Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Tined or irregular periphery
Reexamination Certificate
2011-04-26
2011-04-26
Verdier, Christopher (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Specific blade structure
Tined or irregular periphery
C416S237000, C416SDIG004
Reexamination Certificate
active
07931444
ABSTRACT:
A wind turbine includes a rotor with wind turbine blades each having a root end connected to a hub of the wind turbine and a tip end, the tip end of each of which being equipped with a winglet extending a distance in a direction perpendicularly to a longitudinal direction of the blade. A new and much more slim design of the outer part of the wind turbine blade is disclosed, i.e. with a shorter chord length designed within a narrow band of values defined with respect to the length of the winglet, i.e. the extension in the direction transverse to the longitudinal direction of the blade.
REFERENCES:
patent: 4329115 (1982-05-01), Kress
patent: 5217349 (1993-06-01), Succi
patent: 6503058 (2003-01-01), Selig et al.
patent: 7540716 (2009-06-01), Wobben
patent: 1563707 (2005-01-01), None
patent: 19738278 (1999-03-01), None
patent: 19963252 (2001-07-01), None
patent: 1500814 (2005-01-01), None
patent: 2004084590 (2004-03-01), None
patent: 2004061298 (2004-07-01), None
patent: 2005078277 (2005-08-01), None
patent: 2006059472 (2006-06-01), None
patent: 2006090215 (2006-08-01), None
Johansen, Jeppe and Sorensen, Niels N. ‘Aerodynamic investigation of Winglets on Wind Turbine Blades using CFD’. Rapport nr. Riso-R-1543(EN), Feb. 2006. [fremskaffet den Aug. 20, 2007] - fremskaffet fra Intemettet <URL:http://www.risoe.dk/rispubl NEA/veapdf/ris-r-1543.pdf > 17 pages.
Danish Search Report; PA 2007 01142; Nov. 9, 2007; 2 pages.
Danish Search Report; PA 2006 01705; Aug. 23, 2007; 3 pages.
International Search Report; PCT/DK2007/000559; Oct. 8, 2008; 3 pages.
Hasegawa, Y. et al. ‘Numerical Analysis of a Horizontal Axis Wind Turbine Rotor with Winglets’, Transactions of the Japan Society of Mechanical Engineers. B vol. 62, No. 600(19960825) pp. 3088-3094 The Japan Society of Mechanical Engineers ISSN:03875016, publiceret Aug. 25, 1996, [fremskaffet den Aug. 20, 2007]—fremskaffet fra Internettet <URL:http:/
els.nii.ac.jp/els/con tents—disp.php?id=ARTOO 02698273&type----pdf&lan g=en&host--cinii&order n.
Johansen, J. et al.: “Numerical Analysis of Winglets on Wind Turbine Blades using CFD” EWEC 2007 conference, 08 maj 2007. [fremskaffet den Aug. 27, 2007]fremskaffet fra Intemettet <URL: http://www.ewec20 07proceedings.info/allfiles 2/344—Ewee2007fullpaper .pdf. 6 pages.
Shahidehpour, Mohammad et al. ‘IPRO 344—Technical and Market Integration of Wind Energy Final Report’ Ilinois Institute of Technology, efterdret 2006. [fremskaf-fet den Aug. 20, 2007] fremskaffet fra Intemettet <URL:http://www.iitedu/--ipro344f06/archive/deri vables/IPRO344F06—Final Report.pdt og tilhorende poster <URL:http://ilcnow.iit.edu/dovm1 oad.php?file=2652> og tilhorende konferencepro-gram til frernlmggelsesdag afholdt den 1. Dec. 2006 [fremskaffet den Sep. 20, 2007] <URL:http://ipro.itt.edu/home/do wnloads/iproday—f06/Fall—2006—IPRO—Day Schedule.
Shahidehpour, Mohammad et al. ‘IPRO 344—Technical and Market Integration of Wind Energy’ Illinois Institute of Technology, efterket 2006. [fremskaffet den Aug. 20, 2007]—frensjaffet fra Intemettet <URL:http://www.iit.edukipro34 4f06 /archive/derivables /IPRO344F06 FinalRepor t.pdf> og poster <URL: http://iknow.iitedu/download.php?file=2652> 2 pages.
Shimooka, M. et al. Basic Study of Winglet Effects On Aerodynamics and Aeoracoustics Using Large-Eddy Simulation' European Wind Energy Conference & Exhibition, Feb. 27-Mar. 2, 2006; 9 pages.
International Preliminary Report on Patentability & Written Opinion of the International Searching Authority; PCT/DK2007/000559; Jun. 24, 2009; 5 pages.
Godsk Kristian Balschmidt
Nielsen Thomas Steiniche Bjertrup
Eastman Aaron R
St. Onge Steward Johnston & Reens LLC
Verdier Christopher
Vestas Wind Systems A/S
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