Cummins Inc.

Benjamin L Olivas

David J Stroh

Karthik Kappaganthu

Akash S Desai

Douglas Sprunger

Andrew Guy Kitchen

Alan C Anderson

Daniel J O'Connor

Nicholas James Welch

Xiao Qin

Xu Han

William Marshall Cover

Daniel Guillermo Gonzalez Medina

A spark plug is disclosed that includes at least one bore extending through a shell of the spark plug in order to form a passageway between an annular volume around the spark plug insulator nose and a pre-chamber volume of a pre-chamber device, thus directing a purge of exhaust gases trapped in the annular volume to a space formed by the exterior of the spark plug body and the interior of the pre-chamber device.

Spark plug for an internal combustion engine having a combustion pre-chamber

A method of responding to a detected blowout in a coil ignition system is provided in this disclosure. The method includes receiving a characteristic regarding operation of a coil ignition system; determining a blowout condition exists for the coil ignition system based on the characteristic; and providing a command to the coil ignition system based on the determination that the blowout condition exists, wherein the command is structured to reduce a residual charge amount in the coil ignition system.

Dual coil ignition system

Growing community of inventors

Columbus, IN, United States of America

Benjamin L Olivas