Apparatus and method for determining gas turbine engine life

摘要

An apparatus and method is provided for determining and recording the life and run values of a gas turbine engine. A starter drop out sensor and a turbine inlet temperature sensor delivers a respective drop out and turbine temperature signal. A receiving device receives the signals and advances the life recorder a predetermined amount based on a linear failure prediction curve for each completed turbine engine start in response to the turbine inlet temperature being greater than a set point value and the starter drop out signal being received. The receiving means also delivers a signal to enable advancement of the run recorder in response to the sensed turbine inlet temperature exceeding the set point value. A generating device delivers a signal to advance the life recorder an amount for the sensed turbine temperature based on a turbine life curve having turbine temperature to voltage coordinates.