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. 08, 2020
Filed:
Mar. 03, 2017
Mazda Motor Corporation, Hiroshima, JP;
Yasushi Nakahara, Higashihiroshima, JP;
Yohei Suzuki, Hiroshima, JP;
Tsuyoshi Yamamoto, Hiroshima, JP;
Michiharu Kawano, Hiroshima, JP;
Yuya Honda, Hiroshima, JP;
Kento Onishi, Hiroshima, JP;
MAZDA MOTOR CORPORATION, Hiroshima, JP;
Abstract
In an engine (), when an intake valve () opens, a downstream end portion () of a first intake port () extends to direct to between a shade back () positioned on a cylinder axis (C) side with respect to a valve stem () and a ceiling surface () facing the shade back (). As viewed in a section perpendicular to a direction perpendicular to an intake air flow direction, a second intake port side inner wall surface () at the downstream end portion () of the first intake port () curves apart from a second intake port () in a direction from an exhaust side to an intake side as compared to the shape of an opposite second intake port side inner wall surface () mirror-reversed to a second intake port () side.