David O Kirk

US Patent:

8388308, Mar 5, 2013

Filed:

Oct 30, 2007

Appl. No.:

11/928199

Inventors:

Apostolos Pavlos Karafillis - Arlington MA, US
Kalyanasundaram Muruganathan - Karnataka, IN
Samuel Rulli - Gloucester MA, US
David Cory Kirk - Memphis TN, US
Donald Charles Slavik - Cincinnati OH, US
Erich Alois Krammer - West Chester OH, US
Manish Kumar - Karnataka, IN

Assignee:

General Electric Company - Schenectady NY

International Classification:

F01B 25/00

US Classification:

415145, 4151691

Abstract:

A system for asymmetric flow extraction is described and claimed, the system comprising a flow path, a bleed slot in the flow path, a bleed cavity for receiving at least a portion of the fluid extracted from the flow path and a bleed passage in flow communication with the bleed slot and the bleed cavity wherein the bleed passage has at least one deflector having a shape such that the width of the bleed passage cross section varies in a direction normal to the direction of fluid flow in the bleed passage. In another embodiment, the deflector has an aerodynamic surface having a shape such that the flow passage between the aerodynamic surface and a surface located away from it has a cross sectional shape that is non-axisymmetric. In another embodiment, the bleed passage comprises an assembly of a plurality deflectors, arranged circumferentially.