JPS60167185U - Rotary compressor reverse rotation prevention device - Google Patents

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

【図面の簡単な説明】[Brief explanation of the drawing]

第１図及び第２図は従来例を示し、第１図は回転圧縮機
の断面図、第２図は第１図の要部拡大断面図、第３図乃
至第５図はこの考案を示し、第３図は回転圧縮機にサキ
ュームレータを取付けた状態を示す断面図、第４図は第
３図のＡ部を拡大した逆止弁の閉塞状態を示す要部拡大
断面図、第５図は第３区のＡ部を拡大した逆止弁の開放
状態を示す要部拡大断面図である。 ４５・・・アキュームレータ、４８・・・戻し配管、４
９・・・逆止弁、５１・・・弁座部、５２・・・弁体、
５３・・・押圧手段。Figures 1 and 2 show a conventional example, Figure 1 is a sectional view of a rotary compressor, Figure 2 is an enlarged sectional view of the main part of Figure 1, and Figures 3 to 5 show this invention. , Fig. 3 is a cross-sectional view showing the state in which the suction ulator is attached to the rotary compressor, Fig. 4 is an enlarged cross-sectional view of the main part showing the closed state of the check valve, which is an enlarged view of part A in Fig. 3, and Fig. 5 The figure is an enlarged sectional view of the main part showing the open state of the check valve, with section A of the third section enlarged. 45... Accumulator, 48... Return piping, 4
9... Check valve, 51... Valve seat portion, 52... Valve body,
53...pressing means.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 回転圧縮機と、この回転圧縮機の吸込側に接続される戻
し配管を有するアキュームレータと、このアキュームレ
ータ内の戻し配管に設けた逆止弁とを備え、この逆止弁
は弁座部と、この弁座部を開閉する弁体と、この弁体を
冷媒温度により動作させる形状記憶合金の押圧手段とで
形成することを特徴とした回転圧縮機の逆転防止装置。It includes a rotary compressor, an accumulator having a return pipe connected to the suction side of the rotary compressor, and a check valve provided in the return pipe in the accumulator. 1. A reversal prevention device for a rotary compressor, comprising a valve body that opens and closes a valve seat portion, and a shape memory alloy pressing means that operates the valve body depending on the temperature of the refrigerant.