Fuel system having variable injection pressure
US7588012B2 · kind B2 · utility
27Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2005 |
| Grant date | Sep 15, 2009 |
| Priority date | — |
| Expiry date | Jun 20, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M63/0225
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel injector for a work machine is disclosed. The fuel injector has nozzle member having at least one orifice and a needle valve element having a tip end. The needle valve element is axially movable to selectively allow and block fuel flow through the at least one orifice with the tip end. The fuel injector also has at least one supply passageway in communication with the tip end of the needle valve and a variable restrictive device disposed within the at least one supply passageway.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.