Rotary wing aircraft with a hybrid power plant

摘要

An aircraft (1) having at least one rotor (2) driven by a main gearbox (3), at least one fuel-burning engine (4), an on-board electricity network (7), and at least one electrical machine (10) corresponding to the engine (4) and capable of operating both in electric motor mode and also in electricity generator mode, each electrical machine (10) being mechanically connected to said main gearbox (3) by first connection means (20) and being electrically connected to said on-board electricity network (7). Second mechanical connection means (40) connect each electrical machine (10) mechanically to a gas generator (5) of an engine.

主权项

1. A rotary wing aircraft comprising:
at least one rotor driven in rotation by a main gearbox; at least one fuel-burning engine comprising a gas generator and a free turbine in order to drive the main gearbox; an on-board electricity network and with at least one electrical machine operating in electric motor mode and in electricity generator mode, each electrical machine being mechanically connected to the main gearbox via first connection means and electrically connected to the on-board electricity network, wherein the electrical machine is suitable for driving the main gearbox and for generating electricity energy, the aircraft is provided with second mechanical connection means for mechanically connecting each electrical machine to a gas generator, each first connection means comprising an upstream portion situated between a first mechanical member and an electrical machine, together with a downstream portion situated between the main gearbox and the first mechanical member, the first mechanical member being provided with two rotary parts and with constraining means to constrain said two rotary parts to rotate together in flight permanently except in the event of the electrical machine jamming, and for separating said two rotary parts from rotating together on the ground when the upstream portion rotates at an upstream speed of rotation (Vmr) faster than a downstream speed of rotation (Vbtp) of the downstream portion.