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:
Sep. 23, 2014
Filed:
Dec. 29, 2011
John Antony Burrows, Northwich, GB;
James D. Lykowski, Temperance, MI (US);
John William Hoffman, New Albany, OH (US);
John Antony Burrows, Northwich, GB;
James D. Lykowski, Temperance, MI (US);
John William Hoffman, New Albany, OH (US);
Federal-Mogul Ignition Company, Southfield, MI (US);
Abstract
A corona igniterincludes an electrode gapbetween the central electrodeand the insulatorand a shell gapbetween the insulatorand the shell. An electrically conductive coatingis disposed on the insulatoralong the gapsto prevent corona dischargein the gapsand to concentrate the energy at a firing tipof the central electrode. The electrically conductive coatingis disposed on an insulator inner surfaceand is spaced radially from the electrode. The electrically conductive coatingis also disposed on the insulator outer surfaceand is spaced radially from the shell. During operation of the igniter, the electrically conductive coatingprovides a reduced voltage drop across the gapsand a reduced electric field spike at the gaps