ELECTRONIC FLUID PUMP WITH ENCAPSULATED STATOR ASSEMBLY

摘要

A fluid pump includes a pump housing(12 AND 14) having a housing cavity with an inlet and an outlet. An encapsulated stator assembly (22) is positioned within the housing cavity (15) and at least partially defines a fluid passag e from the inlet to the outlet. A seal cartridge assembly (26) provides a frontal seal for the stator assembly, and supports the pump shaft (28b). A polymeric capsule member encloses and seals the encapsulated stator assembly (22), protecting the motor from, and providing heat transfer to, the working fluid. A stator (20) provides a magnetic field which drives a rotor assembly (28). The motor assembly rotates an impeller (16) for pumping fluid from the inlet to the outlet.