Vehicle with hydraulic assistance by transmitting torque from a driving axle to a driven axle
US9604537B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2013 |
| Grant date | Mar 28, 2017 |
| Priority date | — |
| Expiry date | Sep 19, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60K2023/0858
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicle including a driving axle (10), a driven axle (20), a hydraulic pump (14) and a hydraulic motor (24) providing hydraulic assistance for driving the driven axle (20) by lapping off torque applied to the driving axle (10). The driving axle (10) comprising includes a differential (11) thus defining two output half axles on which wheels are mounted. Rotation of the box allows the output half axles to be rotationally driven at distinct speeds. The hydraulic pump (14) includes a rotor and a stator, the stator being mounted fixed with respect to the chassis and the rotor being connected to and rotating as one with the differential box (11). The hydraulic pumps (14) are rotationally driven at a speed equal to the average speed of the two half axles associated with the differential (11) on which the pump is mounted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.