Title:
REFRIGERATION CYCLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/211078
Kind Code:
A1
Abstract:
Provided is a refrigeration cycle device that is equipped with a first refrigerant circuit and a second refrigerant circuit and allows an improvement in the operating efficiency. The present invention comprises a first refrigerant circuit (10) using a first refrigerant of 1.2 MPa or less at 30°C and a second refrigerant circuit (20) using a second refrigerant of 1.5 MPa or higher at 30°C, and is capable of switching between dual-cycle operation in which the first refrigerant circuit (10) and the second refrigerant circuit (20) are operated simultaneously to perform heat exchange between the first and second refrigerants and single-cycle operation in which the first refrigerant circuit (10) is operated for cooling or heating operation without operating the second refrigerant circuit (20).
Inventors:
IKARASHI HIROKI
YOSHIMI ATSUSHI
YAMADA TAKURO
KUMAKURA EIJI
IWATA IKUHIRO
KAJI RYUHEI
MIYAZAKI TAKERU
UEDA HIROKI
TANAKA MASAKI
NAKAYAMA MASAKI
SAKAGUCHI HIDEHO
TANAKA OSAMU
FUJINO HIROKAZU
YOSHIMI ATSUSHI
YAMADA TAKURO
KUMAKURA EIJI
IWATA IKUHIRO
KAJI RYUHEI
MIYAZAKI TAKERU
UEDA HIROKI
TANAKA MASAKI
NAKAYAMA MASAKI
SAKAGUCHI HIDEHO
TANAKA OSAMU
FUJINO HIROKAZU
Application Number:
PCT/JP2022/016798
Publication Date:
October 06, 2022
Filing Date:
March 31, 2022
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
F25B7/00; F25B1/00
Domestic Patent References:
| WO2017221382A1 | 2017-12-28 |
Foreign References:
| JP2000320914A | 2000-11-24 | |||
| JP2021011985A | 2021-02-04 | |||
| JP2014009829A | 2014-01-20 |
Attorney, Agent or Firm:
SHINJYU GLOBAL IP (JP)
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