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. 21, 2021
Filed:
Mar. 07, 2018
Denso Corporation, Kariya, JP;
Plasma Applications Co., Ltd., Hamamatsu, JP;
Shota Kinoshita, Kariya, JP;
Fumiaki Aoki, Nishio, JP;
Daisuke Tanaka, Nishio, JP;
Akimitsu Sugiura, Kariya, JP;
Jan Husarik, Hamamatsu, JP;
Masashi Kando, Hamamatsu, JP;
DENSO CORPORATION, Kariya, JP;
PLASMA APPLICATIONS CO., LTD., Hamamatsu, JP;
Abstract
An ignition apparatus is provided which ignites a mixture of air and fuel gas by plasma to generate an initial flame. The apparatus includes: a spark plug that includes an inner conductor, a cylindrical outer conductor that holds the inner conductor thereinside, and a dielectric that is provided between the inner conductor and the outer conductor, and that generates plasma in a plasma formation space between the inner conductor and the outer conductor; an electromagnetic wave power supply that generates an electromagnetic wave to apply electromagnetic wave power to the spark plug; an evaluation section that evaluates a state of formation of the plasma; a determination section that determines a matching object of the electromagnetic wave based on an evaluation result by the evaluation section; and a coupled state control section that controls a matching condition of the electromagnetic wave so that the electromagnetic wave matches the matching object.