Pressure compensation device

摘要

The invention relates to a pressure compensator (2) for transferring a compensation pressure (P1) via a pressure fluid (6) and with respect to an ambient pressure (P2). The pressure compensator is provided with a container (4) defining a reservoir (5) with a reservoir volume (Vr) which is arranged to containthe pressure fluid. The container comprises -a flexible container wall (8) provided with a container opening (9), -a cover (12) for closing the container opening (9),the cover (12) further comprising a discharge opening (22), the discharge opening (22) being arranged for discharging the pressure fluid from the reservoir volume (Vr) in case of a decrease of the reservoir volume(Vr), The cover (12) is provided with grooves (18)facing the reservoir volume (Vr), wherein at least a portion of the grooves (18) open into the discharge opening (22).