Patent ID: 7128535
Filing Date: 2006-10-31
Classification: F01D,F05D,Y10T

Abstract:
1. A turbine structure for use in a gas turbine engine, comprising: a one-piece drum rotor; said drum rotor including a plurality of turbine disks welded together and having a first diameter at a leading one of said turbine disks and a second diameter at a trailing one of said turbine disks wherein said first diameter is greater than said second diameter; said drum rotor having a plurality of integrally formed knife elements and an integrally formed flange for allowing said one-piece drum rotor to be joined to an adjacent structure, said flange being located near said leading one of said turbine disks; at least one additional knife element positioned on a surface of said flange; and a plurality of turbine blades attached to said one-piece drum rotor.