Geared rotary actuator

Details Geared rotary actuator Geared rotary actuator

1989-01-25

1990-06-12

Diehl, Dwight

Planetary gear transmission systems or components

Planet periphery surrounds axis of interacting gear

Plural outputs

475221, 244 75R, F16H 132

Patent

active

049329294

ABSTRACT:
A geared rotary actuator comprises at least two axially aligned compound epicyclic gear trains driven by an input shaft so that output ring gears in each train rotate relatively. Sun gears in adjacent gear trains are drivingly coupled to the input shaft through a differential device which permits limited rotational displacement between the sun gears. An element, for example an aircraft lift control surface, may be mounted on one set of the ring gears by means of spindles which extend normally of a plane which includes the axes of the ring gears, so that as a result of stresses therein the element may tilt locally about the spindles.

REFERENCES:
patent: 2944444 (1960-07-01), Burns
patent: 3008355 (1961-11-01), Grudin
patent: 3640150 (1922-02-01), Leiner et al.
patent: 4721016 (1988-01-01), Barandt
patent: 4751855 (1988-06-01), Hudson
patent: 4779822 (1988-10-01), Burandt et al.
patent: 4825723 (1989-05-01), Martin

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