Four wheel drive transfer case with clutch mechanism
US4718303A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 6, 1986 |
| Grant date | Jan 12, 1988 |
| Priority date | — |
| Expiry date | Oct 6, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19102
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A four wheel drive transfer case having a three element planetary gear differential connected to the output shaft of a transmission and having two output shafts which are driven by the differential in a manner such that rotary motion of any one shaft effects rotary motion of the other shafts in a predetemined timed relationship. The transfer case further includes an electromagnetically actuated friction clutch assembly including a ball ramp mechanism and having frictionally engageable members for operably interconnecting two of the planetary gear components in a manner such that relative rotation between the two output shafts is modulated by a torque level established between the frictionally engageable members of the clutch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.