KR950029579A - Clutchless Unidirectional Piston Variable Capacity Compressor - Google Patents

Clutchless Unidirectional Piston Variable Capacity Compressor Download PDF

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Publication number
KR950029579A
KR950029579A KR1019950007664A KR19950007664A KR950029579A KR 950029579 A KR950029579 A KR 950029579A KR 1019950007664 A KR1019950007664 A KR 1019950007664A KR 19950007664 A KR19950007664 A KR 19950007664A KR 950029579 A KR950029579 A KR 950029579A
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South Korea
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passage
swash plate
inclination angle
cross
branch
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KR1019950007664A
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Korean (ko)
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KR0139999B1 (en
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마사히로 가와구찌
마사노리 소노베
겐 스이또
도모히꼬 요꼬노
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이소가이 찌세이
가부시끼 가이샤 도요다 지도쇽끼 세이사꾸쇼
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Publication of KR0139999B1 publication Critical patent/KR0139999B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/14—Control
    • F04B27/16—Control of pumps with stationary cylinders
    • F04B27/18—Control of pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
    • F04B27/1804—Controlled by crankcase pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • F04B49/225—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves with throttling valves or valves varying the pump inlet opening or the outlet opening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/14—Control
    • F04B27/16—Control of pumps with stationary cylinders
    • F04B27/18—Control of pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
    • F04B27/1804—Controlled by crankcase pressure
    • F04B2027/1809—Controlled pressure
    • F04B2027/1813—Crankcase pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/14—Control
    • F04B27/16—Control of pumps with stationary cylinders
    • F04B27/18—Control of pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
    • F04B27/1804—Controlled by crankcase pressure
    • F04B2027/1809—Controlled pressure
    • F04B2027/1818—Suction pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/14—Control
    • F04B27/16—Control of pumps with stationary cylinders
    • F04B27/18—Control of pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
    • F04B27/1804—Controlled by crankcase pressure
    • F04B2027/1822—Valve-controlled fluid connection
    • F04B2027/1827—Valve-controlled fluid connection between crankcase and discharge chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/14—Control
    • F04B27/16—Control of pumps with stationary cylinders
    • F04B27/18—Control of pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
    • F04B27/1804—Controlled by crankcase pressure
    • F04B2027/184—Valve controlling parameter
    • F04B2027/1854—External parameters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/14—Control
    • F04B27/16—Control of pumps with stationary cylinders
    • F04B27/18—Control of pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
    • F04B27/1804—Controlled by crankcase pressure
    • F04B2027/184—Valve controlling parameter
    • F04B2027/1859—Suction pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/14—Control
    • F04B27/16—Control of pumps with stationary cylinders
    • F04B27/18—Control of pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
    • F04B27/1804—Controlled by crankcase pressure
    • F04B2027/1886—Open (not controlling) fluid passage
    • F04B2027/1895—Open (not controlling) fluid passage between crankcase and suction chamber

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

본 발명은 클러치없는 압축기에 걸리는 부하 토크의 증대를 완만하게 하는 것이다.The present invention is to moderately increase the load torque applied to the clutch without the clutch.

회전축(9)상에 지지된 사판(15)의 경사각이 최소 경사각으로 향하면, 사판(15)이 흡입 통로 개방 스프링(24)의 탄성력에 대항하여 전달통(28) 및 단면 수축 기구(21)를 누른다.When the inclination angle of the swash plate 15 supported on the rotating shaft 9 is directed to the minimum inclination angle, the swash plate 15 moves the transfer cylinder 28 and the cross-sectional contracting mechanism 21 against the elastic force of the suction passage opening spring 24. Press

