Title:
COMBINATION OF CYLINDER AND PISTON RING
Document Type and Number:
WIPO Patent Application WO/2013/137060
Kind Code:
A1
Abstract:
Provided is a combination of a cylinder and a piston ring that is capable of maintaining wear resistance and the smooth shape of the inner-circumferential surface of the cylinder over the long term, when combining a piston ring having a hard carbon film on the outer surface thereof with a cylinder comprising an aluminum alloy. A combination of a cylinder and a piston ring equipped with a cylinder (62) for an internal combustion engine and a piston ring (40) for sliding along the inner-circumferential surface of the cylinder, wherein: at least the sliding surface-side of the cylinder comprises an aluminum alloy containing Si in the amount of 8-22 mass%, inclusive, and including particles of at least one type selected from a group consisting of Si, Al2O3, and SiO2 particles having a diameter of 3 μm or more; and at least the outer-circumferential surface of the piston ring is covered with a hard-carbon film (14) configured from only hydrogen and carbon, or from hydrogen, carbon and nitrogen.
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Inventors:
TSUJI KATSUHIRO (JP)
SHINOHARA AKIO (JP)
MORONUKI MASAKI (JP)
SHINOHARA AKIO (JP)
MORONUKI MASAKI (JP)
Application Number:
PCT/JP2013/055977
Publication Date:
September 19, 2013
Filing Date:
March 05, 2013
Export Citation:
Assignee:
RIKEN KK (JP)
International Classes:
F02F5/00; F02F1/00; F16J9/26; F16J10/00
Foreign References:
| JP2008286354A | 2008-11-27 | |||
| JP2010274386A | 2010-12-09 | |||
| JP2006283970A | 2006-10-19 | |||
| JP2004347053A | 2004-12-09 | |||
| JP2008241032A | 2008-10-09 | |||
| JP2008095966A | 2008-04-24 | |||
| JP2001280497A | 2001-10-10 |
Other References:
See also references of EP 2826983A4
Attorney, Agent or Firm:
AKAO Kenichiro et al. (JP)
Ken-ichiro Akao (JP)
Ken-ichiro Akao (JP)
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