Egypt Silk Mill 62pi wind turbine ~ core

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This model adapts the basic wing geometry of the 55 humpback wind turbine, (of 21 January 2011),

to a bounded six winged design intended to sync with the wind when its wing tips are traveling at 2pi times the wind's speed .

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The wings are here encircled by a ring .

These would rotate as a single assembly, (shown at right), within a streamlined housing, (shown with the assembly at left) .

The ring would be held within the housing by eighteen rollers, (six sets of three), evenly spaced within the housing's perimeter .

Power might either be collected by hydraulic pumps linked to six of these ~

to turn an automatic transmission and by it a generator in the support structure base ~

or, by alternators linked to these rollers .

I imagine the second rollers in each set linked to cooling systems for the bearings,

(of the rollers, and as well for the pumps or alternators) ;

and the third in each set linked to brakes, (for maintenance and over-speed protection) .

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The wings do not reach from center, but from an inner ring with a radius of slightly more than 1 .

It is such in parts of caprice and convenience, but at this may be well .

Though it gives up some low-speed, low-torque lift area, it also lowers wind-frontal area,

taking some stress off the delicate links between the wing tips and the ring ;

and perhaps encouraging more airflow through, rather than around, the turbine as a whole .

It also seems possible that this may provide, (in large-scale models, if developed), as safe passage lane for birds .

Bringing the wing tips to a ring, (which i have seen in another, five winged, design), should offer full relief from tip vortices .

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Though the housing is shown unadapted for the needed support structure ;

implicit in the design is the removal of a conventional tower from behind the turning wings .

This offers the advantage of the wings' not having to cross periodically through the bow wave of the tower,

with the uneven power, wear and noise such can bring .

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There is potential for water, dust, debris and insects to enter the housing through the gap between it and the ring .

Weep holes at the bottom of the housing can drain the water, and soft brushes, similar to those used to clean LPs,

offer a way to mitigate accumulation of dust and debris, (and to reduce wind noise in the gap) ;

but it seems likely this design will need regular cleaning and occasional bee/wasp removal .