CN201738961U - Oil pump of transverse diesel engine - Google Patents

Oil pump of transverse diesel engine Download PDF

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Publication number
CN201738961U
CN201738961U CN2010202415853U CN201020241585U CN201738961U CN 201738961 U CN201738961 U CN 201738961U CN 2010202415853 U CN2010202415853 U CN 2010202415853U CN 201020241585 U CN201020241585 U CN 201020241585U CN 201738961 U CN201738961 U CN 201738961U
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CN
China
Prior art keywords
pressure
low
cover plate
oil
rotor
Prior art date
Application number
CN2010202415853U
Other languages
Chinese (zh)
Inventor
张春贤
常进才
张军
Original Assignee
长城汽车股份有限公司
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.)
Filing date
Publication date
Application filed by 长城汽车股份有限公司 filed Critical 长城汽车股份有限公司
Priority to CN2010202415853U priority Critical patent/CN201738961U/en
Application granted granted Critical
Publication of CN201738961U publication Critical patent/CN201738961U/en

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Abstract

The utility model relates to an oil pump of a transverse diesel engine, which is used for improving the performance of the oil pump and reducing the cost thereof. The utility model has the technical scheme that the oil pump is a rotor pump which comprises a shell, a cover plate, a driving shaft, an inner rotor, an outer rotor, a pressure-limiting valve and a transmission gear, wherein the inner rotor and the outer rotor are located in a cavity body between the cover plate and the shell; a high-pressure cavity, a low-pressure cavity, a low-pressure oil duct connecting the low-pressure cavity with an oil pan and a high-pressure oil duct which connects the high-pressure cavity with the main oil duct of a cylinder body are arranged in the shell; the pressure-limiting valve is arranged between the high-pressure cavity and the low-pressure cavity; one end of the driving shaft is connected with the inner rotor, and the other end thereof is fixedly connected with the transmission gear after passing through the cover plate; and the transmission gear is engaged with the helical gear of the front end of an engine crankshaft. The utility model has compact structure, convenient layout, good manufacturability, low processing cost and reliable performance and is especially suitable for the transverse diesel engine.

Description

A kind of oil pump of horizontal diesel engine

Technical field

The utility model relates to the oil pump of the horizontal diesel engine of a kind of 4D20 of being used for, and belongs to technical field of engines.

Background technique

The 4D20 diesel engine comprises horizontal and vertical two type of putting, originally develop design in line with the general as far as possible principle of component, two type has adopted with a kind of oil pump, but because complete machine spatial arrangement form difference, existing indulging put oil pump and is not suitable for horizontal diesel engine, the concrete problem that exists mainly contain following some: at first, oil pump is by conventional gear and bent axle engagement, and it is bigger to move noise.Secondly, the housing internal oil channel is arranged unreasonable, causes the housing can not die casting, and manufacturability is poor, and volume is big, brings difficulty to layout.In addition, the oil pump cover plate complex structure, the driving shaft and the cover plate rate of wear are fast, and working life is short.Therefore, the oil pump used to this horizontal diesel engine redesigns, and is the present problems that face of relevant technologies personnel.

The model utility content

The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of oil pump of horizontal diesel engine of rational in infrastructure, function admirable is provided.

The alleged problem of the utility model realizes with following technical proposals:

A kind of oil pump of horizontal diesel engine, it be one by housing, cover plate, driving shaft, internal rotor, external rotor, pressure-limit valve, the rotor pump that helical gear is formed, in internal rotor and the external rotor cavity between cover plate and housing, be provided with hyperbaric chamber in the housing, low-pressure cavity, the low pressure oil duct and the high-pressure oil duct that is connected hyperbaric chamber and cylinder body main oil gallery that connect low-pressure cavity and oil sump, pressure-limit valve is arranged between hyperbaric chamber and the low-pressure cavity, described driving shaft one end is connected with internal rotor, the other end passes the back from cover plate fixedlys connected with driving gear, described driving gear and the engagement of engine crankshaft front end helical gear.

The oil pump of above-mentioned horizontal diesel engine, described high-pressure oil duct constitutes the outer end shutoff of described clear opening by the straight oil duct that connects hyperbaric chamber and the clear opening of outside and communicate with clear opening.

