JPS5896465U

JPS5896465U - Refrigeration cycle equipment

Info

Publication number: JPS5896465U
Application number: JP19192781U
Authority: JP
Inventors: 政雄小津
Original assignee: 株式会社東芝
Priority date: 1981-12-23
Filing date: 1981-12-23
Publication date: 1983-06-30

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

[Brief explanation of the drawing]

第１図および第２図は従来のそれぞれ異なる冷凍サイク
ル装置を示す構成図、第３図はこの考案の一実施例の冷
凍サイクル装置を示す構成図、第４図は同じくその差圧
利用開閉弁の構造を示す断面図、第５図ａ、　　ｂはそ
の差圧利用開閉弁の開閉動作状況を示す開放状態図、閉
止状態図、第６図はその差圧利用開閉弁の冷凍サイクル
の起動および停止に伴う推移を示す特性図、第７図はこ
の考案の他の実施例の冷凍サイクル装置を示す構成図、
第８図はこの考案の他の実施例の差圧利用開閉弁を示す
断面図である。１・・・・・・圧縮機、２・・・・・・冷媒流路、３・
・・・・・凝縮器、４・・・・・・蒸発器、６・・・・
・・減圧膨張機構、７・・曲差圧利用幽閉弁、９・・・
・・・弁室、１１・・・・・・可動弁（弁体）。第３図第６図1 and 2 are block diagrams showing different conventional refrigeration cycle devices, FIG. 3 is a block diagram showing a refrigeration cycle device according to an embodiment of this invention, and FIG. 5a and 5b are open state diagrams and closed state diagrams showing the opening/closing operation status of the differential pressure shutoff valve, and FIG. A characteristic diagram showing the transition due to stoppage, FIG. 7 is a configuration diagram showing a refrigeration cycle device of another embodiment of this invention,
FIG. 8 is a cross-sectional view showing a differential pressure shutoff valve according to another embodiment of this invention. 1... Compressor, 2... Refrigerant flow path, 3.
...Condenser, 4...Evaporator, 6...
・・Decompression expansion mechanism, 7・・Confinement valve using differential pressure, 9・・・
... Valve chamber, 11... Movable valve (valve body). Figure 3 Figure 6

Claims

[Scope of utility model registration request]

(1) In a refrigeration cycle device configured by sequentially connecting a compressor, a condenser, a vacuum expansion mechanism, and an evaporator through a refrigerant flow path, the refrigerant flows in the refrigerant flow path between the compressor and the vacuum expansion mechanism. A refrigeration cycle device comprising a differential pressure opening/closing valve that opens when the differential pressure is large and closes when the differential pressure is small due to the difference between the pressure on the high pressure side and the pressure on the low pressure side of the refrigeration cycle.

(2) The above-mentioned differential pressure on-off valve is installed in the valve chamber that connects the refrigerant flow path between the compressor and the decompression expansion mechanism, and also connects the refrigerant flow path between the compressor and the evaporator via a bypass. A valve body that is biased by a biasing means. The refrigeration cycle device according to claim 1, characterized in that it is configured to be movable.

(3) The above-mentioned differential pressure on-off valve connects the refrigerant flow path between the compressor and the decompression expansion mechanism, and also has a valve in the valve chamber that connects the refrigerant flow path between the compressor and the evaporator via a bypass. The refrigeration cycle device according to claim 1, characterized in that the body is movable.