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US 6,386,089 B2Granted
Hydraulic steering arrangement
AssigneeSauer-Danfoss Holding A/S
InventorsSvend Giversen, Johan van Beek, Lars Mortensen, Ole Vincentz Sørensen
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AssigneeSauer-Danfoss Holding A/S
InventorsSvend Giversen, Johan van Beek, Lars Mortensen, Ole Vincentz Sørensen
Estimating the term…
A hydraulic steering arrangement, having a steering value, which connects a steering motor with a pump, and which has a slide with two front sides, the slide being adjustable by means of a pressure fluid both through a hydraulic steering unit with a steering hand wheel and through an electro hydraulic steering unit with a control pressure generator. The two steering units have working connections and the front sides of the slide are connected with shuttle valves, each of which is connected with hydraulic steering unit on the one side and with the electro hydraulic steering unit on the other side. A valve arrangement connects the working connection of both steering units, which has the highest pressure, with one front side of the slide, and the working connection of both steering units, which has the lowest pressure, with the other front side of the slide.
Hydraulic steering arragement having a steering valve which connects a steering motor with a pump, the steering valve having a slide with two front sides, the slide being adjustable by means of a pressure fluid both through a hydraulic steering unit having a steering hand wheel and through an electro hydraulic steering unit having a control pressure generator, the two steering units having working connections and the front side of the slide being connected to shuttle valves, each of which being connected with the hydraulic steering unit on one side and with the electro hydraulic steering unit on a second side, and including a valve arrangement, which, during normal operation, connects the working connection of both steering units, which has highest pressure, with one front side of the slide, and the working connection of both steering units, which has lowest pressure, with the other front side of the slide.
Dependencies are inferred from the claim text.