Auxiliary hydrostatic wheel drive
US4071106A · kind A · utility
10Cited by
10References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1976 |
| Grant date | Jan 31, 1978 |
| Priority date | — |
| Expiry date | Sep 27, 1996 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H61/456
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A supplementary hydrostatic front wheel drive for a motor grader or the like utilizes pump flow from an already existing implement system as the source of supply to operate the drive wheel motors. The drive wheel motors are of the variable displacement over center type, and the system provides equal flow to both drive wheel motors to establish a synchronized rotational speed of both drive wheel motors. The displacements of the drive wheel motors are responsive to vehicle ground speed. The drive wheel components may include friction driving means which are responsive to the primary vehicle drive system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.