CN102410214A - Middle-section variable high-speed pressure limiting three-section pressure feedback variable-displacement vane pump and variable-displacement method - Google Patents
Middle-section variable high-speed pressure limiting three-section pressure feedback variable-displacement vane pump and variable-displacement method Download PDFInfo
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- CN102410214A CN102410214A CN2011103427490A CN201110342749A CN102410214A CN 102410214 A CN102410214 A CN 102410214A CN 2011103427490 A CN2011103427490 A CN 2011103427490A CN 201110342749 A CN201110342749 A CN 201110342749A CN 102410214 A CN102410214 A CN 102410214A
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Abstract
The invention discloses a middle-section variable high-speed pressure limiting three-section pressure feedback variable-displacement vane pump and a variable-displacement method. A pump cover is arranged on a pump body through a screw; a positioning pin is arranged between the pump cover and the pump body; a transmission shaft is arranged in a transmission shaft installation hole on the pump body and a transmission shaft installation hole on the pump cover; a rotor is arranged on a transmission shaft in a cavity on the pump body; a variable slide block is arranged in the cavity on the pump body; a rotor cavity on the variable slide block is sleeved on the rotor; a slide block rotary positioning pin passes through a semicircular slide block rotary positioning pin installation hole on the variable slide block, and is arranged on slide block rotary positioning pin installation holes on the pump body and the pump cover; a variable spring is arranged in the cavity on the pump body; one end of the variable spring is contacted with the inner bottom of the cavity on the pump body, and the other end of the variable spring is pressed against a spring pressure block on the variable slide block; and a pressure limiting valve is arranged on the pump body. In the variable-displacement method, the pump displacement of the pressure feedback variable-displacement vane pump is classified into maximum displacement, variable displacement and minimum displacement for meeting the lubricating requirement of an engine.
Description
Technical field
The present invention relates to the lubricating system of IC engine technical field, particularly a kind of internal combustion engine lubrication becomes the discharge capacity method with the 3 stops pressure feedback of variable displacement vane pump and middle segment variable high speed pressure limiting.
Background technique
Engine lube oil system is main with quantitative gear pump and rotor pump still at present.Along with attention day by day and motor The application of new technique to fuel economy; Lubrication system has been proposed increasingly high requirement with oil pump; The application of variable displacement vane pump product on motor more and more widely, the level-on variable vane pump that comprises pressure feedback that obtains at present to use in batches, the secondary pressure feedback variable vane pump of solenoid valve conversion and adopt MAP to carry out complete automatically controlled variable displacement vane pump.
The control curve of the level-on variable vane pump of existing pressure feedback is shown in curve A BEFG in the accompanying drawing 18 and curve A 1B1E1F1G1; Wherein curve A BEFG is a main oil gallery pressure feedback curve; Curve A 1B1E1F1G1 is the pump discharge pressure feedback profile; Its controlling method is divided into two kinds of forms, and BEFG is an example with main oil gallery pressure feedback curve A:
A, as main oil gallery pressure △ p≤△ p (F), the level-on variable vane pump is kept maximum pump discharge, i.e. q=q
Max, the rotating speed of vane pump flow and motor is proportional, i.e. Q=q
MaxN, wherein q
MaxMaximum displacement values for the level-on variable oil pump;
B, when main oil gallery pressure △ p>=△ p (F), q=n (F) q
Max/ n; Owing to need take into account the lubrication needs under high-speed state; Main oil gallery Variable Control pressure generally is controlled at about 4bar, is higher than 100 ℃ at oil temperature, and rising of stroking mechanism turned fast n (F) generally more than 3000rpm; Drive in the scope not quite with metering pump difference the motor master, fuel-economizing is not obvious.
From accompanying drawing 18, can find out; Pump discharge pressure feedback profile A1B1E1F1G1 and main oil gallery pressure feedback curve A BEFG are similar; Its maximum pump discharge and minimum injection rate are a little more than the main oil gallery control mode, and each pressure point of adjustment considers that the pressure loss of oil strainer has increase in various degree.
