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Title:
COMPRESSOR
Document Type and Number:
Japanese Patent JP2008175111
Kind Code:
A
Abstract:

To sufficiently secure the opening area of a bypass passage opening to a compression chamber.

This compressor 20 comprises a low stage side compression mechanism 40a having a low stage side cylinder 41a and a low stage side piston 47a and compressing a refrigerant in a low stage side cylinder chamber 42a. A bypass passage 66 having an upstream side end opening to the low stage side cylinder chamber 42a, discharging a part of the refrigerant from the low stage side cylinder chamber 52a, and returning it to the suction side of the low stage side compression mechanism 40a is formed in the low stage side compression mechanism 40a. The cross section of the bypass passage 66 at the upstream end is rectangular in the circumferential direction of a rotating shaft X.


Inventors:
AZUMA HIROFUMI
KOSHO KAZUHIRO
Application Number:
JP2007008219A
Publication Date:
July 31, 2008
Filing Date:
January 17, 2007
Export Citation:
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Assignee:
DAIKIN IND LTD
International Classes:
F04C28/26; F04C18/32; F04C23/00
Domestic Patent References:
JPS6082596U1985-06-07
JP2000073974A2000-03-07
JPS6027798A1985-02-12
JPH10141270A1998-05-26
Attorney, Agent or Firm:
Hiroshi Maeda
Hiroshi Takeuchi
Takahisa Shimada
Yuji Takeuchi
Katsumi Imae
Atsushi Fujita
Kazunari Ninomiya
Tomoo Harada
Iseki Katsumori
Seki Kei
Yasuya Sugiura



 
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