Hydraulic four-wheel drive system
US4886142A · kind A · utility
51Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 1988 |
| Grant date | Dec 12, 1989 |
| Priority date | — |
| Expiry date | Jun 27, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60K17/356
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A hydraulic four-wheel drive apparatus for driving by a hydraulic motor four wheels: steering wheels and driving wheels, in which the steering wheels are driven by a variable capacity motor for the steering wheels and a front differential gear unit, and the driving wheels are driven by a fixed capacity motor for the driving wheels, so that, when a vehicle turns, a swash plate of the variable capacity motor associates with operation of a steering handle, thereby accelerating the speeds of steering wheels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.