Motorcycle power unit
US8011477B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2007 |
| Grant date | Sep 6, 2011 |
| Priority date | — |
| Expiry date | Jul 6, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2057/0203
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An internal combustion engine includes a continuously variable transmission chamber formed of a crank case and a cover member connected to the crank case to permit the use of oil different between the internal combustion engine and the continuously variable transmission. Thereafter, a sufficient amount of each oil is ensured to not reduce the lowest road clearance. A division wall divides an interior of an oil pan into an internal combustion engine side oil reservoir and a continuously variable transmission side oil reservoir that reserves oil for lubrication of a continuously variable transmission and for speed control thereof, and which is connected to a lower portion of a crank case. The continuously variable transmission side oil reservoir is formed in a width direction of the motorcycle wherein part of continuously variable transmission side oil reservoir expands more outwardly than a continuously variable transmission chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.