Patent ID: 6022191
Filing Date: 2000-02-08
Classification: F04D

Abstract:
A fan comprising:a rotatable hub;a hub strut coupled to and extending generally radially from the hub;a tube end connected to the outer end of the hub strut;a pair of resilient mounts, each mount comprising:an inner rigid core,an outer rigid sleeve coaxial with the core, anda layer of resilient elastomer between the core and sleeve for limited circumferential motion;means for positively clamping the cores of the resilient mounts to the tube end, wherein the inner core of each of the resilient mounts comprises a surface that when clamped against a pair of complementary mating surfaces on the tube end positively prevents rotation of the inner core both about its own axis and about the fan axis independently of friction between the mating surfaces;a blade root member coupled to the sleeves of the resilient mounts; andan airfoil blade coupled to the blade root member.