Importance

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Abstract

In some embodiments, a fluid-flow system comprises an internal magnetic array coupled to at least one set of rotor blades. The internal magnetic array comprises magnets arranged to provide alternating polarity around its periphery. The system may further comprise at least one external magnet. The internal magnetic array and the at least one external magnet are arranged such that actuation of one magnetically induces actuation of the other. In some embodiments, actuation of the at least one external magnet induces, though magnetic coupling, rotation of the internal magnetic array, thereby causing rotation of the at least one set of rotor blades to drive a fluid flow. In some embodiments, a fluid flow through the at least one set of rotor blades induces rotation of the internal magnetic array and actuation of the at least one external magnet. In other embodiments, a step-up or step-down system is provided by magnetic coupling. In other embodiments, a magnetic array is in the form of a star shape or non-convex polygon.

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First Claim