Patent ID: 8985953
Filing Date: 2015-03-24
Classification: B64C,B64D

Abstract:
1. A rotor comprising a hub and a plurality of blades supported by the hub, the rotor including a mast secured to the hub to drive the hub and the blades in rotation about an axis of rotation (AX), the rotor having protection means for providing protection against lightning, wherein the protection means comprise rotary electric current conduction means constrained to rotate with the mast and connected to each blade via a first electrical connection member, the protection means having non-rotary electric current conduction means facing the rotary conduction means, and the non-rotary conduction means not being constrained to rotate with the mast, the protection means including electrical connection trigger means arranged on at least one of the conduction means in a space separating the non-rotary conduction means from the rotary conduction means, the non-rotary conduction means being provided with a second electrical connection member suitable for being electrically connected to a target member external to the rotor; and wherein the rotor includes means for modifying the pitch of the blades, the means comprising an assembly of a non-rotary swashplate that is not constrained to rotate with the mast and a rotary swashplate that is constrained to rotate with the mast, the rotary swashplate being connected to each blade via a respective pitch rod, the rotary conduction means being fastened to the rotary swashplate and the non-rotary conduction means being fastened to the non-rotary swashplate, wherein a first electrically insulating spacer is provided between the rotary conduction means and the rotary swashplate, and with a second electrically insulating spacer between the non-rotary conduction means and the non-rotary swashplate.