Dual mode fuel injection system and fuel injector for same
US6945475B2 · kind B2 · utility
17Cited by
19References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2002 |
| Grant date | Sep 20, 2005 |
| Priority date | — |
| Expiry date | Apr 25, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M2200/46
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel injection system has the ability to produce two different spray patterns depending on the positioning of a needle control valve member. Positioning of the needle control valve member determines which of the two needle control chambers are placed in a low pressure condition. First and second needle valve members have closing hydraulic surfaces exposed to fluid pressure in the two needle control chambers. The injector preferably includes a homogenous charge nozzle outlet set and a conventional nozzle outlet set controlled respectively, by the first and second needle valve members.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.