Method for producing a valve-seat body for a fuel injection valve, and corresponding fuel injection valve
US6189816A · kind A · utility
11Cited by
3References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 19, 1999 |
| Grant date | Feb 20, 2001 |
| Priority date | — |
| Expiry date | Aug 19, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49426
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Besides the conventional process steps of manufacturing a valve-seat body, forming a through opening inside the valve-seat body, forming a valve-seat as a frustoconical section of the through opening, and forming a guide area, the proposed method for manufacturing a valve seat for a fuel injector includes the simultaneous fine-machining of all guide sections in the guide area and the valve-seat area using a master ball.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.