Fluid reaction surfaces (i.e. – impellers) – Working member supported on endless flexible carrier – Feathering blades
Patent
1985-10-22
1986-10-28
Powell, Jr., Everette A.
Fluid reaction surfaces (i.e., impellers)
Working member supported on endless flexible carrier
Feathering blades
415 5, 416119, 416197A, 416 11, F03D 502
Patent
active
046195823
ABSTRACT:
Apparatus for recovering energy from a moving fluid, comprising a frame that rolls on a circular track about a vertical upright that is secured to the ground. Vanes on the frame respond to fluid pressure to orient the frame in an upstream-downstream or upwind-downwind direction. The frame carries spaced pairs of sprocket wheels about which endless sprocket chains are trained, with flaps pivotally connected between the sprocket chains. Along the lower run of the chains, the flaps hang down and the fluid presses against them to circulate the chains. The kinetic energy of rotation of the sprocket wheels is converted to another form of energy, for example electrical energy by a generator carried by the frame. The flaps comprise pivotally interconnected frames so that they ride about the sprockets and lie flat on the upper run. Each frame contains a plurality of louver slats that let the fluid through to downstream or downwind flaps and also direct the fluid toward the center of the downstream or downwind flaps, so that the impetus of the fluid is shared among a plurality of flaps that depend from the lower run.
REFERENCES:
patent: 3804 (1844-10-01), Robinson
patent: 763623 (1904-06-01), Nance
patent: 764571 (1904-07-01), Fisher
patent: 1074059 (1913-09-01), McWolfe
patent: 1266472 (1918-05-01), Howe
patent: 1451298 (1923-04-01), Greth
patent: 1502296 (1924-07-01), Doak
patent: 1707795 (1929-04-01), Brown
patent: 4209281 (1980-07-01), Edmunds
patent: 4536125 (1985-08-01), Herman et al.
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