JPH0188090U

JPH0188090U -

Info

Publication number: JPH0188090U
Application number: JP18332987U
Authority: JP
Priority date: 1987-11-30
Filing date: 1987-11-30
Publication date: 1989-06-09
Anticipated expiration: 2002-11-30
Also published as: JPH0617028Y2

Description

[Brief explanation of the drawing]

第１〜５図は本考案に係る可変容量ベーン型回
転圧縮機の一実施例を示す図であり、第１図はそ
の正面断面図、第２図は第１図の−線矢視断
面図、第３，４図はそれぞれその制御部材、制御
弁および駆動機構の構成を示す要部拡大断面図、
第５図はそのアクチユエータの構成および可動板
の作動を示す構成図である。１……カムリング、２……ロータ、３……圧縮
室、４……フロントプレート、５……リヤプレー
ト、６……ハウジング、７……ヘツドカバー、８
……吸入室、９……バイパスポート、１０……可
動板、１１……バイパス開口部、１６……アクチ
ユエータ、２６……制御弁、２７……ボール弁体
（第１弁体）、２８……ポペツト弁体（第２弁体
）、３４……ベローズ（制御部材）、４２……ソ
レノイド（駆動機構）、４４……押圧部材、４７
……コイルスプリング（弾性部材）。 1 to 5 are views showing an embodiment of a variable capacity vane type rotary compressor according to the present invention, FIG. 1 is a front sectional view thereof, and FIG. 2 is a sectional view taken along the line - in FIG. 1. , 3 and 4 are enlarged sectional views of main parts showing the configuration of the control member, control valve, and drive mechanism, respectively;
FIG. 5 is a configuration diagram showing the configuration of the actuator and the operation of the movable plate. 1...Cam ring, 2...Rotor, 3...Compression chamber, 4...Front plate, 5...Rear plate, 6...Housing, 7...Head cover, 8
... Suction chamber, 9 ... Bypass port, 10 ... Movable plate, 11 ... Bypass opening, 16 ... Actuator, 26 ... Control valve, 27 ... Ball valve body (first valve body), 28 ... ... Poppet valve body (second valve body), 34 ... Bellows (control member), 42 ... Solenoid (drive mechanism), 44 ... Pressing member, 47
...Coil spring (elastic member).

Claims

[Scope of utility model registration request]

A cam ring in which a rotor is housed and a compression chamber is defined by the rotor, a front plate and a rear plate that seal both open ends of the cam ring, and a rotor, a cam ring, a front plate, and a rear plate are housed therein. A cylindrical housing with a bottom, a suction chamber defined by a head cover and a front plate that seal the open end of the housing, and a suction chamber formed in the front plate that opens into the compression chamber and communicates the compression chamber with the suction chamber. a bypass port that rotates, a movable plate that is rotatably provided between the front plate and the cam ring and has a bypass opening that changes the opening position of the bypass port, and an actuator that rotates the movable plate, and are connected to face each other. It has a first valve body and a second valve body whose valve opening and valve closing directions are opposite to each other, and the discharge pressure and suction pressure of the compressor are controlled by the first valve body and the second valve body, respectively. A control valve that supplies power to the actuator to operate the actuator, and a second control valve of the control valve.
a control member that engages with the valve body and drives the control valve according to a change in suction pressure, and a control member that moves the movable plate when the suction pressure of the compressor fluctuates with respect to a preset suction pressure setting value. In a variable capacity vane rotary compressor that rotates to change the discharge amount of the compressor so that the suction pressure becomes a set value, one end of the pressing member is provided facing the control member with the control valve in between. a drive mechanism interposed between the other end of the pressing member and a first valve body of the control valve to move the first valve body in the valve closing direction; an elastic member for urging, and the set value of the suction pressure is changed by driving the pressing member by a drive mechanism and changing the urging force with which the elastic member urges the first valve body. A variable capacity vane type rotary compressor characterized by: