray divider, first Room can form by using simple structure.Further, place second Room of first outdoor to form thermal-protective coating between first Room and the outside air.Therefore, can in the process of warm-up operation, quicken oily temperature rise in first Room.

Preferably, the food tray divider is formed by tabular component.Also preferably, when observing, roughly be formed on the centre (that is, the food tray divider is bathtub shape) of food tray divider towards first recess of lubricated target mechanism opening from the top.This has simplified the structure of food tray divider, thereby has reduced the cost of making lubricating fitting and food tray.

(1-3) as mentioned at (1-1) or (1-2) lubricating fitting and the food tray of structure can further comprise the oil return guide portion.The oil return guide portion comprise towards and be communicated with lubricated target mechanism and towards second recess of lubricated target mechanism opening.The bottom of oil return guide portion is provided with first intercommunicating pore that is communicated with first Room and second intercommunicating pore that is communicated with second Room.First way to cycle oil is formed by first intercommunicating pore, and second way to cycle oil is formed by second intercommunicating pore.

In above-mentioned structure, the oil return of flowing back to food tray from lubricated target mechanism temporarily receives by formed second recess of oil return guide portion.The machine oil that is received is introduced first and second Room via first and second intercommunicating pores then.

Preferably, first and second intercommunicating pores so form: it guarantees that (when first Room and second Room all have when being used to store the free space of oil return) flows into the recirculating oil quantity of first Room greater than the recirculating oil quantity that flows into second Room via the second oil return intercommunicating pore via first intercommunicating pore.

Further, preferably, the oil return guide portion is by the member manufacturing that is bathtub shape that forms by tabular component, and first intercommunicating pore is formed in the spacing body, and described spacing body is arranged to first Room and second recess towards lubricated target mechanism opening are separated.This has guaranteed to be arranged in zone around first intercommunicating pore of spacing body towards first Room and can play the effect of baffle plate.Therefore, the oil return guide portion can be integrally formed with baffle plate.Baffle plate is arranged in the food tray to stop the member of the machine oil fluctuation in the food tray.

(1-4) about as mentioned described in (1-3) structure lubricating fitting and food tray, the oil return guide portion can be integrally formed with the food tray divider.Then, the structure of lubricating fitting and food tray is greatly simplified.

(1-5) about the lubricating fitting and the food tray of structure at (1-3) or (1-4) as mentioned, the machine oil communication paths can be arranged to be lower than the oil return guide portion.

In above-mentioned structure, oil return is flowed back to second Room via the oil return guide portion of being arranged to be higher than the machine oil communication paths.Then, oil return can be stored in second Room.Further, after warm-up operation stopped, the machine oil that is stored in second Room flowed into first Room via the machine oil communication paths, and the machine oil communication paths is arranged to be lower than the height that place, second Room is flowed back in oil return.

In above-mentioned structure, after warm-up operation stops, can be quickened from the engine oil flow (oil return) that the oil return guide portion flows back to first Room via second way to cycle oil and second Room.Therefore, after warm-up operation stopped, machine oil can circulation fully in food tray.

For example, above-mentioned structure can be provided with the machine oil communication paths by the bottom in first Room and realizes.The bottom of first Room can refer to a near position the oil strainer.Alternatively, the bottom of first Room can refer to be lower than a position that is marked at " L (low) oil level " on the shaft-like oil level indicator, and described shaft-like oil level indicator allows to check the first indoor oil level by vision.

(1-6) about the lubricating fitting and the food tray of structure at (1-1) or (1-2) as mentioned, second way to cycle oil can form with the oil return through-hole that the top of second Room is communicated with by being arranged in the food tray divider so that first Room.

In other words, lubricating fitting and food tray are constructed as described below.Described in (1-1), lubricating fitting comprises food tray, oil pump and oil strainer as mentioned.Described in (1-1), food tray comprises food tray cover and food tray divider as mentioned.About lubricating fitting and food tray, the food tray divider provides the isolation between top, first Room and the top, second Room.Further, oil return through-hole is formed in the spacing body between top, first Room and top, second Room, and described spacing body is arranged in the food tray divider.

In above-mentioned structure, the oil return of flowing back to food tray from lubricated target mechanism at first flows into the top of first Room, then via being formed on the top that oil return through-hole the food tray divider flows into second Room.In other words, the top of second Room is flowed back in oil return via the top of first Room.

In above-mentioned structure, oil return can be flowed back to the top of first Room and the top of second Room in the warm-up operation process.This has quickened the rising of oil temperature in first Room in the warm-up operation process.Further, in the warm-up operation process, the oil level in second Room can raise to form an effective oil level poor (pressure reduction) between first Room and second Room.Because this pressure reduction, when warm-up operation finished, the machine oil in second Room flowed into first Room via the machine oil communication paths.Therefore, after warm-up operation stopped, machine oil can circulation fully in food tray.

(1-7) about as mentioned at the lubricating fitting and the food tray of structure described in (1-6), oil return through-hole can be formed on the corresponding position, summit with second Room of working when lubricated target mechanism moves.

When predetermined machine (for example vehicle) operation of the lubricating fitting of constructing as mentioned above was installed, oil return through-hole was arranged on the place, summit of the second Room vertical direction.Oil return through-hole is not only as second way to cycle oil, also as the vent hole of for example air upwards being discharged second Room when changing oil.

(1-8) about the lubricating fitting and the food tray of structure at (1-6) or (1-7) as mentioned, oil return through-hole can form and allow oil level indicator to insert.As everyone knows, oil level indicator comprises oil level indicator main body (bar portion) that is formed by rod component and the measurement section that is arranged on oil level indicator body end place.Measurement section is configured to allow check the first indoor oil level by vision.

When the lubricating fitting of structure moves as mentioned above, keep oil level indicator (measurement section) to insert in the oil return through-hole.When oil level indicator inserted in the oil return through-hole, the gap that oil return is passed between oil return through-hole and the oil level indicator flow back into second Room.

When needs were confirmed oil level in first Room, after lubricating fitting was out of service, oil level indicator was removed from oil return through-hole.Then, oil level indicator takes out from lubricating fitting.

Further, when needs were changed oil, after lubricating fitting was out of service, oil level indicator was removed from oil return through-hole, took out from lubricating fitting then.Then, the pipe that is connected to the machine oil oil changer of the machine oil that is used for changing food tray inserts oil return through-hole.

(1-9) as mentioned at (1-1) or (1-2) lubricating fitting and the food tray of structure can further comprise the oil return reservoir.The bottom of oil return reservoir can be provided with the intercommunicating pore that constitutes second way to cycle oil and be communicated with second Room.The oil return reservoir comprise towards and be communicated with lubricated target mechanism and towards second recess of lubricated target mechanism opening.Further, second recess can store oil return.

In above-mentioned structure, the oil return of flowing back to food tray from lubricated target mechanism temporarily flows into oil return reservoir (second recess).Subsequently, the oil return that is stored in the oil return reservoir flows into second Room via the intercommunicating pore that constitutes second way to cycle oil.

(1-10) can further comprise lateral partitions at the lubricating fitting and the food tray of constructing described in (1-9) as mentioned, it constitutes the sidewall of oil return reservoir.

In above-mentioned structure, the sidewall of oil return reservoir is made of lateral partitions.Therefore, oil return reservoir can form by using simple device construction.

More specifically, be used for above can comprising lateral partitions and upper clapboard in the oil return reservoir of lubricating fitting described in (1-9) and food tray.Upper clapboard is arranged to provide the isolation between the top of the oil return reservoir and second Room.Upper clapboard is provided with intercommunicating pore.Lateral partitions is arranged on the top of upper clapboard to be bearing on the upper clapboard.

In above-mentioned structure, the temporary transient recess of being sealed by upper clapboard and lateral partitions (second recess) that flows into of oil return from food tray is flowed back in lubricated target mechanism promptly, temporarily flows into the oil return reservoir.Subsequently, the oil return that is stored in the recess (oil return reservoir) flows into second Room via the intercommunicating pore that constitutes second way to cycle oil.

Be stored in recirculating oil quantity in the oil return reservoir and depend on the size (especially height) of lateral partitions.Therefore, the size of lateral partitions (being the oil return storage volume) can suitably be set, and makes machine oil all suitably circulate in lubricated target mechanism, lubricating fitting and food tray under each operating mode of lubricated target mechanism and lubricating fitting.

For example, for convenience's sake, the height of lateral partitions can be increased to certain degree.More specifically, this is applied to following situation: the structure that is adopted just allows intercommunicating pore that connection is provided when returning-oil temperature is elevated to predetermined extent.For example, this structure can be applied in the following situation: wherein intercommunicating pore has a little diameter (for example about 1 to 5 millimeter), and it is not easy to allow the full-bodied machine oil of low temperature to pass; Or intercommunicating pore is provided with the valve system according to opening/closings such as returning-oil temperatures.

In said circumstances, before oil return reaches predetermined high temperature (in the warm-up operation process), a large amount of relatively oil returns is stored in the oil return reservoir.When returning-oil temperature reached predetermined high temperature, oil return flowed into the top of second Room via intercommunicating pore.This has guaranteed machine oil circulation more strong between first Room and second Room.Therefore can suitably lubricate and cooling and lubricating target mechanism.

Simultaneously, preferably, lateral partitions be provided with lowlyer (not too high) to prevent the oil level deficiency in (particularly when motor starts) first Room when the cold start-up under low-down temperature.

(1-11) about the lubricating fitting and the food tray of structure at (1-9) or (1-10) as mentioned, the oil return reservoir can be integrally formed with the food tray divider.This can reduce the quantity of lubricating fitting and the needed parts of food tray.Therefore, can reduce manufacturing lubricating fitting and the needed manpower of food tray.

(1-12) about as mentioned described in (1-9) to (1-10) structure lubricating fitting and food tray, the machine oil communication paths can be arranged to be lower than the oil return reservoir.

In above-mentioned structure, oil return temporarily is stored in to be arranged to be higher than in the oil return reservoir of machine oil communication paths, returns second Room via second way to cycle oil then.This has guaranteed that oil return can be stored in second Room.After warm-up operation stopped, the machine oil that is stored in second Room flowed into first Room via the machine oil communication paths of being arranged to be lower than the oil return reservoir.When for example the bottom of first Room was provided with the machine oil communication paths, above-mentioned structure can easily be realized.

In above-mentioned structure, can stop post acceleration flow back into first Room via second way to cycle oil and second Room from the oil return reservoir the flowing of oil return at warm-up operation.Therefore, after warm-up operation stopped, machine oil can circulation fully in food tray.

(1-13) about as mentioned at the lubricating fitting and the food tray of structure described in (1-9) to (1-12), intercommunicating pore can be formed on the corresponding position, summit with second Room of working when lubricated target mechanism moves.

When the predetermined machine (for example vehicle) of the lubricating fitting that above-mentioned structure is installed moved, oil return through-hole was arranged on the place, summit of the second Room vertical direction.Oil return through-hole is not only as second way to cycle oil, also as above-mentioned vent hole.

(1-14) about as mentioned at the lubricating fitting and the food tray of structure described in (1-9) to (1-13), intercommunicating pore can form the insertion of accepting above-mentioned oil level indicator.

In above-mentioned structure, when lubricating fitting moved, oil level indicator inserted in the intercommunicating pore.Under oil level indicator inserted situation in the intercommunicating pore, when gap between intercommunicating pore and the oil level indicator was passed in oil return, oil return flow back into second Room.

Change oil when maybe needing to confirm oil level in first Room when needs, when lubricating fitting was out of service, oil level indicator was removed from intercommunicating pore.

(1-15) about as mentioned described in (1-1) to (1-14) structure lubricating fitting and food tray, the machine oil communication paths can be provided with first valve that can come opening/closing according to the oily temperature in first Room.

In above-mentioned structure, first valve can come opening/closing according to the runnability of lubricated target mechanism.This has guaranteed and can exchange according to the machine oil that the runnability of lubricated target mechanism is suitably controlled between first Room and second Room.

(1-16) about as mentioned described in (1-1) to (1-15) structure lubricating fitting and food tray, second way to cycle oil can be provided with second valve that can come opening/closing according to the temperature of oil return.

In above-mentioned structure, second valve can come opening/closing according to the runnability of lubricated target mechanism.This has guaranteed that can suitably control oil return according to the runnability of lubricated target mechanism flow back into second Room via second way to cycle oil.

(1-17) as mentioned as (1-16) described in the structure lubricating fitting and food tray can further comprise the opening linkage portion, it is used to guarantee that the opening of first valve and the opening of second valve link each other.

In above-mentioned structure, first valve can come opening/closing according to the runnability of lubricated target mechanism.Further, the opening linkage portion can make the opening of second valve and the opening interlock of first valve.This has guaranteed and can flow back into second Room via second way to cycle oil according to machine oil exchange and the oil return that the runnability of lubricated target mechanism is suitably controlled between first Room and second Room.

(1-18) about as mentioned described in (1-17) structure lubricating fitting and food tray, the opening linkage portion can be formed by line components, line components is installed as the bridge member between first valve and second valve.

In above-mentioned structure, the opening of first valve and second valve can by line components each other mechanically, suitably the interlock.

(1-19) about as mentioned at the lubricating fitting and the food tray of structure described in (1-1) to (1-18), the machine oil communication paths can be arranged to be lower than the first indoor oil level that works when lubricating target mechanism runnability.

In above-mentioned structure, the hydraulic pressure in the machine oil communication paths can raise.Therefore, the pressure reduction maximizing of the machine oil communication paths between first Room and second Room.Therefore, after warm-up operation stopped, the machine oil in the machine oil communication paths between first Room and second Room can exchange strong, to guarantee machine oil circulation fully in food tray.

(2) according to lubricating fitting of the present invention comprise food tray, the machine oil that is used for being stored in food tray is fed to the oil pump of lubricated target mechanism and is arranged in the aforementioned inner space oil strainer with the machine oil inhalation port that constitutes oil pump.Comprise according to food tray of the present invention and the machine oil that is used for lubricated described lubricated target mechanism can be stored in the food tray cover of inner space and be arranged on food tray divider in the described inner space.

The food tray divider is set to be separated in its bottom with the inner space of the food tray cover that can store machine oil and to have first Room of oil strainer and second Room adjacent with first Room.The food tray divider is provided with permission and carries out the machine oil communication paths that machine oil exchanges between first Room and second Room.The machine oil communication paths is configured such that the runnability (for example process of warm-up operation) that the machine oil between first Room and second Room exchanges according to lubricated target mechanism changes.More specifically, it is limited (the machine oil communication paths is closed) that machine oil in the machine oil communication paths in the warm-up operation process between first Room and second Room exchanges, and loosens or removes (the machine oil communication paths is opened) and stop this restriction in back at warm-up operation.

(2-1) the invention is characterized in the following fact: lubricating fitting and the food tray at structure described in (2) comprises that way to cycle oil is to realize above-mentioned purpose as mentioned.Way to cycle oil is configured such that and the oil return of flowing back to food tray from lubricated target mechanism can be incorporated into first Room

In above-mentioned structure, oil pump sucks machine oil via oil strainer from first Room.Machine oil is fed to lubricated target mechanism by oil pump then.The not only lubricated described lubricated target of the machine oil of being supplied mechanism is also from the heat absorption of lubricated target mechanism.Machine oil returns food tray then.

Introduce second Room via way to cycle oil then from the part that lubricated target mechanism is flowed back to the oil return of food tray.Therefore, in the warm-up operation process, oil return can be stored in second Room.Remaining part in the oil return flow back into first Room.This has quickened oily temperature rise and warm-up operation in first Room.

When the machine oil communication paths is opened when warm-up operation stops, in the warm-up operation process, be stored in the second indoor machine oil (the second indoor oil level raises) and can quicken to flow to from second Room engine oil flow of first Room via the machine oil communication paths.

Preferably, way to cycle oil so forms: it guarantees that (when first Room and second Room all have when being used to store the free space of oil return) flows into the recirculating oil quantity of first Room greater than the recirculating oil quantity that flows into second Room via way to cycle oil.This makes and flows into first Room from the oil return of lubricated target mechanism draw heat, thereby suitably quickens the process of warm-up operation.

