Fluid reaction surfaces (i.e. – impellers) – Rotor having flow confining or deflecting web – shroud or... – Axially extending shroud ring or casing
Patent
1976-09-28
1978-03-21
Powell, Jr., Everette A.
Fluid reaction surfaces (i.e., impellers)
Rotor having flow confining or deflecting web, shroud or...
Axially extending shroud ring or casing
416 11, 416121, F03D 102
Patent
active
040801004
ABSTRACT:
A wind motor having a double set of rotor blades of special configuration mounted between a central hub and an outer rim. The front rotor has an extending shroud protruding well in front of the blades for capturing the prevailing wind. The center of the rotor is solid with the blades at the center being configured so as to be substantially at right angles to the wind flow and thus form a substantially solid area at the center of the rotor. The specially configured blades angle away from the center hub with a backward tilt of approximate 10.degree.. Also, the blades twist so that the portion attached to the rim or shroud of the device present an air foil effect with tip structure for the leading edge being approximately 45.degree. from the axis while the trailing edge is similarly at approximately a 45.degree. angle in the opposite plane. The second rotor structure has similarly configured blade structure with one embodiment of the device providing the second rotor on the same shaft as the first rotor, while another embodiment has the second rotor mounted on another tubular member from the shaft on which the first rotor is mounted and also provided for rotation counter in direction to the rotation of the first rotor. An enlarged rim shroud structure is also provided with the second embodiment to enable wind flow to be directly applied to the second rotor in addition to the exhaust from the first rotor. Another feature of the first embodiment is the mounting of the pivotal support for the wind motor directly under the front rotor thus eliminating any need for a tail to hold the device directly into the wind. Appropriate power takeoff structure is also provided for each of the embodiments.
REFERENCES:
patent: 327370 (1885-09-01), Williams
patent: 1707235 (1929-04-01), Sargent
patent: 2137559 (1938-11-01), Algee
patent: 2302054 (1942-11-01), Putt
Jacobson Harvey B.
O#Brien Clarence A.
Powell Jr. Everette A.
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