Four-wheel vehicle drive system
US4645029A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 5, 1985 |
| Grant date | Feb 24, 1987 |
| Priority date | — |
| Expiry date | Nov 5, 2005 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2200/0034
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a transaxle mechanism for use in a four-wheel drive system of an automotive vehicle. The four-wheel vehicle drive system includes a central differential gear assembly, a front-wheel differential gear assembly, a ring gear and a bevel gear. The central differential gear assembly includes: a toothed wheel which engages with a transmission output gear of a power transmission gear unit; a central differential case fixed to the toothed wheel; a central pinion cross shaft fixed to the central differential case; central differential bevel pinions mounted rotatably on the central pinion cross shaft and central side bevel gears engaging with the central differential bevel pinion. The front-wheel differential gear assembly include; a front-wheel differential case fixed to one of the central side bevel gears; a front-wheel pinion cross shaft fixed to the front-wheel differential case; front-wheel differential bevel pinions mounted rotatably on the front wheel pinion cross shaft; front-wheel side bevel gears engaging with the front wheel differential bevel pinions and being secured to front wheel shafts. A second of the central side bevel gear has a hollow shaf…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.