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Title:
RECIPROCATING COMPRESSOR
Document Type and Number:
Japanese Patent JP2012017851
Kind Code:
A
Abstract:

To improve the piston ring of a reciprocating compressor such that aggression against a cylinder is lowered and wear resistance is enhanced.

The reciprocating fluid machine having the piston rings 2 whose base material is PTFE and which are filled with a reinforcing material, a lubricating material or others, the piston 1 around which the piston rings 2 are arranged, and the cylinder 4 of metal in which the piston 1 is slidably supported is characterized in that the piston rings 2 is filled with a lubricating material and a spherical carbon material.


Inventors:
MIYAKE SHINGO
KOMATSU KAZUNARI
Application Number:
JP2011177573A
Publication Date:
January 26, 2012
Filing Date:
August 15, 2011
Export Citation:
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Assignee:
HITACHI IND EQUIPMENT SYS
International Classes:
F16J9/28; C10M107/38; C10M123/04; C10M125/02; C10M125/22; F01B31/00; F04B39/00; C10N10/12; C10N20/06; C10N30/06; C10N40/02
Domestic Patent References:
JPH03115785A1991-05-16
JPS51130756A1976-11-13
JPH0359068A1991-03-14
JPS5980521A1984-05-10
JPS6449714A1989-02-27
Attorney, Agent or Firm:
Masatake Shiga