Drive arrangement for a vehicle
US4815334A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 1, 1987 |
| Grant date | Mar 28, 1989 |
| Priority date | — |
| Expiry date | Jul 1, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19014
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The invention provides an improved form of drive arrangement for use in a motor vehicle comprising a first prime mover, a hydromechanical power branching transmission, driven by the prime mover, and having at least two hydromechanical transducers, by the inclusion of an emergency drive device which comprises a second prime mover adapted to act as a standby prime mover and an adjustable hydromechanical transducer arranged to be driven by the second prime mover. The second prime mover is adapted to supply hydraulic power via the adjustable hydromechanical transducer to the hydromechanical transducers of the power branching transmission and thence to a driven axle of the vehicle in the event of the first prime mover becoming inoperative, for example, if the first prime mover fails or (in the event of its being an electric motor) if its supply of energy breaks down.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.