The control curve of the secondary pressure feedback variable vane pump of existing solenoid valve conversion is shown in curve A BCEFG in the accompanying drawing 18 and curve A 1B1C1E1F1G1; Wherein curve A BCEFG is a main oil gallery pressure feedback curve; Curve A 1B1C1E1F1G1 is the pump discharge pressure feedback profile; Its controlling method is divided into five kinds of forms, and BCEFG is an example with main oil gallery pressure feedback curve A:
A, as main oil gallery pressure △ p≤△ p (B), it is q=q that the level-on variable oil pump is kept maximum pump discharge
Max, the rotating speed of oil pump capacity and motor is proportional, i.e. Q=q
MaxN, wherein q
MaxMaximum displacement values for the level-on variable oil pump;
B, as engine speed n≤3000 rpm and △ p>=△ p (B), q=n (B) q
Max/ n;
C, as engine speed n>=3000 rpm and △ p (B)≤△ p≤△ p (E), q=n (E) q
Max/ n;
D, as △ p (F)>=△ p>=△ p (E), q=q
Max
E, as engine speed n>=3000 rpm, △ p>=△ p (F), q=n (F) q
Max/ n.
From accompanying drawing 18, can find out; Secondary pressure feedback variable vane pump outlet pressure feedback profile A1B1C1E1F1G1 and main oil gallery pressure feedback curve A BCEFG are similar; Its maximum pump discharge and minimum injection rate are a little more than the main oil gallery control mode, and each pressure point of adjustment considers that the pressure loss of oil strainer has increase in various degree.
The power consumpiton that the controlling method that adopts secondary to become the discharge capacity oil pump obviously will be saved variable displacement pump than the controlling method that adopts the level-on variable oil pump.
In above-mentioned two kinds of methods, the level-on variable vane pump of first method simple in structure, cost is low, but operation energy consumption is high, generally only on low and middle-grade cars, uses; Though the secondary variable vane pump operation energy consumption of second method is low, the complex structure of secondary variable vane pump, and have response lag; Problems such as engine calibration; Cost is high, and general is used on high-grade passenger car, also be not suitable for the transformation to the available engine type; Be not suitable for the narrower motors of speed range such as commercial car, application is restricted.
The secondary pressure feedback variable oil pump that adopts MAP to carry out automatically controlled full variable oil pump and adopt solenoid valve to change is basic identical under typical of engines rotating speed and typical load, and cost is higher, and application is restricted.
Summary of the invention
The objective of the invention is to overcome the above-mentioned deficiency of existing technology and a kind of 3 stops pressure feedback variable displacement vane pump of novel middle segment variable high speed pressure limiting is provided and becomes the discharge capacity method; Through improvement, realize the energy-saving effect that the structure control of secondary variable oil pump meets or exceeds to level-on variable oil pump structure.
Technological scheme of the present invention is: the 3 stops pressure feedback variable displacement vane pump of segment variable high speed pressure limiting in a kind of, it comprises the pump housing, locating stud, slide block rotation positioning pin, pump cover, eccentric blade positioning ring, transmission shaft, pressure-limit valve, blade, sealing support, rectangular seal, rotor, variable spring, pump cover mounting screw, variable slide block and pump cover locating stud.
Be provided with the cavity and transmission shaft mounting hole, slide block rotation positioning pin mounting hole, pump cover locating stud mounting hole and the oil outlet that are used for installing variable slide block, rotor and variable spring in the pump housing; Oil outlet communicates with cavity through oil duct, and slide block rotation positioning pin mounting hole is a blind hole.
Pump cover is provided with transmission shaft mounting hole, slide block rotation positioning pin mounting hole and pump cover locating stud mounting hole, and slide block rotation positioning pin mounting hole is a blind hole.
The variable slide block is provided with spring lock block, Sealing mounting groove, oil guide slot and semicircle slide block rotation positioning pin mounting hole; Sealing is supported and the rectangular seal part is installed in the Sealing mounting groove on the variable slide block; The bottom that is installed in the Sealing mounting groove is supported in sealing, is used for supporting the rectangular seal part.