(2-2) about as mentioned at the lubricating fitting and the food tray of structure described in (2-1), way to cycle oil can be formed by oil return through-hole, oil return through-hole was formed in the food tray divider with being communicated with between the top of top that first Room is provided and second Room.

In other words, lubricating fitting and food tray structure as described below.Described in (2), lubricating fitting comprises food tray, oil pump and oil strainer as mentioned.Described in (2), food tray comprises food tray cover and food tray divider as mentioned.In lubricating fitting and food tray, the food tray divider provides the isolation between top, first Room and the top, second Room.About the food tray divider, oil return through-hole is formed in the spacing body between top, first Room and top, second Room.

In above-mentioned structure, oil return at first flows into the top of first Room, flows into the top of second Room via oil return through-hole then.In other words, the top of second Room is flowed back in oil return via the top of first Room.

When adopting above-mentioned structure, oil return can be flowed back to the top of first Room and the top of second Room in the warm-up operation process.This has quickened the rising of oil temperature in first Room.Further, in the warm-up operation process, the oil level in second Room can raise.Because the oil level pressure reduction between caused first Room and second Room that raises in second Room, when warm-up operation finished, the machine oil in second Room flowed into first Room via the machine oil communication paths.Therefore, after warm-up operation stopped, machine oil can circulation fully in food tray.

(2-3) about as mentioned at the lubricating fitting and the food tray of structure described in (2-2), oil return through-hole can be formed on the corresponding position, summit with second Room of working when lubricated target mechanism moves.

When the predetermined machine run of the lubricating fitting that above-mentioned structure is installed, oil return through-hole is arranged on the place, summit of the second Room vertical direction.Oil return through-hole is not only as way to cycle oil, also as above-mentioned vent hole.

(2-4) about the lubricating fitting and the food tray of structure at (2-2) or (2-3) as mentioned, oil return through-hole can form the insertion of accepting above-mentioned oil level indicator.

In above-mentioned structure, at the run duration of lubricating fitting, when oil level indicator inserted in the oil return through-hole, the gap between oil return through-hole and the oil level indicator was passed in oil return.This causes oil return to flow back into second Room.

When for example needing to change oil, when lubricating fitting was out of service, oil level indicator was removed from oil return through-hole.

(2-5) can further comprise the oil return reservoir at the lubricating fitting and the food tray of constructing described in (2-1) as mentioned.The bottom of oil return reservoir can be provided with the intercommunicating pore that is communicated with and constitutes way to cycle oil with second Room.The oil return reservoir comprises towards also being communicated with lubricated target mechanism and storing recess towards the oil return of lubricating target mechanism opening.Oil return stores recess can store oil return.

In above-mentioned structure, the oil return of flowing back to food tray from lubricated target mechanism temporarily flows into oil return reservoir (oil return storage recess).Subsequently, the oil return that is stored in the oil return reservoir flows into second Room via the intercommunicating pore that constitutes way to cycle oil.

(2-6) can further comprise lateral partitions at the lubricating fitting and the food tray of constructing described in (2-5) as mentioned, it constitutes the sidewall of oil return reservoir.

More specifically, be used for as mentioned can comprising lateral partitions and upper clapboard in the oil return reservoir of lubricating fitting described in (2-5) and food tray.Upper clapboard is arranged to provide the isolation between the top of the oil return reservoir and second Room.Upper clapboard is provided with intercommunicating pore.Lateral partitions is arranged on the top of upper clapboard to be bearing on the upper clapboard.

In above-mentioned structure, the temporary transient recess of being sealed by upper clapboard and lateral partitions (second recess) that flows into of oil return from food tray is flowed back in lubricated target mechanism promptly, temporarily flows into the oil return reservoir.Subsequently, the oil return that is stored in the recess (oil return reservoir) flows into second Room via the intercommunicating pore that constitutes second way to cycle oil.

As discussed previously, the size of lateral partitions (oil return storage volume) can suitably be set, and makes machine oil all suitably circulate in lubricated target mechanism, lubricating fitting and food tray under each operating mode of lubricated target mechanism and lubricating fitting.

(2-7) about the lubricating fitting and the food tray of structure at (2-5) or (2-6) as mentioned, the oil return reservoir can be integrally formed with the food tray divider.This makes it possible to reduce manufacturing lubricating fitting and the needed manpower of food tray.

(2-8) about as mentioned at (2-5), (2-6) or the lubricating fitting and the food tray of structure (2-7), the machine oil communication paths can be arranged to be lower than the oil return reservoir.

In above-mentioned structure, oil return temporarily is stored in to be arranged to be higher than in the oil return reservoir of machine oil communication paths, returns second Room via way to cycle oil then.Oil return can be stored in second Room then.After warm-up operation stopped, the machine oil that is stored in second Room flowed into first Room via the machine oil communication paths of being arranged to be lower than the oil return reservoir.By the bottom in first Room machine oil communication paths is set, above-mentioned structure can be realized easily.

Above-mentioned structure can stop the flowing of machine oil (oil return) that first Room is further quickened to flow back into via the way to cycle oil and second Room from the oil return reservoir in the back at warm-up operation.Therefore, after warm-up operation stopped, machine oil can circulation fully in food tray.

(2-9) about as mentioned at the lubricating fitting and the food tray of structure described in (2-5) to (2-8), intercommunicating pore can be formed on the corresponding position, summit with second Room of working when lubricated target mechanism moves.

When the predetermined machine run of the lubricating fitting that above-mentioned structure is installed, oil return through-hole is arranged on the place, summit of the second Room vertical direction.The oil return through-hole double as is a vent hole.

(2-10) about as mentioned at the lubricating fitting and the food tray of structure described in (2-5) to (2-9), intercommunicating pore can form the insertion of accepting above-mentioned oil level indicator.

In above-mentioned structure, when lubricating fitting moved, oil level indicator inserted in the intercommunicating pore.Under oil level indicator inserted situation in the intercommunicating pore, when gap between intercommunicating pore and the oil level indicator was passed in oil return, oil return flow back into second Room.

When for example needing to change oil, when lubricating fitting was out of service, oil level indicator was removed from intercommunicating pore.

(2-11) about as mentioned described in (2-1) to (1-10) structure lubricating fitting and food tray, the machine oil communication paths can be arranged to be lower than way to cycle oil.

In above-mentioned structure, oil return via be provided be higher than the machine oil communication paths way to cycle oil flow back to second Room.It is second indoor that oil return can be stored in then.After warm-up operation stopped, the machine oil communication paths of---oil return is flowed back to second Room by described way to cycle oil---flowed into first Room via being arranged to be lower than way to cycle oil to be stored in machine oil in second Room.

Above-mentioned structure can further quicken after warm-up operation stops to flow back to via the way to cycle oil and second Room machine oil (oil return) mobile of first Room.Therefore, after warm-up operation stopped, machine oil can circulation fully in food tray.

(2-12) about as mentioned at the lubricating fitting and the food tray of structure described in (2-1) to (2-11), the food tray divider can be provided with towards lubricated target mechanism opening and form recess with first Room that constitutes first Room.Second Room forms the outside that space that the outer surface of recess seals formed and be arranged on first Room by first Room in food tray cover and the food tray divider.

In above-mentioned structure, when the food tray divider was provided with first Room formation recess, first Room can be by using simple structure formation.Further, second Room that is arranged on first outdoor forms the thermal-protective coating between first Room and the outside air.Therefore, can in the process of warm-up operation, quicken oily temperature rise in first Room.

Preferably, the food tray divider is formed by tabular component.Also preferably, when observing, form the centre (that is, the food tray divider is bathtub shape) that recess roughly is formed on the food tray divider towards first Room of lubricated target mechanism opening from the top.This has simplified the structure of food tray divider, thereby has reduced the cost of making lubricating fitting and food tray.

(2-13) about as mentioned described in (2-1) to (2-12) structure lubricating fitting and food tray, the machine oil communication paths can be provided with first valve that can come opening/closing according to the oily temperature in first Room.

When having adopted above-mentioned structure, first valve can come opening/closing according to the runnability of lubricated target mechanism.This has guaranteed and can exchange according to the machine oil that the runnability of lubricated target mechanism is suitably controlled between first Room and second Room.

(2-14) about as mentioned described in (2-1) to (2-13) structure lubricating fitting and food tray, second way to cycle oil can be provided with second valve that can come opening/closing according to the temperature of oil return.

When having adopted above-mentioned structure, second valve can come opening/closing according to the runnability of lubricated target mechanism.This has guaranteed that can suitably control oil return according to the runnability of lubricated target mechanism flow back into second Room via way to cycle oil.

(2-15) can further comprise the opening linkage portion at the lubricating fitting and the food tray of constructing described in (1-14) as mentioned, it is used to guarantee that the opening of first valve and the opening of second valve link each other.

In above-mentioned structure, first valve can come opening/closing according to the runnability of lubricated target mechanism.Further, the opening linkage portion can make the opening of second valve and the opening interlock of first valve.This has guaranteed and can flow back into second Room via way to cycle oil according to machine oil exchange and the oil return that the runnability of lubricated target mechanism is suitably controlled between first Room and second Room.

(2-16) about as mentioned described in (1-15) structure lubricating fitting and food tray, the opening linkage portion can be formed by line components, line components is installed as the bridge member between first valve and second valve.

In above-mentioned structure, the opening of first valve and second valve can by line components each other mechanically, suitably the interlock.

As mentioned above, the present invention will introduce first Room and second Room via first and second way to cycle oil from the oil return that lubricated target mechanism is flowed back to.Therefore, oil return also is stored in second Room.After warm-up operation stopped, oil return was stored in second Room, makes that the machine oil in second Room can be pushed to first Room by the machine oil communication paths.Thus, the institute's organic oil in the food tray---comprises the machine oil in second Room---and can circulate between food tray and lubricated target mechanism.

Description of drawings

Fig. 1 is the schematic configuration that is equipped with according to the motor of the food tray of one embodiment of the present invention.

Fig. 2 is a sectional view, and it is schematically illustrated according to structure first embodiment of the invention, that be included in the food tray in the motor shown in Figure 1.

Fig. 3 according to second embodiment of the invention, be included in the schematic configuration of the food tray in the motor shown in Figure 1.

Fig. 4 is the enlarged cross-sectional view that thermostatic valve device shown in Figure 3 is shown.Fig. 4 (A) is illustrated in the thermostatic valve device of closing under the low temperature.Fig. 4 (B) illustrates the thermostatic valve device of at high temperature opening.

Fig. 5 is a viewgraph of cross-section, and it is schematically illustrated according to structure third embodiment of the invention, that be included in the food tray in the motor shown in Figure 1.

Fig. 6 is the sectional view along Fig. 5 middle section C-C.

Fig. 7 is a viewgraph of cross-section, and it is schematically illustrated according to structure four embodiment of the invention, that be included in the food tray in the motor shown in Figure 1.

Fig. 8 is a viewgraph of cross-section, and it is schematically illustrated according to structure fifth embodiment of the invention, that be included in the food tray in the motor shown in Figure 1.

Fig. 9 is a viewgraph of cross-section, and it is schematically illustrated according to structure sixth embodiment of the invention, that be included in the food tray in the motor shown in Figure 1.

Figure 10 is a viewgraph of cross-section, and it is schematically illustrated according to structure seventh embodiment of the invention, that be included in the food tray in the motor shown in Figure 1.

Figure 11 is the viewgraph of cross-section that amplifies, and it illustrates oil return reflux valve device shown in Figure 10.

Embodiment

Referring now to accompanying drawing embodiments of the present invention (preferred forms that the applicant is thought when application is of the present invention) are described.

The general introduction of the engine construction of a mode of execution of＜foundation 〉

The structure of the motor 10 of the schematically illustrated mode of execution according to lubricating fitting of the present invention of Fig. 1.Described motor comprises: main body (engine cylinder-body) 20, and it is the lubricated target mechanism that comprises cylinder head and cylinder block; Food tray 30, it is connected to the lower end of engine cylinder-body 20; And lubrication system 40, its machine oil that is used for being stored in food tray 30 is fed to the inner member of motor 10.

Engine cylinder-body 20 is provided with lubricated target members such as a plurality of for example pistons 21, bent axle 22 and camshaft 23.The lower end of engine cylinder-body 20 is connected to food tray 30, and described food tray can store the machine oil of the inside that is used for lubricating engine cylinder body 20.

Comprise that the oil strainer 41 that is used to suck the inhalation port 41a that is stored in the machine oil in the food tray 30 is arranged in the food tray 30.Oil strainer 41 is connected with oil purifier flow passage 43 by the oil pump 42 that is arranged in the engine cylinder-body 20.

Oil pump 42 comprises known rotary pump.Its rotor 42a is coupled to bent axle 22, makes rotor 42a with bent axle 22 rotations.Oil purifier flow passage 43 is formed by metal tube.Its lower end is connected to oil strainer 41.The upper end of oil purifier flow passage 43 is connected to pump intake path 42b, and pump intake path 42b is the machine oil path that is formed on engine cylinder-body 20 lower ends.Oil pump 42 is connected to the oil filter 44 that is arranged on engine cylinder-body 20 outsides by oil delivery path 45.Oil filter 44 is connected to machine oil feed path 46, and described machine oil feed path 46 is set to the engine oil flow path towards lubricated target member.

The oil pan structure of＜foundation first mode of execution 〉

Fig. 2 is a viewgraph of cross-section, and it illustrates according to structure first embodiment of the invention, that be included in the food tray 130 in the motor 10 shown in Figure 1.

The structure of＜＜food tray cover〉〉

Food tray cover 131 is the members that are bathtub shape, and it constitutes the outer cover of food tray 130.It forms by pressing steel plate and is made of parts.

All acies at the base plate 131a of food tray cover 131 are provided with side plate 131b with closed bottom 131a.In side plate 131b, form an opening, make this opening open (thereby, increase along with the increase of height) by side plate 131b enclosed areas towards the engine cylinder-body 20 that is positioned at the top.

Part (right hand portion shown in Figure 2) side plate 131b near power train mechanism (not shown) is coupled to swash plate 131c.It is less that swash plate 131c and side plate 131b compare inclination.

Flange portion 131d is formed at all acies of food tray cover 131.Flange portion 131d is coupled to side plate 131b and swash plate 131c.Flange portion 131d will be installed on the cylinder block 20a that is positioned at engine cylinder-body 20 bottoms.More specifically, flange portion 131d connects or is anchored in other mode the lower end surface 20a1 of cylinder block 20a by bolt.

Gou Zao food tray cover 131 can be stored in machine oil in the space of being sealed by base plate 131a and side plate 131b as mentioned above.Its lowest position at the base plate 131a that is positioned at bottom, described space is provided with the oil extraction bolt hole 131e that forms through hole.(term " extreme lower position " refers to when the extreme lower position of the preset device that comprises motor 10 (for example motor vehicle) when placing on the level ground on gravitational direction).Oil extraction bolt hole 131e is threaded, makes oil extraction bolt 134 to be screwed in it.

The machine oil that is shaped so that of food tray cover 131 flows to oil extraction bolt hole 131e by gravity swimmingly via the surface of base plate 131a, side plate 131b and swash plate 131c.In other words, when when oil extraction bolt hole 131e removes oil extraction bolt 134, the machine oil that is stored in food tray cover 131 inner spaces can all flow out food tray 130 via oil extraction bolt hole 131e by gravity.

The structure of＜＜food tray divider〉〉

Food tray divider 132 be one can be at the tabular component of internal reservoir machine oil.It is to have the molding and forming synthetic resin of low heat conductivity and be made of parts.

All acies at the base plate 132a of food tray divider 132 are provided with side plate 132b with closed bottom 132a.In side plate 132b, form an opening, make this opening open towards the engine cylinder-body 20 that is positioned at the top.Part (right hand portion shown in Figure 2) side plate 132b near power train mechanism (not shown) is coupled to swash plate 132c.It is less that swash plate 132c and side plate 132b compare inclination.

