PROPULSION SYSTEM FOR AIRCRAFT

To protect a gas-turbine engine against abrupt unloading or overloading on an engine shaft.SOLUTION: A propulsion system for aircraft comprises: a gas-turbine engine which is mounted on an aircraft; an electric generator which is coupled to an engine shaft of the gas-turbine engine, and utilizes rot...

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Bibliographic Details
Main Authors MATSUMOTO TAKESHI, KITA AKINORI
Format Patent
LanguageEnglish
Japanese
Published 22.09.2022
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Summary:To protect a gas-turbine engine against abrupt unloading or overloading on an engine shaft.SOLUTION: A propulsion system for aircraft comprises: a gas-turbine engine which is mounted on an aircraft; an electric generator which is coupled to an engine shaft of the gas-turbine engine, and utilizes rotations of the engine shaft to generate electric power; a storage battery which accumulates the electric power generated by the electric generator; an electric motor which utilizes at least one of the electric power output from the electric generator and the electric power output from the storage battery to drive a rotor: a detection part which detects the rotating speed of the engine shaft; an engine control part which controls at least a fuel flow rate of the gas-turbine engine; and an electric generator control part which controls the operation of the electric generator, wherein at least the electric generator control part performs control to reduce abrupt change in rotating speed when the rotating speed meets predetermined conditions.SELECTED DRAWING: Figure 2 【課題】エンジン軸に対する急な負荷抜け又は過負荷に対して、ガスタービンエンジンを保護する。【解決手段】航空機用推進システムは、航空機に搭載されるガスタービンエンジンと、ガスタービンエンジンのエンジン軸に結合され、エンジン軸の回転を利用して発電する発電機と、発電機によって発電された電力を蓄電する蓄電池と、発電機から出力された電力と蓄電池から出力された電力とのうちの少なくとも一方を利用してロータを駆動する電動機と、エンジン軸の回転数を検出する検出部と、ガスタービンエンジンの少なくとも燃料流量を制御するエンジン制御部と、発電機の動作を制御する発電機制御部とを備え、回転数が所定条件を満たす場合、少なくとも発電機制御部が、回転数の急変を低減するための制御を実行する。【選択図】図2
Bibliography:Application Number: JP20210036961