Diamond like carbon (DLC) coating for ethanol-blended fuel injector applications
US10247157B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2017 |
| Grant date | Apr 2, 2019 |
| Priority date | — |
| Expiry date | Feb 1, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M2200/956
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A vehicle part or component includes a surface that is configured to contact a fuel containing ethanol. The surface has a layer of non-hydrogenated diamond like carbon (NH-DLC) material disposed on the surface. The layer of NH-DLC has a thickness of from greater than or equal to about 100 nm to less than or equal to about 100 μm. The NH-DLC material has a carbon content of greater than or equal to about 90 atomic % (at. %), a carbon-carbon sp3 hybrid bond content of from greater than or equal to about 60% to less than or equal to about 100%, and a carbon-carbon sp2 hybrid bond content of from greater than or equal to about 0 to less than or equal to about 40%. The NH-DLC material is substantially free of hydrogen atoms. Methods for manufacturing the vehicle part or component are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.