Fuel injector
US9903327B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 2015 |
| Grant date | Feb 27, 2018 |
| Priority date | — |
| Expiry date | Jul 27, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M2200/306
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel injector includes a valve with a needle that is movable along a longitudinal axis between an open position and a closed position, for opening or closing the valve. The fuel injector also includes an actuator including an armature and a pole piece, the armature being axially movable and operable to interact mechanically with the needle, such that the needle is moved towards the open position by a movement of the armature in axial direction towards the pole piece. The fuel injector also includes a first spring for biasing the armature in axial direction away from the pole piece. The spring force of the first spring is configured to stop said movement of the armature when the needle is in the open position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.