초록 ▼

A turbine having a radial inlet to the turbine wheel is provided with a multi-stage stator wherein the vanes of its separate stages are fixed at different angles of incidence. The stator is mounted for movement so that each of its stages may be positioned in alignment with said opening. The vanes of

A turbine having a radial inlet to the turbine wheel is provided with a multi-stage stator wherein the vanes of its separate stages are fixed at different angles of incidence. The stator is mounted for movement so that each of its stages may be positioned in alignment with said opening. The vanes of one stage of the stator are inclined relative to the inlet to produce forward rotation of the turbine wheel while those of another stage are inclined oppositely to produce reverse rotation thereof. The system includes means for positioning the stator so that the vanes of two adjacent stages thereof are located in partial alignment with the inlet opening so as to regulate the power output of the turbine to a neutral state.

대표청구항 ▼

In a turbine engine for driving a vehicle, said turbine engine consisting of a turbine housing having a free turbine wheel rotatably mounted therein, and inlet means for directing a gas radially inwardly towards said free turbine wheel, the improvement comprising: multi-stage stator vane means, said

In a turbine engine for driving a vehicle, said turbine engine consisting of a turbine housing having a free turbine wheel rotatably mounted therein, and inlet means for directing a gas radially inwardly towards said free turbine wheel, the improvement comprising: multi-stage stator vane means, said multi-stage stator vane means having a plurality of stator stages, each respective stator stage of said plurality of stator stages having respective inlet vanes set at a predetermined respective angle of incidence; mounting means mounting said multi-stage stator vane means to said inlet means for relative movement therebetween; control means operatively connected to said stator means to selectively locate any of said plurality of stator stages over said inlet means, said control means further comprising shaft means movably interconnected with said turbine housing and power actuated piston cylinder means fixedly interconnected with said shaft means to position said plurality of stator stages relative to said inlet means; and additional housing means provided between said power actuated piston cylinder means and said turbine housing, said additional housing means defining an annulus for the passage of fluid at a higher pressure than said gases in said turbine housing, to thereby provide a heat shield for said power actuated piston cylinder means.