Rotary kinetic fluid motors or pumps – Bearing – seal – or liner between runner portion and static part – Between blade edge and static part
Reexamination Certificate
2006-10-13
2010-10-26
Verdier, Christopher (Department: 3745)
Rotary kinetic fluid motors or pumps
Bearing, seal, or liner between runner portion and static part
Between blade edge and static part
C415S176000, C415S178000, C415S914000
Reexamination Certificate
active
07819626
ABSTRACT:
A gas turbine engine plasma blade tip clearance control system includes an annular shroud surrounding rotatable blade tips and an annular plasma generator spaced radially outwardly and apart from the blade tips. An exemplary embodiment of the annular plasma generator is mounted to the annular shroud and includes radially inner and outer electrodes separated by a dielectric material disposed within an annular groove in a radially inwardly facing surface of the annular shroud. The plasma generator is operable for producing an annular plasma between the annular shroud and blade tips and an effective clearance produced by the annular plasma between the annular shroud and blade tips that is smaller than a clearance between the annular shroud and blade tips.
REFERENCES:
patent: 5100291 (1992-03-01), Glover
patent: 7503179 (2009-03-01), Estridge et al.
patent: 7597537 (2009-10-01), Bucaro et al.
patent: 2006/0005545 (2006-01-01), Samimy et al.
patent: 1906136 (2008-09-01), None
patent: WO2005/114013 (2005-12-01), None
European Search Report and Opinion, Application No. EP07254056, Mar. 12, 2009, 10 pages.
AIAA 2007-647, Stereo PIV of a Turbine Tip Clearance Flow with Plasma Actuation, Daniel K. Van Ness II, Thomas C. Corke, and Scott C. Morris, 22 pages.
AIAA 2006-20, “Turbine Blade Tip Leakage Flow Control by Partial Squealer Tip and Plasma Actuators”, Travis Douville, Julia Stephens, Thomas Corke, and Scott Morris, 18 pages.
AIAA 2005-782, “Tip Clearance Control Using Plasma Actuators”, Scott C. Morris, Thomas C. corke, Daniel Van Ness, Julia Stephens, and Travis Douville, 8 pages.
XP007907306, “Active Flow Control in Turbomachinery Using Phased Plasma Actuators”, B. Goksel and I. Rechenberg, 2 pages.
XP009112404, “Turbine Tip Clearance Flow Control using Plasma Actuators”, Daniel K. Van Ness II, Thomas Co. Corke, and Scott C. Morris, 12 pages.
Science Direct, “SDBD plasma enhanced aerodynamics: concepts optimization and applications”, Thomas C. Corke, Martiqua L. Post, and Dmitry M. Orlov, 26 pages.
XP007907356, “Plasma (physics)”, From Wikipedia, 16 pages.
XP007907353, “Dielectric barrier discharge”, From Wikipedia, 2 pages.
“Overview of Plasma Flow Control: Concepts, Optimization, and Applications”, Thomas C. Corke and Martiqua L. Post, 43rd AIAA Aerospace Sciences Meeting and Exhibit, Jan. 10-13, 2005, Reno, Nevada, AIAA 2005-563, 15 pages.
“Plasma Control of Boundary Layer Using Low-Temperature Non-Equilibrium Plasma of Gas Discharge”, D.F. Opaits, D.V. Roupassov, S.M. Starikovskaia, A.Yu. Starikovskii, I.N. Zavialov, and S.G. Saddoughi, 43rd AIAA Aerospace Sciences Meeting and Exhibit, Jan. 10-13, 2005, Reno, Nevada, AIAA 2005-1180, 6 pages.
“Demonstration of Separation Delay With Glow-Discharge Plasma Actuators”, Lennart S. Hultgren and David E. Ashpis, 41st AIAA Aerospace Sciences Meeting and Exhibit, Jan. 6-9, 2003, Reno, Nevada, AIAA 2003-1025, 10 pages.
“Unsteady Plasma Actuators for Separation Control of Low-Pressure Turbine Blades”, Junhui Huang, Thomas C. Corke and Flint O. Thomas, AIAA Journal, vol. 44, No. 7, Jul. 2006, pp. 1477-1487.
“Control of Separation in Turbine Boundary Layers”, R.B. Rivir, R. Sondergaard, J.P. Bons, and N. Yurchenko, 2nd AIAA Flow Control Conference, Jun. 28-Jul. 1, 2004, Portland, Oregon, 16 pages.
“Plasma Flow Control Optimized Airfoil”, Thomas C. Corke, Benjamin Mertz, and Mehul P. Patel, 44th AIAA Aerospace Sciences Meeting and Exhibit, Jan. 9-12, 2006, Reno, Nevada, AIAA 2006-1208, 13 pages.
“Control of Transitional and Turbulent Flows Using Plasma-Based Actuators”, Miguel R. Visbal, Datta V. Gaitonde, and Subrata Roy, 36th AIAA Fluid Dynamics Conference and Exhibit, Jun. 5-8, 2006, San Francisco, California, AIAA 2006-3230, 22 pages.
“AC and Pulsed Plasma Flow Control”, R. Rivir, A. White, C. Carter, B. Ganguly, J. Jacob, A. Forelines, and J. Crafton, 42nd AIAA Aerospace Sciences Meeting and Exhibit, Jan. 5-8, 2004, Reno, Nevada, AIAA 2004-847, 9 pages.
“Effects of Plasma Induced Velocity on Boundary Layer Flow”, Brian E. Balcer, Milton E. Franke, and Richard B. Rivir, 44th AIAA Aerospace Sciences Meeting and Exhibit, Jan. 9-12, 2006, Reno, Nevada, AIAA 2006-875, 12 pages.
“Flow Control Using Plasma Actuators and Linear / Annular Plasma Synthetic Jet Actuators”, Arvind Santhanakrishan, Jamey D. Jacob, and Yildirim B. Suzen, 3rd AIAA Flow Control Conference, Jun. 5-8, 2006, San Francisco, California, AIAA 2006-3033, 31 pages.
“Turbulent Drag Reduction by Surface Plasma through Spanwise Flow Oscillation”, Timothy N. Jukes, Kwing-So Choi, Graham A. Johnson, and Simon J. Scott, 3rd AIAA Flow Control Conference, Jun. 5-8, 2006, San Francisco, California, AIAA 2006-3693, 14 pages.
Carson Scott Michael
Cherry David Glenn
Lee Ching-Pang
Wadia Aspi Rustom
Andes William Scott
General Electric Company
Rosen Steven J.
Verdier Christopher
LandOfFree
Plasma blade tip clearance control does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Plasma blade tip clearance control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Plasma blade tip clearance control will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4177116