Title:
REFRIGERATION CYCLE DEVICE
Document Type and Number:
Japanese Patent JP2016223741
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a refrigeration cycle device capable of preventing overheating of a compressor without generating intermittent operation and operation stop of the compressor.SOLUTION: A refrigeration cycle device includes: a refrigeration cycle containing a compressor 1, a condenser 3, an expansion valve 4 and an evaporator 5; a first bypass 10 configured to inject part of liquid refrigerant, flowing out from the condenser 3, into the compressor 1; and a second bypass 20 configured to decompress part of refrigerant discharged from the compressor 1 and then return it to the suction side of the compressor 1. The refrigeration cycle device controls opening of the expansion valve 4 according to overheating degree of refrigerant in the evaporator 5; controls opening/closing and flow rate of the first bypass 10 according to the temperature of refrigerant discharged from the compressor 1; and controls opening/closing of the second bypass 20 according to the ambient temperature of the evaporator 5.SELECTED DRAWING: Figure 1
Inventors:
TAKAYAMA TSUKASA
TANAKA MAKOTO
TANAKA MAKOTO
Application Number:
JP2015112893A
Publication Date:
December 28, 2016
Filing Date:
June 03, 2015
Export Citation:
Assignee:
TOSHIBA CARRIER CORP
International Classes:
F25B1/00; F25B43/00
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Attorney, Agent or Firm:
Suzue International Patent Office