Fluid reaction surfaces (i.e. – impellers) – Spiral blade or flow passage
Patent
1995-05-30
1997-07-01
Look, Edward K.
Fluid reaction surfaces (i.e., impellers)
Spiral blade or flow passage
416227A, 416DIG6, F04D 2932
Patent
active
056429843
ABSTRACT:
A helical turbine assembly capable of providing high speed unidirectional rotation under a multidirectional ultra low-head fluid flow is disclosed. The assembly comprises an array of helical turbine units or modules arranged, vertically or horizontally, to harness, for example, water or wind power. Each turbine unit or module comprises a plurality of helical blades having an airfoil profile. The modules for wind power may be mounted to rotatable shafts supported by lightweight structures anchored by guy wires to the ground. The helical turbine can also provide ship propulsion by utilizing the power of ocean waves. In a further embodiment, a cylindrical distributor is provided in the helical turbine to channel the fluid flow to the blades of the turbine, thereby increasing efficiency and power output. The helical turbine with distributor may be used to lift or lower a body either being submerged into a fast stream or dragged in the fluid. The turbine may also include two or more rings of helical blades to increase torque and power output.
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Look Edward K.
Northeastern University
Sgantzos Mark
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