Patent ID: 7048518

Claim:
A pump comprising: a casing having at least one first hermetically sealed chamber, and at least one second chamber adjacent to said first chamber, defining a passageway for fluids and having an inlet and an outlet for the fluids, the first and second chambers being separated from each other by walls; a stator located in said first chamber; a rotor-turbine assembly with rotor and turbine, and being capable of being induced by the stator to drive a fluid from the inlet to the outlet, at least a portion of said assembly being positioned concentrically with respect to the stator, wherein the rotor and the turbine are integral and are wholly located in the second chamber, so that, when in operation, a film of fluid will be maintained around said assembly to provide a support therefor, and wherein said rotor-turbine assembly is bored through, defining an internal fluid passageway; wherein said integral rotor-turbine assembly is supported in said pump bearing free.