DETECTION OF THE OVERSPEED OF A FREE TURBINE BY MEASURING USING A TORQUE METER
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United States of America Patent
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Issued Date -
Apr 25, 2013
app pub date -
Jul 1, 2011
filing date -
Jul 2, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An overspeed protection device includes at least one torque measurement unit supported by an output shaft coupled mechanically to a free turbine of a turbine engine and a signal processing unit able to transmit to a turbine engine regulating system a command to reduce a flow of fuel injected if it is detected that the torque has dropped below a first datum value. The signal processing unit is shaped to command a reduction of the flow if it is detected that the torque has dropped below a first datum value, the torque measurement used to trigger the reduction being taken during a rotation corresponding to a fraction of a revolution of the output shaft.
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