Invention Grant
- Patent Title: Air-conditioning apparatus
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Application No.: US16313941Application Date: 2016-09-12
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Publication No.: US10794620B2Publication Date: 2020-10-06
- Inventor: Shuhei Mizutani
- 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/JP2016/076785 WO 20160912
- International Announcement: WO2018/047331 WO 20180315
- Main IPC: F25B13/00
- IPC: F25B13/00 ; F25B41/00 ; F25B5/02 ; F25B6/04 ; F25B5/00 ; F25B6/02 ; F25B6/00

Abstract:
An air-conditioning apparatus reduces occurrence of refrigerant accumulation on a downstream side of an evaporator to favorably circulate refrigerant. The air-conditioning apparatus includes: a main circuit in which a compressor, a refrigerant-flow switching device, a load-side heat exchanger, a load-side expansion device and three heat-source-side heat exchangers are connected by pipes to circulate refrigerant; and a heat-exchanger flow-passage switching device which performs switching to apply a first series refrigerant passage in the case where the three heat-source-side heat exchangers are used as condensers, and switching to apply a parallel refrigerant passage in the case where the three heat-source-side heat exchangers are used as evaporators. In the first series refrigerant passage, on an upstream side, the first and second heat-source-side heat exchangers are connected parallel to each other, and on a downstream side, the third heat-source-side heat exchanger is located. In the parallel refrigerant passage, first to third heat-source-side heat exchanger are connected parallel to each other.
Public/Granted literature
- US20190383532A1 AIR-CONDITIONING APPARATUS Public/Granted day:2019-12-19
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