Abstract: A steering system and more particularly to a rack-and-pinion assembly, in particular for a rack-and-pinion steering assembly for motor vehicles having an input shaft axis arranged at a distance from the rack axis which is greater than the diameter of a pinion meshing with the rack. Preferably, this pinion is arranged between the rack and an input pinion distant from the latter, on an input shaft of the gear.

Abstract: A device for reducing the steering angle of a rack and pinion steering system for motor vehicles, having a rack which is located between the tie-rods of the wheels to be steered, is connected to these tie-rods, is mounted displaceably in a housing and has radially thickened connecting regions between the ends of the rack and the respectively adjacent tie-rod in which the thickened regions limit the steering angle by striking against the rack housing, is intended to be of simple construction and to be easily retrofitted. In particular, retrofitting is not intended to require any readjustment and measurement of the track of the steered wheels. To this end, this device includes at least two approximately U-shaped spacer clips and retaining regions on the rack adjacent the radially thickened connecting regions. The retaining regions accommodate attachment of the spacer clips with direct contact between one of the clips and a respective radial thickened region.

Abstract: A rack-and-pinion steering or control system with a servomotor, especially an electric motor, which can be coupled to the rack by way of a mechanical transmission and runs continuously in one direction is provided. The rack is designed over a certain area as a screw which interacts with a recirculating ball sleeve which can be driven in two directions of rotation by the motor. To control the direction of rotation, use is made of normally disengaged clutches which can be controlled as a function of a small displacement of the recirculating ball sleeve.

Abstract: The invention relates to a servo-assisted rack-and-pinion steering system having a helical-toothed rack and an axially movable pinion which interacts therewith and the axial movement of which controls the servomotor. The pinion is mounted on an input shaft in such a manner as to be incapable of rotation with respect to the shaft but axially movable thereon, in order to suppress the transmission of axial forces between the input shaft and the pinion.

Abstract: A servo-assisted rack-and-pinion steering system in which the rack is drive-coupled to a pinion which is mounted to move between two end positions in the longitudinal direction of the rack so that its movements control the servo motor. The end positions of the pinion are defined by two friction wheels which are driven continuously in opposite directions by the servo motor, in each case allowing an auxiliary force to be transmitted to the pinion.

Abstract: A servo-assisted rack-and-pinion steering system is provided in which the rack cooperates with a rotatable pinion. The pinion is supported in an eccentrically located opening in a circular disk rotatably mounted by rolling elements on its periphery. Pivoting movement of the pinion controls an hydraulic oil actuated servo motor. The rolling contact bearing of the disk lies in the path of flow of the hydraulic oil for the servo motor. The pinion is supported in a bearing in the opening in the disk and another bearing at an opposite side of the rack and separate from the disk.

Abstract: A servo valve arrangement with a high-pressure, low-pressure and motor connection and with a pressure control valve arranged between the high-pressure connection and motor connection and a return control valve arranged between the motor connection and low-pressure connection is provided. The pressure control valve normally is closed and the return control valve normally is open. The pressure control valve can be opened by a common actuating member whilst closing the return control valve. The valve arrangement is suitable, in particular, for hydraulic power steering systems of motor vehicles with a so-called closed center.

Abstract: A servo-assisted rack-and-pinion steering system has a helical-toothed rack and a helical-toothed pinion cooperating therewith. On the transmission of forces between the pinion and the rack, a torque relative to the longitudinal axis of the rack acts on the rack. The resulting rotation of the rack is utilized to control the servomotor via a lever arrangement.

Abstract: The invention relates to a servo control, especially a power steering for motor vehicles, with a fluidic reaction control which is designed in the manner of a rotary slide and which constitutes a component which can fundamentally be separated from a servo-valve arrangement.

Abstract: A servo control is disclosed especially for a power steering for motor vehicles. A shaft serves as an actuating member and is subdivided axially into a primary shaft and a secondary shaft. The two shaft parts are coupled elastically to one another via a torsion bar and a prestressed leg spring acting parallel thereto. Accordingly, a relative rotation adjusting a servo-valve arrangement can occur between the two shaft parts only when the shaft is loaded by a torque which exceeds the prestress of the leg spring.