CN201284736Y - Flux-variable rotor engine oil pump - Google Patents
Flux-variable rotor engine oil pump Download PDFInfo
- Publication number
- CN201284736Y CN201284736Y CNU2008201891198U CN200820189119U CN201284736Y CN 201284736 Y CN201284736 Y CN 201284736Y CN U2008201891198 U CNU2008201891198 U CN U2008201891198U CN 200820189119 U CN200820189119 U CN 200820189119U CN 201284736 Y CN201284736 Y CN 201284736Y
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- China
- Prior art keywords
- rotor
- oil
- suction chamber
- oil pump
- adjusting
- 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
Links
- 239000010705 motor oil Substances 0.000 title claims description 40
- 239000003921 oil Substances 0.000 claims description 152
- 230000001105 regulatory effect Effects 0.000 claims description 32
- 230000006837 decompression Effects 0.000 claims description 15
- 239000000945 filler Substances 0.000 claims description 10
- 239000010721 machine oil Substances 0.000 description 19
- 239000000446 fuel Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- IXSZQYVWNJNRAL-UHFFFAOYSA-N etoxazole Chemical compound CCOC1=CC(C(C)(C)C)=CC=C1C1N=C(C=2C(=CC=CC=2F)F)OC1 IXSZQYVWNJNRAL-UHFFFAOYSA-N 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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- Rotary Pumps (AREA)
Abstract
The utility model aims to provide a rotor oil pump with good economy and variable flow quantity. The oil pump comprises a case body, an inner rotor, a driving shaft, an outer rotor, an oil inlet cavity and an oil outlet cavity, wherein, the case body is provided with an oil inlet and an oil outlet; the inner rotor, the driving shaft, the outer rotor, the oil inlet cavity and the oil outlet cavity are arranged in the case body; the oil inlet cavity is communicated with the oil inlet; the oil outlet cavity is communicated with the oil outlet; particularly, the oil inlet cavity and the oil outlet cavity are respectively distributed on the inside and outside of the outer rotor; the outside of the outer rotor is provided with a rotatable adjusting rotor and an oil return passage which is used for communicating the oil inlet cavity with the oil outlet cavity, and pressure release holes are distributed in the side wall of the oil outlet cavity; a return valve is arranged on the adjusting rotor; a spring is fixed in the case body, and a free end of the spring is in contact with the return valve of the adjusting rotor; the adjusting rotor is provided with an adjusting valve at the oil return passage; and the pressure release valve is arranged on the pressure release holes. When the rotor is adjusted to rotate, the adjusting valve for adjusting the rotor opens or closes the oil return passage, and the pressure release valve for adjusting the rotor opens or closes the pressure release holes.
Description
Technical field
The utility model relates to automobile engine system, and more particularly, the utility model relates to the oil pump in the engine lubrication system.
Background technique
Present oil pump is commonly the immutable oil pump of flow, and its oil flow rate is proportional to the rotating speed of motor.The immutable oil pump of this kind flow is when high engine speeds turns round, raising along with engine speed, the oil pump fuel delivery constantly increases, oil pressure in each oil duct is constantly increased, and the oil temperature rises, and influences lubrication effect and engine running, for addressing this problem, usually all be that the machine oil in the motor main oil gallery is released, this process need filters through oil filter and the machine oil cooler cooling, can reduce the Economy of motor.And the changeable flow oil pump of minority all is baroque blade type oil pump, and cost height, poor reliability are unfavorable for promoting.
The model utility content
The purpose of this utility model is the rotor engine oil pump that proposes a kind of changeable flow of good economy performance, and this oil pump can change the oil mass that pumps into the motor oil duct automatically according to the oil pressure in the motor oil duct.
The rotor engine oil pump of changeable flow of the present utility model comprises the housing that has filler opening and oil outlet and is arranged on internal rotor, live axle, external rotor, the oil suction chamber in the housing and goes out oil pocket, described oil suction chamber communicates with filler opening, describedly go out oil pocket and communicate with oil outlet, particularly described oil suction chamber and go out oil pocket and distribution is all arranged the interior outside of rotor outside, the arranged outside of described external rotor has rotating adjusting rotor and is communicated with oil suction chamber and the drainback passage that goes out oil pocket, and the sidewall that goes out oil pocket has relief hole; Described adjusting rotor is provided with the return valve, and the housing internal fixation has spring, and the free end of spring contacts with the return valve of regulating rotor; Described adjusting rotor is provided with modulating valve, is provided with Decompression valves at the relief hole place at the drainback passage place, when regulating rotor rotation, the modulating valve of regulating rotor opens or closes described drainback passage, and the Decompression valves of regulating rotor opens or closes described relief hole.
