Hydrostatic drive system
US7600377B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 2, 2006 |
| Grant date | Oct 13, 2009 |
| Priority date | — |
| Expiry date | Dec 1, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H61/4148
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydrostatic drive system has a pump (1) and at least one consumer (5) controlled by a control valve (4) that can be actuated by control signals. A precharge device (10) that generates a precharge pressure is located in a reservoir line (7) that leads from the control valve (4) to a reservoir (2). The precharge device can be pressurized as a function of the control signals of the control valve (4). To make possible a recharge during the deceleration of a consumer, the precharge device (10) can be pressurized in the direction of an elevation of the precharge pressure when there is a decreasing control signal of the control valve (4).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.