단면 수축 기구(21)는 사판 경사각이 최소 경사각인때 위치 결정면(27)에 접하고, 흡입 통로(26)와 흡입실(3a)과의 연통을 차단한다. 사판 경사각이 최대인때 크랭크실(2a)과 흡입실(3a)는 통로(30), 단면 수축 기구(21)의 통내, 압력 방출 통로(21c)라고 하는 경로와, 통로(30), 단면 수축 기구(21)의 통내, 접속 통로(21d), 통로(14)라고 하는 경로를 거쳐서 연통한다. 사판 경사각이 최소인때 크랭크실(2a)과 흡입실(3a)은 통로(30), 단면 수축 기구(21)의 통내, 압력 방출 통로(21c)라고 하는 경로를 거쳐서 연통한다.The end face contraction mechanism 21 is in contact with the positioning surface 27 when the swash plate inclination angle is the minimum inclination angle, and blocks the communication between the suction passage 26 and the suction chamber 3a. When the swash plate inclination angle is the maximum, the crank chamber 2a and the suction chamber 3a are formed in the passage 30, the inside of the cylinder of the end face shrinkage mechanism 21, the path called the pressure release passage 21c, the passage 30, and the end face shrinkage. It communicates via the inside of the cylinder of the mechanism 21, the connection passage 21d, and the path | path 14. As shown in FIG. When the swash plate inclination angle is minimum, the crank chamber 2a and the suction chamber 3a communicate with each other via the passage 30, the inside of the cylinder of the end face shrinkage mechanism 21, and the pressure release passage 21c.

Description

클러치 없는 단방형 피스톤식 가변 용량 압축기Clutchless single-sided piston variable displacement compressor

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명을 구체화한 제1실시예의 압축기 전체의 측단면도, 제2도는 제1도의 A-A 선을 취한 단면도, 제3도는 제1도의 B-B선을 취한 단면도, 제4도는 사판 경사각이 최소 상태에 있는 압축기 전체의 측단면도.1 is a side cross-sectional view of the entire compressor of a first embodiment embodying the present invention, FIG. 2 is a cross-sectional view taken along line AA of FIG. 1, FIG. 3 is a cross-sectional view taken along line BB of FIG. 1, and FIG. Section view of the whole compressor in the machine.

Claims (7)

