JPH0317297U

JPH0317297U -

Info

Publication number: JPH0317297U
Application number: JP7845989U
Authority: JP
Priority date: 1989-07-03
Filing date: 1989-07-03
Publication date: 1991-02-20

Description

[Brief explanation of drawings]

第１図は本考案に係る気体圧縮機の縦断面図、
第２図ａは本考案に係るチヤタリング防止装置の
圧縮機起動時における拡大断面図、第２図ｂは本
考案に係るチヤタリング防止装置の圧縮機通常運
転時における拡大断面図、第３図は従来のチヤタ
リング防止装置を備えた気体圧縮機の縦断面図、
第４図は第３図の−線に沿う断面図である。２……ケーシング、３……フロントサイドブロ
ツク、４……シリンダ、６……リヤサイドブロツ
ク、６ａ……背圧室、８……ベーン、９……ロー
タ、２０……吐出弁、６０……高圧ガス供給通路
、６１……ボール弁、６２……付勢バネ。 FIG. 1 is a longitudinal sectional view of a gas compressor according to the present invention,
Fig. 2a is an enlarged cross-sectional view of the chattering prevention device according to the present invention when the compressor is started, Fig. 2b is an enlarged cross-sectional view of the chattering prevention device according to the present invention when the compressor is in normal operation, and Fig. 3 is a conventional longitudinal section of a gas compressor with an anti-chattering device,
FIG. 4 is a sectional view taken along the - line in FIG. 3. 2... Casing, 3... Front side block, 4... Cylinder, 6... Rear side block, 6a... Back pressure chamber, 8... Vane, 9... Rotor, 20... Discharge valve, 60... High pressure Gas supply passage, 61...ball valve, 62...biasing spring.

Claims

[Claims for Utility Model Registration] A cylinder that moves forward and backward in the radial direction within the cylinder chamber, which is composed of a cylinder formed in a substantially elliptical shape, and a front side block and a rear side block attached to both ends of the cylinder. a rotor having a plurality of movable vanes; a discharge valve discharging high-pressure gas compressed by the vanes in the cylinder chamber; and a back pressure groove provided between the rotor and the bottom of the vanes. and a control plate located between the front side block and the cylinder and rotatably attached to the rotor shaft within a predetermined angle, and communicating with the back pressure groove on the inner surfaces of the rear side block and the control plate. In a gas compressor equipped with a back pressure chamber, one end is opened adjacent to the discharge valve side, the other end is opened to the back pressure chamber side, and the high pressure gas is passed through the back pressure groove to the vane. A gas compressor comprising: a high-pressure gas supply passage that supplies the gas to the bottom; and a ball valve that is accommodated in the high-pressure gas supply passage and that is always biased toward an open position by a biasing member. Anti-chattering device.