Abstract: A steering system having a first auxiliary branch line (23, 24) connecting a main line (6) to a return port (12); with a load line (22) connecting the first auxiliary branch line to a load port (13) and dividing the first auxiliary branch line into first (24) and second (23) flow paths. The main line includes an adjustable input throttle (20). The first flow path (24) includes an adjustable load throttle (27) and a second throttle (26) in series. The adjustable input throttle and the adjustable load throttle act in a same direction. The purpose of this control circuit is to raise the load port pressure level, so as to prevent relatively high power losses.

Abstract: A hydraulic steering apparatus comprises a throttle (10) with a bypass line, eliminating the function of the throttle (10) in the direction of the steering cylinder (2). The throttle (10) is disposed between the control valve (3) of the steering apparatus (1) and the cylinder volume of the steering cylinder (2) on the piston rod side. The throttle (10) is used in connection with hydraulic steering apparatus for slow-moving vehicles.