CN201047295Y - Vehicle engine oil pump suitable for four-cylinder engine - Google Patents
Vehicle engine oil pump suitable for four-cylinder engine Download PDFInfo
- Publication number
- CN201047295Y CN201047295Y CNU2007200380256U CN200720038025U CN201047295Y CN 201047295 Y CN201047295 Y CN 201047295Y CN U2007200380256 U CNU2007200380256 U CN U2007200380256U CN 200720038025 U CN200720038025 U CN 200720038025U CN 201047295 Y CN201047295 Y CN 201047295Y
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- oil pump
- pressure
- machine oil
- pressure limited
- limited valve
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- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
An oil pump of a vehicle that is suitable for a four cylinder engine comprises a crankshaft anterior oil seal, a shell of the oil pump, an oil pump body, an active rotor, a passive rotor and a pressure limited valve. The pressure limited valve comprises a pressure limited valve body, a spring and a plug and the crankshaft anterior oil seal is arranged in the oil sealing hole of the shell of the oil pump which is provided with a pressure limited valve hole which is internally fixed with a pressure limited valve bush. The pressure limited valve body is arranged in the pressure limited valve bush which is arranged in the pressure limited valve hole and the bush is matched with the pressure limited valve. The pressure limited valve hole can be separately processed before being arrangement and the processing difficulty is low, so the high precision processing difficulty of the pressure limited valve hole is avoided and the problem that the aluminum-made oil pump shell does not resist abrasion is solved. The hidden troubles of oil pressure fluctuation and deadlocking of the valve caused by the pressure limited valve are eliminated, thus the processing difficulty of the oil pump is reduced and the service life of the oil pump is improved without increasing cost.
Description
Technical field
The utility model relates to a kind of lubricating pump of automobile, particularly a kind of lubricating pump of automobile that is applicable to four cylinder engine.
Background technique
Lubricating pump of automobile is the vital part of motor, and it is located by the screw on the pump housing boss and engine cylinder-body, and the lubrication system of whole motor is had material impact.At present, the used engine oil pump of car is formed and is generally included: bent axle Front oil seal, machine oil pump case, oil pump body, powder metallurgy rotor (power rotor, passive rotor), and the pressure-limit valve that is made of spring, nut, pressure limiting valve body etc.Machine oil pump case, a pair of powder metallurgy rotor of oil pump body double team constitute Oil sucking device, and place pressure-limit valve between the high low pressure oil pocket, by the valve body oil sealing, and the ultimate pressure of spring and nut control hyperbaric chamber (being engine oil path).This kind oil pump is simple in structure, and its major defect has:
1, the pressure limiting valve body is to cooperate with the aluminum pump case usually, quality of fit is had relatively high expectations, and mating part is darker apart from the aperture, though can process by modes such as roll extrusion, but aluminum pump case difficulty of processing is bigger, and quality can't guarantee that the aluminum pump case is softer in addition, being prone to wearing and tearing and causing cooperating actual effect, causing phenomenons such as pressure fluctuation or pressure-limit valve be stuck;
2, there is not positioning design between power rotor and the oil pump housing, need rely on during use with guaranteeing position cooperating of engine crankshaft and concern with driven gear, be not easy to the assembling of motor, influence the position degree between the active and passive rotor simultaneously, easily cause the inordinate wear of rotor, cause engine abnormal noise simultaneously;
3, oil pump is for dividing body structure, and junction plane adopts plane sealing, because the oil pump internal pressure is higher, is prone to the oil impregnate phenomenon at junction plane.
Summary of the invention
Technical problem to be solved in the utility model is, overcomes the shortcoming of prior art, and a kind of lubricating pump of automobile that is applicable to four cylinder engine is provided.
The technological scheme that its technical problem that solves the utility model adopts is as follows: a kind of lubricating pump of automobile that is applicable to four cylinder engine, its composition comprises: bent axle Front oil seal, machine oil pump case, oil pump body, power rotor, passive rotor, pressure-limit valve, described pressure-limit valve comprises: pressure limiting valve body, spring, plug screw, described bent axle Front oil seal is installed in the oil sealing hole of machine oil pump case, the machine oil pump case has the pressure limiting valve opening, it is characterized in that: the pressure limiting valve opening internal fixation limited valve lining of described machine oil pump case, the pressure limiting valve body is installed in this pressure-limit valve lining.
