Patent ID: 7159399

Claim:
A system for rendering a hydraulic actuating device operational, with an emitter-receiver system ( 5 ) located in a hydraulic transmission path of the actuating device which comprises emitter and receiver pistons ( 14 , 16 ) whose positions, relative to one another, can vary as a function of a desired operating behavior of the hydraulic actuating device, the emitter piston ( 14 ) and the receiver piston ( 16 ) being located in a cylinder so that the emitter add the receiver pistons can move axially relative to one another and, together with an inside wall of said cylinder, define a filling space at a boundary of which is positioned a filling opening ( 23 ) for a fluid such that a volume constancy is ensured, with a hydraulic supply and with a fluid supply unit ( 24 ) to the emitter-receiver system ( 5 ), which comprises at least one valve ( 25 ) serving to deliver an essentially constant volume flow, which is acted upon by a control device ( 26 ) such that the volume flow released by the fluid supply unit ( 24 ), of fluid flowing into the emitter-receiver system ( 5 ), does not exceed a limiting volume flow (Q K ), wherein the at least one valve ( 25 ) is controlled by impulses from the impulse control device ( 26 ) land a hydraulic line branch ( 34 ) is in the fluid supply unit ( 24 ) to which at least one further equalization impulse valve ( 32 , 33 ) is connected downstream from the line branch ( 34 ) to allow a flow of the fluid from the at least one valve ( 25 ) to a collection tank ( 37 ) to regulate a pressure at the line branch ( 24 ) for filling of the filling space.