CN103062612B - Displacement-variable oil pump - Google Patents

Displacement-variable oil pump Download PDF

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Publication number
CN103062612B
CN103062612B CN201210587346.7A CN201210587346A CN103062612B CN 103062612 B CN103062612 B CN 103062612B CN 201210587346 A CN201210587346 A CN 201210587346A CN 103062612 B CN103062612 B CN 103062612B
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China
Prior art keywords
oil
pump
pump housing
proportional valve
oil pump
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CN201210587346.7A
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CN103062612A (en
Inventor
许培元
项鑫
邹娟
罗玉龙
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Ningbo Shenglong Automotive Powertrain System Co Ltd
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Ningbo Shenglong Automotive Powertrain System Co Ltd
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Abstract

The invention discloses a kind of displacement-variable oil pump, comprise the oil pump body be communicated with system main oil gallery (17) by feedback oil circuit (15), it also comprises Proportional valve (1) and discharge capacity controlling mechanism, described discharge capacity controlling mechanism is arranged in oil pump body, and passing ratio valve (1) is communicated with feedback oil circuit (15), and described Proportional valve (1) is arranged on oil pump body and with the electronic control unit (16) of system and is electrically connected.After adopting above structure, the turnover oil of passing ratio valve controls the swing of eccentric hoop, thus the throw of eccentric of eccentric hoop and blade wheel in change oil pump, change the flow that oil pump exports, therefore, can unnecessary energy loss be reduced, reach the effect of energy-saving and emission-reduction, decrease hydraulic power and mechanical output, thus improve the working efficiency of motor.