Gou Zao food tray divider 132 can be stored in machine oil recess (first recess that is formed by base plate 132a, side plate 132b and swash plate 132c as mentioned above; Hereinafter be called " recess of food tray divider 132 " simply) the inner space in.The recess of food tray divider 132 is towards cylinder block 20a opening and be coupled to the inner space of cylinder block 20a lower end.In other words, the oil return of flowing back to from lubricated target member (piston 21 for example shown in Figure 1 and bent axle 22)---it is set in place in the engine cylinder-body 20 of top---can flow into the inner space (referring to arrow R and the R ' of Fig. 2) of the recess of food tray divider 132 via the inner space that is arranged in cylinder block 20a lower end.

Food tray divider 132 is shaped so that machine oil can flow to base plate 132a swimmingly by gravity on side plate 132b and swash plate 132c.In other words, oil return is at first received by swash plate 132c.The oil return that receives can flow downstream into the space (referring to the arrow R among Fig. 2) of being sealed by base plate 132a and side plate 132b then swimmingly via the surface of swash plate 132c.

The interior end in the space of being sealed by base plate 132a and side plate 132b, be provided with oil strainer 41.In other words, the space of sealing by base plate 132a and side plate 132b by food tray divider 132 (recess of above-mentioned food tray divider 132) forms the first Room 30a (first Room forms recess).The roughly extreme higher position of the first Room 30a is arranged on the place, connecting part between side plate 132b and the swash plate 132c.Term " extreme higher position " refers to when the extreme higher position of the preset device that comprises motor 10 (for example automobile) when placing on the level ground on gravitational direction.In other words, the roughly extreme higher position of the first Room 30a is the position corresponding to the first Room opening 30a1, the described first Room opening towards upper shed to form the opening end of the first Room 30a.The first Room opening 30a1 is a such opening: its upper end that is formed at the space of being sealed by the base plate 132a of food tray divider 132 and side plate 132b is to constitute the pith of the first Room 30a.Oil strainer 41 is arranged so that its inhalation port 41a places upper surface with base plate 132a to separate the place of a little distance (for example 10 millimeters etc.).

Food tray divider 132 is arranged on the food tray cover 131 (being provided with up in Fig. 2, promptly along the direction towards cylinder block 20a).The edge of food tray divider 132 is supported by the flange portion 131d of food tray cover 131.The outside of the swash plate 132c of food tray divider 132 (side that deviates from the first Room 30a) part is stacked on the swash plate 131c of food tray cover 131.The base plate 132a of food tray divider 132 is positioned at the intended distance place of food tray cover 131 base plate 131a top.

Food tray divider 132 is supported in the food tray cover 131, and the chamber 30a that wins is placed in the base plate 131a of food tray cover 131 and the space that side plate 131b is sealed.In other words, the second Room 30b that the space provided that is sealed by food tray cover 131 and food tray divider 132 is formed at the below of the first Room 30a and is positioned at its side (extreme higher position of the second Room 30b is the place, connecting part of side plate 131b and swash plate 131c).

The shape and size of food tray divider 132 (the particularly shape and size of base plate 132a and side plate 132b) be set at make win the chamber 30a and the second Room 30b cubic capacity about equally.

The swash plate 132c of food tray divider 132 is provided with the intercommunicating pore 132f that is communicated with the second Room 30b.Intercommunicating pore 132f is the through hole with circular open, and when observing from the top, its diameter is roughly 10 to 20 millimeters.Perspective direction (along the direction vertical with the paper of Fig. 2) at motor 10 (referring to Fig. 1) is provided with one or more such through holes.Being communicated with between the top that the first Room 30a is provided with the intercommunicating pore 132f of form the basis oil return through-hole of the present invention and the top of the second Room 30b, thus the oil return that allows the top by the first Room 30a to receive flows into the top of the second Room 30b.

The structure of the oily circulation flow passage in the＜＜food tray〉〉

In the food tray 130 of foundation present embodiment, swash plate 132c with above-mentioned intercommunicating pore 132f makes and enters the second Room 30b at a part of R1 in the oil return that the first Room 30a flows on the swash plate 132c via intercommunicating pore 132f, and rest parts R2 enters the first Room 30a.When the oil level in the second Room 30b rises and when arriving at intercommunicating pore 132f, the amount of oil return R1 is zero to make all oil returns all flow into the first Room 30a.

Intercommunicating pore 132f roughly is arranged to flush with " F (expiring) " oil level in first Room.When oil level indicator 50 is installed on cylinder block 20a, among the first Room 30a " F " oil level corresponding to " F " mark on the oil level indicator 50 (for " L (low) " oil level also is like this), the oil level that described oil level indicator 50 is measured among the first Room 30a.The height corresponding with " F " mark on the oil level indicator 50 is called " F " oil level simply when oil level indicator 50 is installed in the motor 10 (referring to Fig. 1) hereinafter.Similarly, hereinafter when oil level indicator 50 is installed in the motor 10 (referring to Fig. 1) height corresponding with " L " mark on the oil level indicator 50 be called " L " oil level simply.

For example, " L " oil level can be made as at the minimum oil level when oil strainer 41 sucks suitably of machine oil under the abominable operating conditions.More specifically, the minimum oil level of pretrigger can be made as " L " oil level, makes that (for example about-30 ℃) can be from oil strainer 41 suction air when starting under low-down temperature when motor.

" F " oil level can be set as an amount of machine oil is added to the oil level that stores in above-mentioned " L " oil level place and the oil level that obtains.Set the feasible oil level that when the oil level among the first Room 30a is " F ", is stored among the first Room 30a for according to the food tray 130 of present embodiment and be roughly 2.8 liters, and the oil level that is stored among the first Room 30a when the oil level among the first Room 30a is " L " is roughly 1.6 liters.Height difference between " F " oil level and " L " oil level is roughly 10 to 50 millimeters.

Food tray 130 according to present embodiment is configured such that roughly 30% to 50% the opening that is positioned at cylinder block 20a lower end is directly faced the first Room 30a.Further, food tray 130 is configured such that the other parts of opening are in the face of swash plate 132c.In other words, the size and dimension of swash plate 132c is configured such that oil return R, and---it at first receives the swash plate 132c that can flow through then downwards by swash plate 132c, and---flow proportional of---it does not receive by swash plate 132c and just directly flows into the first Room 30a---roughly drops in 5: 5 to 7: 3 the scope with oil return R '.

The shape of intercommunicating pore 132f, size and quantity are set for and are made oil return R1---its swash plate 132c and flow into the second Room 30b of flowing through---amount and oil return R2---its flow through swash plate 132c and flow into the first Room 30a---amount about equally.In other words, swash plate 132c and intercommunicating pore 132f be configured such that total recirculating oil quantity of flowing to the first Room 30a (R '+R2) greater than the total recirculating oil quantity (R1) that flows to the second Room 30b ([R '+R2]: R1=7.5: 2.5 to 6.5: 3.5).

In the present embodiment, first way to cycle oil that oil return is directed into the first Room 30a by be positioned at cylinder block 20a lower end, directly the downstream part that does not have intercommunicating pore 132f (near the part of the first Room 30a) in the face of opening and the swash plate 132c of the first Room 30a forms.In other words, form by the first Room opening 30a1 that roughly constitutes first Room 30a upper end according to first way to cycle oil of the present invention.Intercommunicating pore 132f constitutes second way to cycle oil, and it directs into the second Room 30b with oil return.

The bottom of the side plate 132b of food tray divider 132 is provided with solenoid valve 133, and this solenoid valve 133 runs through side plate 132b ground to be installed.Solenoid valve 133 is opening/closing under the control of engine control circuit (not shown).More specifically, engine control circuit comes the opening of control electromagnetic valve 133 according to the process of motor 10 (referring to Fig. 1) warm-up operation, for example detects the process of warm-up operation based on the temperature of cooling water.

Normally open by (when tail-off) when not having excited target for solenoid valve 133.Food tray 130 is configured such that the machine oil among the first Room 30a can flow to the second Room 30b and be discharged to the outside via oil extraction bolt hole 131e from the second Room 30b by solenoid valve 133 when changing oil.

Solenoid valve 133 is arranged to be lower than the first Room opening 30a1---and oil return is the described first Room opening 30a1 of process when turning back to the first Room 30a.Similarly, solenoid valve 133 is arranged to be lower than intercommunicating pore 132f---and oil return is the described intercommunicating pore 132f of process when turning back to the second Room 30b.

Solenoid valve 133 is installed on the specific side plate 132b, and this side plate 132b is facing to another side plate 132b that links to each other with swash plate 132c.In other words, solenoid valve 133 is arranged on the bottom of the first Room 30a and is oppositely arranged (be arranged on intercommunicating pore 132f at a distance of farthest) with intercommunicating pore 132f.More specifically, solenoid valve 133 is arranged to relative with the intercommunicating pore 132f in the path that provides oil return to turn back to the second Room 30b.

The operation of＜the first mode of execution 〉

The performed operation of motor 10 of structure is described as mentioned above referring now to accompanying drawing.

When motor 10 cut out, solenoid valve 133 was opened, make among win the chamber 30a and the second Room 30b oil level about equally.When cold start engine (this boot sequence relates to warm-up operation because from last time tail-off over and done with considerable time), thereby solenoid valve 133 cuts out the warm-up operation of ato unit 10.

When motor 10 started, oil pump 42 (referring to Fig. 1) was moved and is made that the inhalation port 41a place in oil strainer 41 produces a negative pressure in the first Room 30a.Machine oil among the first Room 30a sucks from inhalation port 41a then, and is fed to lubricated target mechanism by oil pump 42.

When carrying out warm-up operation, provide the solenoid valve 133 of the machine oil communication paths between the first Room 30a and the second Room 30b to close (the machine oil communication paths is closed).Therefore, after startup, the oil level among the first Room 30a reduces about 10 millimeters at once.In the warm-up operation process, the oil level among the first Room 30a is lower than the oil level among the second Room 30b.

After the startup through the regular hour after, oil return flow back into food tray 130 by means of gravity from lubricated target mechanism.As shown in Figure 2, oil return is divided into oil return R and oil return R '.Oil return R is temporarily received by swash plate 132c.Oil return R ' flows directly into the first Room 30a and the swash plate 132c that do not flow through (flowing into the first Room 30a by the first Room opening 30a1 that constitutes above-mentioned first way to cycle oil).

In the food tray 130 of foundation present embodiment, the flow proportional of oil return R and oil return R ' roughly drops on 5: 5 to 7: 3 scope interior (actual flow proportional can change according to runnability).Roughly the oil return R of half flows into the second Room 30b via intercommunicating pore 132f as oil return R1.It is remaining that roughly half flows into the first Room 30a as oil return R2 (via the first Room opening 30a1 that constitutes above-mentioned first way to cycle oil not via intercommunicating pore 132f) on swash plate 132c.Therefore, flow in the scope that the total recirculating oil quantity of the first Room 30a and the ratio between total recirculating oil quantity of second Room of flowing to drop on 7.5: 2.5 to 6.5: 3.5.This has guaranteed that the higher relatively oil return of a certain amount of temperature flows to the first Room 30a.Therefore, can quicken the process of warm-up operation.

As discussed previously, solenoid valve 133 cuts out during warm-up operation.Therefore, the machine oil that is fed to lubricated target member during warm-up operation is practically limited to the machine oil among the first Room 30a.Therefore, can quicken the process of warm-up operation.

The second Room 30b is arranged on the first Room 30a outside.Food tray divider 132 by the synthetic resin manufacturing is clipped between the first Room 30a and the second Room 30b.Thereby the food tray divider 132 and the second Room 30b form a thermal-protective coating between the first Room 30a and outside air.Therefore, the temperature rising of (and in lubricated target member) is quickened in the first Room 30a.Therefore, can quicken the process of warm-up operation further.

Simultaneously, owing to further carrying out of warm-up operation, the machine oil among the first Room 30a sucks by the inhalation port 41a of oil pump 42 via oil strainer 41 constantly.Oil return flows to the second Room 30b then constantly.Therefore, when warm-up operation further carried out, the degree of the oil level difference between the first Room 30a and the second Room 30b during from firm start (as discussed previously be roughly 10 millimeters) little by little increased.

When warm-up operation stopped, solenoid valve 133 was opened (the machine oil communication paths between the first Room 30a and the second Room 30b is opened).At this moment, as mentioned above, intercommunicating pore 132f is formed at second Room 30b top, and solenoid valve 133 is arranged on first Room 30a bottom (being lower than first Room opening 30a1 and the intercommunicating pore 132f).Therefore, the oil level among the second Room 30b increases because of the backflow of oil return.Therefore, to form a big relatively oil level between the first Room 30a that reduces poor because of starting at the second Room 30b and its oil level.

Therefore, when solenoid valve 133 is opened since between the first Room 30a and the second Room 30b pressure reduction---it is poor based on the oil level between the first Room 30a and the second Room 30b, and the machine oil among the second Room 30b flows in the first Room 30a.Similarly, flow to the second Room 30b along with stop back oil return R1 at warm-up operation via intercommunicating pore 132f, the machine oil among the second Room 30b is via placing the solenoid valve 133 apart from intercommunicating pore 132f farthest to flow into the first Room 30a.This has guaranteed to stop the circulation strong in food tray 130 of back machine oil at warm-up operation.Therefore, the institute's organic oil in the food tray 130 all is used for lubricated described lubricated target member.Therefore, prevent that motor 10 (referring to Fig. 1) is overheated and can not make the durability deterioration of machine oil.

The oil pan structure of＜foundation second mode of execution 〉

Fig. 3 illustrates according to viewgraph of cross-section second embodiment of the invention, that be included in the structure of the food tray 230 in the motor 10 shown in Figure 1.Fig. 3 (A) is a viewgraph of cross-section.Fig. 3 (B) is the sectional view along the section B-B among Fig. 3 (A).

(comprise the 3rd and the description of subsequently mode of execution) in the following description, be used for jointly first and the element branch of mode of execution subsequently be equipped with identical label and be not repeated in this description.Operation and function are equipped with the label (having adopted identical label numeral except that hundred) that is similar to the element that is used for first mode of execution with the middle similar elements branch of the food tray 130 (referring to Fig. 2) of foundation first mode of execution.For example, the food tray cover 231 of foundation second mode of execution is corresponding to the food tray cover 131 (referring to Fig. 2) according to first mode of execution.

In the food tray 230 of foundation present embodiment, food tray divider 232 is installed on the base plate 231a of food tray cover 231.In other words, food tray divider 232 is positioned on the bottom of food tray cover 231 inner spaces.

Food tray cover 231 comprises base plate 231a, side plate 231b and swash plate 231c, and they are similar to the corresponding part according to the food tray cover 131 (referring to Fig. 2) of first mode of execution.Flange portion 231d is provided with pump intake path 42b, and described pump intake path 42b is the machine oil path that is connected to oil purifier flow passage 43 upper ends.

Food tray divider 232 is by the synthetic resin board manufacturing.It comprises base plate 232a, inwall 232b, outer wall 232h and top board 232k.

Inwall 232b be a rectangle and be the member of tubulose, the base plate 231a of its lower ending opening contact food tray cover 231.Oil strainer 41 and oil purifier flow passage 43 are via the inner space of inserting the rectangular tube of inwall 232b under the upper end open of inwall 232b.In other words, the first Room 30a is formed by the inner space (first recess or first Room form recess) of the rectangular tube of inwall 232b.

Outer wall 232h is a tubular member.It contacts (being stacked and placed on the side plate 231b) with the side plate 231b of food tray cover 231.Inwall 232b is arranged in the inner space by the formed pipe of outer wall 232h.Base plate 232a is installed as the bridge member between the lower end of the lower end of inwall 232b and outer wall 232h.This base plate 232a is stacked on the base plate 231a of food tray cover 231.Top board 232k is installed as the bridge member between the upper end of the upper end of inwall 232b and outer wall 232h.

In other words, the second Room 30b is formed by the doughnut-shaped space that base plate 232a, inwall 232b, outer wall 232h and the top board 232k of food tray divider 232 sealed.

