Internal-combustion engines – Intake manifold – Manifold tuning – balancing or pressure regulating means
Patent
1975-06-19
1979-02-13
Myhre, Charles J.
Internal-combustion engines
Intake manifold
Manifold tuning, balancing or pressure regulating means
123148E, F02P 504
Patent
active
041389760
ABSTRACT:
An ignition system for an internal combustion engine comprises a distributor containing a pair of magnetic pick-up devices each of which generates signals at a frequency representative of engine speed. One pick-up is used normally during starting of the engine to fire the engine spark plugs, and the other pick-up during running. An automatic transfer circuit is provided to transfer control from the first, or start, pick-up to the second, or run, pick-up when the engine begins to run under its own power and accelerate from cranking speed. Should a condition occur indicative of a lack of signals from the run pick-up above a predetermined minimum frequency, the transfer circuit transfers control of ignition firing back to the start pick-up.
REFERENCES:
patent: 2677946 (1954-05-01), Purdy
patent: 3464397 (1969-09-01), Burson
patent: 3570460 (1971-03-01), Rabos
patent: 3699932 (1972-10-01), Aono et al.
patent: 3800757 (1974-04-01), Finch
patent: 3867916 (1975-02-01), Bigalke
patent: 3874349 (1975-04-01), Fitzner
patent: 3880133 (1975-04-01), Katsumata
patent: 3910243 (1975-10-01), Bou et al.
Chrysler Corporation
Myhre Charles J.
Nell R. A.
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