Fluid reaction surfaces (i.e. – impellers) – Rotor having flow confining or deflecting web – shroud or... – Axially extending shroud ring or casing
Reexamination Certificate
2011-02-15
2011-02-15
Look, Edward (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Rotor having flow confining or deflecting web, shroud or...
Axially extending shroud ring or casing
Reexamination Certificate
active
07887297
ABSTRACT:
An airfoil array includes a laterally extending endwall56with a series of airfoils such as28, or38projecting from the endwall. The airfoils cooperate with the endwall to define a series of fluid flow passages74. The endwall has a hump84toward a pressure side of the passage and a less elevated profile toward a suction side of the passage for reducing secondary flow losses.
REFERENCES:
patent: 2735612 (1956-02-01), Hausmann
patent: 2918254 (1959-12-01), Hausammann
patent: 3890062 (1975-06-01), Hendrix et al.
patent: 4194869 (1980-03-01), Corcokios
patent: 4465433 (1984-08-01), Bischoff
patent: 6190128 (2001-02-01), Fukuno et al.
patent: 6283713 (2001-09-01), Harvey et al.
patent: 6419446 (2002-07-01), Kvasnak et al.
patent: 6478539 (2002-11-01), Trutschel
patent: 6561761 (2003-05-01), Decker et al.
patent: 6669445 (2003-12-01), Staubach et al.
patent: 6969232 (2005-11-01), Zess et al.
patent: 2006/0127220 (2006-06-01), Lee
patent: 2006/0140768 (2006-06-01), Tam et al.
patent: 2006/0153681 (2006-07-01), Lee et al.
Sauer et al (2000), “Reduction of Secondary Flow Losses in Turbine Cascades by Leading Edge Modifications at the Endwall”,ASME2000-GT-0473, pp. 1-10.
Morris et al (1975), “Secondary Loss Measurements in a Cascade of Turbine Blades with Meridional Wall Profiling”,ASME75-WA/GT-30.
Atkins (1987), “Secondary Losses and End-Wall Profiling in a Turbine Cascade”I Mech. EC255/87, pp. 29-42.
Allen-Bradley Eunice
Grover Eric A.
Praisner Thomas J.
Wagner Joel H.
Carlson & Gaskey & Olds PC
Look Edward
United Technologies Corporation
Younger Sean J
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