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AssigneeInstituto Superior Tecnico
InventorsAntonio Franco De Oliveira FALCAO, Luis Manuel De Carvalho GATO, Joao Carfos De Campos HENRIQUES
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The present invention relates to an air turbine capable of without change in its rotational velocity direction, efficiently absorbing the energy associated with a pressure difference between two spaces (A) and (B) of successively changing sign, as in the case of sea wave energy systems. The turbine comprises two sets of blades (I) and (II), each of which is similar to the blade system of a conventional turbine of radial-, mixed- or axial-flow type. The turbine also comprises a system of ducts that connect spaces (A) and (B) through any of the two blade sets (I) and (II). The turbine may be equipped with a fast-acting valve that stops the flow through one or both blade sets (I) and (II).
Air turbine for applications in wave energy conversion associated with a pressure difference between space (A) and space (B) of alternately changing sign, comprising a rotor with two blade rows (2) and (3), axially offset from each other, circumferentially mounted on a hub (6) fixed to a shaft (7), and a stator with two rows of guide vanes (4) and (5), in which blade set (I) consisting of rotor blade row (3) and stator guide vane row (4), and blade set (II) consisting of rotor blade row (3) and stator guide vane row (5), are similar to the blading of conventional radial-flow, mixed-flow or axial-flow turbines, said turbine being characterized in that:
Dependencies are inferred from the claim text.