Daimler Chrysler Ag

Mercedes-benz Aktiengesellschaft

Thyssenkrupp Presta Ag

Manfred Rombold

Arno Rohringer

Alexander Kiforiuk

Peter Kenez

Thomas Lubojatzky

Krisztian Rath

In a steering reaction force control arrangement for a hydraulic servo valve of a power steering system including a rotary spool rotatable received in a control sleeve and having a portion with axially extending V-shaped grooves disposed within a sleeve structure connected, by a conical engagement structure, to the control sleeve, the sleeve structure has radial bores receiving force transmitting balls which are pressed into the V-shaped grooves by a controllable hydraulic pressure so that the rotary spool can be moved relative to the control sleeve only upon the transmission of a torque sufficient to lift the force transmitting balls against the force of the hydraulic fluid by which they are pressed into the grooves.

Steering reaction force control arrangement for a power steering servo

In a servo valve arrangement for hydraulic power assisted steering systems in motor vehicles comprising a rotary spool connected to a steering shaft and a control sleeve receiving the rotary spool so as to permit some relative rotation between the control sleeve and the rotary spool, an axial endpiece is coupled to the rotary sleeve for rotation therewith by an articulated joint structure so as to accommodate any misalignment in the steering system.

Servo valve arrangement

Growing community of inventors

Winnenden, Germany

Manfred Rombold