Description

Displacement-variable oil pump
Technical field
The present invention relates to the technical field of oil pump, is specifically 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-rate ratio 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.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of and reduces motor power consumption, raising motor efficiency, thus realize the displacement-variable oil pump of energy-saving and emission-reduction.
For solving the problems of the technologies described above, displacement-variable oil pump provided by the invention, comprise the oil pump body be communicated with system main oil gallery by feedback oil circuit, it also comprises Proportional valve and discharge capacity controlling mechanism, described discharge capacity controlling mechanism is arranged in oil pump body, and passing ratio valve is communicated with feedback oil circuit, and described Proportional valve is arranged on oil pump body and with the electronic control unit of system and is electrically connected.Described oil pump body comprises the pump housing, pump cover, eccentric wheel and blade wheel, described pump cover is fixedly connected on the pump housing, inner chamber is provided with in the pump housing, eccentric wheel and blade wheel is provided with successively from outside to inside in inner chamber, the peripheral wall of blade wheel is provided with multiple blade, the hydraulic pressure cavity that the cavity volume between eccentric wheel and blade wheel is divided into multiple volumetric values not etc. by multiple blade.Described discharge capacity controlling mechanism refers to, the side of eccentric hoop outer circle wall by straight pin and the pump housing hinged, opposite side is sealed by the first Sealing and the pump housing, and the gap of stator and the pump housing is divided into oil suction chamber and oil back chamber by straight pin and the first Sealing; The eccentric hoop outer circle wall being positioned at oil suction chamber has extension arm, and the side of extension arm is connected with the pump housing by Returnning spring, is sealed between the side of extension arm and the pump housing by the second Sealing.Described Proportional valve is connected on pump cover, and the oil outlet of Proportional valve is communicated with oil suction chamber, and the filler opening of Proportional valve is communicated with oil back chamber.
The pump housing of described close oil suction chamber side is provided with the first oil circuit, and one end of the first oil circuit communicates with the oil suction chamber of extension arm away from Returnning spring side, and the other end communicates with the oil outlet of Proportional valve; The pump housing of described close oil back chamber side is provided with the second oil circuit, and one end of the second oil circuit communicates with oil back chamber, and the other end communicates with the filler opening of Proportional valve.
The side of described extension arm has recess, and one end of Returnning spring is pushed against in recess, and the other end is pushed against on the pump housing.
After adopting above structure, the present invention compared with prior art, there is following advantage: owing to having installed Proportional valve in oil pump, make oil pump can according to the change of the factors such as the rotating speed of the pressure of main oil gallery, oil temperature and motor, the turnover oil of passing ratio valve controls the swing of eccentric hoop, thus the throw of eccentric of eccentric hoop and blade wheel in change oil pump, change the flow that oil pump exports, therefore, unnecessary energy loss can be reduced, reach the effect of energy-saving and emission-reduction, decrease hydraulic power and mechanical output, thus improve the working efficiency of motor.
Accompanying drawing explanation
Fig. 1 is the perspective view of displacement-variable oil pump of the present invention.
Fig. 2 is the sectional structure schematic diagram of displacement-variable oil pump of the present invention.
Fig. 3 is the other direction sectional structure schematic diagram of displacement-variable oil pump of the present invention.
Fig. 4 is the principle schematic of displacement-variable oil pump of the present invention.
Wherein, 1, Proportional valve; 1.1, oil outlet; 1.2, filler opening; 2, pump cover; 3, the pump housing; 3.1, the first oil circuit; 3.2, the second oil circuit; 4, extension arm; 4.1, recess; 5, oil back chamber; 6, blade; 7, hydraulic pressure cavity; 8, the first Sealing; 9, Returnning spring; 10, the second Sealing; 11, eccentric hoop; 12, oil suction chamber; 13, straight pin; 14, blade wheel; 15, oil circuit is fed back; 16, electronic control unit; 17, main oil gallery.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in more detail.
The principle schematic of displacement-variable oil pump of the present invention is as shown in Figure 4 known, it comprises the oil pump body be communicated with system main oil gallery 17 by feedback oil circuit 15, it also comprises Proportional valve 1 and discharge capacity controlling mechanism, described discharge capacity controlling mechanism is arranged in oil pump body, and passing ratio valve 1 is communicated with feedback oil circuit 15, and described Proportional valve 1 is arranged on oil pump body and with the electronic control unit 16 of system and is electrically connected.
From the structural representation of the displacement-variable oil pump of the present invention shown in Fig. 1 ~ Fig. 3, described oil pump body comprises the pump housing 3, pump cover 2, eccentric hoop 11 and blade wheel 14, described pump cover 2 is fixedly connected on the pump housing 3, inner chamber is provided with in the pump housing 3, eccentric hoop 11 and blade wheel 14 is provided with from outside to inside successively in inner chamber, the peripheral wall of blade wheel 14 is provided with multiple blade 6, the hydraulic pressure cavity 7 that the cavity volume between eccentric hoop 11 and blade wheel 14 is divided into multiple volumetric values not etc. by multiple blade 6.
Described discharge capacity controlling mechanism refers to, the side of eccentric hoop 11 outer circle wall is hinged by straight pin 13 and the pump housing 3, opposite side is sealed with the pump housing 3 by the first Sealing 8, and the gap of stator and the pump housing 3 is divided into oil suction chamber 12 and oil back chamber 5 by straight pin 13 and the first Sealing 8.Eccentric hoop 11 outer circle wall being positioned at oil suction chamber 12 has extension arm 4, and the side of extension arm 4 is connected with the pump housing 3 by Returnning spring 9, is sealed between the side of extension arm 4 and the pump housing 3 by the second Sealing 10.
Described Proportional valve 1 is connected on pump cover 2, and the oil outlet 1.1 of Proportional valve 1 is communicated with oil suction chamber 12, and the filler opening 1.2 of Proportional valve 1 is communicated with oil back chamber 5.
One end that the pump housing 3 of described close oil suction chamber 12 side is provided with the first oil circuit 3.1, first oil circuit 3.1 communicates with the oil suction chamber 12 of extension arm 4 away from Returnning spring 9 side, and the other end communicates with the oil outlet 1.1 of Proportional valve 1; One end that the pump housing 3 of described close oil back chamber 5 side is provided with the second oil circuit 3.2, second oil circuit 3.2 communicates with oil back chamber 5, and the other end communicates with the filler opening 1.2 of Proportional valve 1.
The side of described extension arm 4 has recess 4.1, and one end of Returnning spring 9 is pushed against in recess 4.1, and the other end is pushed against on the pump housing 3.
Working principle of the present invention is as follows: after pressure transducer detects the fluid pressure of system main oil gallery 17, feed back to Proportional valve 1, Proportional valve 1 action, its oil outlet 1.1 is fuel-displaced, oil suction chamber 12 is entered through the first oil circuit 3.1, oil suction chamber 12 pressure raises, the stressed backward direction with Returnning spring 9 of extension arm 4 is swung, thus drive eccentric hoop 11 with straight pin 13 for fulcrum, thus the gap between adjustment eccentric hoop 11 and blade wheel 14, then the volume of each hydraulic pressure cavity 7 is adjusted, namely have adjusted the fluid discharge capacity of oil pump, thus reach the object of oil pressure in balance and replenishment system, oil is then got back in the filler opening 1.2 of Proportional valve 1 by the second oil circuit 3.2 by oil back chamber 5.

