Closed-circuit hydraulic propeller

Abstract

The present invention provides closed-circuit hydraulic propeller used for the generation of thrust, or lift, force from the torque provided by a prime mover, or a motor, with said thrust, or lift, force being utilized in propelling, or lifting, a movable vehicle. In a preferred embodiment the closed-circuit hydraulic propeller comprises an outer casing; two inner-members; an intermediate body; a drive shaft; a rotor assembly including at least one central disk and a plurality of circumferentially arranged thrust, or lift, generating, blades; and an incompressible fluid completely filling the space enclosed within the casing. In operation, the incompressible fluid will circulate within the passages confined between the opposing surfaces of the casing, inner-members, and intermediate body due to its acceleration by the rotor blades, with the blades' generated thrust force being transmitted to the propeller's casing through thrust bearing arrangement(s) Means for cooling the incompressible viscous fluid are also provided.

Dependencies are inferred from the claim text.