CN102207013B

CN102207013B - Oil filtering device and oil sump

Info

Publication number: CN102207013B
Application number: CN201110075804.4A
Authority: CN
Inventors: 榎田智志
Original assignee: DaikyoNishikawa Corp
Current assignee: DaikyoNishikawa Corp
Priority date: 2010-03-29
Filing date: 2011-03-28
Publication date: 2015-07-08
Anticipated expiration: 2031-03-28
Also published as: CN102207013A; JP2011208543A

Abstract

The invention discloses an oil filtering device and an oil sump, wherein the oil filtering device 20 comprises a receiving portion 21 for receiving oil returning from underneath after internal circulation in a power device, an oil flowing pipe portion 22 where oil received by the receiving portion 21 is introduced, a filter 23 arranged in the oil flowing pipe portion 22 for filtering oil running through the oil flowing pipe portion 22, and an oil suction pipe 60 for introducing oil into the oil flowing pipe portion 22, the oil suction pipe 60 being arranged on the upstream side upper than the filter 23 of the oil flowing pipe portion 22 at a location lower than oil surface in the oil sump body. Since the downstream of the oil flowing pipe portion 22 is connected with the oil suction portion of the power device, heating of oil supplied to the power device during cold start of the power device can be accelerated to shorten the time for warming up a machine and to further save energy.

Description

Oil filter and oil sump

Technical field

The present invention relates to a kind of oily filter and the oil sump comprising this oily filter, this oily filter is arranged on and is configured to allow oil carry out in the power plant circulated.

Background technique

Up to now, such as engine for automobile equal power device be configured to oil circulate in the inside of these power plant.Oil measure existence is arranged in the oil sump of motor bottom.The oil be stored in oil sump is sucked up due to the work of oil pump, then is filtered by oily filter, then feeds to the various piece (for example, referring to patent documentation 1) of motor.

Oil sump in patent documentation 1 comprises: the oil sump main body in concave shape and be configured in the crankcase-sump baffle of inside of oil sump main body.Crankcase-sump baffle is used to the parts inner space of oil sump main body being divided into the first Room and the second Room, and oily filter is configured in this first indoor, and this second Room surrounds the first Room.The oil (oil return) turned back to after motor Inner eycle in oil sump flows into the first indoor.

When as during cold starting, oil temperature is lower, the oil of the first indoor feeds to the various piece of motor after being filtered by oily filter.The oil that circulation heats up turns back to the first indoor, and this oil heated up is inhaled to oily filter again, then feeds to the various piece of motor.Therefore, the warming-up speed of motor can be accelerated compared with the oil sump not having crankcase-sump baffle.

Patent documentation 1: Japanese Laid-Open Patent Publication JP 2006-189002 publication

Summary of the invention

-technical problem that invention will solve-

But according to the oil sump in patent documentation 1, oil return is inhaled to oily filter after being temporarily stored in these first indoor in inflow first indoor and is filtered, then feeds to the various piece of motor.The internal capacity of the volume ratio oil filter of the first Room is large, and the oil return having flowed into the first indoor is lowered the temperature by mixing with the low-temperature oil being stored in the first indoor.And the oil having flowed into the first indoor is not all inhale immediately to oily filter, but only a part of oil is inhaled to this oily filter immediately, and therefore remaining oil return will cool in suction and lower the temperature before oily filter.

That is, the light viscosity oil heated up can be fed to motor by oil sump hardly in patent documentation 1 immediately, and the shortening of warm-up period is insufficient, not enough to some extent from the angle of energy-saving.

The present invention is just in view of the premises completes.Its object is to: the warming velocity accelerating to feed to when the cold starting of power plant the oil of power plant, seek the shortening of warm-up period, thus realize carrying out energy-saving further.

-in order to technical solution problem technological scheme-

For reaching described object, in the present invention, making this oil return flow to the oily flow through tube of oily filter with holding after oily portion receives oil return like this, filtering with filter cleaner in this oily flow through tube, then the oil filtered being fed to power plant.

The invention of first aspect relates to a kind of invention of oily filter, this oily filter is configured in the oil sump main body of storing at the oil of power plant Inner eycle, the oil be configured to being stored in this oil sump main body filters, and the oil filtered is fed to described power plant, it is characterized in that: described oily filter comprises and holds oily portion, oil flow through tube and filter cleaner, this holds the oil return returning after oily portion is used for being undertaken on described power plant Inner eycle from below, import in this oily flow through tube with the described oil accepted in oily portion that holds, this filter cleaner is configured in the inside of described oily flow through tube, be used for filtering the oil flowing through this oily flow through tube, described in the ratio of described oily flow through tube, filter cleaner is also near the upstream side of upstream, on the position of below, is also provided with the oil suction portion for making this oily flow through tube suck oil at the pasta than the oil be stored in described oil sump main body, the oil suction part that downstream portion and the described power plant of described oily flow through tube have is connected.

According to described structure, accepting oil return with holding oily portion, flowing through oily flow through tube with holding the oil return accepted in oily portion and being filtered by filter cleaner, then feeding to power plant.Therefore, when cold starting, be stored in the low-temperature oil in oil sump main body and not easily mixed in the oil return that power plant Inner eycle heats up.Consequently, the oil return of cooling is suppressed directly to feed to power plant by oily flow through tube.Thereby, it is possible to the light viscosity oil heated up is fed to power plant immediately, the warm-up period of power plant is shortened.

Should illustrate, when the oil temperature of oil sump main body is lower, because oil viscosity is higher, so the oil mass sucked from the oil suction portion of oily flow through tube is less.On the other hand, when the oil temperature of oil sump main body is higher, oil viscosity is lower, and the oil mass sucked from the oil suction portion of oily flow through tube compared with during low temperature is more.

The invention of second aspect, is in the invention of first aspect, is characterised in that: the opening portion that the sectional area that described oil suction portion has the upstream side of oily flow through tube described in area ratio is little.

According to described structure, when the oil mass required by power plant is more, because the negative pressure in oily flow through tube increases, so the oil be stored in oil sump main body is drawn in oily flow through tube from oil suction portion, and feed to power plant.Therefore, not easily there is the insufficient lubrication of power plant.

On the other hand, when the oil mass required by power plant is less, the negative pressure in oily flow through tube is less.Now,, viscosity lower in the temperature being stored in the oil in oil sump main body is higher, because the sectional area of the area ratio oil flow through tube of the opening portion in oil suction portion is little, so the oil be stored in oil sump main body is not easily drawn in oily flow through tube, the warm-up period of power plant can be shortened.

The invention of the third aspect, is in the invention of first aspect, is characterised in that: described oily flow through tube combination first component and second component and form; Described oil suction portion is formed in the gap between described first component and described second component; Described in the area ratio in described gap, the sectional area of the upstream side of oily flow through tube is little.

According to described structure, when the oil mass required by power plant is more, the oil be stored in oil sump main body is drawn in oily flow through tube from the gap between first component and second component, and feeds to power plant.Therefore, not easily there is insufficient lubrication.

On the other hand, when the oil mass required by power plant is less, because the sectional area of the area ratio oil flow through tube in the gap between first component and second component is little, so, viscosity lower in the temperature being stored in the oil in oil sump main body is higher, low-temperature oil is not easily drawn in oily flow through tube, can shorten the warm-up period of power plant.

The invention of fourth aspect, in the first invention to the either side in the third aspect, be characterised in that: hold oily portion be formed with the first interconnecting part and the second interconnecting part described, this first interconnecting part is communicated with the upstream extremity of described oily flow through tube, this second interconnecting part runs through this and holds oily portion, and with hold oily portion described in the ratio in described oil sump main body and be also communicated with near the space of below, and hold oily portion and be provided with described the switching mechanism opening, close at least described second interconnecting part; Described switching mechanism is configured to open described second interconnecting part when oil temperature state is more than set point of temperature.

According to described structure, terminate at the warming-up of power plant, open the second interconnecting part when returning-oil temperature reaches high temperature with switching mechanism, high temperature oil return flows in the lower side space of oil sump main body from holding oily portion thus.In such event, because the low-temperature oil be stored in oil sump main body and described high temperature oil return mix, so the excessive temperature of oil return can be suppressed to rise.

The invention of the 5th aspect, be in the invention of fourth aspect, be characterised in that: described switching mechanism comprises valve member and drive unit, this valve member is opened, close described first interconnecting part and described second interconnecting part, this drive unit drives this valve member; When oil temperature state is lower than set point of temperature, described drive unit makes described valve member carry out opening described first interconnecting part and the work of cutting out described second interconnecting part, on the other hand, when oil temperature state is more than set point of temperature, described drive unit makes described valve member carry out cutting out described first interconnecting part and the work of opening described second interconnecting part.

According to described structure, when oil temperature is lower as during cold starting, opens the first interconnecting part and close the second interconnecting part, thus most of oil return can not flow in the lower side space of oil sump main body, and flows in oily flow through tube.Therefore, warm-up period is shortened.

