Method for machining control edges of a valve for a fuel injection device of an internal combustion engine and fuel injection device with such a valve
US6371382B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 1999 |
| Grant date | Apr 16, 2002 |
| Priority date | — |
| Expiry date | Nov 29, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86622
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The invention relates to a method for machining control edges of a valve, preferably of a valve for a fuel injection device of an internal combustion engine, with the fuel injection device having at least one piston with control edges which co-operate with control edges fixedly connected to a valve, wherein respectively co-operating control edges are machined in one single machining operation with the aid of one single tool. The invention also relates to a fuel injection device with a valve which has control edges machined according to this method and which activates at least one injection valve body for closing off nozzle openings, wherein the valve is controlled by a control unit and is equipped with working connections by which a pressure medium is supplied to a control piston for displacing the injection valve body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.