Patent ID: 9644497
Date: 2017-05-09
CPC Classifications: F01D,F05D

Claim:
1. An industrial gas turbine exhaust system, for coupling to a turbine section of an industrial gas turbine engine apparatus, downstream of a last downstream row of blades in the turbine section, comprising: an outer exhaust case with a tubular-shape, having an inlet end for coupling to a turbine section of an industrial gas turbine engine apparatus downstream of a last downstream row of blades in the turbine section, and an exhaust end, having: an inner exhaust case with a tubular-shape, having a contiguous outer circumferential surface circumscribed by the inner circumferential surface of the outer exhaust case in nested, spaced relationship relative to axial centerline of the outer exhaust case, the contiguous outer circumferential surface of the inner exhaust case having: 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; and a splined, continuous curve tail cone, having: a turbine exhaust path, defined between respective inlet and exhaust ends of the inner circumferential surface of the outer exhaust case and the respective outer circumferential surfaces of the inner exhaust case and the splined, continuous curve tail cone.