Rotary actuator with integrated actuation

US9759232B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9759232-B2
Application numberUS-201414192302-A
CountryUS
Kind codeB2
Filing dateFeb 27, 2014
Priority dateFeb 27, 2014
Publication dateSep 12, 2017
Grant dateSep 12, 2017

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A rotary actuator is provided. The rotary actuator includes a stator assembly centered along a longitudinal axis of the rotary actuator. The rotary actuator also includes a rotor assembly surrounding the stator assembly. The rotor assembly is rotatable about the longitudinal axis relative to the stator assembly. The rotary actuator also includes first and second bearing assemblies mounted at adjacent opposed axial ends of the stator assembly and connected between the stator assembly and rotor assembly to allow for the rotation of the rotor assembly about the longitudinal axis relative to the stator assembly. A hydraulic actuation arrangement is formed between the rotor assembly and the stator assembly. The hydraulic actuation arrangement includes at least one first pressure chamber and at least one second pressure chamber. At least one of the at least one first pressure chamber and the at least one second pressure chamber has a variable volume.

First claim

Opening claim text (preview).

What is claimed is: 1. A rotary actuator for actuating the variable stator vanes of a compressor section of a turbine engine, the rotary actuator comprising: a stator assembly centered along a longitudinal axis of the rotary actuator; a rotor assembly surrounding the stator assembly; the rotor assembly rotatable about the longitudinal axis relative to the stator assembly; first and second bearing assemblies mounted at adjacent opposed axial ends of the stator assembly and conn…

Assignees

Inventors

Classifications

  • F01D17/26Primary

    Mechanical Engineering · mapped topic

  • Mechanical Engineering · mapped topic

  • Mechanical Engineering · mapped topic

  • Mechanical Engineering · mapped topic

  • F04D29/563Primary

    Mechanical Engineering · mapped topic

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Frequently asked questions

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What does patent US9759232B2 cover?
A rotary actuator is provided. The rotary actuator includes a stator assembly centered along a longitudinal axis of the rotary actuator. The rotary actuator also includes a rotor assembly surrounding the stator assembly. The rotor assembly is rotatable about the longitudinal axis relative to the stator assembly. The rotary actuator also includes first and second bearing assemblies mounted at ad…
Who is the assignee on this patent?
Hoemke Brian E, Woodward Inc
What technology area does this patent fall under?
Primary CPC classification F01D17/26. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Sep 12 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).