Part (right hand portion shown in Figure 3 near power train mechanism (not shown); First portion hereinafter referred to as) food tray divider 232 is provided with the through hole 232f that is formed among the top board 232k.The position of first portion is higher than other parts (second portion).In other words, through hole 232f is positioned at the summit of the second Room 30b.First portion is arranged in " F " oil level place (Fig. 3 does not comprise the oil level indicator 50 shown in Fig. 2) a little more than (exceeding several millimeters to about 2 centimetres) the first Room 30a.

In the face of the bottom near the specific inwall 232b of another inwall 232b of power train mechanism is provided with thermostatic valve device 233.In other words, thermostatic valve device 233 is positioned at the bottom of the first Room 30a and is arranged to relative with through hole 232f (be positioned at through hole 232f at a distance of farthest).

The housing of thermostatic valve device 233 comprises known wax formula thermostatic valve, and it for example is used for the cooling water car circulatory system.Thermostatic valve device 233 is configured such that when reaching predetermined valve and open temperature, and the enclosure interior (hereinafter being called " thermostatic valve device 233 inside " simply) by thermostatic valve device 233 between the first Room 30a and the second Room 30b machine oil takes place exchanges.Further, thermostatic valve device 233 is configured such that also valve opens ratio (the current flow passage section area of thermostatic valve device 233 inside and the ratio between the maximum fluidity passage sections area) and raise according to temperature and increase.

In other words, by the inner machine oil communication paths between the first Room 30a and the second Room 30b (being not less than valve at valve in opens when opening under the temperature of temperature) that forms of thermostatic valve device 233.When valve is opened the ratio maximum (100%), the machine oil passage sections area of thermostatic valve device 233 equals the area that radius is roughly 10 millimeters circle.

The structure of＜＜thermostatic valve device〉〉

Fig. 4 is the enlarged cross-sectional view that thermostatic valve device 233 shown in Figure 3 is shown.Fig. 4 (A) is illustrated in the thermostatic valve device 233 of closing under the low temperature.Fig. 4 (B) illustrates the thermostatic valve device of at high temperature opening 233.

Thermostatic valve device 233 comprises a metal valve body 233b who is filled with wax 233a.Valve body 233b comprises: valve disc 233b1, and the center of this valve disc 233b1 has a through hole and the roughly similar disk of its shape; Main body 233b2, the roughly similar cylinder of its shape also is provided with a chamber that is filled with wax 233a; And attachment portion 233b3, the roughly similar cylinder of its shape also is used for valve disc 233b1 is connected to main body 233b2.Bar 233c places in the described cylinder that is formed by attachment portion 233b3.The end of bar 233c is exposed to the chamber that is filled with wax 233a, and the other end is exposed to the outside of valve body 233b from the through hole that is positioned at valve disc 233b1 central authorities.

Wax 233a, valve body 233b and bar 233c are used to form a temperature-sensitive crushed element that can change its shape according to the oil temperature.Constitute the wax 233a of temperature-sensitive part of temperature-sensitive crushed element and the main body 233b2 that is filled with wax 233a and sealed by housing 233d, described housing 233d is metal construction and roughly is configured as and is similar to cylinder.Thermostatic valve device 233 so is provided with: main body 233b2 and housing 233d locate towards the first Room 30a.For the purpose that seals, sealing compound 233e is inserted into the through hole in the valve disc 233b1, makes the wax 233a that is packed in the valve body 233b not spill valve body 233b.

Housing 233d is provided with the first Room side opening 233d1 as through hole.The first Room side opening 233d1 allows the inner space of housing 233d to be communicated with space outerpace (the first Room 30a).The end of housing 233d is provided with through hole 233d2.The main body 233b2 that is filled with wax 233a of valve body 233b is exposed to the first Room 30a by described through hole 233d2.Further, the main body 233b2 of valve body 233b can move (slip) in this through hole 233d2.

The other end of housing 233d is provided with flange portion 233f, and the shape of this flange portion 233f is similar to disk and stretches out.When bolt B with the inwall 232b that nut N is tightened, simultaneously flange portion 233f is stacked and placed on food tray divider 232 when going up, thermostatic valve device 233 is fastened to inwall 232b.

The inboard of flange portion 233f is connected to the cover 233g towards second Room, should be formed by the member that is coated with metal that exposes towards the second Room 30b towards the cover of second Room.Be provided with the second Room side opening 233g1 towards the cover 233g of second Room as through hole.The other end of previous described bar 233c is fastened to the cover 233g towards second Room.Towards being shaped so that of second Room cover 233g (and valve disc 233b1): when towards the cover 233g contact valve disc 233b1 of second Room, valve disc 233b1 cut off housing 233d inner space with towards being communicated with between the inner space of the cover 233g of second Room.

Housing 233d inner space is provided with wind spring 233h, and this wind spring 233h is arranged to around valve body 233b.The end of wind spring 233h contacts with valve disc 233b1, and the other end and above-mentioned housing 233d one end in contact.

The structure of＜＜oil extraction bolt hole〉〉

Referring to Fig. 3, the base plate 231a of food tray cover 231 is provided with oil extraction bolt hole 231e1, the 231e2 as through hole.Oil extraction bolt hole 231e1 is arranged at the lowest portion of the first Room 30a, makes the machine oil that is stored among the first Room 30a to spill.Oil extraction bolt hole 231e2 forms and makes the machine oil that is stored among the second Room 30b to spill.The base plate 232a of food tray divider 232 is provided with the oil extraction bolt hole 232e that is communicated with oil extraction bolt hole 231e2.Oil extraction bolt hole 231e1 and 231e2 are formed with screw thread, make oil extraction bolt 234a and 234b to be screwed into wherein.

The structure of＜＜oil return guide member〉〉

The top of the inner space of food tray cover 231 is provided with oil return guide member 235.Oil return guide member 235 is the members that are bathtub shape, and it can temporarily be stored in machine oil wherein.It is to have the molding and forming synthetic resin of low heat conductivity and be made of parts.More specifically, the inner space of oil return guide member 235 is provided with oil return acceptance division 30c, and this oil return acceptance division 30c is as a recess (second recess) that is used to receive oil return.The detailed construction of oil return guide member 235 is described below.

Oil return guide member 235 comprises: swash plate 235c, this swash plate 235c are similar to the swash plate 132c (referring to Fig. 2) of the food tray divider 132 of foundation first mode of execution in structure and function aspects; Base plate 235d, this base plate 235d links to each other with swash plate 132c; And baffle plate 235j, this baffle plate 235j links to each other with base plate 235d.

Base plate 235d is attached to the part place that through hole 232f is set in the top board 232k of food tray divider 232.The bottom of base plate 235d is provided with at least one intercommunicating pore 235f, and described intercommunicating pore 235f is similar to the intercommunicating pore 132f (referring to Fig. 2) of foundation first mode of execution in structure and function aspects.This intercommunicating pore 235f constitutes according to second way to cycle oil of the present invention.Intercommunicating pore 235 is communicated with through hole 232f.The part oil return of being caught by oil return guide member 235 can flow into the second Room 30b via through hole 232f and intercommunicating pore 235f.The machine oil passage sections area of intercommunicating pore 235f (being total machine oil passage sections area when being provided with two or more intercommunicating pore 235f perhaps) is greater than the machine oil passage sections area of thermostatic valve device 233.

Baffle plate 235j is in the face of the first Room 30a.Baffle plate 235j is arranged to temporary transient flow (referring to the arrow R ' among Fig. 2) that is intended to not flow through swash plate 235c and flows into the oil return of the first Room 30a that stop.Baffle plate 235j can prevent the mobile foaming of oil return R ' for example or prevent machine oil fluctuation among the first Room 30a.

Baffle plate 235j bottom is provided with intercommunicating pore 235g, and it constitutes according to first way to cycle oil of the present invention.Intercommunicating pore 235g forms and makes the part oil return of being caught by oil return guide member 235 (oil return acceptance division) to flow into the first Room 30a via intercommunicating pore 235g.The machine oil passage sections area of intercommunicating pore 235g is greater than the machine oil passage sections area of above-mentioned intercommunicating pore 235f.In other words, oil return guide member 235 is configured such that major part (roughly 60-80%) oil return of being caught by oil return guide member 235 flows to the first Room 30a via intercommunicating pore 235g.

When from top view, intercommunicating pore 235g is provided with near oil strainer 41, shown in Fig. 3 (B).Therefore, the oil return that flows to the first Room 30a via intercommunicating pore 235g can directly suck from the inhalation port 41a of oil strainer 41.

Intercommunicating pore 235f and 235g are provided with to such an extent that be higher than thermostatic valve device 233.In other words, thermostatic valve device 233 is provided with to such an extent that be lower than intercommunicating pore 235f and 235g.Further, thermostatic valve device 233 is positioned at the bottom of the first Room 30a and is arranged to relative with intercommunicating pore 235f (being positioned at the farthest apart from intercommunicating pore 235f).

The operation of＜＜the second mode of execution〉〉

When carrying out warm-up operation, the oily temperature among the first Room 30a is lower than the valve of above-mentioned thermostatic valve device 233 and opens temperature.Therefore, the thermostatic valve device 233 that constitutes the machine oil communication paths between the first Room 30a and the second Room 30b is closed (above-mentioned machine oil communication paths is closed).More specifically, when valve disc 233b1 shown in Fig. 4 (A) when cover 233g towards second Room contacts, be communicated with disconnection between the first Room 30a and the second Room 30b.

When the oily temperature among the first Room 30a reached predetermined valve and opens temperature, warm-up operation stopped.That is, the thermostatic valve device 233 that constitutes the machine oil communication paths between the first Room 30a and the second Room 30b is opened (the machine oil communication paths between the first Room 30a and the second Room 30b is opened).More specifically, wax 233a melts and increases its three-dimensional volume, shown in Fig. 4 (B), makes the above-mentioned end of bar 233c be pushed out the chamber that is filled with wax 233a.Then, valve body 233b overcomes the thrust of wind spring 233h and is pushed to the first Room 30a.This is producing a gap towards between the cover 233g of second Room and the valve disc 233b1.Therefore, between the first Room side opening 233d1 and the second Room side opening 233g1, formed a machine oil communication paths by the gap in the housing 233d.

In thermostatic valve device 233, valve is opened ratio (the current flow passage section area of machine oil communication paths and the ratio between the maximum fluidity passage sections area) and is raise along with temperature subsequently and increase.In other words, valve body 233b is arranged in such position: the thrust of wind spring 233h and wax 233a expand valve body 233b is pushed to the equilibrium of forces of the first Room 30a according near the oil temperature of first Room the thermostatic valve device 233.Therefore, the exchange of the machine oil in the machine oil communication paths changes according to the oil temperature.

Be equipped with motor 10 (referring to Fig. 1) to move in an identical manner with being equipped with motor according to the food tray 130 of first mode of execution according to the food tray 230 of structure as mentioned above of second mode of execution.Further, be equipped with the motor 10 of the food tray 230 of foundation second mode of execution that following advantage is provided.

In the food tray 230 of foundation present embodiment, most of oil return is temporarily received by oil return acceptance division 30c---and described oil return acceptance division 30c is formed by the inner space of oil return guide member 235, flow back into the first Room 30a and the second Room 30b via the intercommunicating pore 235f and the 235g that are arranged in the oil return guide member 235 then.The part oil return can just not receive by oil return guide member 235 and directly flow back into the first Room 30a and the second Room 30b via intercommunicating pore 235f and 235g.

At this moment, in the food tray of foundation present embodiment, food tray divider 232 is configured such that the first portion of food tray divider 232, and---being provided with the through hole 232f that is used to provide the connection between the oil return acceptance division 30c and the second Room 30b in this first portion---is arranged to be higher than remaining second portion.First portion is arranged to a little more than " F " oil level among the first Room 30a.Allow through hole 232f and intercommunicating pore 235f that the second Room 30b is flowed back in oil return to be formed on the position corresponding, and be provided with than thermostatic valve device 233 height with the summit of the second Room 30b.This guarantees that in the warm-up operation process oil level among the second Room 30b can be higher than the oil level among the first Room 30a.Therefore, when warm-up operation finished, the pressure reduction between the first Room 30a and the second Room 30b can increase.

Further, in the food tray 230 of foundation present embodiment, thermostatic valve device 233 is positioned at the bottom of the first Room 30a and is arranged to relative with intercommunicating pore 235f with through hole 232f.Therefore, machine oil among the second Room 30b flows into the first Room 30a from thermostatic valve device 233, it is relative with (be located immediately at through hole 232f and intercommunicating pore 235f below) position that this thermostatic valve device 233 is arranged to, and in this position, the oil level among the second Room 30b raises because of returning of oil return.

Thus, guaranteed to stop the circulation strong in food tray 230 of back machine oil according to the structure of present embodiment at warm-up operation.

The structure of the food tray of＜foundation the 3rd mode of execution 〉

Fig. 5 is a viewgraph of cross-section, and is schematically illustrated according to structure third embodiment of the invention, that be included in the food tray 330 in the motor 10 shown in Figure 1.Fig. 6 is the section plan that food tray 330 is shown.Fig. 6 is the sectional view along Fig. 5 middle section C-C.Fig. 5 is the sectional view along Fig. 6 middle section D-D.Referring now to Fig. 5 and 6 structure according to the food tray 330 of present embodiment is described.

Food tray 330 according to present embodiment comprises: food tray cover 331, this food tray cover are made by the tabular component that is bathtub shape and engine cylinder-body 20 openings above placing; Be positioned at the food tray divider 332 of food tray cover 331 inside; Be installed in the thermostatic valve device 333 on the food tray divider 332; And the oil extraction bolt 334 that is positioned at above-mentioned food tray cover 331 lowest parts.

＜＜food tray cover arrangement〉〉

Food tray cover 331 is the members that constitute 330 times covers of food tray.It forms by pressing steel plate and is made of parts.

All acies at the base plate 331a of food tray cover 331 are provided with side plate 331b with closed bottom 331a.Food tray cover 331 is configured such that machine oil can be stored in the space of sealing by base plate 331a and side plate 331b.Its lowest position that is positioned at the base plate 331a of this bottom, space is provided with oil extraction bolt hole 331e.Oil extraction bolt hole 331e is formed with screw thread, makes oil extraction bolt 334 to be screwed into wherein.

Food tray cover 331 is shaped so that machine oil flows to oil extraction bolt hole 331e swimmingly by gravity on base plate 331a and side plate 331b.In other words, when when oil extraction bolt hole 331e removes oil extraction bolt 334, the machine oil that is stored in the inner space of food tray cover 331 can flow out food tray 330 via oil extraction bolt hole 331e fully by gravity.

Flange portion 331d is formed at the upper end week acies place of the side plate 331b of food tray cover 331.Flange portion 331d stretches out from the upper end of side plate 331b.Flange portion 331d can be attached to the flange portion 336a of the lower end that is formed at lower box 336, and described lower box 336 is installed among the cylinder block 20a.In other words, lower box 336 is installed in the lower end of cylinder block 20a, and food tray cover 331 is fixed to the flange portion 336a of the lower end that is formed at lower box 336.

Lower box 336 is arranged to cover the downside of bent axle 22, and described bent axle is arranged at the lower end of cylinder block 20a.Lower box 336 comprises above-mentioned flange portion 336a, from the upwardly extending side plate 336b of flange portion 336a, the swash plate 336c and the above-mentioned flange portion 336d that is arranged on lower box 336 upper ends that extend from side plate 336b upper end.Flange portion 336d stretches out.On the other hand, flange portion 336a from side plate 336b lower end outwards and extend internally.The flange portion 331d of food tray cover 331 is fastened to the outside of the flange portion 336a of lower box 336 by screw bolt and nut.

Above-mentioned swash plate 336c is coupled to the side plate 336b part (right hand portion among Fig. 5) of the close power train mechanism (not shown) of lower box 336.The gradient of swash plate 336c is made as and makes the oil return that is received by swash plate 336c can supply the inner space to food tray cover 331 lentamente.

