F - Mech Eng,Light,Heat,Weapons – 03 – B
Patent
F - Mech Eng,Light,Heat,Weapons
03
B
F03B 13/22 (2006.01) F03B 17/06 (2006.01)
Patent
CA 2421139
A submersible hydraulic turbine for generating electricity from the marine currents is disclosed. The turbine structure is fully submerged having a horizontal rotor. The rotor shaft is perpendicular to the marine current direction. The rotor is equipped with a number of blades fixed between circular discs and parallel to the turbine shaft. The marine current impinges on the turbine blades rotating the shaft. A gear multiplies the shaft speed and transmits the rotation to an electrical generator. The gear and the generator are located within a sealed casing pressured with air at the same pressure as the surrounding water. On its lower side the casing has a converging duct that increases the current velocity. The upper side of the casing has a prominent bump. The arhimedic force applied on this bump ensures the turbine stability when the generator runs. Four anchor cables secure the turbine structure on the ocean floor.
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