Dmper valve arrangement.

摘要

The servo motor is of the hydrostatic or a hydraulic positive-displacement type. It also acts as a steering damper, the damping valve being incorporated in the piping between the servo motor and servo valve and having a controlled and throttled passage (25,26). A bypass (33) with an adjustable throttling resistance is parallel to this passage. A supporting component in the form of a perforated disc (23) can be provided, having a central axial spigot (29). The spigot forms a mounting for spring-loaded valve plates (31) controlling the holes in the disc and which form flow passages, and also has an axial passage through it forming the bypass. A throttling component (34) leaves a calibrated gap (36) free at one end of the bypass.