CN102877911A - Integrated oil pump assembly - Google Patents

Integrated oil pump assembly Download PDF

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Publication number
CN102877911A
CN102877911A CN2012103700711A CN201210370071A CN102877911A CN 102877911 A CN102877911 A CN 102877911A CN 2012103700711 A CN2012103700711 A CN 2012103700711A CN 201210370071 A CN201210370071 A CN 201210370071A CN 102877911 A CN102877911 A CN 102877911A
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CN
China
Prior art keywords
oil
oil duct
cover
pump
duct
Prior art date
Application number
CN2012103700711A
Other languages
Chinese (zh)
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CN102877911B (en
Inventor
饶平平
徐勇
徐丽茹
李久林
张�林
Original Assignee
重庆长安汽车股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to CN201210370071.1A priority Critical patent/CN102877911B/en
Publication of CN102877911A publication Critical patent/CN102877911A/en
Application granted granted Critical
Publication of CN102877911B publication Critical patent/CN102877911B/en

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Abstract

The invention relates to an integrated oil pump assembly which comprises a front casing of an engine, an oil pump cover, an inner rotor and an outer rotor. A limit valve mounting hole protruding out and tilting rightward are arranged on the right of the pump cover. The lower left edge of the outside of the front casing is provided with an oil level gauge guide tube mounting hole which protrudes out. The integrated oil pump assembly is compact in structure, and the mounting space of the integrated oil pump assembly in the engine is further reduced. The mounting position of an oil level gauge guide tube is changed, and accordingly interior oil level of the engine can be accurately measured by the oil level gauge guide tube.

Description

A kind of integrated form engine oil pump assembly

Technical field

The present invention relates to a kind of car engine lubrication system, be specifically related to a kind of integrated form engine oil pump assembly.

Background technique

Lubrication system is one of key factor of the normal operation of motor, oil pump is as the core component of lubrication system, it is as making machine oil deliver to the device of engine movement part from oil sump, for the circulation of whole lubrication system running provides power, guarantee that motor moves under the proper lubrication condition, to improve the reliability of motor, Economy and NVH performance, the for example disclosed a kind of engine front housing of CN 101915137A and engine oil pump assembly integrated mechanism, this patent of invention has effectively been simplified the drive system of oil pump, but existing oil pump is existent defect still, as, the pressure-limit valve mounting hole of oil pump all is vertically to be arranged on the oil pump casing, but because the pressure-limit valve mounting hole is longer, causes the layout of whole engine oil pump assembly comparatively difficult, the design of motor total height uprises, and has increased the volume of motor.

In addition, the oil level indicator conduit mounting hole of available engine generally is arranged on the cylinder body of motor, because the thing that arranges on the cylinder body is too many, brought a lot of difficulties for layout and the installation of oil level indicator conduit, and the relative engine motor oil liquid level of the axis of oil level indicator conduit mounting hole tilts excessive, causes oil-level measurement inaccurate.

Therefore, current automobile industry need find solution.

Summary of the invention

The object of the present invention is to provide a kind of integrated form engine oil pump assembly, this engine oil pump assembly compact structure, and then dwindle the installing space of engine oil pump assembly in motor, change simultaneously the mounting point of oil level indicator conduit, so that the oil level indicator conduit can accurately be measured the oil level of engine interior.

A kind of integrated form engine oil pump assembly of the present invention, comprise the front end-cover of motor, the pump cover that is fixedly connected with the lower inner shell wall of front end-cover, front end-cover is fixedly connected with the formation pump chamber with pump cover, also comprise the external rotor that is located at the internal rotor in the pump chamber and is mated, the left part of described pump cover is provided with the first oil duct and filler opening, and this first oil duct bottom communicates with filler opening; The right part of described pump cover is provided with the second oil duct, and this second oil duct and the first oil duct separate by internal rotor, external rotor; The bottom of described pump cover is provided with the 3rd oil duct, and the left part of the 3rd oil duct communicates with the first oil duct, and the oil duct wall by the 3rd oil duct top between the 3rd oil duct and the second oil duct separates; The pressure-limit valve mounting hole that the right part of described pump cover is provided with outside projection and is tilted to the right, be provided with pressure-limit valve, limiting valve spring and plug screw in the described pressure-limit valve mounting hole, the oil duct wall that this pressure-limit valve mounting hole extends to the 3rd oil duct right part links to each other with the second oil duct and separates by pressure-limit valve; The middle part of described pump cover also is provided with through hole;

