JPS6243189U

JPS6243189U -

Info

Publication number: JPS6243189U
Application number: JP1985134406U
Authority: JP
Priority date: 1985-09-04
Filing date: 1985-09-04
Publication date: 1987-03-16

Description

[Brief explanation of the drawing]

第１図は本考案によるスクロール型圧縮機の第
１の実施例を示す断面図、第２図ａは第１図のＡ
―Ａ′線断面図、第２図ｂは第１図のＢ―Ｂ′線
断面図、第３図は本考案によるスクロール型圧縮
機の第２の実施例に用いられる容量可変機構を示
す断面図、第４図は本考案によるスクロール型圧
縮機の第３の実施例に用いられる容量可変機構を
示す断面図、第５図は従来のスクロール型圧縮機
に用いられる容量可変機構を示す図である。１……圧縮機、１０……圧縮機ハウジング、１
１……フロントエンドプレート、１２……カツプ
状部分、１３……ボールベアリング、１４……主
軸、１５……スリーブ、１６……シヤフトシール
組立体、２０……固定スクロール部材、２１……
可動スクロール部材、２２……回転阻止機構、２
５１……吸入室、２７……駆動輪、３６……流体
排出口、３５……流体吸入口、３９……側面開口
部、４１……逆止弁、４３……スプリング、４４
……ピストン弁、４５……電磁弁、４６……高圧
ガス導入管、４８……緩衝部材、５０……底面開
口部。 FIG. 1 is a cross-sectional view showing a first embodiment of a scroll compressor according to the present invention, and FIG. 2a is A of FIG.
- A sectional view taken along the line A', FIG. 2b is a sectional view taken along the line B-B' in FIG. 1, and FIG. 3 is a sectional view showing the variable capacity mechanism used in the second embodiment of the scroll compressor according to the present invention. 4 is a sectional view showing a variable capacity mechanism used in a third embodiment of the scroll compressor according to the present invention, and FIG. 5 is a diagram showing a variable capacity mechanism used in a conventional scroll compressor. be. 1...Compressor, 10...Compressor housing, 1
DESCRIPTION OF SYMBOLS 1... Front end plate, 12... Cup-shaped part, 13... Ball bearing, 14... Main shaft, 15... Sleeve, 16... Shaft seal assembly, 20... Fixed scroll member, 21...
Movable scroll member, 22...Rotation prevention mechanism, 2
51...Suction chamber, 27...Drive wheel, 36...Fluid outlet, 35...Fluid inlet, 39...Side opening, 41...Check valve, 43...Spring, 44
... Piston valve, 45 ... Solenoid valve, 46 ... High pressure gas introduction pipe, 48 ... Buffer member, 50 ... Bottom opening.

Claims

[Claims for Utility Model Registration] 1. A compressor housing having a fluid inlet and a fluid outlet, a fixed scroll member having a first spiral body and fixedly disposed within the compressor housing, the fixed scroll has two spiral bodies, the second spiral body meshing with the first spiral body at an angular offset to form a closed fluid pocket between the two spiral bodies; The movable scroll member is overlapped with the movable scroll member, and the movable scroll member is caused to perform a circular orbital motion while preventing rotation on its own axis, thereby supplying suction gas to the fluid from a suction chamber communicating with the fluid suction port. In the scroll type compressor, the high-pressure gas is taken into a pocket and discharged from a discharge port provided at the center of the fixed scroll member to the fluid discharge port via a discharge chamber. a fluid bypass hole is provided at a position extending inward from the outermost end of the spiral body of No. 1, and an intermediate pressure chamber that communicates the fluid bypass hole and the suction chamber via a check valve; a cylinder including a first opening communicating with the suction chamber and a second opening communicating with the suction chamber, into which discharge gas is introduced; and a cylinder disposed slidably within the cylinder to open and close the first opening. and a control valve mechanism that controls the introduction of the discharge gas into the cylinder, and the piston is configured to control the pressure of the discharge gas introduced into the cylinder by the pressure difference between the pressure of the discharge gas introduced into the cylinder and the pressure of the intermediate pressure chamber. The piston slides along the inner wall of the cylinder in which the first opening is provided, and softens the impact caused by the collision between the piston and the inner wall of the cylinder in which the first opening is provided. A variable capacity scroll compressor characterized by being provided with a buffer means for sealing the inner wall of the cylinder. 2 Utility Model Registration The variable capacity scroll compressor as set forth in claim 1, wherein the buffer means is installed on the piston. 3 Utility Model Registration The variable capacity scroll compressor as set forth in claim 1, wherein the buffer means is installed on the inner wall of the cylinder. 4. Utility model registration Claim 1, characterized in that the piston is molded from a self-lubricating and wear-resistant resin material, and the piston itself serves as the buffering means. Variable capacity scroll compressor.