CN1029145C

CN1029145C - Device for the lubrication of cylinders

Info

Publication number: CN1029145C
Application number: CN92114124A
Authority: CN
Inventors: 沃纳·萨姆
Original assignee: Joseph Voegele AG
Current assignee: Joseph Voegele AG
Priority date: 1991-12-09
Filing date: 1992-12-05
Publication date: 1995-06-28
Anticipated expiration: 2007-12-05
Also published as: CN1077246A; KR930013422A; JPH05248222A; DE9115265U1; JP2500185B2; KR100296458B1

Abstract

To provide a lubricating system adapted to supply lubricating oil individually to each lubricating point arranged for reducing mechanical abrasion of a cylinder of an engine, and to supply lubricating oil easily to a single cylin der only or to the various elements to be lubricated at the lubricating points in a same cylinder. Besides at least one group of lubricating pumps P, P1 supplying lubricating oil to a plurality of lubricating points 28, 29 of each cylinder Z, the main components include a two-pipe dispenser L for metering and dispensing lubricating oil, a progressive dispenser D including the dispenser L, a plurality of lubricating points in each cylinder connected to the progressive dispenser, two pipes 2, 8 leading to the two-pipe dispenser, a counter flow unit U including a control valve 20 arranged across the two pipes, and a lubricating unit E including the unit U.

Description

Device for the lubrication of cylinders

The present invention relates to a kind of device that is used for lubricating oil lubricating engine cylinder.

By the Mannheim area Joseph Vogele DSK1-900-00(1.82 of company) in the disclosed device of " IVOT type centralized lubrication oil pump " this publication, every lubricating point or a pair of lubricating point are provided with a lubricating oil pump in order to lubricated medium duty engine, large-scale diesel engine and compressor.Each lubricating oil pump is assembled in the casing, a mechanical transmission mechanism and wherein also is housed in order to regulate the mechanism of each lubricating oil pump fuel delivery.Each oil circuit directly leads to each lubricating point from casing.On each lubricating point, can establish a safety check and an accumulator.According to the principle of this what is called " box lubriator ", the lubricating oil of all lubricating points is all from same control oil channel, thereby independent branch is oily or adaptive fuel feeding is difficult, and a kind of adaptive fuel feeding according to engine load or partial lubrication requirement is also difficult.Control mechanism is very expensive.Mechanical transmission mechanism is more expensive under the more situation of lubricating point.Regulate, particularly accurate adjustment is very bothersome and require that mechanical structure is had very dark understanding.

The objective of the invention is to the independent fuel feeding of each lubricating point to cylinder.Even lubricated should being suitable for carried out fuel feeding at the requirement of a cylinder only to the different lubricating requirement of same each lubricating point of cylinder.Even this fuel feeding should be adaptive exactly with the requirement separately of each lubricating point of same cylinder according to the requirement of load, also must make in good time phase place in case of necessity and cooperate (the stroke phase place is lubricated).

This purpose of the present invention can reach by following technical measures.

Each lubricating point of each cylinder is supplied with the lubricating oil two-way oil separator of equivalent or inequality then to pointwise oil separator fuel feeding reliably by the pointwise oil separator.The pointwise oil separator can adopt DE-GM8413228 or the described structure of DE-OS3542934.The two-way oil separator is easy to control and can does arbitrary adjusting.Can measure exactly each lubricating point, can not be subjected to the influence of engine speed in case of necessity to a great extent.Can regulate individually according to the different requirements of each lubricating point of the requirement of engine load and a certain cylinder or same cylinder the fuel feeding of two-way oil separator.The supply time of every lubricating point can be done reproducibility adjusting more accurately, thereby can carry out the stroke phase place and lubricate, and the pistons that may have different peripheries are just just lubricated when the arrival lubricating point in its stroke.Arrange individually owing to can break away from fuel feeding unit, just be not difficult to overcome the difficulty of installing pointwise oil separator and two-way oil separator.

