CN105299422A - Variable displacement machine oil pump - Google Patents
Variable displacement machine oil pump Download PDFInfo
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- CN105299422A CN105299422A CN201510852969.6A CN201510852969A CN105299422A CN 105299422 A CN105299422 A CN 105299422A CN 201510852969 A CN201510852969 A CN 201510852969A CN 105299422 A CN105299422 A CN 105299422A
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- oil
- oil pump
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- displacement
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Abstract
The invention discloses a variable displacement machine oil pump. The variable displacement machine oil pump comprises a machine oil pump body and an electromagnetic valve connected to the machine oil pump body in a detachable manner, wherein the machine oil pump body comprises an eccentric ring, a feedback oil cavity I and a feedback oil cavity II, the feedback oil cavity I is communicated with a system main oil channel through a feedback oil pipeline I and produces oil pressure used for forcing the eccentric ring to be pushed towards a direction in which the displacement of the machine oil pump is reduced, and the feedback oil cavity II is communicated with the system main oil channel through a feedback oil pipeline II and, through opening and closing the electromagnetic valve, produces oil pressure used for resisting thrust produced by the feedback oil cavity I. The variable displacement machine oil pump has a secondary variable-displacement structure, can continuously supply oil pressure required by the engine via displacement reduction, and realizes energy conservation covering all working conditions.
Description
Technical field
The present invention relates to a kind of oil pump, particularly a kind of displacement-variable oil pump.
Background technique
Operationally, each moving parts is all used on another part with certain masterpiece motor car engine, and relative movement at a high speed occurs, and had relative movement, part surface must produce friction, thus accelerated wear test.Therefore, in order to alleviate wearing and tearing, reducing frictional resistance, increasing the service life, motor all must have lubrication system.The various equipment such as the organic oil pump of critical piece of lubrication system, the effect of oil pump is after machine oil is brought up to certain pressure, be sent on the moving surface of each part of motor forcibly, it generally comprises pump cover and the pump housing, connect with screw between pump cover and the pump housing, in the pump housing, be provided with internal rotor, external rotor, low pressure oil pocket and high-voltage oil cavity.Traditional oil pump flow (or discharge capacity) when running up is larger, and in fact motor does not need so large flow, in this process, unnecessary machine oil a large amount of idle work that caused motor to do, therefore motor wasted work is larger, thus make engine consumption comparatively large, the effect of energy-saving and emission-reduction can not be met.There is displacement-variable oil pump for this reason, namely stators and rotators and the oil circuit control chamber of eccentric setting are set on oil pump body, elastic element established by stator, when oil pressure in oil circuit control chamber increases until when overcoming precompression on elastic element, stator rotation, and the centripetal moment changed between stators and rotators, makes discharge capacity reduce; But but the pressure reducing to produce with elastic element due to its discharge capacity is linear, although achieve variable displacement, when after engine speed rising, because discharge capacity reduction is too fast, oil pump cannot continue oil pressure needed for provisioning engine.
Therefore, just need a kind of displacement-variable oil pump, it has secondary and becomes row's structure, and the reduction of its discharge capacity can continue oil pressure needed for provisioning engine, and the energy realizing covering full working scope is saved.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of displacement-variable oil pump, it has secondary and becomes row's structure, and the reduction of its discharge capacity can continue oil pressure needed for provisioning engine, and the energy realizing covering full working scope is saved.
Displacement-variable oil pump of the present invention, the solenoid valve comprising oil pump body and be removably connected on oil pump body, described oil pump body comprises eccentric hoop, feedback oil pocket I and feedback oil pocket II, described feedback oil pocket I is communicated with system main oil gallery by feedback oil circuit I and is produced the oil pressure for forcing eccentric hoop to promote towards the direction making oil pump discharge capacity reduce, and described feedback oil pocket II is communicated with system main oil gallery by feedback oil circuit II and is produced for resisting the oil pressure feeding back the thrust that oil pocket I produces by the switch of solenoid valve.