The aforesaid lubricating pump of automobile that is applicable to four cylinder engine, described power rotor have the boss cylindrical that cooperates, locatees with described oil pump body;
The aforesaid lubricating pump of automobile that is applicable to four cylinder engine, the pressure-limit valve lining that is positioned at machine oil pump case pressure-limit valve hole is fixed with the machine oil pump case by the end face riveted joint;
The aforesaid lubricating pump of automobile that is applicable to four cylinder engine is embedded with seal ring between described machine oil pump case and the oil pump body;
The aforesaid lubricating pump of automobile that is applicable to four cylinder engine, the edge contour unanimity of described machine oil pump case, oil pump body, machine oil pump case, oil pump body have corresponding mounting hole, and realize the location by locating stud.
The beneficial effects of the utility model are as follows: the pressure-limit valve lining is installed in the pressure limiting valve opening, this lining cooperates with pressure-limit valve, can process separately before packing into, difficulty of processing is low, has avoided the high-precision processing difficulty of pressure limiting valve opening, has solved the not wear-resisting problem of aluminum oil pump case, eliminated by hidden danger such as the caused pressure fluctuation of pressure-limit valve, valve body be stuck, when not increasing excessive cost, reduced the difficulty of processing of oil pump, improved the working life of oil pump; Be processed with the boss cylindrical on the power rotor, be used for locating with oil pump body, improvement by self structure has guaranteed the position degree between the active and passive rotor, reduced the inordinate wear of rotor, simplified and the cooperating of engine crankshaft, reduce the engine abnormal noise generation probability that causes by gear wear, also reduced the difficulty of motor fitting machine oil pump simultaneously; Concrete shape and pressure distribution according to oil pocket in the oil pump, on oil pump body, be processed with the molded sealing ring groove, be used to install the shaping seal ring, extruding by oil pump body, formation when the machine oil pump case is synthetic, make seal ring reach seal action, so this oil pump has plane sealing, seal ring sealing double seal, thereby guarantee the sealing of junction plane, stopped the oil impregnate phenomenon.
Description of drawings
Fig. 1 is applicable to the sectional view of the lubricating pump of automobile of four cylinder engine for the utility model.
Fig. 2 is applicable to the pressure-limit valve phantom of the lubricating pump of automobile of four cylinder engine for the utility model.
Embodiment
With reference to the accompanying drawings and in conjunction with the embodiments the utility model is described in further detail.But the utility model is not limited to given example.
As Fig. 1, shown in Figure 2, the utility model is applicable to the lubricating pump of automobile of four cylinder engine, its composition comprises: bent axle Front oil seal 1, machine oil pump case 2, oil pump body 3, power rotor 4, passive rotor 5, pressure-limit valve, described pressure-limit valve comprises: pressure limiting valve body 61, spring 62, plug screw 63, described bent axle Front oil seal 1 is installed in the oil sealing hole 21 of machine oil pump case 2, power rotor 4, passive rotor 5 is installed in the rotor counterbore 31 of oil pump body 3, machine oil pump case 2 has pressure limiting valve opening 22, the pressure limiting valve opening 22 internal fixation limited valve linings 7 of described machine oil pump case 2, material is elected 35 steel as, and pressure limiting valve body 61 is installed in this pressure-limit valve lining 7.As shown in Figure 1, spring 62, plug screw 63 are installed in the pressure limiting valve opening 22, are used for fixing pressure limiting valve body 61, limit the cracking pressure of pressure-limit valve 61 simultaneously.The pressure-limit valve lining 7 that is positioned at machine oil pump case 2 pressure limiting valve openings 22 is fixing with machine oil pump case 2 by the end face riveted joint.