On the other hand, when oil temperature is higher after terminating as warming-up, closes the first interconnecting part and open the second interconnecting part, thus most of oil return flows in the lower side space of oil sump main body.Therefore, it is possible to suppress the excessive temperature of oil return to rise.

The invention of the 6th aspect, in the invention of fourth aspect, be characterised in that: described switching mechanism comprises the first valve member, the second valve member and drive unit, this first valve member is opened, close described first interconnecting part, this second valve member is opened, close described second interconnecting part, and this drive unit drives described first valve member and described second valve member; When oil temperature state is lower than set point of temperature, described drive unit makes described first valve member carry out opening the work of described first interconnecting part, and make described second valve member carry out closing the work of described second interconnecting part, on the other hand, when oil temperature state is more than set point of temperature, described drive unit makes described first valve member carry out cutting out the work of described first interconnecting part, and makes described second valve member carry out opening the work of described second interconnecting part.

According to described structure, open the first interconnecting part and close the second interconnecting part when oil temperature is lower, therefore most of oil return can not flow in the lower side space of oil sump main body, but flows in oily flow through tube.On the other hand, close the first interconnecting part and open the second interconnecting part when oil temperature is higher, therefore most of high temperature oil return flows in the lower side space of oil sump main body.

Because can open independently of one another at any time with first and second valve member, close first and second interconnecting part, accurately oil temperature can be managed.

The invention of the 7th aspect, in the invention of fourth aspect, be characterised in that: described switching mechanism comprises valve member and drive unit, this valve member comprises the first valve body opening, close described first interconnecting part and the second valve body opening, close described second interconnecting part, described first valve body and described second valve body form as one, and this drive unit drives this valve member; When oil temperature state is lower than set point of temperature, described drive unit makes described valve member carry out opening described first interconnecting part with described first valve body and cuts out the work of described second interconnecting part with described second valve body, on the other hand, when oil temperature state is more than set point of temperature, described drive unit makes described valve member carry out cutting out described first interconnecting part with described first valve body and opening the work of described second interconnecting part with described second valve body.

The same with the invention of the 5th aspect, according to described structure, open the first interconnecting part and close the second interconnecting part when oil temperature is lower, therefore most of oil return can not flow in the lower side space of oil sump main body, but flows in oily flow through tube.On the other hand, close the first interconnecting part and open the second interconnecting part when oil temperature is higher, therefore most of high temperature oil return flows in the lower side space of oil sump main body.

Because can open with the valve member formed as one, close first and second interconnecting part, so number of components is less, structure can be made simple.

The invention of eighth aspect relates to a kind of invention of oil sump, this oil sump comprises oil sump main body and oily filter, this oil sump main body is stored the oil at power plant Inner eycle, this oily filter is configured in described oil sump main body, the oil be configured to being stored in this oil sump main body filters, and the oil filtered is fed to described power plant, it is characterized in that: described oily filter comprises and holds oily portion, oil flow through tube and filter cleaner, this holds the oil return returning after oily portion is used for being undertaken on described power plant Inner eycle from below, import in this oily flow through tube with the described oil accepted in oily portion that holds, this filter cleaner is configured in the inside of described oily flow through tube, be used for filtering the oil flowing through this oily flow through tube, described in the ratio of described oily flow through tube, filter cleaner is also near the upstream side of upstream, on the position of below, is also provided with the oil suction portion for making this oily flow through tube suck oil at the pasta than the oil be stored in described oil sump main body, the oil suction part that downstream portion and the described power plant of described oily flow through tube have is connected.

-invention effect-

According to the invention of first aspect, oily flow through tube is flowed to holding the oil return accepted in oily portion because allow, filter with the filter cleaner of the inside being configured in this oily flow through tube, and the oil filtered is fed to power plant, so the oil return heated up directly can be fed to power plant.Thereby, it is possible to shorten the warm-up period of power plant, energy-saving can be realized.

According to the invention of second aspect, because the ratio filter cleaner in oily flow through tube is also provided with the oil suction portion of the little opening portion of sectional area with area ratio oil flow through tube near the upstream side of upstream, so can prevent from, when required oil mass is more, insufficient lubrication occurs, and can seek to shorten warm-up period when required oil mass is less, can seek to make to prevent in power plant, going wrong and realize these measures two of energy-saving and stand.

According to the invention of the third aspect, because the ratio filter cleaner in oily flow through tube is also provided with the little gap of sectional area of area ratio oil flow through tube near the upstream side of upstream, so the same with the invention of second aspect, can seek to make to prevent in power plant, going wrong and realize these measures two of energy-saving and stand.

According to the invention of fourth aspect, because be formed with the first interconnecting part be communicated with the upstream extremity of oily flow through tube and the second interconnecting part be communicated with the lower space in oil sump main body holding oily portion, the second interconnecting part is opened when oil temperature is more than set point of temperature, so the excessive temperature of oil return can be suppressed to rise, the working life extending oil can be sought.

According to the invention of the 5th aspect, because open with valve member, close the first interconnecting part and the second interconnecting part, this first interconnecting part is communicated with the upstream extremity of oily flow through tube, this second interconnecting part is communicated with the lower space in oil sump, so when the cold starting of power plant and at the end of warming-up, the mobility status of oil reliably can both be controlled.Therefore, can either warm-up period be shortened, the working life extending oil can be sought again.

According to the invention of the 6th aspect, because open independently of one another with first and second valve member, close the first interconnecting part and the second interconnecting part, this first interconnecting part is communicated with the upstream extremity of oily flow through tube, this second interconnecting part is communicated with the lower space in oil sump, so accurately oil temperature can be managed, shortening warm-up period can be made with high level and extend these measures two in oily working life to stand.

According to the invention of the 7th aspect, because open with the valve member formed as one, close the first interconnecting part and the second interconnecting part, this first interconnecting part is communicated with the upstream extremity of oily flow through tube, this second interconnecting part is communicated with the lower space in oil sump, so can realize the less simple structure of number of components.Thereby, it is possible to carry out assembling operation easily, cost can be reduced.

According to the invention of eighth aspect, the same with the invention of first aspect, the warming velocity can accelerating oil, to shorten the warm-up period of power plant, can realize energy-saving.

Accompanying drawing explanation

[Fig. 1] Fig. 1 is seen from above to the stereogram of the oil sump involved by embodiments of the present invention.

[Fig. 2] Fig. 2 is the plan view of oily filter.

[Fig. 3] Fig. 3 is the figure seeing oily filter from vehicle rear-side.

[Fig. 4] Fig. 4 is the left view of oily filter.

[Fig. 5] Fig. 5 is the right elevation of oily filter.

[Fig. 6] Fig. 6 is the sectional view along the VI-VI line in Fig. 2.

[Fig. 7] Fig. 7 is the sectional view along the VII-VII line in Fig. 2.

[Fig. 8] Fig. 8 is the partial enlarged drawing seen from oblique upper, and the part obtained near oily flow through tube is cut off in display along the vertical direction.

[Fig. 9] Fig. 9 is plan view, shows the lower side member under the state being provided with filter cleaner.

[Figure 10] Figure 10 is the plan view of lower side member.

[Figure 11] Figure 11 is the right elevation of lower side member.

[Figure 12] Figure 12 is the partial sectional view along the XII-XII line in Fig. 7, and display engages the state before upper side member and lower side member.

[Figure 13] Figure 13 is the figure being equivalent to Figure 12, and display engages the state after upper side member and lower side member.

The figure being equivalent to Fig. 8 when [Figure 14] Figure 14 is the state of valve member when being in usually running.

[Figure 15] Figure 15 relates to the figure being equivalent to Fig. 7 of the second mode of execution.

[Figure 16] Figure 16 relates to the figure being equivalent to Fig. 7 of the first variation of the second mode of execution.

[Figure 17] Figure 17 relates to the figure being equivalent to Fig. 7 of the second variation of the second mode of execution.

[Figure 18] Figure 18 is the stereogram seeing a portion from below.

[Figure 19] Figure 19 relates to the figure being equivalent to Fig. 7 of the 3rd variation of the second mode of execution.

[Figure 20] Figure 20 relates to the figure being equivalent to Fig. 7 of the 3rd mode of execution.

[Figure 21] Figure 21 is the stereogram of the valve member in the 3rd mode of execution.

[Figure 22] Figure 22 relates to the figure being equivalent to Fig. 7 of the variation of the 3rd mode of execution.

[Figure 23] Figure 23 is the stereogram of the downside valve member in the 3rd mode of execution.

[Figure 24] Figure 24 relates to the figure being equivalent to Fig. 7 of the 4th mode of execution.

Symbol description

1 oil sump 10 oil sump main body

20 oily filters 21 hold oily portion

22 oily flow through tube 23 filter cleaners

24 valve member 24a first valve bodies

24b second valve body 25 actuator

26 control gear

About 40 space interconnecting parts (the second interconnecting part)

41 runner pipe interconnecting parts (the first interconnecting part)

101 first valve members

102 second valve members

About 103 space connecting ports (the second interconnecting part)

104 runner pipe connecting ports (the first interconnecting part)

C switching mechanism

E motor (power plant)

P return tube

Embodiment

Below, with reference to accompanying drawing to embodiments of the present invention in addition detailed description.Should illustrate, below to preferred embodiment description only example in essence, intention is not limited the present invention, application of the present invention or its purposes.

