Fuel injection valve
US6371441B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 7, 2000 |
| Grant date | Apr 16, 2002 |
| Priority date | — |
| Expiry date | Dec 7, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M61/205
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel injection valve, including a valve member which can control the opening and closing of a fuel outlet opening, an actuating mechanism which can move the valve member, and a compensation device which can exert compensation forces on the valve member that counteract an opening stroke of the valve member, wherein the compensation device has a piston which is supported so that it can move in an associated cylinder, wherein at one end, the piston defines a hydraulic chamber in the cylinder, which is acted on with a reference pressure, and in a starting position, the piston is supported at the other end against a stop that is stationary in relation to the cylinder, and via a force transmission mechanism, the valve member can drive the piston out of its starting position away from the stop. In this manner valve operation should be improved with regard to its controllability. This is achieved by virtue of the fact that the force transmission mechanism is embodied as springs that are stressed by the valve member during the opening stroke of the valve member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.