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Title:
REFRIGERATION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2020/080064
Kind Code:
A1
Abstract:
This refrigeration apparatus 1 is provided with a compressor 10 for compressing a refrigerant that is for a refrigeration cycle, a motor 20 that is accommodated in a motor chamber 12a defined by a motor casing 12 of the compressor 10 and drives the compressor 10, a pressure measurement unit 70 for measuring the pressure in the motor chamber 12a, a temperature detection unit 60 for measuring a temperature associated with the temperature state of the motor 20, a heating unit 50 for heating the motor chamber 12a, and a control device 40 for controlling the motor 20 and the heating unit 50. The control device 40 calculates a saturation temperature Ts of the refrigerant under the pressure measured by the pressure measurement unit 70, causes the heating unit 50 to heat the motor chamber 12a if a representative temperature T detected by the temperature detection unit 60 is no greater than the saturation temperature Ts when the compressor 10 is to be started, and enables starting of the compressor 10 if the representative temperature T exceeds the saturation temperature Ts.

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Inventors:
TSUBOI NOBORU
KAKIUCHI TETSUYA
SUZUKI KATSUYUKI
KANKI EIJI
TANAKA KEISUKE
Application Number:
PCT/JP2019/038210
Publication Date:
April 23, 2020
Filing Date:
September 27, 2019
Export Citation:
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Assignee:
KOBE STEEL LTD (JP)
International Classes:
F25B1/00; F25B41/04
Domestic Patent References:
WO2016170578A12016-10-27
WO2019102532A12019-05-31
Foreign References:
JP2012233632A2012-11-29
JP2004278961A2004-10-07
JP2009300008A2009-12-24
JP2011515606A2011-05-19
JP2013122185A2013-06-20
JP2005180753A2005-07-07
JP2018054171A2018-04-05
JP2011214484A2011-10-27
JP2019128112A2019-08-01
Attorney, Agent or Firm:
YAMAO, Norihito et al. (JP)
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