CN201892018U - Reflux pressure limiting rotor oil pump - Google Patents
Reflux pressure limiting rotor oil pump Download PDFInfo
- Publication number
- CN201892018U CN201892018U CN2010206229581U CN201020622958U CN201892018U CN 201892018 U CN201892018 U CN 201892018U CN 2010206229581 U CN2010206229581 U CN 2010206229581U CN 201020622958 U CN201020622958 U CN 201020622958U CN 201892018 U CN201892018 U CN 201892018U
- Authority
- CN
- China
- Prior art keywords
- pressure limiting
- oil
- hole
- pump
- pressure
- Prior art date
Links
- 239000003921 oils Substances 0.000 title claims abstract description 77
- 238000004642 transportation engineering Methods 0.000 claims abstract description 21
- 239000010705 motor oils Substances 0.000 claims abstract description 19
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 2
- 230000001050 lubricating Effects 0.000 abstract 1
- 230000002035 prolonged Effects 0.000 abstract 1
- 239000011148 porous materials Substances 0.000 description 12
- 230000001105 regulatory Effects 0.000 description 2
- 238000010586 diagrams Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 methods Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reactions Methods 0.000 description 1
Abstract
Description
Technical field
The utility model relates to a kind of rotor engine oil pump, particularly a kind of backflow pressure limiting rotor engine oil pump.
Background technique
Engine oil pressure in existing oil pump and the oil duct is regulated, for the external pressure-limit valve is outwards drained voltage regulating mode.Its deficiency is: useful horsepower and Economy that motor has mainly been wasted in outside oil extraction.
Summary of the invention
Technical problem to be solved in the utility model is the deficiency that overcomes on the prior art, and a kind of energy-saving and cost-reducing, advanced rational backflow pressure limiting rotor engine oil pump of structure is provided, be used Security, reliability and the working life that can improve oil pump and oil duct system with the damping oilhole.
Technical problem to be solved in the utility model can be achieved through the following technical solutions:
A kind of backflow pressure limiting rotor engine oil pump, comprise the pump housing, pump cover, external rotor, internal rotor, transmission shaft, plug screw, pressure limiting spring, pressure limiting spool and oil transportation hole plug screw, described pump cover is installed on the pump housing, described transmission shaft is installed in the axis hole of the pump housing and pump cover, internal rotor interference interior with being installed in the pump housing in the middle of the transmission shaft is connected, and external rotor is installed in the pump housing and by internal rotor and drives; In the described pump housing, be provided with into and out of oil pocket, pressure limiting valve opening, oil transportation hole, described oil transportation hole one end is by the oil transportation hole plug screw sealing that screws in the oil transportation hole, be communicated with at the bottom of the hole of the other end in oil transportation hole and described pressure limiting valve opening, described into and out of oil pocket respectively by being communicated with the pressure limiting valve opening into and out of the oil pocket hole, into and out of the oil pocket hole along axially spaced-apart one segment distance of pressure limiting valve opening; Described plug screw is installed in pressure limiting spring and pressure limiting spool in the pressure limiting valve opening, pressure limiting spool one end contacts with the pressure limiting spring, the other end of pressure limiting spool seals up at the bottom of the hole of pressure limiting valve opening, it is characterized in that, the little stock shape in big centre, two of the approximate tallboy profile of described pressure limiting spool, middle little part constitutes a circular groove, and the length of this circular groove is greater than into and out of the pitch-row between the oil pocket hole.
Working principle of the present utility model is: when engine speed increases, engine oil pressure in the fuel-displaced lumen pore raises, the engine oil pressure difference that goes out oil pocket and oil suction chamber increases, at this moment, pressure oil in the main oil gallery enters at the bottom of the hole of pressure limiting valve opening through the oil transportation hole, the resistance that pressure oil promotion pressure limiting spool overcomes the pressure limiting spring moves to pressure limiting spring one end, when the circular groove termination at pressure limiting spool middle part moves to fuel-displaced lumen pore, the pressure oil that goes out in the oil pocket flows into oil suction chamber through the circular groove position of pressure limiting spool, use oil pocket inner engine oil pressure and progressively reduce, reach the purpose of stablizing motor main oil gallery inner engine oil pressure.
The utility model compared with prior art has following characteristics: owing to adopt the pressure limiting spool of stock circular groove shape, its circular groove can be crossed over into and out of the oil pocket hole, use the oil pocket hole and the oil-feed lumen pore directly is communicated with, closely too high pressure oil is flowed to oil suction chamber, not only stablize the engine oil pressure of main oil gallery, but also can reduce the power consumpiton of oil pump, improve the working life of Security, reliability and the prolongation motor of haveing suffered lubrication system.
Description of drawings
Fig. 1 is the structural representation of the utility model backflow pressure limiting rotor engine oil pump.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth mode of execution of the present utility model.
A kind of backflow pressure limiting rotor engine oil pump as shown in Figure 1 comprises the pump housing 1, pump cover 2, external rotor 3, internal rotor 4, transmission shaft 5, plug screw 6, pressure limiting spring 7, pressure limiting spool 8 and oil transportation hole plug screw 9, pump cover 2 is installed on the pump housing 1, transmission shaft 5 is installed in the axis hole of the pump housing 1 and pump cover 2, in the middle of the transmission shaft 5 be installed in the pump housing 1 in internal rotor 4 interference is connected, it is interior and by internal rotor 4 drivings that external rotor 3 is installed in the pump housing 1.
