Fuel injection valve
US5950932A · kind A · utility
25Cited by
0References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 30, 1998 |
| Grant date | Sep 14, 1999 |
| Priority date | — |
| Expiry date | Jan 30, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M61/166
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel injection valve is composed of a stationary core, a driving coil, a movable core driven by the driving coil, a valve seat having a nozzle and a valve member integrated with the movable. The movable core is made of powdered soft magnetic material and the valve member is made of powdered hard non-magnetic material, and the movable core and the valve member are molded with resin. The movable core is sintered and hardened and the valve member is annealed thereafter. Preferably, the movable core is made of ferritic stainless steel, and the valve member is made of martensitic stainless steel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.