A method detects a failure in a fuel return valve of an aircraft engine fuel circuit. A fuel system is connected to a fuel tank of the circuit and includes a high-pressure pump delivering a flow rate to an actuating cylinder, a cutoff valve capable of feeding the actuating cylinder disposed in a feed pipe of the engine; a fuel return pipe; a fuel return valve arranged to switch between an open position and a closed position. The method includes starting the engine at an engine speed; increasing the engine speed until a flow rate reaches a predefined value sufficient for opening the cutoff valve; measuring the position of the actuating cylinder and an engine speed corresponding to the opening of said cutoff valve.
Method for detecting a failure in a motive flow valve of an aircraft engine fuel circuit
2018-07-31
Patent
Electronic Resource
English
METHOD FOR DETECTING A FAILURE IN A FUEL RETURN VALVE OF AN AIRCRAFT ENGINE FUEL CIRCUIT
European Patent Office | 2016
|Method for detecting a failure in a fuel return valve of an aircraft engine fuel circuit
European Patent Office | 2018
|