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:
Mar. 23, 2011
Kazuyuki Uenoyama, Tokyo, JP;
Takahiro Kimura, Tokyo, JP;
Kazuyuki Uenoyama, Tokyo, JP;
Takahiro Kimura, Tokyo, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Abstract
A scavenging passage structure for a two-stroke engine, having a scavenging passage communicating a scavenging port provided in a cylinder with a crank chamber formed inside a crankcase, the scavenging passage being formed to extend through respective fastening surfaces of the cylinder and the crankcase. The scavenging passage includes a cover member attached inside the crankcase to be in contact with an inner wall surface of the crankcase, and a groove formed in at least one of the inner wall surface of the crankcase contacting the cover member, and the cover member contacting the inner wall surface of the crankcase, the groove forming part of the scavenging passage connecting to the crank chamber and to an upper face of the crankcase.