Improvement to rotorcrafts equipped with turbine engines

B - Operations – Transporting – 64 – C

Patent

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Details

B64C 27/12 (2006.01)

Patent

CA 2641962

The invention relates to a rotorcraft (10) having a main rotor (11), a turbine engine (13), and a transmission mechanism (MGB) coupled to the rotor and to the engine to enable the engine to drive the rotor. The engine has a free turbine (132) connected to the transmission mechanism (MGB) by a shaft (15, 15a, 15b, 16, 18). The rotorcraft includes an external compressor (19) arranged to be driven by the free turbine (132) or by an electric motor, together with an air-transport duct (21) connecting the external compressor (19) to the engine so as to deliver the air that has been compressed by the external compressor to the inlets (22) of the engine.

L'invention concerne un giravion (10) comportant un rotor principal (11), un turbomoteur (13), et un mécanisme (BTP) de transmission couplé au rotor et au turbomoteur pour permettre l'entrainement du rotor par le turbomoteur. Le turbomoteur comporte une turbine libre (132) reliée au mécanisme de transmission (BTP) par un arbre (15, 15a, 15b, 16, 18). Le giravion comporte un compresseur externe (19) agencé pour être entrainé par la turbine libre (132) ou par un moteur électrique, ainsi qu'un conduit (21) de transport d'air reliant le compresseur externe (19) au turbomoteur pour délivrer en entrée (22) du turbomoteur de l'air comprimé par le compresseur externe.

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