Yoke position sensor for a hydraulic device
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United States of America Patent
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Feb 10, 2015
Grant Date -
Jun 17, 2010
app pub date -
Sep 17, 2009
filing date -
Sep 17, 2008
priority date (Note) -
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Abstract
An embodiment the invention relates to a yoke position sensor system (7) for a hydraulic device (1), such as a pump or motor, provided with a moveable yoke (3) which is used for varying the displacement of the hydraulic device (1) and to a method for sensing the position of a yoke (3) relative to a housing (2). The housing (2) and the yoke (3) are movably and rotatably connected to each other. When the yoke (3) is rotated, there is a yoke angle sensor (5) indicating the degrees of rotation of the yoke and a yoke angle of zero corresponds to a zero displacement volume. The hydraulic device (1) includes a second yoke angle sensor (7) constructed to indicate when the yoke angle is within or outside an interval including the zero displacement angle.
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