Abstract: A device for cooling an aircraft propulsion system, including at least one cooling circuit with at least one air inlet equipped with an intake flap mobile between closed and open positions and at least one air outlet equipped with an exhaust flap mobile between closed and open positions, and at least one actuator coupled by at least one kinematic system to the pair of intake and exhaust flaps in such a manner that the intake and exhaust flaps are driven in synchronized movements and simultaneously occupy the closed position or the open position. This solution enables reduction of the number of actuators and, finally, the all-up weight of the aircraft.

Abstract: A propulsion assembly having a combustion chamber and a fairing, an exhaust nozzle delimited by a nozzle wall, a dihydrogen tank, and a supply duct between the tank and the combustion chamber with a first portion between the tank and the nozzle wall, a second portion between the nozzle wall and the combustion chamber, and intermediate portions housed in the exhaust nozzle and wherein each intermediate portion has a first end, which is connected to the first portion through the nozzle wall, and a second end, which is connected to the second portion through the nozzle wall.

Abstract: A propulsion assembly having a fairing, a combustion chamber housed in the fairing, an exhaust nozzle delimited by a nozzle wall, a dihydrogen tank, a double-walled supply duct between the tank and the combustion chamber that has an inner wall delimiting an inner volume for the circulation of the dihydrogen and, around it, an outer wall delimiting an outer volume, and a bypass chamber, which is positioned around the nozzle wall and in which is made an upstream orifice for the introduction of the combustion gases and a downstream orifice for the discharge of the combustion gases, and wherein the supply duct has a portion arranged in the bypass chamber.

Abstract: A propulsion assembly having a propulsion system comprising a fairing, a rotary assembly having a combustion chamber and housed in the fairing, an exhaust nozzle positioned downstream of the combustion chamber and delimited by a nozzle wall, and ensuring the discharge of the combustion gases originating from the combustion of the dihydrogen in the combustion chamber, a dihydrogen tank, a supply duct which connects the tank and the combustion chamber, and at least one vane positioned inside the exhaust nozzle, wherein the supply duct has a duct portion arranged in the vane.

Abstract: A method for combined cooling and heating in an aircraft, the aircraft including an engine configured to use dihydrogen as fuel, the dihydrogen being stored in liquid form in a tank and being used in gas form in the engine, the dihydrogen being conveyed from the tank to the engine by a main pipe. The method includes the steps of branching off a part of the flow of dihydrogen in a bypass pipe, in parallel with a predefined segment of the main pipe, circulating a first heat transfer fluid in a first closed circuit, carrying out a first heat exchange between the first heat transfer fluid and the dihydrogen circulating in the bypass pipe and carrying out at least one secondary heat exchange. Each secondary heat exchange is carried out between the first heat transfer fluid and a working fluid used in the aircraft which needs to be cooled.

Abstract: A system for recovering gaseous dihydrogen produced in a distribution duct arranged between a main tank and a dihydrogen consumer device, the distribution duct comprising a pump. The system comprises: an auxiliary tank; a bypass duct, arranged between the distribution duct and the auxiliary tank, downstream of the pump; a valve arranged on the bypass duct; a module for obtaining a temperature of the dihydrogen in the distribution duct, upstream of the pump. A control module of the valve opens the valve when the temperature is greater than a predetermined value and closes the valve when the temperature is less than or equal to the predetermined value.

Abstract: A method for combined cooling and heating in an aircraft, the aircraft including an engine configured to use dihydrogen as fuel, the dihydrogen being stored in liquid form in a tank and being used in gas form in the engine, the dihydrogen being conveyed from the tank to the engine by a main pipe. The method includes the steps of branching off a part of the flow of dihydrogen in a bypass pipe, in parallel with a predefined segment of the main pipe, circulating a first heat transfer fluid in a first closed circuit, carrying out a first heat exchange between the first heat transfer fluid and the dihydrogen circulating in the bypass pipe and carrying out at least one secondary heat exchange. Each secondary heat exchange is carried out between the first heat transfer fluid and a working fluid used in the aircraft which needs to be cooled.

Abstract: A device for cooling an aircraft propulsion system, including at least one cooling circuit with at least one air inlet equipped with an intake flap mobile between closed and open positions and at least one air outlet equipped with an exhaust flap mobile between closed and open positions, and at least one actuator coupled by at least one kinematic system to the pair of intake and exhaust flaps in such a manner that the intake and exhaust flaps are driven in synchronized movements and simultaneously occupy the closed position or the open position. This solution enables reduction of the number of actuators and, finally, the all-up weight of the aircraft.