CN204283545U - Having can the crankcase cover of pressure-relief type oil pump - Google Patents
Having can the crankcase cover of pressure-relief type oil pump Download PDFInfo
- Publication number
- CN204283545U CN204283545U CN201420783661.1U CN201420783661U CN204283545U CN 204283545 U CN204283545 U CN 204283545U CN 201420783661 U CN201420783661 U CN 201420783661U CN 204283545 U CN204283545 U CN 204283545U
- Authority
- CN
- China
- Prior art keywords
- oil pump
- crankcase cover
- pressure
- cover plate
- relief type
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses that a kind of have can the crankcase cover of pressure-relief type oil pump, comprise crankcase cover body and the oil pump being fixed on crankcase cover inner body wall, 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, relief valve core is provided with between oil pump cover plate and pressure release hydraulic fluid port, thus make oil pump cover plate 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 crankcase cover structure compactedness.
Description
Technical field
The utility model relates to crankcase cover field, and specifically a kind of have can the crankcase cover of pressure-relief type oil pump.
Background technique
Crankcase cover is the constituent element of cylinder of petrol engine, the oil pump of existing logical machine is arranged at crankcase cover inside usually, oil pump is the important composition parts of gasoline engine lubricating 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, one is needed to have oil pump, oil pump cover plate is under the prerequisite ensureing oil pump sealing simultaneously, take into account simultaneously Decompression valves install, thus reach one multiplex, make Decompression valves layout in less space range simultaneously, improve crankcase cover structure compactedness, finally simplify assembly technology, saving having of product cost can the crankcase cover of pressure-relief type oil pump.
Model utility content
In view of this, the purpose of this utility model overcomes defect of the prior art, one is provided to have oil pump, oil pump cover plate is under the prerequisite ensureing oil pump sealing simultaneously, take into account simultaneously Decompression valves install, thus reach one multiplex, make Decompression valves layout in less space range simultaneously, improve crankcase cover structure compactedness, finally simplify assembly technology, saving having of product cost can the crankcase cover of pressure-relief type oil pump.
It is of the present utility model that have can the crankcase cover of pressure-relief type oil pump, comprise crankcase cover body and the oil pump being fixed on crankcase cover inner body wall, 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, relief valve core is provided with 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 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;
Further, described oil pump casing is with this body by integral forming of crankcase cover and described crankcase cover body sidewall is provided with the machine oil outlet being communicated with oil pump casing inner chamber, oil pump casing can with crankcase cover body together casting, thus reduce engine component quantity, and simplify assembly technology, machine oil outlet on crankcase cover body 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 Decompression valves fitting seat comprises the installation position formed between arc groove and this arc groove and crankcase cover body madial wall for fixing relief valve core being arranged at oil pump casing outer side wall, spool can adopt the steel ball coordinated with this arc groove, the passage holding spool is formed between this arc groove and crankcase cover inwall, therefore, first spool can 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 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, 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 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 described 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, bring 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, described 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 oil pump gear, and this oil pump gear is driven by train of gearings by engine crankshaft, thus driving machine operation of oil pump.
The beneficial effects of the utility model are: of the present utility model have can the crankcase cover of pressure-relief type oil pump, crankcase cover inner body wall is provided with Decompression valves housing and by Decompression valves cover plate for sealing, 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.
Embodiment
Fig. 1 is structural representation of the present utility model, as shown in the figure, having of the present embodiment can the crankcase cover of pressure-relief type oil pump, comprise crankcase cover body 1 and the oil pump being fixed on crankcase cover body 1 inwall, 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, relief valve core is provided with 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.
Further, described oil pump casing 2 is provided with the Decompression valves fitting seat 3 for installing relief valve core, and this Decompression valves fitting seat 3 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 3.
Further, described oil pump casing 2 is one-body molded with crankcase cover body 1 and described crankcase cover body 1 sidewall is provided with the machine oil being communicated with oil pump casing 2 inner chamber exports, oil pump casing 2 can with crankcase cover body 1 together casting, thus reduce engine component quantity, and simplify assembly technology, machine oil outlet on crankcase cover body 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.
Further, described Decompression valves fitting seat 3 comprises the installation position formed between arc groove and this arc groove and crankcase cover body 1 madial wall for fixing relief valve core being arranged at oil pump casing 2 outer side wall, spool can adopt the steel ball 4 coordinated with this arc groove, the passage holding spool is formed between this arc groove and crankcase cover inwall, therefore, first spool can 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.
Further, described relief valve core comprises 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.
Further, 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.
Further, 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.
Further, described machine oil pump shaft 6 is fixed with drive pin and is in transmission connection by this drive pin and described 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.
Further, described machine oil pump shaft 6 is radially provided with pin-and-hole, described 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.
Further, described machine oil pump shaft 6 is connected with oil pump gear 12, and this oil pump gear 12 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. having can the crankcase cover of pressure-relief type oil pump, it is characterized in that: comprise crankcase cover body and be fixed on the oil pump of crankcase cover inner body wall; 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, is provided with relief valve core between described oil pump cover plate and pressure release hydraulic fluid port.
2. according to claim 1 have can the crankcase cover of pressure-relief type oil pump, it is characterized in that: described oil pump casing is provided with the Decompression valves fitting seat for installing relief valve core.
3. according to claim 1 have can the crankcase cover of pressure-relief type oil pump, it is characterized in that: described oil pump casing is with this body by integral forming of crankcase cover and described crankcase cover body sidewall is provided with the machine oil outlet being communicated with oil pump casing inner chamber.
4. according to claim 1 have can the crankcase cover of pressure-relief type oil pump, it 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.
It is 5. according to claim 2 that have can the crankcase cover of pressure-relief type oil pump, it 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. according to claim 4 have can the crankcase cover of pressure-relief type oil pump, it is characterized in that: described oil pump cover plate is disc and this oil pump cover plate radially extends to form spring seat.
It is 7. according to claim 1 that have can the crankcase cover of pressure-relief type oil pump, 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. according to claim 7 have can the crankcase cover of pressure-relief type oil pump, it 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. according to claim 8 have can the crankcase cover of pressure-relief type oil pump, it is characterized in that: described machine oil pump shaft is radially provided with pin-and-hole, and described drive pin to be arranged in described pin-and-hole and and to form interference fit between pin-and-hole.
10. according to claim 9 have can the crankcase cover of pressure-relief type oil pump, it 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 |
|---|---|---|---|
| CN201420783661.1U CN204283545U (en) | 2014-12-12 | 2014-12-12 | Having can the crankcase cover of pressure-relief type oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420783661.1U CN204283545U (en) | 2014-12-12 | 2014-12-12 | Having can the crankcase cover of pressure-relief type oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204283545U true CN204283545U (en) | 2015-04-22 |
Family
ID=52866715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420783661.1U Expired - Fee Related CN204283545U (en) | 2014-12-12 | 2014-12-12 | Having can the crankcase cover of pressure-relief type oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204283545U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500258A (en) * | 2014-12-12 | 2015-04-08 | 隆鑫通用动力股份有限公司 | Crankcase cover with pressure-relievable engine oil supply assembly |
-
2014
- 2014-12-12 CN CN201420783661.1U patent/CN204283545U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500258A (en) * | 2014-12-12 | 2015-04-08 | 隆鑫通用动力股份有限公司 | Crankcase cover with pressure-relievable engine oil supply assembly |
| CN104500258B (en) * | 2014-12-12 | 2020-08-11 | 隆鑫通用动力股份有限公司 | Crankcase cover with pressure-releasing type engine oil supply assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20151212 |
|
| EXPY | Termination of patent right or utility model |