Fuel injector including outer valve needle and inner valve needle slidable within a passage provided in the outer valve needle
US6431469B1 · kind B1 · utility
14Cited by
9References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2001 |
| Grant date | Aug 13, 2002 |
| Priority date | — |
| Expiry date | Apr 20, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M2200/46
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel injector comprises a first needle, and a second needle slidably within a passage formed in the first needle. The needles are engageable with respective seatings to control fuel delivery through respective groups of outlet openings. Load transmitting means are provided whereby movement of the first needle can be transmitted to the second needle. Also described is an injector in which a second needle is provided with formations defining an integral resilient biasing arrangement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.