Rotor is provided with axis hole and is used for seven blade installation grooves of mounting blades; Seven blade installation grooves are evenly respectively on rotor; Two end faces at rotor are respectively equipped with an eccentric blade positioning ring mounting hole, and a blade all is installed in each blade installation groove, and blade can radially move in the blade installation groove; Two eccentric blade positioning rings are installed in respectively in the eccentric blade positioning ring mounting hole on 11 two end faces of rotor, and eccentric blade positioning ring is used for the lateral movement of limit blade.
Pump cover is installed on the pump housing through the pump cover mounting screw, is provided with the pump cover locating stud between the pump cover and the pump housing, and the pump cover locating stud is installed in the pump cover locating stud mounting hole and the pump cover locating stud mounting hole on the pump cover on the pump housing.Transmission shaft is installed in the transmission shaft mounting hole and the transmission shaft mounting hole on the pump cover on the pump housing; Transmission shaft mounting hole on the transmission shaft and the pump housing, the transmission shaft mounting hole on the pump cover adopt movingly; The rotor that blade and eccentric blade positioning ring are installed is installed on the transmission shaft in the cavity on the pump housing, and epitrochanterian axis hole and transmission shaft adopt interference fit.The variable slide block is installed in the cavity on the pump housing; Rotor chamber on the variable slide block is sleeved on the rotor; The semicircle slide block rotation positioning pin mounting hole that slide block rotation positioning pin passes on the variable slide block is installed in the slide block rotation positioning pin mounting hole and the slide block rotation positioning pin mounting hole on the pump cover on the pump housing; The variable slide block can be to swing in the cavity of axle center on the pump housing with slide block rotation positioning pin, and rectangular seal on the variable slide block and slide block rotation positioning pin are divided into feedback pressure oil pocket a and oil suction chamber b with the cavity on the pump housing.Side in the pump housing upper plenum is provided with the variable spring; Bottom in one end of variable spring and the pump housing upper plenum contact, and the other end withstands on the spring lock block on the variable slide block, and spring lock block can only be in the angle of qualification is that fulcrum is swung with the rotation positioning pin; Two limit positions of spring lock block are corresponding maximum pump discharge and minimum injection rate respectively; Spring lock block on the variable slide block and spring surface of contact are when displacement c, and there is precompression in spring, i.e. initializaing variable pressure; During d, spring reaches maximum compressibility in the minimum injection rate position for spring lock block on the variable slide block and spring surface of contact.
The pressure regulation power that rises of said variable spring confirms according to the lubrication needs of motor stage casing rotating speed, for the main oil gallery control structure usually between 2 bar～3.5 bar, for pump discharge control usually between 2.3 bar～4.5 bar.
Pressure-limit valve is located on the pump housing, the control oil duct of pressure-limit valve and the pressure oil output terminal UNICOM on the pump housing.
The present invention also provide a kind of in the 3 stops pressure feedback of segment variable high speed pressure limiting become the discharge capacity method, it is that pump displacement with the pressure feedback variable vane pump is divided into maximum pump discharge, variable displacement and three kinds of modes of minimum injection rate, its concrete grammar is following:
Spring lock block on A, the variable slide block and spring surface of contact are when displacement c; There is precompression in spring; Be initializaing variable pressure, when the moment of feedback oil pocket a hydraulic coupling generation was not enough to overcome the moment of pre-pressure of the spring generation, variable vane pump was in the maximum pump discharge state.
B, the moment that produces when feedback oil pocket a hydraulic coupling surpass the precompressed moment of spring output, but during less than the spring moment that d produces in the minimum injection rate position, variable vane pump is in the variable displacement scope.
C, the moment that produces when feedback oil pocket a hydraulic coupling surpass the spring moment that d produces in the minimum injection rate position, and during d, variable vane pump is in the minimum injection rate stage in the minimum injection rate position for spring lock block on the variable slide block and spring surface of contact.
The present invention compared with prior art has following characteristics:
1, the Variable Control method of the 3 stops pressure feedback variable vane pump of middle segment variable high speed pressure limiting provided by the invention meets or exceeds the energy-saving effect of secondary variable oil pump through the architecture advances to the one-level variable-displacement pump; Its General obviously is superior to the controlling method of level-on variable oil pump and the controlling method of secondary variable oil pump; Both save the product input cost, saved product operating cost simultaneously again.