Further, described solenoid valve is provided with the connection part for being electrically connected with the electronic control unit of system.
Further, described connection part comprises wire and signal input connector, and described oil pump body is provided with the wire clamp for specification wire arrangements.
Further, described eccentric hoop is provided with elastic element, and described elastic element has the initializaing variable pressure of the oil pressure that corresponding feedback oil pocket I produces.
Further, described eccentric hoop outer circle wall extends to form resistance arm diametrically, and described elastic element is located between the side of described resistance arm and described oil pump body.
Further, described eccentric hoop outer circle wall extends to form power arm diametrically, and described oil pump body is provided with the recess for accommodating power arm, and described feedback oil pocket I and feedback oil pocket II are formed between power arm and recess respectively.
Further, the Sealing that described feedback oil pocket I and feedback oil pocket II are arranged on power arm separates, and described Sealing is also the center of rotation of eccentric hoop.
Further, described oil pump body also comprises the rotor be located in eccentric hoop, and described rotor is radially provided with multiple blade, and eccentric hoop inner chamber is separated into the hydraulic pressure cavity that multiple volumetric values does not wait by described blade.
Beneficial effect of the present invention: displacement-variable oil pump of the present invention, feedback oil pocket I is normal open oil pocket, can be communicated with system main oil gallery by feedback oil circuit I and produce the oil pressure for forcing eccentric hoop to promote towards the direction making oil pump discharge capacity reduce, discharge capacity is reduced; When engine speed rises to a certain degree, solenoid valve action makes feedback oil pocket II be able to be communicated with system main oil gallery by feedback oil circuit II and to be produced for resisting the oil pressure feeding back the thrust that oil pocket I produces, thus enabling the reduction of discharge capacity continue oil pressure needed for provisioning engine, the energy realizing covering full working scope is saved.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is external structure schematic diagram of the present invention;
Fig. 2 is internal structure schematic diagram of the present invention.
Embodiment
Fig. 1 is external structure schematic diagram of the present invention, Fig. 2 is internal structure schematic diagram of the present invention, as shown in the figure: the displacement-variable oil pump of the present embodiment, comprise oil pump body 1 and be removably connected to the solenoid valve 2 on oil pump body 1, described oil pump body 1 comprises eccentric hoop 3, feedback oil pocket I 41 and feedback oil pocket II 42, described feedback oil pocket I 41 is communicated with system main oil gallery by feedback oil circuit I 51 and is produced the oil pressure for forcing eccentric hoop 3 to promote towards the direction making oil pump discharge capacity reduce, described feedback oil pocket II 42 is communicated with system main oil gallery by feedback oil circuit II 52 and is produced for resisting the oil pressure feeding back the thrust that oil pocket I 41 produces by the switch of solenoid valve 2, feedback oil pocket I 41 is arranged with feedback oil pocket II 42 is independent, and feedback oil circuit I 51 is arranged with feedback oil circuit II 52 is also independent, solenoid valve 2 can be located at conducting feedback oil circuit II 52 controlling feedback oil circuit II 52, feedback oil pocket I 41 is normal open oil pocket, can is communicated with system main oil gallery by feedback oil circuit I 51 and be produced the oil pressure for forcing eccentric hoop 3 to promote towards the direction making oil pump discharge capacity reduce, discharge capacity is reduced, when engine speed rises to a certain degree, solenoid valve 2 action makes feedback oil pocket II 42 be able to be communicated with system main oil gallery by feedback oil circuit II 52 and to be produced for resisting the oil pressure feeding back the thrust that oil pocket I 41 produces, thus enabling the reduction of discharge capacity continue oil pressure needed for provisioning engine, the energy realizing covering full working scope is saved.
