Variable turbine nozzle and valve
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United States of America Patent
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Feb 25, 2014
Grant Date -
Oct 20, 2011
app pub date -
Apr 19, 2010
filing date -
Apr 19, 2010
priority date (Note) -
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Abstract
An air cycle machine includes a turbine wheel, a turbine inlet nozzle, a valve body, and a poppet member. The turbine wheel is mounted to rotate within the air cycle machine and the turbine inlet nozzle is positioned to direct airflow thereto. The poppet member selectively extends into the turbine inlet nozzle and the valve body controls a pressure on the poppet member to move the poppet member relative to the turbine inlet nozzle to vary the size of the turbine nozzle directing airflow to the turbine wheel.
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