Fuel control for a gas turbine engine reheat system
US4229939A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 22, 1979 |
| Grant date | Oct 28, 1980 |
| Priority date | — |
| Expiry date | Jan 22, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel control for a gas turbine engine reheat system has a plurality of metering valves operated by an electrical control circuit for regulating fuel flow from a pump to respective burners of the reheat system. The pump has an inlet throttle which is also operated by the control circuit so that pump delivery is substantially equal to the sum of the detected fuel flows through the metering valves. The value of a measured pressure drop across one metering valve is compared with a desired value of that pressure drop, and a difference between these values is used to adjust the control signal to the pump inlet throttle, and thereby render the pump delivery more nearly equal to the aforesaid total flow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.