The oil pump of above-mentioned horizontal diesel engine is provided with anti-wearing liner between driving shaft and cover plate.

The oil pump of above-mentioned horizontal diesel engine, the inwall of cover plate be provided with two respectively with hyperbaric chamber and low-pressure cavity corresponding groove.

The utility model adopts driving gear to drive, and makes the oil pump operation more steady, also greatly reduces the running noise of oil pump simultaneously.High-pressure oil duct adopts clear opening to constitute, and is convenient to the die casting of housing, has improved the manufacturability of housing, has reduced the volume of housing.Anti-wearing liner is used for cover sheet and driving shaft, prevents that it from crossing quick-wearing.The cover plate inboard is provided with two grooves, is intended to increase the volume of oil pocket.The utility model compact structure is convenient to arrange, good manufacturability, and processing cost is low, and reliable performance is particularly suitable for using on horizontal diesel engine.

Description of drawings

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is an outline drawing of the present utility model;

Fig. 2 is that A is to view;

Fig. 3 is the B-B sectional view;

Fig. 4 is the structural representation of housing;

Fig. 5 is the C-C sectional view;

Fig. 6 is the cover plate scheme of installation.

Each label is among the figure: 1, housing; 2, cover plate; 3, anti-wearing liner; 4, driving shaft; 5, internal rotor; 6, external rotor; 7, pressure-limit valve; 8, driving gear; 9, filler opening; 10, low-pressure cavity; 11, hyperbaric chamber; 12, straight oil duct; 13, pressure limiting valve pocket; 14, oil outlet; 15, clear opening; 16, groove; 17, low pressure oil duct.

Embodiment

Referring to Fig. 1~Fig. 6, the utility model comprises component such as oil pump housing 1, cover plate 2, anti-wearing liner 3, driving shaft 4, internal rotor 5, external rotor 6, pressure-limit valve 7, driving gear 8.

This oil pump is a helical gear driving driving gear 8 runnings by crankshaft front end, thereby drives 5 rotations of oil pump internal rotor.Adopting helical gear purpose is to reduce noise.Driving gear 8 and internal rotor 5 all are to press-fit by principle of expanding with heat and contract with cold and driving shaft 4.

Filler opening 9, low-pressure cavity 10, hyperbaric chamber 11, high-pressure oil duct, pressure limiting valve pocket 13, oil outlet 14 are arranged on the housing 1.High-pressure oil duct is the runner of high pressure oil, from oil pump hyperbaric chamber 11 to the passage the cylinder body main oil gallery.For the ease of die casting, use a clear opening 15 to realize.

On cover plate 2 and housing 1 junction plane two grooves 16 are arranged, corresponding with low-pressure cavity 10, hyperbaric chamber 11 on the housing respectively, be intended to increase the volume of oil pocket.Cover plate 2 is connected by 4 bolts with housing 1.Because this oil pump is to be driven by a pair of intermeshing helical gear, will produce a kind of axial force, causes the frictional force between oil pump housing 1 and the cover plate 2 bigger.So the material of cover plate 2 is selected gray cast iron, the wear resistance of this kind material, strength ratio casting aluminium material are good.

Because of cover plate 2, driving shaft 4 all are hard materials, thus the anti-wearing liner 3 that on the cover board pressurizes, with the wearing and tearing of effective reduction cover plate 2 and driving shaft 4.

Pressure-limit valve 7 is positioned at hyperbaric chamber 11 and low-pressure cavity 10 next doors, and communicates with hyperbaric chamber 11 and low-pressure cavity 10.

Working principle of the present utility model:

Machine oil enters low-pressure cavity 10 from filler opening 9, enters hyperbaric chamber 11 by low-pressure cavity 10, and when pressure reached certain value, machine oil leaked into low-pressure cavity 10 by pressure-limit valve 7 from hyperbaric chamber 11.The needed machine oil of motor enters the cylinder body main oil gallery from oil outlet 14.

