Oil storage structure for engine, engine incorporating same, and vehicle incorporating same
US8316815B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2010 |
| Grant date | Nov 27, 2012 |
| Priority date | — |
| Expiry date | Jun 4, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2057/02065
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An internal combustion engine includes an oil storage structure defining an oil storage chamber provided for storing oil therein. The engine is configured such that a crankcase cover, covering a clutch mechanism, is joined to a crankcase for forming an oil storage chamber. The oil storage structure is applied to an engine having a vertically split crankcase, and is configured to prevent the clutch mechanism from dipping into stored oil so that clutch disengagement performance is not affected, and reliability of the liquid-tight sealing performance is extended. The crankcase cover is formed with a partition wall extending along the outer circumference of the clutch mechanism. The partition wall splits a space between the crankcase and the crankcase cover into two chambers. Of these chambers, a chamber separate from a clutch mechanism is used as the oil storage chamber, which is formed only by a lower crankcase and the crankcase cover.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.