Radial Sealing System

A sealing assembly for the limitation of fluid flow along a rotatable shaft that is passed through a housing member that separates a high pressure side and a low pressure side, wherein the sealing assembly comprises:

• a rotor connected to the rotatable shaft, and with a sealing surface which essentially extends radially in relation to the shaft,
• a flushing sealing system that extends between the rotor and the housing member, which sealing system is in contact with both the housing member and the sealing surface of the rotor to provide a sealing effect, wherein the flushing sealing system comprises an elastic sealing member that in use imposes a pressing force directed to the sealing surface, and
• a transport groove pattern with at least one running groove with a driving edge and in fluid connection with the high-pressure side and the low-pressure side, provided in the sealing surface of the rotor, wherein the sealing member forms a fluid leak path together with the transport groove pattern for flushing of the sealing system for the purpose of forming a hydrodynamic protective fluid film for the sealing assembly and to reduce pressure from the high-pressure side to the low-pressure side,
• wherein a transport groove in the transport groove pattern, in cross-sectional view, has gradual transitions to the sealing surface and the sealing member is elastically formable so that during operation, the sealing member at least partially extends into the transport groove in order to suppress the fluid leak through the fluid leak path.