William P Reilly

US Patent:

57795878, Jul 14, 1998

Filed:

Aug 30, 1996

Appl. No.:

8/705955

Inventors:

William Reilly - Verona NJ

Assignee:

Curtiss Wright Flight Systems, Inc. - Fairfield NJ

International Classification:

F16H 374
F16H 344
F16D 900

US Classification:

475263

Abstract:

A jam-tolerant geared rotary actuator, capable of performing in a normal operating mode and a jam-tolerant operating mode, which includes: an output spline member for releasably connecting the movable ring gear to the output ring; a decoupling member which includes an input shaft disposed within a hollow timing shaft, and a shear member for sensing excessive torque and initiating the jam-tolerant mode; a sun gear spline member for connecting the sun gear to the hollow timing shaft; an axial displacement member for engaging the output spline member with the movable ring gear and the output ring; and an input engagement member for releasably connecting the axial displacement member to the input shaft. The axial displacement member includes a decoupling bushing and a double threaded decoupling nut. The nut is disposed between the timing shaft and the decoupling bushing.