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. 16, 2013
Filed:
Feb. 09, 2010
Naohiro Shimizu, Aichi, JP;
Naohiro Shimizu, Aichi, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
To provide a plasma igniter capable of generating a discharge such as a pulse streamer discharge in a large region even by application of a low voltage, implementing powerful ignition by pulse voltage application in two or more stages, improving an air-fuel ratio (A/F), and reducing a COemission amount. A plasma igniter includes an igniter part having a combustion chamber, and a discharge part arranged in such a manner that its discharge tip end is exposed to the combustion chamber. The discharge tip end has a column-shaped anode, an annular cathode arranged to be a predetermined interval away from an anode tip end part, and an annular floating electrode arranged between the anode tip end part and the cathode.