Power transfer device for four-wheel drive
US4876919A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 25, 1988 |
| Grant date | Oct 31, 1989 |
| Priority date | — |
| Expiry date | Jul 25, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19005
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In combination with a power transfer device, a power transmission includes a first shaft rotatably mounted within a housing and having an input end for connection to an output shaft of the transmission and an output end for drive connection to a pair of rear road wheels, a second shaft rotatably mounted within the housing in parallel with the first shaft for drive connection to a pair of rear road wheels, a drive member rotatable on the first shaft, a driven member mounted on the second shaft for rotation therewith and being drivingly connected to the drive member, a limited-clip differential in the form of viscous clutch coupling having an outer casing mounted on the first shaft for rotation therewith and coupled in a liquid-tight manner with an inner sleeve rotatably on the first shaft for defining a viscous fluid chamber and for relative rotation thereto, and a clutch sleeve axially movably mounted on a hub portion of the drive member for rotation therewith and shiftable between a first position where it is engaged with both the outer casing and inner sleeve of the coupling and a second position where it is engaged with only the inner sleeve of the coupling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.