Title:
REFRIGERATION CYCLE DEVICE
Document Type and Number:
Japanese Patent JP2015152262
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a refrigeration cycle device that can prevent an excessive increase in a discharge temperature while improving a coefficient of performance.SOLUTION: This refrigeration cycle device includes: a third heat exchanger for exchanging heat between a refrigerant sucked in a compressor and a refrigerant flowing into an expansion device; a bypass flow passage bypassing the third heat exchanger between a first heat exchanger and the expansion device; and a switch for opening/closing the bypass flow passage. A pressure sensor detects pressure of the refrigerant between the downstream side of the expansion device and the upstream side of the compressor. A temperature sensor detects a temperature of the refrigerant between the downstream side of a second heat exchanger and the upstream side of the third heat exchanger. A control section lowers a target superheat degree when the temperature of the refrigerant discharged from the compressor is higher than a first threshold value. The control section opens the switch when the temperature of the refrigerant discharged from the compressor is higher than a second threshold value that is larger than the first threshold value.
Inventors:
ASARI SHUN
ZUSHI TAKAHIRO
ZUSHI TAKAHIRO
Application Number:
JP2014027775A
Publication Date:
August 24, 2015
Filing Date:
February 17, 2014
Export Citation:
Assignee:
TOSHIBA CARRIER CORP
International Classes:
F25B1/00; F25B40/00
Domestic Patent References:
| JP2012193897A | 2012-10-11 | |||
| JP2001221527A | 2001-08-17 | |||
| JPH1068553A | 1998-03-10 | |||
| JPH05133621A | 1993-05-28 | |||
| JP2013002744A | 2013-01-07 |
Attorney, Agent or Firm:
Shiga International Patent Office
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