Method and system for tuning a turbine using secondary injection nozzles in nozzle ring
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United States of America Patent
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Jul 12, 2016
Grant Date -
Aug 29, 2013
app pub date -
Feb 1, 2013
filing date -
Feb 24, 2012
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Abstract
A turbine and method of operating the same includes a housing having a volute and an outlet and an impeller rotatable coupled to the housing. The turbine includes a nozzle ring having a plurality of primary nozzles and a plurality of secondary nozzles. The plurality of primary nozzles and the plurality of secondary nozzles direct fluid toward the impeller. An auxiliary valve assembly selectively communicates fluid from the volute to the plurality of secondary nozzles. An actuator is coupled to the valve auxiliary assembly moving the auxiliary valve assembly from a first position communicating fluid from the volute into the secondary nozzles to a second position blocking flow of fluid to the secondary nozzles.
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