Vehicle drive-train transfer case
US4901598A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 1985 |
| Grant date | Feb 20, 1990 |
| Priority date | — |
| Expiry date | Nov 29, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19084
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A transfer case for selectively providing four-wheel drive for a motor vehicle comprises a first clutch for shifting the input torque to and between a high speed power path, a low speed power path and a neutral position, as well as a second clutch for selectively engaging first and second output shafts for connection with the low and high speed power paths. Each clutch includes a slidable collar which is aligned with and slidable along the axis of the input shaft of the transfer case. Preferably, a single selector is used to shift the first and second clutch collars to provide the transfer case with four operating modes: a neutral position in which the input shaft is disengaged from the first and second output shafts, a two-wheel drive high speed output, a four-wheel drive high speed output and a four wheel drive low speed output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.