A magnetically-actuated, motorized pump includes a plurality of cylinders extending at radially-spaced intervals between first and second heads. Each cylinder reciprocably receives a piston assembly including a pair of permanent magnets with outwardly-extending poles. Magnetic pumpsInlet and outlet valves are each provided at opposite ends of the cylinders. First and second rotors are each rotatably mounted at a respective end of the pump outside of a respective head.Self-priming pumps Each rotor includes a concentric ring comprising alternating permanent magnets and electromagnets for reciprocating the piston assemblies. Perimeter magnets are provided on the first rotor and the first head for interacting whereby rotary motion is imparted to the rotors. The electromagnets are actuated by an electrical distribution system. In the practice of the present invention, a magnetically-actuated motorized pump is provided which includes a plurality of cylinders extending between first and second heads. Each cylinder receives a piston assembly reciprocably mounted therein and including a pair of permanent magnets with outwardly-extending poles. Each cylinder end includes respective inlet and outlet valves. First and second rotors are rotatably mounted on each end of the pump outside of the first and second heads respectively. Each rotor includes a respective ring of alternating permanent magnets and electromagnets with poles adapted for selectively aligning with the poles of respective piston assembly permanent magnets whereby the piston assemblies are reciprocated within their respective cylinders. Perimeter magnets are located on the first head and the first rotor and are adapted for imparting rotary motion to the rotors, which are interconnected by a concentric rotor shaft. An electrical distribution system is provided whereby the electromagnets are selectively energized. The fluid may be used for driving, for example, an hydraulic motor. The principal objects of the present invention are: to provide a magnetically-actuated motorized pump; to provide such a pump which includes pistons reciprocably received in cylinders; to provide such a pump wherein fluid is utilized to enhance magnetic attraction and repulsion; to provide such a pump wherein the fluid is utilized for cooling permanent magnets for greater effectiveness; to provide such a pump wherein the fluid lubricates the moving parts; to provide such a pump which incorporates the functions of a prime mover unit and a pump unit in a single device; to provide such a pump which is efficient in operation, economical to manufacture, easy to repair, capable of a long operating life and particularly well adapted for the proposed usage thereof.

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2012-01-12

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