Patent application number | Description | Published |
20110308306 | DEVICE FOR MONITORING THE OBSTRUCTION OF AT LEAST TWO FILTERS OF A FLUID CIRCULATION SYSTEM OF AN AIRCRAFT GAS TURBINE ENGINE - A device for monitoring the obstruction of at least two fluid filters of a fluid circulation system of a gas turbine engine of an aircraft, the device comprising a first obstruction sensor, intended to monitor a first fluid filter, set up to send a first detection signal of an obstruction of the first filter and a processor comprising a monitoring input linked to said first sensor to measure the first detection signal. The device also comprises a second obstruction sensor, intended to monitor a second fluid filter, set up to send a second detection signal of an obstruction of the second filter, the monitoring input of the processor being connected to the first obstruction sensor to measure said second detection signal over a single monitoring input. | 12-22-2011 |
20120204532 | FUEL SUPPLY SYSTEM WITH MULTIPLE PUMPING MEANS - The invention proposes a system for supplying ( | 08-16-2012 |
20120260658 | FUEL FEED CIRCUIT FOR AN AEROENGINE - A fuel feed circuit for an aeroengine, the circuit including a high-pressure pumping system for delivering fuel at high pressure to combustion chamber injectors, the high-pressure pumping system including first and second positive displacement gear pumps driven simultaneously by the engine. A hydraulic switch member is interposed between respective outlets of the pumps, which makes it possible, in one state, to combine outlet flows from the two pumps to deliver fuel at high pressure to the combustion chamber injectors, and in another state, to discharge some or all of outlet flow from the first pump to a low-pressure feed line, an electrical control member serving to cause the hydraulic switch member to pass from one state to the other. | 10-18-2012 |
20130019952 | METHOD FOR MONITORING A PRESSURE RELIEF VALVE OF A FUEL INJECTION CIRCUIT FOR A TURBOMACHINE - 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. | 01-24-2013 |
20130073171 | METHOD AND DEVICE FOR DETECTION OF CONTAMINATION BY FUEL OF THE OIL CIRCUIT OF A TURBINE - A method for detection of contamination, by another fluid, of the oil circuit of a turbomachine fitted on an aircraft, the oil circuit including a tank provided with a device for measuring its oil level, piping which connects the tank to the various units of the turbomachine to be lubricated, and a device for putting the oil into circulation between the tank and the units, the turbomachine including a device for measuring its engine speed and a device for measuring the temperature of the oil at one point at least of the oil circuit. The oil level in the tank is monitored, an alert is triggered if the decrease in the oil level, measured over a given interval of time, becomes lower than a set minimum decrease. The decrease can be replaced by a simple increase in the oil level, without taking a duration of the monitoring into account. | 03-21-2013 |
20130115055 | SYSTEM FOR CONTROLLING A PNEUMATIC VALVE OF A TURBINE ENGINE | 05-09-2013 |
20130283811 | FUEL CIRCUIT FOR AN AVIATION TURBINE ENGINE, THE CIRCUIT HAVING A FUEL PRESSURE REGULATOR VALVE - A fuel circuit for an aviation turbine engine, the fuel circuit including: a main fuel line for feeding fuel to a combustion chamber of the engine and including a positive displacement pump; an auxiliary fuel line connected to the main fuel line at a junction situated downstream from the pump and serving to feed fuel to hydraulic actuators to control variable-geometry equipment of the engine, the auxiliary fuel line including electrohydraulic servo-valves upstream from each actuator; and a fuel pressure regulator valve arranged on the main fuel line downstream from the pump. | 10-31-2013 |
20140023525 | FUEL CIRCUIT COMPRISING MEANS FOR CONTROLLING A PUMP - A turbomachine fuel circuit including: a low pressure pump; a high pressure pump; a low pressure conduit connecting the low pressure pump to the high pressure pump; a high pressure conduit supplied by the high pressure pump, in which a component is arranged; a mechanism for testing operation of the component; a check valve capable of closing off a segment of the conduit when the pressure in the low pressure conduit is less than a predetermined threshold value; and the testing mechanism is capable of detecting that the check valve at least partly closes off the segment. | 01-23-2014 |