Valve needle for an electromagnetically actuated valve
US5632467A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 1995 |
| Grant date | May 27, 1997 |
| Priority date | — |
| Expiry date | May 5, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S239/90
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A valve needle includes a valve needle section which connects the armature section and the valve closing element section, the valve needle section having a solid construction. In order to ensure that the fuel flows in the direction of the valve seat, at least two axial grooves are provided in the armature section. The axial grooves in the armature section are constructed in such a way that the emerging fuel can flow along the outer circumference of the valve needle section in the direction of the valve seat. The valve needle is particularly suitable for injection valves in fuel injection systems of mixture-compression, spark-ignition internal combustion engines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.