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. 23, 2021
Filed:
Jun. 13, 2018
Denso Corporation, Kariya, JP;
Plasma Applications Co., Ltd., Hamamatsu, JP;
Shota Kinoshita, Kariya, JP;
Fumiaki Aoki, Nisshin, JP;
Daisuke Tanaka, Nisshin, JP;
Akimitsu Sugiura, Kariya, JP;
Jan Husarik, Hamamatsu, JP;
Masashi Kando, Hamamatsu, JP;
DENSO CORPORATION, Kariya, JP;
PLASMA APPLICATIONS CO., LTD., Hamamatsu, JP;
Abstract
In an ignition apparatus, an ignition plug is provided. In the ignition plug, a tubular outer conductor surrounds an inner conductor, and a dielectric member is disposed in the tubular outer conductor to define a plasma formation region between the inner conductor and the dielectric member. The plasma formation region has opposing first and second ends in the axial direction of the tubular outer conductor, and the first end of the plasma formation region communicates with the combustion chamber. A power source is connected between the inner and tubular outer conductors. A controller causes a power source to apply electromagnetic power pulses with intervals therebetween across the inner and tubular outer conductors during an ignition cycle of an engine. Each of the electromagnetic power pulses forms at least a corresponding plasma in the plasma formation region.