Title:
REFRIGERATION CYCLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/174685
Kind Code:
A1
Abstract:
A refrigerant containing R290 is circulated in this refrigeration cycle device (100). A compression mechanism (CM1) compresses refrigerant from a first suction port (Ps1) and discharges the same from a second discharge port (Pd2). A motor (M1) drives the compression mechanism (CM1). Refrigerant from a second suction port (Ps2) passes through the motor (M1) and is discharged from a first discharge port (Pd1). The refrigerant is circulated in a first circulation direction through: the first discharge port (Pd1), a first heat exchanger (3), a first pressure reduction device (31), and a second heat exchanger (4); the first suction port (Ps1) and the second discharge port (Pd2); and the second suction port (Ps2). When a first flow path (FP1) is formed, refrigerant from the first flow path (FP1) reaches the first suction port (Ps1) without passing through a third heat exchanger (10). When a second flow path (FP2) is formed, refrigerant from the second flow path (FP2) passes through the third heat exchanger (10) and then reaches the first suction port (Ps1).
Inventors:
NISHIYAMA TAKUMI (JP)
ITO DAISUKE (JP)
MURATA KENTA (JP)
SATO TSUYOSHI (JP)
ITO DAISUKE (JP)
MURATA KENTA (JP)
SATO TSUYOSHI (JP)
Application Number:
PCT/JP2019/007925
Publication Date:
September 03, 2020
Filing Date:
February 28, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B1/00
Domestic Patent References:
| WO2016105262A1 | 2016-06-30 |
Foreign References:
| JP2011214753A | 2011-10-27 | |||
| JP2001227822A | 2001-08-24 | |||
| JPH0875290A | 1996-03-19 | |||
| JP2001108317A | 2001-04-20 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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