(the first mode of execution)

Fig. 1 is the figure of the oil sump 1 of display involved by the first mode of execution of the present invention.This oil sump 1 is arranged on the bottom of the motor E (showing this motor E with double dot dash line in FIG) be installed in automobile, and this oil sump 1 is used for storing the oil of established amount in the oil of motor E Inner eycle.

Should illustrate, in present embodiment description, by vehicle front side referred to as " front "; By vehicle rear-side referred to as " afterwards "; By vehicle right side referred to as " right side "; By vehicle left side referred to as " left side ".

Oil sump 1 comprises oil sump main body 10 and oily filter 20.As also shown in figure 3, oil sump main body 10 has concave shape open upward, forms and formed resinous wood.Oil sump main body 10 has shape longer on the crankshaft direction of motor E.As shown in Figure 1, in the upper end portion of oil sump main body 10, oil sump main body 10 upper end open circumferentially across gap-forming have run through this oil sump main body 10 along the vertical direction multiple fastening hole 11,11 ...The bolt (not shown) tightened up with the screw hole be formed in the cylinder block of motor E is inserted through each fastening hole 11.Further, in the sidewall portion of oil sump main body 10, leave each other compartment of terrain be formed fastening hole 12,12 ..., the bolt tightened up with the screw hole be formed in the speed changer (not shown) of vehicle inserted through this fastening hole 12,12 ...

The multiple lug bosses (not shown) being used for fixing described oily filter 20 are provided with in the inside of oil sump main body 10.The secure component such as screw or bolt is fastened on each lug boss.

Further, the return tube P (showing this return tube P with double dot dash line in fig. 1 and 2) of the oil return ejection of motor E is positioned at directly over the right back portion of oil sump main body 10.Should illustrate, most of oil return flows in oil sump main body 10 from return tube P, and remaining oil return (on a small quantity) is dripped from each position of the lower surface of cylinder block.

Further, although not shown, in motor E, be provided with oil pump.Oil pump utilizes the power of motor E to carry out work.The fuel sucking pipe (showing this fuel sucking pipe with symbol I in figure 3) of oil pump is positioned at directly over the left back portion of oil sump main body 10.Oil filter 20 is connected with this fuel sucking pipe I.

Oil filter 20 is configured to: filter the oil (oil return) turned back to after motor E Inner eycle in oil sump main body 10, and the oil filtered is fed to motor E again.Oil filter 20 comprises and holds oily portion 21, oil flow through tube 22 (showing this oily flow through tube 22 in Fig. 3 ~ Fig. 5), filter cleaner 23 (showing this filter cleaner 23 in Fig. 6 ~ Fig. 9), valve member 24, actuator 25 (showing this actuator 25 in FIG) and control gear 26, this holds oily portion 21 and accepts oil return, import in this oily flow through tube 22 with holding the oil return accepted in oily portion 21, this filter cleaner 23 is configured in the inside of oily flow through tube 22, be used for filtering the oil flowing through oily flow through tube 22, this valve member 24 is used for controlling the mobility status of oil return, these actuator 25 actuating valve parts 24, this control gear 26 is used for controlling actuator 25.

Hold the inside that oily portion 21 is configured in oil sump main body 10, be formed as tabular longer on the long side direction (left and right directions) of oil sump main body 10.As shown in Figure 6, oily flow through tube 22 has the shape of giving prominence to from the left-hand portion of holding oily portion 21 downwards.

As shown in figures 1 and 3, near the rising wood that the peripheral portion holding oily portion 21 is positioned at oil sump main body 10 and on the position of the inner peripheral surface of oil sump main body 10.Therefore, it is possible to by the roomy scope of holding oily portion 21 coating gas cylinder body lower surface, the oil return of gushing out from return tube P can not only be accepted with holding oily portion 21, also the oil return of dripping from each position of cylinder block lower surface can be accepted with holding oily portion 21.

As shown in Figure 6 and Figure 7, hold oily portion 21 and be bent to form, from this peripheral portion holding oily portion 21 to central part the closer to central part, be just located below.As shown in Figure 2, be formed near the peripheral portion holding oily portion 21 run through this along the vertical direction and hold oily portion 21 fastening hole 30,30 ...Each fastening hole 30 is positioned on the position corresponding with the lug boss of oil sump main body 10.To be fastened on lug boss inserted through the secure component in fastening hole 30, oily portion 21 will be held thus and be fastened in oil sump main body 10.

Should illustrate, except using the fastening structure of secure component, can also adopt and utilize the structure of the fixation method such as welding or adhesion to be fixed on structure in oil sump main body 10 as by holding oily portion 21.Further, hold oily portion 21 also can be fixed on motor E.

As shown in Figure 1, more shallow recess 31 is formed with at the upper surface holding oily portion 21.Recess 31 in from holding the channel-shaped extended roughly as the crow flies to the left near the edge, the right in oily portion 21, near the central position being positioned at fore-and-aft direction.As shown in Figure 7, the bottom surface of this recess 31 tilts to decline to the left.The oil dripped down from the lower surface of cylinder block is pooled to recess 31, then flows to the left side of holding oily portion 21.

As shown in Figure 1, also on the position of rear side, be provided with guide plate 32 at the ratio recess 31 holding oily portion 21, this guide plate 32 is used for guiding the oil return of gushing out from return tube P to the left.Guide plate 32 is given prominence to upward from the upper surface holding oily portion 21, and bends to the U-shaped opened to the left when overlooking, as shown in Figure 2.The downstream of return tube P is positioned at the inner side of this guide plate 32.As shown in Figure 1, the height of guide plate 32 is lower the closer to left side.Therefore, oil return sprays to the inner side of guide plate 32 from return tube P, and guide plate 32 stops this oil return to flow to hold the right side in oily portion 21, front side and rear side, and by this oil return guiding left side.

The part of being surrounded by guide plate 32 of holding on oily portion 21 upper surface is made up of the flexure plane 33 bent, and this flexure plane 33 is just located top the closer to the part on right side.The right part of flexure plane 33 is near the downstream of return tube P.Therefore, it is possible to utilize flexure plane 33 to accept the oil gushed out from return tube P on the position of the downstream near return tube P.Therefore, the flowing of oil return is not easily disorderly, and the mixed volume that bubble is mixed in oil return reduces.

Be formed and run through the opening portion 36 that this holds oily portion 21 holding oily portion 21.Opening portion 36 is positioned at central position than the left and right directions holding oily portion 21 also on the position in left side, has in approximate rectangular mouth.Hold the part being formed with opening portion 36 in oily portion 21 to cave in downwards from the upper surface holding oily portion 21.The right side of opening portion 36 is connected with the left part of recess 31.

As shown in Figure 7, the open area being positioned at right side in opening portion 36 forms upper and lower space interconnecting part (the second interconnecting part) 40, and this upper and lower space interconnecting part 40 makes the ratio of oil sump main body 10 hold oily portion 21 to be also also communicated with near the space R2 of downside with than holding oily portion 21 near the space R1 of upside.On the other hand, the open area being positioned at left side in opening portion 36 forms runner pipe interconnecting part (the first interconnecting part) 41, and this runner pipe interconnecting part 41 is communicated with the upstream extremity of oily flow through tube 22.

Around the interconnecting part of space up and down 40 holding oily portion 21 lower surface, be formed with projecting plate portion 42, this projecting plate portion 42 is outstanding downwards also along the circumferential direction to be extended.As shown in Figure 3, the closer to the part in left side in projecting plate portion 42, overhang outstanding is downwards larger, and the left edge portions in this projecting plate portion 42 is connected with the surrounding wall portion of oily flow through tube 22.

Oil flow through tube 22 comprises intake channel portion 51 (with reference to Fig. 7), filter cleaner accommodating part 52 and outlet pipe portion 53 (with reference to Fig. 6), oil return flows in this intake channel portion 51, this filter cleaner accommodating part 52 holds filter cleaner 23, and the oil return of having been filtered by filter cleaner 23 is circulated in outlet pipe portion 53.

Intake channel portion 51 forms the upstream side part of oily flow through tube 22.Intake channel portion 51 is formed as the approximate prism tubular extended along the vertical direction.The upper end of the surrounding wall portion in intake channel portion 51 is connected with the peripheral portion of the runner pipe interconnecting part 41 held on oily portion 21 lower surface.Therefore, the upper end (upstream extremity of oil flow) in intake channel portion 51 is also communicated with near the space R1 of upside with than holding oily portion 21 via runner pipe interconnecting part 41.

As shown in Figure 1, the size of the left and right directions in intake channel portion 51 is set as shorter than the size of fore-and-aft direction with the shape of runner pipe interconnecting part 41 accordingly.The sectional area in intake channel portion 51 is set in the sectional area of runner pipe interconnecting part 41 roughly equal or larger.Further, as shown in Figure 7 and Figure 8, notch 55 is formed with on the top of the right wall portion in intake channel portion 51.Notch 55 is connected with upper and lower space interconnecting part 40, jointly forms an opening portion with upper and lower space interconnecting part 40.

