Electricity: measuring and testing – Internal-combustion engine ignition system or device – In situ testing of spark plug
Patent
1979-12-04
1981-12-15
Krawczewicz, Stanley T.
Electricity: measuring and testing
Internal-combustion engine ignition system or device
In situ testing of spark plug
324402, F02P 1700
Patent
active
043061877
ABSTRACT:
A self-contained device for mounting on a motor vehicle, having an internal combustion engine, by means of which the ignition voltages at the spark plugs can be visually monitored by selecting any one of a number of switch points on a manual switch, to connect to a voltage divider at each of the spark plug terminals, by means of which a reduced value of the voltage on the selected device, which will produce a light pulse in synchronism with the occurance of the electrical sparking pulse supplied to the spark plug. The brightness or intensity of the light pulses present, for each of the voltage pulses impressed on the gaseous conduction device, are indicators of the operation of the ignition system.
REFERENCES:
patent: 1976988 (1934-10-01), Grangier et al.
patent: 2762977 (1956-09-01), Krueger, Sr.
patent: 3205434 (1965-09-01), Fortune
patent: 3261008 (1966-07-01), Schreter et al.
patent: 3310733 (1967-03-01), Fortune
patent: 3806796 (1974-04-01), Goldstein
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