Patent ID: 7310037

Claim:
An ignition apparatus comprising: a transformer assembly including a central core, a primary and a secondary winding, and an outer core, said central core being elongated and having a main axis, said primary and secondary windings being radially outwardly of said central core; a case configured to house said transformer assembly, said case including a first high-voltage (HV) connection at a first end thereof configured for direct mounting on a first spark plug, said first HV connection having a first capacitance associated therewith when direct mounted to said first spark plug, said case further including a second HV connection at a second end thereof opposite said first end configured for connection to a second spark plug via a high-voltage distribution mechanism, said second HV connection having a second capacitance associated therewith when coupled to said second spark plug; a capacitance balancing structure disposed in said apparatus and arranged such that said first capacitance and said second capacitance are balanced within a predetermined range.