Title:
PISTON RING
Document Type and Number:
WIPO Patent Application WO/2008/062863
Kind Code:
A1
Abstract:
Disclosed is a piston ring which is fitted into a ring groove of an aluminum alloy piston and enables to prevent aluminum adhesion over a long time. A resin coating film containing 0.5-20% by volume of a carbon black particle and 3-30% by volume of a solid lubricant particle relative to the total of the coating film is formed on at least one of the upper and lower surfaces of a piston ring. The carbon black particle may preferably contain at least one of a graphitized carbon black particle and a composite graphite black particle.
Inventors:
HAYASHI TOSHIKATSU (JP)
MURAMATSU GYO (JP)
USUI MIYUKI (JP)
WATANABE YOSHINARI (JP)
SAITOU HIROAKI (JP)
MURAMATSU GYO (JP)
USUI MIYUKI (JP)
WATANABE YOSHINARI (JP)
SAITOU HIROAKI (JP)
Application Number:
PCT/JP2007/072636
Publication Date:
May 29, 2008
Filing Date:
November 22, 2007
Export Citation:
Assignee:
RIKEN KK (JP)
HAYASHI TOSHIKATSU (JP)
MURAMATSU GYO (JP)
USUI MIYUKI (JP)
WATANABE YOSHINARI (JP)
SAITOU HIROAKI (JP)
HAYASHI TOSHIKATSU (JP)
MURAMATSU GYO (JP)
USUI MIYUKI (JP)
WATANABE YOSHINARI (JP)
SAITOU HIROAKI (JP)
International Classes:
F16J9/26; C09D7/61; F02F5/00
Foreign References:
| JPH10246149A | 1998-09-14 | |||
| JPH0115990A | ||||
| JP2005036819A | 2005-02-10 |
Attorney, Agent or Firm:
ARIMA, Momoko (Intellectual Property Dept.Technologies Management Div.,14-1, Suehiro 4-chom, Kumagaya-shi Saitama 22, JP)
Download PDF:
Previous Patent: PNEUMATIC TIRE
Next Patent: VIRTUAL MACHINE LOCATING SYSTEM, VIRTUAL MACHINE LOCATING METHOD, PROGRAM, VIRTUAL MACHINE MANAGEMEN...
Next Patent: VIRTUAL MACHINE LOCATING SYSTEM, VIRTUAL MACHINE LOCATING METHOD, PROGRAM, VIRTUAL MACHINE MANAGEMEN...