ROTOR DOME, A ROTOR, AND A ROTORCRAFT

摘要

A dome for a rotor comprising a cap extending radially from an axis of rotation in elevation towards a periphery and in azimuth over 360 degrees, the cap extending in thickness from a bottom face towards a top face above the bottom face. The dome includes at least one slot extending between the periphery and the axis of rotation in elevation, each slot passing right through a thickness of the cap by extending in elevation from the bottom face to the top face.

主权项

1. A dome for a rotor of a rotorcraft, the dome comprising a cap extending radially from an axis of rotation in elevation towards a periphery and in azimuth over 360 degrees, the cap extending in thickness from a bottom face for facing a hub of the rotor towards a top face above the bottom face, the dome including notches enabling a blade to pass therethrough in order to allow the blade to flap;
wherein the dome includes at least one slot extending between the periphery and the axis of rotation in elevation, each slot being distinct from a notch, each slot passing right through a thickness of the cap by extending in elevation from the bottom face to the top face, the dome including in azimuth along at least one internal circle a succession of solid surfaces represented by the top face and of openings represented by each slot facing an incident air stream so that the incident air stream impacts in succession against a solid surface and an opening during rotation of the dome about the axis of rotation in elevation.