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. 24, 2018
Filed:
Feb. 24, 2015
GM Global Technology Operations Llc, Detroit, MI (US);
Cherian A. Idicheria, Novi, MI (US);
Paul M. Najt, Bloomfield Hills, MI (US);
Laxminarayan L. Raja, Austin, TX (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
An igniter includes a central electrode terminating in a firing portion including a plurality of prong tiers distributed axially on the firing portion. Each prong tier including at least one firing prong extending radially outward from the firing portion. The igniter body includes a port end to be received into an engine igniter port, and a shank. The firing portion of the central electrode extends from the shank opposing the port end. A dielectric casing can fully encapsulate the firing portion of the central electrode to define a dielectric barrier adjacent the firing prong. The igniter may include a generally cylindrical ground electrode defining a discharge cavity surrounding the central electrode. The ground electrode includes a plurality of ground prongs defined by the ground electrode and extending radially toward the firing portion. A plurality of apertures defined by the ground electrode are in fluid communication with the discharge cavity.