The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 13, 2021
Filed:
Jun. 07, 2019
Cummins Inc., Columbus, IN (US);
Alan C. Anderson, Columbus, IN (US);
William Marshall Cover, Columbus, IN (US);
Xu Han, Columbus, IN (US);
Benjamin L. Olivas, Columbus, IN (US);
Daniel J. O'Connor, Columbus, IN (US);
Daniel Guillermo Gonzalez Medina, Columbus, IN (US);
Xiao Qin, Columbus, IN (US);
Nicholas James Welch, Columbus, IN (US);
Andrew Guy Kitchen, Daventry, GB;
Cummins Inc., Columbus, IN (US);
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.