Internal-combustion engines – Igniters – Incandescent
Patent
1978-04-21
1980-05-06
Lazarus, Ronald H.
Internal-combustion engines
Igniters
Incandescent
123148DS, 123148E, F02P 1502
Patent
active
042011736
ABSTRACT:
An ignition apparatus for a multi-cylinder reciprocating internal combustion engine has a plurality of spark plugs arranged in each of the cylinders with each spark plug having a high voltage generating circuit. The ignition apparatus comprises an ignition signal generating circuit for generating a timing signal in accordance with the rotation of the engine, an actuation signal generating circuit responsive to the ignition signal to actuate the respective high voltage generating circuits to generate high voltages for causing the spark plugs connected to the respective high voltage generating circuits to generate sparks, and a disabling signal generating circuit for generating a disabling signal for disabling the sparking of a selected one of the plurality of spark plugs. The actuation signal generating circuit responds to an ignition signal to apply actuation signals to the corresponding high voltage generating circuits to actuate them to generate high voltages for effecting the sparking of the spark plugs. If a disabling signal is generated, at the time when the one of the high voltage generating circuits corresponding to the selected ignition plug is already supplied with an actuation signal, the actuation thereof is continued until it finishes the ignition and thereafter the application of an actuation signal to the selected high voltage generating circuit is inhibited as long as the disabling signal continues. If a disabling signal is generated at the time when the selected high voltage generating circuit is not actuated, the application of an actuation signal to the selected high voltage generating circuit is inhibited as long as the disabling signal continues.
REFERENCES:
patent: 3738340 (1973-06-01), Olson
patent: 3762383 (1973-10-01), Richards et al.
patent: 3809042 (1974-05-01), Hosho et al.
patent: 3828752 (1974-08-01), Hioki et al.
patent: 3935844 (1976-02-01), Nishimiya et al.
patent: 3964454 (1976-06-01), Nishimiya
Okada Tomoyuki
Sugiura Noboru
Dolinar Andrew M.
Hitachi , Ltd.
Lazarus Ronald H.
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