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Title:
REFRIGERATING AIR CONDITIONER
Document Type and Number:
Japanese Patent JP2001241780
Kind Code:
A
Abstract:

To improve safety of a refrigerating air conditioner for filling a refrigerant such as an R32, an R290 or the like, that is, a refrigerant having small possibility of an ozonosphere fracture having combustibility and a small GWP by improving an efficiency of a refrigerating cycle and reducing in size the air conditioner.

The refrigerant is injected from a high pressure or intermediate pressure part of a refrigerant circuit such as a gas-liquid separator, a liquid tube or the like to the intermediate pressure part of a compressor side such as piping or the like for connecting a compressing chamber of an intermediate pressure state or a low stage side compressor to a high stage side compressor. Thus, a COP and a refrigerating capability are improved.


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Inventors:
NAKAYAMA MASAHIRO
YOSHIKAWA TOSHIAKI
MAKINO HIROAKI
Application Number:
JP2000056335A
Publication Date:
September 07, 2001
Filing Date:
March 01, 2000
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
F25B1/00; F25B1/10; F25B13/00; (IPC1-7): F25B1/00; F25B1/10
Domestic Patent References:
JPH11257805A1999-09-24
JPH10325622A1998-12-08
JPH0285662A1990-03-27
JPH08144971A1996-06-04
JPH05302760A1993-11-16
JPS6341771A1988-02-23
JPS58265U1983-01-05
Attorney, Agent or Firm:
Soga Doteru (6 people outside)



 
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