Patent ID: 9512740
Filing Date: 2016-12-06
CPC Classification: F01D,F05D,Y10T

Claim Text:
1. An industrial gas turbine exhaust system, comprising: a turbine exhaust case (TEC) adapted for coupling to a downstream end of a turbine section of an industrial gas turbine; an inner case coupled to the TEC; an outer case circumscribing the inner case in spaced relationship relative to a common centerline defined there between, coupled to the TEC; a turbine exhaust path defined between the outer and inner cases; and a plurality of tilted struts, oriented downstream of the TEC, interposed within the turbine exhaust path between the outer and inner cases, which are tilted at an angle relative to a radius defined by the common centerline; and a circumferential profile of at least one of the inner or outer cases forming an area ruled turbine exhaust path cross section proximal the plurality of tilted struts, formed with at least a pair of opposed frusto-conical profile annular sections, in order to compensate for at least a portion of strut reduction in turbine exhaust path cross section.