In the pump housing 1, be provided with oil suction chamber 15, go out oil pocket 14, pressure limiting valve opening 16, oil transportation hole 11, oil transportation hole 11 1 ends are by oil transportation hole plug screw 9 sealings that screw in the oil transportation hole 11, be communicated with at the bottom of the hole of the other end in oil transportation hole 11 and pressure limiting valve opening 16, oil suction chamber 15, go out oil pocket 14 and be communicated with pressure limiting valve opening 16 by oil-feed lumen pore 12, fuel-displaced lumen pore 13 respectively, oil-feed lumen pore 12, fuel-displaced lumen pore 13 are along axially spaced-apart one segment distance of pressure limiting valve opening 16; Plug screw 6 is installed in pressure limiting spring 7 and pressure limiting spool 8 in the pressure limiting valve opening 16, pressure limiting spool 8 one ends contact with pressure limiting spring 7, the other end seals up at the bottom of the hole of pressure limiting valve opening 16, the little stock shape in big centre, two of pressure limiting spool 8 approximate tallboy profiles, middle little part constitutes a circular groove 81, and the length of this circular groove 81 is greater than the pitch-row between oil-feed lumen pore 12, the fuel-displaced lumen pore 13.
When engine speed increases, engine oil pressure in the fuel-displaced lumen pore 13 raises, going out oil pocket 14 increases with oil suction chamber 15 engine oil pressure differences, at this moment, pressure oil in the main oil gallery enters the bottom of pressure limiting valve opening 16 through oil transportation hole 11, the resistance that promotion pressure limiting spool 8 overcomes pressure limiting spring 7 moves to pressure limiting spring 7 one ends, when circular groove termination, pressure limiting spool 8 middle part moves to fuel-displaced lumen pore 13, pressure oil in the fuel-displaced lumen pore 13 flows into oil suction chamber 15 through circular groove 81 positions of pressure limiting spool 8, use oil pocket 14 and main oil gallery inner engine oil pressure progressively reduces, reach the purpose of stablizing motor main oil gallery inner engine oil pressure.
More than show and described basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206229581U CN201892018U (en) | 2010-11-25 | 2010-11-25 | Reflux pressure limiting rotor oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206229581U CN201892018U (en) | 2010-11-25 | 2010-11-25 | Reflux pressure limiting rotor oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201892018U true CN201892018U (en) | 2011-07-06 |
Family
ID=44221494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206229581U CN201892018U (en) | 2010-11-25 | 2010-11-25 | Reflux pressure limiting rotor oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201892018U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016940A (en) * | 2012-12-18 | 2013-04-03 | 中国人民解放军军事交通学院 | Vehicle energy-saving oil pump |
| WO2013143479A1 (en) * | 2012-03-29 | 2013-10-03 | Shenzhen Byd Auto R&D Company Limited | Oil pump, engine cover and engine comprising the same |
| WO2013143476A1 (en) * | 2012-03-29 | 2013-10-03 | Shenzhen Byd Auto R&D Company Limited | Oil pump, engine cover and engine comprising the same |
| CN103363277A (en) * | 2012-03-29 | 2013-10-23 | 比亚迪股份有限公司 | Oil pump, engine front cover and engine |
| CN103363275A (en) * | 2012-03-29 | 2013-10-23 | 比亚迪股份有限公司 | Oil pump, engine front cover and engine |
| CN103363276A (en) * | 2012-03-29 | 2013-10-23 | 比亚迪股份有限公司 | Oil pump, engine front cover and engine |
| US9752472B2 (en) | 2012-03-29 | 2017-09-05 | Shenzhen Byd Auto R&D Company Limited | Oil pump, engine cover and engine comprising the same |
-
2010
- 2010-11-25 CN CN2010206229581U patent/CN201892018U/en not_active IP Right Cessation
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363277B (en) * | 2012-03-29 | 2015-12-02 | 比亚迪股份有限公司 | A kind of oil pump, engine front cover lid and motor |
| WO2013143479A1 (en) * | 2012-03-29 | 2013-10-03 | Shenzhen Byd Auto R&D Company Limited | Oil pump, engine cover and engine comprising the same |
| WO2013143476A1 (en) * | 2012-03-29 | 2013-10-03 | Shenzhen Byd Auto R&D Company Limited | Oil pump, engine cover and engine comprising the same |
| CN103363277A (en) * | 2012-03-29 | 2013-10-23 | 比亚迪股份有限公司 | Oil pump, engine front cover and engine |
| CN103363275A (en) * | 2012-03-29 | 2013-10-23 | 比亚迪股份有限公司 | Oil pump, engine front cover and engine |
| CN103363276A (en) * | 2012-03-29 | 2013-10-23 | 比亚迪股份有限公司 | Oil pump, engine front cover and engine |
| CN103363275B (en) * | 2012-03-29 | 2015-12-09 | 比亚迪股份有限公司 | A kind of oil pump, engine front cover lid and motor |
| CN103363276B (en) * | 2012-03-29 | 2016-04-27 | 比亚迪股份有限公司 | A kind of oil pump, engine front cover lid and motor |
| US9512837B2 (en) | 2012-03-29 | 2016-12-06 | Shenzhen Byd Auto R&D Company Limited | Oil pump, engine cover and engine comprising the same |
| US9752472B2 (en) | 2012-03-29 | 2017-09-05 | Shenzhen Byd Auto R&D Company Limited | Oil pump, engine cover and engine comprising the same |
| US9869313B2 (en) | 2012-03-29 | 2018-01-16 | Shenzhen Byd Auto R&D Company Limtied | Oil pump, engine cover and engine comprising the same |
| CN103016940A (en) * | 2012-12-18 | 2013-04-03 | 中国人民解放军军事交通学院 | Vehicle energy-saving oil pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110706 Termination date: 20121125 |