The present invention relates to a hydraulic steering system for a vehicle, in particular an industrial truck, comprising: a steering cylinder having two chambers and a hydraulic connection at each of the two chambers for activating a steering movement of at least one wheel of the vehicle; at least one hydraulic pump; at least one hydraulic tank for receiving hydraulic oil; and a steering block which comprises: two first hydraulic connections for connecting to the two hydraulic connections of the steering cylinder; at least two second hydraulic connections for supplying hydraulic oil from the hydraulic pump to the steering block and feeding the hydraulic oil back into the hydraulic tank; and a controllable valve assembly which receives control signals from a steering angle detection device and is designed to convey hydraulic oil to the steering cylinder on the basis of said control signals; the controllable valve assembly being further designed to be shiftable into at least one neutral position in which it allows a flow of hydraulic oil between the two chambers of the steering cylinder. The hydraulic steering system further comprises a pump device which is designed to stimulate the flow of hydraulic oil between the two chambers of the steering cylinder when the valve assembly is in the neutral position.
HYDRAULISCHES LENKSYSTEM
HYDRAULIC STEERING SYSTEM
SYSTÈME DE DIRECTION HYDRAULIQUE
2019-08-21
Patent
Electronic Resource
German
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
Betriebsverfahren für ein hydraulisches Servo-Lenksystem und hydraulisches Servo-Lenksystem
European Patent Office | 2024
|Hydraulisches Lenksystem für eine landwirtschaftliche Arbeitsmaschine
European Patent Office | 2024
|