Fuel system
US8720482B2 · kind B2 · utility
3Cited by
8References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 26, 2010 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Mar 20, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8601
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel metering unit (FMU) comprising a metering valve operable to control the supply of fuel to a delivery chamber of a pressure raising valve (PRV), the PRV including a valve member movable under the influence of the pressure within the delivery chamber between a closed position and an open position in which fuel is able to flow from the delivery chamber to an outlet port, and a push piston movable under the influence of the pressure within a control chamber to urge the valve member towards its open position, wherein the control chamber communicates with a valve control port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.