In a preferred embodiment, can be lubricated by its requirement individually each cylinder.As be provided with a plurality of two-way oil separators in lubrication unit, then the metered fuel charge to each lubricating point of a certain cylinder also can change with interior on a lubricating point plane individually.Under some better simply situations, lubrication unit also can carry out fuel feeding to more than one cylinder.By each two-way oil separator being done adjusting in various degree, also can carry out fuel feeding individually to each cylinder.

Can make structural simplification by common oil supply unit.Each lubrication unit can break away from oil supply unit to be arranged to go up in position individually.Can temporarily turn-off each lubrication unit, also can regulate separately.

Can carry out separately the different lubricating points plane of cylinder lubricated, and oil supply unit work can not be subjected in case of necessity engine speed and (or) effects of load.Fuel delivery to each lubricating point in a certain lubricating point plane can be selected under the situation of corresponding layout pointwise oil separator individually.Lubrication unit by can according to the speed of motor or cylinder and (or) load carries out adaptive fuel feeding.To mechanically ask not high.Every lubrication unit can have one or several independent control oil channel, and regulating one of them lubrication unit can not influence other lubrication unit.

Two-position four-way separating valve small-sized that is used for another embodiment, stable performance, can make fuel feeding be not subjected to speed and (or) effects of load and obtain in good time control, simultaneously, can carry out the metering of lubricating oil independently by the two-way oil separator.Can break away under the situation of oil supply unit the adjusting that in other lubrication units operation that is connected same oil supply unit, can measure a lubrication unit by commutator at lubrication unit.

In another embodiment, can carry out comprehensive manually-operable under the situation of power supply trouble or operate taking place by an assisting agency.

Even under the situation of outage, also can controlledly carry out emergency operation or adopt another kind of mode of operation.

In another embodiment, flow dontroller can make operation controlled, and can be carried out in accordance with regulations adjusting.

Lubrication unit and assembly thereof can be prefabricated and be easy to change.Each assembly can be assembled in very limited space.Owing in oil dividing plate, be provided with path, do not need expensive pipeline.

In another embodiment, the Security of operation is improved.When a lubricant pump damaged, another lubricating oil pump can be taken over fuel feeding.The compact structure of oil supply unit.Lubricating point to all connections can be regulated on the valve group so that its correct fuel feeding.

In another embodiment, the pressure of pressure-limit valve restriction system, and safe functioning is provided.When not consuming lubricating oil, pressure-limit valve is emitted the lubricating oil of being supplied with by pump, and when in a single day requirement amount improved, the pressure-limit valve blocking-up was drained the oil.

Impurity can filtering in filter.Pressure meter demonstrates the contamination degree of filter by pressure reduction, and pressure transmission switch illustrates the fault of filter or the limit degree of contamination.

In another embodiment, malfunctioning or when stopping up, lubrication unit obtains fuel feeding by bypass at filter, the bias check valve of selecting for use makes a certain amount of lubricating oil by filter, in proper functioning even make whole lubricating oil pass through filter.

Available bypass is carried out cross-over connection with cleaning and replacing filter to filter.Safety check makes working connection keep passive state when changing filter.

When accumulator makes lubricating point unlikely can not get fully when lubricated when the lubricating oil requirement amount increases for the moment, the Safety performance of operation accesses further raising.The demonstration of accumulator internal pressure is convenient to further control, correctly to regulate the lubricating oil amount that work is supplied with by oil supply unit.

Can measure by one or two adjusting screw the lubricating oil of supplying with the pointwise oil separator.Just can change metered capacity by the end position that changes metering piston.

The lubricating oil metering can draw by rotating one or two adjusting screw.Can make three kinds of different meterings adjustings by two adjusting screw that constitute the commutation screw.

The short stroke of metering piston can be set up with the end of the adjusting screw that has shaft-like extending body, and maximum stroke and maximum fuel delivery are to select by stop surface recessed on the end that has recess.

