Hydraulic shift transfer case with band brake and bi-directional clutch
US6612957B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2002 |
| Grant date | Sep 2, 2003 |
| Priority date | — |
| Expiry date | Apr 2, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60K17/3467
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A two-speed full-time transfer case includes an input shaft, first and second output shafts, a planetary gearset, an interaxle differential, and first and second clutch mechanisms. The planetary gearset includes a sun gear integral with the input shaft, an annulus gear, and pinion gears rotatably mounted on a carrier and which are meshed with the sun and annulus gears. The interaxle differential has an input driven by the carrier, a first output driving the first output shaft and a second output driving a transfer mechanism coupled to the second output shaft. The first clutch mechanism is a fluid-actuated bi-directional overrunning clutch operable for selectively braking the annulus gear. The second clutch mechanism is a fluid-released bi-directional overrunning clutch for selectively releasing the input shaft from coupled engagement with the carrier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.