Fluid rotor
OwnerClinton L. Graybillinventor
Life of this patent
Estimating the term…
Abstract
A conical shaped rotor is described for rotation about a horizontal shaft axis for responding to or creating a moving airstream. The rotor is elongated and conical shaped along the rotor axis with elongated blades extending longitudinally and radially inward from an enlarged end to a reduced end. The blades are angularly offset between 1.degree. and 15.degree. from the rotor axis to cause an inner side edge of each blade to be closer to the rotor axis than an outer side edge without the blades being twisted about their longitudinal axis. In one form an electrical generator is operatively attached to the rotor shaft for generating electrical energy in response to the rotation of the rotor by wind passing therethrough. In a second form the rotor is driven by a motor to create an air flow therethrough to serve as a fan.
Claims8
A fluid rotor assembly comprising:
- a support;
- a shaft rotatably mounted on the support for rotation about a shaft axis;
- an elongated rotor concentrically mounted to the shaft and extending along the shaft axis for concurrent rotation with the shaft;
- said rotor having a concentric circular entrance at a front end thereof with a selected radius about the shaft axis;
- said rotor having a plurality of longitudinally extending, elongated blades that have lengths greater than the radius of the opening;
- each of said blades extending from the front end longitudinally rearward and radially inward with respect to the shaft axis toward a rear end of the rotor with the blades progressively overlapping each other as the blades proceed rearward;
- and
- each of said blades extending rearward at an offset angle with respect to the shaft axis with one side edge of each blade being progressively closer to the shaft axis than a complementary opposite side edge as the blade proceeds rearward forming elongated rotor side openings between adjacent blades for fluid to pass therethrough, in which each side opening has a progressively increasing thickness between blades as the blades proceed rearward for enabling the fluid to pass transversely between the blades through the elongated rotor side openings.
Dependencies are inferred from the claim text.