CN102071985A - Side type engine front end cover oil pump - Google Patents

Side type engine front end cover oil pump Download PDF

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Publication number
CN102071985A
CN102071985A CN 201010582059 CN201010582059A CN102071985A CN 102071985 A CN102071985 A CN 102071985A CN 201010582059 CN201010582059 CN 201010582059 CN 201010582059 A CN201010582059 A CN 201010582059A CN 102071985 A CN102071985 A CN 102071985A
Authority
CN
China
Prior art keywords
pump
rotor
oil pump
cover
gear
Prior art date
Application number
CN 201010582059
Other languages
Chinese (zh)
Inventor
许仲秋
向志奇
Original Assignee
湖南机油泵股份有限公司
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 湖南机油泵股份有限公司 filed Critical 湖南机油泵股份有限公司
Priority to CN 201010582059 priority Critical patent/CN102071985A/en
Publication of CN102071985A publication Critical patent/CN102071985A/en

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Abstract

The invention discloses a side type engine front end cover oil pump. The oil pump comprises a pump body 1 which is arranged on an end cover of a cylinder body of an engine, a pump cover 2, a transmission gear 3, a transmission shaft 4, an outer rotor 5 and an inner rotor 6, wherein the pump body 1 is arranged on one side, which is far away from a crank shaft 7, of the end cover of the cylinder body of the engine; the transmission gear 3 is arranged on the upper part of the transmission shaft 4 and connected with a gear on the crank shaft; the two ends of the transmission shaft 4 are arranged in axle holes of the pump body 1 and the pump cover 2 respectively; and the outer rotor 5 and the inner rotor 6 are arranged in rotor holes of the pump body 1 and the pump cover 2 respectively. During operation, the transmission gear 3 transfers torque of the engine to the oil pump through the gear on the crank shaft. The oil pump is suitable for both a rotor type oil pump and a gear type oil pump. Compared with the prior art, the oil pump has the characteristics of compact structure and high volumetric efficiency, is easy to mount and is safe and reliable; and when the oil pump runs, an inner rotor type line is mutually engaged with an outer rotor type line, so the oil pump is precise and stable, and has low noise and stable pressure and flow of engine oil and the aims of environmental friendliness, emission reduction and noise reduction are fulfilled.

Description

Side putting type motor head lid oil pump

Technical field

The present invention relates to a kind of structure of engine oil pump of internal combustion engine, particularly a kind of side putting type motor head lid oil pump.

Background technique

At present, the motor that larger proportion is arranged is integrated cylinder end caps and rotor-type oil pump from saving the angle of cost, moves by the direct driving machine oil pump of bent axle internal rotor.This technology is used very ripe on the car of little discharge capacity, but on powerful motor, because the moment of torsion that transmits is big, the bent axle gap of beating is big, can produce periodical impulse force in the middle of the operation, crankshaft center is difficult for aliging with the rotor of engine oil pump center when adding the assembling oil pump, causes in the middle of the engine operation process, and inside and outside rotor engaged does not have the accident that the gap produces the rotor cracking.Meanwhile, owing to adopt the bent axle transmission, oil pump all uses cover plate structure, exists the defective of cover plate end face draining, and volumetric efficiency is not high.

Summary of the invention

The objective of the invention is to overcome the above-mentioned deficiency of prior art, and provide a kind of compact structure, installation easily, side putting type motor head safe and reliable, that volumetric efficiency is high to cover oil pump.

Technological scheme of the present invention is: a kind of side putting type motor head lid oil pump, comprise the pump housing, pump cover, transmission shaft, external rotor and the internal rotor that are arranged on the engine cylinder-body end cap, the pump housing is arranged on the engine cylinder-body end cap side away from bent axle, the two ends of transmission shaft are installed in respectively in the axis hole of the pump housing and pump cover, and external rotor and internal rotor are installed in the rotor hole of the pump housing and pump cover.

The further technological scheme of the present invention is: comprise that also driving gear, driving gear are installed in the top of transmission shaft, and connect with gear on the bent axle.

During operation, driving gear by the gear on the bent axle the transmission of torque of motor on oil pump.

The present invention both had been applicable to rotor-type oil pump, also was suitable for gear type oil pump, compared with prior art, had following characteristics:

1, the present invention is owing to adopt the drive mechanism of driving gear, the bent axle gap has been stopped in the gap that driving gear is meshed effectively and operation is beated to the influence of rotor clearance, the impact of having transmitted when having eliminated the bent axle operation, reduced the load of rotor, improve the Security and the stability of internal rotor, avoided the generation of rotor CRACKING ACCIDENT.