As shown in Figure 4 and Figure 5, filter cleaner accommodating part 52 is arranged on the underpart in intake channel portion 51, and the entirety of filter cleaner accommodating part 52 has box like longer in the longitudinal direction.As shown in Figure 6 to 8, the filter cleaner 23 be contained in filter cleaner accommodating part 52 is formed as tabular, is fixed into the state substantially horizontally extended in filter cleaner accommodating part 52.As shown in Figure 9, filter cleaner 23 comprises: entirety is the wet end 23a of the shape that length is longer in the longitudinal direction and is formed on the frame portion 23b of the surrounding of this wet end 23a with this wet end 23a.This wet end 23a and this frame portion 23b is formed as one by resinous wood.The front side of wet end 23a extends along the longitudinal direction in elongated shape, and rear side is formed as the larger shape of width longer in the lateral direction compared with front side.Further, wet end 23a is provided with the rib (not shown) for strengthening.

As shown in Figure 6 and Figure 7, filter cleaner accommodating part 52 is provided with fuel sucking pipe (oil suction portion) 60.This fuel sucking pipe 60 is configured to the ratio being stored in oil sump main body 10 be held the path of the oil suction of oily portion 21 also in the space R2 of downside to filter cleaner accommodating part 52.Therefore, filter cleaner accommodating part 52 is communicated with intake channel portion 51 and fuel sucking pipe 60, and oil return flows in filter cleaner accommodating part 52 from intake channel portion 51; The oil be stored in the R2 of space flows in filter cleaner accommodating part 52 from fuel sucking pipe 60.

Fuel sucking pipe 60 is given prominence to the right from the right side wall of filter cleaner accommodating part 52.The upstream-end opening 60a of fuel sucking pipe 60 be positioned at the close left and right directions of oil sump main body 10 central position and than the pasta L0 under the state of engine stop also near downside and also than the pasta Lm under the state of engine running also near the position of downside.When vehicle turning, although pasta Lm can as shown in symbol L1, L2 tilt, no matter pasta is L1 or L2, can both guarantee the oily degree of depth of the central position of oil sump main body 10 left and right directions regulation more than.That is, because make the upstream-end opening 60a of fuel sucking pipe 60 be positioned on the position of the central position of the left and right directions near oil sump main body 10, even if so pasta Lm tilts because of centrifugal force when vehicle turning etc., become the state shown in L1 or L2, also the upstream-end opening 60a of fuel sucking pipe 60 can be made to be positioned at than pasta L1, L2 also on the position of below, oily filter 20 can be suppressed to suck air.

The section of fuel sucking pipe 60 is approximate rectangular longer than the size of fore-and-aft direction of the size of above-below direction.The closer to upstream-end opening 60a, the sectional area of this fuel sucking pipe 60 is less.Further, the sectional area of the narrowest in fuel sucking pipe 60 part is set as with the sectional area in outlet pipe portion 53 described later roughly equal or larger.

As shown in Fig. 8 etc., filter cleaner accommodating part 52 is that combination upper side member (first component) 58 and lower side member (second component) 59 are formed.The parting plane of upper side member 58 and lower side member 59 is faces that the adjacent upper part in filter cleaner accommodating part 52 extends along approximate horizontal direction.Upper side member 58 comprises the plate portion of the upper wall portions forming filter cleaner accommodating part 52, and this upper wall portions and intake channel portion 51 form as one.Further, what in upper side member 58, be formed with the upper wall portions of formation fuel sucking pipe 60 extends plate portion 61.On the other hand, lower side member 59 forms the bottom wall portion of filter cleaner accommodating part 52 and the parts in concave shape of surrounding wall portion.

Position in the peripheral portion of the lower surface of upper side member 58 except the downstream-end opening 60a of fuel sucking pipe 60 is formed with the upside welding projecting strip part 62 of welding on lower side member 59.Further, in the peripheral part of the lower surface of upper side member 58, be formed with the surrounding wall portion 63 of surrounding upside welding projecting strip part 62 in the outside of upside welding projecting strip part 62.

Further, on the lower surface of upper side member 58, be formed in the inner side of upside welding projecting strip part 62 the frame portion 23b of filter cleaner 23 the stepped part 64 that is fitted together to.

And, as shown in figure 12, on the lower surface of upper side member 58, near the base end part extending plate portion 61, be formed with the first plate portion 65, upside, plate portion, upside second 66 and plate portion 67, upside the 3rd successively on rear side of the past side direction.Plate portion 65 ~ 67, upside the first ~ three is almost parallel and extend downwards with the center line of fuel sucking pipe 60.The first ~ three plate portion 65 ~ 67, upside is set as that the thickness of slab of the part the closer to downside is thinner.Further, the width in plate portion 65 ~ 67, upside the first ~ three is set as that the part (size on the centerline direction of fuel sucking pipe 60) the closer to downside is narrower.

On the other hand, the top of lower side member 59 is closed by upper side member 58.As shown in Figure 10 and Figure 11, at the peripheral portion of the upper end portion of lower side member 59, be formed with downside welding projecting strip part 69 accordingly with described upside welding projecting strip part 62.As shown in Figure 8, upside and downside welding projecting strip part 62,69 utilize known vibratory weld connection to be welding together, and upper side member 58 is integrated with lower side member 59 one-tenth.In this condition, the part except fuel sucking pipe 60 between upper side member 58 and lower side member 59 is sealed.When carrying out welding to upper side member 58 and lower side member 59, fixed upper parts 58, and lower side member 59 is vibrated along the left and right directions of this lower side member 59.

Should illustrate, the welding process beyond vibratory weld connection also can be utilized to carry out welding to upper side member 58 and lower side member 59, agent can also be sticked with glue and carry out bonding to upper side member 58 and lower side member 59.

As shown in Figure 10, the first width be provided with in the inside of lower side member 59 for forming the narrower part of width in the internal path of filter cleaner accommodating part 52 reduces plate 71 and the second width reduction plate 72.First width reduces plate 71 and extends upward from the diapire of lower side member 59, and extends from the front wall inner surface of filter cleaner accommodating part 52 to back.Second width reduces plate 72 and extends upward from the diapire of lower side member 59, and generally perpendicularly bending and extending to front after extending to the left from the right wall internal surface of filter cleaner accommodating part 52.Hinder marginal part and second width of the first width reduction plate 71 reduce the front edge of plate 72 in the longitudinal direction in opposite directions, and oil circulates between these edges.The oily path sectional area that first width reduces between front edge that the hinder marginal part of plate 71 and the second width reduce plate 72 is set as with the sectional area in outlet pipe portion 53 roughly equal or larger.

The rising wood reducing plate 71,72 at first and second width is also provided with downside welding projecting strip part 69.

This first and second width reduces the downside welding of plate 71,72 with projecting strip part 69 also welding on the upside welding projecting strip part 62 of upper side member 58.

Show the cross-section structure that the second width reduces plate 72 in fig. 8.The inside that first and second width reduces plate 71,72 is hollow.Because first and second width reduces the diapire of plate 71,72 and lower side member 59 and surrounding wall portion is connected, so first and second width reduces the effect that plate 71,72 plays the rib as lower side member 59, contribute to the rigidity improving lower side member 59.And first and second width described reduces plate 71,72 welding on upper side member 58, can improve the heat seal strength of upper side member 58 and lower side member 59 thus, and can improve the rigidity of filter cleaner accommodating part 52 entirety.Further, as shown in Figure 8, the top that first and second width reduces plate 71,72 abuts with the frame portion 23b of filter cleaner 23 from below, and supports this filter cleaner 23.

As shown in Figure 10, near fuel sucking pipe 60 base end part on the diapire of lower side member 59, be formed with the first plate portion 81, downside, plate portion, downside second 82, plate portion 83, downside the 3rd and plate portion 84, downside the 4th on rear side of side direction successively in the past.Plate portion 81 ~ 84, downside the first ~ four is almost parallel and extend upward with the center line of fuel sucking pipe 60.The first ~ four plate portion 81 ~ 84, downside is set as that the thickness of slab of the part the closer to upside is thinner.Further, plate portion 81 ~ 84, downside the first ~ four is set as that the width (size on the centerline direction of fuel sucking pipe 60) of the part the closer to upside is narrower.

The first plate portion 81, downside becomes to be integrated with the side surface of fuel sucking pipe 60; The 4th plate portion 84, downside also becomes to be integrated with the side surface of fuel sucking pipe 60.Therefore, oil can not flow between plate portion, downside first 81 and the side surface of fuel sucking pipe 60; Oil can not flow between plate portion 84, downside the 4th and the side surface of fuel sucking pipe 60.

