Hydrostatic transmission
US6775977B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 17, 2002 |
| Grant date | Aug 17, 2004 |
| Priority date | — |
| Expiry date | Sep 17, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H39/04
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydrostatic transmission includes a pump and a motor, each of which is an axial piston engine utilizing a swashplate design. The pump and the motor are located coaxially one behind the other and are connected to each other. To expand the range of possible uses of the hydrostatic transmission and retain its compact size, the motor has a hollow output shaft, through which a power take-off shaft driven by a drive shaft of the pump is routed. The swashplate of the pump and the swashplate of the motor can be located on opposite ends of the hydrostatic transmission. Axially between the cylinder drum of the pump and the cylinder drum of the motor there is a common control base mount which is provided with supply channels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.