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Title:
EJECTOR CYCLE
Document Type and Number:
Japanese Patent JP2002349978
Kind Code:
A
Abstract:

To supply sufficient amount of lubrication oil to a compressor, even when an ejector cycle continues to be operated continuously for a long time.

An oil return piping 510, which returns the lubrication oil separated from a refrigerant inside a gas-liquid separator 500 to the suction side of the compressor 100, is installed. Herewith, since sufficient amount of lubrication oil can be supplied to the compressor 100, even when the ejector cycle continues to be operated continuously over a long time, the compressor 100 can be prevented from seizing due to shortage of the lubrication oil. Also, since a liquid refrigerant, which must be normally sucked into the side of an evaporator 300, can be prevented from being sucked into the side of the compressor 100 and the amount of the lubrication oil sucked into the evaporator 300 can be reduced, resulting reduction in the amount of the liquid refrigerant sucked into the evaporator 300 is prevented and lowering of the refrigeration capacity (endothermic amount) generated in the evaporator 300 can be prevented.


Inventors:
KUME YOSHITAKA
TAKEUCHI HIROTSUGU
MAKITA KAZUHISA
TAKEUCHI MASAYUKI
ISHIKAWA HIROSHI
Application Number:
JP2001224648A
Publication Date:
December 04, 2002
Filing Date:
July 25, 2001
Export Citation:
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Assignee:
DENSO CORP
International Classes:
F25B1/00; F25B9/00; F25B39/02; F25B43/00; (IPC1-7): F25B1/00; F25B39/02
Domestic Patent References:
JP2002130874A2002-05-09
JPH0618866U1994-03-11
JPH037867A1991-01-16
JPH10111047A1998-04-28
JPH06123511A1994-05-06
JPH10115470A1998-05-06
JPH0611197A1994-01-21
JPH0346267U1991-04-30
JPH11257805A1999-09-24
JPH1194380A1999-04-09
JPH08240363A1996-09-17
Attorney, Agent or Firm:
Yoji Ito (2 outside)



 
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