The structure of＜＜food tray divider〉〉

Food tray divider 332 comprises base plate 332a, side plate 332b, upper clapboard 332c and lateral partitions 332d.It is made by the synthetic resin with low heat conductivity and is made of parts.

At all acies of food tray divider 332 base plate 332a, be provided with side plate 332b to seal base plate 332a.(first recess or first Room form recess) forms in the space that the first Room 30a is sealed by base plate 332a and side plate 332b basically.The second Room 30b is formed by the space that is positioned at side, 30a bottom, first Room and seal by food tray cover 331 and food tray divider 332.

Be positioned at side plate 332b upper end and towards the first Room opening 30a1 of cylinder block 20a opening form make because the oil return that gravity falls from cylinder block 20a through and enter into the first Room 30a.In other words, provide according to first way to cycle oil of the present invention by the first Room opening 30a1.The height of the first Room 30a (among the figure upper limit of direction) up makes the upper end of arriving at the lateral partitions 332d that will be described below.

The bottom of the side plate 332b of food tray divider 332 is provided with thermostatic valve device 333.The thermostatic valve device of the structure of thermostatic valve device 333 and previous described foundation second mode of execution 233 identical (therefore, being applicable to structure) according to the thermostatic valve device 333 of present embodiment according to the description of the thermostatic valve device 233 (referring to Fig. 4) of second mode of execution.Thermostatic valve device 333 is arranged to be lower than " L " oil level.Oil strainer 41 is arranged to separate a little horizontal equivalent with thermostatic valve device 333 but is arranged to be lower than thermostatic valve device 333.

Flange portion 332b1 stretches out from the side plate 332b upper end of food tray divider 332.This flange portion 332b1 is fastened to the inside of the flange portion 336a of lower box 336 by screw bolt and nut, makes food tray divider 332 support by the inner space of food tray cover 331.

＜＜oil return apotheca〉〉

Oil return apotheca 30d is formed at the top of the first Room 30a and the second Room 30b, and places near the swash plate 336c of lower box 336.Oil return apotheca 30d is used to store the space of oil return of swash plate 336c of flowing through downwards.The space that the upper clapboard 332c of the parts by belonging to food tray divider 332 and the side plate 336b of lateral partitions 332d and lower box 336 are sealed provides oil return apotheca 30d.This space constitutes oil return apotheca 30d, this oil return apotheca form the basis second recess of the present invention.To the detailed construction of oil return apotheca 30d be described now.

Upper clapboard 332c is the member that constitutes the base plate of oil return apotheca 30d.In other words, upper clapboard 332c places the top of the first Room 30a and the second Room 30b, thereby the isolation between the first Room 30a and the second Room 30b and the oil return apotheca 30d is provided.Upper clapboard 332c is connected to the part (right hand portion among Fig. 5 of close aforementioned power train mechanism (not shown) of the side plate 332b of food tray divider 332; Be food tray divider 332 side plate 332b in the face of the part of thermostatic valve device 333 mounting portions) the upper end.

Lateral partitions 332d be constitute oil return apotheca 30d motor vertically (along bent axle 22 vertically) the member of an end.This lateral partitions 332d be arranged in the face of constitute oil return apotheca 30d motor on vertically the other end and the side plate 336b that links to each other with swash plate 336c.

Upper clapboard 332c is provided with the through hole 332f that is communicated with the top of the second Room 30b.Through hole 332f is configured such that the front end of oil level indicator 50 can be inserted into wherein.Through hole 332f is shaped so that: when oil level indicator 50 is inserted among the through hole 332f, form the narrow space with predetermined width between the internal surface of oil level indicator 50 and through hole 332f.Term " the narrow space with predetermined width " refers to a such gap: it does not allow low temperature, heavy-bodied oil in the warm-up operation process easily to pass through, but (for example about 60 ℃) allow low viscosity machine oil easily to pass through when opening the relatively-high temperature of temperature near thermostatic valve device 333 valves.

That is, in the present embodiment, form by above-mentioned through hole 332f according to second way to cycle oil of the present invention.Through hole 332f be positioned at along motor vertically (along bent axle 22 vertically) place the relative position of thermostatic valve device 333 of the first Room 30a, one end.In other words, through hole 332f be arranged to thermostatic valve device 333 from a distance.More specifically, through hole 332f be positioned at the first Room 30a along the motor close position of the other end longitudinally.

Further, through hole 332f forms and makes the machine oil suction pipe can be set as from food tray 330 to discharge whole machine oil, the machine oil suction pipe be included in can buy, be configured to suck in the machine oil oil changer of machine oil.Further, through hole 332f forms and makes to set and be used for fresh machine oil is imported machine oil ingress pipe in the food tray 330.

In the present embodiment, upper clapboard 332c and through hole 332f are arranged on and the corresponding height of " L " oil level place.In the present embodiment, lateral partitions 332d is configured such that its upper end is arranged on and the corresponding height of " F " oil level place.

Oil return apotheca 30d is configured such that backflow can cross the upper end of the lateral partitions 332d that constitutes oil return apotheca 30d upper end and enter the first Room 30a via the first Room opening 30a1.

Upper clapboard 332c and lateral partitions 332d suitably are shaped (for example about lateral partitions 332d among the plane shape of upper clapboard 332c among Fig. 6 and lateral partitions 332d and Fig. 5 height), make the whenever all suitably circulation of machine oil under any running state of motor 10.In other words, upper clapboard 332c and lateral partitions 332d suitably be shaped the height and the existence of slit and hole (for example about), make an amount of oil return (as in conjunction with the described amount of aforementioned embodiments) directly flow back to the first Room 30a via the first Room opening 30a1, thereby quicken warm-up operation fully, avoid when motor starts machine oil deficiency among the first Room 30a simultaneously under low-down temperature.Further, the height of upper clapboard 332c and lateral partitions 332d makes oil return an amount of, that be stored among the oil return apotheca 30d flow into the second Room 30b via through hole 332f, thereby causes the powerful oil circulation between the second Room 30b and the first Room 30a.

More specifically, the food tray 330 according to present embodiment is configured such that roughly the opening of the cylinder block 20a lower end of 30-60% is directly faced the first Room 30a.In other words, be configured such that according to the food tray 330 of present embodiment the opening surface of the cylinder block 20a lower end of 40-70% roughly is to oil return apotheca 30d and swash plate 336c.Food tray divider 332 suitably is shaped, make the roughly oil return of 30-60% directly flow back to the first Room 30a and roughly the oil return of 40-70% temporarily receive (oil return that part receives can be flow through lateral partitions 332d and enter the first Room 30a) by oil return apotheca 30d.

The structure of＜＜float-controlled valve〉〉

The base plate 332a of food tray divider 332 is provided with oil drainage hole 332e.Oil drainage hole 332e is formed on the extreme lower position of first Room.The diameter of oil drainage hole 332e is big (for example diameter is approximately 20 millimeters), even make low temperature (for example 0 ℃), full-bodied machine oil also can flow out the first Room 30a (and flowing to the second Room 30b).Oil drainage hole 332e is provided with a float-controlled valve 337.Described float-controlled valve 337 comprises float 337a, connecting rod 337b and valve disc 337c.

Float 337a is arranged in the first Room 30a and is lower than the made of machine oil by proportion.Float 337a is installed on the end of connecting rod 337b.The other end of connecting rod 337b is connected to valve disc 337c.Valve disc 337c is arranged to towards the second Room 30b.When valve disc 337c contacted the base plate 332a of food tray divider 332, oil drainage hole 332e was blocked from the bottom and clogs.

Float-controlled valve 337 is configured such that the buoyancy of float 337a upwards pushes valve disc 337c when the oil level among the first Room 30a is higher than middle part on thermostatic valve device 333 short transverses, thereby makes valve disc 337c stop up oil drainage hole 332e from the bottom.

The operation of＜the three mode of execution 〉

Motor 10 with the food tray 330 that is configured to aforesaid foundation the 3rd mode of execution is in fact to move with having according to the motor of the food tray 130 of first mode of execution and have according to the identical mode of the motor of the food tray 230 of second mode of execution.In addition, the motor 10 with food tray 330 of foundation the 3rd mode of execution provides the 3rd mode of execution distinctive effect, and is as described below.

When the motor 10 of foundation present embodiment started, bent axle 22 rotated and operation oil pump 42.Then, the machine oil in the first Room 30a is via taking out on the oil strainer 41 that is arranged on first Room 30a bottom, and is fed to for example member of lubricated target such as piston 21 and bent axle 22 mechanism subsequently.

And then (in the process of warm-up operation) after the cold start-up, the oily temperature among the first Room 30a is lower than the valve of above-mentioned thermostatic valve device 333 and opens temperature.Therefore, the thermostatic valve device 333 that is set in place in the machine oil communication paths between the first Room 30a and the second Room 30b is closed (the machine oil communication paths is closed).Therefore, oil level among the first Room 30a reduces (for example about 10 millimeters), is lower than oil level among the second Room 30b until it.

When after startup through during a certain amount of time, oil return flow back into food tray 330 by gravity from lubricated target mechanism.The part oil return directly flows to the first Room 30a via the first Room opening 30a1.The oil return of directly flowing back to the first Room 30a oil temperature among the first Room 30a that raise.Because thermostatic valve device 333 is closed as described above in the warm-up operation process, only be that the machine oil among the first Room 30a is fed to lubricated target mechanism.Therefore, quickened the process of warm-up operation.

The oil return that does not directly flow to the remaining part of the first Room 30a is temporarily received by oil return apotheca 30d.More specifically, this oil return directly or via the swash plate 336c of lower box 336 flows to oil return apotheca 30d from lubricated target mechanism.Reach predetermined temperature (for example about 60 ℃) before in the oil return that flows into oil return apotheca 30d, oil return can not be easily by the narrow gap between through hole 332f and the oil level indicator 50.Therefore, oil return temporarily is stored among the oil return apotheca 30d.

When the predetermined valve that reaches thermostatic valve device 333 when the oily temperature among the first Room 30a was opened temperature, warm-up operation stopped.In other words, provide the thermostatic valve device 333 of the machine oil communication paths between the first Room 30a and the second Room 30b to open (the machine oil communication paths between the first Room 30a and the second Room 30b is opened).Then, result from machine oil communication paths near the thermostatic valve device 333 of suction function being formed on oil strainer 41 in the oil strainer 41.

When the oil return in being stored in oil return apotheca 30d reached predetermined high temperature, the high temperature oil return was by the narrow gap between through hole 332f and the oil level indicator 50 and flow to the second Room 30b.Machine oil is fed to the top of the second Room 30b then in the position relative with thermostatic valve device 333, make that the oil level among the second Room 30b temporarily raises.When machine oil is fed to the top of the second Room 30b (the instantaneous rising of oil level among the second Room 30b), the oil level difference between the second Room 30b and the first Room 30a---aspirate machine oil by oil strainer 41 from this first Room 30a---constantly increases.In other words, near thermostatic valve device 333, hydraulic difference occurs, make machine oil flow to the first Room 30a from the second Room 30b.

Then, the machine oil among the second Room 30b suitably flows to the first Room 30a via the machine oil communication paths that is formed in the thermostatic valve device 333.Thereby, form an oil circulation path, it is used for by oil purifier flow passage 43, oil pump 42, lubricated target mechanism, oil return apotheca 30d, through hole 332f, the second Room 30b, thermostatic valve device 333 machine oil being moved on to the first Room 30a from oil strainer 41.This oil circulation path allows the whole machine oil in the food tray 330 suitably to circulate.

In thermostatic valve device 333, valve is opened ratio (the current flow passage section area of machine oil communication paths and the ratio between the maximum fluidity passage sections area) and is raise according to temperature subsequently and increase.The exchange of machine oil changes according to the oil temperature then in the machine oil communication paths.

In the food tray 330 of foundation present embodiment, oil return apotheca 30d is arranged to be connected by through hole 332f with the top of second Room 30.Simultaneously, oil return apotheca 30d and through hole 332f are provided with to such an extent that be higher than thermostatic valve device 333.Then, during warm-up operation, the oil level among the second Room 30b can be higher than the oil level among the first Room 30a.This has guaranteed that the pressure reduction between the first Room 30a and the second Room 30b can increase when warm-up operation finishes.

In the food tray 330 of foundation present embodiment, thermostatic valve device 333 is positioned at the bottom of the first Room 30a and is arranged to relative with through hole 332f.Therefore, the machine oil among the second Room 30b flows to the first Room 30a by thermostatic valve device 333, and described thermostatic valve device 333 is arranged on away from following position: in this position, the oil level of second Room is owing to the backflow of oil return raises.Therefore, guarantee that according to the structure of present embodiment the oil circulation that stops in the food tray 330 of back at warm-up operation is more powerful.

In the food tray 330 of foundation present embodiment, food tray divider 332 (upper clapboard 332c) is provided with through hole 332f.When the front end of oil level indicator 50 inserted through hole 332f, oil level indicator 50 was supported by food tray divider 332.Therefore, in running, the structure that is adopted can suitably support oil level indicator 50.Through hole 332f is configured to accept the insertion of the machine oil suction pipe or the machine oil ingress pipe of oil changer.Therefore, the structure that is adopted is convenient to change oil.

In the food tray 330 of foundation present embodiment, the oil drainage hole 332e that is formed at the first Room 30a extreme lower position is provided with float-controlled valve 337.Even this has guaranteed that the oil level among the first Room 30a is greatly reducing during the warm-up operation (for example when oil level is lower than middle part on thermostatic valve device 333 short transverses, when promptly engine oil viscosity is very high after and then motor starts under low-down temperature), float-controlled valve 337 moves down opening oil drainage hole 332e, thereby by oil drainage hole 332e the machine oil among the second Room 30b is fed to the first Room 30a.

Simultaneously, when oil mass is enough (oil level among the first Room 30a is higher than " L " oil level), the buoyancy of float 337a moves to extreme higher position in its moving range with float-controlled valve 337.Valve disc 337c then by on push away and block oil drainage hole 332e from the below.Thus, during warm-up operation, oil drainage hole 332e is suitably blocked to live.

In the time all machine oil need being discharged food tray 330 in order to change oil etc. (when when oil drainage hole 332e removes oil extraction bolt 334 or when the machine oil suction pipe of oil changer insert through hole 332f, when removing oil level indicator 50 simultaneously), the oil level decline among the first Room 30a and/or the second Room 30b is to move down float-controlled valve 337.The relatively large oil drainage hole 332e of diameter opens then, makes all machine oil can discharge the first Room 30a at once.

The structure of the food tray of＜foundation the 4th mode of execution 〉

Fig. 7 is a viewgraph of cross-section, illustrates according to structure four embodiment of the invention, that be included in the food tray 430 in the motor 10 shown in Figure 1.Referring now to Fig. 7 structure according to the food tray 430 of present embodiment is described.

Food tray 430 according to present embodiment comprises: food tray cover 431, this food tray cover arrangement become identical with the food tray cover 331 (referring to Fig. 5) of foundation the 3rd mode of execution.More specifically, base plate 431a, side plate 431b, flange portion 431d and the oil extraction bolt hole 431e of formation food tray cover 331 are configured to identical with base plate 331a, the side plate 331b, flange portion 331d and the oil extraction bolt hole 331e (referring to Fig. 5) that describe in conjunction with the 3rd mode of execution.

Thermostatic valve device 433 according to present embodiment is configured to identical with oil extraction bolt 334 (referring to Fig. 5) with the thermostatic valve device 333 of foundation the 3rd mode of execution with oil extraction bolt 434.

Lower box 436 according to present embodiment is configured to identical with the lower box 336 (referring to Fig. 5) of foundation the 3rd mode of execution.More specifically, flange portion 436a, side plate 436b, swash plate 436c and the flange portion 436d of formation lower box 436 are configured to identical with flange portion 336a, side plate 336b, swash plate 336c and the flange portion 336d (referring to Fig. 5) of foundation the 3rd mode of execution.

Float-controlled valve 437 according to present embodiment also is configured to identical with the float-controlled valve 337 (referring to Fig. 5) of foundation the 3rd mode of execution.More specifically, float-controlled valve 437 comprises float 437a, connecting rod 437b and valve disc 437c.

