Internal-combustion engines – Intake manifold – Manifold tuning – balancing or pressure regulating means
Patent
1974-08-27
1976-05-25
Myhre, Charles J.
Internal-combustion engines
Intake manifold
Manifold tuning, balancing or pressure regulating means
1231465A, 123148E, 200 31CA, F02P 504
Patent
active
039585433
ABSTRACT:
There is provided an ignition system in which a light path is arranged so that the light output of a light emitting element is received by a photoelectric element, and this light path is made and broken intermittently to generate ignition signals. A plurality of weights or rockers are provided to intercept the passage of light in the light path. The weights are moved outward and inward by the centrifugal force which varies in accordance with the engine speed, and in this way the time interval during which the light is intercepted is varied. The duration of the light intercepting period is varied so that the dwell angle is increased as the engine speed increases. Consequently, even at the high engine speeds, the primary current in the ignition coil is not easily decreased thus preventing the decrease in the secondary voltage, and moreover the function of a centrifugal spark advance mechanism can be concurrently performed.
REFERENCES:
patent: 3646922 (1972-03-01), Spalding
patent: 3710131 (1973-01-01), Ford
patent: 3751610 (1973-08-01), Bednarz
patent: 3792261 (1974-02-01), Canup et al.
patent: 3807378 (1974-04-01), Wernet, Jr.
patent: 3810448 (1974-05-01), Ford
Devinsky Paul
Myhre Charles J.
Toyota Jidosha Kogyo Kabushiki Kaisha
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