Device for detecting premature ignition in an internal-combustio

Details Device for detecting premature ignition in an internal-combustio Device for detecting premature ignition in an internal-combustio

1979-03-01

1980-11-18

Lall, P. S.

Internal-combustion engines

Combustion chamber means combined with air-fuel mixture...

123435, 73 35, F02P 514, G01L 2322

Patent

active

042339430

ABSTRACT:
A pre-ignition detecting device for an internal-combustion is disclosed, which belongs to the general type of ionization-detectors, but employs no supplementary probe near the spark plug(s).
The device is electronic and comprises a circuitry in which a switching stage is capable of discriminating the signals indicating ionization at the electrodes in the cases in which the contact-breaker is open from those indicating ionization in the opposite case, that is, when pre-ignition occurs. Display devices can visualize the pre-ignition ripples and an operative stage could actuate, if so desired, the advance of ignition control in order to restore the engine to its normal run whenever necessary.

REFERENCES:
patent: 2141416 (1938-12-01), Serruys
patent: 2220558 (1940-11-01), Van Dijck et al.
patent: 2467732 (1949-04-01), Davis
patent: 2517976 (1950-08-01), Clarke
patent: 3286164 (1966-11-01), Huff

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