The structure of＜＜food tray divider〉〉

Food tray divider 432 according to present embodiment is the members that are bathtub shape, and it comprises base plate 432a and side plate 432b.It is by the synthetic resin manufacturing with low heat conductivity.

Base plate 432a is provided with and the identical oil drainage hole 432e of corresponding component in the 3rd mode of execution.At all acies of base plate 432a, side plate 432b is set to seal base plate 432a.(first recess or first Room form recess) forms in the space that the first Room 30a is roughly sealed by base plate 432a and side plate 432b.In short transverse (top among the figure), the first Room 30a forms the height of the connecting part of the side plate 436b that arrives at lower box 436 and swash plate 436c.The side plate 436b of lower box 436 and the connecting part of swash plate 436c are formed on the height place corresponding with " F " oil level.The second Room 30b is formed by the below that is positioned at the first Room 30a and side and the space of being sealed by food tray cover 431 and food tray divider 432.

Flange portion 432b1 so forms: it stretches out from side plate 432b upper end.Because flange portion 432b1 is fastened to the inside of the flange portion 436a of lower box 436 by screw bolt and nut, so food tray divider 432 is supported in the inner space of food tray cover 431.

Flat oil level indicator supporting element 432c is formed on the side plate 432b part near above-mentioned power train mechanism (not shown).In other words, oil level indicator supporting element 432c is formed at the right hand portion of Fig. 7 latus inframedium 432b, that is, food tray divider 432 side plate 432b with the regional relative part that thermostatic valve device 433 is installed.The oil level indicator supporting element 432c that is supporting oil level indicator 50 is provided with oil return through-hole 432f, being communicated with between the top that this through hole 432f forms the first Room 30a and the top of the second Room 30b.Oil return through-hole 432f constitutes according to second way to cycle oil of the present invention, and is configured to identical with the through hole 332f (referring to Fig. 5) of foundation the 3rd mode of execution.

More specifically, be according to the structure of the food tray divider 432 of present embodiment and difference according to the food tray divider 332 (referring to Fig. 5) of the 3rd mode of execution: the former does not comprise oil return apotheca 30d, upper clapboard 332c and lateral partitions 332d (referring to Fig. 5).Be configured such that nearly all from cylindrical space (its corresponding to according to first way to cycle oil of the present invention) according to the food tray divider 432 of present embodiment---its side plate 436b seal and towards cylinder block 20a opening---by lower box 436 oil return of flowing back to all at first flows to the top of the first Room 30a, and the oil return that this part is arranged in 30a top, first Room can be flowed back to the second Room 30b via oil return through-hole 432f according to the temperature rise of oil return.

The operation of＜the four mode of execution 〉

When the motor 10 of foundation present embodiment started, bent axle 22 rotated and operation oil pump 42.Then, the machine oil in the first Room 30a is fed to for example member of lubricated target such as piston 21 and bent axle 22 mechanism via oil strainer 41.

When carrying out warm-up operation, provide the thermostatic valve device 433 of the machine oil communication paths between the first Room 30a and the second Room 30b to close (the machine oil communication paths is closed).Therefore, oil level among the first Room 30a reduces, and is lower than oil level among the second Room 30b until it.

When after startup through during a certain amount of time, oil return flow back into food tray 430 by gravity from lubricated target mechanism.Most of oil return directly flows to the first Room 30a via the first Room opening 30a1.Therefore the oil return of directly flowing back to the first Room 30a oil temperature among the first Room 30a that raise has quickened the process of warm-up operation.

When the predetermined valve that reaches thermostatic valve device 433 when the oily temperature among the first Room 30a is opened temperature, constitute the opening of thermostatic valve device 433 of the machine oil communication paths between the first Room 30a and the second Room 30b.Therefore, the machine oil communication paths between the first Room 30a and the second Room 30b is opened.Then, result from machine oil communication paths near the thermostatic valve device 433 of suction function being formed on oil strainer 41 in the oil strainer 41.

When the oil return that is arranged in 30a top, first Room reached predetermined high temperature (for example about 60 ℃), the high temperature oil return was by the narrow gap between oil return through-hole 432f and the oil level indicator 50 and flow into the second Room 30b.Machine oil is fed to the top of the second Room 30b in the position relative with thermostatic valve device 433 then, thereby makes the oil level among the second Room 30b temporarily raise.When machine oil is fed to the top of the second Room 30b (the instantaneous rising of oil level among the second Room 30b), the oil level difference between the second Room 30b and the first Room 30a---aspirate machine oil by oil strainer 41 from this first Room 30a---constantly increases.In other words, near thermostatic valve device 433, hydraulic difference occurs, make machine oil flow to the first Room 30a from the second Room 30b.

Then, the machine oil among the second Room 30b flows into the first Room 30a via the machine oil communication paths that is formed in the thermostatic valve device 433.Thereby, forming an oil circulation path, it is used for by oil purifier flow passage 43, oil pump 42, lubricated target mechanism, oil return through-hole 432f, the second Room 30b, thermostatic valve device 433 machine oil being moved on to the first Room 30a from oil strainer 41.This oil circulation path allows the whole machine oil in the food tray 330 suitably to circulate.

In the food tray 430 of foundation present embodiment, oil return through-hole 432f is provided with to such an extent that be higher than thermostatic valve device 433.This makes it possible to guarantee that in the warm-up operation process oil level in the second Room 30b is higher than the oil level in the first Room 30a.Therefore, can when finishing, warm-up operation increase pressure reduction between the first Room 30a and the second Room 30b.

In the food tray 430 of foundation present embodiment, thermostatic valve device 433 is positioned at the bottom of the first Room 30a and is arranged to relative with oil return through-hole 432f.Therefore, the machine oil among the second Room 30b flows to the first Room 30a by thermostatic valve device 433, and described thermostatic valve device 433 is arranged on away from following position: in this position, the oil level of second Room is owing to the backflow of oil return raises.Therefore, guarantee to increase according to the structure of present embodiment at the oil circulation vigor that warm-up operation stops in the food tray 430 of back.

In the food tray 430 of foundation present embodiment, oil return through-hole 432f can support oil level indicator 50, and identical with the situation of the 3rd mode of execution, allows to realize changing oil.

In the food tray 430 of foundation present embodiment, identical with the situation of the 3rd mode of execution, even when the oil level among the first Room 30a is very low---this is easy to just to have started the back at for example motor under low-down temperature and takes place, and float-controlled valve 437 also allows by oil drainage hole 432e the machine oil among the second Room 30b to be fed to the first Room 30a.Float-controlled valve 437 guarantees that also oil drainage hole 432e suitably blocks in the warm-up operation process.Further, in the time all machine oil need being discharged food tray 330 in order to change oil, float-controlled valve 437 is opened the relatively large oil drainage hole 432e of diameter, makes all machine oil can discharge the first Room 30a at once.

The structure of the food tray of＜foundation the 5th mode of execution 〉

Fig. 8 is a viewgraph of cross-section, illustrates according to structure fifth embodiment of the invention, that be included in the food tray 530 in the motor 10 shown in Figure 1.Referring now to Fig. 8 structure according to the food tray 530 of present embodiment is described.

Food tray 530 according to present embodiment comprises: food tray cover 531, this food tray cover arrangement become identical with the food tray cover 331 (referring to Fig. 5) of foundation the 3rd mode of execution.More specifically, base plate 531a, side plate 531b, flange portion 531d and the oil extraction bolt hole 531e of formation food tray cover 531 are configured to identical with base plate 331a, the side plate 331b, flange portion 331d and the oil extraction bolt hole 331e (referring to Fig. 5) that describe in conjunction with the 3rd mode of execution.

The first thermostatic valve device 533 according to present embodiment is configured to identical with oil extraction bolt 334 (referring to Fig. 5) with the thermostatic valve device 333 of foundation the 3rd mode of execution with oil extraction bolt 534.

Lower box 536 according to present embodiment is configured to identical with the lower box 336 (referring to Fig. 5) of foundation the 3rd mode of execution.More specifically, flange portion 536a, the swash plate 536c of formation lower box 536 and flange portion 536d are configured to identical with flange portion 336a, the swash plate 336c and the flange portion 336d (referring to Fig. 5) that describe in conjunction with the 3rd mode of execution.

Float-controlled valve 537 according to present embodiment also is configured to identical with the float-controlled valve 337 (referring to Fig. 5) of above-mentioned foundation the 3rd mode of execution.More specifically, float-controlled valve 537 comprises float 537a, connecting rod 537b and valve disc 537c.

The structure of＜＜food tray divider〉〉

Food tray divider 532 according to present embodiment comprises base plate 532a, side plate 532b, upper clapboard 532c and lateral partitions 532d.It is by the synthetic resin manufacturing with low heat conductivity.

Base plate 532a is provided with and the identical oil drainage hole 532e of corresponding component in the 3rd mode of execution.At all acies of base plate 532a, side plate 532b is set to seal base plate 532a.(first recess or first Room form recess) forms in the space that the first Room 30a is roughly sealed by base plate 532a and side plate 532b.The second Room 30b is formed by the below that is positioned at the first Room 30a and side and the space of being sealed by food tray cover 531 and food tray divider 532.

The upper end of side plate 532b is positioned at the height place with " F " oil level correspondence.Formation is positioned at side plate 532b upper end and towards the first Room opening 30a1 of cylinder block 20a opening, make the oil return that falls from cylinder block 20a by gravity can by and enter in the first Room 30a.In other words, the first Room opening 30a1 provides according to first way to cycle oil of the present invention.

Flange portion 532b1 so forms: it stretches out from side plate 532b upper end.Because flange portion 532b1 is fastened to the inside of the flange portion 536a of above-mentioned lower box 536 by screw bolt and nut, so food tray divider 532 is supported in the inner space of food tray cover 531.

Flat part 532b2 is formed at the middle part near the side plate 532b of above-mentioned power train mechanism (not shown).In other words, flat part 532b2 is formed at the right hand portion among Fig. 8, promptly with the side plate 532b part of the regional relative food tray 532 that thermostatic valve device 533 is installed.Flat part 532b2 extend internally (towards the first Room 30a).This flat part 532b2 is arranged on the height place corresponding with " L " oil level.In other words, form flat part 532b2, the bottom (being lower than the part of " L " oil level) of the chamber 30a that wins is protruded towards the second Room 30b, provide enough machine oil to hold three-dimensional volume with the bottom of giving the first Room 30a.

Upper clapboard 532c is the tabular component that is used to limit the upper limit of the second Room 30b, and its mode of showing level greatly places the top of flat part 532b2.Upper clapboard 532c is connected to the upper end of side plate 532b, and the upper end of side plate 532b is connected to the inner of flat part 532b2.As the situation among the above-mentioned flange portion 532b1, be fastened to the inside of the flange portion 536a of lower box 536 by screw bolt and nut near the end of the upper clapboard 532c of above-mentioned power train mechanism.

Lateral partitions 532d extends upward from upper clapboard 532c.The space that is formed by lateral partitions 532d and upper clapboard 532c constitutes oil return apotheca 30d, and it uses form the basis second recess of the present invention.Form oil return apotheca 30d, the oil return of partly flowing back to from cylinder block 20a by gravity with temporary transient storage near above-mentioned power train mechanism (not shown).Upper clapboard 532c is set so that the isolation between oil return apotheca 30d and the 30b top, second Room to be provided.

The end of the upper clapboard 532c of close above-mentioned power train mechanism (near the inward flange part 536a of lower box 536) is provided with oil return through-hole 532f.This oil return through-hole 532f be configured to according to the through hole 332f (referring to Fig. 5) of the 3rd mode of execution and identical according to the oil return through-hole 432f (referring to Fig. 7) of the 4th mode of execution.As shown in Figure 8, oil return through-hole 532f is formed at the extreme higher position of the above-mentioned second Room 30b.

The a part of upper clapboard 532c that is positioned at the oil return apotheca 30d outside (being positioned at the lateral partitions 532d outside) is provided with through hole 532g.Through hole 532g is communicated with the second Room 30b.Form through hole 532g, the oil return that makes oil return spill described oil return apotheca 30d after---it is provided with by upper clapboard 532c---temporary transient reception by oil return apotheca 30d can flow back into the second Room 30b.

The upper clapboard 532c that is arranged in the oil return apotheca 30d partly is provided with the second thermostatic valve device 538, and this second thermostatic valve device 538 runs through upper clapboard 532c.The structure of the second thermostatic valve device 538 is identical with the first thermostatic valve device 533.More specifically, the second thermostatic valve device 538 is configured to: the oil return in temporarily being stored in oil return apotheca 30d reach predetermined high temperature (for example 60 ℃) thus the time open and allow oil return to pour the second Room 30b.

In the present embodiment, the second thermostatic valve device 538 is configured to be later than the first thermostatic valve device 533 and opens.Further, the second thermostatic valve device 538 is positioned at its lowest position of upper clapboard 532c.In other words, upper clapboard 532c is provided with outstanding constant temperature device downwards recess 532c1 is installed.The second thermostatic valve device 538 is arranged to run through the bottom that constant temperature device is installed recess 532c1.

In the present embodiment, oil return through-hole 532f, through hole 532g and the second thermostatic valve device 538 constitute aforesaid foundation second way to cycle oil of the present invention and (second) intercommunicating pore.

Food tray 530 according to present embodiment is configured such that about 50-70% of the opening that is positioned at cylinder block 20a lower end is facing to oil return apotheca 30d and swash plate 536c.In other words, suitably construct the shape (aspect the shape and position of the vpg connection of the first Room opening 30a1 and lateral partitions 532d) of oily base plate divider 532, make the oil return of about 50-70% temporarily receive (the part oil return that is received can be flow through lateral partitions 532d and enter the first Room 30a or the second Room 30b) by oil return apotheca 30d.

In other words, be stored in the size and dimension (especially height) that recirculating oil quantity among the oil return apotheca 30d depends on lateral partitions 532d.Therefore, in the present embodiment, the size and dimension of suitably constructing lateral partitions 532d to be storing an amount of oil return, with at the machine oil that all suitably circulates in engine cylinder-body 20 and food tray 530 under each running state of motor 10.

More specifically, lateral partitions 532d has enough height, make that a large amount of relatively oil returns flows to the second Room 30b when the second thermostatic valve device 538 is opened, allow machine oil circulation (between the first Room 30a and the second Room 30b, circulating) more strong in food tray 530 after warm-up operation stops.

Simultaneously, the height of limit lateral dividing plate 532d is to guarantee that the oil level among (particularly when motor starts) first Room 30a is enough when the cold start-up under low-down temperature.Also the height of limit lateral dividing plate 532d flows back to the first Room 30a to guarantee oil return an amount of during warm-up operation, thereby quickens the process of warm-up operation.

The operation of＜the five mode of execution 〉

When the motor 10 of foundation present embodiment started, bent axle 22 rotated and operation oil pump 42.Then, the machine oil in the first Room 30a is fed to for example member of lubricated target such as piston 21 and bent axle 22 mechanism via oil strainer 41.

When carrying out warm-up operation, provide the first thermostatic valve device 533 of the machine oil communication paths between the first Room 30a and the second Room 30b to close (the machine oil communication paths is closed).Therefore, oil level among the first Room 30a reduces, and is lower than oil level among the second Room 30b until it.

When after startup through during a certain amount of time, oil return flow back into food tray 530 by gravity from lubricated target mechanism.The part oil return directly flows to the first Room 30a via the first Room opening 30a1.Therefore the oil return of directly flowing back to the first Room 30a oil temperature among the first Room 30a that raise has quickened the process of warm-up operation.

The oil return that does not directly flow to the remaining part of the first Room 30a is temporarily received by oil return apotheca 30d.More specifically, this oil return directly or via the swash plate 536c of lower box 536 flows to oil return apotheca 30d from lubricated target mechanism.Arrive at predetermined high temperature (for example about 60 ℃) before in the oil return that flows into oil return apotheca 30d, the second thermostatic valve device 538 is closed.Therefore, in this case, oil return temporarily is stored among the oil return apotheca 30d.

