JPS602778U

JPS602778U - Cooling device capacity control system

Info

Publication number: JPS602778U
Application number: JP9480083U
Authority: JP
Inventors: 淳久家; 茂木　岩夫
Original assignee: エスエムシ−株式会社
Priority date: 1983-06-20
Filing date: 1983-06-20
Publication date: 1985-01-10

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 the drawing]

第１図は従来例の構成図、第２図は本考案の実施例の構
成図、第３図はその制御弁の一構造例の断面図である。１１・・・・・・コンプレッサ、１２・・・・・・吐出
口、１３・・・・・・吸引口、１４・・・・・・制御弁
、１５・・間コンデンサ、１６・・・・・・キャピラリ
チューブ、１７・・・・・・エバポレータ、２０・・・
・・・バイパスポート、２１・・・・・・入口ポート、
２２・・・・・・出口ポート、３３・・四方体。FIG. 1 is a configuration diagram of a conventional example, FIG. 2 is a configuration diagram of an embodiment of the present invention, and FIG. 3 is a sectional view of an example of the structure of the control valve. 11...Compressor, 12...Discharge port, 13...Suction port, 14...Control valve, 15...Condenser, 16... ... Capillary tube, 17... Evaporator, 20...
...Bypass port, 21...Entrance port,
22...exit port, 33...tetragon.

Claims

[Scope of utility model registration request]

A control valve for controlling the capacity is installed between the discharge port and suction port of a compressor that compresses refrigerant vapor into high-temperature, high-pressure gas, and a condenser that cools and condenses the gas by a continuously rotating air cooling fan. A capillary tube or expansion valve that reduces the pressure and temperature of the refrigerant liquid by narrowing the flow path of the refrigerant liquid, and an evaporator that evaporates the refrigerant and gasifies it using heat from the outside are connected in sequence, and the control valve is connected to the control valve. The provided bypass port is connected to the capillary tube or the secondary side of the expansion valve, and a sensor that detects the amount of physical change in the refrigerant in the refrigerant circuit in response to changes in the cooling load as an electrical signal is connected to the capillary tube or the secondary side of the expansion valve. It is connected to a control device that judges changes in the cooling load and outputs a control signal, and the control valve is driven and controlled by the control signal, so that when the cooling load decreases, the control valve is moved from the inlet port to the outlet port. A capacity control system for a cooling device, characterized in that the opening amount from the inlet port to the bypass port is increased, and the opening amount from the inlet port to the bypass port is increased.