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Title:
REFRIGERATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/065856
Kind Code:
A1
Abstract:
One main pipe (77) connected to a liquid line (60) and having an expansion valve (78), and multiple branch pipes (81a, 81b, 81c) branching off from the outflow end of the main pipe (77) to connect to compressors (13a, 13b, 13c) and each having a flow adjustment valve (82a, 82b, 82c) are provided in an injection circuit (81). A control unit (100) is provided which, during an injection operation, maintains at a prescribed fixed opening degree the flow adjustment valves (82a, 82b, 82c) corresponding to prescribed compressors (13a, 13b, 13c) of the multiple compressors (13a, 13b, 13c), and adjusts the opening degrees of the compression valve (78) and the remaining flow adjustment valves (82a, 82b, 82c).

Inventors:
TAKEGAMI MASAAKI (JP)
SAKAE SATORU (JP)
SHINOHARA IWAO (JP)
KONDOU AZUMA (JP)
Application Number:
PCT/JP2018/035988
Publication Date:
April 04, 2019
Filing Date:
September 27, 2018
Export Citation:
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Assignee:
DAIKIN IND LTD (JP)
International Classes:
F25B1/00; F25B5/02
Domestic Patent References:
WO2010097874A12010-09-02
Foreign References:
JP2016211747A2016-12-15
JP2009293887A2009-12-17
JP2004044921A2004-02-12
Attorney, Agent or Firm:
MAEDA & PARTNERS (JP)
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