Invention Grant
- Patent Title: Refrigeration cycle apparatus capable of performing refrigerant recovery operation and controlling blower
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Application No.: US15754615Application Date: 2015-10-08
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Publication No.: US10724777B2Publication Date: 2020-07-28
- Inventor: Masahiro Ito , Takuya Ito , Yasushi Okoshi , Kazuyuki Ishida
- Applicant: Mitsubishi Electric Corporation
- Applicant Address: JP Tokyo
- Assignee: Mitsubishi Electric Corporation
- Current Assignee: Mitsubishi Electric Corporation
- Current Assignee Address: JP Tokyo
- Agency: Posz Law Group, PLC
- International Application: PCT/JP2015/078657 WO 20151008
- International Announcement: WO2017/061010 WO 20170413
- Main IPC: F25B45/00
- IPC: F25B45/00 ; F25B47/02 ; F25B13/00 ; F25B49/02

Abstract:
A controller in a refrigeration cycle apparatus performs a refrigerant recovery operation when switching an operation mode from a defrosting mode to a heating mode. During the refrigerant recovery operation, by rotating a fan of a blower while monitoring a pressure at a discharge side of the compressor, the controller is configured to perform feedback control to cause a high-pressure side pressure to be close to a high-pressure side target pressure value. During the refrigerant recovery operation, by controlling a driving frequency of the compressor while monitoring a pressure at a suction side of the compressor, the controller is configured to perform feedback control to cause a low-pressure side pressure to be close to a low-pressure side target pressure value.
Public/Granted literature
- US20190154322A1 REFRIGERATION CYCLE APPARATUS Public/Granted day:2019-05-23
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