Rotary kinetic fluid motors or pumps – With passage in blade – vane – shaft or rotary distributor...
Patent
1994-10-11
1996-11-19
Larson, James
Rotary kinetic fluid motors or pumps
With passage in blade, vane, shaft or rotary distributor...
415175, 415157, 416 95, F01D 500
Patent
active
055756166
ABSTRACT:
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.
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Hagle Michael P.
McKay John P.
General Electric Company
Hess Andrew C.
Larson James
Scanlon Patrick R.
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