Fuel injector
US6422199B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 2000 |
| Grant date | Jul 23, 2002 |
| Priority date | — |
| Expiry date | Sep 30, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M2200/44
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present invention provides a fuel injector comprising a nozzle body within which first and second valve needles are slidable. The first valve needle is engagable with a first seating to control fuel injection from a first outlet opening provided in the nozzle body and the second valve needle is engagable with a second seating to control fuel injection from a second outlet opening provided in the nozzle body. The fuel injector further comprises first and second control chambers for fuel, whereby fuel pressure within the first and second control chambers controls movement of the first and second valve needles away from their respective seatings so as to permit fuel delivery from a selected outlet opening. The first and second valve needles being arranged adjacent to one another.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.