Woodward, Inc.

Craig D Mawle

Barry T Brinks

Mark Allen Spickard

Kevin E Greeb

Pawel A Sobolewski

Tena K Britt

Kris M Rustman

Thomas M Krause

Kevin Greeb

The subject matter of this specification can be embodied in, among other things, a linear-to-rotary apparatus that includes a linear actuator having an actuator housing including a piston chamber, a piston shaft disposed in the piston chamber, and a rotor apparatus. The rotor apparatus includes a rotary joint defining a rotational axis, a rotor arm extending radially from the rotary joint and configured to at least partially pivot about the rotary joint, and a torque linkage pivotably connected to the rotor arm. The torque linkage is also attached to an end of the piston shaft of the piston at a pivot connection joint, where the pivot connection joint defines a pivot axis that is substantially perpendicular to the translation axis of the piston shaft.

Compact linear to rotary actuator

The subject matter of this specification can be embodied in, among other things, a rotary actuator that includes a first rotary actuator assembly having a first housing, a first mounting assembly radially projecting from a first longitudinal end of the first housing and defining a first axial aperture, and a first output shaft extending into the first axial aperture, a second rotary actuator assembly having a second housing, a second mounting assembly radially projecting from a second longitudinal end of the second housing and defining a second axial aperture, and a second output shaft extending into the second axial aperture, and a bearing assembly having an outer surface in contact with at least one of the first mounting assembly and the second mounting assembly, and an inner surface in contact with at least one of the first rotor assembly and the second rotor assembly.

Rotary piston type actuator with a central actuation assembly

Providing wear-related prognostics and diagnostics on a turbine engine includes, while operating a turbine control device, tracking a total device travel distance over time by recurrently: selectively identifying actual device movement based on device position data associated with a displacement sensor monitoring the turbine control device; and accumulating an incremental device travel distance corresponding to the identified actual device movement with the total device travel distance.

Turbine control device prognostics

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Fort Collins, CO, United States of America

Craig D Mawle