Coated piston and a method of making a coated piston
US8863720B2 · kind B2 · utility
2Cited by
17References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 31, 2012 |
| Grant date | Oct 21, 2014 |
| Priority date | — |
| Expiry date | Oct 31, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A piston for a diesel internal combustion engine including a crown portion at least partially formed of steel and having a combustion surface with a combustion bowl formed therein is provided. The combustion bowl presents a combustion bowl rim area, and a coating including at least one of a noble metal and a refractory metal is applied to substantially only the combustion bowl rim area. The coating is preferably applied in the areas of the combustion bowl rim area that are in line with the sprays of diesel fuel when the piston is in a top dead center position during operation of the engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.