Described adjusting rotor is for the external rotor being the ring-shaped member of axle, and return valve, modulating valve and Decompression valves are disposed on the outer rim of regulating rotor.
Described return valve and modulating valve or return valve and Decompression valves can be structure as a whole, modulating valve or Decompression valves are played simultaneously regulate oil mass and the effect that promotes to regulate the rotor return, can reduce the difficulty of processing of adjusting rotor and spent material, reduce cost.
The filler opening of the rotor engine oil pump of changeable flow of the present utility model, relief hole communicate with oil trap, and oil outlet communicates with the oil duct of motor, and during work, internal rotor rotates and drive external rotor with identical direction rotation with live axle; Inner and outer rotors breaks away from engagement gradually at the oil suction chamber place, and increases gradually along both spaces of formation of sense of rotation, produces certain degree of vacuum, and machine oil is sucked from oil trap by filler opening; Along with the continuation rotation of rotor, the machine oil that the gear of rotor is deposited between cog is taken to out oil pocket; Going out the oil pocket place, reduce gradually in the space between inside and outside rotor, and the machine oil hydraulic that between cog is deposited raises, and machine oil is delivered in the motor oil duct by oil outlet, and inside and outside rotor meshes again.
The rotor engine oil pump of changeable flow of the present utility model has increased by one and has regulated rotor on traditional rotor engine oil pump, this adjusting rotor can be regulated fuel delivery by opening and closing drainback passage and relief hole.The fuel delivery of rotor pump when low speed can satisfy lubricated requirement, and this moment, engine oil pressure was lower, and fuel delivery only becomes with engine speed; Along with engine speed increases, the oil flow rate of transporting to out oil pocket by the gap between inside and outside rotor from oil suction chamber increases, and the engine oil pressure of using oil pocket rises, and the pressure difference that goes out oil pocket and oil suction chamber is increasing; Pressure difference when the drainback passage two ends acquires a certain degree, and the machine oil that goes out oil pocket will promote to regulate the modulating valve rotation of rotor, rotates to the oil suction chamber direction thereby drive the adjusting rotor; After regulating the rotor rotation several angle, regulate the modulating valve of rotor and will open drainback passage, the machine oil that goes out oil pocket is got back to oil suction chamber along drainback passage, the oil pump capacity of oil outlet is descended, lower the pressure that oil pocket, the pressure of finally using oil pocket and oil suction chamber reaches balance, has realized the adjusting of fuel delivery; When the engine oil pressure that goes out oil pocket further increases, will continue to promote to regulate rotor, the Decompression valves of regulating rotor will be opened out the relief hole of oil pocket sidewall, and the machine oil of using oil pocket flows to oil trap from relief hole, thereby has realized the purpose of pressure release.
When regulating rotor when the oil suction chamber direction is rotated, regulate the Decompression valves of rotor and after modulating valve is opened drainback passage, relief hole is opened; When regulating rotor when fuel-displaced cavity direction rotates, regulate the Decompression valves of rotor and before modulating valve cuts out drainback passage, relief hole is closed.Can come adjusting oil flow rate stage by stage like this according to the rotating speed of motor, make the adjusting of the oil pressure that the motor oil duct is interior relax, reduce the impact that brings because of the oil pressure acute variation, can effectively protect motor.And when drainback passage open, when relief hole is closed, machine oil directly flows to oil suction chamber from going out oil pocket, reduce the oil pocket engine oil pressure in, also reduced the length of the flow path of machine oil, reduced the power consumption of oil pump.
When regulating rotor when the oil suction chamber direction is rotated, the return valve of regulating rotor compresses or extension spring.Like this after the rotating speed of motor descends, regulating rotor just can rely on the elastic force effect of spring to get back to original position, close relief hole and drainback passage successively, make the engine oil pressure of motor oil duct can remain on certain level, guarantee the lubricated of motor.
Described drainback passage is an arc, and its sectional area increases to the oil suction chamber direction gradually by going out oil pocket.For reaching the purpose that sectional area increases gradually, the outer side surface that can make described drainback passage is by going out oil pocket to oil suction chamber direction flaring.When regulating rotor when the oil suction chamber direction is rotated, the modulating valve of adjusting rotor and the gap of drainback passage will be increasing, reached the purpose of opening drainback passage like this.