Can adopt removable adjusting screw to make the size of two-way oil separator compacter.Can draw three kinds of different meterings adjustings by three adjusting screw that are used for two-way oil separator one side.Adjusting screw is placed on the lubrication unit nearby so that take, and for example is placed in the support of oil dividing plate or on the corresponding two-way oil separator.Measure modulation serially, for example: can carry out modulation by different depth ground precession adjusting screw or by unloading the length-adjustable metering piston in back.

Now various embodiments of the present invention are described by accompanying drawing.

Fig. 1 is the circuit block-diagram of a motor or compresser cylinder lubricating fitting.

Fig. 2 is the profile perspective of a cylinder head.

Fig. 3 is the top view of lubricating fitting oil supply unit.

Fig. 4 is the top view of lubricating fitting lubrication unit shown in Figure 1.

Fig. 5,6 is the sectional arrangement drawing of two specific embodiments.

Motor M shown in Figure 1 can be a medium duty engine M, large-scale diesel engine or compressor.This motor has the device S of lubricated each cylinder Z, is shown with two sections that are positioned on lubricating point plane I, the II of a cylinder among each cylinder Z on the right side of Fig. 1.But this two section also can be a certain corresponding section with cylinder Z of lubricating point plane I, II of motor M.

Lubricating fitting S has an oil supply unit V who is connected with a lubrication unit E, and wherein, a pointwise divides oily cells D to have two pointwise oil separator D1, D2 that connect from oil circuit 24,25.Each lubricating

oil path

26,27 leads to each

lubricating point

28,29 that is positioned at cylinder Z lubricating point plane I, II successively from each pointwise oil separator D1 or D2.

In oil supply unit V, two lubricating oil pump P, P1 are contained on the base plate 1 abreast.Lubricating oil pump P, P1 are respectively by motor M1, M2 transmission.Also can be as shown in phantom in FIG. by this two lubricating oil pump of the direct transmission of motor M P, P1, lubricating oil pump P, P1 are connected with a working connection 2, and this working connection passes oil supply unit V and is connected with lubrication unit E by a middle oil circuit 2a.Some identical or different lubrication units can be connected on the downstream of above-mentioned lubrication unit, are used for other cylinders or other lubricating point planes.

One valve group 3 is contained on the base plate 1 or on the oil supply unit V, preferably disposes an oil dividing plate, and oil dividing plate has the dress required path of each constituent element thereon.Be respectively equipped with safety check 4,5 in the downstream of lubricating oil pump P, P1, in order to anti-backflow.One oil circuit, 8 cross-over connection valve groups 3 and directly lead to lubrication unit E.One first pressure-limit valve 6 capable of reversing is contained in the valve group 3 one as safety valve and leads to the oil circuit 7 of oil circuit 8 from working connection 2 in valve group 3.In the upstream that connects oil circuit 2a, one second Adjustable pressure limiting valve 9 also is contained in one as safety valve and leads in the oil circuit 7 of oil circuit 8.One filter 10, is housed in the working connection of valve group 3 is with a manometric pressure transmission switch 12 to be contained in its bypass 11.One has the bypass 13 cross-over connection filters 10 of a bias check valve 14.Block at filter 10 and maybe need strengthen when lubricated, safety check 14 open and lubricant oil by bypass 13 filter 10 of flowing through.One short circuit oil circuit 15 is connected across in the bypass 13, and this short circuit oil circuit breaks away from working connection 2 and enters a three-way valve 16, and enters working connection 2 in the downstream of another safety check 17.In addition, an accumulator 18 and one second pressure meter 19 are contained in the upstream of second pressure-limit valve 9.

Short circuit oil circuit 15 is generally by three-way valve 16 blocking-up.When need are changed or are repaired filter 10, with regard to the crossover tee valve.

