Repercussion device for hydraulic servo valve arrangement particularly for road vehicle servo steering, has two operating parts rotating relative to each other and operating hydraulic regulating valve

摘要

Particularly for road vehicle servo steering, the hydraulic servo valve arrangement has a repercussion device which has two operating parts (1,2) rotating relatively to each other. The parts operate a hydraulic regulating valve (15) dependent upon their relative rotation. The one operating part (2) partly engages over the other (1) coaxially and in the overlap area (7) radial guides (11) are formed on one (1) of the parts. The operating parts in the overlap area have contact zones which locate on each other at a predetermined maximum limit relative rotation and prevent further relative rotation.