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Title:
REFRIGERATION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2016/135904
Kind Code:
A1
Abstract:
A refrigeration apparatus 1 has a refrigerant circuit 10 which is configured by a heat-source-side unit 2 and at least one use-side unit 4 being connected by piping and circulates a refrigerant therethrough. The heat-source-side unit 2 has a compressor 21, a heat-source-side heat exchanger 23 serving as a condenser, and a supercooler 22. The use-side unit 4 has a use-side expansion valve 41 and a use-side heat exchanger 42 serving as an evaporator. The refrigeration apparatus 1 is equipped with a refrigerant amount determination unit 3 that determines the amount of the refrigerant filled in the refrigerant circuit 10 using the temperature efficiency T of the supercooler 22, which is a value obtained by dividing the supercooling degree of the refrigerant at the outlet of the supercooler 22 by the maximum temperature difference of the supercooler 22. The refrigerant amount determination unit 3 acquires the operating state of the refrigeration apparatus 1, and, if the refrigerant amount is likely to be erroneously determined, the determination of the refrigerant amount is not performed.

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Inventors:
SATA HIROSHI (JP)
SAITO MAKOTO (JP)
MORITA HISATO (JP)
SATO HIROKI (JP)
Application Number:
PCT/JP2015/055476
Publication Date:
September 01, 2016
Filing Date:
February 25, 2015
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B49/02; F25B45/00
Foreign References:
JP2012132639A2012-07-12
JP2009229050A2009-10-08
JP2010223542A2010-10-07
JPH08121917A1996-05-17
JP2004069198A2004-03-04
JP2012211723A2012-11-01
JP4215022B22009-01-28
JP2014196833A2014-10-16
JP2010007997A2010-01-14
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
Patent business corporation きさ patent trademark office (JP)
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