Title:
REFRIGERATION CYCLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/179015
Kind Code:
A1
Abstract:
This refrigeration cycle device (100) is provided with a compressor (1), a first heat exchanger (3a), a second heat exchanger (3b), a third heat exchanger (5), a first expansion valve (4a) and a first switching unit (7). The first switching unit (7) can switch a first flow path (F1) and a second flow path (F2) between open and closed. If the first flow path (F1) is open, then refrigerant circulates in the first circulation direction of the compressor (1), the first heat exchanger (3a), a first port (P1), a second port (P2), the second heat exchanger (3b), the first expansion valve (4a) and the third heat exchanger (5). If the second flow path (F2) is open, then the refrigerant circulates in the second circulation direction of the compressor (1), the first heat exchanger (3a), the first port (P1), a third port (P3), the first expansion valve (4a) and the third heat exchanger (5). When the circulation direction of the refrigerant is switched from the first circulation direction to the second circulation direction, some of the refrigerant remains in the second heat exchanger (3b).
Inventors:
SATO TSUYOSHI (JP)
NISHIYAMA TAKUMI (JP)
NISHIYAMA TAKUMI (JP)
Application Number:
PCT/JP2019/008866
Publication Date:
September 10, 2020
Filing Date:
March 06, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B1/00; F25B5/04; F25B6/04
Foreign References:
| JPH01116366U | 1989-08-04 | |||
| JPS5860168A | 1983-04-09 | |||
| JP2009041829A | 2009-02-26 | |||
| JP2006317063A | 2006-11-24 | |||
| JP2018087675A | 2018-06-07 | |||
| JP2015087065A | 2015-05-07 |
Other References:
See also references of EP 3936786A4
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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