Claims (4)

1. the oil pump of a horizontal diesel engine, it is characterized in that, it be one by housing (1), cover plate (2), driving shaft (4), internal rotor (5), external rotor (6), pressure-limit valve (7), the rotor pump that driving gear (8) is formed, internal rotor (5) and external rotor (6) are positioned at the cavity between cover plate (2) and the housing (1), be provided with hyperbaric chamber (11) in the housing (1), low-pressure cavity (10), connect the low pressure oil duct (17) of low-pressure cavity (10) and oil sump and be connected hyperbaric chamber (11) and the high-pressure oil duct of cylinder body main oil gallery, pressure-limit valve (7) is arranged between hyperbaric chamber (11) and the low-pressure cavity (10), described driving shaft (4) one ends are connected with internal rotor (5), the other end passes the back from cover plate (2) fixedlys connected with driving gear (8), described driving gear (8) and the engagement of engine crankshaft front end helical gear.
2. according to the oil pump of the described horizontal diesel engine of claim 1, it is characterized in that, described high-pressure oil duct constitutes the outer end shutoff of described clear opening (15) by connecting hyperbaric chamber (11) with the clear opening (15) of housing (1) outside and the straight oil duct (12) that communicates with clear opening (15).
3. according to the oil pump of the described horizontal diesel engine of claim 2, it is characterized in that, between driving shaft (4) and cover plate (2), be provided with anti-wearing liner (3).
4. according to the oil pump of the described horizontal diesel engine of claim 3, it is characterized in that, the inwall of cover plate (2) be provided with two respectively with hyperbaric chamber (11) and low-pressure cavity (10) corresponding groove (16).
CN2010202415853U 2010-06-30 2010-06-30 Oil pump of transverse diesel engine CN201738961U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010202415853U CN201738961U (en) 2010-06-30 2010-06-30 Oil pump of transverse diesel engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010202415853U CN201738961U (en) 2010-06-30 2010-06-30 Oil pump of transverse diesel engine

Publications (1)

Publication Number Publication Date
CN201738961U true CN201738961U (en) 2011-02-09

Family

ID=43554239

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010202415853U CN201738961U (en) 2010-06-30 2010-06-30 Oil pump of transverse diesel engine

Country Status (1)

Country Link
CN (1) CN201738961U (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102071985A (en) * 2010-11-27 2011-05-25 湖南机油泵股份有限公司 Side type engine front end cover oil pump
CN102644840A (en) * 2012-05-14 2012-08-22 浙江科博达工业有限公司 Prelubricated oil pump of diesel engine
CN102877911A (en) * 2012-09-28 2013-01-16 重庆长安汽车股份有限公司 Integrated oil pump assembly
CN103939173A (en) * 2014-04-14 2014-07-23 奇瑞汽车股份有限公司 Oil pump for engine
US9512837B2 (en) 2012-03-29 2016-12-06 Shenzhen Byd Auto R&D Company Limited Oil pump, engine cover and engine comprising the same
US9752472B2 (en) 2012-03-29 2017-09-05 Shenzhen Byd Auto R&D Company Limited Oil pump, engine cover and engine comprising the same
US9869313B2 (en) 2012-03-29 2018-01-16 Shenzhen Byd Auto R&D Company Limtied Oil pump, engine cover and engine comprising the same

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102071985A (en) * 2010-11-27 2011-05-25 湖南机油泵股份有限公司 Side type engine front end cover oil pump
US9869313B2 (en) 2012-03-29 2018-01-16 Shenzhen Byd Auto R&D Company Limtied Oil pump, engine cover and engine comprising the same
US9512837B2 (en) 2012-03-29 2016-12-06 Shenzhen Byd Auto R&D Company Limited Oil pump, engine cover and engine comprising the same
US9752472B2 (en) 2012-03-29 2017-09-05 Shenzhen Byd Auto R&D Company Limited Oil pump, engine cover and engine comprising the same
CN102644840A (en) * 2012-05-14 2012-08-22 浙江科博达工业有限公司 Prelubricated oil pump of diesel engine
CN102877911A (en) * 2012-09-28 2013-01-16 重庆长安汽车股份有限公司 Integrated oil pump assembly
CN102877911B (en) * 2012-09-28 2016-02-03 重庆长安汽车股份有限公司 A kind of integrated form engine oil pump assembly
CN103939173A (en) * 2014-04-14 2014-07-23 奇瑞汽车股份有限公司 Oil pump for engine

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