Drive device comprising a hydraulic motor and a reduction gear
US6569047B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2001 |
| Grant date | May 27, 2003 |
| Priority date | — |
| Expiry date | Sep 7, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H57/0467
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A drive device incorporating a hydraulic motor and a planetary reduction gear. The motor includes a housing in which radial pistons are disposed. The device includes a coupling between the output of the motor and the input of the reduction gear, the reduction gear including a housing in which a planetary reduction gear system is disposed having an output provided for driving in rotation. The housing of the motor and the housing of the reduction gear form distinct enclosures and the device allows circulation of fluid between these housings and for controlling this circulation by limiting this circulation in at least one direction of circulation between the housing of the motor and the housing of the reduction gear.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.