Combination of cylinder liner and piston ring of internal combustion engine
US6553957B1 · kind B1 · utility
30Cited by
12References
9Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jun 20, 2001 |
| Grant date | Apr 29, 2003 |
| Priority date | — |
| Expiry date | Jun 20, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02F5/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A cylinder liner and a piston ring adapted to be combined therewith in an internal combustion engine are provided that have excellent abrasion resistance, where iron oxide film is formed at least on a part of the inner circumferential surface of the cylinder liner, and metallic nitride film is formed at least on a sliding surface of the piston ring sliding along the cylinder liner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.