Fluid turbine

Details Fluid turbine Fluid turbine

1978-09-05

1980-11-18

Powell, Jr., Everette A.

Rotary kinetic fluid motors or pumps

With means for controlling casing or flow guiding means in...

416197A, F03D 104

Patent

active

042342899

ABSTRACT:
A fluid turbine designed for increased power output includes an annular housing provided with a semi-spherical dome for directing incoming fluid flow to impinge on a plurality of rotor blades within the housing fixed to a vertical output shaft. An angle on the order of between 5.degree.-85.degree., in the direction of rotation of the shaft, exists between the upper (leading) and lower (trailing) edges of each blade. The blades are manufactured from a plurality of aerodynamically-shaped, radially spaced ribs covered with a skin. The leading edge of each rib is curved, while the trailing edge is straight. The straight edge of the ribs in each blade approach a vertical plane through the vertical axis of the housing output shaft as the ribs progress radially inwardly towards the output shaft. The housing has fluid exit passages in its base so that deenergized fluid can be quickly flushed from the housing by the downwardly directed flow in combination with the novel blade configuration, which acts as a screw or force multiplier, to expel deenergized fluid. The airfoil shaped ribs also provide the blades with a contour for increasing the fluid velocity on the underside of the blades adjacent the fluid exit passage to aid in expelling the deenergized air while providing the turbine with both impulse and axial-flow, fluid impingement on the blades, resulting in a force vector of increased magnitude.
A downwardly directed, substantially semi-cylindrical deflector frame connected to the housing blocks the path of flow of ambient fluid to create a low pressure area beneath the base to aid in continuously drawing fluid into the housing at high velocity to impinge on the rotor blades.
The increased flow velocity and force on the blades along with the enhanced removal of deenergized fluid results in increased power output of the turbine.

REFERENCES:
patent: 7470 (1833-03-01), Deming
patent: 767080 (1904-08-01), Phillips
patent: 1169223 (1916-01-01), Abern
patent: 1652022 (1927-12-01), Lemke
patent: 1963196 (1934-06-01), Frisch
patent: 3930750 (1976-01-01), Schultz
patent: 4036916 (1977-07-01), Agsten
patent: 4057270 (1977-11-01), Lebost
patent: 4116581 (1978-09-01), Bolie

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