SPARK AMPLIFIER FOR SPARK PLUG Russian patent published in 2003 - IPC

FIELD: electrical equipment for all industries including internal-combustion engines. SUBSTANCE: spark amplifier designed for spark plugs integrated with other devices incorporating capacitors has tubular insulator accommodating central electrode and capacitor in the form of ceramic bushing with plates, side electrode attached to one of plates and provided with metal ferrule designed for coming in contact with spark plug, and locking member. Amplifier is also provided with capacitor-accommodating body built integral with tubular insulator, and electrically interconnected top and bottom electrodes contacting the plates disposed on butt-ends of ceramic bushing, as well as additional capacitor plate arranged on side surface of bushing; additional plate mounts side electrode disposed inside body, and bottom electrode carries locking member. EFFECT: improved performance of internal-combustion engine, simplified design, reduced mass of spark plug. 1 cl, 1 dwg