Rotary hydraulic machine and controls
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United States of America Patent
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Aug 25, 2015
Grant Date -
Nov 10, 2011
app pub date -
Jul 19, 2011
filing date -
Feb 11, 2004
priority date (Note) -
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Abstract
A variable capacity hydraulic machine has a rotating group located within a casing and a control housing secured to the casing to extend across and seal an opening in the casing. The control housing accommodates a control circuit and a pair of sensors to sense change in parameters associated with the rotating group. One of the sensors is positioned adjacent the barrel on the rotating group to sense rotational speed and the other senses displacement of the swashplate. The control housing accommodates a control valve and accumulator to supply fluid to the control valve.
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