JPH0318462U

JPH0318462U -

Info

Publication number: JPH0318462U
Application number: JP7681689U
Authority: JP
Priority date: 1989-06-29
Filing date: 1989-06-29
Publication date: 1991-02-22

Description

[Brief explanation of the drawing]

第１図ないし第３図は本考案の一実施例を示し
たもので、第１図は差圧弁部分の縦断面図、第２
図は第１図の−線に沿う同部分の横断面図、
第３図は冷凍サイクル全体の概略構成図である。
又、第４図及び第５図は従来のものを示したもの
で、第４図は第３図相当図、第５図は第１図相当
図である。図面中、２１……コンプレツサ、２１ａ……吐
出口、２１ｂ……吸入口、２２……コンデンサ、
２３……キヤピラリチユーブ、２４……エバポレ
ータ、２５……逆止弁、２６……差圧弁、２８…
…第１の口、２９……第２の口、３０……第３の
口、３７……弁体、３９……溝部を示す。 Figures 1 to 3 show an embodiment of the present invention, in which Figure 1 is a vertical cross-sectional view of the differential pressure valve portion, and Figure 2 is a vertical sectional view of the differential pressure valve portion.
The figure is a cross-sectional view of the same part along the - line in Figure 1,
FIG. 3 is a schematic diagram of the entire refrigeration cycle.
Further, FIGS. 4 and 5 show conventional devices, with FIG. 4 being a diagram corresponding to FIG. 3, and FIG. 5 being a diagram corresponding to FIG. 1. In the drawings, 21...compressor, 21a...discharge port, 21b...intake port, 22...condenser,
23... Capillary tube, 24... Evaporator, 25... Check valve, 26... Differential pressure valve, 28...
...first port, 29...second port, 30...third port, 37...valve body, 39...shows the groove.

Claims

[Scope of utility model registration request]

A refrigeration cycle consisting of a condenser, a condenser, an evaporator, and a check valve are connected in sequence between a compressor, a discharge port, and an inlet. 1, a second port connected to the evaporator side, and a third port connected to the suction port side of the compressor. It has a valve body that opens and closes based on pressure changes on the compressor suction side between when the compressor is stopped and when it is stopped, and the valve body has grooves extending in the opening and closing operation direction of the valve body around the valve body at least at approximately equal intervals. A refrigeration cycle characterized in that two ports are formed, and when the first port and the second port are opened, the refrigerant flowing from the first port flows through the groove portion to the second port. differential pressure valve.