Injection valve with a corrosion-inhibiting, wear-resistant coating and method for the production thereof
US7506826B2 · kind B2 · utility
9Cited by
5References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 3, 2003 |
| Grant date | Mar 24, 2009 |
| Priority date | — |
| Expiry date | Dec 26, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49405
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel injector for injecting water, in particular into the gas flow of fuel cells, has a valve needle having joined to its spray-discharge end a valve-closure member, which cooperates with a valve-seat surface formed on a valve-closure member a sealing seat. A spray-discharge orifice is provided downstream from the sealing seat, at least a portion of the surfaces of the fuel injector that come into contact with water being coated by a corrosion-inhibiting and/or friction-reducing coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.