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Title:
ROTARY FLUID MACHINE
Document Type and Number:
Japanese Patent JP2008106669
Kind Code:
A
Abstract:

To reduce mechanical loss at a slide part of a fixed member and a movable member.

In a compressor 1, a piston 60 rotates eccentrically with respect to a cylinder 70 to change volume of a cylinder chamber C formed between the cylinder 70 and the piston 60. A cylinder side end plate part 41 slidingly contacting a tip surface 66 of the piston 60 and defining the cylinder chamber C is integrally provided in a base end side of the cylinder 70. A piston side end plate part 61 slidingly contacting tip surfaces 75, 76 of the cylinder 70 and defining the cylinder chamber C is integrally provided in a base end side of the piston 60. Coating films 67, 78, 79 for reducing friction are provided on only tip surfaces 66, 75, 76 thereof in at least one of the cylinder 70 and the piston 60.


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Inventors:
SHIMIZU TAKASHI
SHIBAMOTO YOSHITAKA
KOSHO KAZUHIRO
SATA KENICHI
SOTOJIMA RYUZO
MASUDA MASANORI
Application Number:
JP2006290022A
Publication Date:
May 08, 2008
Filing Date:
October 25, 2006
Export Citation:
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Assignee:
DAIKIN IND LTD
International Classes:
F04C29/02; C09K5/04; C10M103/00; C10M103/02; C10M107/38; C10M169/04; F01C21/04; F04C18/02; F04C18/32; F04C27/00; C10N30/06; C10N40/02; C10N50/08
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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