Contactless centrifugal pump

Abstract

A centrifugal pump for use with a liquid is disclosed. The pump includes a hollow casing arrangement, a rotor and a magnet arrangement. The casing arrangement defines an interior and an intersecting axis, an intake port for receiving said liquid in use and communicating same to said interior and a discharge port communicating with the interior. The rotor is positioned in said interior and rotatable about said axis in spaced relation to said casing. The rotor includes a drive member, a shaft extending axially from the drive member and an impeller coupled to said drive member by said shaft for rotation therewith and adapted to cause fluid from said interior to be ejected through said discharge port upon rotation. The magnet arrangement is disposed outside said interior and is adapted to drive rotation of said drive member about said axis in use through the creation of a rotating magnetic field.

Dependencies are inferred from the claim text.