CN104612780A - Decompression type engine oil supplying assembly - Google Patents
Decompression type engine oil supplying assembly Download PDFInfo
- Publication number
- CN104612780A CN104612780A CN201410766465.8A CN201410766465A CN104612780A CN 104612780 A CN104612780 A CN 104612780A CN 201410766465 A CN201410766465 A CN 201410766465A CN 104612780 A CN104612780 A CN 104612780A
- Authority
- CN
- China
- Prior art keywords
- oil pump
- pressure
- engine oil
- type engine
- cover plate
- 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.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/02—Pressure lubrication using lubricating pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/16—Controlling lubricant pressure or quantity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N13/00—Lubricating-pumps
- F16N13/20—Rotary pumps
Abstract
The invention discloses a decompression type engine oil supplying assembly which comprises an engine oil pump and a decompression valve assembly. The engine oil pump comprises an engine oil pump shell provided with a decompression oil port and an engine oil pump cover plate for sealing an inner cavity of the engine oil pump shell, the decompression valve assembly comprises a decompression valve element arranged between the engine oil pump cover plate and the decompression oil port, therefore, on the premise that the engine oil pump cover plate ensures the seal performance of the engine oil pump, installation of the decompression valve is considered at the same time, and one part has multiple applications. Meanwhile, the decompression valve is arranged in a small space range to improve the structural compactness of an engine.
Description
Technical field
The present invention relates to oil pump field, specifically one can pressure-relief type engine oil supplying 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 product cost can pressure-relief type engine oil supplying assembly.
Summary of the invention
In view of this, the object of the invention is to overcome 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 product cost can pressure-relief type engine oil supplying assembly.
Of the present invention can pressure-relief type engine oil supplying 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, 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;
Of the present inventionly also can comprise crankcase cover by pressure-relief type engine oil supplying assembly, 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 invention has the beneficial effects as follows: of the present invention can pressure-relief type engine oil supplying assembly, 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
accompanying drawingthe invention will be further described with embodiment:
fig. 1for structural representation of the present invention
figure;
fig. 2for the assembling of machine oil pump shaft of the present invention and internal rotor is illustrated
figure.
Embodiment
fig. 1for structural representation of the present invention,
as schemedshow, the present embodiment can pressure-relief type engine oil supplying assembly, 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.
Crankcase cover 1 can be also comprised by pressure-relief type engine oil supplying assembly in this present embodiment, 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 technological scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technological scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (10)
1. can a pressure-relief type engine oil supplying 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. according to claim 1 can pressure-relief type engine oil supplying assembly, it is characterized in that: described oil pump casing sidewall is provided with the Decompression valves fitting seat for installing relief valve core.
3. according to claim 1 can pressure-relief type engine oil supplying assembly, it is characterized in that: also comprise crankcase cover, 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. according to claim 1 can pressure-relief type engine oil supplying assembly, 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.
5. according to claim 2 can pressure-relief type engine oil supplying assembly, 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 can pressure-relief type engine oil supplying assembly, it is characterized in that: described oil pump cover plate is disc and this oil pump cover plate radially extends to form spring seat.
7. according to claim 6 can pressure-relief type engine oil supplying assembly, 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 can pressure-relief type engine oil supplying assembly, 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 can pressure-relief type engine oil supplying assembly, it is characterized in that: described machine oil pump shaft is radially provided with pin-and-hole, 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 can pressure-relief type engine oil supplying assembly, 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 |
|---|---|---|---|
| CN201410766465.8A CN104612780B (en) | 2014-12-12 | 2014-12-12 | Can pressure release type engine oil supplying assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410766465.8A CN104612780B (en) | 2014-12-12 | 2014-12-12 | Can pressure release type engine oil supplying assembly |
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| Publication Number | Publication Date |
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| CN104612780A true CN104612780A (en) | 2015-05-13 |
| CN104612780B CN104612780B (en) | 2018-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410766465.8A Active CN104612780B (en) | 2014-12-12 | 2014-12-12 | Can pressure release type engine oil supplying assembly |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106764371A (en) * | 2016-11-29 | 2017-05-31 | 东风朝阳朝柴动力有限公司 | Can adjust automatically engine oil pressure rotor-type oil pump assembly |
| CN110259930A (en) * | 2019-07-18 | 2019-09-20 | 天地科技股份有限公司上海分公司 | The efficient enforced lubricating system of coalcutter with circulation lubricating function |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2828328Y (en) * | 2005-10-14 | 2006-10-18 | 无锡开普动力有限公司 | Lubricating system of engine |
| JP5072719B2 (en) * | 2008-06-05 | 2012-11-14 | 本田技研工業株式会社 | Engine breather equipment |
| CN201326426Y (en) * | 2008-10-22 | 2009-10-14 | 三阳工业股份有限公司 | Oil line system of single oil pump |
| CN201354656Y (en) * | 2008-12-15 | 2009-12-02 | 江门天钇金属工业有限公司 | Engine oil pump gear drive mechanism for motorcycle engine |
| CN103628946B (en) * | 2013-10-24 | 2016-06-29 | 隆鑫通用动力股份有限公司 | Gasoline engine force feed system and gasoline engine thereof |
| CN204534082U (en) * | 2014-12-12 | 2015-08-05 | 隆鑫通用动力股份有限公司 | There is the oil pump of Decompression valves assembly |
-
2014
- 2014-12-12 CN CN201410766465.8A patent/CN104612780B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106764371A (en) * | 2016-11-29 | 2017-05-31 | 东风朝阳朝柴动力有限公司 | Can adjust automatically engine oil pressure rotor-type oil pump assembly |
| CN110259930A (en) * | 2019-07-18 | 2019-09-20 | 天地科技股份有限公司上海分公司 | The efficient enforced lubricating system of coalcutter with circulation lubricating function |
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| Publication number | Publication date |
|---|---|
| CN104612780B (en) | 2018-05-04 |
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