Ignition indicator for internal combustion engines

Details Ignition indicator for internal combustion engines Ignition indicator for internal combustion engines

1977-02-22

1978-05-16

Smith, Alfred E.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

315 57, 324 19, G01R 1342, G01R 2300

Patent

active

040901254

ABSTRACT:
In an ignition indicator system for internal combustion engines, a transformer is interposed in each line between the spark plug and distributor or other timing circuit. The transformer has a sensor element positioned adjacent thereto to be indirectly coupled to the transformer output circuit. Terminal means is provided for connecting the sensor element to detector means which permits analysis of the pulses for firing the spark plug. Preferably, the transformer and the high voltage portion of the ignition system is shielded by a grounded casing or sheath to minimize radiation of signals, as well as to confine any explosion of ignited gases within the casing or sheath. Access to the sensor element does not adversely affect the shielding effect of transformer casing.

REFERENCES:
patent: 2181149 (1939-11-01), Peters et al.
patent: 2245604 (1940-04-01), Peters et al.
patent: 3311783 (1967-03-01), Gibbs et al.
patent: 3369175 (1968-02-01), Morris

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