Leonardo S.p.a.

Politecnico Di Milano

Alessandro Airoldi

Sergio Sartori

Fabrizio Losi

Matteo Boiocchi

Roberto Simonetta

Alessandro Nava

Luigi Maria Bottasso

Stefano Poggi

Phil Woody

Janszen Gerardus

Carlo Bergamelli

Massimiliano Sanvito

Luigi Bottasso

A rotor for an aircraft is described, comprising an input shaft rotatable around a first axis; an output member rotatable around a second axis; a coupling element functionally interposed between the input shaft and the output member and adapted to transmit the motion from the input shaft to the output member; the coupling element is configured to allow, in use, a fixed or variable inclination between the respective first and second axes; the coupling element comprises at least a first corrugated element made of an elastically deformable material; the first corrugated element allows the inclination through elastic deformation.

Rotor for an aircraft capable of hovering

A helicopter is described comprising a motor member comprising an output shaft and a first stator rotatably supporting the output shaft around a first axis; a main rotor adapted to provide the lift necessary for the support and the thrust necessary for the movement of the helicopter; a transmission interposed between the motor member and the main rotor; the transmission rotatable around a second axis and a second stator rotatably supporting the input shaft around the second axis; the helicopter also comprises a joint interposed between the first and second stator, angularly fixed with respect to the first axis, and configured to allow an inclination between the first and second stator in a plane parallel to said first axis; the joint comprises a first corrugated element made of an elastically deformable material, interposed between said first and second stator, and adapted to allow the inclination through elastic deformation.

Helicopter

A system for absorbing energy to attenuate a force caused by an impact includes: an elongated tubular element; a fixed ring having a plurality of wedge-shaped flanges associated with the elongated tubular element; and a mobile element associated with the fixed ring. In response to movement toward the wedge-shaped flanges, the mobile element interacts with the wedge-shaped flanges, which in turn interact with the elongated tubular element so as to trigger collapse of the elongated tubular element.

Triggering system for the plastic collapse of a metal structural element

Growing community of inventors

Samarate, Italy

Alessandro Airoldi