Patent ID: 7950907

Claim:
A fluid pump comprising: a stator core having a stator core inner circumferential periphery; a plurality of coils that are respectively wound around the stator core, the plurality of coils circumferentially generating magnetic poles in the stator core inner circumferential periphery when being supplied with electricity, the magnetic poles being switched by controlling electricity supplied to the plurality of coils; a rotator that is rotatable within the stator core inner circumferential periphery, the rotator having a rotator outer circumferential periphery opposed to the stator core inner circumferential periphery, the rotator outer circumferential periphery defining magnetic poles different from each other with respect to a rotative direction of the rotator; a pump portion that has a rotor member, the rotator being adapted to rotate the rotor member for pumping fuel; a housing that has a housing inner circumferential periphery having an integral protrusion defining a recession, which accommodates the stator core; a plurality of terminals that electrically respectively connect with the plurality of coils, wherein the stator core, the plurality of coils, and the plurality of terminals are insert-molded with an electrically insulative resin material, the plurality of terminals are partially exposed outside of the electrically insulative resin material, and the stator core has a stator core first axial end defining a stator core outer circumferential end that is at least partially not exposed to the electrically insulative resin material, wherein the stator core first axial end is located on the stator core on a stator core first side that is proximate to the pump portion, the electrically insulative resin material defines a cover member that covers the stator core on a stator core second side that is axially opposite to the stator core first side, the cover member has a cover outer circumferential periphery that defines a fuel seal by making contact with the housing inner circumferential periphery, and wherein the stator core outer circumferential periphery, the housing inner circumferential periphery, and the cover outer circumferential periphery define a contact portion, and the contact portion and a portion of the stator core outer circumferential end abutted against a recession axial end define a space.