As shown in figure 13, after making upper side member 58 and lower side member 59 one-tenth be integrated, plate portion 65, upside first inserts between the first plate portion 81, downside and plate portion, downside second 82; Plate portion 66, upside second inserts between the second plate portion 82, downside and plate portion 83, downside the 3rd; Plate portion 67, upside the 3rd inserts between the 3rd plate portion 83, downside and plate portion 84, downside the 4th.

Gap S1 is formed between plate portion, upside first 65 and plate portion, downside first 81 and plate portion, downside second 82.Further, between plate portion, upside second 66 and plate portion, downside second 82 and plate portion 83, downside the 3rd, gap S2 is formed; Gap S3 is formed between plate portion 67, upside the 3rd and plate portion 83, downside the 3rd and plate portion 84, downside the 4th.Total opening area of these gaps S1 ~ S3 is set as with the sectional area of the narrowest part in fuel sucking pipe 60 roughly equal or larger.But the sectional area in total open area ratio intake channel portion 51 of gap S1 ~ S3 is little.

That is, form by plate portion 65 ~ 67, upside the first ~ three and plate portion 81 ~ 84, downside the first ~ four resistance mechanism oil sucked from fuel sucking pipe 60 being produced to flow resistance.By regulating the size of the gap S1 ~ S3 between plate portion 65 ~ 67, upside the first ~ three and plate portion 81 ~ 84, downside the first ~ four, then can change arbitrarily the size of the resistance that resistance mechanism produces.In addition, if allow the width in the first ~ three plate portion 65 ~ 67, upside and plate portion 81 ~ 84, downside the first ~ four increase, resistance just becomes large; If allow described width reduce, resistance just diminishes.Therefore, by adjustment width, the size of resistance also can be changed arbitrarily.And if make the outstanding quantitative change in the first ~ three plate portion 65 ~ 67, upside and plate portion 81 ~ 84, downside the first ~ four large, resistance just becomes large; If allow described overhang diminish, resistance just diminishes.Therefore, by regulating overhang, the size of resistance can also be changed arbitrarily.

As shown in Figure 6, outlet pipe portion 53 extends upward from the upper wall portions of filter cleaner accommodating part 52, runs through and holds oily portion 21 and give prominence to upward from the upper surface holding oily portion 21.That is, the path in oily flow through tube 22 is formed by intake channel portion 51, filter cleaner accommodating part 52 and outlet pipe portion 53, extends in approximate U-shaped ground.

As shown in Figure 4, the upstream extremity in outlet pipe portion 53 and base end part (underpart) to be positioned at than intake channel portion 51 and also to leave on the position in this intake channel portion 51 near rear side.The section in outlet pipe portion 53 is sub-circular, and sectional area is less than the sectional area in intake channel portion 51.

Further, the surrounding wall portion in outlet pipe portion 53 and the surrounding wall portion in intake channel portion 51 are linked together by web portion 54.Web portion 54 forms as one with the surrounding wall portion in outlet pipe portion 53 and the surrounding wall portion in intake channel portion 51.Thus, outlet pipe portion 53 is integrated with 51 one-tenth, intake channel portion, and rigidity improves.

As shown in Figure 7 and Figure 8, described valve member 24 is configured in opening portion 36.The application target of valve member 24 is: the situation of carrying out warm-operation when being in cold starting etc., when oil temperature is lower, makes oil return flow to oily flow through tube 22 with valve member 24; Oil temperature is higher when usual running etc., hold oily portion 21 also near the space R2 of downside with the ratio that valve member 24 makes oil return flow to oil sump main body 10.

Valve member 24 is so-called butterfly valve type valve members, comprise the first valve body 24a, the second valve body 24b and rotatingshaft 24c, this first valve body 24a is used for opening, closing the runner pipe interconnecting part 41 holding oily portion 21, and this second valve body 24b is used for opening, closing the interconnecting part of space up and down 40 holding oily portion 21.First and second valve body 24a, 24b are formed as one by resinous wood.The approximate rectangular tabular of the first valve body 24a in the peripheral portion be formed as along runner pipe interconnecting part 41 of valve member 24; Second valve body 24b is in the approximate rectangular tabular of peripheral portion being formed as vertically space interconnecting part 40.First valve body 24a is roughly the same with the shape of the second valve body 24b, and time viewed from the direction extended from rotatingshaft 2c as shown in Figure 7, in the first valve body 24a and the second valve body 24b angulation, the angle of downside is less than 180 °.Further, in valve member 24, be formed with extension and make the rib 24e that the first valve body 24a and the second valve body 24b couples together.

Rotatingshaft 24c is arranged between the first valve body 24a and the second valve body 24b.This rotatingshaft 24c also forms as one with the first valve body 24a and the second valve body 24b.Rotatingshaft 24c is the hollow shaft to both ends open.Be used for the live axle 80 of actuating valve parts 24 inserted through the inside of rotatingshaft 24c.

Valve member 24 is arranged on this be rotatably supported on the state of holding in oily portion 21 in the both sides of the long side direction of rotatingshaft 24c under and holds in oily portion 21.That is, the bearing hole 42a (with reference to Fig. 8) substantially horizontally extended in the longitudinal direction is formed respectively in the both sides, front and back in the projecting plate portion 42 of holding oily portion 21.Rotatingshaft 24c is inserted through bearing hole 42a.Live axle 80 inserted through rotatingshaft 24c runs through projecting plate portion 42, and runs through the rear wall parts of oil sump main body 10, and the rear side to this oil sump main body 10 is outstanding.

The valve member 24 moving axis 24c that rotates rotates and changes the state of this valve member 24.As shown in Figure 7 and Figure 8, after the second valve body 24b turns to the position substantially flush with the bottom surface of the recess 31 holding oily portion 21, valve member 24 becomes the first valve body 24a and is positioned at the below of runner pipe interconnecting part 41 and opens runner pipe interconnecting part 41 and the second valve body 24b closes the state (state during warm-operation) of upper and lower space interconnecting part 40.On the other hand, as shown in figure 14, after the first valve body 24a turns to the position substantially flush with the peripheral portion of the runner pipe interconnecting part 41 holding oily portion 21, valve member 24 becomes the first valve body 24a and closes runner pipe interconnecting part 41 and the second valve body 24b is positioned at the below of upper and lower space interconnecting part 40 and opens the state (state usually during running) of upper and lower space interconnecting part 40.

As shown in Figure 8, during state when valve member 24 is in warm-operation, the notch 55 on the top in intake channel portion 51 is closed by the first valve body 24a.Now, because the second valve body 24b is connected with the bottom surface of recess 31, the first valve body 24a is also connected with the second valve body 24b, so the part that oil can circulate is formed into the first valve body 24a from recess 31 via the second valve body 24b.

On the other hand, as shown in figure 14, when valve member 24 is in state when usually operating, the second plate portion 24b is positioned at the position covering notch 55 from right side.Therefore, the oil return of holding oily portion 21 not easily flows in oily flow through tube 22 from notch 55.

Further, on the arbitrary position in state when valve member 24 can be made to be parked in warm-operation and the slewing area between state when usually operating.Therefore, also runner pipe interconnecting part 41 roughly half can be opened, upper and lower space interconnecting part 40 roughly half can be opened again.

As shown in Figure 1, described actuator 25 is configured in the outside of oil sump main body 10.Output shaft and the live axle 80 of actuator 25 are tied, and the output of actuator 25 passes to valve member 24.The kind of actuator 25 is not subject to special restriction, can be electric actuator, can be the actuator of the negative pressure utilizing motor E gas handling system yet.

Described control gear 26 is connected with actuator 25.Further, the temperature transducer 81 that the oil temperature state in oil sump main body 10 detects is connected with this control gear 26.Control gear 26 is configured to: control actuator 25 according to the output signal of temperature transducer 81.That is, when temperature transducer 81 detected oil temperature such as less than 10 DEG C, the judgement that motor E is in cold starting made by control gear 26, exports control signal to actuator 25, state when becoming warm-operation to allow valve member 24.On the other hand, when temperature transducer 81 detected oil temperature such as more than 50 DEG C, the judgement that motor E is in usual operating condition made by control gear 26, exports control signal to actuator 25, state when becoming usually running to allow valve member 24.The occurrence only example of described temperature, temperature value is not limited to above-mentioned value, as long as temperature value can to the value needing the state of the state of warming-up and carrying out in addition running usually to distinguish when being in cold starting.

Should illustrate, control gear 26 also can not direct-detection oil temperature, such as, also can infer oil temperature state according to temperature of water temperature or outside air etc.In addition, oil temperature state can also be inferred according to running time of motor E etc.Further, actuator 25 can also be controlled according to the much information in these information.Described valve member 24, actuator 25 and control gear 26 form switching mechanism C.

Then, the effect that the oil sump 1 formed as mentioned above plays is illustrated.When carrying out warm-operation when motor E is in cold starting, control gear 26 pairs of actuators 25 control, the state (showing state during this warm-operation in fig. 8) when making the state of valve member 24 become warm-operation.When motor E is in operating condition, negative pressure acts on the inside of oily flow through tube 22 because of the work of oil pump.

