Fuel injector
US6612508B2 · kind B2 · utility
10Cited by
8References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 12, 2001 |
| Grant date | Sep 2, 2003 |
| Priority date | — |
| Expiry date | Jan 22, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M61/08
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel injector for delivering fuel to a combustion space comprises a valve needle which is movable within a bore provided in a nozzle body and which is engageable with a seating to control the supply of fuel from the bore. The injector further comprises a return flow passage for permitting fuel to escape from the bore to a low pressure drain upon initial movement of the valve needle away from its seating. The injector may include a cover member which defines, together with the nozzle body, a part of the return passage for fuel through which fuel flows, in use, to reduce the temperature of the nozzle body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.