Linkage to actuate inlet guide vanes
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United States of America Patent
Stats
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Feb 27, 2018
Grant Date -
May 5, 2016
app pub date -
Nov 2, 2015
filing date -
Oct 31, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
An actuation linkage assembly may include a first lever arm connected to one end of a shaft, a second lever arm connected at one end to another end of the shaft, a transition linkage connected to the other end of the second lever arm, and a bracket connected to the transition linkage. The transition linkage is configured to connect the bracket on a driver ring and to the shaft to transfer rotational motion about the axis of the shaft, from a linear motion received by an actuator, to a linear motion through the bracket causing rotational motion of the driver ring. The actuation linkage assembly is configured with high mechanical advantage. The actuation linkage assembly can be part of a movable inter-stage vane guide assembly in a compressor such as for example a centrifugal compressor, which may be part of a chiller such as in a HVAC system.
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