Described housing is provided with the spring limit structure at the free end of spring, like this when the engine speed reduction, when the pressure difference of oil pocket reduces, spring will self elastic force and the effect of spring limit structure under drive and regulate rotor and get back to initial position, guarantee that deviation does not take place in the position of regulating rotor, can normally play a role.
Described housing also is provided with the plug screw of the Regulation spring pressure that is installed in spring stationary end place.So just can or screw out the pressure that plug screw comes Regulation spring by precession, and then regulate to make and regulate the needed oil suction chamber of rotor rotation and go out pressure difference between the oil pocket, can do different settings at different motors, make the application area of oil pump of the present utility model more extensive.
Described housing is fastened by two-part and forms, and gasket seal is equipped with in the centre of housing, and the edge is provided with bolt hole, passes through bolt when making things convenient for housing to fasten.Such housing processing is more convenient, and can guarantee the tightness of housing, and processing cost is also lower.
The rotor engine oil pump of changeable flow of the present utility model has realized that the oil flow rate of transporting to the motor oil duct can change according to the needs of motor, when having guaranteed normal working of engine in the needed fuel delivery, can not make the machine oil in the motor oil duct too much, influence the Performance And Reliability of motor.Because what adopt is rotator type, the compact structure of oil pump, boundary dimension is little, and is in light weight, oil suction degree of vacuum is big, and the pump oil mass is big, the fuel feeding good uniformity, and noise is little, and inside and outside rotor all realized generalization, can directly adopt existing inside and outside rotor, need not to make mould, and cost is low.
Description of drawings
Fig. 1 is the structural representation of rotor engine oil pump of embodiment 1 changeable flow;
Fig. 2 is the structural representation of embodiment 1 two housing sections.
Embodiment
Describe the rotor engine oil pump of changeable flow of the present utility model in detail below in conjunction with drawings and Examples.
Embodiment 1:
The rotor engine oil pump of the changeable flow of present embodiment comprises the housing 1 that has filler opening 5 and oil outlet 6 and is arranged on internal rotor 2, live axle 4, external rotor 3, the oil suction chamber 7 in the housing 1 and goes out oil pocket 8, described oil suction chamber 7 communicates with filler opening 5, describedly go out oil pocket 8 and communicate with oil outlet 6, described oil suction chamber 7 and go out oil pocket 8 and distribution is all arranged in the interior outside of external rotor 3, the arranged outside of described external rotor 3 has rotating adjusting rotor 9 and is communicated with oil suction chamber 7 and the drainback passage 78 that goes out oil pocket 8, and the sidewall that goes out oil pocket 8 has relief hole 10; Described adjusting rotor 9 is provided with return valve 92, and housing 1 internal fixation has spring 11, and the free end of spring 11 contacts with the return valve 92 of regulating rotor 9; Described adjusting rotor 9 is provided with modulating valve 91, is provided with Decompression valves 93 at relief hole 10 places at drainback passage 78 places.
Described adjusting rotor 9 is to be the ring-shaped member of axle with external rotor 3, and return valve 92, modulating valve 91 and Decompression valves 93 are disposed on the outer rim of regulating rotor 9.
Filler opening 5, the relief hole 10 of the rotor engine oil pump of changeable flow of the present utility model communicate with oil trap, and oil outlet 6 communicates with the oil duct of motor, and its working procedure of regulating oil mass according to engine speed is as follows:
1, when engine speed is low, it is less with the engine oil pressure difference of oil suction chamber 7 to go out oil pocket 8, the machine oil that goes out in the oil pocket 8 slightly promotes to regulate rotor 9 rotations, return valve 92 slightly compresses spring 11, but the displacement of modulating valve 91 is very little, drainback passage 78 still is in closed condition, the oil pump normal fuel injection, and this moment, this oil pump was as broad as long with common rotor pump;
2, increase gradually when engine speed, after acquiring a certain degree, the engine oil pressure difference that goes out oil pocket 8 and oil suction chamber 7 increases gradually, the machine oil that goes out in the oil pocket 8 promotes to regulate rotor 9 rotations, and return valve 92 compresses spring 11, and the displacement that modulating valve 91 rotates to oil suction chamber 7 directions increases, drainback passage 78 is opened gradually, the part machine oil that goes out in the oil pocket 8 is pushed back oil suction chamber 7 by drainback passage 78, and the fuel delivery of oil outlet 6 descends, thereby has realized the adjusting of fuel delivery;
3, when engine speed continuation increase, the engine oil pressure difference that goes out oil pocket 8 and oil suction chamber 7 further strengthens, after exceeding certain value, the machine oil that goes out in the oil pocket 8 will further promote to regulate rotor 9 rotations, at this moment, and when drainback passage 78 is opened, the displacement that Decompression valves 93 rotates to oil suction chamber 7 directions increases, make relief hole 10 also be opened, the machine oil that goes out in the oil pocket 8 flows back to oil trap from relief hole 10, thereby has realized the purpose of pressure release.
