Patent ID: 9598981
Date: 2017-03-21
CPC Classifications: F01D,F02K,F05D

Claim:
1. An industrial gas turbine exhaust system, comprising: an inner exhaust case with a tubular-shape having an outer circumferential surface; an outer exhaust case with a tubular-shape, having an inner circumferential surface of the outer exhaust case, which circumscribes an outer circumferential surface of the inner exhaust case in nested, spaced relationship relative to an axial centerline defined by the industrial gas turbine exhaust system, the nested outer and inner exhaust cases defining respective inlet and exhaust ends thereof; a plurality of struts interposed between the inner circumferential surface of the outer exhaust case and the outer circumferential surface of the inner exhaust case; a turbine exhaust path, defined between respective inlet and exhaust ends of the inner circumferential surface of the outer exhaust case and the outer circumferential surface of the inner exhaust case; and a modular annular-shaped outer diameter stiffening ring (OD ring), coupled to the inlet end of the outer exhaust case, having: