초록 ▼

A unitary interstage sealing ring for bridging and sealing the space between the blade shanks of adjacent turbine rotors in a multi-stage turbine. The sealing ring serves to confine relatively cool air conveyed to the turbine so the cooling air flows into the turbine blades for maintaining the blade

A unitary interstage sealing ring for bridging and sealing the space between the blade shanks of adjacent turbine rotors in a multi-stage turbine. The sealing ring serves to confine relatively cool air conveyed to the turbine so the cooling air flows into the turbine blades for maintaining the blades at a desired temperature. The sealing ring includes a disk-shaped body member that includes a pair of axially-spaced, radially-extending arms that terminate in respective seal teeth for engagement with a stationary annular sealing member. Each of the radial arms includes an outwardly-extending axial arm that terminates in a disk engagement member for sealing engagement with the face of an adjacent turbine disk to confine cooling air within the space between the adjacent turbine disks. Additionally, one of the disk engagement members includes at least one, projection that contacts a respective turbine rotor to limit relative rotation between the sealing ring and the turbine.

대표청구항 ▼

1. 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 fo

1. 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.