Described drainback passage 78 is an arc, be to constitute by the outer side wall of regulating rotor 8 and the inwall of housing 1, the outer side surface of described drainback passage 78 is by going out oil pocket 8 to oil suction chamber 7 direction flarings, its sectional area is increased to oil suction chamber 7 directions gradually by going out oil pocket 8, when regulating rotor 9 when oil suction chamber 7 directions are rotated, the modulating valve 91 of regulating rotor 9 will be increasing with the gap of drainback passage 78, reached the purpose of opening drainback passage 78.
The spring 11 of the oil pump of present embodiment is arranged on the housing sidewall of oil suction chamber 7 sides, and its free end contacts with the return valve 92 of regulating rotor 9, when regulating rotor 9 when oil suction chamber 7 directions are rotated, regulates return valve 92 holddown springs 11 of rotor 9.Like this after the rotating speed of motor descends, regulating rotor 9 just can rely on the elastic force effect of spring 11 to get back to original position, close relief hole 10 and drainback passage 78 successively, make the engine oil pressure of motor oil duct can remain on certain level, guarantee the lubricated of motor.
Described housing 1 is provided with the spring limit structure 13 of boss shape at the free end of spring 11, like this when the engine speed reduction, when the pressure difference of oil pocket reduces, spring 11 will self elastic force and the effect of spring limit structure 13 under drive and regulate rotor 9 and get back to initial position, guarantee that deviation does not take place in the position of regulating rotor 9, can normally play a role.
Described housing 1 also is provided with the plug screw 12 of Regulation spring 11 pressure that are installed in spring 11 stationary end places, so just can or screw out the pressure that plug screw comes Regulation spring by precession, and then regulate to make and regulate rotor 9 and rotate needed oil suction chambers 7 and go out pressure difference between the oil pocket 8, can do different settings at different motors, make the application area of oil pump of the present utility model more extensive.
As shown in Figure 2, described housing 1 is fastened by two-part and forms, and a part of enclosure interior is provided with oil suction chamber 7 and goes out oil pocket 8, and described oil suction chamber 7 communicates with filler opening 5, describedly goes out oil pocket 8 and communicates with oil outlet 6; Another part enclosure interior is provided with and is used for installing internal rotor 2, the chamber of external rotor 3 and adjusting rotor 9, the inwall of this partial shell forms drainback passages 78 with adjusting rotor 9, when two housing sections fastens, the two ends of drainback passage 78 respectively with oil suction chamber 7, going out oil pocket 8 communicates, the modulating valve 91 of regulating rotor 9 is in the drainback passage 78, and oil suction chamber 7, go out oil pocket 8 and distribution is all arranged in the interior outside of external rotor 3, the interior outside that can be communicated with external rotor 3 is in making, the machine oil at the place, slit between the external rotor can enter or flow out to oil suction chamber 7 and go out oil pocket 8.Gasket seal preferably is housed between the two housing sections, and the edge of housing is provided with a plurality of bolts hole 14, with the fashionable bolt of passing through of Convenient button.Such housing 1 processing is more convenient, good airproof performance, and processing cost is also lower.
The rotor engine oil pump of changeable flow of the present utility model has realized that the oil flow rate of transporting to the motor oil duct can change according to the needs of motor, when having guaranteed normal working of engine in the needed fuel delivery, can not make the machine oil in the motor oil duct too much, influence the Performance And Reliability of motor.Because what adopt is rotator type, the compact structure of oil pump, boundary dimension is little, and is in light weight, oil suction degree of vacuum is big, the pump oil mass is big, the fuel feeding good uniformity, and noise is little, and inside and outside rotor has all been realized generalization, can directly adopt existing inside and outside rotor, need not to make in addition mould, cost is low.
