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Title:
REFRIGERANT RECOVERY OPERATION SWITCHING DEVICE, AND REFRIGERANT RECOVERY DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/004229
Kind Code:
A1
Abstract:
This refrigerant recovery operation switching device comprises a high-pressure connection port communicating with a high-pressure side connection opening of a refrigeration cycle device, a low-pressure connection port communicating with a low-pressure side connection opening, a suction connection port connected to a suction opening of a recovery machine, a discharge connection port connected to a discharge opening of the recovery machine, a liquid connection port connected to a liquid opening of a compressed gas cylinder, a gas connection port connected to a gas opening of the compressed gas cylinder, and a switching unit for switching flow paths, wherein, in a gas recovery mode, the switching unit forms flow paths causing the high-pressure connection port, the low-pressure connection port, and the suction connection port to communicate with one another, and causing the discharge connection port and the liquid connection port to communicate with one another, and in a liquid recovery mode, switches to flow paths causing the gas connection port and the suction connection port to communicate with one another, causing the discharge connection port and the low-pressure connection port to communicate with one another, and causing the high-pressure connection port and the liquid connection port to communicate with one another.

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Inventors:
OCHIAI YASUTAKA (JP)
DOHGAN YOSHIHIRO (JP)
OUE AKINORI (JP)
Application Number:
PCT/JP2022/038522
Publication Date:
January 04, 2024
Filing Date:
October 17, 2022
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
MITSUBISHI ELECTRIC BUILDING SOLUTIONS CORP (JP)
International Classes:
F25B45/00; F25B41/26
Foreign References:
JP2005249297A2005-09-15
US5186017A1993-02-16
US5181390A1993-01-26
CN111397258A2020-07-10
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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