JPS6165295U

JPS6165295U -

Info

Publication number: JPS6165295U
Application number: JP15073184U
Authority: JP
Priority date: 1984-10-04
Filing date: 1984-10-04
Publication date: 1986-05-02
Also published as: JPH0353034Y2

Description

[Brief explanation of the drawing]

第１図は、本考案の実施例の縦断面図であり、
第２図および第３図は、それぞれ第１図における
−断面図および−断面図であり、第４図
は第３図における−断面図を示すものである
。２：シリンダ、４：フロントサイドプレート、
６：リヤサイドプレート、１０：フロントハウジ
ング、１２：リヤハウジング、１４：ハウジング
、１６：ロータ、１８：回転軸、２８：ベーン、
３２：圧縮室、３４：吸入室、３８：主吸入口、
４２：吐出口、４４：吐出室、５２：油分離室、
５６，１１０：油通路、６１：細油孔、６４：回
動板、６６：第一貫通穴（バイパス通路）、６８
：第二貫通穴、７２：ピン、７４：円弧穴、７６
：スプール、７８：長穴、８４：第一室、８６：
第二室、８８：スプリング、９０：第一受圧面、
９２：連通路、９４：第二受圧面、９６：開閉弁
、９８：弁子、１００：弁座、１０２：ピストン
。 FIG. 1 is a longitudinal sectional view of an embodiment of the present invention,
2 and 3 are a sectional view and a sectional view, respectively, of FIG. 1, and FIG. 4 is a sectional view of FIG. 3. 2: Cylinder, 4: Front side plate,
6: Rear side plate, 10: Front housing, 12: Rear housing, 14: Housing, 16: Rotor, 18: Rotating shaft, 28: Vane,
32: compression chamber, 34: suction chamber, 38: main suction port,
42: discharge port, 44: discharge chamber, 52: oil separation chamber,
56, 110: Oil passage, 61: Fine oil hole, 64: Rotating plate, 66: First through hole (bypass passage), 68
:Second through hole, 72: Pin, 74: Arc hole, 76
: Spool, 78: Long hole, 84: First chamber, 86:
Second chamber, 88: Spring, 90: First pressure receiving surface,
92: Communication path, 94: Second pressure receiving surface, 96: Open/close valve, 98: Valve element, 100: Valve seat, 102: Piston.

Claims

[Scope of utility model registration request]

The housing of the rotary compressor is connected to a cylinder and an open end of the cylinder, and the housing of the rotary compressor sucks gas from the suction chamber through the suction port into a plurality of compression chambers whose volume changes as a rotor is rotated within the housing, and discharges the gas from the discharge port. The rotor is equipped with a fixed side plate, and the rotor rotates while holding a vane that can be slid on the inner circumferential surface of the cylinder, and the rotor rotates while holding a vane that is slidable on the inner circumferential surface of the cylinder, and the rotor has its own fixed side plate between the cylinder and the side plate. A rotary plate having a first through hole in the thickness direction is rotatably provided approximately around the center line of the cylinder and is provided in contact with or very close to the end surfaces of the rotor and the vane, and A second through hole is formed in the side plate in the thickness direction and communicates with the first through hole, and the rotating plate is rotated to be close to the discharge port of the first through hole. In a rotary compressor provided with a rotary plate drive device that changes the position of the side end and simultaneously increases or decreases the communication area of the first through hole with the second through hole, the rotary plate drive device rotates the spool. A high pressure chamber and a low pressure chamber are formed at both ends of the spool, the high pressure chamber communicates with the vane groove through a small oil hole, the vane groove communicates with the oil reservoir through the rear plain bearing, and the low pressure chamber communicates with the oil reservoir during compression. A variable capacity rotary compressor characterized by selective communication with a chamber.