Siemens Energy, Inc.

Frank Tsai

Yevgeniy P Shteyman

James S Marshall

Scott W Smith

A gas turbine case is provided including an outer case surface, and a channel portion formed as a recessed area extending radially inwardly into the outer case surface. The channel portion extends about a circumference of the case. An outer flow jacket is attached to the outer case surface and extends over the channel portion to define an enclosed cooling passage along the outer case surface. At least one inlet passage and at least one outlet passage are provided in fluid communication with the enclosed cooling passage to convey air to and from the cooling passage.

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Orlando, FL, United States of America

Frank Tsai