Patent ID: 7028469

Claim:
Leakage compensation system in a control device for a fully hydraulic steering system with a supply connection arrangement having a high-pressure connection and a low-pressure connection, a working connection arrangement having two working connections, a control section between the supply connection arrangement and the working connection arrangement, a control element for activating the control section, a steering member and an auxiliary fluid path with a valve arrangement, through which hydraulic fluid can be supplied or drained off, characterized in that the valve arrangement (A 6 , A 7 ) of the auxiliary fluid path ( 12 ) can be activated via the control element ( 2 ); wherein the leakage compensation system is fully hydraulic; wherein the valve arrangement (A 6 , A 7 ) of the auxiliary fluid path ( 12 ) comprises means for correcting the correlation between the position of the control element ( 2 ) and the position of the steering member ( 3 ); and wherein the control section has a housing (H), and outer rotary slide (Y) arranged to be rotatable in the housing and an inner rotary slide (I) arranged to be rotatable in the outer rotary slide, wherein the valve arrangement (A 6 , A 7 ) has a throttle (A 6 ) formed between the outer slide (Y) and the housing (H) through cooperation of a throttling groove (S 1 R) and a bore ( 10 ).