Title:
COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2012/090760
Kind Code:
A1
Abstract:
Separation of resin layers formed on the end face or the like of a piston in a compressor is prevented while the reduction in compressor efficiency is minimized. The compressor includes: a cylinder having a compression chamber, and a blade housing in communication with the compression chamber; a front head and a rear head provided on both ends of the cylinder; and a piston provided inside the compression chamber and blade housing. The piston has an annular roller provided in the compression chamber, and a blade extending from the outer circumferential surface of the roller, the blade being able to advance and retract with respect to the blade housing. Resin layers (44a, 44b) obtained by layering four layers are formed on the axial end faces of the piston. In the resin layers (44a, 44b), the hardness of the fourth layer farthest from a base material (43) is lower than the hardness of the first layer closest to the base material (43), and the difference in hardness between adjacent layers (L1 - L2, L2 - L3, L3 - L4) is less than the difference in hardness (L1 - L4) between the fourth layer farthest from the base material (43) and the first layer closest to the base material.
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Inventors:
HAYASHI TAKEO (JP)
YAMAMOTO YUUICHI (JP)
HIGUCHI MASAHIDE (JP)
ENDOU CHIHIRO (JP)
YAMAMOTO YUUICHI (JP)
HIGUCHI MASAHIDE (JP)
ENDOU CHIHIRO (JP)
Application Number:
PCT/JP2011/079359
Publication Date:
July 05, 2012
Filing Date:
December 19, 2011
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
HAYASHI TAKEO (JP)
YAMAMOTO YUUICHI (JP)
HIGUCHI MASAHIDE (JP)
ENDOU CHIHIRO (JP)
HAYASHI TAKEO (JP)
YAMAMOTO YUUICHI (JP)
HIGUCHI MASAHIDE (JP)
ENDOU CHIHIRO (JP)
International Classes:
F04C18/02; F04C18/356; F04C18/32; F04C29/00
Foreign References:
| JP2007204602A | 2007-08-16 | |||
| JPS5373222A | 1978-06-29 | |||
| JP2005337129A | 2005-12-08 | |||
| JPS62253987A | 1987-11-05 | |||
| JPH02218883A | 1990-08-31 | |||
| JP2010037451A | 2010-02-18 | |||
| JP2006275280A | 2006-10-12 |
Other References:
See also references of EP 2660472A4
Attorney, Agent or Firm:
KAJI, Yoshiyuki et al. (JP)
梶 Yoshiyuki (JP)
梶 Yoshiyuki (JP)
Download PDF:
Claims:
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