JPS5825955U

JPS5825955U - Heat pump air conditioning system

Info

Publication number: JPS5825955U
Application number: JP12075081U
Authority: JP
Inventors: 哲夫田口
Original assignee: ダイキン工業株式会社
Priority date: 1981-08-13
Filing date: 1981-08-13
Publication date: 1983-02-18
Also published as: JPS6036841Y2

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図ないし第３図は本考案の実施例を示し、第１図は
第１実施例を示す冷媒配管系統図、第２図は第２実施例
を示す要部説明図、第３図は第３実施例を示す要部説明
図、第４図は従来例を示す冷媒配管系統図である。１・・・圧縮機、１ｂ・・・シリンダ、１Ｃ・・・吸入
ポート、２・・・四路切換弁、３・・・室内熱交換器、
４ａ・・・″第１膨張機構、４ｂ・・・第２膨張機構、
５・・・室外熱　　　　　、交換器、７・・・バイパス
ポート、８・・・バイパス通路、９・・・インジェクシ
ョンポート、１０・・・気液分離器、１１、ｌｌａ・・
・インジェクション通路、１３・・・制御弁。1 to 3 show embodiments of the present invention, FIG. 1 is a refrigerant piping system diagram showing the first embodiment, FIG. 2 is an explanatory diagram of main parts showing the second embodiment, and FIG. A main part explanatory diagram showing the third embodiment, and FIG. 4 is a refrigerant piping system diagram showing a conventional example. 1... Compressor, 1b... Cylinder, 1C... Suction port, 2... Four-way switching valve, 3... Indoor heat exchanger,
4a...''first expansion mechanism, 4b...second expansion mechanism,
5... Outdoor heat, exchanger, 7... Bypass port, 8... Bypass passage, 9... Injection port, 10... Gas-liquid separator, 11, lla...
- Injection passage, 13... control valve.

Claims

[Claims for Utility Model Registration] Compressor 1, four-way switching valve 2, indoor heat exchanger 3, and first and second expansion mechanisms 4a divided into two. 4b, and an outdoor heat exchanger 5, the bypass port 7 is provided downstream of the compression process of the cylinder 1b of the compressor 1, and the bypass port 7 and the suction of the compressor 1 are provided. A bypass passage 8 communicating with the port 1C, an injection port 9 provided on the upstream side of the compression process of the bypass port 7 of the cylinder 1b of the compressor 1, and the first and second expansion mechanisms 4a, 4b. a gas-liquid separator 10 interposed therebetween; an injection passage 11 having one end connected to the gas region of the gas-liquid separator 10 and the other end connected to the injection port 9 and the bypass passage 8; 11 and the bypass passage 8, the control valve 13 is provided to close the bypass passage 8 when the intermediate pressure of the gas-liquid separator 10 is applied, and to open when the intermediate pressure of the gas-liquid separator 10 is not applied. The intermediate pressure of the gas-liquid separator 10 is applied to 13 to close the bypass passage 8, and the gas refrigerant at the intermediate pressure is injected into the compressor 1 from the injection port 9. 1. A heat pump type air-conditioning/cooling device characterized in that a part of the suction gas of the compressor 1 is bypassed to the suction port IC of the compressor 1 via the bypass passage 8 due to the non-action of intermediate pressure to the air conditioner.