U.S. Patent Specifications

In a gas turbine power plant, a turbine including a rotor and a surrounding casing, a housing surrounding the casing, supporting means extending between the turbine casing and the housing for supporting the casing within the housing, a thrust nozzle through which gas from the turbine is discharged, and an exhaust duct connecting the turbine to the nozzle, in combination with at least one radiation shield located between and spaced from the turbine casing and hous‐ing and surrounding the casing, the downstream end of the shield being concentric to and closely spaced from the exhaust duct to define an ejector located within the duct upstream of the thrust nozzle and communicating with the space between the shield and housing for maintaining a flow of cooling air there‐through.