CN204534082U - There is the oil pump of Decompression valves assembly - Google Patents
There is the oil pump of Decompression valves assembly Download PDFInfo
- Publication number
- CN204534082U CN204534082U CN201420783624.0U CN201420783624U CN204534082U CN 204534082 U CN204534082 U CN 204534082U CN 201420783624 U CN201420783624 U CN 201420783624U CN 204534082 U CN204534082 U CN 204534082U
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- CN
- China
- Prior art keywords
- oil pump
- decompression valves
- cover plate
- valves assembly
- assembly according
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of oil pump with Decompression valves assembly, comprise oil pump and Decompression valves assembly, oil pump comprises the oil pump casing with pressure release hydraulic fluid port and the oil pump cover plate for sealing machine oil pump case inner chamber, Decompression valves assembly comprises the relief valve core be arranged between oil pump cover plate and pressure release hydraulic fluid port, therefore, oil pump cover plate is under the prerequisite ensureing oil pump sealing, take into account Decompression valves to install simultaneously, thus reach one multiplex, make Decompression valves layout simultaneously in less space range, improve engine structure compactedness.
Description
Technical field
The utility model relates to oil pump field, specifically a kind of oil pump with Decompression valves assembly.
Background technique
Oil pump is the important composition parts of engine lubrication system, after it act as and machine oil is brought up to certain pressure, be sent on the moving surface of each part of motor forcibly, the installation of oil pump in available engine lubrication system, usual employing bolt-locking oil pump cover plate and oil pump case, therebetween by sealing rubber ring or paper washer, oil pump is sealed, the effect of oil pump cover plate is only the sealing reliability ensureing oil pump, and Decompression valves need take measures separately to install in lubrication system, cause lubrication system amount of parts more and installation procedure complicated, add the manufacturing cost of motor.
Therefore, for overcoming the above problems, need a kind of oil pump cover plate that makes under the prerequisite ensureing oil pump sealing, take into account Decompression valves to install simultaneously, thus reach one multiplex, make Decompression valves layout simultaneously in less space range, improve engine structure compactedness, finally simplify assembly technology, save the oil pump with Decompression valves assembly of product cost.
Model utility content
In view of this, the purpose of this utility model overcomes defect of the prior art, there is provided a kind of oil pump cover plate that makes under the prerequisite ensureing oil pump sealing, take into account Decompression valves to install simultaneously, thus reach one multiplex, make Decompression valves layout simultaneously in less space range, improve engine structure compactedness, finally simplify assembly technology, save the oil pump with Decompression valves assembly of product cost.
The oil pump with Decompression valves assembly of the present utility model, comprise oil pump and Decompression valves assembly, oil pump comprises the oil pump casing with pressure release hydraulic fluid port and the oil pump cover plate for sealing machine oil pump case inner chamber, Decompression valves assembly comprises the relief valve core be arranged between oil pump cover plate and pressure release hydraulic fluid port, the pump such as rotor oil assembly is also provided with and by oil pump cover plate by its closure of openings in oil pump casing, seal ring should be provided with to improve its sealability between oil pump cover plate and oil pump casing, oil pump casing should be provided with the filler opening with its inner space, oil outlet and pressure release hydraulic fluid port, relief valve core is arranged between oil pump cover plate and pressure release hydraulic fluid port, pressure releasing valve core can adopt the valve core structure of existing Decompression valves, and its elasticity is connected on oil pump cover cover plate, therefore, oil pump cover plate is under the prerequisite ensureing oil pump sealing, simultaneously doublely do Decompression valves mounting base, thus reach one multiplex, make Decompression valves layout in less space range simultaneously, improve engine structure compactedness, the installation to Decompression valves is completed while assembling oil pump cover plate, final simplification assembly technology, save product cost,
Further, described oil pump casing sidewall is provided with the Decompression valves fitting seat for installing relief valve core, and this Decompression valves fitting seat for holding relief valve core, and then keeps its mounting structure, when Decompression valves carry out opening or closing motion time, guide spool slides in this Decompression valves fitting seat;
