Hydrostatic drive with rotational speed limitation
AssigneeBrueninghaus Hydromatik GmbH
InventorsGrit Geissler, Reinhold Schniederjan, Karl-Heinz Vogl, Markus Gepraegs
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Abstract
The invention related to a hydrostatic drive comprising a hydraulic pump (3) which is driven by a drive machine (2) and pumps into at least one first working line (4), and a pressure line (18) in which a feed quantity dependent on the speed of the drive machine (2) flows. When a differential pressure value in the pressure line (18) is exceeded, the pressure means can be extracted from the first working line (4).
Claims7
A hydrostatic drive comprising a hydraulic pump connected to a hydraulic motor by a first work line, such that when the pump is driven by a driving machine, the pump delivers pressure medium into the first line, and such that when the hydraulic motor operates as a pump, in an overrun mode, the hydraulic motor delivers pressure medium into the first work line;
- a feed quantity of fluid flows into a feed pressure line, dependent on a rotational speed of the driving machine;
- wherein, when in the overrun mode and when a differential pressure limiting value in the feed pressure line is exceeded, a first partial flow of the pressure medium in the first work line is removed, so as to not flow to a hydraulic pump and a second partial flow is forwarded to the hydraulic pump.
Dependencies are inferred from the claim text.