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US 6,810,674 B2Granted
Fuel delivery system
AssigneeArgo-Tech Corporation
InventorMartin A. Clements
Life of this patent
Estimating the term…
Abstract
A fuel delivery system provides for closed loop mass flow control of fuel between a metering valve and a pump, such as a variable delivery pump. Changes in pressure across the metering valve are monitored and pump operation is altered in response thereto. A thermal controller monitors fuel temperature and recirculates a portion of the fuel flow through a heat exchanger. The fuel delivery system can be provided as original equipment or as a retrofit.
Claims17
A fuel delivery system comprising:
- a pump for pressurizing, fuel;
- a metering valve downstream of the pump for selectively regulating fuel delivery;
- and
- a mass flow controller for regulating a desired mass flow of fuel to an associated turbine engine, the mass flow controller including an electronic control means providing a closed loop of metered mass flow by providing a sensed signal indicative thereof and for altering pump operation in response thereto.
1 more element
A method of controlling fuel delivery to a turbine engine comprising the steps of:
- pressurizing fuel through a pump;
- metering the fuel through a metering valve for supply to associated fuel nozzles;
- and
- controlling mass flow of the fuel by monitoring the change in pressure through the metering valve;
- and
- electronically calculating the fuel mass flow and varying the pump in response thereto.
3 more elements
A fuel delivery system comprising:
- a pump for pressurizing fuel;
- a metering valve downstream of the pump for selectively regulating fuel delivery;
- a thermal controller that monitors fuel temperature wherein the thermal controller includes a control valve interposed between actuator supply and return lines;
- and
- a mass flow controller for regulating a desired mass flow of fuel to an associated turbine engine.
2 more elements
Dependencies are inferred from the claim text.