The oil pump with Decompression valves assembly of the present utility model also comprises crankcase cover, oil pump casing is arranged at crankcase cover internal surface and crankcase cover sidewall is provided with the machine oil outlet being communicated with oil pump casing inner chamber, oil pump casing and crankcase cover one-body molded, thus reduce engine component quantity further, and simplify assembly technology, machine oil outlet on crankcase cover with and the oil outlet of oil pump casing be communicated with, make pressure oil export the machine oil import through oil pipe, pressure oil being delivered to cylinder body from machine oil;
Further, described spool comprises Decompression valves steel ball for closed pressure release hydraulic fluid port and the spring that is arranged between this steel ball and oil pump cover plate, when oil pressure in oil pump is lower than setting value, pressure release hydraulic fluid port seals by steel ball under the effect of spring power, after oil pump energy oil pressure is greater than setting value, Decompression valves steel ball will overcome the elastic force of spring, and pressure release hydraulic fluid port is opened, machine oil is flowed out in oil pump casing, thus reduces engine oil pressure;
Further, described Decompression valves fitting seat comprises the arc groove being arranged at oil pump casing outer side wall, described relief valve core is arranged between this arc groove and crankcase cover madial wall, spool can adopt the steel ball coordinated with this arc groove, form the passage holding spool between this arc groove and crankcase cover inwall, therefore, can first spool be installed with in this passage before assembling oil pump cover plate, in fixing oil pump cover plate, realize the assembling of Decompression valves;
Further, described oil pump cover plate is disc and this oil pump cover plate radially extends to form spring seat, this spring seat can be provided with the annular groove for fixing spring, ensure the rigging position of spring, make oil pump cover plate while guarantee seals oil pump casing, take into account the function of spring fitting position, and then realize a multiplex object;
Further, described oil pump also comprises internal rotor, external rotor and machine oil pump shaft, described internal rotor and external rotor are all arranged in oil pump casing and described internal rotor is connected with oil pump shaft drive, internal rotor key or pin are fixed on rotor shaft, directly or indirectly driven by crankshaft gear, internal rotor and external rotor center have certain throw of eccentric, internal rotor drives external rotor rotate in the same direction together thus realize pump oil, rotor-type oil pump has compact structure, boundary dimension is little, lightweight, oil suction degree of vacuum is larger, pump oil mass is large, the advantage that fuel feeding uniformity is good,
Further, described machine oil pump shaft is fixed with drive pin and is in transmission connection by this drive pin and internal rotor, internal rotor end face is provided with the cotter way coordinated with drive pin, for being slidably matched between the pin-and-hole of existing drive pin usually and on machine oil pump shaft, so that drive pin can insert in pin-and-hole smoothly during assembling, but in the assembly process of internal rotor, drive pin is easily deviate from from pin-and-hole, brings inconvenience to installation, therefore, drive pin and machine oil pump shaft are made of one, the risk that drive pin comes off can be avoided;
Further, described machine oil pump shaft is radially provided with pin-and-hole, drive pin is arranged in described pin-and-hole and also and between pin-and-hole forms interference fit, the assembling of machine oil pump shaft and drive pin can be completed before oil pump assembling, ensure that drive pin is relative with between pin-and-hole fixing, turn timing to avoid drive pin in oil pump and come off;
Further, described oil pump shaft drive is connected with this oil pump gear of oil pump gear and is driven by train of gearings by engine crankshaft, thus driving machine operation of oil pump.
The beneficial effects of the utility model are: the oil pump with Decompression valves assembly of the present utility model, relief valve core is arranged between oil pump cover plate and pressure release hydraulic fluid port, pressure releasing valve core can adopt the valve core structure of existing Decompression valves, and its elasticity is connected on oil pump cover cover plate, therefore, oil pump cover plate is under the prerequisite ensureing oil pump sealing, simultaneously doublely do Decompression valves mounting base, thus reach one multiplex, make Decompression valves layout in less space range, improve engine structure compactedness, the installation to Decompression valves is completed while assembling oil pump cover plate, final simplification assembly technology, save product cost.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the connection diagram of machine oil pump shaft of the present utility model and internal rotor.
