Hydrostatic traveling mechanism
US6662557B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 8, 2002 |
| Grant date | Dec 16, 2003 |
| Priority date | — |
| Expiry date | May 8, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H61/448
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The invention relates to a hydrostatic traveling mechanism (1) which comprises a hydraulic pump (4), a first hydraulic engine (8) that is linked with the hydraulic pump (4) via a hydraulic work circuit (2) and that drives a first drive train (17). The traveling mechanism further comprises a second hydraulic engine (10) that is linked with the hydraulic pump (4) via a hydraulic work circuit (2) and that drives a second drive train (19). The inventive traveling mechanism is also provided with a third hydraulic engine (23) that is coupled with the first drive train (17) and a fourth hydraulic engine (24) that is coupled with the second drive train (19). The third hydraulic engine (23) and the fourth hydraulic engine (24) are linked with each other via a hydraulic secondary circuit (3) that is independent of the work circuit (2).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.