Described front end-cover is provided with the pump chamber corresponding with through hole, and described internal rotor and external rotor compress by pump cover; Described front end-cover is provided with the 4th oil duct, and the cooperation corresponding with the first oil duct of the 4th oil duct forms oil suction chamber; Described front end-cover is provided with the 5th oil duct, and the 5th oil duct and the second oil duct corresponding matching form oil pocket, are provided with the technique oil duct in described the second oil duct, and this technique oil duct communicates with oil outlet; Also be provided with the 6th oil duct on the front end-cover, the 6th oil duct and the 3rd oil duct corresponding matching form oil back chamber; The center of described through hole, pump chamber and internal rotor is on same axis;

On the outer lower portion left hand edge of described front end-cover, be provided with oil level indicator conduit mounting hole, this oil level indicator conduit mounting hole is projection outwards.

The axis of described oil level indicator conduit mounting hole is vertical with the engine motor oil liquid level.

The present invention has the following advantages:

1) oil pump cover is directly installed on the front end-cover, and the pressure-limit valve mounting hole on the oil pump cover is in tilted layout, effectively reduced the number of spare parts of engine oil pump assembly, reduced the total height of oil pump, so that motor is arranged in car load is easier.

2) oil level indicator conduit mounting hole is located on the front end-cover, oil level indicator conduit mounting hole axis is with after the engine motor oil liquid level is vertical, so that oil level indicator can accurately be measured the oil level of engine interior.

3) so that engine component forms multifunction, miniaturization and lightweight.

Description of drawings

Fig. 1 is exploded perspective view of the present invention (arrow represents the flow direction of machine oil among the figure);

Fig. 2 is the structural representation (arrow represents the flow direction of machine oil among the figure) of pump cover;

Fig. 3 is the partial structurtes schematic diagram (arrow represents the flow direction of machine oil among the figure) of front end-cover;

Fig. 4 is the schematic diagram after pump cover and front end-cover cooperate;

Fig. 5 is the rear view (partial enlarged drawing) of Fig. 4.

Embodiment

The present invention is further elaborated below in conjunction with drawings and Examples:

Referring to Fig. 1 to integrated form engine oil pump assembly shown in Figure 5, it comprises the front end-cover 1 of motor, the pump cover 2 that is fixedly connected with the lower inner shell wall of front end-cover 1, front end-cover 1 is fixedly connected with the formation pump chamber with pump cover 2, also comprises the internal rotor 3 that is located in the pump chamber and the external rotor 4 that is mated;

The left part of described pump cover 2 is provided with the first oil duct 2-1 and filler opening 2-4, and this first oil duct 2-1 bottom is provided with the opening that communicates with filler opening 2-4; The right part of described pump cover 2 is provided with the second oil duct 2-2, and this second oil duct 2-2 and the first oil duct 2-1 separate by internal rotor 3, external rotor 4; The bottom of described pump cover 2 is provided with the 3rd oil duct 2-3, and the left part of the 3rd oil duct 2-3 communicates with the first oil duct 2-1, and the oil duct wall by the 3rd oil duct 2-3 top between the 3rd oil duct 2-3 and the second oil duct 2-2 separates; The pressure-limit valve mounting hole 2-5 that the right part of described pump cover 2 is provided with outside projection and is tilted to the right, be provided with pressure-limit valve 2-7, limiting valve spring 2-8 and plug screw 2-9 in the described pressure-limit valve mounting hole 2-5, the oil duct wall that this pressure-limit valve mounting hole 2-5 extends to the 3rd oil duct 2-3 right part links to each other with the second oil duct 2-2 and separates by pressure-limit valve 2-7; The middle part of described pump cover 2 also is provided with through hole 2-6;

