Fuel injection valve and method of manufacturing the same
US5996910A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 4, 1997 |
| Grant date | Dec 7, 1999 |
| Priority date | — |
| Expiry date | Nov 4, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49433
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel injection valve has a single pipe member made of composite magnetic material which can be processed to form ferro-magnetic structures and non-magnetic structures. A magnetic fuel connector, a magnetic valve body, a nonmagnetic intermediate pipe are formed in the single pipe member. An electromagnetic solenoid is disposed around the intermediate pipe, and a needle valve is disposed in the valve body. A magnetic stationary core is disposed inside the fuel connector, and a magnetic movable core is disposed inside the valve body in a magnetic circuit composed of the solenoid, the fuel connector, the stationary core and the valve body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.