Fluid pump and electric motor, and manufacturing method for the same

摘要

A fluid pump includes a motor portion that has a stationary part and a rotator. The inner circumferential periphery of the stationary part and the outer circumferential periphery of the rotator define a fuel passage therebetween. The rotator is rotatable around the inner circumferential periphery of the stationary part. The motor portion drives a pump portion for pumping fuel through the fuel passage. The rotator includes a permanent magnet that is formed by injection molding a composite material containing a magnetic material and resin. The permanent magnet has one end with respect to the axial direction of the permanent magnet. The one end defines an axial end surface. The axial end surface has an injection port mark.