Invention Grant
- Patent Title: Jam-tolerant rotary control motor for hydraulic actuator valve
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Application No.: US14038182Application Date: 2013-09-26
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Publication No.: US09783290B2Publication Date: 2017-10-10
- Inventor: Charles Eric Covington , Carlos A. Fenny
- Applicant: Bell Helicopter Textron Inc.
- Applicant Address: US TX Fort Worth
- Assignee: Bell Helicopter Textron Inc.
- Current Assignee: Bell Helicopter Textron Inc.
- Current Assignee Address: US TX Fort Worth
- Main IPC: B64C3/38
- IPC: B64C3/38 ; B64C27/64 ; H01F7/06 ; H01F7/122 ; B64C27/605 ; H02K7/00

Abstract:
According to one embodiment, a linear control motor includes a first permanent magnet, a coil, a shaft, a first non-magnetic material, and a joint coupled between the shaft and a spool operable to convert rotations of the shaft into axial movements of the spool. The first non-magnetic material is disposed between at least one of the movable components and at least one of the static components and operable to prevent physical contact between at least one of the movable components and at least one of the static components.
Public/Granted literature
- US20160340034A1 Jam-Tolerant Rotary Control Motor for Hydraulic Actuator Valve Public/Granted day:2016-11-24
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