An architecture of a propulsion system of a multi-engine helicopter is disclosed, comprising turboshaft engines that are connected to a power transmission gearbox. It comprises: a hybrid turboshaft engine that is capable of operating in at least one standby mode during a stable flight of the helicopter; a pack for quickly restarting said hybrid turboshaft engine in order to bring said engine out of said standby mode and to reach a nominal operating mode; an auxiliary power unit that is connected to said electrotechnical restart pack by means of a first AC/DC converter and is capable of providing said restart pack, on demand, with power required for bringing said hybrid turboshaft engine out of said standby mode.
ARCHITECTURE D'UN SYSTEME PROPULSIF D'UN HELICOPTERE MULTI-MOTEUR ET HELICOPTERE CORRESPONDANT
MULTI-ENGINED HELICOPTER ARCHITECTURE AND HELICOPTER
ARCHITEKTUR EINES MEHRMOTORIGEN HUBSCHRAUBERANTRIEBSSYSTEMS UND ZUGEHÖRIGER HUBSCHRAUBER
2018-11-07
Patent
Electronic Resource
French
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