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Title:
REFRIGERATING CYCLE DEVICE
Document Type and Number:
Japanese Patent JP2009186054
Kind Code:
A
Abstract:

To provide a refrigerating cycle device improved in performance and reliability, which positively supplying refrigerating machine oil to each of a first compressor and a second compressor.

The refrigerating cycle device using an expansion machine 5a and the second compressor 5b driven by recovered power of the expansion machine 5a is provided with an oil separator 60 at an outlet part of the first compressor 1. The refrigerating cycle device has a structure for returning the separated oil to a suction part of the second compressor 5b to positively supply the oil to the second compressor 5b, and reduces an oil circulating rate inside a refrigerating cycle.


Inventors:
OKAZAKI TAKASHI
HATOMURA SUGURU
Application Number:
JP2008023897A
Publication Date:
August 20, 2009
Filing Date:
February 04, 2008
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
F25B1/00; F25B1/10; F25B6/02; F25B11/02; F25B43/02
Domestic Patent References:
JP2007255889A2007-10-04
JP2006275495A2006-10-12
JPS6158465A1986-03-25
JP2007192508A2007-08-02
JP2007115096A2007-05-10
JP2004279014A2004-10-07
Foreign References:
WO2007023599A12007-03-01
Attorney, Agent or Firm:
Michiharu Soga
Hidetoshi Furukawa
Suzuki Kenchi
Kajinami order
Kazuhiro Oyaku
Shunichi Ueda