Friction actuator

Details Friction actuator Friction actuator

1991-09-24

1993-02-02

Ro, Bentsu

Electricity: motive power systems

Positional servo systems

Vehicular guidance systems with single axis control

318628, 318 12, B64C 2782

Patent

active

051840545

ABSTRACT:
An actuator suitable for autopilot control of a helicopter tail rotor comprises a direct current motor, a non-reversible gearbox, a speed reducer driving an output shaft, a friction device disposed between the non-reversible gearbox and the speed reducer and a friction exceeded sensing device adapted to cut off the supply of power to the motor.

REFERENCES:
patent: 2471637 (1949-05-01), MacCallum
patent: 2699833 (1955-01-01), Jensen
patent: 2861576 (1958-11-01), Feucht et al.
patent: 3378217 (1968-04-01), Diani
patent: 3986090 (1976-10-01), Hecker et al.
patent: 4345195 (1982-08-01), Griffith et al.
patent: 4992713 (1991-02-01), McCollum et al.
patent: 5068584 (1991-11-01), Herent et al.

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