Invention Grant
US07882852B2 Direct drive servovalve device with redundant position sensing and methods for making the same
失效
具有冗余位置传感的直接驱动伺服阀装置及其制造方法
- Patent Title: Direct drive servovalve device with redundant position sensing and methods for making the same
- Patent Title (中): 具有冗余位置传感的直接驱动伺服阀装置及其制造方法
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Application No.: US10838568Application Date: 2004-05-04
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Publication No.: US07882852B2Publication Date: 2011-02-08
- Inventor: Kim Coakley , Russell Bessinger
- Applicant: Kim Coakley , Russell Bessinger
- Applicant Address: US CA Santa Clarita
- Assignee: Woodward HRT, Inc.
- Current Assignee: Woodward HRT, Inc.
- Current Assignee Address: US CA Santa Clarita
- Agency: BainwoodHuang
- Main IPC: F16K37/00
- IPC: F16K37/00

Abstract:
A direct drive servovalve device includes (i) a servovalve motor having a stator and a rotor assembly configured to rotate relative to the stator, (ii) a valve member coupled to the rotor assembly, and (iii) a sensor assembly. The sensor assembly includes an interface configured to couple to a controller that controls the servovalve motor, a set of programmable Hall sensors coupled to the interface, and a support. The support (e.g., a ring-shaped collar or sleeve) supports the set of Hall sensors at an installation location which is (i) adjacent to the rotor assembly and (ii) fixed relative to the stator. The set of programmable Hall sensors is configured to provide a set of position signals to the controller through the interface. The set of position signals identifies a rotational position of the rotor assembly relative to the stator.
Public/Granted literature
- US20050247350A1 Direct drive servovalve device with redundant position sensing and methods for making the same Public/Granted day:2005-11-10
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