Embodiment
Fig. 1 is structural representation of the present utility model, as shown in the figure, the oil pump with Decompression valves assembly of the present embodiment, comprise oil pump and Decompression valves assembly, oil pump comprises the oil pump casing 2 with pressure release hydraulic fluid port and the oil pump cover plate 10 for sealing machine oil pump case 2 inner chamber, Decompression valves assembly comprises the relief valve core be arranged between oil pump cover plate 10 and pressure release hydraulic fluid port, the pump such as rotor oil assembly is also provided with and by oil pump cover plate 10 by its closure of openings in oil pump casing 2, seal ring 9 should be provided with to improve its sealability between oil pump cover plate 10 and oil pump casing 2, oil pump casing 2 should be provided with the filler opening with its inner space, oil outlet and pressure release hydraulic fluid port, relief valve core is arranged between oil pump cover plate 10 and pressure release hydraulic fluid port, pressure releasing valve core can adopt the valve core structure of existing Decompression valves, and its elasticity is connected on oil pump cover cover plate, therefore, oil pump cover plate 10 is under the prerequisite ensureing oil pump sealing, simultaneously doublely do Decompression valves mounting base, thus reach one multiplex, make Decompression valves layout in less space range simultaneously, improve engine structure compactedness, the installation to Decompression valves is completed while assembling oil pump cover plate 10, final simplification assembly technology, save product cost.
In the present embodiment, described oil pump casing 2 sidewall is provided with the Decompression valves fitting seat 3 for installing relief valve core, this Decompression valves fitting seat 3 is for holding relief valve core, and then keep its mounting structure, when Decompression valves carry out opening or closing motion time, guide spool slides in this Decompression valves fitting seat 3.
The oil pump with Decompression valves assembly in this present embodiment also comprises crankcase cover 1, oil pump casing 2 is arranged at crankcase cover 1 internal surface and crankcase cover 1 sidewall is provided with the machine oil outlet being communicated with oil pump casing 2 inner chamber, oil pump casing 2 is one-body molded with crankcase cover 1, thus reduce engine component quantity further, and simplify assembly technology, machine oil outlet on crankcase cover 1 with and the oil outlet of oil pump casing 2 be communicated with, make pressure oil export the machine oil import through oil pipe, pressure oil being delivered to cylinder body from machine oil.
In the present embodiment, described Decompression valves fitting seat 3 comprises the arc groove being arranged at oil pump casing 2 outer side wall, described relief valve core is arranged between this arc groove and crankcase cover 1 madial wall, spool can adopt the steel ball 4 coordinated with this arc groove, form the passage holding spool between this arc groove and crankcase cover 1 inwall, therefore, can first spool be installed with in this passage before assembling oil pump cover plate 10, in fixing oil pump cover plate 10, realize the assembling of Decompression valves.
In the present embodiment, described spool comprises Decompression valves steel ball 4 for closed pressure release hydraulic fluid port and the spring 5 that is arranged between this steel ball 4 and oil pump cover plate 10, when oil pressure in oil pump is lower than setting value, pressure release hydraulic fluid port seals by steel ball 4 under the effect of spring 5 elastic force, after oil pump energy oil pressure is greater than setting value, Decompression valves steel ball 4 will overcome the elastic force of spring 5, and pressure release hydraulic fluid port is opened, machine oil is flowed out in oil pump casing 2, thus reduces engine oil pressure.
In the present embodiment, described oil pump cover plate 10 is for disc and this oil pump cover plate 10 radially extends to form spring seat 11, this spring seat 11 can be provided with the annular groove for fixing spring 5, ensure the rigging position of spring 5, make oil pump cover plate 10 while guarantee seals oil pump casing 2, take into account the function of spring 5 installation position, and then realize a multiplex object.
In the present embodiment, described oil pump also comprises internal rotor 7, external rotor 8 and machine oil pump shaft 6, described internal rotor 7 and external rotor 8 are all arranged in oil pump casing 2 and described internal rotor 7 and machine oil pump shaft 6 are in transmission connection, internal rotor 7 key or pin are fixed on rotor shaft, directly or indirectly driven by crankshaft gear, internal rotor 7 and external rotor 8 center have certain throw of eccentric, internal rotor 7 drives external rotor 8 rotate in the same direction together thus realize pump oil, rotor-type oil pump has compact structure, boundary dimension is little, lightweight, oil suction degree of vacuum is larger, pump oil mass is large, the advantage that fuel feeding uniformity is good.
