Spark advance apparatus for controlling the ignition instant of

Details Spark advance apparatus for controlling the ignition instant of Spark advance apparatus for controlling the ignition instant of

1977-07-25

1979-07-31

Myhre, Charles J.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

123117R, F02P 506

Patent

active

041626664

ABSTRACT:
Spark advance apparatus for an internal combustion engine utilizes an electronic counter circuit to count pulses generated at a rate proportional to engine speed and also utilizes a device energized by the counter circuit to control the charging time of the ignition coil. The counter circuit includes a first counter that is active until a first count is reached. Thereafter, a second counter of the counter circuit counts a predetermined number of pulses occurring at a frequency relates to a particular engine parameter. The device to control charging of the coil is activated at the end of the count by the second counter.

REFERENCES:
patent: 3901201 (1975-08-01), Mizuguchz et al.
patent: 3923022 (1975-12-01), Scholl
patent: 3998193 (1976-12-01), Ives et al.
patent: 4051822 (1977-10-01), Yoshida

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