Contact seal for turbomachines running at high speed and/or having high temperatures in the sealing region

Claim 1

A contact seal for a turboengine including a sealing region and running at high speed and/or having high temperatures in said sealing region, which contact seal is fastened nonpositively or positively between two adjacent working spaces of said turboengine which have different pressure conditions, so as to seal off said working spaces from one another, for this purpose bears on a sealing face of one of the working spaces and lifts off from the sealing face at a rotational speed above a predetermined operating point, wherein a) the contact seal is of at least two-part design and comprises a thin carrier ring and a sealing ring, b) the sealing ring comprising a wear resistant and sufficiently oil and heat resistant material, c) the carrier ring comprising an elastic material which is completely reversible under high loads, and has an inner fastening part and an outer carrying part, d) the carrying part is positively connected to the sealing ring, e) when the contact seal is in the mounted state, at least the carrying part is designed to be inclined in the direction of the sealing face.