Helicopter gimbal rotor

Details Helicopter gimbal rotor Helicopter gimbal rotor

1984-09-27

1986-02-11

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Articulated, resiliently mounted or self-shifting impeller...

Nonmetallic resilient mounting

416140, B64C 2733

Patent

active

045696292

ABSTRACT:
Hub moment and driving torque is provided for a helicopter gimbal rotor by two-part flat springs that are in-plane with the rotor tilt point (P). The inboard end of an outward part of each spring is connected to the rotorshaft and the inboard end of an inward part of the spring is connected to the tiltable hub member. The outboard ends of the two spring parts are journaled together by an eccentric elastomeric joint that allows for spring foreshortening that accompanies rotor tilt.

REFERENCES:
patent: 2606621 (1952-08-01), Neale
patent: 2633925 (1953-04-01), Bates
patent: 2648387 (1953-08-01), Doman
patent: 2861641 (1958-11-01), Bensen
patent: 3288226 (1966-11-01), Lemont et al.
patent: 3412680 (1968-11-01), Girard
patent: 4111605 (1978-09-01), Roman et al.
patent: 4115031 (1978-09-01), Drees et al.
patent: 4323332 (1982-04-01), Fradenburgh
patent: 4326834 (1982-04-01), Ostrowski
patent: 4477225 (1984-10-01), Burkam

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