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AssigneeHispano Suiza
InventorsJean-Marie Brocard, Regis Michel Paul Deldalle, Philippe Galozio, Michel Martini, Alain Michel Varizat
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A fuel supply device includes a fuel supply pipe receiving fuel at a non-regulated pressure delivered by a pump, a device for measuring the flow rate of fuel in the pipe, a first controlled variable-restriction valve mounted in the supply pipe, a control system connected to the flow rate measurement device and to the first valve to control the valve to deliver fuel to the engine at a desired flow rate under normal operating conditions of the engine, a second controlled variable-restriction valve mounted in the supply pipe in series with the first valve, and a control for controlling the second valve to enable the engine to be supplied with fuel at an adjustable, reduced flow rate in response to detecting over-speed or over-thrust of the engine.
1-10. (canceled)
A supply device for supplying fuel at a regulated flow rate to a gas turbine engine, the device comprising:
A device according to claim 10, in which the flow rate measurement device is a mass flow meter and the control system includes a local servo-control circuit receiving a mass flow rate setpoint value from an automatic regulation system of the engine.
A device according to claim 10, in which the flow rate measurement device is a volumetric flow meter.
A device according to claim 10, in which the flow rate measurement device is a device for measuring flow rate on the basis of knowledge of a pressure drop and flow section through the measurement device.
A device according to claim 10, in which the first valve is an electrically-controlled direct-control valve.
A device according to claim 10, in which the second valve is a direct-control valve controlled electrically by at least one electronic actuator.
A device according to claim 10, further comprising a cutoff, third valve mounted in the supply pipe in series with the first and second valves.
Dependencies are inferred from the claim text.