Faulty combustion device for controlled ignition internal combus

Measuring and testing – Test stand – For engine

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G01M 1500

Patent

active

040032485

ABSTRACT:
An apparatus and method for detecting faulty combustion in an internal combustion engine. The series combination of a voltage source and a resistor are connected across the electrodes of a spark plug and the magnitude and shape of the voltage waveform across the resistor is indicative of whether or not a spark has occurred and whether or not combustion has occurred. An electronic processing circuit is provided for actuating an alarm or affecting the operations of some part of the engine or automobile when it is determined either that a spark has not occurred at the proper time or that a predetermined minimum number of consecutive sparks has occurred without the occurrence of combustion.

REFERENCES:
patent: 3286164 (1966-11-01), Huff
patent: 3289462 (1966-12-01), Wostl

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