Propeller and impeller blade configuration

Details Propeller and impeller blade configuration Propeller and impeller blade configuration

1998-12-14

2000-12-26

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Concave surface

416242, 416DIG2, B63H 126

Patent

active

061649198

ABSTRACT:
A novel concept for a propeller blade configuration incorporates the model of the natural wave behavior. The leading edge of the propeller blade is parallel to the trailing edge, but offset by a given amplitude. The surfaces between the leading and trailing edges are rounded so as to promote proper fluid sheet formation along the surface and to reduce undesirable vortice formation. Best results are obtained by modeling the surfaces along a sine or tangent function.

REFERENCES:
patent: 3128939 (1964-04-01), Szydlowski
patent: 3174681 (1965-03-01), Monroe
patent: 4124329 (1978-11-01), Romanov et al.
patent: 5575624 (1996-11-01), Bogage

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