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1. (WO2018106924) SPARK PLUG FOR AN INTERNAL COMBUSTION ENGINE HAVING A COMBUSTION PRE-CHAMBER

Pub. No.:    WO/2018/106924    International Application No.:    PCT/US2017/065123
Publication Date: Fri Jun 15 01:59:59 CEST 2018 International Filing Date: Fri Dec 08 00:59:59 CET 2017
IPC: F02P 13/00
F02B 19/10
F02B 19/12
H01T 13/54
Applicants: CUMMINS INC.
Inventors: ANDERSON, Alan C.
COVER, William Marshall
HAN, Xu
OLIVAS, Benjamin L.
O'CONNOR, Daniel J.
KITCHEN, Andrew Guy
MEDINA, David Guillermo Gonzalez
QIN, Xiao
WELCH, Nicholas James
Title: SPARK PLUG FOR AN INTERNAL COMBUSTION ENGINE HAVING A COMBUSTION PRE-CHAMBER
Abstract:
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.