Hydraulic control arrangement
AssigneeBosch Rexroth AG
InventorsWolfgang Kauss, Didier Desseux
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AssigneeBosch Rexroth AG
InventorsWolfgang Kauss, Didier Desseux
Estimating the term…
A hydraulic control arrangement is disclosed for the load pressure independent control of a consumer, comprising a distribution valve forming an inlet metering orifice, a corresponding individual pressure compensator, a stop valve provided for each consumer connection which may be released by means of a pilot valve and an anti-cavitation valve by means of which pressure medium can be drawn from a reservoir to avoid cavitation. According to the invention, the distribution valve and the stop valves are arranged along two parallel axes, while the axes of the two pilot valves are arranged perpendicularly to these two axes. The anti-cavitation valves in turn extend perpendicularly to the axes of the distribution valves, the stop valves and the anti-cavitation valves.
A hydraulic control arrangement for the load pressure independent control of a consumer, comprising a housing portion, preferably a valve disk in which a continuously variable distribution valve controlling the pressure medium flow to the consumer is accommodated to which distribution valve an individual pressure compensator is allocated, and comprising at least one stop valve which is arranged in the pressure medium flow path between the distribution valve and the consumer and can be released to permit a pressure medium flow from the corresponding consumer connection, and comprising an anti-cavitation valve via which pressure medium can be sucked from the reservoir in the case of a lacking supply of the consumer, characterized in that the stop valve is controlled by a pilot valve the axis of which extends perpendicularly to the axis of the distribution valve and of the stop valve arranged axially parallel thereto, wherein the pilot valve can be controlled to be opened mechanically by a slide valve of the distribution valve, and that the axis of the pressure-limiting and anti-cavitation valve extends perpendicularly to the axes of the distribution valve and the pilot valve.
Dependencies are inferred from the claim text.