Breakerless magneto device

Details Breakerless magneto device Breakerless magneto device

1977-04-25

1978-10-17

Myhre, Charles J.

Internal-combustion engines

Igniters

Incandescent

123117R, 123148DS, 123149D, 123148E, 315209CD, F02P 100

Patent

active

041202775

ABSTRACT:
The embodiments of the breakerless magneto device disclosed herein have a rotor with a permanent magnet imbedded in the periphery thereof which acts in cooperation with the first and second magneto cores to generate a varying flux field in the cores. The first core has a first winding mounted thereon and the second core, which is mounted next adjacent the first core but insulated therefrom, has a second winding mounted thereon. The first winding therefore encompasses the first core, the second core, and the second winding. The second winding provides a trigger pulse to a solid state device which interrupts the current in the first winding, at or near its maximum value, thereby collapsing the flux field in the first core. This causes a high voltage to be induced in the secondary winding of the magneto coil which is applied to the spark gap for fuel ignition. Stable and proper spark timing is achieved with this device.

REFERENCES:
patent: 2924633 (1960-02-01), Sichline et al.
patent: 3229162 (1960-12-01), Louden
patent: 3311783 (1967-03-01), Gibbs et al.
patent: 3358665 (1967-12-01), Carmichael
patent: 3598098 (1969-05-01), Sohner
patent: 3667441 (1972-06-01), Cavil
patent: 3732483 (1973-05-01), Katsumata
patent: 3894524 (1975-07-01), Burkett et al.
patent: 3938491 (1976-02-01), Mazza
patent: 3948239 (1976-04-01), Katsumata
patent: 4056088 (1977-11-01), Carmichael

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