Claims (8)
1, a kind of rotor engine oil pump of changeable flow, comprise the housing that has filler opening and oil outlet and be arranged on internal rotor, live axle, external rotor, the oil suction chamber in the housing and go out oil pocket, described oil suction chamber communicates with filler opening, describedly go out oil pocket and communicate with oil outlet, it is characterized in that described oil suction chamber and go out oil pocket distribution is all arranged the interior outside of rotor outside, the arranged outside of described external rotor has rotating adjusting rotor and is communicated with oil suction chamber and the drainback passage that goes out oil pocket, and the sidewall that goes out oil pocket has relief hole; Described adjusting rotor is provided with the return valve, and the housing internal fixation has spring, and the free end of spring contacts with the return valve of regulating rotor; Described adjusting rotor is provided with modulating valve, is provided with Decompression valves at the relief hole place at the drainback passage place, when regulating rotor rotation, the modulating valve of regulating rotor opens or closes described drainback passage, and the Decompression valves of regulating rotor opens or closes described relief hole.
2, according to claim 1 or described rotor engine oil pump, it is characterized in that described adjusting rotor for the external rotor being the ring-shaped member of axle, return valve, modulating valve and Decompression valves are disposed on the outer rim of regulating rotor.
3, rotor engine oil pump according to claim 2 is characterized in that described return valve and modulating valve or return valve and Decompression valves are structure as a whole.
4, rotor engine oil pump according to claim 2 is characterized in that described drainback passage is an arc, and its sectional area increases to the oil suction chamber direction gradually by going out oil pocket.
5, rotor engine oil pump according to claim 4, the outer side surface that it is characterized in that described drainback passage is by going out oil pocket to oil suction chamber direction flaring.
6, rotor engine oil pump according to claim 1 is characterized in that described housing is provided with the spring limit structure at the free end of spring.
7, rotor engine oil pump according to claim 6 is characterized in that described housing also is provided with the plug screw of the Regulation spring pressure that is installed in spring stationary end place.
8, rotor engine oil pump according to claim 1 is characterized in that described housing is formed by two-part fastening, and gasket seal is equipped with in the centre of housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201891198U CN201284736Y (en) | 2008-08-26 | 2008-08-26 | Flux-variable rotor engine oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201891198U CN201284736Y (en) | 2008-08-26 | 2008-08-26 | Flux-variable rotor engine oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201284736Y true CN201284736Y (en) | 2009-08-05 |
Family
ID=40949721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201891198U Expired - Fee Related CN201284736Y (en) | 2008-08-26 | 2008-08-26 | Flux-variable rotor engine oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201284736Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102095068A (en) * | 2010-11-13 | 2011-06-15 | 湖南机油泵股份有限公司 | Variable rotor oil pump regulated and controlled by wave wheel |
| CN102563325A (en) * | 2011-12-21 | 2012-07-11 | 浙江吉利汽车研究院有限公司 | Oil pump for automobile |
| CN103133845A (en) * | 2011-12-02 | 2013-06-05 | 明和工业株式会社 | Variable oil pump |
| CN109578269A (en) * | 2019-01-30 | 2019-04-05 | 安徽康明斯动力有限公司 | A kind of engine rotor engine oil pump structure |
| CN113944530A (en) * | 2021-08-30 | 2022-01-18 | 东风汽车集团股份有限公司 | Double-cavity two-stage oil pressure control oil pump |
-
2008
- 2008-08-26 CN CNU2008201891198U patent/CN201284736Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102095068A (en) * | 2010-11-13 | 2011-06-15 | 湖南机油泵股份有限公司 | Variable rotor oil pump regulated and controlled by wave wheel |
| CN103133845A (en) * | 2011-12-02 | 2013-06-05 | 明和工业株式会社 | Variable oil pump |
| CN103133845B (en) * | 2011-12-02 | 2016-01-20 | 明和工业株式会社 | Variable oil pump |
| CN102563325A (en) * | 2011-12-21 | 2012-07-11 | 浙江吉利汽车研究院有限公司 | Oil pump for automobile |
| CN102563325B (en) * | 2011-12-21 | 2014-10-22 | 浙江吉利汽车研究院有限公司 | Oil pump for automobile |
| CN109578269A (en) * | 2019-01-30 | 2019-04-05 | 安徽康明斯动力有限公司 | A kind of engine rotor engine oil pump structure |
| CN109578269B (en) * | 2019-01-30 | 2023-09-08 | 安徽康明斯动力有限公司 | Engine rotor oil pump structure |
| CN113944530A (en) * | 2021-08-30 | 2022-01-18 | 东风汽车集团股份有限公司 | Double-cavity two-stage oil pressure control 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: 20090805 Termination date: 20130826 |