Hydrostatic drive
US8707691B2 · kind B2 · utility
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5References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 13, 2011 |
| Grant date | Apr 29, 2014 |
| Priority date | — |
| Expiry date | Oct 12, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H61/431
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A hydrostatic drive, in particular a fan drive, with a variable displacement pump is configured to drive at least one hydraulic motor. The variable displacement pump is activated via a pressure regulating valve and a following directional valve predetermining the feed direction, via which valves the control spaces of an actuating cylinder can be acted upon with a control pressure difference. The variable displacement pump is prestressed into a basic position in which the feed volume flow is maximum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.