In the present embodiment, described solenoid valve 2 is provided with the connection part for being electrically connected with the electronic control unit (i.e. automobile ECU) of system; Described connection part comprises wire 61 and signal input connector 62, and described oil pump body 1 is provided with the wire clamp 7 arranged for specification wire 61; Electronic control unit can be connected with parts such as pressure transducer, speed probe, temperature transducer and torque sensors and receive coherent signal, the action control parameter of pre-given electromagnetic valve 2 in electronic control unit, to solenoid valve 2 sending controling instruction after signal reaches preset standard, realize automatically controlling, make the change of oil pump discharge capacity more can embody the duty requirements of motor; Being provided with of wire clamp 7 is beneficial to the specification maintaining oil pump layout.
In the present embodiment, described eccentric hoop 3 is provided with elastic element 31, and described elastic element 31 has the initializaing variable pressure of the oil pressure that corresponding feedback oil pocket I 41 produces; Elastic element 31 can be the pressure adjusting spring being provided with precompression; Described oil pump body 1 also comprises the rotor 8 be located in eccentric hoop 3, and described rotor 8 is radially provided with multiple blade 81, and eccentric hoop 3 inner chamber is separated into the hydraulic pressure cavity 3a that multiple volumetric values does not wait by described blade 81; After the precompression of the oil pressure counter elastic element 31 in feedback oil pocket I 41, eccentric hoop 3 can be promoted and rotate, thus change eccentric hoop 3 and the throw of eccentric of rotor 8 in oil pump, change the flow that oil pump exports; Described eccentric hoop 3 outer circle wall extends to form resistance arm 32 diametrically, and described elastic element 31 is located between the side of described resistance arm 32 and described oil pump body 1.
In the present embodiment, described eccentric hoop 3 outer circle wall extends to form power arm 33 diametrically, described oil pump body 1 is provided with the recess 1a for accommodating power arm 33, and described feedback oil pocket I 41 and feedback oil pocket II 42 are formed between power arm 33 and recess 1a respectively; Power arm 33 can fan-shaped in from interior divergent shape outward, and the shape of recess 1a is corresponding with it, prevents dislocation; The Sealing 9 that described feedback oil pocket I 41 and feedback oil pocket II 42 are arranged on power arm 33 separates, and described Sealing 9 is also the center of rotation of eccentric hoop 3; Sealing 9 is preferably straight pin.
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 (8)
1. a displacement-variable oil pump, it is characterized in that: the solenoid valve comprising oil pump body and be removably connected on oil pump body, described oil pump body comprises eccentric hoop, feedback oil pocket I and feedback oil pocket II, described feedback oil pocket I is communicated with system main oil gallery by feedback oil circuit I and is produced the oil pressure for forcing eccentric hoop to promote towards the direction making oil pump discharge capacity reduce, and described feedback oil pocket II is communicated with system main oil gallery by feedback oil circuit II and is produced for resisting the oil pressure feeding back the thrust that oil pocket I produces by the switch of solenoid valve.
2. displacement-variable oil pump according to claim 1, is characterized in that: described solenoid valve is provided with the connection part for being electrically connected with the electronic control unit of system.
3. displacement-variable oil pump according to claim 2, is characterized in that: described connection part comprises wire and signal input connector, and described oil pump body is provided with the wire clamp for specification wire arrangements.
4. displacement-variable oil pump according to claim 1, is characterized in that: described eccentric hoop is provided with elastic element, and described elastic element has the initializaing variable pressure of the oil pressure that corresponding feedback oil pocket I produces.
5. displacement-variable oil pump according to claim 4, is characterized in that: described eccentric hoop outer circle wall extends to form resistance arm diametrically, and described elastic element is located between the side of described resistance arm and described oil pump body.
6. displacement-variable oil pump according to claim 5, it is characterized in that: described eccentric hoop outer circle wall extends to form power arm diametrically, described oil pump body is provided with the recess for accommodating power arm, and described feedback oil pocket I and feedback oil pocket II are formed between power arm and recess respectively.