2, aspect structural design, for the 3 stops change discharge capacity oil pump of segment variable high speed pressure limiting in the motor of pure pressure feedback, just define the corner of spring lock block, this is easy to realize through the change pump housing; In addition, change the safety valve of former one-level pump into pressure-limit valve, the machine oil that pressure-limit valve leaks gets into the inlet port of vane pump again.
3, the rigidity of Moderator Variable spring is reduced to about 2bar about having made pressure regulation power by 4bar, has improved the space that motor main oil gallery pressure is optimized greatly.
4, in provided by the invention the 3 stops pressure feedback variable vane pump of segment variable high speed pressure limiting simple in structure, cost is low, can on various passenger cars and commerial vehicle, use, and is q
Min/ q
MaxCan improve, no matter be the engine model newly developed or the transformation of existing engine model, all simple, both reduced product cost, save operating cost again, reach the purpose that reduces oil consumption.
Below in conjunction with accompanying drawing and embodiment detailed structure of the present invention is further described.
Description of drawings
Accompanying drawing 1 is a structural representation of the present invention;
Accompanying drawing 2 is the A-A sectional view in the accompanying drawing 1;
Accompanying drawing 3 is the perspective view of the pump housing;
Accompanying drawing 4 is the structural representation of pump cover;
Accompanying drawing 5 is the left view in the accompanying drawing 4;
Accompanying drawing 7 is the B-B sectional view in the accompanying drawing 6;
Accompanying drawing 8 is the structural representation of rotor;
Accompanying drawing 9 is the C-C sectional view in the accompanying drawing 8;
Accompanying drawing 10 is the structural representation of blade;
Accompanying drawing 11 is the left view in the accompanying drawing 10;
Accompanying drawing 13 is the left view in the accompanying drawing 12;
Accompanying drawing 14 is the structural representation of rectangular seal;
Accompanying drawing 15 is the left view in the accompanying drawing 14;
Accompanying drawing 16 is the structural representation of eccentric blade positioning ring;
Accompanying drawing 17 is the D-D sectional view in the accompanying drawing 16;
Accompanying drawing 18 is variable vane pump control plotted curve.
Embodiment
The 3 stops pressure feedback variable displacement vane pump of segment variable high speed pressure limiting in a kind of, it comprises the pump housing 1, locating stud 2, slide block rotation positioning pin 3, pump cover 4, eccentric blade positioning ring 5, transmission shaft 6, pressure-limit valve 7, blade 8, sealing support 9, rectangular seal 10, rotor 11, variable spring 12, pump cover mounting screw 13, variable slide block 14 and pump cover locating stud 15.
Be provided with the cavity 1-1 and transmission shaft mounting hole 1-2, slide block rotation positioning pin mounting hole 1-3, pump cover locating stud mounting hole 1-4 and the oil outlet 1-5 that are used for installing variable slide block 14, rotor 11 and variable spring 12 in the pump housing 1; Oil outlet 1-5 communicates with cavity 1-1 through oil duct, and slide block rotation positioning pin mounting hole 1-3 is a blind hole.
