Fuel injection valve
US6682046B2 · kind B2 · utility
4Cited by
6References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2002 |
| Grant date | Jan 27, 2004 |
| Priority date | — |
| Expiry date | Aug 6, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K31/0651
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel injection valve includes, in part, a pipe, a fixed connector (fixed core), a movable core, a solenoid coil and a needle valve. In the fuel injection valve, a diameter of a fixed action surface of the fixed connector is made smaller than a movable action surface of the movable core. Therefore, magnetic flux around an outer circumferential portion is transmitted from the fixed action surface to the movable action surface substantially in a direction perpendicular to the movable action surface. Thus, an electromagnetic force acting therebetween is efficiently transformed to an attracting force for the movable core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.