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AssigneeEldec Corporation
InventorsJoseph Codomo, Eric K. Thorson
Estimating the term…
The required frequency of inspection, servicing and overhauling of jet engines is to a large extent determined by the history of excessive or over-temperature conditions of each engine. In order to monitor and record each such over-temperature condition, an indicator device is provided having electronic circuitry for processing a temperature signal from the jet engine and a light emitting diode matrix for graphically displaying each over-temperature incident. When the jet engine temperature exceeds a threshold over-temperature point, this occurrence is sensed and the circuitry of the indicator functions to automatically store and visually display the engine temperature as a function of time for the succeeding several seconds after the over-temperature condition has commenced. All the diodes of the matrix lying under the temperature versus time profile are energized so as to present a histogram display of the severity of the condition, where the severity is a function of the duration and magnitude of the over-temperature. In one embodiment disclosed herein, a plurality of over-temperature events are automatically sensed, graphically displayed and stored for later retrieval, such that the maintenance crew may subsequently interrogate the indicator device causing it to sequentially display each recorded or electronically stored over-temperature event.
Apparatus for receiving an electrical signal representing a temperature condition of a jet engine and sensing, storing, and displaying an over-temperature event incurred by such engine, comprising:
An instrument adapted to be mounted on the instrument panel of a jet engine aircraft for receiving an electrical signal representing a temperature condition of one or more of the aircraft jet engines and, in response thereto, sensing, storing, and displaying an over-temperature event incurred by such jet engine, comprising:
Method for sensing, storing, and displaying an over-temperature event incurred by an aircraft jet engine, comprising the steps of:
Dependencies are inferred from the claim text.