SPARK PLUG Russian patent published in 2003 - IPC

FIELD: electrical engineering; internal combustion engines and other power units. SUBSTANCE: spark plug physically integrated with other devices has body with two electrodes whose butt-end is free to reciprocate in longitudinal direction due to connection of mechanical ultrasonic high-frequency vibration exciter to ultrasonic generator. Vibrations reduce external friction when electrodes and body come in contact with working medium in cylinder both during initial moment and during next time interval of process, and augment atomizing of fuel particles occurring on butt-end part of spark plug. Such arrangement provides for enhancing effectiveness of gas mixture ignition, augmented spark formation by increasing breakdown rate, enlarging spark discharge volume, and improving stability of its maintenance. EFFECT: enhanced service life of spark plug due to mechanical vibrations eliminating internal stress in electrodes. 9 cl, 11 dwg