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.

Date of Patent:
Feb. 23, 2021

Filed:

Jul. 13, 2020
Applicant:

Denso Corporation, Kariya, JP;

Inventors:

Daisuke Shimamoto, Kariya, JP;

Yuya Abe, Kariya, JP;

Masamichi Shibata, Kariya, JP;

Assignee:

DENSO CORPORATION, Kariya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01T 13/32 (2006.01); H01T 13/39 (2006.01); H01T 13/02 (2006.01); F02P 13/00 (2006.01);
U.S. Cl.
CPC ...
H01T 13/32 (2013.01); H01T 13/02 (2013.01); H01T 13/39 (2013.01); F02P 13/00 (2013.01);
Abstract

A spark plug includes a ground electrode facing a distal end surface of a center electrode. In a main body of the ground electrode, a first slanted surface is formed at a portion on a side facing the distal end surface and upstream of the center electrode relative to the airflow, a facing portion, a second slanted surface is formed at a portion on a side opposite to the side facing the distal end surface and upstream of the center electrode relative to the airflow, and when T represents a thickness of the main body of the ground electrode and Su represents a distance from a connection between the first slanted surface and the second slanted surface to the facing portion, 2T/16≤Su≤8T/16.


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