Design of a Plasma Jet Ignition System for Automotive Application 770355

The development of a plasma jet ignition system based on use of plasma jet spark plugs is described. Particular attention is given to systems design for automotive application. Design data for plasma jet spark plugs are given. Tests on a 37.3 CID single cylinder engine with vapor tank fuel metering indicate that plasma jet ignition produces extension of the lean misfire limit, reduction of ignition delay and burn time, higher NO, and increased torque compared to conventional ignition. Discussion of the electrical power requirements of a plasma jet ignition system is given. Operating experience for a four cylinder 2.3L test vehicle is described.


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