Hydrostatic drive system
US8037681B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 11, 2006 |
| Grant date | Oct 18, 2011 |
| Priority date | — |
| Expiry date | Dec 7, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2211/6313
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A hydrostatic drive system (1) has a load-sensing pump (2) with an adjustable discharge volume and at least one consumer connected to the pump (2). The discharge volume of the pump (2) can be set by a discharge volume control device (6) that sets the delivery pressure of the pump available in a delivery line (4) of the pump (2) so that it is higher by a pilot control pressure difference than the load pressure of the consumer. The discharge volume control device (6) can be actuated by an electronic control device (7) functionally connected with a sensor device (9) for measuring the load pressure of the consumer and with a sensor device (8) for measuring the delivery pressure available in the delivery line (4). A circulation device (15) is associated with the delivery line (4) to control the connection of the delivery line (4) with a reservoir (3).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.