NOVELTY - A cavitation hydrogen generator comprises a closed housing element including cylindrical inner housing wall defining a cavitation chamber; at least one turbine assembly inside the cavitation chamber and having curved turbine fan blades extending perpendicularly and radiating outwardly from a centrally located drive ring; heat exchanger; hydrogen storage tank; water inlet conduit; gas mixture recycling conduit; and hydrogen storage conduit.    USE - For mechanically separating hydrogen molecules from water to be used as a fuel source for internal combustion engines and fuel cells.    ADVANTAGE - The device produces hydrogen without harmful by-products that pollute the air or are difficult to discard. It is simple, compact, and economical mechanical device. It reduces foreign dependency on petroleum fuel.    DETAILED DESCRIPTION - A cavitation hydrogen generator comprises a closed housing element including cylindrical inner housing wall (16) defining a cavitation chamber, cylindrical outer housing concentrically spaced apart from the inner housing wall, and two end walls, the first having at least one water inlet port and one gas mixture inlet port, the second having at least one gas mixture recycling port and one hydrogen storage port; at least one turbine assembly (24) inside the cavitation chamber and comprising a circular back plate of a smaller diameter than that of the inner housing wall, thus allowing it to rotate freely, the turbine assembly having curved turbine fan blades extending perpendicularly and radiating outwardly from a centrally located drive ring and terminating at the peripheral edge, the drive ring including a power shaft with the distal end extending externally from the housing element and in communication with a motive mechanism; heat exchanger (38) externally located relative to the housing element; hydrogen storage tank; water inlet conduit communicating between the water inlet port and a pressurized water source; gas mixture recycling conduit (29) communicating between the gas mixture recycling port and the gas mixture inlet port and passing through the heat exchanger to remove any excessive heat from the gas mixture prior to reintroduction to the cavitation chamber; and hydrogen storage conduit (31) communicating between the hydrogen storage port and the hydrogen storage tank.    DESCRIPTION OF DRAWING(S) - The figure is a cross-sectional view of the cavitation hydrogen generator assembly.    Inner housing wall (16)    Turbine assembly (24)    Gas mixture recycling conduit (29)    Hydrogen storage conduit (31)    Heat exchanger (38)