Hydraulic steering arrangement
AssigneeSauer-Danfoss Holding A/S
InventorsOle Vincentz Sørensen, John Børsting, Lars Mortensen, John Kristensen, Peter Peistrup
Life of this patent
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Abstract
A hydraulic steering arrangement with a steering handwheel which is connected with a hydraulic steering unit, and with a steering motor connected with a pump via a steering valve. In a steering arrangement of this kind, a simple construction is desired, though under maintenance of the required security. For this purpose, the steering valve can optionally be operated by a steering handwheel or by a hydraulic pressure generated by a control pressure generator.
Claims9
Hydraulic steering arrangement having a steering handwheel which is connected with a hydraulic steering unit and having a steering motor connected with a pump via a steering valve, a control pressure generator and means for operating the steering valve by either the steering handwheel or hydraulic pressure generated by the control pressure generator, and in which the control pressure generator is electrical and converts an electrical input signal to a hydraulic control pressure.
Hydraulic steering arrangement having a steering handwheel which is connected with a hydraulic steering unit and having a steering motor connected with a pump via a steering valve, a control pressure generator and means for operating the steering valve by either the steering handwheel or hydraulic pressure generated by the control pressure generator, and in which for each movement direction of a slide of the steering valve, the steering valve is connected with an outlet of a shuttle valve having one inlet connected to the steering unit and another inlet connected to the control pressure generator.
Hydraulic steering arrangement having a steering handwheel which is connected with a hydraulic steering unit and having a steering motor connected with a pump via a steering valve, an electric control pressure generator and means for operating the steering valve by either the steering handwheel or hydraulic pressure generated by the control pressure generator, and in which a pump inlet of the steering valve is connected to an outlet of a shuttle valve having one inlet of the shuttle valve connected with the pump and another inlet of the shuttle valve connected with the steering unit.
Dependencies are inferred from the claim text.