METHOD FOR MONITORING THE OCCURRENCE OF FIRE IN AN ENGINE

    公开(公告)号:US20250025724A1

    公开(公告)日:2025-01-23

    申请号:US18775921

    申请日:2024-07-17

    Inventor: Antoine PILON

    Abstract: A method for monitoring an engine of an aircraft supplied with dihydrogen, comprising a safety device including a safety valve that is movable between an open position in which the engine is supplied with dihydrogen and a closed position in which the engine is no longer supplied with dihydrogen, an engine fire detection system, a dihydrogen leak detection system and an engine damage detection system, and comprising electronic circuitry adapted to implement the monitoring method. If a locking authorization is given and if one out of three conditions A, B and C is true, then the safety device closes the safety valve, with: the condition A is true if an engine fire detection system detects a fire, the condition B is true if a dihydrogen leak detection system detects a dihydrogen leak, and the condition C is true if an engine damage detection system detects engine damage.

    Nacelle of an aircraft engine, comprising an improved heat exchanger

    公开(公告)号:US12188362B2

    公开(公告)日:2025-01-07

    申请号:US18457134

    申请日:2023-08-28

    Inventor: Christian Flemin

    Abstract: An aircraft engine nacelle in which the inner fixed structure has a heat exchanger which is filled with a two-phase heat transfer fluid and which comprises a tube forming a loop with front, rear, lower and upper strands, and also a first complementary strand between the central zones of the front strand and of the upper strand, a second complementary strand between the central zones of the front strand and of the lower strand, a third complementary strand between the central zones of the rear strand and of the upper strand, and a fourth complementary strand between the central zones of the rear strand and of the lower strand.

    Method and system for an ultrasonic detection of internal defects of a component, in particular for an aircraft

    公开(公告)号:US12140569B2

    公开(公告)日:2024-11-12

    申请号:US17824097

    申请日:2022-05-25

    Abstract: The system includes an ultrasonic measuring device including ultrasonic transmitters and ultrasonic receivers, the ultrasonic measuring device carrying out ultrasonic measurements on a zone of interest of the component divided according to a gridding including cells, and carrying out the measurements cell after cell with the generation, by all the ultrasonic transmitters, of an ultrasonic signal that is sent into the component, and the measurement, by all the ultrasonic receivers, of the amplitude of the ultrasonic signal reflected by the cell in question of the component, a unit for computing, for all of the cells of the gridding, the sum of the amplitudes of all the measurements carried out for that cell, and a processing part for deducing the presence or absence of one or more defects. The system detects all the defects existing in the zone of interest of the component, whatever their orientation may be.

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