Pump cover 4 is installed on the pump housing 1 through pump cover mounting screw 13, is provided with pump cover locating stud 15 between the pump cover 4 and the pump housing 1, and pump cover locating stud 15 is installed in the pump cover locating stud mounting hole 1-4 and the pump cover locating stud mounting hole 4-3 on the pump cover 4 on the pump housing 1.Transmission shaft 6 is installed in the transmission shaft mounting hole 1-2 and the transmission shaft mounting hole 4-1 on the pump cover 4 on the pump housing 1; Transmission shaft mounting hole 1-2, the transmission shaft mounting hole 4-1 on the pump cover 4 on the transmission shaft 6 and the pump housing 1 adopt movingly; The rotor 11 that blade 8 and eccentric blade positioning ring 5 are installed is installed on the transmission shaft 6 in the cavity 1-1 on the pump housing 1, and axis hole 11-1 on the rotor 11 and transmission shaft 6 adopt interference fit.Variable slide block 14 is installed in the cavity 1-1 on the pump housing 1; Rotor chamber 14-5 on the variable slide block 14 is sleeved on the rotor 11; The semicircle slide block rotation positioning pin mounting hole 14-4 that slide block rotation positioning pin 3 passes on the variable slide block 14 is installed in the slide block rotation positioning pin mounting hole 1-3 and the slide block rotation positioning pin mounting hole 4-2 on the pump cover 4 on the pump housing 1; Variable slide block 14 can be to swing in the cavity 1-1 of axle center on the pump housing 1 with slide block rotation positioning pin 3, and the rectangular seal 10 on the variable slide block 14 is divided into feedback pressure oil pocket a and oil suction chamber b with slide block rotation positioning pin 3 with the cavity 1-1 on the pump housing 1.Side in the pump housing 1 upper plenum 1-1 is provided with variable spring 12; Bottom in one end of variable spring 12 and the pump housing 1 upper plenum 1-1 contact, and the other end withstands on the spring lock block 14-1 on the variable slide block 14, and spring lock block 14-1 can only be in the angle of qualification is that fulcrum is swung with rotation positioning pin 3; Two limit positions of spring lock block 14-1 are corresponding maximum pump discharge and minimum injection rate respectively; Spring lock block 14-1 on the variable slide block 14 and spring surface of contact are when displacement c, and there is precompression in spring, i.e. initializaing variable pressure; During d, spring reaches maximum compressibility in the minimum injection rate position for spring lock block 14-1 on the variable slide block 14 and spring surface of contact.
The pressure regulation power that rises of said variable spring 12 confirms according to the lubrication needs of motor stage casing rotating speed, for the main oil gallery control structure usually between 2 bar～3.5 bar, for pump discharge control usually between 2.3 bar～4.5 bar.
Pressure-limit valve 7 is located on the pump housing 1, the control oil duct of pressure-limit valve 7 and the pressure oil output terminal UNICOM on the pump housing 1.
Present embodiment also provide a kind of in the 3 stops pressure feedback of segment variable high speed pressure limiting become the discharge capacity method, it is that pump displacement with the pressure feedback variable vane pump is divided into maximum pump discharge, variable displacement and three kinds of modes of minimum injection rate, its concrete grammar is following:
Spring lock block 14-1 on A, the variable slide block 14 and spring 12 surface of contact are when displacement c; There is precompression in spring 12; Be initializaing variable pressure; When the moment of feedback oil pocket a hydraulic coupling generation was not enough to overcome the moment of spring 12 precompressions generation, variable vane pump was in the maximum pump discharge state;
B, the moment that produces when feedback oil pocket a hydraulic coupling surpass the precompressed moment of spring 12 outputs, but during less than spring 12 moment that d produces in the minimum injection rate position, variable vane pump is in the variable displacement state;
C, the moment that produces when feedback oil pocket a hydraulic coupling surpass spring 12 moment that d produces in the minimum injection rate position, and during d, variable vane pump is in the minimum injection rate state in the minimum injection rate position for spring lock block 14-1 on the variable slide block 14 and spring 12 surface of contact.
The main oil gallery pressure feedback control curve of the 3 stops pressure feedback variable vane pump of middle segment variable high speed pressure limiting is divided into three kinds of forms shown in the curve A BCD in the accompanying drawing 18:
A, as main oil gallery pressure △ p≤△ p (B), it is q=q that the 3 stops pressure feedback variable vane pump of middle segment variable high speed pressure limiting is kept maximum pump discharge
Max, the rotating speed of vane pump flow and motor is proportional, i.e. Q=q
MaxN, wherein q
MaxMaximum displacement values for variable vane pump;
B, as main oil gallery pressure △ p (C)>=△ p>=△ p (B), q=n (B) q
Max/ n;
C, as main oil gallery pressure △ p>=△ p (C), q=n (B) q
Max/ n (C)=q
Min, the flow of variable oil pump and the rotating speed of motor are proportional, i.e. Q=q
MinN, the control curve stops at the D point, carries out pressure control through pressure-limit valve 7.