Then, oil return is gushed out from the return tube P of motor E.From the inside of the oil return inflow guide plate 32 that return tube P has sprayed, then guide to the left i.e. opening portion 36 side by guide plate 32.Further, the oil dripped from the lower surface of cylinder block is accepted by the various piece of holding oily portion 21, then flows to recess 31.Oil in recess 31 flows to opening portion 36 side.

Now, because space interconnecting part 40 is closed by the second valve body 24b up and down, notch 55 has been closed by the first valve body 24a and runner pipe interconnecting part 41 opens, so flow in the intake channel portion 51 of oily flow through tube 22 from runner pipe interconnecting part 41 in the oil return of motor E Inner eycle intensification, then flow to below.The oil having flow through intake channel portion 51 flows in filter cleaner accommodating part 52, flows through first and second width and reduces between plate 71,72, by filter cleaner 23 above then being changed into by flow direction.In such event, oil is filtered.

Then, the oil filtered by filter cleaner 23 flows through outlet pipe portion 53 and is drawn in motor E.

That is, when warm-operation, by hold the oil return accepted in oily portion 21 during flowing through oily flow through tube 22 in filtered by filter cleaner 23, feed to motor E afterwards.Therefore, be stored in the low-temperature oil in oil sump main body 10 and not easily mixed in the oil return that motor E Inner eycle heats up.Consequently, the oil return that the decline of temperature is suppressed directly feeds to motor E by oily flow through tube 22.Thereby, it is possible to immediately light viscosity oil is fed to motor E, the warm-up period of motor E is shortened.

Further, when warm-operation, because the oil temperature in oil sump main body 10 is lower, oil viscosity is higher.Therefore, the oil mass sucked from the fuel sucking pipe 60 of oily flow through tube 22 is less.And, because have the first ~ three plate portion 65 ~ 67, upside and plate portion 81 ~ 84, downside the first ~ four in the internal configurations of fuel sucking pipe 60, flow resistance to the oil in fuel sucking pipe 60 produces is increased, and this also becomes and suppresses low-temperature oil to flow into factor in oily flow through tube 22.

When warm-operation, such as, rise higher than the rotating speed of idle running at the rotating speed of motor E, when oily required amount increases, the negative pressure in oily flow through tube 22 increases.After negative pressure in oily flow through tube 22 increases, the oil be stored in lower side space R2 is drawn in oily flow through tube 22 from fuel sucking pipe 60.Like this, the insufficient lubrication owing to occurring for shortage of oil is just avoided.

On the other hand, in oil temperature rising, after terminating warm-operation, control gear 26 controls actuator 25, and the state of valve member 24 becomes the state (showing state when this operates usually in fig. 14) when usually operating.Like this, just open upper and lower space interconnecting part 40, thus oil return is flow through and is held oily portion 21, then flows through upper and lower space interconnecting part 40 and flow in lower side space R2.

Further, the surface of the first valve body 24a of valve member 24 and the surface of the second valve body 24b are flow through in the oil return dropping onto the left side of holding oily portion 21, then flow in lower side space R2.That is, the first valve body 24a and the second valve body 24b forms the guide surface guiding oil.

Flow into oil return in lower side space R2 to mix with the oil be stored in lower side space R2.Then, the oil temperature in lower side space R2 rises, and oil viscosity declines.Because the oil that this viscosity has declined easily flows through fuel sucking pipe 60, so enough oil can be guided to oily flow through tube 22, also can deal with even if oily required amount is more.Further, because make oil return flow in lower side space R2, so the excessive temperature of oil return can be suppressed to rise.

Should illustrate, because can state when warm-operation and stop valve parts 24 between state when usually operate, so pass through the stop position of modulating valve parts 24, then can change the aperture of upper and lower space interconnecting part 40 and runner pipe interconnecting part 41.Therefore, it is possible to make a part for oil return flow to runner pipe interconnecting part 41, and make the part be left flow to upper and lower space interconnecting part 40, the oil return flowed in runner pipe interconnecting part 41 and the ratio flowing into the oil return in upper and lower space interconnecting part 40 can be changed.Thereby, it is possible to accurately manage oil temperature.

As mentioned above, according to this first mode of execution, oily flow through tube 22 is flowed to holding the oil accepted in oily portion 21 because allow, with the filter cleaner 23 being configured in this oily flow through tube 22 inside, this oil is filtered, and the oil filtered is fed to motor E, so the oil return heated up directly can be fed to motor E.Thereby, it is possible to accelerate the warming velocity of oil, shorten the warm-up period of motor E, realize energy-saving.

Further, because be also provided with fuel sucking pipe 60, so can prevent motor E from when oily required amount is more, insufficient lubrication occurring near the upstream side of upstream at the ratio filter cleaner 23 of oily flow through tube 22.And, because gap S1 ~ S3 that the sectional area being provided with area ratio intake channel portion 51 in fuel sucking pipe 60 is little, so the intake of low-temperature oil can be reduced when oily required amount is less, seek the shortening of warm-up period.Stand therefore, it is possible to seek to make to prevent going wrong and realize these measures two of energy-saving in motor E.

Further, because open with the valve member 24 formed as one, close upper and lower space interconnecting part 40 and runner pipe interconnecting part 41, so the less simple structure of number of components can be realized.Thereby, it is possible to carry out assembling operation easily, cost can be reduced.

(the second mode of execution)

Figure 15 is the figure of a part for the oil sump 1 of display involved by the second mode of execution of the present invention.Oil sump 1 in this second mode of execution and oil sump 1 difference in the first mode of execution only have the structure of the oily flow through tube 22 of oily filter 20, and other parts are identical.Therefore, below the part different from the first mode of execution is described in detail.

In this second embodiment, filter cleaner 90 is contained in the outlet pipe portion 53 of oily flow through tube 22.Filter cleaner 90 comprises: the wet end 90a extended roughly along the vertical direction, be arranged on wet end 90a upper end portion upside fixing part 90b and be arranged on the downside fixing part 90c of underpart of wet end 90a.Be configured in the axes intersect in wet end 90a and outlet pipe portion 53 inside in outlet pipe portion 53.Flow through the full dose of the oil in outlet pipe portion 53 by wet end 90a.Upside and downside fixing part 90b, 90c be formed as along the inner peripheral surface in outlet pipe portion 53 extend circular.Be formed with upside abutting part 53a and downside abutting part 53b in the inside in outlet pipe portion 53, on the upside of this, abutting part 53a abuts from top with upside fixing part 90b, and on the downside of this, abutting part 53b abuts with downside fixing part 90c from below.These abutting parts 53a, 53b determine the position of filter cleaner 90.

Should illustrate, the fixed structure of filter cleaner 90 is not limited to said structure, also can be the structure utilizing the methods such as adhesion to be fixed.

Further, in the wall portion (bottom wall portion) of the underpart of oily flow through tube 22, inlet port (opening portion) 91 is formed with at the position left immediately below filter cleaner 90.The opening area of inlet port 91 is set as: the sectional area in the intake channel portion 51 of this open area ratio oil flow through tube 22 is little, and roughly equal with the sectional area in outlet pipe portion 53.Inlet port 91 can be formed by such as gap etc.Further, when changing oil, inlet port 91 plays the effect for the exhaust port of being discharged by the oil in oily flow through tube 22.

Then, the effect that the oil sump 1 formed as mentioned above plays is illustrated.When motor E carries out warm-operation, the state of valve member 24 becomes the state (showing state during this warm-operation in the figure) during warm-operation, flow to below in the intake channel portion 51 that oil return flows into oily flow through tube 22, then flow direction changed into top and flow through outlet pipe portion 53.The oil flowing through outlet pipe portion 53 is filtered by filter cleaner 90, then is drawn in motor E.

Further, when warm-operation, because the oil temperature of the lower side space R2 of oil sump main body 10 is lower, oil viscosity is higher, so the oil mass sucked from the inlet port 91 of oily flow through tube 22 is less.And the sectional area of the open area ratio oil flow through tube 22 of inlet port 91 is little, and this also becomes the factor making the oil in lower side space R2 be drawn into the amount minimizing in oily flow through tube 22.

Such as, when warm-operation, when the oily required amount of motor E increases, because the negative pressure in oily flow through tube 22 increases, so the oil be stored in lower side space R2 is drawn in oily flow through tube 22 from inlet port 91.Like this, the insufficient lubrication owing to occurring for shortage of oil is just avoided.

On the other hand, in oil temperature rising, after terminating warm-operation, although not shown, the state of valve member 24 becomes state when usually operating.Like this, just open upper and lower space interconnecting part 40, thus oil return is flow through and is held oily portion 21, then flows through upper and lower space interconnecting part 40 and flow in lower side space R2.

As mentioned above, according to this second mode of execution, the same with the first mode of execution, oily flow through tube 22 is flowed to holding the oil return accepted in oily portion 21 because allow, with the filter cleaner 90 being configured in this oily flow through tube 22 inside, this oil return is filtered, and the oil filtered is fed to motor E, so the oil return heated up directly can be fed to motor E.Thereby, it is possible to accelerate the warming velocity of oil, shorten the warm-up period of motor E, realize energy-saving.

