Ignition transformer secondary winding by-pass apparatus

Details Ignition transformer secondary winding by-pass apparatus Ignition transformer secondary winding by-pass apparatus

1990-03-05

1992-01-28

Scott, J. R.

Electricity: electrical systems and devices

Igniting systems

For electric spark ignition

315209M, 361263, F23G 300, H05B 3702

Patent

active

050848003

ABSTRACT:
In a capacitive discharge type ignition apparatus, in which an ignition transformer is used, the impedance of the secondary winding of the ignition transformer is comparatively large. This means the power loss is large and the efficiency, in applying a high power voltage to an igniter plug, is lowered. In this invention, a low impedance bypass circuit is connected in parallel circuit with the secondary winding of the ignition transformer, so that the spark current flows through the bypass circuit. By this arrangement, the power loss in the secondary winding is made to be substantially zero. Thus, a powerful spark is generated in the igniter plug efficiently, reliably and with simple circuitry.

REFERENCES:
patent: 3383553 (1968-05-01), Parish et al.
patent: 4034270 (1977-07-01), Matthews
patent: 4167767 (1979-09-01), Courier de Mere361256

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