Propeller or a set of wings for a wind mill

Details Propeller or a set of wings for a wind mill Propeller or a set of wings for a wind mill

1976-11-09

1978-06-06

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Irregular, flanged or channel forming blade surface

416191, F03D 106

Patent

active

040934020

ABSTRACT:
A propeller for a wind mill comprising a rotable supported hub with at least one mainly radially extending blade having a cross section in the shape of a "wing profile", each blade being provided with at least one auxiliary blade with a cross section in the shape of wing profile and being positioned such that said auxiliary blade will generate a "ventury effect" by which a part of the fluid, which normally should pass outside the propeller disc area, is drawn into the propeller.

REFERENCES:
patent: 2361676 (1944-10-01), Baker
patent: 3527544 (1970-09-01), Allen

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