The pump discharge pressure feedback profile of the 3 stops pressure feedback variable vane pump of middle segment variable high speed pressure limiting is shown in the curve A 1B1C1D1 in the accompanying drawing 18; BCD is similar with main oil gallery pressure feedback curve A; It has considered the pressure loss and the otherness of flow element between pump discharge and main oil gallery import; For guaranteeing main oil gallery pressure; The 3 stops pressure feedback variable vane pump pump displacement maximum pump discharge of middle segment variable high speed pressure limiting and minimum injection rate are a little more than the main oil gallery control mode, and each pressure point of adjustment considers that the pressure loss of oil strainer has increase in various degree.
Only be fed back to example with main oil gallery, the flow that one-level variable displacement vane pump, secondary become the 3 stops pressure feedback variable vane pump of discharge capacity oil pump and the pressure limiting of middle segment variable high speed is described below:
The one-level variable displacement vane pump is controlled curve shown in the curve A BEFG among Figure 18,
As main oil gallery pressure △ p≤△ p (F), Q=q
MaxN,
As main oil gallery pressure △ p>=△ p (F), Q=q
MaxN (F), q reduces along with the raising of rotating speed, and pump duty is constant;
The control curve of secondary pressure feedback variable vane pump shown in the curve A BCEFG in the accompanying drawing 18,
As main oil gallery pressure △ p≤△ p (B), Q=q
MaxN;
As n≤3000 rpm and main oil gallery pressure △ p>=△ p (B), Q=n (B) q
Max
As engine speed n>=3000 rpm and △ p (B)≤△ p≤△ p (E), Q=n (E) q
MaxAs △ p (F)>=△ p>=△ p (E), Q=n q
Max
As engine speed n>=3000 rpm and △ p>=△ p (F), Q=n (F) q
Max
The 3 stops pressure feedback variable vane pump control curve of middle segment variable high speed pressure limiting is shown in the curve A BCD in the accompanying drawing 18:
As main oil gallery pressure △ p≤△ p (B), Q=q
MaxN;
As main oil gallery pressure △ p (C)>=△ p>=△ p (B), Q=n (B) q
Max
As main oil gallery pressure △ p>=△ p (C), Q=n (B) nq
Max/ n (B)=q
MinN.
The power comparative analysis of the 3 stops pressure feedback variable vane pump of one-level change discharge capacity oil pump, secondary change discharge capacity oil pump and the pressure limiting of middle segment variable high speed is following, and η is the vane pump mechanical efficiency:
C point in the accompanying drawing 18 in the curve can be similar to the rotating speed point of regarding motor 3000 rpm as; Be below 3000 rpm before the C point; The main oil gallery pressure that the 3 stops pressure feedback variable vane pump of middle segment variable high speed pressure limiting produces is identical with the secondary variable pump with flow, and power consumpiton is identical.
At engine speed n (L) >=n＞3000 rpm, n (L) is near 3500 rpm, and this interval also is that the gold rotating speed of passenger car is interval, and the 3 stops pressure feedback variable vane pump of middle segment variable high speed pressure limiting has very significantly power-saving.
W
51=W
5-W
1=?q
maxn*△p
5?(n)/?η-?q
minn*△p
1?(n)/?η；
W
51/ W
5Usually surpass 40%
When engine speed n >=n (F), the secondary variable pump shows certain power and saves, but the operating mode of n >=3500 rpm is atypical, and is little to the vehicle oil saving practical significance.
The 3 stops pressure feedback variable vane pump of middle segment variable high speed pressure limiting is more obvious with respect to level-on variable pump advantage.
