Snecma

Safran Aircraft Engines

Brice Andre

Nicolas Potel

Bruno Robert Gaully

Sebastien Gameiro

Sébastien Gameiro

Guillaume Mathon Margueritte

Virginie Ayrault

A method for regulating oil cooling within an oil cooling device of a turbomachine including a first heat exchanger mounted in series with a second heat exchanger, the first heat exchanger being an oil/air exchanger while the second heat exchanger is an oil/fuel exchanger, each heat exchanger having an oil inlet and an oil outlet, a bypass directly connecting the oil inlet of the first heat exchanger to the oil outlet of the first heat exchanger, and a flow regulator to regulate the flow rate of oil flowing through the bypass. Circulation of oil though the bypass is allowed by means of the flow regulator when the oil temperature is less than or equal to a predetermined temperature comprised between 70&#xb0; C. and 90&#xb0; C., preferably equal to about 80&#xb0; C.

Method and device for regulating the cooling of oil in a turbomachine

The invention relates to a method for monitoring the operation of a fuel circuit shut-off valve comprising an LPSOV, a flow regulator, the shut-off valve,

Method for monitoring a fuel circuit shut-off valve

A detection method of a breakdown of a pressure relief valve of a fuel injection circuit for a turbomachine, the injection circuit including a low pressure stage and a high pressure stage, the low pressure stage having an inlet and an outlet, the high pressure stage having an inlet and an outlet, the low pressure stage being connected to the high pressure stage, the pressure relief valve being connected in parallel with respect to the high pressure stage, the injection circuit further including a recirculation loop including an inlet connected to the outlet of the high pressure stage and an outlet connected to the outlet of the low pressure stage, the method including measuring a differential pressure in the injection circuit.

Method for monitoring a pressure relief valve of a fuel injection circuit for a turbomachine

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Montgeron, France

Brice Andre