Title:
AIR CONDITIONER
Document Type and Number:
Japanese Patent JP2020201013
Kind Code:
A
Abstract:
To reduce an amount of a refrigerant filling a refrigerant cycle system.SOLUTION: A refrigerant cycle system 100 includes: a vapor compression type primary side cycle 20 which circulates a first refrigerant; a vapor compression type secondary side cycle 40 which circulates a second refrigerant; and a cascade heat exchanger 35 which conducts heat exchange between the first refrigerant and the second refrigerant. The secondary side cycle 40 has a utilization heat exchanger 51 for using cold or heat that the second refrigerant obtains from the cascade heat exchanger 35. The utilization heat exchanger 51 has a flat multi-hole pipe.SELECTED DRAWING: Figure 1
Inventors:
YAMADA TAKUO
KUMAKURA EIJI
YOSHIMI ATSUSHI
IWATA YASUHIRO
MINAMIDA TOMOATSU
KUMAKURA EIJI
YOSHIMI ATSUSHI
IWATA YASUHIRO
MINAMIDA TOMOATSU
Application Number:
JP2019109594A
Publication Date:
December 17, 2020
Filing Date:
June 12, 2019
Export Citation:
Assignee:
DAIKIN IND LTD
International Classes:
F25B7/00; F25B13/00; F25B39/00; F28D9/00; F28F1/02; F28F3/08
Domestic Patent References:
| JP2002130979A | 2002-05-09 |
Foreign References:
| WO2018235832A1 | 2018-12-27 | |||
| WO2017130399A1 | 2017-08-03 | |||
| WO2015111175A1 | 2015-07-30 |
Attorney, Agent or Firm:
Shinki Global IP Patent Corporation