초록 ▼

A comprehensive turbine engine monitoring and recording system includes an electronics unit which may be engine mounted, and which contains at least a nonvolatile memory and a data-processor, for use with a remote unit suitable for either cockpit mounting or for accessing by a ground portable unit w

A comprehensive turbine engine monitoring and recording system includes an electronics unit which may be engine mounted, and which contains at least a nonvolatile memory and a data-processor, for use with a remote unit suitable for either cockpit mounting or for accessing by a ground portable unit which may include an additional data-processor and display and/or printer units. Raw input data is supplied to the electronics unit, and this input information may include engine and outside air temperature, torque, engine speed, vibration, altitude and airspeed data, for examples. Exceedance data relative to the operation of the aircraft above pre-defined limits of temperature, torque and speed are recorded, with the details of each exceedance being permanently stored. In addition, over-limits levels are segregated and the total time during which the engine is operated within each of the over-limits bands is measured, and is recorded in a non-volatile, electronically alterable memory which is periodically updated during operation of the aircraft. The number of starts, and power cycles are also counted and stored, and the total running time of the engine is also recorded. Upon command from the remote unit, information is transferred from the non-volatile memory to any of a number of remote data storage, or data processing units, which may include printer and/or display units, so that the time at which the turbine has been operated at specific over-temperature levels, and other important operating data may be readily accessed. Data required for engine trend monitoring is also automatically recorded so that long term plots and interpretation of engine degradation may be accomplished.

대표청구항 ▼

A comprehensive aircraft turbine engine monitoring and recording system whereby said turbine engine has predetermined maximum normal operating parameters, said system comprising: means for sensing the speed of rotation of said turbine engine; means for sensing temperature of said turbine engine; mea

A comprehensive aircraft turbine engine monitoring and recording system whereby said turbine engine has predetermined maximum normal operating parameters, said system comprising: means for sensing the speed of rotation of said turbine engine; means for sensing temperature of said turbine engine; means for sensing altitude; means for determining exceedances indicating operation of said turbine engine over the normal operating temperature and/or speed of said engine; means for determining the air speed of said aircraft; non-volatile storage means for permanently storing data giving the duration and magnitude of each said exceedance, and the total duration of the exceedances; means for recording and processing data required for turbine engine trend monitoring, including means for calculating horsepower and the air density index factor, and the resultant optimum fuel flow rate, engine speed and engine temperature under these horsepower and air density conditions; means for determining the actual fuel flow rate, engine speed and engine temperature; means for determining the variances from the optimum for the fuel flow rate, the engine speed and the engine temperature; means for numerically displaying selected data from said system; means for mounting said numerical display means in the cockpit of the aircraft; and switching means in the cockpit for actuation by the pilot for selecting any of at least ten desired sensed or calculated information or data, to be displayed, including altitude and airspeed; whereby said display provides a backup source of instrumentation for the pilot of the aircraft, and whereby an evaluation of the engine degradation trend may be made for purposes of power assurance, engine overhaul scheduling, or the like.