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Title:
CONTROL DEVICE, AIR CONDITIONER, AND CONTROL METHOD
Document Type and Number:
Japanese Patent JP2018200145
Kind Code:
A
Abstract:
To provide a control method for restraining high dilution of refrigeration oil just after starting of a compressor.SOLUTION: A control device of a refrigerant circuit acquires a first temperature measured in a return pipe for returning a refrigerant (refrigeration oil) delivered from a compressor to the compressor and a second temperature in a housing lower portion of the compressor, and controls openings of a flow control valve and an expansion valve on the basis of the first temperature and the second temperature. The control device closes the flow control valve and the expansion valve in starting of the compressor, and after that, opens the flow control valve when the first temperature gets higher than the second temperature.SELECTED DRAWING: Figure 1

Inventors:
高橋 一樹
木全 央幸
高須 洋悟
佐藤 創
Application Number:
JP2017105332A
Publication Date:
December 20, 2018
Filing Date:
May 29, 2017
Export Citation:
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Assignee:
三菱重工サーマルシステムズ株式会社
International Classes:
F25B1/00; F24F11/84
Attorney, Agent or Firm:
森 隆一郎
志賀 正武
高橋 詔男
山崎 哲男
松沼 泰史



 
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