JPS616692U

JPS616692U - scroll compressor

Info

Publication number: JPS616692U
Application number: JP9193384U
Authority: JP
Inventors: 博押上; 和暢永島
Original assignee: トキコ株式会社
Priority date: 1984-06-20
Filing date: 1984-06-20
Publication date: 1986-01-16
Also published as: JPH0113826Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図および第２図は本考案の第１の実施例にして、第
１図はスクロール式圧縮機の縦断面図、第２図は第１図
中の要部拡大図、第３図は本考案の第２実施例を示す第
２図と同様の拡大図、第４図は従来技術によるスクヮー
ル式圧縮機の縦断面図である。１・・・ケーシング、２・・・駆動軸、３Ａ，３Ｂ，
・・・軸受、４・・・旋回スクロール、′４Ａ・・・鏡
板、４Ｂ・・・ラツプ−部、６・・・固定スクロール、
６Ａ・・・鏡板、６Ｂ・・・ラップ部、７・・・圧縮室
、８・・・吸込み口、９・↓・吐出口、１０・・・クラ
ンク室、１２・・・ブラケット、１３・・・油通路、１
４・・・オルダム接手、１５・・・メカニカルシール、
２１．３１・・・蓋部材、２２，３２・・・背圧導入孔
、２３・・・ボール収容空間、２４−・・・ボール、３
３・・・シリンダ、３４・・・ピストン、３５・・・圧
縮ばね。Figures 1 and 2 show the first embodiment of the present invention. Figure 1 is a vertical cross-sectional view of a scroll compressor, Figure 2 is an enlarged view of the main parts in Figure 1, and Figure 3 is a longitudinal cross-sectional view of a scroll compressor. FIG. 4 is an enlarged view similar to FIG. 2 showing a second embodiment of the present invention, and FIG. 4 is a vertical cross-sectional view of a squall type compressor according to the prior art. 1...Casing, 2...Drive shaft, 3A, 3B,
... Bearing, 4... Orbiting scroll, '4A... End plate, 4B... Wrap part, 6... Fixed scroll,
6A...End plate, 6B...Wrap part, 7...Compression chamber, 8...Suction port, 9.↓.Discharge port, 10..Crank chamber, 12..Bracket, 13..・Oil passage, 1
4... Oldham joint, 15... mechanical seal,
21.31... Lid member, 22, 32... Back pressure introduction hole, 23... Ball storage space, 24-... Ball, 3
3...Cylinder, 34...Piston, 35...Compression spring.

Claims

[Scope of utility model registration request]

a casing; a rotating shaft rotatably provided on the casing; an orbiting scroll rotatably provided on the rotating shaft and having a spiral wrap portion erected on an end plate; A fixed scroll has a spiral wrap part erected on an end plate so as to overlap the wrap part of the scroll and form a compression chamber while rotating, and a fixed scroll of the fixed scroll to discharge air compressed in the compression chamber. a discharge port provided at a central position, a suction port provided near the winding end of each of the wrap portions away from the discharge port, and a crank chamber formed between the Kereng and the back surface of the orbiting scroll; In a scroll compressor, the scroll compressor includes a back pressure introduction hole for guiding a part of the compressed air in the compression chamber to the crank chamber as back pressure, and the back pressure introduction hole is provided with the introduction hole when the orbiting scroll rotates. 1. A scroll compressor comprising a valve mechanism that opens the introduction hole and closes the introduction hole when the rotation is stopped.