실린더 보어(12)내에서 단방향 피스톤(22)을 왕복 직선운동이 가능하게 수용하는 하우징내의 회전축(9)에 회전 지지체(8)를 부착하고, 이 회전 지지체(8)가 사판(15)을 경사 운동이 가능하게 지지하고, 크랭크실(2a)내의 압력과 흡입압과의 단방향 피스톤(22)을 개재한 차이에 따라서 사판(15)의 경사각을 제어하고, 토출압영역(3b)의 압력을 크랭크실(2a)로 공급하며 동시에 크랭크실(2a)의 압력을 흡입압 영역(3a)으로 방출하여 크랭크실(2a)내의 압력을 조절하는 크러치없는 단방향 피스톤식 가변용량 압축기에 있어서, 영(zero)이 아닌 토출 용량을 가지도록 사판의 최소 경사각을 규정하는 최소 경사각 규정 수단(21,27)과, 최소 용량 상태에서는 외부 냉매 회로(35)에서의 냉매 순환을 정지시키는 냉매 순환 저지 수단(21,32)과, 크랭크실(2a)의 압력을 흡입압 영역(3a)으로 방출하기 위한 압력 방출 통로상으로 전진 및 후퇴 가능하게 배치된 단면 수축 기구(21)를 구비하고, 사판(15)의 최대 경사각형 최소 경사각 사이의 중간 경사각 범위의 일부에서는 압력 방출 통로의 통과 단면적을 상기 단면 수축 기구(21)로써 수축하도록 사판(15)의 경사 운동의 적어도 일부에 따라 단면 수축 기구(21)를 연동시키고, 사판(15)이 최대 경사각 상태에 있을때의 압력 방출 통로의 통과 단면적보다 사판(15)이 중간 경사각 범위에 있을때의 압력 방출 통로의 통과 단면적을 작게하도록 한 것을 특징으로 하는 가변용량 압축기.The rotating support 8 is attached to the rotating shaft 9 in the housing that reciprocally linearly receives the unidirectional piston 22 in the cylinder bore 12, and the rotating support 8 inclines the swash plate 15. It supports movement and controls the inclination angle of the swash plate 15 according to the difference through the unidirectional piston 22 between the pressure in the crank chamber 2a and the suction pressure, and cranks the pressure in the discharge pressure region 3b. In a clutchless one-way piston type variable displacement compressor which supplies to the chamber 2a and simultaneously releases the pressure of the crank chamber 2a to the suction pressure region 3a to adjust the pressure in the crank chamber 2a. Minimum inclination angle defining means (21, 27) for defining the minimum inclination angle of the swash plate to have a discharge capacity other than that of the swash plate, and refrigerant circulation blocking means (21, 32) for stopping the refrigerant circulation in the external refrigerant circuit (35) in the minimum capacity state. ) And the pressure of the crank chamber 2a to the suction pressure region 3a. A cross-sectional shrinkage mechanism 21 is disposed so as to be forward and retractable on the pressure release passage for releasing, and in a part of the intermediate inclination angle range between the maximum inclination angle and the minimum inclination angle of the swash plate 15, the cross-sectional area of the passage of the pressure relief passage is defined. The cross-sectional shrinkage mechanism 21 is interlocked according to at least a part of the inclined motion of the swash plate 15 so as to contract with the cross-sectional shrinkage mechanism 21, and the cross-sectional area of the pressure releasing passage when the swash plate 15 is at the maximum inclination angle state. A variable displacement compressor characterized in that the passage cross-sectional area of the pressure relief passage when the swash plate (15) is in the middle inclination angle range is made small. 제1항에 있어서, 외부 냉매 회로(35)로부터 흡입압 영역(32)으로 냉매 가스를 도입이 불가능한 폐쇄 위치와 도입이 가능한 개방 위치예로 상기 단면 수축 기구(21)를 전환 가능하게 배치하고, 상기 단면 수축 기구(21)를 사판(15)의 경사 운동에 연동시켜서 사판(15)이 최소 경사각일때는 단면 수축 기구(21)가 폐쇄 위치에 있도록 하여 냉매 순환지지 수단을 구성한 것을 특징으로 하는 가변용량 압축기.2. The cross-sectional shrinkage mechanism 21 is arranged so as to be switchable in an example of a closed position in which refrigerant gas cannot be introduced into the suction pressure region 32 from an external refrigerant circuit 35 and an open position in which introduction can be made. The cross-sectional shrinkage mechanism 21 is linked to the inclined motion of the swash plate 15, so that when the swash plate 15 is at the minimum inclination angle, the cross-section shrinkage mechanism 21 is in a closed position so that the refrigerant circulation support means is configured. Capacity compressor. 제1항 또는 제2항에 있어서, 상기 압력 방출 통로는 제1분기 통로(21c)와 제2분기 통로(14a)로 분기하고, 사판이 최대 경사각일때는 단면 수축기구(21)가 제2분기 통로(14a)를 개방하는 위치로 배치되고, 사판(15)이 중간 경사각 범위에 있을때는 단면 수축 기구(21)가 제2분기 통로(14)를 폐쇄하는 위치로 배치되고, 제1분기통로(21c)는 정상에서 개방하여 있는 것을 특징으로 하는 가변용량 압축기.3. The pressure reducing passage according to claim 1 or 2, wherein the pressure release passage branches into the first branch passage (21c) and the second branch passage (14a), and when the swash plate has the maximum inclination angle, the cross-sectional shrinkage mechanism (21) has a second branch. When the swash plate 15 is in the intermediate inclination angle range, the cross-sectional shrinkage mechanism 21 is disposed in a position to close the second branch passage 14, and the first branch passage ( 21c) is a variable displacement compressor, characterized in that open at the top. 제1항 또는 제2항에 있어서, 사판(15)이 최소 경사각 상태에 있을 때 압력 방출 통로의 통과 단면적보다도 사판(15)이 중간 경사각 범위에 있을 때 압력 방출 통로의 통과 단면적을 작게하도록 한 것을 특징으로 하는 가변용량 압축기.The method according to claim 1 or 2, wherein the passage cross-sectional area of the pressure release passage is made smaller when the swash plate 15 is in the middle inclination angle range than the passage cross-sectional area of the pressure release passage when the swash plate 15 is in the minimum inclination angle state. Variable capacity compressor. 제4항에 있어서, 압력 방출 통로를 제1분기 통로(21c)와 제2분기 통로(14a)와 제3분기 통로(14b)로 분기하고, 사판(15)이 최대 경사각일때는 단면 수축 기구(21)가 제2분기 통로(14a)를 개방하며 동시에 제3분기 통로(14b)를 폐쇄하는 위치로 배치되고, 사판(15)이 중간 경사각 범위에 있을 때에는 단면 수축 기구(21)가 제2분기 통로(14a) 및 제3분기 통로(14b)를 폐쇄하는 위치로 배치되고, 사판(15)이 최소 경사각 일때는 단면 수축기구(21)가 제2분기 통로(14a)를 폐쇄하며 동시에 제3분기 통로(14b)를 개방하는 위치로 배치되고, 상기 제1분기 통로(21c)는 정상에서 개방되어 있는 것을 특징으로 하는 가변용량 압축기.5. The pressure reducing passage is divided into the first branch passage (21c), the second branch passage (14a), and the third branch passage (14b), and when the swash plate (15) has the maximum inclination angle, 21 is placed in a position to open the second branch passage 14a and at the same time close the third branch passage 14b, and when the swash plate 15 is in the intermediate inclination angle range, the cross-sectional shrinkage mechanism 21 moves to the second branch. It is arranged in a position to close the passage 14a and the third branch passage 14b, and when the swash plate 15 is the minimum inclination angle, the cross-sectional contracting mechanism 21 closes the second branch passage 14a and at the same time the third branch. A variable displacement compressor, characterized in that it is arranged in a position to open the passage (14b), and the first branch passage (21c) is open at the top. 제5항에 있어서, 압력 방출 통로의 제1분기 통로(21c)는 단면 수축 기구(21)를 통과하는 것을 특징으로 하는 가변용량 압축기.6. A variable displacement compressor according to claim 5, characterized in that the first branch passage (21c) of the pressure relief passage passes through the cross-sectional shrinkage mechanism (21). 제5항에 있어서, 상기 단면 수축 기구(21)에는 접속 통로(21d)가 설치되어 있고, 사판(15)이 최대 경사각에 있을때는 접속 통로(21d)와 제2분기 통로(14a)가 접속하는 위치에 단면 수축 기구(21)가 배치되고, 사판(15)이 중각 경사각 범위에 있을때는 접속 통로(21d)가 제2분기 통로(14a) 및 제3분기 통로(14b)와 접속하지 않는 위치에 단면 수축 기구(21)가 배치되고, 사판(15)이 최소 경사각에 있을 때에는 접속 통로(21d)와 제3분기 통로(14b)가 접속하는 위치에 단면 수축 기구가 배치되는 것을 특징으로 하는 가변용량 압축기.A connecting passage (21d) is provided in the end face shrinkage mechanism (21), and when the swash plate (15) is at the maximum inclination angle, the connecting passage (21d) and the second branch passage (14a) are connected. When the end face shrinkage mechanism 21 is arrange | positioned at the position and the swash plate 15 is in the intermediate angle inclination range, it is in the position which the connection passage 21d does not connect with the 2nd branch path 14a and the 3rd branch path 14b. The cross-sectional shrinkage mechanism 21 is arranged, and when the swash plate 15 is at the minimum inclination angle, the variable capacitance, wherein the cross-sectional shrinkage mechanism is arranged at a position where the connection passage 21d and the third branch passage 14b are connected. compressor. ※ 참고사항 : 최초출원 내용에 의하여 공개되는 것임.※ Note: This is to be disclosed by the original application.
KR1019950007664A 1994-04-15 1995-04-03 Unidirectional pistonless variable displacement compressor without clutch KR0139999B1 (en)