Among the embodiment as shown in Figure 1, power rotor 4 has the boss cylindrical 41 that cooperates, locatees with described oil pump body 3, problem at the oil pump abnormal sound, power rotor adopts the boss cylindrical to cooperate with the pump housing, flat body on the bent axle only plays the effect of transmission, adding man-hour, the cylindrical that need only control power rotor gets final product with boss is concentric.
Among the embodiment as shown in Figure 1, be processed with molded sealing ring groove 32 on the oil pump body 3, molded sealing ring 8 is installed in this molded sealing ring groove 32; The edge contour unanimity of machine oil pump case 2, oil pump body 3, machine oil pump case 2, oil pump body 3 have corresponding mounting hole, and realize the location by locating stud, and utilize screw to realize that both is fixing.Can guarantee combining closely of shell, body junction plane like this, simultaneously also guarantee the concentric of positioning round table on oil sealing hole and the oil pump body.
Claims (5)
1. be applicable to the lubricating pump of automobile of four cylinder engine, its composition comprises: bent axle Front oil seal, machine oil pump case, oil pump body, power rotor, passive rotor, pressure-limit valve, described pressure-limit valve comprises: pressure limiting valve body, spring, plug screw, described bent axle Front oil seal is installed in the oil sealing hole of machine oil pump case, the machine oil pump case has the pressure limiting valve opening, it is characterized in that: the pressure limiting valve opening internal fixation limited valve lining of described machine oil pump case, the pressure limiting valve body is installed in this pressure-limit valve lining.
2. the lubricating pump of automobile that is applicable to four cylinder engine according to claim 1 is characterized in that: described power rotor has the boss cylindrical that cooperates, locatees with described oil pump body.
3. the lubricating pump of automobile that is applicable to four cylinder engine according to claim 1 is characterized in that: the pressure-limit valve lining that is positioned at described machine oil pump case pressure-limit valve hole is fixed with the machine oil pump case by the end face riveted joint.
4. the lubricating pump of automobile that is applicable to four cylinder engine according to claim 1 is characterized in that: be embedded with seal ring between described machine oil pump case and the oil pump body.
5. the lubricating pump of automobile that is applicable to four cylinder engine according to claim 1 is characterized in that: the edge contour unanimity of described machine oil pump case, oil pump body, machine oil pump case, oil pump body have corresponding mounting hole, and realize the location by locating stud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200380256U CN201047295Y (en) | 2007-05-28 | 2007-05-28 | Vehicle engine oil pump suitable for four-cylinder engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200380256U CN201047295Y (en) | 2007-05-28 | 2007-05-28 | Vehicle engine oil pump suitable for four-cylinder engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201047295Y true CN201047295Y (en) | 2008-04-16 |
Family
ID=39299877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200380256U Expired - Fee Related CN201047295Y (en) | 2007-05-28 | 2007-05-28 | Vehicle engine oil pump suitable for four-cylinder engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201047295Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111059329A (en) * | 2019-12-30 | 2020-04-24 | 自贡市川力科技股份有限公司 | Oil drain valve of oil pump |
-
2007
- 2007-05-28 CN CNU2007200380256U patent/CN201047295Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111059329A (en) * | 2019-12-30 | 2020-04-24 | 自贡市川力科技股份有限公司 | Oil drain valve of oil pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NANJING DONGHUA AUTOMOBILE EQUIPMENT CO., LTD. Free format text: FORMER OWNER: NANJING NANQI AUTOMOBILE EQUIPMENT CO., LTD. Effective date: 20110422 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 210028 NO. 120, HONGSHAN ROAD, OUTER ZHONGYANGMEN, NANJING CITY, JIANGSU PROVINCE TO: 210028 NO. 120, HONGSHAN ROAD, NANJING CITY, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110422 Address after: 210028 No. 120 Hongshan Road, Jiangsu, Nanjing Patentee after: Nanjing Donghua Auto Equipment Co., Ltd. Address before: 210028 Hongshan Road, central gate, Jiangsu, Nanjing, 120 Patentee before: Nanjing Nanqi Automobile Equipment Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080416 Termination date: 20160528 |