BELL HELICOPTER BELL 430 - ENGINE TORQUE MEASUREMENT; CHIP DETECTION; engine torquemeter;

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FROM YOUR BELL HELICOPTER TEXTRON REPRESENTATIVE.
PRODUCT DATA JANUARY 2003
ENGINE TORQUE MEASUREMENT
Engine lubricating oil is used by the engine torquemeter to provide power sensing for
instrument engine torque indication and total torque limiting. Each engines' torquemeter
is an oil filled chamber pressurized from the thrust generated by the torquemeter gear
shaft. A pressure transducer provides information to the
AIRINC 429 databus, which
is used by the IIDS to indicate engine torque on the respective scale of the triple torque
display, and in engine torque matching.
Each engines' oil is monitored in two places for
metal particles by electric/magnetic
detectors. The ENG SUMP plugs monitor the
accessory gearbox bearings, while the
ENG SCAV plugs monitor the
main bearings of the gas producer and power turbines.
The detectors interface with the CDPU and the IIDS for display and "FUZZ BURN" control,
as well as continuous circuit continuity testing.
CHIP DETECTION