Electromagnetic metering valve for a fuel injector
US5820101A · kind A · utility
18Cited by
7References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 9, 1997 |
| Grant date | Oct 13, 1998 |
| Priority date | — |
| Expiry date | Dec 9, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M2547/003
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The metering valve has a shutter for a discharge conduit, and an electromet for controlling an armature disconnected from a respective stem and sliding along the stem by means of a respective sleeve; the stem is guided by a bush and pushed by a first spring to keep the shutter in the closed position; and the armature is held axially resting against the stem by a second spring preloaded between the armature and an annular shoulder of the stem, so as not to affect the action of the first spring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.