초록

A combustion turbine engine having an improved variable-area turbine stator assembly.

대표청구항 ▼

Apparatus comprising: first annularly arrayed substantially immovable stator vane means for directing a flow of motive fluid onto a turbine wheel, said stator vane means being circumferentially spaced apart to substantially define a flow path therebetween having a determined flow area; second annula

Apparatus comprising: first annularly arrayed substantially immovable stator vane means for directing a flow of motive fluid onto a turbine wheel, said stator vane means being circumferentially spaced apart to substantially define a flow path therebetween having a determined flow area; second annularly arrayed guide vane means movably interdigitating with said stator vane means for selectively reducing the area of said flow path to an area which is less than said determined area; said stator vane means extending radially between concentrically arranged radially inner and radially outer portions of a housing, said housing portions cooperating the annularly bound said flow path therebetween, said motive fluid flowing axially along said flow path, said radially outer portion defining a multitude of radially extending apertures opening to said flow path, said apertures movably receiving said guide vane means; said housing further defining annularly arrayed radially extending storage means communicating respectively with said multitude of apertures for receiving said guide vane means out of said flow path during flow of said motive fluid; and mechanical actuator means for moving said guide vane means between (1) a position wherein said guide vane means are disposed within said flow path to interdigiate with said stator vane means and extend radially between said radially inner and radially outer housing portions, and (2) a position wherein said guide vane means are disposed within said storage means and removed from said flow path.