BELL HELICOPTER BELL 430 - POWER TURBINE (NP); TEMPERATURE SENSING; POWER TURBINE; thermocouple assembly

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FROM YOUR BELL HELICOPTER TEXTRON REPRESENTATIVE.
PRODUCT DATA JANUARY 2003
POWER TURBINE (NP)
The final two turbine stages extract energy from the combustion gases to drive the
power turbine. At 100 % RPM the power turbine rotates at 30,908 RPM.
The power turbine support incorporates a thermocouple assembly, which senses the
temperature of the combustion gases as they exit the second stage gas producer rotor.
Four ALUMEL-CHROMEL probes generate a DC current directly proportional to the
temperature of the gas. The thermocouple harness averages the four voltages and
transmits the resulting signal to the ARINC-429 databus and IIDS.
TEMPERATURE SENSING
MGT HARNESS