Flow control arrangement

Details Flow control arrangement Flow control arrangement

2008-04-15

2010-10-12

Kershteyn, Igor (Department: 3745)

Rotary kinetic fluid motors or pumps

With means for re-entry of working fluid to blade set

To opposite face of blade

C415S145000, C415S914000

Reexamination Certificate

active

07811049

ABSTRACT:
A flow control arrangement is provided for a gas turbine engine in which an inlet slot is positioned prior to a stationary structure such as a stator or pylon in order that air flow is bled or removed from a mainflow. The removed air passes through a passage duct and is re-injected through an outlet nozzle with an askew angle consistent with an angle of rotor blades of a turbine. In such circumstances, distortion in the flow due to the stationary structure is relieved such that there is less instability downstream from that structure.

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Hathaway, “Self-Recirculating Casing Treatment Concept for Enhanced Compressor Performance,” NASA/TM—2002-211569, pp. 1-10, Jul. 2002.

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