Siemens Westinghouse Power Corporation

Steven Wayne Dowman

Raymond Scott Nordlund

Kent Goran Hultgren

Ricky Lee Smith

Brian Charles Owen

A gas turbine engine having an exhaust casing that includes a plurality of fairings that shield struts that are affixed to and extend between concentric rings. Each fairing has a moveable tail section that is adjusted during turbine operation to change the angle of attack of the exhaust gases to minimize vortex shedding and the corresponding vibrations that result.

Variable exhaust struts shields

A closed-loop cooling scheme for cooling stationary combustion turbine components, such as vanes, ring segments and transitions, is provided. The cooling scheme comprises: (1) an annular coolant inlet chamber, situated between the cylinder and blade ring of a turbine, for housing coolant before being distributed to the turbine components; (2) an annular coolant exhaust chamber, situated between the cylinder and the blade ring and proximate the annular coolant inlet chamber, for collecting coolant exhaust from the turbine components; (3) a coolant inlet conduit for supplying the coolant to said coolant inlet chamber; (4) a coolant exhaust conduit for directing coolant from said coolant exhaust chamber; and (5) a piping arrangement for distributing the coolant to and directing coolant exhaust from the turbine components. In preferred embodiments of the invention, the cooling scheme further comprises static seals for sealing the blade ring to the cylinder and flexible joints for attaching the blade ring to the turbine components.

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Orlando, FL, United States of America

Steven Wayne Dowman