Claims (3)
1. the 3 stops pressure feedback variable displacement vane pump of segment variable high speed pressure limiting in a kind, it is characterized in that: it comprises the pump housing, locating stud, slide block rotation positioning pin, pump cover, eccentric blade positioning ring, transmission shaft, pressure-limit valve, blade, sealing support, rectangular seal, rotor, variable spring, pump cover mounting screw, variable slide block and pump cover locating stud;
Be provided with the cavity and transmission shaft mounting hole, slide block rotation positioning pin mounting hole, pump cover locating stud mounting hole and the oil outlet that are used for installing variable slide block, rotor and variable spring in the pump housing; Oil outlet communicates with cavity through oil duct, and slide block rotation positioning pin mounting hole is a blind hole;
Pump cover is provided with transmission shaft mounting hole, slide block rotation positioning pin mounting hole and pump cover locating stud mounting hole, and slide block rotation positioning pin mounting hole is a blind hole;
The variable slide block is provided with spring lock block, Sealing mounting groove, oil guide slot and semicircle slide block rotation positioning pin mounting hole; Sealing is supported and the rectangular seal part is installed in the Sealing mounting groove on the variable slide block; The bottom that is installed in the Sealing mounting groove is supported in sealing, is used for supporting the rectangular seal part;
Rotor is provided with axis hole and is used for seven blade installation grooves of mounting blades; Seven blade installation grooves are evenly respectively on rotor; Two end faces at rotor are respectively equipped with an eccentric blade positioning ring mounting hole, and a blade all is installed in each blade installation groove, and blade can radially move in the blade installation groove; Two eccentric blade positioning rings are installed in respectively in the eccentric blade positioning ring mounting hole on 11 two end faces of rotor, and eccentric blade positioning ring is used for the lateral movement of limit blade;
Pump cover is installed on the pump housing through the pump cover mounting screw, is provided with the pump cover locating stud between the pump cover and the pump housing, and the pump cover locating stud is installed in the pump cover locating stud mounting hole and the pump cover locating stud mounting hole on the pump cover on the pump housing; Transmission shaft is installed in the transmission shaft mounting hole and the transmission shaft mounting hole on the pump cover on the pump housing; Transmission shaft mounting hole on the transmission shaft and the pump housing, the transmission shaft mounting hole on the pump cover adopt movingly; The rotor that blade and eccentric blade positioning ring are installed is installed on the transmission shaft in the cavity on the pump housing, and epitrochanterian axis hole and transmission shaft adopt interference fit; The variable slide block is installed in the cavity on the pump housing; Rotor chamber on the variable slide block is sleeved on the rotor; The semicircle slide block rotation positioning pin mounting hole that slide block rotation positioning pin passes on the variable slide block is installed in the slide block rotation positioning pin mounting hole and the slide block rotation positioning pin mounting hole on the pump cover on the pump housing; The variable slide block can be to swing in the cavity of axle center on the pump housing with slide block rotation positioning pin, and rectangular seal on the variable slide block and slide block rotation positioning pin are divided into feedback pressure oil pocket a and oil suction chamber b with the cavity on the pump housing; Side in the pump housing upper plenum is provided with the variable spring; Bottom in one end of variable spring and the pump housing upper plenum contact, and the other end withstands on the spring lock block on the variable slide block, and spring lock block can only be in the angle of qualification is that fulcrum is swung with the rotation positioning pin; Two limit positions of spring lock block are corresponding maximum pump discharge and minimum injection rate respectively; Spring lock block on the variable slide block and spring surface of contact are when displacement c, and there is precompression in spring, i.e. initializaing variable pressure; During d, spring reaches maximum compressibility in the minimum injection rate position for spring lock block on the variable slide block and spring surface of contact; Pressure-limit valve is located on the pump housing, the control oil duct of pressure-limit valve and the pressure oil output terminal UNICOM on the pump housing.
2. the 3 stops pressure feedback variable displacement vane pump of a kind of middle segment variable high speed pressure limiting according to claim 1; It is characterized in that: the pressure regulation power that rises of said variable spring is confirmed according to the lubrication needs of motor stage casing rotating speed;, between 2 bar～3.5 bar, be controlled between 2.3 bar～4.5 bar for the main oil gallery control structure for pump discharge.
