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:
Jan. 10, 2023
Filed:
Jun. 17, 2022
Yamabiko Corporation, Tokyo, JP;
Kenta Ito, Tokyo, JP;
Takahiro Yamazaki, Tokyo, JP;
Shouta Genba, Tokyo, JP;
Takahiro Kinoshita, Tokyo, JP;
YAMABIKO CORPORATION, Tokyo, JP;
Abstract
An engine () is a four-flow scavenging type engine. Four scavenging ports () include: first right and left scavenging ports ((lef-) and(ref-)) that lie on a side relatively away from an exhaust port () and that lie facing each other with a cylinder () in between; and second right and left scavenging ports ((lef-) and(ref-)) that lie closer to the exhaust port () than first right and left scavenging ports do and that lie facing each other with the cylinder () in between. The second left scavenging port and the first right scavenging port that make up a first mutually diagonal set (Diag-No.) have different opening timings from those of the first left scavenging port and the second right scavenging port that make up a second mutually diagonal set (Diag-No.).