Hydrostatic vehicle drive with differential lock
US6276468A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 3, 2000 |
| Grant date | Aug 21, 2001 |
| Priority date | — |
| Expiry date | May 3, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H39/02
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A hydrostatic vehicle drive (1) comprises a first hydropump (2) and a second hydropump (3) as well as a first hydromotor (7) and a second hydromotor (12). The hydromotors (7, 12) each drive separate drive lines. During straight-ahead travel operation, the hydropumps (2, 3) and the hydromotors (7, 12) are coupled to one another in a single, closed hydraulic circuit without crossed connections in such a manner that an input connection (6) of the first hydromotor (7) is connected to an output connection (5) of the first hydropump (2) and an input connection (9) of the second hydropump (3) is connected to an output connection (8) of the first hydromotor (7). An input connection (11) of the second hydromotor (12) is connected to an output connection (10) of the second hydropump (3), whilst an input connection (14) of the first hydropump (2) is connected to an output connection (13) of the second hydromotor (12).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.