Patent ID: 8353382

Claim:
Power steering assembly ( 20 ) for a hydraulic power steering system of motor vehicles, comprising at least one hydraulic servo valve with a control element ( 26 ) for controlling the steering support dependent upon the relative rotation of the input shaft ( 22 ) relative to the output shaft ( 28 ), at least two planetary gear trains ( 30 , 40 ) for transmitting the rotary movement of the input shaft ( 22 ) or the output shaft ( 28 ) onto the control element ( 26 ) wherein a first functional element, respectively, of the one planetary gear train ( 40 ) is connected to the input shaft ( 22 ) or the output shaft ( 28 ), and a first functional element of the other planetary gear train ( 30 ) is non-rotatably connected to the control element ( 26 ), and a second functional element, respectively, is provided for coupling the planetary gear trains ( 30 , 40 ), and at least one actuator ( 50 ) for the relative adjustment of the control element ( 26 ) relative to the input shaft ( 22 ) or the output shaft ( 28 ) in order to influence the steering support characteristic, wherein the at least one actuator ( 50 ) is disposed and configured in such a way that it causes an equidirectional rotation with simultaneous relative rotation of at least two respective third functional elements of the planetary gear trains ( 30 , 40 ) relative to one another.