Automatic four-wheel drive transfer case
US4083419A · kind A · utility
19Cited by
9References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 23, 1976 |
| Grant date | Apr 11, 1978 |
| Priority date | — |
| Expiry date | Aug 23, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19116
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A power transfer mechanism incorporated in a multiple path drive system comprises a transfer case disposed between a source of input torque and a pair of drive axles. The torque is transferred directly to the fixed axle and is transferred automatically to the steering axle through a double-acting overrunning clutch when required. The clutch is biased toward one engaged position and is prevented from locking inadvertently in the other engaged position by a direction-sensitive blocking device. Action of this device is timed in order to insure proper blocking.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.