Bearing for aircraft engine rotor blade - incorporates torsional tie rod in compact design

摘要

Bearing system for a swivel rotor blade fitted out with a holding journal which thrusts off the rotor disc via a swivel bearing. Centrifugal force is taken up by an inwards, easy-twisting tie rod whose free end is only secured on a radially inward part of the rotor disc (7, 2). The swivel bearing should be a radial bearing (6a, b) pref. composed of one or more needle bearings. The tie rod consists of a slit tube or fibre strand bundle or hollow rod. USE/ADVANTAGE - Aircraft engines, fan blades. Blade adjusting moment passed directly into journal, protected from centrifugal forces by torsional tie rod in compact design.