JPH0188352U

JPH0188352U -

Info

Publication number: JPH0188352U
Application number: JP18580087U
Authority: JP
Priority date: 1987-12-03
Filing date: 1987-12-03
Publication date: 1989-06-12

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例による空気調和機
の冷媒回路図、第２図はこの考案における容量制
御用ホツトガスバイパス回路の詳細図、第３図は
従来の空気調和機の冷媒回路図である。これらの図において、１は圧縮機、２は凝縮器
、３は主膨張装置、４は蒸発器、１５は主冷媒回
路、１０は吐出側配管、５はホツトガスバイパス
用電磁弁、６は容量制御用ホツトガスバイパス回
路、７はインジエクシヨン用膨張装置、１４は液
インジエクシヨン回路、１１は密閉容器、１２は
小孔である。なお、各図中、同一符号は同一、又
は相当部分を示す。 Figure 1 is a refrigerant circuit diagram of an air conditioner according to an embodiment of this invention, Figure 2 is a detailed diagram of a hot gas bypass circuit for capacity control in this invention, and Figure 3 is a refrigerant circuit diagram of a conventional air conditioner. It is. In these figures, 1 is a compressor, 2 is a condenser, 3 is a main expansion device, 4 is an evaporator, 15 is a main refrigerant circuit, 10 is a discharge side piping, 5 is a solenoid valve for hot gas bypass, and 6 is a capacity A hot gas bypass circuit for control, 7 an expansion device for injection, 14 a liquid injection circuit, 11 a closed container, and 12 a small hole. In each figure, the same reference numerals indicate the same or equivalent parts.

Claims

[Scope of utility model registration request]

A main refrigerant circuit in which a compressor, a condenser, a main expansion device, and an evaporator are connected by piping to form a closed loop, and the main refrigerant circuit is branched from the discharge side piping of the compressor and connected to the low pressure side of the main refrigerant circuit, A hot gas bypass circuit for capacity control is provided with a solenoid valve for hot gas bypass in the middle, and a hot gas bypass circuit is branched from the outlet side piping of the condenser and connected to the low pressure side of the main refrigerant circuit, and an expansion valve for injection In the refrigerant circuit comprising a liquid injection expansion circuit provided with a device, an airtight container is provided in a circuit portion communicating between the injection expansion device of the liquid injection circuit and the low pressure side of the main refrigerant circuit; , disposing one end of the connecting pipe provided with a plurality of small holes in the sealed container,
and the other end of the hot gas bypass solenoid valve is connected to the outlet of the hot gas bypass solenoid valve, whereby the hot gas sent out via the solenoid valve is spouted into the closed container through the small hole. An air conditioner characterized by comprising a bypass circuit.