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Title:
REFRIGERATION CYCLE DEVICE
Document Type and Number:
Japanese Patent JP2008309438
Kind Code:
A
Abstract:

To secure lubrication of an expander of a refrigeration cycle and to achieve improvement in reliability and improvement in efficiency.

Pressure in a sealed container of a compressor and a pressure in a sealed container of the expander 22 are kept substantially equal to the pressure of a refrigerant compressed by the compressor 21, and lubricant reservoirs 21d, 22d are respectively mounted in the sealed container 21c of the compressor 21 and in the sealed container 22c of the expander 22, and connected to each other by a communicating pipe 23. Thus, the proper amounts of lubricants can be secured in the compressor 21 and the expander 22, respectively, thereby lubricating the sliding portions, and increase in thermal transfer due to circulation of a refrigerant can be prevented to heighten the performance of the refrigerating cycle.


Inventors:
IKEDA AKIRA
MORIMOTO TAKASHI
IWASHIDA AKIRA
SAWAI KIYOSHI
SHIOTANI MASARU
Application Number:
JP2007159800A
Publication Date:
December 25, 2008
Filing Date:
June 18, 2007
Export Citation:
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Assignee:
PANASONIC CORP
International Classes:
F25B1/00; C10M105/18; C10M107/34; F04B39/02; F25B11/02; F25B43/02; C10N30/00; C10N40/30
Domestic Patent References:
JP2007113815A2007-05-10
JPH0735425A1995-02-07
JPH0819912B21996-03-04
Attorney, Agent or Firm:
Fumio Iwahashi
Hiroki Naito
Daisuke Nagano