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:
Nov. 02, 2010
Filed:
Jun. 19, 2008
Tomoo Shiozaki, Saitama, JP;
Masahiro Shimizu, Saitama, JP;
Tomoo Shiozaki, Saitama, JP;
Masahiro Shimizu, Saitama, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A power unit for a motorcycle includes an internal combustion engine having a crankcase rotatably supporting a crankshaft with an axis located on a split face between an upper case half body and a lower case half body and a continuously variable transmission having a belt. Two types of respective different oils for an internal combustion engine and for a continuously variable transmission are used while the rigidity of the crankcase is enhanced. A crankcase is provided with a partition wall that separates between a crank chamber housing a crankshaft and a continuously variable transmission chamber housing a continuously variable transmission. An axial line of the crankshaft and respective axial lines of the drive pulley and the driven pulley are each located at a corresponding one of apexes of an imaginary triangle on a view projected on a plane perpendicular to the axial line of the crankshaft.