Commutator U comprises the position control valve W that is contained in the lubrication unit E on the oil dividing plate 20, and for example two-position four-way valve 21, and this oil dividing plate has the two-way that lubricating oil inner gateway and has two two-way oil separator L1, L2 and divides oily device L and optical-flow controller A.Two-position four-way valve 21 has an operated by magnetic force device 23 and a backspring 22.Two two-way oil separator L1, L2 are connected in parallel on working connection 2 and oil circuit 8.Its

output circuit

24,25 leads to pointwise oil separator D1, D2 via optics or photoelectric current amount controller A.Two-position four-way valve 21 configurable one is contained in emergency operation device or another the other operator that connects in the independent control loop.

Position control valve W can be connected on the engine controller C by a control oil channel 50, this engine controller C according to the rotating speed of motor M and (or) load control position control valve W.When each commutation, each two-way oil separator L1, L2 are respectively to pointwise oil separator D1, lubricating oil amount that the D2 feed is certain, more respectively to a certain amount of lubricating oil of each lubricating

point

28,29 dispensing.

As shown in Figure 2, cylinder Z can establish some lubricating points 28 on the I of lubricated plane on the cylinder liner 31, and establishes lubricating point 29 on the second lubricating point Planar Mechanism below the additional fluting 32.Can be on each lubricating

point

28,29 safety check, an oil pipe and an accumulator being set respectively.But, but to each

lubricating point

28,29 also DFF Direct Fuel Feed.Under each pulse of a two-way oil separator L1, L2, can satisfy the requirement of each lubricating point by the oil mass of pointwise oil separator D1, D2 feed.Lubricated frequency is regulated by position control valve W.Be connected with its lubrication unit E separately as every cylinder Z, then its lubricated can adjusting separately.But, even in same cylinder Z, to the lubricated adjusting that also can have nothing in common with each other of each lubricating point 28,29.Can be turn-offed relevant lubrication unit E, thereby when under motor operation, changing relevant cylinder liner tube 31, can proceed to lubricate other each cylinders.Required lubricant oil can be some more when the new cylinder liner of break-in one, and this is to solve by certain adjusting.

Fig. 3 is the top view that has the oil supply unit V of two lubricating oil pump P, P1 and valve group 3 shown in Figure 1.Three-way valve 16 has the operating handle that can handle from the outside 33.Pressure-

limit valve

6,9 very easy adjustings nearby.Pressure transmission switch 12 can be connected with a not shown advertiser.

As shown in Figure 4, position control valve W and two two-way oil separator L1, L2 are contained on the oil dividing plate 20 of lubrication unit E, and two flow dontroller A are contained in the oil circuit that is drilled in the oil dividing plate 20 on this oil dividing plate.Preferably select photoelectric current amount controller A for use, this flow dontroller A is connected with a test desk or an advertiser by lead 34.Corresponding more this two-way oil separator can be contained on the oil dividing plate 20 when two identical two-way oil separator L1, L2(adopt two above lubricating point planes in a cylinder) install near position control valve W.The two ends of right side two-way oil separator L2 are shown with adjusting

screw

36,37 in Fig. 4, in order to regulate the lubricating oil amount of supplying with pointwise oil separator D1, D2.

Fig. 5,6 illustrates two embodiments of two-way oil separator L1 or L2.

In two-way oil separator L2 shown in Figure 5, being provided with two ends in a housing 35 has measuring cavity 38, one metering pistons 39 of opening to move around therein.One control chamber 41 is contained in the housing 35 abreast with respect to measuring cavity 38, and a control piston 40 moves around therein.The two ends of measuring cavity 38 are blocked with adjusting

screw

36,37, thereby limit two end positions and the metered capacity of metering piston 39.In Fig. 5, send into pressure medium via the right lower side path that working connection 2 is communicated with by position control valve W.This makes the control piston 40 among Fig. 5 block the lower-left side path that be communicated with oil circuit 8 this moment to moving left to its end position.Meanwhile, control piston 40 is opened the alternate path of a path that is communicated with measuring cavity 38 and from measuring cavity 38 to the middle and lower part path that is communicated with oil circuit 25.The lubricating oil that flows into measuring cavity 38 right parts moves on to its left side end position with metering piston 39, and metering piston makes metered capacity enter oil circuit 25 via adjusting screw 36.Reverse at control valve at first is control piston 40 when mobile, is that metering piston 39 oppositely moves then.