Described front end-cover 1 is provided with the pump chamber corresponding with through hole 2-6, and described internal rotor 3 and external rotor 4 compress by pump cover 2; Described front end-cover 1 is provided with the 4th oil duct 1-1, and the 4th oil duct 1-1 cooperation corresponding with the first oil duct 2-1 forms oil suction chamber; Described front end-cover 1 is provided with the 5th oil duct 1-2, and the 5th oil duct 1-2 and the second oil duct 2-2 corresponding matching form oil pocket, are provided with technique oil duct 1-4 in described the second oil duct 2-2, and this technique oil duct 1-4 communicates with oil outlet 1-5; Also be provided with the 6th oil duct 1-3 on the front end-cover 1, the 6th oil duct 1-3 and the 3rd oil duct 2-3 corresponding matching form oil back chamber; The center of described through hole 2-6, pump chamber and internal rotor 3 is on same axis; On the outer lower portion left hand edge of described front end-cover 1, be provided with oil level indicator conduit mounting hole 1-8, this oil level indicator conduit mounting hole 1-8 is projection outwards, and the axis of described oil level indicator conduit mounting hole 1-8 is vertical with the engine motor oil liquid level.

Working procedure of the present invention is as follows:

As shown in Figure 2, during the motor operation, bent axle rotates, and drives internal rotor by the flat side on the bent axle and rotates, and internal rotor drives external rotor and rotates; In internal rotor and the external rotor rotation process, by the volume between two rotor tooths, machine oil in the oil suction chamber is constantly transported to out oil pocket, produced degree of vacuum owing to having lacked machine oil in the oil suction chamber, under the effect of air pressure, machine oil in the oil sump constantly enters oil suction chamber by sump strainer, filler opening, and the machine oil that goes out in the oil pocket is constantly increasing, therefore, engine oil pressure can constantly raise, machine oil flows in the technique oil duct, flows out from oil outlet to enter in the cylinder body main oil gallery again, satisfies the needs of motor.Rotating speed rising along with motor, go out the interior pressure of oil pocket also along with rising, when the oil pressure that goes out oil pocket the inside reaches certain value, thereby the pressure of oil overcomes the elastic force of limiting valve spring promotes pressure-limit valve, pressure-limit valve moves to certain position, just produced a little passage in the middle of the 3rd oil duct and the second oil duct, then going out oil pocket and oil back chamber is communicated with, a high pressure oil part that goes out in the oil pocket just leaks in the oil back chamber, machine oil can be got back in the oil suction chamber from oil back chamber again, during pressure decreased in going out oil pocket, the elastic force of limiting valve spring promotes pressure-limit valve with pathway closure, has so just effectively controlled oil pump and has gone out the interior oil pressure of oil pocket, thereby controlled the oil pressure of whole engine lubrication system, so that engine performance is stable, economical reliable.

And oil level indicator will pass the oil mass that oil level indicator conduit mounting hole is measured machine oil in the motor.

Claims (2)