2, the present invention is owing to used pump cover, and main shaft is a double supporting structure, has eliminated the defective of a large amount of drainings of cover plate structure oil pump end face, and the volumetric efficiency that has improved oil pump is more than 5%; Simultaneously, the oil pump rotor end-face gap can increase to 0.04-0.10mm and not influence the flow of oil pump, has reduced the dimensional accuracy of the rotor chamber degree of depth and rotor thickness, has saved processing cost.

3, since do not had bent axle to the rotor adverse influence, the back lash of inside and outside rotor can be in the past little direction repair, during the oil pump running, inside and outside molded lines of rotor is meshing with each other steadily accurate, thereby reduced noise, further improve the stability of engine oil pressure and flow, reached the environmental protection purpose that reduces discharging noise reduction.

Below in conjunction with the drawings and specific embodiments detailed structure of the present invention is further described.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the A-A sectional view of Fig. 1.

Embodiment

Shown in Fig. 1-2: a kind of side putting type motor head lid oil pump, it comprises the pump housing 1, pump cover 2, driving gear 3, transmission shaft 4, external rotor 5 and the internal rotor 6 that is arranged on the engine cylinder-body end cap, the pump housing 1 is arranged on the engine cylinder-body end cap side away from bent axle 7, driving gear 3 is installed in the top of transmission shaft 4, and connect with gear on the bent axle, the two ends of transmission shaft 4 are installed in respectively in the axis hole of the pump housing 1 and pump cover 2, and external rotor 5 and internal rotor 6 are installed in the rotor hole of the pump housing 1 and pump cover 2.

During operation, driving gear 3 by the gear on the bent axle the transmission of torque of motor on oil pump.

The present invention is not limited to above-mentioned concrete structure, as long as adopt the end cover of engine oil pump, and the oil pump main body is in bent axle one side, and the structure by the operation of gear transmission oil pump just drops within protection scope of the present invention.

Claims (2)

1. a side putting type motor head covers oil pump, it comprises the pump housing, pump cover, transmission shaft, external rotor and the internal rotor that is arranged on the engine cylinder-body end cap, the two ends of transmission shaft are installed in respectively in the axis hole of the pump housing and pump cover, external rotor and internal rotor are installed in the rotor hole of the pump housing and pump cover, it is characterized in that the pump housing is arranged on the engine cylinder-body end cap side away from bent axle.
2. side putting type motor head according to claim 1 lid oil pump is characterized in that also comprising that driving gear, driving gear are installed in the top of transmission shaft, and connects with gear on the bent axle.
CN 201010582059 2010-11-27 2010-11-27 Side type engine front end cover oil pump CN102071985A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201010582059 CN102071985A (en) 2010-11-27 2010-11-27 Side type engine front end cover oil pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201010582059 CN102071985A (en) 2010-11-27 2010-11-27 Side type engine front end cover oil pump

Publications (1)

Publication Number Publication Date
CN102071985A true CN102071985A (en) 2011-05-25

Family

ID=44030716

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201010582059 CN102071985A (en) 2010-11-27 2010-11-27 Side type engine front end cover oil pump

Country Status (1)

Country Link
CN (1) CN102071985A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020081628A (en) * 2001-04-19 2002-10-30 현대자동차주식회사 Cover for oil pump
CN2606799Y (en) * 2003-03-04 2004-03-17 重庆宗申技术开发研究有限公司 Water cooling type push rod single cylinder four-stroke engine
KR20070090589A (en) * 2006-03-03 2007-09-06 현대자동차주식회사 Oil pump structure
CN201554566U (en) * 2009-11-03 2010-08-18 昆明云内动力股份有限公司 Engine cylinder body of integrated oil pump casing
CN201738961U (en) * 2010-06-30 2011-02-09 长城汽车股份有限公司 Oil pump of transverse diesel engine
CN201891457U (en) * 2010-11-27 2011-07-06 湖南机油泵股份有限公司 Side engine front end cap engine oil pump

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020081628A (en) * 2001-04-19 2002-10-30 현대자동차주식회사 Cover for oil pump
CN2606799Y (en) * 2003-03-04 2004-03-17 重庆宗申技术开发研究有限公司 Water cooling type push rod single cylinder four-stroke engine
KR20070090589A (en) * 2006-03-03 2007-09-06 현대자동차주식회사 Oil pump structure
CN201554566U (en) * 2009-11-03 2010-08-18 昆明云内动力股份有限公司 Engine cylinder body of integrated oil pump casing
CN201738961U (en) * 2010-06-30 2011-02-09 长城汽车股份有限公司 Oil pump of transverse diesel engine
CN201891457U (en) * 2010-11-27 2011-07-06 湖南机油泵股份有限公司 Side engine front end cap engine oil pump

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Application publication date: 20110525