Two

metering screws

36,37 are the commutation screw, that is: this screw all have at its two ends an external thread section 42,42 ', it can be screwed into measuring cavity 38 by thread section.Has a shaft-like extending body 43 in the end that has external thread section 42.Two end positions of metering piston 39, two shaft-like extending bodys 43 thus limit as shown in Figure 5, external thread section 42 ' the other end, a recess 44 has a recessed stop surface 45.One of them adjusting

screw

36 or 37 can oppositely be screwed into or these two

screws

36,37 all can oppositely be screwed into.Oppositely be screwed into as adjusting screw 37, fuel delivery increases the right side end position of metering piston with regard to moving to right.All oppositely be screwed into two all outer moving and the corresponding increase of metered capacity of end position as two adjusting screw 36,37.Oppositely be screwed into adjusting screw and require to reserve certain space, the respective voids that this space just forms between itself and the optical-flow controller A.

Further shorten at need under the situation of lubrication unit E, can in the measuring cavity 38 of two-way oil separator L2 shown in Figure 6, adopt band fixed stop body 47 and non-exchange adjusting screw 46.Like this, photoelectric current amount controller A just can more close two-way oil separator L1, L2 be provided with, and oil dividing plate 20 also just can be corresponding shorter.

When regulating metered capacity, adjusting screw 48C in right side among replaceable Fig. 6.Two adjusting screw 48a, 48b for usefulness are placed in the support 49 of oil dividing plate 20 or directly are placed on the two-way oil separator L2.The shaft-like extended length a of three adjusting screw, b, c have nothing in common with each other as shown in Figure 6.For changing, leave the corresponding operating space at the downside of oil dividing plate 20 shown in Figure 4, its function is seen the illustration to Fig. 5.

Can adopt diverse ways to regulate metered capacity, as tuning the joint screw, adopt length-adjustable regulating piston or change regulating piston by continuous accent.In addition, can also establish a retainer in each adjusting screw, this retainer can be tightened from the outside and limit metering piston relevant terminal position.

Claims

1, a kind of device with lubricating oil lubricating engine cylinder, be particularly suitable for lubricated big-block engine or cylinder of compressor, it is characterized in that: this device has the some lubricating points (28 to each cylinder (Z) at least, 29) lubricating oil pump (P of fuel feeding, P1), each lubricating point of cylinder (28,29) is connected on the pointwise oil separator (D), and this pointwise oil separator (D) has a stacked oily two-way oil separator (L) of joining.

2, by the described device of claim 1, it is characterized in that: each cylinder (Z) has a lubrication unit (E), and this element has at least one two-way oil separator (L in two oil circuits (2,8) that lead to two-way oil separator (L1, L2) and between this two oil circuit ₁, L ₂), at least one pointwise oil separator (D1, D2) and a commutator (U).

3, by claim 1 or 2 described devices, it is characterized in that: each lubrication unit (E) of some cylinders (Z) is connected on the common oil supply unit (V).

4, by the described device of claim 2, it is characterized in that: once each lubricating point plane of lubrication unit (E) (I or II) of the cylinder (Z) with some lubricating points plane (I, II), have at least one two-way oil separator (L1, L2) and at least one pointwise oil separator (D1, D2), thereby make each two-way oil separator (1, L2) be connected abreast on the oil supply unit (V); Oil supply unit (V) and two-way oil separator (L1 is equipped with the commutator (U) that for example is made of a position control valve (W) between L2), this commutator can be connected motor (M) a speed controller and (or) on the load governor (C).

