초록 ▼

An apparatus for modulating a flow of cooling air from a compressor to a turbine in a gas turbine engine is disclosed. The apparatus includes a support member which forms a channel for receiving the cooling flow and has a throat at a downstream end with a radial orientation. A radial flow inducer is

An apparatus for modulating a flow of cooling air from a compressor to a turbine in a gas turbine engine is disclosed. The apparatus includes a support member which forms a channel for receiving the cooling flow and has a throat at a downstream end with a radial orientation. A radial flow inducer is connected to the support member adjacent to the channel downstream end for accelerating the cooling flow through the throat of the support member. Apparatus for modulating the quantity of the cooling air flowing through the throat and into the turbine is provided in the form of an axially translating endwall, wherein variation of the throat area is accomplished through modulation of the endwall with respect to the support member. The support member may also house either a stationary, unmodulated axial flow inducer or a second modulated radial flow inducer in addition to the modulated radial flow inducer.

대표청구항 ▼

An apparatus for modulating a flow of cooling air from a compressor to a turbine in a gas turbine engine, comprising: (a) a channel for receiving said cooling air from said compressor at an upstream end and supplying said cooling air to said turbine at a downstream end, said channel downstream end h

An apparatus for modulating a flow of cooling air from a compressor to a turbine in a gas turbine engine, comprising: (a) a channel for receiving said cooling air from said compressor at an upstream end and supplying said cooling air to said turbine at a downstream end, said channel downstream end having a throat oriented radially outward with respect to a centerline of said channel; (b) a radial flow inducer positioned adjacent to said throat for accelerating the flow of said cooling air therethrough; and (c) means for modulating the quantity of said cooling air flowing through said throat into said turbine.