Fuel system
US6813876B2 · kind B2 · utility
10Cited by
4References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2003 |
| Grant date | Nov 9, 2004 |
| Priority date | — |
| Expiry date | May 21, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02C9/34
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel system for a gas turbine engine having a main burner fuel supply line and a pilot burner fuel supply line, a high pressure pump supplying fuel to the main and pilot burner supply lines in use, a throttle valve controlling the flow of fuel in the main burner supply line, a metering valve controlling the flow of fuel in the pilot burner supply line, and a pressure raising valve between the pilot burners and the metering valve, the pressure raising valve serving to maintain the upstream fuel pressure to a pre-determined amount in excess of the pressure of fuel supplied from the throttle valve to the main burners.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.