Title:
冷凍サイクル装置
Document Type and Number:
Japanese Patent JP5536817
Kind Code:
B2
Abstract:
An object is to prevent performance deterioration by a refrigerant having a low global warming potential (GWP) and to decrease the diameter of a connection pipe. A refrigerating cycle device includes a compressor 1, a heat source-side heat exchanger 3, a first expansion device 4, a liquid-side connection pipe 7, a second expansion device 21, a user-side heat exchanger 22, and a gas-side connection pipe 8 sequentially connected. In addition, a refrigerating cycle uses a refrigerant of R32. The outer diameters of the liquid-side connection pipe and the gas-side connection pipe are set to "(D 0 -1)/8 inch" (wherein "D 0 /8 inch" is the outer diameter of a connection pipe in the use of a refrigerant of R410A). The liquid-side connection pipe has a range of the Do given "2 ¤ D 0 ¤ 4" and the gas-side connection pipe has a range of the Do given "3 ¤ D 0 ¤ 8".
Inventors:
Hiroaki Tsuboe
Atsuhiko Yokoseki
Fukuji Tsukada
Susumu Nakayama
Atsuhiko Yokoseki
Fukuji Tsukada
Susumu Nakayama
Application Number:
JP2012069583A
Publication Date:
July 02, 2014
Filing Date:
March 26, 2012
Export Citation:
Assignee:
Hitachi Appliances, Inc.
International Classes:
F25B1/00; F25B41/00
Domestic Patent References:
| JP2001248922A | ||||
| JP2001183020A | ||||
| JP2001248941A | ||||
| JP2011242048A | ||||
| JP2001194016A |
Foreign References:
| WO2000052397A1 |
Attorney, Agent or Firm:
Polaire Patent Business Corporation