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:
Mar. 30, 2021
Filed:
Dec. 11, 2018
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Hisao Suzuki, Mishima, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
An internal combustion engine includes: a combustion chamber surrounded by a cylinder bore wall, a piston crown part, and a cylinder head wall; a spark plug arranged at the cylinder head wall and having a spark generating part; and a partitioning wall part partitioning the combustion chamber into a main combustion chamber at which the piston crown part is exposed and an ignition chamber at which the spark generating part is exposed, the partitioning wall part being formed with a plurality of through holes connecting the main combustion chamber and the ignition chamber. The axes of the plurality of through holes are formed so that at predetermined regions from ignition chamber side opening parts of the plurality of through holes, the directions toward the ignition chamber side opening parts all are substantially the same.