Ignition process, arangement and apparatus for internal combusti

Details Ignition process, arangement and apparatus for internal combusti Ignition process, arangement and apparatus for internal combusti

1990-07-19

1991-12-03

Argenbright, Tony M.

Internal-combustion engines

High tension ignition system

Using capacitive storage and discharge for spark energy

123335, 123599, F02P 308, F02P 5145

Patent

active

050691937

ABSTRACT:
An ignition method and system for internal combustion engines, especially in lawn mowers or chain saws, in which a magneto induces a plurality of alternating voltage half-waves for each engine revolution to charge an energy-storing element and to discharge it by a switch controlled by the primary coil of an ignition transformer. The switch is actuated when the first half-wave of each revolution reaches a trigger threshold. The ignition system induces the charging alternating voltage dependent upon the rotary position of the engine for the energy storage element and for discharging it via the switch for firing the spark synchronously with the alternating voltage. The system has a timer module which responds to the alternating voltage by producing a signal to block the ignition switch for the duration of a time interval which corresponds to a top speed limit of the internal combustion engine.

REFERENCES:
patent: Re31837 (1985-02-01), Burson
patent: 3367314 (1968-02-01), Hirosawa et al.
patent: 3941111 (1976-03-01), Carmichael et al.
patent: 3960129 (1976-06-01), Hofer et al.
patent: 4441478 (1984-04-01), Fujimoto

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