Oil separating structure of automatic transmission
US4739678A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Dec 9, 1985 |
| Grant date | Apr 26, 1988 |
| Priority date | — |
| Expiry date | Dec 9, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19991
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A four wheel drive automatic transmission, comprising: a speed-changing transmission unit; a front wheel transmission mechanism driven by the transmission unit and having a large driving gear and bearings for the large driving gear; a center differential unit having an input member driven by the large driving gear and two output members for driving front wheels and for driving rear wheels, respectively; a transfer with a rear wheel driving transmission having a driving gear member disposed coaxially with the output member for rear wheel driving, a connecting member between the output member for rear wheel driving and the driving gear member and a transfer output gear member driven by the driving gear member; a case in which the front wheel transmission mechanism, the center differential unit and the transfer are disposed; and, an oil separating structure defining separately lubricatable cavities within the case, the structure comprising two seal members, disposed between the connecting member and the case at opposite ends of the rear wheel driving mechanism, whereby the rear wheel driving mechanism is disposed in a cavity within the case which can be filled with a lubricant differe…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.