Before the second thermostatic valve device 538 was opened, the oil return that spills oil return apotheca 30d can be flow through lateral partitions 532d and move towards the upper clapboard 532c that is positioned at the oil return apotheca 30d outside.The oil return that spills is flowed back to the first Room 30a or is flowed back to the second Room 30b via through hole 532g via the first Room opening 30a1.Therefore, part oil return even before the second thermostatic valve device 538 is opened, flow back to the second Room 30b.This guaranteed during the warm-up operation and the second thermostatic valve the device 538 second Room 30b and the oil level difference between the first Room 30a that work before opening can be greater than just poor at first Room 30a after the startup and the oil level between the second Room 30b.

When the predetermined valve that reaches the first thermostatic valve device 533 when the machine oil among the first Room 30a was opened temperature, warm-up operation stopped.In other words, provide the first thermostatic valve device 533 of the machine oil communication paths between the first Room 30a and the second Room 30b to open (the machine oil communication paths between the first Room 30a and the second Room 30b is opened).Then, result from the oil strainer 41 negative pressure and based on the machine oil communication paths near the differential pressure action of the oil level difference between the first Room 30a and the second Room 30b first thermostatic valve device 533 being formed on oil strainer 41.Therefore, the machine oil among the second Room 30b flows into the first Room 30a via the machine oil communication paths that is formed in the first thermostatic valve device 533.

When the oil return in being stored in oil return apotheca 30d reached predetermined high temperature, the second thermostatic valve device 538 was opened.Then, a large amount of relatively oil return that is stored among the oil return apotheca 30d is poured the second Room 30b via the second thermostatic valve device 538.This causes machine oil to be fed to the top of the second Room 30b in the position relative with the first thermostatic valve device 533, makes that the oil level among the second Room 30b temporarily raises.When machine oil is fed to the top of the second Room 30b (the instantaneous rising of oil level among the second Room 30b), the oil level difference between the second Room 30b and the first Room 30a---aspirate machine oil by oil strainer 41 from this first Room 30a---constantly increases.In other words, near the first thermostatic valve device 533, hydraulic difference occurs, make machine oil flow to the first Room 30a from the second Room 30b.

Then, the machine oil among the second Room 30b flows into the first Room 30a strong via the machine oil communication paths that is formed in the first thermostatic valve device 533.Thereby, all machine oil more effectively circulations in food tray 530.

In the food tray 530 of foundation present embodiment, constitute and to be provided with to such an extent that be higher than the first thermostatic valve device 533 according to oil return through-hole 532f, the through hole 532g of second way to cycle oil of the present invention and the second thermostatic valve device 538.This makes it possible to guarantee that in the warm-up operation process oil level in the second Room 30b is higher than the oil level in the first Room 30a.Therefore, can when finishing, warm-up operation increase pressure reduction between the first Room 30a and the second Room 30b.

In the food tray 530 of foundation present embodiment, the first thermostatic valve device 533 is positioned at the bottom of the first Room 30a and is arranged to relative with second way to cycle oil.Therefore, the machine oil among the second Room 30b flows to the first Room 30a by the first thermostatic valve device 533, and the described first thermostatic valve device 533 is arranged on away from following position: in this position, the oil level of second Room is owing to the backflow of oil return raises.Therefore, guarantee to circulate more strong according to the structure of present embodiment at the machine oil that warm-up operation stops in the food tray 530 of back.

In the food tray 530 of foundation present embodiment, as the situation in third and fourth mode of execution, even when the oil level among the first Room 30a is very low---this is easy to just to have started the back at for example motor under low-down temperature and takes place, and float-controlled valve 537 also allows by oil drainage hole 532e the machine oil among the second Room 30b to be fed to the first Room 30a.Float-controlled valve 537 guarantees that also oil drainage hole 532e suitably blocks in the warm-up operation process.Further, in the time all machine oil need being discharged food tray 330 in order to change oil, float-controlled valve 537 is opened the relatively large oil drainage hole 532e of diameter, makes all machine oil can discharge the first Room 30a at once.

In the food tray 530 of foundation present embodiment, oil return through-hole 532f can support oil level indicator 50 and allow and realize changing oil as third and fourth mode of execution.

When fresh machine oil was directed to food tray 530 according to present embodiment, the air among the second Room 30b was upwards driven by oil return through-hole 532f.In other words, oil return through-hole 532f is used as vent hole air is displaced the second Room 30b.In the present embodiment, oil return through-hole 532f is formed on the extreme higher position of the second above-mentioned Room 30b.Therefore, when fresh machine oil imported food tray 530, air was suitably displaced the top of the second Room 30b.Therefore, the machine oil of specified quantitative can suitably be imported in the food tray 530.

＜the six mode of execution 〉

Fig. 9 is a viewgraph of cross-section, illustrates according to structure sixth embodiment of the invention, that be included in the food tray 330 in the motor 10 shown in Figure 1.The structure of the 6th mode of execution is identical in fact with the 5th mode of execution.All be endowed and the identical label (minimum two digits is identical) of food tray 530 (see figure 8)s according to nearly all element of the food tray 630 of present embodiment according to the 5th mode of execution.Therefore, the description of the 5th mode of execution can be used for each element according to the food tray 630 of present embodiment.

Yet, according to the motor 10 of present embodiment with respect to predetermined angle of inclination of vehicle shown in Figure 9.Therefore, when vehicle placed on the level ground, motor 10 became a predetermined angle setting with respect to substantially horizontal.

Food tray 630 according to present embodiment so forms: when food tray 630 is installed on the vehicle, and flat part 632b2 and the horizontal direction parallel of the side plate 632b of food tray divider 632.

In the food tray 630 of foundation present embodiment, be formed with an air guide portion 632c2 in the highest position of above-mentioned upper clapboard 632c.Air guide portion 632c2 from the end of oil return through-hole 632f towards near an end of above-mentioned power train mechanism (not shown) thickening (being wedge shape) gradually.The upside of air guide portion 632c2 is inclined upwardly to the end towards oil return through-hole 632f from the end near power train mechanism.

---its as in the 5th mode of execution as vent hole---is positioned at and corresponding position, the extreme higher position of the second Room 30b because fill with air guide portion 632c2 the upper end of the second Room 30b, to be configured such that oil return through-hole 632f according to the food tray 630 of present embodiment.

When adopting above-mentioned structure, the air in the 30b top, second Room is by upper clapboard 632c downside---it has comprised the downside of air guide portion 632c2---, and guiding makes progress.Thereby air is suitably discharged from the top of the second Room 30b by oil return through-hole 632f.Therefore, when needs more (when needing to introduce fresh machine oil) during change engine oil, can prevent that air from remaining in the top of the second Room 30b and block machine oil---amount of the machine oil that is obstructed equal'ss to remain in the amount of the air in the 30b top, second Room---introducing.

The structure of the food tray of＜＜foundation the 7th mode of execution〉〉

Figure 10 is a viewgraph of cross-section, illustrates according to structure seventh embodiment of the invention, that be included in the food tray 730 in the motor 10 shown in Figure 1.

Food tray 730 according to present embodiment comprises: food tray cover 731, this food tray cover arrangement become identical with the food tray cover 531 (referring to Fig. 8) of foundation the 5th mode of execution.More specifically, base plate 731a, side plate 731b, flange portion 731d and the oil extraction bolt hole 731e of formation food tray cover 731 are configured to identical with base plate 531a, the side plate 531b, flange portion 531d and the oil extraction bolt hole 531e (referring to Fig. 8) that describe in conjunction with the 5th mode of execution.Thereby, and according to the identical base plate 731a of the structure of the counterpart of the 5th mode of execution with other member is endowed and according to the label of the food tray 530 (referring to Fig. 8) identical (minimum two digits is identical) of the 5th mode of execution.Therefore, the description of the 5th mode of execution can be used for each element according to the food tray 630 of present embodiment.

Thermostatic valve device 733 according to present embodiment is configured to identical with the first thermostatic valve device 533 (referring to Fig. 8) of foundation the 5th mode of execution.

Be configured to identically according to the oil extraction bolt 734 of present embodiment, and can remove from the oil extraction bolt hole 731e that is arranged in food tray cover 731 with oil extraction bolt 534 (referring to Fig. 8) according to the 5th mode of execution.

Lower box 736 according to present embodiment is configured to identical with the lower box 536 (referring to Fig. 8) of foundation the 5th mode of execution.More specifically, flange portion 736a, the swash plate 736c of formation lower box 736 and flange portion 736d are configured to identical with flange portion 536a, the swash plate 536c and the flange portion 536d (referring to Fig. 8) that describe in conjunction with the 5th mode of execution.

Be configured to identically according to the float-controlled valve 737 of present embodiment, and comprise float 737a, connecting rod 737b and valve disc 737c with the float-controlled valve 537 (referring to Fig. 8) of above-mentioned foundation the 5th mode of execution.

The structure of＜＜food tray divider〉〉

Food tray divider 732 according to present embodiment comprises base plate 732a, side plate 732b, upper clapboard 732c and lateral partitions 732d.It is by the synthetic resin manufacturing with low heat conductivity.

Structure according to the food tray divider 732 of present embodiment is identical in fact with the food tray divider 532 (referring to Fig. 8) of above-mentioned foundation the 5th mode of execution.More specifically, the first Room 30a space (first recess or first Room form recess) of roughly being sealed by base plate 732a and side plate 732b forms.The second Room 30b is formed by the space of below that is positioned at the first Room 30a and side.The upper end of side plate 732b is positioned at the height place with " F " oil level correspondence.Form by the first Room opening 30a1 according to first way to cycle oil of the present invention in the upper end open of side plate 732b.Flat part 732b2 is formed at the middle part near the side plate 732b of above-mentioned power train mechanism (not shown).In other words, flat part 732b2 is formed at the right hand portion of Figure 10 latus inframedium 732b.Flat part 732b2 extend internally (towards the first Room 30a).Upper clapboard 732c is provided with lateral partitions 732d, oil return through-hole 732f and through hole 732g.The size of lateral partitions 732d suitably structure as discussed previously.

In the present embodiment, thermostatic valve device 733 is arranged to the part (right hand portion among Figure 10) towards the close above-mentioned power train mechanism of food tray divider 732 side plate 732b.In other words, be arranged to relative according to the thermostatic valve device 733 of present embodiment according to the thermostatic valve device of former mode of execution.

Food tray divider 732 according to present embodiment is provided with oil return reflux valve device 738.Oil return reflux valve device 738 can be fed to the top of the second Room 30b will be stored in oil return in the oil return apotheca 30d with thermostatic valve device 733 compounding practices.

The structure of＜＜oil return reflux valve device〉〉

Figure 11 is an enlarged cross-sectional view, and oil return reflux valve device 738 shown in Figure 10 is shown.For convenience's sake, simplified the view shown in Figure 11.

Oil return reflux valve device 738 comprises valve disc 738a, valve disc supporting member 738b, wind spring 738c, line 738d and pulley 738e.

Valve disc 738a is a below that is roughly flat member and is arranged on upper clapboard 732c.Upper clapboard 732c is provided with intercommunicating pore 732c2, and described intercommunicating pore 732c2 provides the connection between the second Room 30b and the oil return apotheca 30d.Valve disc 738a is arranged on the below of intercommunicating pore 732c2 and can blocks to live in intercommunicating pore 732c2 from the below.

Valve disc supporting member 738b is arranged on the top of valve disc 738a.Be arranged on intercommunicating pore 732c2 among the upper clapboard 732c between valve disc 738a and valve disc supporting member 738b.Valve disc supporting member 738b is made by the rod component that is inverted U-shaped (being similar to the shape of inverted letter " U ").When the lower end of valve disc supporting member 738b (opening in inverted U-shaped) contacted with the upper surface of upper clapboard 732c, valve disc supporting member 738b was by the upper support of upper clapboard 732c.

The upper end of wind spring 738c is hook-shaped or otherwise is fastened to the upper end of valve disc supporting member 738b.The lower end of wind spring 738c contacts with the upper surface of valve disc 738a.Shown in Figure 11 (A), the length of wind spring 738c under nature makes valve disc 738a quilt draw consistently, the upper surface of valve disc 738a contacts with the lower surface of upper clapboard 732c simultaneously.In other words, the wind spring 738c shown in Figure 11 (A) extends to a length slightly longer than natural length.Valve disc 738a, valve disc supporting member 738b are configured such that when the upper surface of valve disc 738a contacts with the lower surface of upper clapboard 732c that with wind spring 738c the upper surface of valve disc 738a blocks the intercommunicating pore 732c2 that firmly is arranged among the upper clapboard 732c.

Line 738d is connected valve disc 738a lower surface and between the valve body 733b of the thermostatic valve device 733 below the valve disc 738a.In other words, the upper end of line 738d contacts with the lower surface of valve disc 738a, and the lower end of line 738d contacts with the valve body 733b surface of the thermostatic valve device 733 that is exposed to the second Room 30b.The cover 733g towards second Room that constitutes thermostatic valve device 733 housings supports pulley 738e, makes pulley 738e freely rotate.Pulley 738e is the member that is used for the motion of guide wire 738d, and is arranged to apply suitable tension force to line 738d.

Shown in Figure 11 (A), oil return reflux valve device 738 is configured such that: when thermostatic valve device 733 was closed, valve disc 738a blocked to live in intercommunicating pore 732c2.Further, shown in Figure 11 (B), oil return reflux valve device 738 is configured such that: when thermostatic valve device 733 was opened, the valve body 733b of thermostatic valve device 733 moved, thereby allowed valve disc 738a to move downward and open intercommunicating pore 732c2 by line 738d.

The operation of＜the seven mode of execution 〉

Describe according to performed operation of the structure of present embodiment and the advantage that is provided referring now to Figure 10 and 11.

When carrying out warm-up operation, the oily temperature among the first Room 30a is lower than the valve of thermostatic valve device 733 and opens temperature.Therefore, provide the thermostatic valve device 733 of the machine oil communication paths between the first Room 30a and the second Room 30b to close (the machine oil communication paths is closed).

Under said circumstances, the valve disc 738a in the oil return reflux valve device 738 is by drawing on the wind spring 738c, and is indicated as Figure 11 (A), thereby blocks to live in the through hole 732g among the dividing plate 732c, and this upper clapboard 732c constitutes the base plate of oil return apotheca 30d.

When the predetermined valve that rises to thermostatic valve device 733 when the oily temperature among the first Room 30a is opened temperature, shown in Figure 11 (B), be filled in the valve body 733b of thermostatic valve device 733 wax 733a thermal expansion and towards the right side of Figure 11 catch bar 733c.Valve body 733b is subjected to reaction then and is pushed to left side shown in Figure 11.When valve body 733b shifts to left side shown in Figure 11, provide the thermostatic valve device 733 of the machine oil communication paths between the first Room 30a and the second Room 30b to open (the machine oil communication paths between the first Room 30a and the second Room 30b is opened).

In said circumstances, the valve disc 738a of oil return reflux valve device 738 is drop-down by line 738d owing to the motion of the valve body 733b of thermostatic valve device 733, shown in Figure 11 (B).Valve disc 738a overcomes wind spring 738c applied force then and moves down and open the through hole 732g that is arranged in upper clapboard 732c, and described upper clapboard 732c forms the base plate of oil return apotheca 30d.

As mentioned above, when the structure that adopts according to present embodiment, constitute the opening of thermostatic valve device 733 of the machine oil communication paths between the first Room 30a and the second Room 30b and the opening and the opening degree of opening degree and oil return reflux valve device 738 and mechanically link, second way to cycle oil that described oil return reflux valve device 738 constitutes between the oil return apotheca 30d and the second Room 30b.Therefore, after warm-up operation finishes, cause oil circulation in the food tray 730 more definitely according to the structure of present embodiment.

The example of＜improvement mode of execution 〉

As discussed previously, when application was of the present invention, the applicant thought that former mode of execution is best.In all its bearings, they all are regarded as merely exemplary rather than restrictive.The present invention is not limited to former mode of execution, but expands to the various improvement that still drop within the claims scope.

