Modulating fuel for a turbine engine
AssigneeGeneral Electric Company
InventorDavid Justin Brady
Life of this patent
Estimating the term…
Abstract
A fuel supply system for a turbine engine that provides a modulated thrust control malfunction accommodation (TCMA) is disclosed. An example fuel supply system includes a fuel supply line to supply fuel to a combustion engine, a fuel metering valve coupled to the fuel supply line, the fuel metering valve to control a flow of fuel through the fuel supply line to the combustion engine, a throttle valve coupled to the fuel supply line downstream of the fuel metering valve, the throttle valve to bleed off fuel supplied to the combustion engine based on a pressure difference across the fuel metering valve, and a controllable servo coupled to the throttle valve, the controllable servo to control the throttle valve based on a sensor output indicative of the pressure difference.
Claims19
A fuel supply system comprising:
- a fuel supply line to supply fuel to a combustion engine;
- a fuel metering valve coupled to the fuel supply line, the fuel metering valve to control a flow of fuel through the fuel supply line to the combustion engine;
- a throttle valve coupled to the fuel supply line downstream of the fuel metering valve, the throttle valve to bleed off fuel supplied to the combustion engine based on a pressure difference across the fuel metering valve, the throttle valve having a controllable position;
- and
- a controllable servo coupled to the throttle valve, the controllable servo to control the throttle valve to set the controllable position based on a sensor output received from a sensor positioned with respect to the fuel metering valve, the sensor output indicative of the pressure difference across the fuel metering valve, the controllable position of the throttle valve set by the controllable servo to modulate the flow of fuel.
A fuel supply system comprising:
- a fuel pump;
- a combustor;
- a fuel metering valve coupled to the fuel pump and the combustor through a fuel supply line;
- a throttle valve coupled to the fuel supply line downstream of the fuel metering valve, the throttle valve having a controllable position to modulate a flow of fuel by bleeding off a portion of fuel supplied to the combustor;
- a pressure sensor coupled to the throttle valve;
- and
- a controllable servo coupled to the throttle valve and the pressure sensor, the controllable servo to set the controllable position of the throttle valve based on a pressure difference across the fuel metering valve as sensed by a second pressure sensor.
An engine comprising:
- a fuel tank;
- a fuel pump coupled to the fuel tank;
- a fuel metering valve coupled to the fuel pump;
- a combustor coupled to the fuel metering valve;
- a throttle valve coupled to the fuel metering valve and the combustor, a position of the throttle valve controllable by a controllable servo to modulate a flow of fuel by bleeding off a portion of fuel supplied to the combustor;
- a pressure sensor coupled to the throttle valve;
- and
- the controllable servo coupled to the throttle valve and the pressure sensor based on a pressure difference across the fuel metering valve as sensed by a second pressure sensor.
Dependencies are inferred from the claim text.