Hydraulic adjusting device

A hydraulic adjusting device having a hydraulic circuit, a working chamber connected to the hydraulic circuit, the volume capacity of which can be modified by at least a pair of delimiting elements, and at least two leakage paths, of which a first leakage path runs between the delimiting elements to the working chamber and via a sealing assembly comprising a plurality of seals, the sealing assembly lying in the first leakage path, having a leakage accumulation chamber connected to the first leakage path and lies between the seals, having a transition channel connecting the two leakage paths, connected to the first leakage path via the leakage accumulation chamber lying between the seals, as well as having a conveyance device that recirculates the leakage back to the working chamber, wherein the delimiting elements can be displaced axially against one another, and are formed by a bowl body having a central dome, and a pot-shaped cylindrical piston that encompasses said bowl body, wherein the working chamber, having a modifiable volume capacity, lies axially between the central dome and the pot-shaped cylindrical piston encompassing said dome, and wherein the sealing assembly lying in the first leakage path forms the conveyance device that, dependent on the direction of the displacement of the delimiting elements acting against one another, recirculates the fluid back to the working chamber.