Further, the ratio filter cleaner 90 in oily flow through tube 22 is also formed with the little inlet port 91 of the sectional area of open area ratio oil flow through tube 22 near the upstream side of upstream.Therefore, it is possible to prevent motor E from when oily required amount is more, insufficient lubrication occurring, and can seek to shorten warm-up period when oily required amount is less, can seek to make to prevent in motor E, going wrong and realize these measures two of energy-saving and stand.

Further, because filter cleaner 90 is contained in outlet pipe portion 53, so oily flow through tube 22 can be made compared with the situation of the first mode of execution less.

Should illustrate, also only can form inlet port 91 in the sidewall portion of oily flow through tube 22; Inlet port 91 can also be formed in the bottom wall portion of oily flow through tube 22 and sidewall portion.Further, the shape of inlet port 91 also can be circular.Further, the quantity of inlet port 91 also can be one, it can also be more than three.

Further, the first variation is as shown in figure 16 such, also can arrange to the outstanding wall portion 92 in the outside (below) of oily flow through tube 22 at the peripheral portion of inlet port 91.This wall portion 92 is used for increasing flow resistance when oil flows in inlet port 91.In such event, the amount that the oil in lower side space R2 just can be made when warm-operation to flow in oily flow through tube 22 reduces, and can shorten warm-up period.

Further, the second variation is as shown in Figure 17 and Figure 18 such, also can the peripheral portion of inlet port 91 arrange outside (below) to oily flow through tube 22 outstanding have cylinder portion, the end 93.This portion 93 is used for increasing flow resistance when oil flows in inlet port 91.As shown enlargedly in figure 18, the downside of the surrounding wall portion in cylinder portion 93 in a circumferential direction across gap-forming have extend along the vertical direction gap 93a, 93a ..., oil flows in cylinder portion 93 through these gaps 93a.According to this second variation, the amount that the oil in lower side space R2 also can be made to flow into when warm-operation in oily flow through tube 22 reduces, and can shorten warm-up period.Further, cylinder portion 93 also can be arranged on the position left immediately below filter cleaner 90.Further, the magnitude setting in cylinder portion 93 also can be multiple.Further, the effect of exhaust port is also played in cylinder portion 93 when changing oil.

Further, the 3rd variation is as shown in figure 19 such, and the underpart of oily flow through tube 22 also can be allowed to open wide.The underpart of oil flow through tube 22, near the bottom wall portion of oil sump main body 10, is formed with narrower gap between the underpart and the bottom wall portion of oil sump main body 10 of oily flow through tube 22.Further, in the underpart of oily flow through tube 22 in a circumferential direction across gap-forming have notch 94,94 ...

Further, be formed with multiple outstanding wall 95,95 in the bottom wall portion of oil sump main body 10, the plurality of outstanding wall 95,95 is given prominence to upward and surrounds a part for the underpart of oily flow through tube 22.Outstanding wall 95,95 is being circumferentially arranged at intervals at oily flow through tube 22.Outstanding wall 95 and oily flow through tube 22 close to each other.Oil in lower side space R2 flows through between outstanding wall 95,95, and the gap between the underpart and the bottom wall portion of oil sump main body 10 of oily flow through tube 22 is drawn in oily flow through tube 22.By the spacing that changes between outstanding wall 95 and oily flow through tube 22 or the spacing between the underpart changing oily flow through tube 22 and the bottom wall portion of oil sump main body 10, then can the influx that oil flows in oily flow through tube 22 be regulated.

Further, described outstanding wall 95 forms as one with oil sump main body 10, but is not limited to this.Also described outstanding wall 95 can be made with the parts different from oil sump main body 10, and by this assembling parts in this oil sump main body 10.

(the 3rd mode of execution)

Figure 20 is the figure of the oily filter 20 of display involved by the 3rd mode of execution of the present invention.Oily filter 20 in this 3rd mode of execution and oily filter 20 difference in the first mode of execution are the structure of valve member 24.Below, the part different from the first mode of execution is described in detail.

Valve member 97 comprises the first valve body 97a, the second valve body 97b, rotatingshaft 97c and the 3rd valve body 97d, this first valve body 97a is used for opening, closing the runner pipe interconnecting part 41 holding oily portion 21, this second valve body 97b is used for opening, closing the part that the interconnecting part of space up and down the 40, three valve body 97d holding oily portion 21 is used for opening, closing fuel sucking pipe 60.

As also shown in figure 21, the 3rd valve body 97d is formed as the tabular from extending between the first valve body 97a and the second valve body 97b.The width of the 3rd valve body 97d is narrower than the width of the first valve body 97a.Further, the 3rd valve body 97d is configured to: a part of closing fuel sucking pipe 60 by the tip side part of the 3rd valve body 97d.Notch 97e, 97e is formed in the tip side of the 3rd valve body 97d.The quantity of notch 97e also can be one, also can be more than three.Should illustrate, can also through hole etc. be formed, replace notch 97e.

During state (showing state during this warm-operation in fig. 20) when valve member 97 is in warm-operation, the 3rd valve body 97d is positioned on the position of a part of closing fuel sucking pipe 60.The tip side part of the 3rd valve body 97d produces flow resistance to the oil of circulation in fuel sucking pipe 60.On the other hand, as used shown in double dot dash line in fig. 20, when valve member 97 is in state when usually operating, the 3rd valve body 97d leaves fuel sucking pipe 60, thus fuel sucking pipe 60 all openings.

Then, the effect of the 3rd mode of execution is illustrated.When motor E carries out warm-operation, the state of valve member 97 becomes state during warm-operation, flows to below, then flow direction changed into top and flow through outlet pipe portion 53 in the intake channel portion 51 that oil return flows into oily flow through tube 22.The oil flowing through outlet pipe portion 53 is filtered by filter cleaner 23, then is drawn in motor E.

Further, when warm-operation, because the oil temperature of the lower side space R2 of oil sump main body 10 is lower, oil viscosity is higher, so the oil mass sucked from the fuel sucking pipe 60 of oily flow through tube 22 is less.And a part for fuel sucking pipe 60 is covered by the 3rd valve body 97d, this also becomes the factor making the oil in lower side space R2 be drawn into the amount minimizing in oily flow through tube 22.

When warm-operation, when the oily required amount of such as motor E increases, because the negative pressure in oily flow through tube 22 increases, be drawn in oily flow through tube 22 so be stored in the notch 97e that the oil in lower side space R2 flows through the 3rd valve body 97d from fuel sucking pipe 60.Like this, the insufficient lubrication owing to occurring for shortage of oil is just avoided.

On the other hand, in oil temperature rising, after terminating warm-operation, the state of valve member 97 becomes state when usually operating.Like this, just open upper and lower space interconnecting part 40, thus oil return is flow through and is held oily portion 21, then flows through upper and lower space interconnecting part 40 and flow in lower side space R2.Further, because the 3rd valve body 97d leaves fuel sucking pipe 60, so the oil in lower side space R2 is inhaled into from fuel sucking pipe 60.

Further, oily filter 20 is configured to: when such as the oil mass started required by the motors such as traveling sharply increases immediately after the engine is started up, valve member 97 is rotated, opens fuel sucking pipe 60.Thereby, it is possible to guarantee fuel delivery according to the requirement of motor.

As mentioned above, according to the oil sump 1 involved by this 3rd mode of execution, the same with the first mode of execution, oily flow through tube 22 is flowed to holding the oil return accepted in oily portion 21 because allow, with the filter cleaner 23 being configured in this oily flow through tube 22 inside, this oil return is filtered, and the oil filtered is fed to motor E, so the oil return heated up directly can be fed to motor E.Thereby, it is possible to accelerate the warming velocity of oil, shorten the warm-up period of motor E, realize energy-saving.

Further, variation is as shown in Figure 22 and Figure 23 such, also can arrange downside valve member 100, replace the 3rd valve body 97d.On the downside of this, valve member 100 is configured in the inside of fuel sucking pipe 60.Downside valve member 100 comprises valve body 100a, rotatingshaft 100b and is located at the sidewall portion 100c of edge, both sides of rotating shaft direction of valve body 100a.Rotatingshaft 100b extends along general horizontal direction, is rotatably supported in the sidewall portion of fuel sucking pipe 60.Valve body 100a is formed as the tabular more smaller than the section shape of fuel sucking pipe 60.Gap is formed between the peripheral portion and the inner peripheral surface of fuel sucking pipe 60 of valve body 100a.The side surface of sidewall portion 100c and fuel sucking pipe 60 extends substantially in parallel.Oil is present between the side surface of sidewall portion 100c and fuel sucking pipe 60.Therefore, if downside valve member 100 will rotate, due to the shearing resistance of the oil between sidewall portion 100c and the side surface of fuel sucking pipe 60, downside valve member 100 just not easily rotates.Oil temperature is lower, and the strength needed for the rotation of downside valve member 100 is larger.

Regulated by the size etc. in the length of offside wall portion 100c and width, gap between sidewall portion 100c and the side surface of fuel sucking pipe 60, then can change the strength needed for rotation of downside valve member 100.

