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:
Nov. 09, 2010
Filed:
Nov. 22, 2006
Applicants:
Satoshi Nagasawa, Nagoya, JP;
Katsunori Hagiwara, Mie, JP;
Wataru Matsutani, Nagoya, JP;
Inventors:
Assignee:
NGK Spark Plug Co., Ltd., Aichi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01T 13/54 (2006.01); H01T 13/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
There is provided a method for controlling a plasma-jet spark plug in a four-stroke internal combustion engine, including the steps of: causing the spark plug to generate a primary discharge during either a compression stroke or an expansion stroke of the engine in such a manner as to produce a plasma by the primary discharge; and causing the spark plug to generate a secondary discharge during a time after the primary discharge and before the completion of a subsequent intake stroke of the engine.