Patent ID: 8052151
Filing Date: 2011-11-08
Classification: F16J,F16L,Y10S

Abstract:
1. The combination of a rotatable hollow shaft designed to route flow-through of a fluid and having an end section, a sealing arrangement, and a non-rotatable component having a cavity for further routing the flow-through of the fluid beyond the sealing arrangement, the end section of the shaft being arranged in the cavity, the sealing arrangement comprising a gasket located between an end section at the end of the shaft and the component, the gasket comprising a sealing lip acting against an outer peripheral surface of the end section of the shaft to dynamically seal between the rotatable shaft and the gasket, the gasket comprising an outer surface which statically seals between the gasket and an inner surface of the cavity of the non-rotatable component, an axially projecting portion of the gasket projecting axially beyond the end of the shaft, a mesh screen extending completely across an inner bore of the gasket which filters the flow-through of the fluid and a restrictor which determines a flow cross-section of the flow-through of the fluid, the mesh screen and the restrictor being disposed within the inner bore of the gasket and surrounded by the axially projecting portion of the gasket, the shaft being rotatable within the gasket, the restrictor and the mesh screen being located at different axial positions relative to one another, wherein the mesh screen is disposed axially between, and engages, the restrictor and a radially inwardly projecting portion of the gasket to be retained within the gasket.