Fuel control system for a gas turbine engine
US5088278A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 1990 |
| Grant date | Feb 18, 1992 |
| Priority date | — |
| Expiry date | Dec 19, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02C9/58
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A gas turbine engine is supplied with fuel by way of a metering unit which includes a metering valve responsive to a servo pressure which is regulated by electrical signals from a control circuit. Failure of electrical signals to the metering unit results in the metering valve being arrested in its position at failure. A combined manually operable and shut-off valve arrangement is in series with the metering unit includes a valve which is normally biassed fully open and is operable by a manually regulated servo pressure. The manually operable arrangement also includes a device for setting the servo pressure of the valve in the metering unit to a value which maintains that metering valve fully open.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.