Ignition circuit, especially for magneto-triggered internal combustion engines

Patent · Tue Sep 09 04:00:00 EDT 1986

OSTI ID:5195698

Ionescu, D; Soiman, M

An electronic ignition system is described for an internal combustion engine having at least one spark plug and a magneto having at least one magneto coil with a single low-voltage winding in the coil. The system consists of: a charging circuit connected to the winding and providing a rectified output; a discharge condenser continuously connected to the charging circuit and adapted to be charged by the output; a triggering circuit including: an electronic switch having a control electrode, and a high voltage transformer connectable by the switch, when the switch is triggered to the condenser, the spark plug being connected to the transformer for firing when the switch is triggered by the control electrode; and a nonlinear network connected to the winding and logarithmically responsive to a signal generated therein for triggering the control electrode to effect a discharge of the condenser through the transformer to fire the spark plug whereby a firing point is automatically advanced and retarded depending upon the logarithmic response of the nonlinear network.

• Assignee: Wedtech Corp., Bronx, NY
• Patent Number(s): US 4610237
• OSTI ID: 5195698
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330101* -- Internal Combustion Engines-- Spark-Ignition
CAPACITORS
CONTROL SYSTEMS
ELECTRIC COILS
ELECTRIC DISCHARGES
ELECTRIC POTENTIAL
ELECTRICAL EQUIPMENT
ELECTRODES
ELECTRONIC CIRCUITS
ENGINES
EQUIPMENT
HEAT ENGINES
IGNITION SYSTEMS
INTERNAL COMBUSTION ENGINES
JUNCTION DIODES
MAGNET COILS
PULSE CIRCUITS
RESISTORS
SEMICONDUCTOR DEVICES
SEMICONDUCTOR DIODES
SIGNALS
SPARK IGNITION ENGINES
SWITCHES
TRANSFORMERS
TRANSISTORS
TRIGGER CIRCUITS