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AssigneeSafran Helicopter Engines
InventorsLucie Stéphanie APOSTIN, Loïs Pierre Denis VIVE, Christian Omer Henri SARRAT
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A hybrid turboprop for an aircraft, including a gas generator carried by a generator shaft, a free turbine carried by a turbine shaft and driven in rotation by a gas stream generated by the gas generator, the turbine shaft being engaged with a main rotor via a transmission unit including a first free wheel oriented such that the main rotor cannot drive the free turbine, a reversible electric machine engaged with the main rotor via the transmission unit to drive the main rotor during electric or hybrid operation, the turboprop including a single oil pump engaged with the transmission unit so as to be selectively driven by the turbine shaft or by the electric machine depending on the operating mode.
A hybrid turboprop for an aircraft, comprising a gas generator carried by a generator shaft, a free turbine carried by a turbine shaft and driven in rotation by a gas stream generated by the gas generator, the turbine shaft being engaged with a main rotor via a transmission unit comprising a first free wheel oriented such that the main rotor cannot drive the free turbine, a reversible electric machine able to be engaged with the main rotor via the transmission unit to drive the main rotor-during an electric or hybrid operating mode, the turboprop comprising a single oil pump engaged with the transmission unit so as to be selectively driven by the turbine shaft or by the electric machine depending on the operating mode of the turboprop.
Dependencies are inferred from the claim text.