Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Tined or irregular periphery
Reexamination Certificate
2008-07-30
2010-12-21
Verdier, Christopher (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Specific blade structure
Tined or irregular periphery
C416S22300B, C416S237000, C416SDIG004, C416SDIG004
Reexamination Certificate
active
07854595
ABSTRACT:
A blade for a wind turbine includes a chord of length “c” positioned with a leading edge tip chord angle and trailing edge tip chord angle of between approximately 45 and 75 degrees; a tip having a shear web plane radii distribution in the ranges ofL/c (%)R/c (%) 0-10%1.03-3.68%30-40%2.91-5.79%60-70%1.77-2.5% 90-100%0.229-.350% where “L/c” is a range of an approximate normalized location along the chord line expressed as a percentage of the chord length from a leading edge of the blade; and where “R/c” is a range of an approximate normalized shear web plane tip radius expressed as a percentage of the chord length, for each normalized location L/c.
REFERENCES:
patent: 2962260 (1960-11-01), Foley
patent: 4334828 (1982-06-01), Moffitt
patent: 4451206 (1984-05-01), Philippe et al.
patent: 4880355 (1989-11-01), Vuillet et al.
patent: 6000911 (1999-12-01), Toulmay et al.
patent: 2009/0297354 (2009-12-01), Herr et al.
patent: 2009/0297355 (2009-12-01), Herr et al.
Kinzie Kevin W.
Standish Kevin J.
Cusick Ernest G.
General Electric Company
Heinze William F.
Landgraff Frank A.
Verdier Christopher
LandOfFree
Wind turbine blade tip shapes does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Wind turbine blade tip shapes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wind turbine blade tip shapes will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4157427