Patent ID: 6464453
Filing Date: 2002-10-15
Classification: F01D,F05D,Y02T

Abstract:
An interstage sealing ring for sealing a space between a pair of adjacent turbine rotors of a multi-stage turbine, said sealing ring comprising:a substantially disk-shaped body member having first and second axially-spaced, substantially radially-outwardly-extending arms; a substantially axial forward arm carried by the first radial arm, the forward arm including a forward disk engagement member that includes a forward disk engagement surface for engagement with a first turbine rotor; and a substantially axial aft arm carried by the second radial arm, the aft arm having an aft disk engagement member that includes an aft engagement surface for engagement with a second turbine rotor that is spaced axially from the first turbine rotor, the interstage waling ring defining a bridging member extending between adjacent turbine rotors to confine cooling air that flows into a space between the adjacent turbine rotor disks so the cooling air flows into cooling air passageways within turbine rotor blades carried by the rotors wherein at least one of the forward arm and the aft harm includes at least one projection for engagement with an adjacent turbine rotor to limit relative rotation between the sealing ring and the adjacent turbine rotor.