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:
Apr. 20, 2021
Filed:
Sep. 23, 2019
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Noriyuki Takada, Susono, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
A cylinder head () is formed with a pre-chamber () surrounded by a thin pre-chamber wall () sticking out from the inside wall surface of the cylinder head () to the inside of a main combustion chamber (). Inside the pre-chamber (), the electrode of a spark plug () is arranged. When the spark plug () is used to burn the air-fuel mixture inside the pre-chamber (), jet flames are ejected from the communication holes () to the main combustion chamber (). The thin pre-chamber wall () is formed into a two-layer structure of an outside wall () facing the main combustion chamber () and an inside wall () facing the pre-chamber (). The inside wall () is formed by a material with a higher heat conductivity than the outside wall ().