Fluid reaction surfaces (i.e. – impellers) – Cupped reaction surface normal to rotation plane – Torque converters
Patent
1980-06-02
1981-03-10
Powell, Jr., Everette A.
Fluid reaction surfaces (i.e., impellers)
Cupped reaction surface normal to rotation plane
Torque converters
416178, 416236R, F03D 306
Patent
active
042550858
ABSTRACT:
A windmill is disclosed, the windmill including a vertical shaft mounted for rotation about its longitudinal axis, a number of blades spaced circumferentially around the longitudinal axis, and being disposed generally parallel to the axis of rotation of the vertical shaft, and supporting arms extending radially outwardly from the vertical shaft for supporting the blades. The windmill also includes a first member connected to an upper end of one of the blades and defining a first surface having a leading edge with respect to the direction of movement of the blade and a trailing edge rearward of the leading edge, the leading edge being lower than the trailing edge. The first surface also includes an inside lateral edge and an outer lateral edge spaced radially outwardly from the inside lateral edge, the inside lateral edge being higher than the outer lateral edge. A second member is connected to the lower end of the blade and defines a second surface, the second surface having a leading edge with respect to the direction of movement of the blade and a trailing surface rearward of the second surface leading edge, the second surface leading edge being higher than the trailing edge. The second surface also includes an inside lateral edge and an outer lateral edge spaced radially outwardly from the second surface inside lateral edge, the second surface inside lateral edge being lower than the second surface outside lateral edge.
REFERENCES:
patent: 457384 (1891-08-01), Stoner
patent: 1011618 (1911-12-01), Harper
patent: 3193185 (1965-07-01), Erwin et al.
patent: 4105363 (1978-08-01), Loth
patent: 4147472 (1979-04-01), Kling
patent: 4178127 (1979-12-01), Zahorecz
patent: 4204805 (1980-05-01), Bolie
patent: 4209281 (1980-06-01), Edmunds
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