Eurocopter

Philippe Maurice Ren&eacute; Legendre

Etienne Jean Rampal

A rotorcraft, in particular helicopter, rotor includes a tubular pylon driven in rotation about its axis, which is the rotation axis of the rotor, from its foot. A hub is attached to the pylon by a flared base and includes two annular plates substantially radial to the rotor axis and spaced from each other along the rotor axis so that relative to the pylon one is an axially inside plate and the other is an axially outside plate. Each of at least two blades has its root connected to the hub by retaining and articulation arrangements retained between the plates of the hub and enabling relative angular movement of the blade at least in pitch about a longitudinal blade pitch change axis controlled by displacement by a pitch rod of a pitch lever attached to the blade root. The base has lateral openings through which pass arms of a pitch control plate which rotates with the hub and is mobile at least axially in the base, the end of each arm, outside the base, being articulated to one end of a pitch rod articulated at the other end to the pitch lever of a respective rotor blade.

Growing community of inventors

Grans, France

Philippe Maurice René Legendre

Growing community of inventors

Grans, France

Philippe Maurice Ren&eacute; Legendre

Philippe Maurice René Legendre