1. integrated form engine oil pump assembly, comprise the front end-cover (1) of motor, the pump cover (2) that is fixedly connected with the lower inner shell wall of front end-cover (1), front end-cover (1) is fixedly connected with the formation pump chamber with pump cover (2), also comprise the internal rotor (3) that is located in the pump chamber and the external rotor (4) that is mated, it is characterized in that:
The left part of described pump cover (2) is provided with the first oil duct (2-1) and filler opening (2-4), and this first oil duct (2-1) bottom communicates with filler opening (2-4); The right part of described pump cover (2) is provided with the second oil duct (2-2), and this second oil duct (2-2) separates by internal rotor (3), external rotor (4) with the first oil duct (2-1); The bottom of described pump cover (2) is provided with the 3rd oil duct (2-3), and the left part of the 3rd oil duct (2-3) communicates with the first oil duct (2-1), and the oil duct wall by the 3rd oil duct (2-3) top between the 3rd oil duct (2-3) and the second oil duct (2-2) separates; The pressure-limit valve mounting hole (2-5) that the right part of described pump cover (2) is provided with outside projection and is tilted to the right, be provided with pressure-limit valve (2-7), limiting valve spring (2-8) and plug screw (2-9) in the described pressure-limit valve mounting hole (2-5), the oil duct wall that this pressure-limit valve mounting hole (2-5) extends to the 3rd oil duct (2-3) right part links to each other with the second oil duct (2-2) and separates by pressure-limit valve (2-7); The middle part of described pump cover (2) also is provided with through hole (2-6).
Described front end-cover (1) is provided with the pump chamber corresponding with through hole (2-6), and described internal rotor (3) and external rotor (4) compress by pump cover (2); Described front end-cover (1) is provided with the 4th oil duct (1-1), and the 4th oil duct (1-1) cooperation corresponding with the first oil duct (2-1) forms oil suction chamber; Described front end-cover (1) is provided with the 5th oil duct (1-2), the 5th oil duct (1-2) forms oil pocket with the second oil duct (2-2) corresponding matching, be provided with technique oil duct (1-4) in described the second oil duct (2-2), this technique oil duct (1-4) communicates with oil outlet (1-5); Also be provided with the 6th oil duct (1-3) on the front end-cover (1), the 6th oil duct (1-3) forms oil back chamber with the 3rd oil duct (2-3) corresponding matching; The center of described through hole (2-6), pump chamber and internal rotor (3) is on same axis;
On the outer lower portion left hand edge of described front end-cover (1), be provided with oil level indicator conduit mounting hole (1-8), this oil level indicator conduit mounting hole (1-8) is projection outwards.
2. a kind of integrated form engine oil pump assembly according to claim 1, it is characterized in that: the axis of described oil level indicator conduit mounting hole (1-8) is vertical with the engine motor oil liquid level.
CN201210370071.1A 2012-09-28 2012-09-28 A kind of integrated form engine oil pump assembly CN102877911B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210370071.1A CN102877911B (en) 2012-09-28 2012-09-28 A kind of integrated form engine oil pump assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210370071.1A CN102877911B (en) 2012-09-28 2012-09-28 A kind of integrated form engine oil pump assembly

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CN102877911A true CN102877911A (en) 2013-01-16
CN102877911B CN102877911B (en) 2016-02-03

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103196025A (en) * 2013-04-03 2013-07-10 中国兵器工业集团第七0研究所 Integrated oil pump of diesel engine
CN108223044A (en) * 2017-12-08 2018-06-29 中国北方发动机研究所(天津) A kind of lubricating oil pump oil inlet and oil return structure

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5790496A (en) * 1980-11-27 1982-06-05 Sanshin Ind Co Ltd Separated lubricating device of outboard engine
CN2532243Y (en) * 2002-03-18 2003-01-22 财团法人工业技术研究院 Engine and lubricant pump positioning device
CN101113732A (en) * 2006-07-30 2008-01-30 王尔耕 Engine oil pump of diesel engine
CN101191444A (en) * 2006-12-01 2008-06-04 上海比亚迪有限公司 Internal combustion engine front cover
CN201738961U (en) * 2010-06-30 2011-02-09 长城汽车股份有限公司 Oil pump of transverse diesel engine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5790496A (en) * 1980-11-27 1982-06-05 Sanshin Ind Co Ltd Separated lubricating device of outboard engine
CN2532243Y (en) * 2002-03-18 2003-01-22 财团法人工业技术研究院 Engine and lubricant pump positioning device
CN101113732A (en) * 2006-07-30 2008-01-30 王尔耕 Engine oil pump of diesel engine
CN101191444A (en) * 2006-12-01 2008-06-04 上海比亚迪有限公司 Internal combustion engine front cover
CN201738961U (en) * 2010-06-30 2011-02-09 长城汽车股份有限公司 Oil pump of transverse diesel engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103196025A (en) * 2013-04-03 2013-07-10 中国兵器工业集团第七0研究所 Integrated oil pump of diesel engine
CN108223044A (en) * 2017-12-08 2018-06-29 中国北方发动机研究所(天津) A kind of lubricating oil pump oil inlet and oil return structure

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