JPS617782U

JPS617782U - refrigeration cycle

Info

Publication number: JPS617782U
Application number: JP9069084U
Authority: JP
Inventors: 毅今飯田; 武司伊藤
Original assignee: 三菱重工業株式会社
Priority date: 1984-06-20
Filing date: 1984-06-20
Publication date: 1986-01-17

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】第１図及び第２図は本考案の１実施例を示し、第１図は
冷凍系統図、第２図は圧力差開閉弁の縦断面図である。第３図及び第４図は従来の空気調和機の冷凍サイクルを
示し、第３図は冷媒系統図、第４図は同上における高圧
側及び低圧側の冷・媒圧力の時間的変化を示す線図であ
る。圧縮機・・・２１、凝縮器・・・２２、絞り機構・・・
２３、蒸発器・・・２４、圧力差開閉弁・・・２５、入
口管・・・２７、出口管・・・２８、圧力導入管・・・
２６、高圧側接続部・・・３０。BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1 and 2 show one embodiment of the present invention, in which FIG. 1 is a refrigeration system diagram, and FIG. 2 is a longitudinal cross-sectional view of a pressure differential opening/closing valve. Figures 3 and 4 show the refrigeration cycle of a conventional air conditioner, Figure 3 is a refrigerant system diagram, and Figure 4 is a line showing temporal changes in refrigerant pressure on the high-pressure side and low-pressure side in the same as above. It is a diagram. Compressor...21, condenser...22, throttle mechanism...
23, Evaporator...24, Pressure differential on/off valve...25, Inlet pipe...27, Outlet pipe...28, Pressure introduction pipe...
26, High pressure side connection section...30.

Claims

[Scope of utility model registration request]

In a refrigeration cycle equipped with a compressor, a condenser, a throttle mechanism, and an evaporator, - a pipe is connected between a high pressure side and a low pressure side, and in the same pipe, when the compressor is operated, a pipe is connected to the high pressure side connection part. A pressure difference opening/closing valve is provided that introduces high pressure into a part that produces a pressure difference, closes due to the pressure difference when the compressor is operating, and opens due to pressure equilibrium when the compressor is stopped to allow refrigerant to flow from the high pressure side to the low pressure side. A refrigeration cycle characterized by the following.