Though owing to the reason that has first-to-file principle has additionally been described some improved mode of executions, these improved mode of executions also only will be understood that and are exemplary and not restrictive hereinafter.Do not allow carrying out restrictive explanation with the description of above-mentioned mode of execution and the present invention who is described as the basis subsequently of improvement mode of execution; because this has damaged inadequately because of the first-to-file principle claimant's of submit applications interests hastily; make the imitator obtain illegitimate benefits, and with for invention and use and to provide the Patent Law of protection to disagree.

Hereinafter described improvement mode of execution can suitably make up, only otherwise cause technical contradiction.

(i) foundation oil pan structure of the present invention not only can be applied to the motor according to above-mentioned mode of execution, can also be applied to automatic transmission and various other device of being equipped with based on the lubricating fitting of food tray.

(ii) according to the solenoid valve 133 of first mode of execution and according to second or subsequently the thermostatic valve device of mode of execution (for example thermostatic valve device 233 or 333) can exchange each other.Further, can use and to control the hydraulically operated control valve unit of opening and opening degree, pneumatically-operated control valve unit or other similar device according to hydrodynamic pressure and replace solenoid valve or thermostatic valve device.

The oil circulation performance can suitably be regulated by the height that changes intercommunicating pore (for example intercommunicating pore 132f or 235f hereinafter are called intercommunicating pore) in (iii) pre-thermal characteristics and the food tray after warm-up operation.For example, intercommunicating pore is provided with to such an extent that be higher than " F " oil level, can in the warm-up operation process, in the second Room 30b, store more substantial oil return, the pressure reduction when increasing the warm-up operation end between the first Room 30a and the second Room 30b, and the machine oil that in food tray, circulates more strong.

On the other hand, when intercommunicating pore was provided with to such an extent that be lower than " F " oil level, the recirculating oil quantity that is stored in the warm-up operation process in the second Room 30b was restricted (that is the recirculating oil quantity that, flows to the first Room 30a increases).Thereby, can reduce the needed time of warm-up operation.When intercommunicating pore roughly be provided with " F " when oil level flushes, the oil circulation performance balances each other in pre-thermal characteristics and the food tray after warm-up operation.

(iv) can omit according to the swash plate 132c of the food tray divider 132 of first mode of execution with the overlapping part of the swash plate 131c of food tray cover 131.In this case, preferably, the coating of synthetic resin, coating etc. puts on the swash plate 131c of food tray cover 131, and so that heat insulation between oil return and the food tray cover 131 to be provided, described food tray cover 131 is the sheet metals that are exposed to outside air.

(v) the intercommunicating pore 132f according to first mode of execution can place on the swash plate 132c of food tray divider 132.

(vi) in second mode of execution, food tray divider 232 can be integrally formed with oil return guide member 235.Further, can from second mode of execution, remove base plate 232a and outer wall 232h.In this case, inwall 232b can be integrally formed with oil return guide member 235.Further, the oil return guide member 235 of foundation second mode of execution can be divided into two parts, and parts are provided with towards baffle plate 235j, and another parts are provided with towards intercommunicating pore 235f.

(vii) in the 3rd mode of execution, food tray cover 331 can be integrally formed with lower box 336.This for the 4th and the mode of execution of back also be the same.

(viii) in the 3rd mode of execution, can eliminate the upper clapboard 332c and the height difference between the flange portion 332b1 (referring to Fig. 5) that oil return apotheca 30d is provided with of the base plate that constitutes oil return apotheca 30d.In other words, food tray divider 332 can so be constructed: the upper clapboard 332c that constitutes the base plate of oil return apotheca 30d can flush with the flange portion 332b1 that is provided with towards oil return apotheca 30d.

(ix) lateral partitions 332d can be positioned at the arbitrary height place between " F " oil level and " L " oil level.Further, lateral partitions 332d can slot or perforate with suitably be adjusted in the recirculating oil quantity that flows to the first Room 30a in the warm-up operation process (this for the 5th and the mode of execution of back also be the same).

(x) that part that the isolation between the second Room 30b and the oil return apotheca 30d is provided of upper clapboard 332c can be provided with the other small diameter bore except that through hole 332f, and oil level indicator 50 was inserted this through hole 332f.Described small diameter bore is not easy to allow low temperature, the full-bodied machine oil in the warm-up operation process pass through, but is easy to allow temperature higher relatively (for example about 60 ℃) to opening machine oil temperature, low viscous near the valve of thermostatic valve device 333 by a hole (described small diameter bore is that diameter is roughly 3 to 7 millimeters circular hole or has ellipse or the polygonal hole that is equal to opening area).

(xi) the oil level indicator supporting element 432c according to the 4th mode of execution can tilt.Further, oil level indicator supporting element 432c can be provided with above-mentioned small diameter bore.Oil return through-hole 432f can be positioned at the arbitrary height place between " F " oil level and " L " oil level.

(xii) structure of the upper clapboard 532c of foundation the 5th mode of execution can suitably change.For example, the position of upper clapboard 532c can be a little less than the upper end of food tray cover 531.Further, upper clapboard 532c can be by the member manufacturing that is independent of food tray divider 532.In this case, upper clapboard 532c can be screwed to, adhere to, join to or otherwise be fastened to food tray cover 531 and/or food tray divider 532.Alternatively, upper clapboard 532c can be integrally formed with food tray cover 531.

(xiii) can from the foundation food tray divider 532 of the 5th mode of execution, omit flat part 532b2 and through hole 532g.

(xiv) in the 5th mode of execution, the first thermostatic valve device 533 and the second thermostatic valve device 538 can be opened in fact simultaneously or in them any can be opened prior to another.For example, if the second thermostatic valve device 538 is opened prior to the first thermostatic valve device 533, then the pressure reduction between (when warm-up operation stops) the first Room 30a and the second Room 30b can maximize when the first thermostatic valve device 533 is opened.This has guaranteed that the machine oil among the second Room 30b can flow into the first Room 30a strong when warm-up operation finishes.If the first thermostatic valve device 533 and the second thermostatic valve device 538 are opened in fact simultaneously, then the operation that is caused is with described identical in conjunction with the 5th mode of execution.

(xv) in the 7th mode of execution, constitute the thermostatic valve device 733 of the machine oil communication paths between the first Room 30a and the second Room 30b and the oil return reflux valve device 738 of second way to cycle oil between the formation oil return apotheca 30d and the second Room 30b and can pass through to change length, material or the structure of line 738d and suitably adjusting.

(xvi) in the 7th mode of execution, can use and to replace thermostatic valve device 733 and oil return reflux valve device 738 by solenoid valve, hydraulic control valve, pneumatic operation valve or other the similar control valve unit that external means (for example engine control computer) controls its opening and opening degree.This makes interlock easily between the opening of the opening of the machine oil communication paths between the chamber 30a and the second Room 30b of winning and second way to cycle oil between opening degree and the oil return apotheca 30d and the second Room 30b and the opening degree.Further, the opening of above-mentioned path and opening degree can easily as need to regulate.

(xvii) swash plate 131c, 231c can economize from first and second mode of executions and omit.

In the 3rd to the 7th mode of execution, the recessed sidewall that constitutes the first Room 30a can be integrally formed with lower box 336,436,536,636,736.In other words, the downside that referring to Fig. 5, food tray 330 can be installed in a bathtub shape member by the bathtub shape member that will comprise base plate 331a and side plate 331b---this bathtub shape member by with side plate 336b, swash plate 336c, side plate 332b and base plate 332a is integrated forms---forms.

(xviii) self-evidently, other each improved mode of execution also falls within the scope of the present invention, unless they have departed from spirit of the present invention.For example, in aforesaid mode of execution, the element of integrated single-piece can be integrally formed each other and not be used the connecting part, perhaps by bonding, deposit, tighten or otherwise a plurality of independent sectors are combined and form.

(xix) functional element of formation " device of dealing with problems " not only comprises in conjunction with aforementioned embodiments and improves the described specified structure of mode of execution, also comprises the structure that other can realize described function.

Claims (35)

1. lubricating fitting, it can be fed to described lubricated target mechanism to the machine oil that lubricated target mechanism is lubricated with being used for, and described lubricating fitting comprises:

Food tray, it comprises the food tray cover that described machine oil can be stored in the inner space and is arranged in the described inner space described inner space is separated into the food tray divider of first Room and second Room adjacent one another are;

Oil pump, its machine oil that is used for being stored in described food tray are fed to described lubricated target mechanism;

Oil strainer, its interior bottom that is arranged on described first Room is to constitute the machine oil inhalation port of described oil pump;

The machine oil communication paths, it is arranged in the described food tray divider the mutual exchange that changes the machine oil between described first Room and described second Room with the runnability according to described lubricated target mechanism;

First way to cycle oil, it can guide to described first Room with the oil return of flowing back to described food tray from described lubricated target mechanism; And

Second way to cycle oil, it can guide to described oil return described second Room.

2. lubricating fitting as claimed in claim 1,

Wherein said food tray divider has towards described lubricated target mechanism opening to constitute first recess of described first Room;

The space that wherein said second Room is sealed by the outer surface of described first recess in described food tray cover and the described food tray divider forms and is arranged on the outside of described first Room; And

Wherein said first way to cycle oil is arranged so that described lubricated target mechanism is communicated with described first recess.

3. lubricating fitting as claimed in claim 1 or 2 further comprises:

The oil return guide portion, it comprise towards and be communicated with described lubricated target mechanism and towards second recess of described lubricated target mechanism opening;

The bottom of wherein said oil return guide portion is provided with second intercommunicating pore that is used for first intercommunicating pore that is communicated with described first Room and is used for being communicated with described second Room;

Wherein said first way to cycle oil is formed by described first intercommunicating pore; And

Wherein said second way to cycle oil is formed by described second intercommunicating pore.

4. lubricating fitting as claimed in claim 3, wherein said oil return guide portion and described food tray divider are integrally formed.

5. as claim 3 or 4 described lubricating fittings, wherein said machine oil communication paths is arranged to be lower than described oil return guide portion.

6. lubricating fitting as claimed in claim 1 or 2, wherein said second way to cycle oil comprise and are arranged on the oil return through-hole that in the described food tray divider so that described first Room is communicated with the top of described second Room.

7. lubricating fitting as claimed in claim 6, wherein said oil return through-hole are formed on the corresponding position, summit with described second Room of working when described lubricated target mechanism moves.

8. as claim 6 or 7 described lubricating fittings, wherein said oil return through-hole forms the insertion of the oil level indicator that acceptance forms by rod component to allow checking the described first indoor oil level by vision.

9. lubricating fitting as claimed in claim 1 or 2 further comprises:

The oil return reservoir, it comprise towards and be communicated with described lubricated target mechanism and towards second recess of described lubricated target mechanism opening, and can store described oil return;

The bottom of wherein said oil return reservoir is provided with and is used for the intercommunicating pore that is communicated with described second Room; And

Wherein said second way to cycle oil is formed by described intercommunicating pore.

10. lubricating fitting as claimed in claim 9 further comprises:

Lateral partitions, it constitutes the sidewall of described oil return reservoir.

11. as claim 9 or 10 described lubricating fittings, wherein said oil return reservoir and described food tray divider are integrally formed.

12. as each described lubricating fitting in the claim 9 to 11, wherein said machine oil communication paths is arranged to be lower than described oil return reservoir.

13. as each described lubricating fitting in the claim 9 to 12, wherein said intercommunicating pore is formed on the corresponding position, summit with described second Room of working when described lubricated target mechanism moves.

14. as each described lubricating fitting in the claim 9 to 13, wherein said intercommunicating pore forms the insertion of the oil level indicator that acceptance forms by rod component to allow checking the described first indoor oil level by vision.

15. as each described lubricating fitting in the claim 1 to 14, wherein said machine oil communication paths is provided with first valve that can come opening/closing according to the oily temperature in described first Room.

16. as each described lubricating fitting in the claim 1 to 15, wherein said second way to cycle oil is provided with second valve that can come opening/closing according to the temperature of described oil return.

17. lubricating fitting as claimed in claim 16 further comprises:

The opening linkage portion, it is used to guarantee that the opening of described first valve and the opening of described second valve link each other.

18. lubricating fitting as claimed in claim 17, wherein said opening linkage portion is formed by line components, and described line components is installed as the bridge member between described first valve and described second valve.

19. as each described lubricating fitting in the claim 1 to 18, wherein said machine oil communication paths is arranged to be lower than the described first indoor described oil level that works when the operation of described lubricated target mechanism.

20. a lubricating fitting, it can be fed to described lubricated target mechanism to the machine oil that lubricated target mechanism is lubricated with being used for, and described lubricating fitting comprises:

Food tray, it comprises the food tray cover that described machine oil can be stored in the inner space and is arranged in the described inner space described inner space is separated into the food tray divider of first Room and second Room adjacent one another are;

Oil pump, its machine oil that is used for being stored in described food tray are fed to described lubricated target mechanism;

Oil strainer, its interior bottom that is arranged on described first Room is to constitute the machine oil inhalation port of described oil pump;

The machine oil communication paths, it is arranged in the described food tray divider the mutual exchange that changes the machine oil between described first Room and described second Room with the runnability according to described lubricated target mechanism; And

Way to cycle oil, it can guide to described second Room with the oil return of flowing back to described food tray from described lubricated target mechanism.

21. comprising, lubricating fitting as claimed in claim 20, wherein said way to cycle oil be arranged on the oil return through-hole that in the described food tray divider so that described first Room is communicated with the top of described second Room.

22. lubricating fitting as claimed in claim 21, wherein said oil return through-hole are formed on the corresponding position, summit with described second Room of working when described lubricated target mechanism moves.

23. as claim 21 or 22 described lubricating fittings, wherein said oil return through-hole forms the insertion of the oil level indicator that acceptance forms by rod component to allow checking the described first indoor oil level by vision.

24. lubricating fitting as claimed in claim 20 further comprises:

The oil return reservoir, it comprise towards and be communicated with described lubricated target mechanism and store recess towards the oil return of described lubricated target mechanism opening, and can store described oil return;

The bottom of wherein said oil return reservoir is provided with and is used for the intercommunicating pore that is communicated with described second Room; And

Wherein said way to cycle oil is formed by described intercommunicating pore.

25. lubricating fitting as claimed in claim 24 further comprises:

Lateral partitions, it constitutes the sidewall of described oil return reservoir.

26. as claim 24 or 25 described lubricating fittings, wherein said oil return reservoir and described food tray divider are integrally formed.

27. as each described lubricating fitting in the claim 24 to 26, wherein said machine oil communication paths is arranged to be lower than described oil return reservoir.

28. as each described lubricating fitting in the claim 24 to 27, wherein said intercommunicating pore is formed on the corresponding position, summit with described second Room of working when described lubricated target mechanism moves.

29. as each described lubricating fitting in the claim 24 to 28, wherein said intercommunicating pore forms the insertion of the oil level indicator that acceptance forms by rod component to allow checking the described first indoor oil level by vision.

30. as each described lubricating fitting in the claim 20 to 29, wherein said machine oil communication paths is arranged to be lower than described way to cycle oil.

31. as each described lubricating fitting in the claim 20 to 30,

Wherein said food tray divider has towards described lubricated target mechanism opening and forms recess with first Room that constitutes described first Room; And

Wherein said second Room forms the outside that space that the outer surface of recess seals formed and be arranged on described first Room by described first Room in described food tray cover and the described food tray divider.

32. as each described lubricating fitting in the claim 20 to 31, wherein said machine oil communication paths is provided with first valve that can come opening/closing according to the oily temperature in described first Room.

33. lubricating fitting as claimed in claim 32, wherein said way to cycle oil are provided with second valve that can come opening/closing according to the temperature of described oil return.

34. lubricating fitting as claimed in claim 33 further comprises:

The opening linkage portion, it is used to guarantee that the opening of described first valve and the opening of described second valve link each other.

35. lubricating fitting as claimed in claim 34, wherein said opening linkage portion is formed by line components, and described line components is installed as the bridge member between described first valve and described second valve.

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