7. displacement-variable oil pump according to claim 6, is characterized in that: the Sealing that described feedback oil pocket I and feedback oil pocket II are arranged on power arm separates, and described Sealing is also the center of rotation of eccentric hoop.
8. displacement-variable oil pump according to claim 1, it is characterized in that: described oil pump body also comprises the rotor be located in eccentric hoop, described rotor is radially provided with multiple blade, and eccentric hoop inner chamber is separated into the hydraulic pressure cavity that multiple volumetric values does not wait by described blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510852969.6A CN105299422A (en) | 2015-11-30 | 2015-11-30 | Variable displacement machine oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510852969.6A CN105299422A (en) | 2015-11-30 | 2015-11-30 | Variable displacement machine oil pump |
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| Publication Number | Publication Date |
|---|---|
| CN105299422A true CN105299422A (en) | 2016-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510852969.6A Pending CN105299422A (en) | 2015-11-30 | 2015-11-30 | Variable displacement machine oil pump |
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| Country | Link |
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| CN (1) | CN105299422A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106247149A (en) * | 2016-08-30 | 2016-12-21 | 宁波圣龙汽车动力系统股份有限公司 | Displacement-variable oil pump |
| CN111637054A (en) * | 2020-05-28 | 2020-09-08 | 奇瑞汽车股份有限公司 | Vane pump |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040022660A1 (en) * | 2002-03-01 | 2004-02-05 | Eisenmann Siegfried A. | Ring gear machine clearance |
| CN201526453U (en) * | 2009-11-11 | 2010-07-14 | 洛阳西苑车辆与动力检验所有限公司 | Built-in oil-throwing gear pump |
| CN102652225A (en) * | 2009-12-15 | 2012-08-29 | 本田技研工业株式会社 | Gear pump |
| CN103499007A (en) * | 2013-10-16 | 2014-01-08 | 宁波圣龙汽车动力系统股份有限公司 | Oil pump discharging amount regulating device |
| CN103775811A (en) * | 2012-10-24 | 2014-05-07 | 北京汽车动力总成有限公司 | Oil pump with variable displacement |
| CN204729901U (en) * | 2015-06-15 | 2015-10-28 | 湖南机油泵股份有限公司 | A kind of single chamber secondary becomes displacement oil pump |
| CN205155527U (en) * | 2015-11-30 | 2016-04-13 | 重庆小康工业集团股份有限公司 | Changeable oil pump of flow |
-
2015
- 2015-11-30 CN CN201510852969.6A patent/CN105299422A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040022660A1 (en) * | 2002-03-01 | 2004-02-05 | Eisenmann Siegfried A. | Ring gear machine clearance |
| CN201526453U (en) * | 2009-11-11 | 2010-07-14 | 洛阳西苑车辆与动力检验所有限公司 | Built-in oil-throwing gear pump |
| CN102652225A (en) * | 2009-12-15 | 2012-08-29 | 本田技研工业株式会社 | Gear pump |
| CN103775811A (en) * | 2012-10-24 | 2014-05-07 | 北京汽车动力总成有限公司 | Oil pump with variable displacement |
| CN103499007A (en) * | 2013-10-16 | 2014-01-08 | 宁波圣龙汽车动力系统股份有限公司 | Oil pump discharging amount regulating device |
| CN204729901U (en) * | 2015-06-15 | 2015-10-28 | 湖南机油泵股份有限公司 | A kind of single chamber secondary becomes displacement oil pump |
| CN205155527U (en) * | 2015-11-30 | 2016-04-13 | 重庆小康工业集团股份有限公司 | Changeable oil pump of flow |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106247149A (en) * | 2016-08-30 | 2016-12-21 | 宁波圣龙汽车动力系统股份有限公司 | Displacement-variable oil pump |
| CN111637054A (en) * | 2020-05-28 | 2020-09-08 | 奇瑞汽车股份有限公司 | Vane pump |
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Application publication date: 20160203 |