Servo-steering device for vehicles

摘要

A servo-steering for motor vehicles in which a steering nut is rotatably and axially non-displaceably supported in the working piston and is helically movably connected with a steering worm axially non-displaceably secured with respect to the gear housing; the axis of the steering shaft in meshing engagement with the working piston by appropriate toothed arrangements as well as the axis of the control slide valve member are disposed in the center stroke position of the working piston in a common diametric plane of the gear housing; the axis of the control slide valve member extends perpendicularly to the axis of the steering shaft and the steering shaft is provided with a single toothed segment whose tooth width at the root is disposed approximately centric to that axial plane of the gear housing which is perpendicular to the axis of the steering shaft and contains the longitudinal axis of the working cylinder; the working piston, within the area of its toothed rack profile, is provided with a radial aperture for the insertion of the steering nut, and the center axis of this aperture extends perpendicularly to the longitudinal axis of the working piston.