Patent ID: 6047691
Filing Date: 2000-04-11
Classification: F02P

Abstract:
A resonance transducer ignition system for an engine, comprising:an ignition transformer;a first resonant circuit including a resonance capacitance;a second resonant circuit including a secondary capacitance, the secondary capacitance having a spark plug capacitance, a winding capacitance of the ignition transformer and a stray capacitance;wherein the ignition transformer includes a primary winding and a secondary winding, the ignition transformer coupling the first resonant circuit to the second resonant circuit, a spark plug being coupled to the secondary winding of the ignition transformer, a voltage source being coupled to a first terminal of the primary winding of the ignition transformer;a semiconductor circuit-breaker coupled to a second terminal of the primary winding of the ignition transformer;an open- and closed-loop control unit coupled to the semiconductor circuit-breaker; andan energy recovery diode coupled to the resonance capacitance and to the semiconductor circuit-breaker;wherein an inductive coupling coefficient, k, is greater than 0.65.