Patent ID: 6659737
Filing Date: 2003-12-09
Classification: F04D

Abstract:
A fluid pump, comprising:a housing having a housing cavity therein with an inlet and an outlet; an impeller rotatably positioned at the inlet and having an impeller axis; an encapsulated stator assembly enclosed and sealed by a polymeric capsule member, the polymeric capsule member defining a rotor cavity having an opening, and orienting motor power leads with substantial circumferential symmetry around the impeller axis, the encapsulated stator assembly including a plurality of steel laminations, a plurality of copper windings, and a plurality of motor power leads; a rotor assembly rotatably located inside the rotor cavity and connected to the impeller for rotating the impeller for pumping fluid through the passage from the inlet to the outlet; and a seal cartridge assembly positioned within the opening for sealing the rotor assembly within the rotor cavity.