3. the 3 stops pressure feedback of segment variable high speed pressure limiting becomes the discharge capacity method in one kind, and it is characterized in that: the pump displacement of pressure feedback variable vane pump is divided into maximum pump discharge, variable displacement and three kinds of modes of minimum injection rate, and its concrete grammar is following:
Spring lock block on A, the variable slide block and spring surface of contact are when displacement c; There is precompression in spring; Be initializaing variable pressure, when the moment of feedback oil pocket a hydraulic coupling generation was not enough to overcome the moment of pre-pressure of the spring generation, variable vane pump was in the maximum pump discharge state;
B, the moment that produces when feedback oil pocket a hydraulic coupling surpass the precompressed moment of spring output, but during less than the spring moment that d produces in the minimum injection rate position, variable vane pump is in the variable displacement scope;
C, the moment that produces when feedback oil pocket a hydraulic coupling surpass the spring moment that d produces in the minimum injection rate position, and during d, variable vane pump is in the minimum injection rate state in the minimum injection rate position for spring lock block on the variable slide block and spring surface of contact.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102980016A (en) * | 2012-12-03 | 2013-03-20 | 湖南机油泵股份有限公司 | Three-level variable displacement vane oil pump |
| CN104100825A (en) * | 2013-04-07 | 2014-10-15 | 上海通用汽车有限公司 | Engine oil pump with variable displacement |
| CN108894982A (en) * | 2018-08-21 | 2018-11-27 | 湖南机油泵股份有限公司 | A kind of variable displacement vane pump with sealing compensation function |
| CN109099302A (en) * | 2018-10-23 | 2018-12-28 | 湖南机油泵股份有限公司 | A kind of vane type lubricating oil pump that can improve volumetric efficiency |
| CN110778496A (en) * | 2018-07-24 | 2020-02-11 | 通用汽车环球科技运作有限责任公司 | Spring structure with sliding element |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4437819A (en) * | 1981-06-06 | 1984-03-20 | Zahnradfabrik Friedrichshafen, Ag | Controllable vane pump |
| DE4041248A1 (en) * | 1989-12-27 | 1991-07-04 | Toyoda Machine Works Ltd | ROTARY PISTON PUMP WITH VARIABLE DISPLACEMENT |
| US6763797B1 (en) * | 2003-01-24 | 2004-07-20 | General Motors Corporation | Engine oil system with variable displacement pump |
| CN101084378A (en) * | 2004-12-22 | 2007-12-05 | 麦格纳动力系有限公司 | Variable capacity vane pump with dual control chambers |
| CN101163883A (en) * | 2006-10-10 | 2008-04-16 | 约马液压机械有限公司 | Vane machine, in particular vane pump |
| CN101443557A (en) * | 2006-03-27 | 2009-05-27 | 盖茨公司 | Variable displacement sliding vane pump |
-
2011
- 2011-11-03 CN CN2011103427490A patent/CN102410214A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4437819A (en) * | 1981-06-06 | 1984-03-20 | Zahnradfabrik Friedrichshafen, Ag | Controllable vane pump |
| DE4041248A1 (en) * | 1989-12-27 | 1991-07-04 | Toyoda Machine Works Ltd | ROTARY PISTON PUMP WITH VARIABLE DISPLACEMENT |
| US6763797B1 (en) * | 2003-01-24 | 2004-07-20 | General Motors Corporation | Engine oil system with variable displacement pump |
| CN101084378A (en) * | 2004-12-22 | 2007-12-05 | 麦格纳动力系有限公司 | Variable capacity vane pump with dual control chambers |
| CN101443557A (en) * | 2006-03-27 | 2009-05-27 | 盖茨公司 | Variable displacement sliding vane pump |
| CN101163883A (en) * | 2006-10-10 | 2008-04-16 | 约马液压机械有限公司 | Vane machine, in particular vane pump |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980016A (en) * | 2012-12-03 | 2013-03-20 | 湖南机油泵股份有限公司 | Three-level variable displacement vane oil pump |
| CN104100825A (en) * | 2013-04-07 | 2014-10-15 | 上海通用汽车有限公司 | Engine oil pump with variable displacement |
| CN104100825B (en) * | 2013-04-07 | 2017-03-15 | 上海通用汽车有限公司 | Displacement-variable oil pump |
| CN110778496A (en) * | 2018-07-24 | 2020-02-11 | 通用汽车环球科技运作有限责任公司 | Spring structure with sliding element |
| CN108894982A (en) * | 2018-08-21 | 2018-11-27 | 湖南机油泵股份有限公司 | A kind of variable displacement vane pump with sealing compensation function |
| CN108894982B (en) * | 2018-08-21 | 2023-12-05 | 湖南机油泵股份有限公司 | Variable displacement vane pump with seal compensation function |
| CN109099302A (en) * | 2018-10-23 | 2018-12-28 | 湖南机油泵股份有限公司 | A kind of vane type lubricating oil pump that can improve volumetric efficiency |
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Application publication date: 20120411 |