| 摘要 |
The invention concerns a method for detecting a failure in a fuel return valve of an aircraft engine fuel circuit, the fuel circuit comprising a fuel tank; an engine fuel system connected to the fuel tank, said engine fuel system being capable of delivering a flow of fuel to the engine depending on a speed of said engine; a fuel return pipe connected between the engine fuel system and the fuel tank; a fuel return valve arranged to switch between an open position and a closed position, said valve being capable of blocking the fuel return pipe, when in the closed position, and of bringing the fuel return pipe into communication with the fuel tank, when in the open position; the method comprising the following steps implemented in a computer: measuring a pressure of the flow of fuel from the fuel tank; and if the measured pressure is lower than a predefined threshold, measuring the engine speed. |
