Lenksteuereinrichtung für mehrere lenkbare Achsen.

摘要

A hydraulic steering system is provided including a hydraulic steering unit (3) provided with a housing (6) having an inlet port (7), an outlet port (8), and a pair of control ports L and R. A measuring part (fluid meter) (19) includes an internally-toothed gear member (21) disposed in the housing, and an externally-toothed gear (22) disposed within the gear (21) to be in engagement therewith and have orbital and rotational movement therein. A changeover valve (9) controls the flow of fluid to and from the ports and through the measuring port. An input shaft (13) actuates the changeover valve (9), and an output shaft (24) is actuated by the torque out of the measuring part (19). A steering wheel (1) is connected by means of a steering column (2) to the input shaft (13) of the steering unit (3). A front wheel steering wheel is connected to the measuring part (19) by means of the output shaft (24), while the pair of control fluid ports L and R are connected to a rear wheel steering cylinder (58), through a changeover valve (57).