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JPH09256947A (en) * 1996-03-19 1997-09-30 Toyota Autom Loom Works Ltd Valve seat structure in compressor
JPH09250452A (en) * 1996-03-19 1997-09-22 Toyota Autom Loom Works Ltd Lubricating structure in compressor
JP3255008B2 (en) * 1996-04-17 2002-02-12 株式会社豊田自動織機 Variable displacement compressor and control method thereof
US6010312A (en) * 1996-07-31 2000-01-04 Kabushiki Kaisha Toyoda Jidoshokki Seiksakusho Control valve unit with independently operable valve mechanisms for variable displacement compressor
JPH1054349A (en) * 1996-08-12 1998-02-24 Toyota Autom Loom Works Ltd Variable displacement compressor
JPH10325393A (en) * 1997-05-26 1998-12-08 Zexel Corp Variable displacement swash plate type clutchless compressor
WO1999006700A1 (en) * 1997-07-30 1999-02-11 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Control valve of variable capacity compressor
JP2003013863A (en) * 2001-06-29 2003-01-15 Toyota Industries Corp Capacity control device for variable displacement compressor
JPWO2004046549A1 (en) * 2002-11-19 2006-03-16 株式会社ヴァレオサーマルシステムズ Control unit for variable capacity compressor
JP4501112B2 (en) * 2002-12-27 2010-07-14 株式会社ヴァレオサーマルシステムズ Control unit for variable capacity compressor
JP4656044B2 (en) * 2006-11-10 2011-03-23 株式会社豊田自動織機 Compressor suction throttle valve

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