초록 ▼

An engine deficiency indicator includes a detector for detecting a pre-determined amount of angular rotation of an engine. The detector generates a first signal upon the start of one period of rotation of the engine which enables a counter for counting clock pulses. A second signal from the sensor,

An engine deficiency indicator includes a detector for detecting a pre-determined amount of angular rotation of an engine. The detector generates a first signal upon the start of one period of rotation of the engine which enables a counter for counting clock pulses. A second signal from the sensor, indicative of the completion of the pre-determined amount of angular rotation of the engine, disables the counter. A processing unit reads and stores the counter data in a memory. The counter data corresponds to the time required for the engine to rotate through a pre-determined amount of angular rotation. At the completion of a pre-determined number of engine rotational cycles, the processing unit analyzes the stored time sequence signals using a discrete Fourier transform analysis and/or an autocorrelation analysis to generate a manifestation of deficient engine operation. A display connected to the processing unit provides a visual or audible indication of efficient or deficient engine operation.

대표청구항 ▼

An apparatus for indicating deficient engine operation comprising: means for continuously detecting a pre-determined amount of angular rotation of a rotatable component of an engine; means, responsive to the detecting means, for continuously determining the time period of each pre-determined amount

An apparatus for indicating deficient engine operation comprising: means for continuously detecting a pre-determined amount of angular rotation of a rotatable component of an engine; means, responsive to the detecting means, for continuously determining the time period of each pre-determined amount of engine rotation; processing means, responsive to the determining means, for continuously generating a manifestation of engine efficiency and deficiency based on each time period; and display means, responsive to the processing means, for continuously indicating the efficiency or deficiency of engine operation.