Claims (3)

1. a displacement-variable oil pump, comprise the oil pump body be communicated with system main oil gallery (17) by feedback oil circuit (15), it also comprises Proportional valve (1) and discharge capacity controlling mechanism, described discharge capacity controlling mechanism is arranged in oil pump body, and passing ratio valve (1) is communicated with feedback oil circuit (15), and described Proportional valve (1) is arranged on oil pump body and with the electronic control unit (16) of system and is electrically connected; Described oil pump body comprises the pump housing (3), pump cover (2), eccentric hoop (11) and blade wheel (14), described pump cover (2) is fixedly connected on the pump housing (3), the pump housing is provided with inner chamber in (3), eccentric hoop (11) and blade wheel (14) is provided with from outside to inside successively in inner chamber, the peripheral wall of blade wheel (14) is provided with multiple blade (6), the hydraulic pressure cavity (7) that the cavity volume between eccentric hoop (11) and blade wheel (14) is divided into multiple volumetric values not etc. by multiple blade (6); Described discharge capacity controlling mechanism refers to, the side of eccentric hoop (11) outer circle wall is hinged by straight pin (13) and the pump housing (3), opposite side is sealed by the first Sealing (8) and the pump housing (3), and the gap of stator and the pump housing (3) is divided into oil suction chamber (12) and oil back chamber (5) by straight pin (13) and the first Sealing (8); Eccentric hoop (11) outer circle wall being positioned at oil suction chamber (12) has extension arm (4), the side of extension arm (4) is connected with the pump housing (3) by Returnning spring (9), is sealed between the side of extension arm (4) and the pump housing (3) by the second Sealing (10); It is characterized in that: described Proportional valve (1) is connected on pump cover (2), the oil outlet (1.1) of Proportional valve (1) is communicated with oil suction chamber (12), and the filler opening (1.2) of Proportional valve (1) is communicated with oil back chamber (5).
2. displacement-variable oil pump according to claim 1, it is characterized in that: the pump housing (3) near oil suction chamber (12) side is provided with the first oil circuit (3.1), one end of first oil circuit (3.1) communicates with the oil suction chamber (12) of extension arm (4) away from Returnning spring (9) side, and the other end communicates with the oil outlet (1.1) of Proportional valve (1); The pump housing (3) near oil back chamber (5) side is provided with the second oil circuit (3.2), one end of second oil circuit (3.2) communicates with oil back chamber (5), and the other end communicates with the filler opening (1.2) of Proportional valve (1).
3. displacement-variable oil pump according to claim 1, it is characterized in that: the side of described extension arm (4) has recess (4.1), one end of Returnning spring (9) is pushed against in recess (4.1), and the other end is pushed against on the pump housing (3).
CN201210587346.7A 2012-12-28 2012-12-28 Displacement-variable oil pump Active CN103062612B (en)

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Application Number Priority Date Filing Date Title
CN201210587346.7A CN103062612B (en) 2012-12-28 2012-12-28 Displacement-variable oil pump

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Application Number Priority Date Filing Date Title
CN201210587346.7A CN103062612B (en) 2012-12-28 2012-12-28 Displacement-variable oil pump

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CN103062612A CN103062612A (en) 2013-04-24
CN103062612B true CN103062612B (en) 2015-09-09

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103499007B (en) * 2013-10-16 2016-08-17 宁波圣龙汽车动力系统股份有限公司 Oil pump capacity adjusting means
CN103671093B (en) * 2013-12-05 2016-03-09 宁波圣龙汽车动力系统股份有限公司 A kind of variable displacement vane pump
CN105298584A (en) * 2015-11-30 2016-02-03 重庆小康工业集团股份有限公司 Variable displacement lubrication system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101443557A (en) * 2006-03-27 2009-05-27 盖茨公司 Variable displacement sliding vane pump
CN101881272A (en) * 2009-05-05 2010-11-10 Gm全球科技运作股份有限公司 Variable vane pump
CN102364205A (en) * 2011-10-24 2012-02-29 上海幸福摩托车有限公司 Variable displacement oil pump
CN203099277U (en) * 2012-12-28 2013-07-31 宁波圣龙汽车动力系统股份有限公司 Oil pump with changeable discharge capacity

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6763797B1 (en) * 2003-01-24 2004-07-20 General Motors Corporation Engine oil system with variable displacement pump

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101443557A (en) * 2006-03-27 2009-05-27 盖茨公司 Variable displacement sliding vane pump
CN101881272A (en) * 2009-05-05 2010-11-10 Gm全球科技运作股份有限公司 Variable vane pump
CN102364205A (en) * 2011-10-24 2012-02-29 上海幸福摩托车有限公司 Variable displacement oil pump
CN203099277U (en) * 2012-12-28 2013-07-31 宁波圣龙汽车动力系统股份有限公司 Oil pump with changeable discharge capacity

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