Title:
REFRIGERATION DEVICE AND INDOOR UNIT
Document Type and Number:
WIPO Patent Application WO/2019/106764
Kind Code:
A1
Abstract:
This refrigeration device has: a refrigeration circuit in which a compressor, a gas cooler, a liquid receiver, a low-pressure expansion valve and an evaporator are connected to refrigerant piping and a refrigerant is circulated; a high-pressure expansion valve provided between the gas cooler and the liquid receiver; an accumulator which is provided between the evaporator and the compressor and stores the refrigerant; a bypass circuit which connects a portion between the liquid receiver and the low-pressure expansion valve with the refrigerant inlet side of the accumulator; a bypass adjustment valve which is provided in the bypass circuit and adjusts the flow rate of the refrigerant; and a control device which performs a control for increasing the opening degree of the bypass adjustment valve when the amount of refrigerant stored between the discharge side of the compressor and the liquid receiver exceeds a predetermined threshold value.
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Inventors:
ARII YUSUKE (JP)
SAIKUSA TETSUJI (JP)
HAYASAKA MOTOSHI (JP)
SAIKUSA TETSUJI (JP)
HAYASAKA MOTOSHI (JP)
Application Number:
PCT/JP2017/042868
Publication Date:
June 06, 2019
Filing Date:
November 29, 2017
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B1/00; F25B43/00; F25B49/02
Domestic Patent References:
| WO2015063838A1 | 2015-05-07 | |||
| WO2015174054A1 | 2015-11-19 |
Foreign References:
| JP5819000B2 | 2015-11-18 | |||
| JP2008096093A | 2008-04-24 | |||
| JP2006275440A | 2006-10-12 | |||
| JP2004226025A | 2004-08-12 | |||
| JP2012047375A | 2012-03-08 | |||
| JP2006329540A | 2006-12-07 | |||
| JP2013002737A | 2013-01-07 | |||
| JPH0311388B2 | 1991-02-15 |
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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