In the present embodiment, described machine oil pump shaft 6 is fixed with drive pin and is in transmission connection by this drive pin and internal rotor 7, internal rotor 7 end face is provided with the cotter way coordinated with drive pin, for being slidably matched between the pin-and-hole of existing drive pin usually and on machine oil pump shaft 6, so that drive pin can insert in pin-and-hole smoothly during assembling, but in the assembly process of internal rotor 7, drive pin is easily deviate from from pin-and-hole, bring inconvenience to installation, therefore, drive pin and machine oil pump shaft 6 are made of one, the risk that drive pin comes off can be avoided.
In the present embodiment, described machine oil pump shaft 6 is radially provided with pin-and-hole, drive pin is arranged in described pin-and-hole and also and between pin-and-hole forms interference fit, the assembling of machine oil pump shaft 6 and drive pin can be completed before oil pump assembling, ensure that drive pin is relative with between pin-and-hole fixing, turn timing to avoid drive pin in oil pump and come off.
In the present embodiment, described machine oil pump shaft 6 is connected with this oil pump gear 12 of oil pump gear 12 and is driven by train of gearings by engine crankshaft, thus driving machine operation of oil pump.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (10)
1. have an oil pump for Decompression valves assembly, it is characterized in that: comprise oil pump and Decompression valves assembly, described oil pump comprises the oil pump casing with pressure release hydraulic fluid port and the oil pump cover plate for sealing machine oil pump case inner chamber; Described Decompression valves assembly comprises the relief valve core be arranged between oil pump cover plate and pressure release hydraulic fluid port.
2. the oil pump with Decompression valves assembly according to claim 1, is characterized in that: described oil pump casing sidewall is provided with the Decompression valves fitting seat for installing relief valve core.
3. the oil pump with Decompression valves assembly according to claim 1, is characterized in that: also comprise crankcase cover, and described oil pump casing is arranged at crankcase cover internal surface and described crankcase cover sidewall is provided with the machine oil outlet being communicated with oil pump casing inner chamber.
4. the oil pump with Decompression valves assembly according to claim 1, is characterized in that: described relief valve core comprises steel ball for closed pressure release hydraulic fluid port and the spring that is arranged between this steel ball and oil pump cover plate.
5. the oil pump with Decompression valves assembly according to claim 2, is characterized in that: described Decompression valves fitting seat comprises the arc groove being arranged at oil pump casing outer side wall, and described relief valve core is arranged between this arc groove and crankcase cover madial wall.
6. the oil pump with Decompression valves assembly according to claim 4, is characterized in that: described oil pump cover plate is disc and this oil pump cover plate radially extends to form spring seat.
7. the oil pump with Decompression valves assembly according to claim 6, it is characterized in that: described oil pump also comprises internal rotor, external rotor and machine oil pump shaft, described internal rotor and external rotor are all arranged in oil pump casing and described internal rotor is connected with oil pump shaft drive.
8. the oil pump with Decompression valves assembly according to claim 7, is characterized in that: described machine oil pump shaft is fixed with drive pin and is in transmission connection by this drive pin and described internal rotor.
9. the oil pump with Decompression valves assembly according to claim 8, is characterized in that: described machine oil pump shaft is radially provided with pin-and-hole, and described drive pin is arranged in described pin-and-hole and also and between pin-and-hole forms interference fit.
10. the oil pump with Decompression valves assembly according to claim 9, is characterized in that: described oil pump shaft drive is connected with oil pump gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420783624.0U CN204534082U (en) | 2014-12-12 | 2014-12-12 | There is the oil pump of Decompression valves assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420783624.0U CN204534082U (en) | 2014-12-12 | 2014-12-12 | There is the oil pump of Decompression valves assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204534082U true CN204534082U (en) | 2015-08-05 |
Family
ID=53748088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420783624.0U Expired - Fee Related CN204534082U (en) | 2014-12-12 | 2014-12-12 | There is the oil pump of Decompression valves assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204534082U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104612780B (en) * | 2014-12-12 | 2018-05-04 | 隆鑫通用动力股份有限公司 | Can pressure release type engine oil supplying assembly |
-
2014
- 2014-12-12 CN CN201420783624.0U patent/CN204534082U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104612780B (en) * | 2014-12-12 | 2018-05-04 | 隆鑫通用动力股份有限公司 | Can pressure release type engine oil supplying assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 Termination date: 20151212 |
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| EXPY | Termination of patent right or utility model |