ONBOARD MONITORING SYSTEM OF AIRCRAFT ENGINE AT LIMITED TEMPERATURE, FUEL PARAMETERS AND THRUST Russian patent published in 2005 - IPC

FIELD: aircraft instrumentation engineering; monitoring of gas-turbine engines.

SUBSTANCE: proposed onboard monitoring system makes it possible to check aircraft engine working in standard, off-standard and augmented power rating modes. Monitoring is based on use of information received from sensors of aircraft engine parameters and transmitted to inputs of multiplexing unit and from output of this unit to onboard computer. Information received from sensors of very important parameters of aircraft engine is fed directly to command unit input. Measured present parameters of aircraft engine are compared in onboard computer and in command unit with dangerous and limiting magnitudes on basis of computational algorithms and information received from sensors, viz.: turbine exhaust gas temperature, consumption and pressure of fuel and thrust. In case these magnitudes are beyond limiting and dangerous magnitudes, limiting and dangerous commands are formed and are transmitted to onboard computer and to emergency information system of aircraft for recording and warning the crew. Magnitudes of actual operating hours and remaining service life of aircraft engine are determined in onboard computer with the received commands taken into account and are transmitted to onboard information system for indication and recording.

EFFECT: enhanced efficiency of monitoring of aircraft engine working at augmented power rating and increased thrust.

2 dwg