5, by the described device of claim 4, it is characterized in that: commutator (U) is an electronic two-position four-way valve (21) under spring force (22) acting in opposition, is a magnet (23) and/or pressure controller.

6, by the described device of claim 5, it is characterized in that: commutator (U) has an emergency controller, is a manual emergency controller.

7, by the described device of claim 5, it is characterized in that: commutator (U) also has a pneumatic controller and is used for the Pneumatic control circuit of pneumatic controller except that an electric controller.

8, by the described device of claim 2, it is characterized in that: be provided with a photoelectric current amount controller (A) in the downstream of each two-way oil separator (L1, L2).

9, by the described device of claim 2, it is characterized in that: commutator (U), two-way oil separator (L1, L2) and flow dontroller (A) are assembled into lubrication unit (E) by a common oil dividing plate (20).

10, by the described device of claim 3, it is characterized in that: oil supply unit (V) has a main lubricating oil pump (P) and an optional reverse lubricating oil pump (P1) that connects, respectively have one and in one direction the safety check (4,5) and of pump choked flow is had the valve group (3) of a voltage limiter, they all are contained on the common base plate (1).

11, by the described device of claim 10, it is characterized in that: valve group (3) has adjustable upstream pressure-limit valve and downstream pressure-limit valve (6,9) in a working connection (2).

12, by the described device of claim 11, it is characterized in that: have a pressure transmission switch and a manometric filter (10) that is contained in the bypass (11) and be contained between interior two pressure-limit valves (6,9) of working connection (2).

13, by the described device of claim 12, it is characterized in that: one has the filter (10) in bypass (13) the cross-over connection working connection (2) of bias check valve (14) of an anti-backflow.

14, by the described device of claim 13, it is characterized in that: in working connection (2), be provided with one in the downstream of bypass (13) and prevent the safety check (17) in loop; Between first pressure-limit valve (6) and bypass (13), tell a short circuit oil circuit (15) that is connected with working connection (2) in safety check (17) downstream by a three-way valve (16).

15, by the described device of claim 14, it is characterized in that: between the tie point of short circuit oil circuit (15) and working connection (2) and second pressure-limit valve (9), an accumulator (18) and a pressure meter that may be provided with (19) are housed.

16, by the described device of claim 2, it is characterized in that: two-way oil separator (L1, L2) has a metering piston (39) that is contained in the measuring cavity (38), and described metering piston can move between two end positions that limit metered capacities and fuel feeding alternately; Can regulate with being contained in adjusting screw in the measuring cavity (38) (36,37,46,48a, 48b, 48c) this two end position; At least to an end position, preferably two end position available adjustment screws (36,37,48a, 48b, 48c) are carried out modulation selectively.

17, by the described device of claim 16, it is characterized in that: adjusting screw (36,37) is that two ends have the screw capable of reversing at the screw thread (42,42 ') that can be screwed into measuring cavity in varying degrees.

18, by the described device of claim 17, it is characterized in that: an end of adjusting screw (36,37) has a shaft-like extending body (43), and its other end has the recess (44) with a recessed stop surface (45), respectively is used for metering piston (39).

19, by the described device of claim 16, it is characterized in that: on the lubrication unit (E) of each two-way oil separator (L1, L2), have at least one that be screwed on the two-way oil separator (L1, L2) and have an adjusting screw (48c) that is used for the metering piston extending body, also be equipped with and take off the adjusting screw (48a, 48b) that is different from the adjusting screw (48c) that is screwed into for two length changing usefulness.

20, by the described device of claim 19, it is characterized in that: in the oil dividing plate (20) of lubrication unit (E) or on two-way oil separator (L1, L2), be provided with the support (49) that is used for for the adjusting screw of changing (48a, 48b, 48c).