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:
Aug. 12, 2014
Filed:
Aug. 01, 2011
Naoki Koga, Tokyo, JP;
Takuo Yoshizaki, Tokyo, JP;
Daisuke Yamada, Tokyo, JP;
Yamabiko Corporation, Tokyo, JP;
Abstract
A loop scavenged two-stroke internal combustion engine which can effectively restrain blow-by of fresh gas with a relatively simple configuration is provided. A horizontal scavenging angle θb in at least one spot of a scavenging passageL located at one side of the pair of or a plurality of pairs of left and right scavenging passages is made to differ from a horizontal scavenging angle θa of a scavenging passageR located at the other side, and a main flow of a scavenging flow which is blown out from the scavenging passageL located at the one side and a main flow of a scavenging flow which is blown out from the scavenging passageR which is located at the other side intersect each other or collide with each other in plane view in a region displaced in a lateral direction from a center line C of an opening of an exhaust port