When warm-operation, because the oil temperature of oil sump main body 10 is lower, viscosity is higher, so downside valve member 100 not easily opens fuel sucking pipe 60.Therefore, less from the oil mass of fuel sucking pipe 60 suction.On the other hand, in oil temperature rising after terminating warm-operation, because oil viscosity is lower, so downside valve member 100 can open fuel sucking pipe 60 easily.Therefore, oil is inhaled into from fuel sucking pipe 60.

Further, when do not carry out warm-operation just allow travelled by vehicle, the oil mass required by motor sharply increases, and the negative pressure in oily flow through tube 22 increases.Downside valve member 100 is opened due to this negative pressure, thus can not occur for shortage of oil.

(the 4th mode of execution)

Figure 24 is the figure of the oily filter 20 of display involved by the 4th mode of execution of the present invention.Oily filter 20 in this 4th mode of execution and the second mode of execution difference are: comprise the first valve member 101 and the second valve member 102 at this 4th mode of execution.Below, to the second mode of execution difference detailed description in addition.

Be formed with upper and lower space connecting port (the second interconnecting part) 103 and runner pipe connecting port (the first interconnecting part) 104 holding oily portion 21, this upper and lower space connecting port 103 makes the ratio of oil sump main body 10 hold oily portion 21 and the space R1 near upside is also connected near the space R2 of downside with than holding oily portion 21, and this runner pipe connecting port 104 is connected with the upstream extremity of oily flow through tube 22.

First valve member 101 is used for opening, closing runner pipe connecting port 104, comprises valve body 101a and rotatingshaft 101b.Rotatingshaft 101b is rotatably supported on and holds in oily portion 21.

Second valve member 102 is used for opening, closing upper and lower space connecting port 103, comprises valve body 102a and rotatingshaft 102b.Rotatingshaft 102b is rotatably supported on and holds in oily portion 21.Rotatingshaft 102b and rotatingshaft 101b are linked with the output shaft of the actuator (not shown) identical with the first mode of execution, rotate according to oil temperature as the first mode of execution.

That is, as shown in figure 24, when warm-operation, the first valve member 101 is opened runner pipe connecting port 104, second valve member 102 and is closed upper and lower space connecting port 103.Further, as shown in double dot dash line, when usually operating, the first valve member 101 is closed runner pipe connecting port 104, second valve member 102 and is opened upper and lower space connecting port 103.

Then, the effect of the 4th mode of execution is illustrated.

When warm-operation, open runner pipe connecting port 104 and close upper and lower space connecting port 103, therefore oil return flows in oily flow through tube 22 from runner pipe connecting port 104, then is filtered by filter cleaner 90, is then drawn in motor E.

On the other hand, after warm-operation terminates, close runner pipe connecting port 104 and open upper and lower space connecting port 103.Thus, oil return flows in lower side space R2.

As mentioned above, according to the oil sump 1 involved by this 4th mode of execution, oily flow through tube 22 is flowed to holding the oil return accepted in oily portion 21 because allow, with the filter cleaner 90 being configured in this oily flow through tube 22 inside, this oil return is filtered, and the oil filtered is fed to motor E, so the oil return heated up directly can be fed to motor E.Thereby, it is possible to accelerate the warming velocity of oil, shorten the warm-up period of motor E, realize energy-saving.

Further, because open and close, so moment and the aperture of opening and closing can be changed respectively runner pipe connecting port 104 and upper and lower space connecting port 103 independently of one another with the first valve member 101 and the second valve member 102.Thereby, it is possible to accurately manage oil temperature.

Also with coupling component etc., the first valve member 101 and the second valve member 102 can be tied, with an actuator, the first valve member 101 and the second valve member 102 be conjugated.Further, a valve member displacement in the first valve member 101 and the second valve member 102 also only can be made according to oil temperature state.

Should illustrate, what illustrate in described first ~ four mode of execution is the situation applying the present invention to engine for automobile E, but is not limited to this.The present invention can be applied to automatic transmission of the such as various motor such as construction equipment use or generating use and vehicle etc.

Further, also oily portion 21 and oily flow through tube 22 can be held by parts different from each other formation.

Further, also such as oil sump main body 10 can be formed by resin, steel plate or aluminum casting.

-industrial applicability-

As mentioned above, oily filter involved in the present invention and oil sump can be applied to the motor of such as automobile.

Claims

1. an oily filter, this oily filter is configured in the oil sump main body of storing at the oil of power plant Inner eycle, the oil be configured to being stored in this oil sump main body filters, and the oil filtered is fed to described power plant, it is characterized in that:

Described oily filter comprises:

Hold oily portion, after being used for being undertaken on described power plant Inner eycle from below, return the oil return come,

Oil flow through tube, holds the oil return accepted in oily portion described in using and imports in this oily flow through tube, and

Filter cleaner, is configured in the inside of described oily flow through tube, is used for filtering the oil flowing through this oily flow through tube;

Described oily flow through tube has:

Intake channel portion, holds the oil return accepted in oily portion import this intake channel portion by described,

Filter cleaner accommodating part, is arranged on the downstream side in this intake channel portion, holds described filter cleaner, and

Outlet pipe portion, is arranged on the downstream side of described filter cleaner accommodating part, flows out the oil return after being filtered by described filter cleaner,

On described filter cleaner accommodating part, be stored in than hold described in described oil sump main body oily portion closer to the oil of downside pasta compared with to be provided with closer to the position of below and to hold than described oily portion is also drawn into the upstream side of described filter cleaner also near upstream than described filter cleaner accommodating part oil suction portion near the oil of downside for making to be stored in;

The oil suction part that described outlet pipe portion and described power plant have is connected,

The opening portion that the sectional area that described oil suction portion has the upstream side of oily flow through tube described in area ratio is little.

2. oily filter according to claim 1, is characterized in that:

Described oily flow through tube combination first component and second component and form;

Described oil suction portion is formed in the gap between described first component and described second component;

Described in the area ratio in described gap, the sectional area of the upstream side of oily flow through tube is little.

3. oily filter according to claim 1 and 2, is characterized in that:

Hold oily portion be formed with the first interconnecting part and the second interconnecting part described, this first interconnecting part is communicated with the upstream extremity of described oily flow through tube, this second interconnecting part runs through this and holds oily portion, and with hold oily portion described in the ratio in described oil sump main body and be also communicated with near the space of below, and hold oily portion and be provided with described the switching mechanism opening, close at least described second interconnecting part;

Described switching mechanism is configured to: open described second interconnecting part when oil temperature state is more than set point of temperature.

4. oily filter according to claim 3, is characterized in that:

Described switching mechanism comprises valve member and drive unit, and this valve member is opened, close described first interconnecting part and described second interconnecting part, and this drive unit drives this valve member;

When oil temperature state is lower than set point of temperature, described drive unit makes described valve member carry out opening described first interconnecting part and the work of cutting out described second interconnecting part, on the other hand, when oil temperature state is more than set point of temperature, described drive unit makes described valve member carry out cutting out described first interconnecting part and the work of opening described second interconnecting part.

5. oily filter according to claim 3, is characterized in that:

Described switching mechanism comprises the first valve member, the second valve member and drive unit, this first valve member is opened, close described first interconnecting part, this second valve member is opened, close described second interconnecting part, and this drive unit drives described first valve member and described second valve member;

When oil temperature state is lower than set point of temperature, described drive unit makes described first valve member carry out opening the work of described first interconnecting part, and make described second valve member carry out closing the work of described second interconnecting part, on the other hand, when oil temperature state is more than set point of temperature, described drive unit makes described first valve member carry out cutting out the work of described first interconnecting part, and makes described second valve member carry out opening the work of described second interconnecting part.

6. oily filter according to claim 3, is characterized in that:

Described switching mechanism comprises valve member and drive unit, this valve member comprises the first valve body opening, close described first interconnecting part and the second valve body opening, close described second interconnecting part, described first valve body and described second valve body form as one, and this drive unit drives this valve member;

When oil temperature state is lower than set point of temperature, described drive unit makes described valve member carry out opening described first interconnecting part with described first valve body and cuts out the work of described second interconnecting part with described second valve body, on the other hand, when oil temperature state is more than set point of temperature, described drive unit makes described valve member carry out cutting out described first interconnecting part with described first valve body and opening the work of described second interconnecting part with described second valve body.

7. an oil sump, this oil sump comprises oil sump main body and oily filter, this oil sump main body is stored the oil at power plant Inner eycle, this oily filter is configured in described oil sump main body, the oil be configured to being stored in this oil sump main body filters, and the oil filtered is fed to described power plant, it is characterized in that:

Described oily filter comprises and holds oily portion, oily flow through tube and filter cleaner, this holds the oil return returning after oily portion is used for being undertaken on described power plant Inner eycle from below, hold the oil return accepted in oily portion import in this oily flow through tube with described, this filter cleaner is configured in the inside of described oily flow through tube, is used for filtering the oil flowing through this oily flow through tube;

Described oily flow through tube has: