WO2010041883A2 - Vane pump with variable discharge volume - Google Patents
Vane pump with variable discharge volume Download PDFInfo
- Publication number
- WO2010041883A2 WO2010041883A2 PCT/KR2009/005758 KR2009005758W WO2010041883A2 WO 2010041883 A2 WO2010041883 A2 WO 2010041883A2 KR 2009005758 W KR2009005758 W KR 2009005758W WO 2010041883 A2 WO2010041883 A2 WO 2010041883A2
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- WO
- WIPO (PCT)
- Prior art keywords
- cam ring
- discharge
- compressed
- piston
- spring
- Prior art date
Links
- 230000006835 compression Effects 0.000 claims abstract description 44
- 238000007906 compression Methods 0.000 claims abstract description 44
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 5
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/18—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber
- F04C14/22—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members
- F04C14/223—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members using a movable cam
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/063—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents with coaxially-mounted members having continuously-changing circumferential spacing between them
- F04C18/067—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents with coaxially-mounted members having continuously-changing circumferential spacing between them having cam-and-follower type drive
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
- F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F04C2/348—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the vanes positively engaging, with circumferential play, an outer rotatable member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/05—Speed
- F04C2270/052—Speed angular
Definitions
- the present invention relates to a variable discharge amount vane pump, and more particularly, to a variable discharge amount vane pump in which the discharge amount is varied by the rotational speed difference between the rotor and the cam ring.
- the conventional vane pump has a structure in which a cam ring is fixedly installed in the pump housing, and suction side and discharge side plates are respectively installed at both front and rear sides of the cam ring.
- a compression chamber of a substantially elliptical space in which the compressed medium is compressed is formed inside the cam ring.
- the rotor supported by the drive shaft is rotatably installed in the compression chamber inside the cam ring, and a plurality of vane grooves are radially formed on the outer circumferential surface of the rotor, and the vane groove is accommodated in the vane groove so as to reciprocate in the radial direction. Is inserted.
- the end surface of the vane comes into contact with the approximately elliptical inner circumferential surface of the cam ring by centrifugal force, and a compressed medium such as oil is sucked through the suction side side plate and sucked into the compression chamber of the cam ring.
- the compressed medium to be compressed is compressed by volume reduction inside the cam ring and then discharged through the discharge side plate.
- an object of the present invention is to provide a variable discharge amount vane pump which can change the discharge amount by rotating and stopping the cam ring in accordance with the change of the discharge pressure, and can improve the discharge efficiency.
- the pump housing An inner circumferential surface and an outer circumferential surface having an elliptical cross-sectional shape, forming a compression chamber in which a compressed medium is compressed, and a cam ring rotatably received in the pump housing; A rotor radially accommodated on an outer circumferential surface of the vane to rotate in the compression chamber of the cam ring and to compress the compressed medium; Contacting an outer circumferential surface of the cam ring and rotating the cam ring when the discharge pressure of the compressed medium is equal to or greater than a set pressure; It provides a variable discharge amount vane pump comprising a cam ring rotation control unit.
- the cam ring rotation control section the sliding contact with the outer peripheral surface of the cam ring, the piston reciprocating in accordance with the rotation of the cam ring; If the discharge pressure of the compressed medium is less than the set pressure it is preferable to include a spring for providing an elastic force to the piston so that the cam ring stops rotating.
- the cam ring may rotate to compress the spring while the piston moves toward the spring.
- the cylinder rotation control unit may further include a spring adjustment bolt for adjusting the displacement of the spring, thereby varying the elastic force of the spring applied to the piston.
- a discharge passage for guiding the discharge of the compressed medium compressed in the compression chamber may be formed, and the discharge side side plate may be disposed to face the suction side side plate with the cam ring therebetween.
- the cam ring is rotated and stopped in response to the change in the discharge pressure, and the discharge amount can be varied by the rotational speed difference between the rotor and the cam ring, and the discharge efficiency can be improved.
- FIG. 1 is a cross-sectional view of a variable discharge vane pump according to a first embodiment of the present invention
- FIG. 2 is an exploded perspective view of the main part of FIG. 1;
- FIG. 3 is a perspective view of the combination of FIG.
- FIGS. 4 and 5 are longitudinal cross-sectional views illustrating the operation of the cam ring and the cam ring rotation control unit of the variable discharge amount vane pump according to the first embodiment of the present invention
- FIGS. 6 and 7 are longitudinal cross-sectional views showing the operation of the cam ring and the cam ring rotation control unit of the variable discharge amount vane pump according to the second embodiment of the present invention.
- variable discharge vane pump according to a first embodiment of the present invention.
- the variable discharge vane pump according to the first embodiment of the present invention includes a pump housing 11, a cam ring 21 rotatably received in the pump housing 11, a rotor 25 for compressing a compressed medium,
- the cam ring rotation control section 31 controls the rotation of the cam ring 21 to vary the discharge amount of the medium to be compressed.
- the pump housing 11 has a suction port 13 through which the compressed medium is sucked into the compression chamber 23.
- the cam ring 21 is rotatably housed in the pump housing 11.
- the inside of the cam ring 21 forms a compression chamber 23 in which the compressed medium is compressed, and the inner circumferential surface of the cam ring 21 has an elliptical cross section.
- the vane 29 of the rotor 25 to be described later is in contact with the inner circumferential surface of the cam ring 21.
- the outer circumferential surface of the cam ring 21 of the variable discharge vane pump according to the present invention has a protrusion 21a having at least one maximum radius of curvature, and the outer circumferential surface of the cam ring 21 has a sliding contact between the piston 33 to be described later. do.
- the cam ring 21 has an elliptical cross-sectional shape of the inner circumferential surface and the outer circumferential surface.
- a rotor 25 supported by the drive shaft 5 of the motor (not shown) and compressing the compressed medium is rotatably provided.
- a plurality of vane grooves 27 are radially formed on the outer circumferential surface of the rotor 25, and the vane grooves 27 are housed in the vane grooves 27 so as to be in contact with the inner circumferential surface of the cam ring 21. Accordingly, the vanes 29 come into contact with the inner circumferential surface of the cam ring 21 and reciprocate in the radial direction of the rotor 25.
- the cam ring rotation control unit 31 contacts the outer circumferential surface of the cam ring 21 and controls the rotation of the cam ring 21.
- the cam ring rotation control unit 31 slidably contacts the outer circumferential surface of the cam ring 21 and the cam ring 21 when the discharge pressure of the piston 33 and the compressed medium to be reciprocated according to the rotation of the cam ring 21 is less than the set pressure.
- Has a spring 35 which provides an elastic force to the piston 33 to stop rotation.
- one end of the piston 33 is in close contact with the outer circumferential surface of the cam ring 21, and the other end of the piston 33 is supported by the spring 35.
- the piston 33 compresses and decompresses the spring 35 according to the rotation of the cam ring 21.
- the spring 35 in this embodiment has a coil shape, and the spring 35 is housed in a spring receiving portion 15 formed in the pump housing 11. One end of the spring 35 supports the piston 33, and the other end of the spring 35 is supported to be accommodated in the spring accommodating portion 15 by the spring support plate 37.
- the piston 33 moves toward the spring 35 by the rotation of the cam ring 21, and the spring 35 is compressed, and the discharge pressure of the compressed medium is increased. If it is less than the set pressure, the piston 33 presses the outer periphery of the cam ring 21 by the elastic force of the spring 35, and the cam ring 21 rotates and stops.
- the elastic force of the spring 35 is adjusted by the spring adjustment bolt 39.
- the spring adjustment bolt 39 is coupled to the spring support plate 37 to adjust the displacement of the spring 35 accommodated in the spring accommodating portion 15 by pressing and releasing the other end of the spring 35, thereby providing a piston ( The elastic force of the spring 35 applied to 33 can be varied.
- the suction side side plate 51 and the discharge side side plate 55 are disposed to face each other with the cam ring 21 interposed therebetween.
- the suction side plate 51 is provided on one side of the cam ring 21, and a suction passage 53 is formed to guide suction of the compressed medium to the compression chamber 23.
- the discharge side plate 55 is provided on the other side of the cam ring 21, and a discharge passage 57 for guiding the discharge of the compressed medium compressed in the compression chamber 23 is formed.
- reference numeral 61 which is not described, is a discharge guide for guiding the discharge of the compressed medium passing through the discharge side side plate 55 from the compression chamber 23, and the discharge port guide 61 may be divided into two.
- the nipple 62 is attached to the discharge guide 61.
- reference numeral 63 which is not described, is a main cover that covers one side of the pump housing 11, and reference numeral 65 is an auxiliary cover that covers the other side of the pump housing 11.
- reference numeral 67 is a bearing for supporting a thrust load acting on the suction side side plate 51 and the discharge side side plate 55
- reference numeral 69 is a drive shaft bearing for rotatably supporting the drive shaft 5.
- reference numeral 71 denotes an airtight packing for maintaining the airtightness inside the pump housing 11, and reference numeral 73 is an O-ring for keeping the airtightness of the main cover 63 and the auxiliary cover 65.
- variable discharge amount vane pump when the rotor 25 rotates in accordance with the drive of the drive shaft 5, the tip of the vane 29 provided on the rotor 25 is subjected to centrifugal force. It rotates in contact with the inner peripheral surface of the compression chamber 23 of the cam ring 21 by this.
- the compressed medium is sucked into the compression chamber 23 of the cam ring 21 through the suction passage 53 of the suction side side plate 51 via the suction port 13 and then rotates according to the rotation of the rotor 25. It is compressed by the volume reduction and then discharged through the discharge passage 57 of the discharge side plate 55.
- the cam ring 21 rotates in the rotational direction of the rotor 25.
- the discharge pressure is high, the rotational force of the cam ring 21 increases. Done.
- the cam ring 21 is rotated, as shown in FIG.
- the piston 33 pressurizing the outer circumferential surface of the cam ring 21 slides along the outer circumferential surface of the cam ring 21 and moves toward the spring 35 to compress the spring 35.
- the discharge amount compressed and discharged in the compression chamber 23 is varied by the difference in rotation speed between the rotor 25 and the cam ring 21.
- the rotor 25 and the cam ring 21 rotate at the same rotational speed, the compression of the compressed medium does not occur in the compression chamber 23 of the cam ring 21, and the discharge is stopped.
- the rotational force of the cam ring 21 is smaller than the friction force between the piston 33 and the outer circumferential surface of the cam ring 21, so that the piston 33 moves toward the spring 35.
- the piston 33 does not exceed the protrusion 21a having the maximum radius of curvature of the outer circumferential surface of the cam ring 21 so that the cam ring 21 stops rotation.
- the medium to be compressed is compressed in the compression chamber 23 of the cam ring 21, so that the discharge amount is maximized.
- the discharge is stopped and the discharge amount becomes zero.
- the discharge amount is 50%. If the cam ring 21 stops rotating when the rotor 25 rotates 10 times, the discharge amount is 100%.
- the cam ring 21 rotates or stops rotating according to the set discharge pressure change of the compressed medium, that is, rotates between the rotor 25 and the cam ring 21.
- the number difference occurs and the discharge amount compressed and discharged in the compression chamber 23 can be varied and the discharge efficiency can be improved.
- variable discharge vane pump according to a second embodiment of the present invention illustrates a variable discharge vane pump according to a second embodiment of the present invention.
- the variable discharge amount vane pump according to the second embodiment of the present invention is provided between the piston 33 and the spring 35 to transmit the elastic force of the spring 35 to the piston 33. It further has a rod 41.
- the piston 33 is installed in the pump housing 11 so as to reciprocate in a transverse direction with respect to the compression direction of the spring 35.
- the rod 41 is provided between the piston 33 and the spring 35 and is reciprocally housed together with the spring 35 in the spring receiving portion 15 formed in the pump housing 11.
- a plurality of rollers 43 are mounted on the outer circumferential surface of the rod 41 so as to move up and down while rolling with the inner circumferential surface of the spring receiving portion 15.
- an inflow passage 17 through which the compressed medium discharged from the compression chamber 23 flows is formed in the spring accommodating portion 15.
- the rod 41 is elevated in the spring receiving portion 15 by the discharge pressure of the compressed medium discharged from the compression chamber 23, and the inclined portion 41a of the rod 41 is inclined of the piston 33.
- the piston 33 moves up and down along the portion 33a, the piston 33 approaches and is spaced apart from the compression chamber 23 to rotate and rotate the cam ring 21 in accordance with the discharge pressure change.
- variable discharge amount vane pump in the variable discharge amount vane pump according to the second embodiment of the present invention, when the rotor 25 rotates, the tip of the vane 29 installed in the rotor 25 has a centrifugal force in the compression chamber of the cam ring 21.
- the compressed medium rotated in contact with the inner circumferential surface of the 23 and sucked into the compression chamber 23 is compressed by volume reduction as the rotor 25 rotates, and then the discharge passage 57 of the discharge side plate 55 is pressed. It is discharged through.
- the cam ring 21 rotates in the rotational direction of the rotor 25.
- the discharge pressure is high, the rotational force of the cam ring 21 increases. Done.
- a part of the discharged compressed medium flows into the inflow passage 17 formed in the pump housing 11 and acts to lift and lower the rod 41.
- the rotational force of the cam ring 21 is greater than the friction force between the piston 33 and the outer peripheral surface of the cam ring 21, so that the cam ring 21 rotates, and at the same time the inflow passage ( The rod 41 is pushed upward by the discharge pressure of the to-be-compressed medium flowing into the cylinder 17, and the inclined portion 33a of the piston 33 is in close contact with the inclined portion 41a of the rod 41.
- the piston 33 pressurizing the outer circumferential surface of the cam ring 21 slides along the outer circumferential surface of the cam ring 21 and moves to the outside of the pump housing 11.
- the discharge amount compressed and discharged in the compression chamber 23 is varied by the difference in rotation speed between the rotor 25 and the cam ring 21.
- the rotor 25 and the cam ring 21 rotate at the same rotational speed, the compression of the compressed medium does not occur in the compression chamber 23 of the cam ring 21, and the discharge is stopped.
- the rotational force of the cam ring 21 is smaller than the friction force between the piston 33 and the outer circumferential surface of the cam ring 21 and at the same time discharge of the compressed medium introduced into the inflow passage 17.
- the rod 41 is not pushed upward by the pressure, and as shown in FIG. 7, the piston 33 presses the outer circumferential surface of the cam ring 21, and the piston 33 is the maximum of the outer circumferential surface of the cam ring 21.
- the cam ring 21 stops rotating because it does not exceed the protrusion 21a having the radius of curvature. At this time, when the rotor 25 is rotated, the medium to be compressed is compressed in the compression chamber 23 of the cam ring 21, so that the discharge amount is maximized.
- the cam ring 21 rotates or stops rotating according to the set discharge pressure change of the compressed medium, that is, rotates between the rotor 25 and the cam ring 21.
- the number difference occurs and the discharge amount compressed and discharged in the compression chamber 23 can be varied and the discharge efficiency can be improved.
- an inner circumferential surface and an outer circumferential surface have an elliptical cross-sectional shape, form a compression chamber into which a compressed medium is compressed, and a cam ring rotatably accommodated in a pump housing, and rotate the compression chamber and compress the compressed medium
- a cam ring rotation control unit 31 for controlling the rotation of the cam ring so that the cam ring rotates when the discharge pressure of the compressed medium is equal to or higher than the set pressure and the cam ring stops rotating when the discharge pressure of the compressed medium is lower than the set pressure.
- the amount of discharge can be varied by rotating and rotating the cam ring in accordance with the change of the discharge pressure, thereby improving the discharge efficiency.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
Description
Claims (6)
- 펌프하우징과;Pump housing;내주면과 외주면이 타원형의 단면형상을 가지고 피압축매체가 압축되는 압축실을 형성하며, 상기 펌프하우징에 회전가능하게 수용되는 캠링과;An inner circumferential surface and an outer circumferential surface having an elliptical cross-sectional shape, forming a compression chamber in which a compressed medium is compressed, and a cam ring rotatably received in the pump housing;외주면에 방사상으로 복수의 베인이 출몰가능하게 수용되어, 상기 캠링의 압축실에서 회전하며 상기 피압축매체를 압축하는 로터와;A rotor radially accommodated on an outer circumferential surface of the vane to rotate in the compression chamber of the cam ring and to compress the compressed medium;상기 캠링의 외주면에 접촉하며, 상기 피압축매체의 토출 압력이 설정된 압력 이상이면 상기 캠링을 회전시키고 상기 피압축매체의 토출 압력이 설정된 압력 미만이면 상기 캠링이 회전정지하도록 상기 캠링의 회전을 제어하는 캠링 회전 제어부를 포함하는 것을 특징으로 하는 가변 토출량 베인 펌프.Contacting an outer circumferential surface of the cam ring and rotating the cam ring when the discharge pressure of the compressed medium is equal to or greater than a set pressure; and controlling the rotation of the cam ring to stop rotation of the cam ring when the discharge pressure of the compressed medium is less than the set pressure. A variable discharge amount vane pump comprising a cam ring rotation control section.
- 제1항에 있어서,The method of claim 1,상기 캠링 회전 제어부는,The cam ring rotation control unit,상기 캠링의 외주면에 슬라이딩가능하게 접촉하며, 상기 캠링의 회전에 따라 왕복운동하는 피스톤과;A piston slidably contacting an outer circumferential surface of the cam ring and reciprocating in accordance with the rotation of the cam ring;상기 피압축매체의 토출 압력이 설정된 압력 미만이면 상기 캠링이 회전정지하도록 상기 피스톤에 탄성력을 제공하는 스프링을 포함하는 것을 특징으로 하는 가변 토출량 베인 펌프.And a spring providing an elastic force to the piston so that the cam ring rotates when the discharge pressure of the medium to be compressed is less than a set pressure.
- 제2항에 있어서,The method of claim 2,상기 피압축매체의 토출 압력이 설정된 압력 이상이면, 상기 캠링은 회전하여 상기 피스톤이 상기 스프링을 향해 이동하며 상기 스프링을 압축시키는 것을 특징으로 하는 가변 토출량 베인 펌프.And when the discharge pressure of the compressed medium is equal to or greater than a set pressure, the cam ring rotates to move the piston toward the spring and compress the spring.
- 제2항에 있어서,The method of claim 2,상기 실린더 회전 제어부는 상기 스프링의 변위를 조절하는 스프링 조절볼트를 더 포함하는 것을 특징으로 하는 가변 토출량 베인 펌프.The cylinder rotation control unit further comprises a variable discharge vane pump, characterized in that the spring adjustment bolt for adjusting the displacement of the spring.
- 제2항에 있어서,The method of claim 2,상기 피스톤과 상기 스프링 사이에 마련되어, 상기 피압축매체의 토출 압력에 의해 승강하며 상기 스프링의 탄성력을 상기 피스톤에 전달하는 로드를 더 포함하며,A rod provided between the piston and the spring, the rod lifting and lowering by the discharge pressure of the compressed medium and transmitting the elastic force of the spring to the piston;상기 피스톤과 상기 로드가 상호 접촉하는 상기 피스톤과 상기 로드의 각 단부에는 각각 상반되는 경사를 갖는 경사부가 형성되어 있는 것을 특징으로 하는 가변 토출량 베인 펌프.A variable discharge amount vane pump, characterized in that the inclined portions having opposite inclinations are formed at each end of the piston and the rod, the piston and the rod contact each other.
- 제1항에 있어서,The method of claim 1,상기 압축실로 피압축매체의 흡입을 안내하는 흡입통로를 형성하며, 상기 캠링의 일측에 마련되는 흡입측 측판과;A suction side side plate formed at one side of the cam ring to form a suction passage for guiding suction of the compressed medium into the compression chamber;상기 압축실에서 압축된 피압축매체의 토출을 안내하는 토출통로를 형성하며, 상기 캠링을 사이에 두고 상기 흡입측 측판과 대향 배치되는 토출측 측판을 포함하는 것을 특징으로 하는 가변 토출량 베인 펌프.And a discharge side side plate which forms a discharge passage for guiding the discharge of the compressed medium compressed in the compression chamber, and is disposed to face the suction side side plate with the cam ring therebetween.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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CN2009801403863A CN102187098A (en) | 2008-10-09 | 2009-10-08 | Vane pump with variable discharge volume |
US13/123,528 US20110194962A1 (en) | 2008-10-09 | 2009-10-08 | Vane pump with variable discharge volume |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2008-0098984 | 2008-10-09 | ||
KR1020080098984A KR101004867B1 (en) | 2008-10-09 | 2008-10-09 | Variable discharge vane pump |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2010041883A2 true WO2010041883A2 (en) | 2010-04-15 |
WO2010041883A3 WO2010041883A3 (en) | 2010-07-29 |
Family
ID=42101095
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2009/005758 WO2010041883A2 (en) | 2008-10-09 | 2009-10-08 | Vane pump with variable discharge volume |
Country Status (4)
Country | Link |
---|---|
US (1) | US20110194962A1 (en) |
KR (1) | KR101004867B1 (en) |
CN (1) | CN102187098A (en) |
WO (1) | WO2010041883A2 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018119346A1 (en) * | 2016-12-23 | 2018-06-28 | Borgwarner Inc. | Variable output pump |
CN107143379A (en) * | 2017-07-10 | 2017-09-08 | 游涛 | Engine |
KR101976976B1 (en) * | 2018-01-05 | 2019-05-09 | 군산대학교산학협력단 | Pressure adjustable type fluid pump |
CN115324888B (en) * | 2021-05-10 | 2024-06-11 | 北京汽车动力总成有限公司 | Oil pump and car |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19990083448A (en) * | 1998-04-23 | 1999-11-25 | 요시다 도시오 | Variable displacement pump |
JP2008002304A (en) * | 2006-06-21 | 2008-01-10 | Nachi Fujikoshi Corp | Variable displacement vane pump |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2612114A (en) * | 1948-04-06 | 1952-09-30 | Thompson Grinder Co | Vane pump or motor |
US3761206A (en) * | 1971-02-02 | 1973-09-25 | Shively Bros Inc | Fluid device |
JPH07293455A (en) * | 1994-04-28 | 1995-11-07 | Toyooki Kogyo Co Ltd | Vane pump |
KR100432897B1 (en) * | 2000-10-11 | 2004-05-22 | 주식회사 만도 | Vane pump |
ATE513126T1 (en) * | 2002-07-19 | 2011-07-15 | Eaton Ind Corp | CAM RING BEARING FOR FUEL DELIVERY SYSTEM |
JP4499694B2 (en) | 2006-09-05 | 2010-07-07 | ユニシア ジェーケーシー ステアリングシステム株式会社 | Variable displacement pump |
-
2008
- 2008-10-09 KR KR1020080098984A patent/KR101004867B1/en not_active IP Right Cessation
-
2009
- 2009-10-08 US US13/123,528 patent/US20110194962A1/en not_active Abandoned
- 2009-10-08 CN CN2009801403863A patent/CN102187098A/en active Pending
- 2009-10-08 WO PCT/KR2009/005758 patent/WO2010041883A2/en active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19990083448A (en) * | 1998-04-23 | 1999-11-25 | 요시다 도시오 | Variable displacement pump |
JP2008002304A (en) * | 2006-06-21 | 2008-01-10 | Nachi Fujikoshi Corp | Variable displacement vane pump |
Also Published As
Publication number | Publication date |
---|---|
KR20100039974A (en) | 2010-04-19 |
KR101004867B1 (en) | 2010-12-28 |
US20110194962A1 (en) | 2011-08-11 |
CN102187098A (en) | 2011-09-14 |
WO2010041883A3 (en) | 2010-07-29 |
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