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. 24, 2010
Filed:
Aug. 14, 2007
Power unit case configured to house both an engine and a transmission, and power unit including same
Hodaka Mukouhara, Saitama, JP;
Tensei Hayashi, Saitama, JP;
Eiko Shiozaki, Saitama, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A power unit case for a power unit, including an internal combustion engine and a transmission, makes it possible to enhance the lubrication of a desired meshing portion of a group of transmission gears, while reducing the size of the engine. In the power unit case, a main shaft is arranged above a space between a crankshaft and a counter shaft arranged at a position substantially horizontally behind the crankshaft. A gear-ratio selecting member is arranged above a group of transmission gears on the counter shaft whose upper portion rotates toward a meshing portion between groups of transmission gears, and a lubricating projection that projects downwardly is formed in the transmission case above each of the transmission gears on the counter shaft and at a location on a ceiling surface of the transmission case where the gear-ratio selecting member is supported.