Title:
PISTON RING
Document Type and Number:
WIPO Patent Application WO/2012/176846
Kind Code:
A1
Abstract:
In order to provide a piston ring with high thermal conductivity, which can be used in the high thermal load environment of an engine, and which has excellent scuff resistance and abrasion resistance, and, moreover, in order to provide a piston ring that contributes to improvements in fuel consumption due to low friction, by optimizing ion plating film deposition conditions, the outer periphery of this piston ring is coated with a TiN film at a thickness of 10 to 60 μm such that the (111) plane structural coefficient is 1.2 to 1.65 according to X-ray diffraction measurement of the surface covered by the film, and the (111) plane structural coefficient > the (220) plane structural coefficient > the (200) plane structural coefficient. Furthermore, in order to obtain excellent low friction sliding characteristics without compromising the excellent thermal conductivity of TiN, the TiN coating is further coated with an amorphous hard carbon film.
Inventors:
SEKIYA TAKUMA (JP)
MURAYAMA YUUICHI (JP)
SATO MASAYUKI (JP)
SHIMA YUJI (JP)
TAKAHASHI JUNYA (JP)
MORONUKI MASAKI (JP)
MURAYAMA YUUICHI (JP)
SATO MASAYUKI (JP)
SHIMA YUJI (JP)
TAKAHASHI JUNYA (JP)
MORONUKI MASAKI (JP)
Application Number:
PCT/JP2012/065880
Publication Date:
December 27, 2012
Filing Date:
June 21, 2012
Export Citation:
Assignee:
RIKEN KK (JP)
SEKIYA TAKUMA (JP)
MURAYAMA YUUICHI (JP)
SATO MASAYUKI (JP)
SHIMA YUJI (JP)
TAKAHASHI JUNYA (JP)
MORONUKI MASAKI (JP)
SEKIYA TAKUMA (JP)
MURAYAMA YUUICHI (JP)
SATO MASAYUKI (JP)
SHIMA YUJI (JP)
TAKAHASHI JUNYA (JP)
MORONUKI MASAKI (JP)
International Classes:
F16J9/26; C23C14/06; F02F5/00
Foreign References:
| JPH11230342A | 1999-08-27 | |||
| JPH11172413A | 1999-06-29 | |||
| JPH06221436A | 1994-08-09 | |||
| JPH02259048A | 1990-10-19 | |||
| JP2000337511A | 2000-12-05 | |||
| JP2009299142A | 2009-12-24 | |||
| JPH06346224A | 1994-12-20 | |||
| JPH06265023A | 1994-09-20 | |||
| JPH06172970A | 1994-06-21 | |||
| JPH0694130A | 1994-04-05 | |||
| JPH11230342A | 1999-08-27 | |||
| JP2009299142A | 2009-12-24 |
Other References:
See also references of EP 2725265A4
TAKEO OKI, SURFACE TECHNOLOGY, vol. 41, no. 5, 1990, pages 462 - 470
X. Z. DING ET AL., SIM TECH TECHNICAL REPORTS, vol. 11, no. 2, 2010, pages 81 - 85
TAKEO OKI, SURFACE TECHNOLOGY, vol. 41, no. 5, 1990, pages 462 - 470
X. Z. DING ET AL., SIM TECH TECHNICAL REPORTS, vol. 11, no. 2, 2010, pages 81 - 85
Attorney, Agent or Firm:
TAKAISHI Kitsuma (JP)
Kitsuma Takaishi (JP)
Kitsuma Takaishi (JP)
Download PDF:
Claims:
Previous Patent: METHOD FOR MANUFACTURING REFINED CHLOROGENIC ACIDS COMPOSITION
Next Patent: PISTON RING
Next Patent: PISTON RING