Patent ID: 6478304
Filing Date: 2002-11-12
Classification: F01D,F16J

Abstract:
A sealing ring for non-hermetic fluid seals, the sealing ring comprising:at least one circular sealing rib having an exposed smooth sealing surface over a greater part of an outer periphery of the sealing rib, the sealing surface in operation forming a flow restriction with a running-in surface situated radially opposite to the sealing surface; and at least one cutting element arranged on the outer periphery of the sealing rib, the at least one cutting element projecting radially and axially from the exposed smooth sealing surface of the sealing rib, wherein the at least one cutting element is composed of one of hard metal, ceramic-coated metal or ceramic and is connected to the sealing rib by at least one of a positive interlocking and bonded connection.