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Patent Searching and Data


Title:
CHILLING UNIT
Document Type and Number:
WIPO Patent Application WO/2017/022101
Kind Code:
A1
Abstract:
This chilling unit is equipped with: a refrigerant circuit that is configured by a compressor, a four-way valve, an air heat exchanger, a main expansion valve, and a water heat exchanger being sequentially connected by piping and circulates a refrigerant therethrough; and a bypass circuit that is connected in parallel with the refrigerant circuit between the main expansion valve and the water heat exchanger and between the main expansion valve and the air heat exchanger. The four-way valve is capable of switching between the paths of a cooling operation mode and a heating operation mode. The bypass circuit has a solenoid valve, a pump down expansion valve, and a refrigerant tank that stores liquid refrigerant. The liquid refrigerant is stored in the refrigerant tank before at least the cooling operation mode or the heating operation mode is started.

Inventors:
ITO, Masahiro (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
TANAKA, Kosuke (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
ITO, Takuya (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
OKOSHI, Yasushi (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
Application Number:
JP2015/072254
Publication Date:
February 09, 2017
Filing Date:
August 05, 2015
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORPORATION (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
International Classes:
F25B1/00; F25B43/00; F25B43/02
Domestic Patent References:
WO2007049372A12007-05-03
Foreign References:
JP2008082653A2008-04-10
JP2014119161A2014-06-30
JPH1183212A1999-03-26
JP2003240368A2003-08-27
JP2001091023A2001-04-06
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (East 8F, TORANOMON TWIN BLDG. 10-1 Toranomon 2-chome, Minato-k, Tokyo 01, 〒1050001, JP)
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