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. 24, 2020
Filed:
Jul. 03, 2019
Applicant:
Denso Corporation, Kariya, Aichi-pref., JP;
Inventors:
Akimitsu Sugiura, Kariya, JP;
Kaori Doi, Kariya, JP;
Assignee:
DENSO CORPORATION, Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02P 9/00 (2006.01); F02P 3/01 (2006.01); F02D 41/30 (2006.01); H01T 13/02 (2006.01); F02P 15/08 (2006.01);
U.S. Cl.
CPC ...
F02P 9/002 (2013.01); F02D 41/3023 (2013.01); F02P 3/01 (2013.01); F02P 15/08 (2013.01); H01T 13/02 (2013.01);
Abstract
An ignition device for an internal combustion engine is provided which includes a spark plug and a controller. The spark plug has a housing with a head protruding into a combustion chamber of the engine. The head has at least a portion located downstream of a spark gap of the spark plug in an air-fuel mixture flow within the combustion chamber. The controller works to perform a plurality of discharge events in the spark plug in each cycle of an operation of the engine. This improves the ability of the spark plug to ignite the mixture without need to increase an ignition energy.