Abstract: Leaks in an oil lubrication circuit, in particular through a heat exchanger communicating with another circuit, are measured by the movements of a piston that is sensitive to variations in flow rates and pressure drops at two calibrated ports on either side of the predicted location of the leak. In one intended application, the second circuit contains overpressurised fuel which is used to constantly cool the oil.

Abstract: A turbine engine includes an oil supply system that has a main oil tank, a supply pump with an inlet and an outlet connected to a control system, an auxiliary oil tank, and a valve having a first inlet connected to the main tank, a second inlet connected to the auxiliary tank and an outlet connected to the inlet of the supply pump. The valve also has a member configured to move within the body and between a first position, in which the first inlet of the valve is in fluid communication with the outlet of the valve, and a second position, in which the second inlet of the valve is in fluid communication with the outlet of the valve.

Abstract: Leaks in an oil lubrication circuit, in particular through a heat exchanger communicating with another circuit, are measured by the movements of a piston that is sensitive to variations in flow rates and pressure drops at two calibrated ports on either side of the predicted location of the leak. In one intended application, the second circuit contains overpressurised fuel which is used to constantly cool the oil.

Abstract: A method for generating an alarm is implemented by an alarm-generating device installed in an aircraft. It comprises: a step of obtaining information delivered by a sensor of said device and representative of an oil flow rate inside an oil filter of the aircraft; a step of obtaining a temperature delivered by a sensor of said device and representative of a temperature of the oil inside said filter; a step of obtaining a differential pressure at said filter; and a step of generating an alarm if the differential pressure exceeds an alarm threshold obtained on the basis of said information and of said temperature.

Abstract: A method for generating an alarm is implemented by an alarm-generating device installed in an aircraft. It comprises: a step of obtaining information delivered by a sensor of said device and representative of an oil flow rate inside an oil filter of the aircraft; a step of obtaining a temperature delivered by a sensor of said device and representative of a temperature of the oil inside said filter; a step of obtaining a differential pressure at said filter; and a step of generating an alarm if the differential pressure exceeds an alarm threshold obtained on the basis of said information and of said temperature.