Fuel injection valve
US7032845B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2002 |
| Grant date | Apr 25, 2006 |
| Priority date | — |
| Expiry date | Dec 23, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M2200/306
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel injector for the direct injection of fuel into a combustion chamber of an internal combustion engine is provided, which injector includes a valve needle having at its spray-discharge end a valve-closure member, which cooperates with a valve-seat surface formed on a valve-seat member to form a sealing seat. At least one swirl channel is provided in a section of the valve-seat member surrounding the valve needle, and at least one spray-discharge orifice is provided in the valve-seat member. The at least one swirl channel, when viewed through the swirl channel in the flow direction of the fuel, is inclined counter to the spray-discharge direction relative to the center axis of the valve needle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.