Patent ID: 8734133
Filing Date: 2014-05-27
Classification: F04D,H02K

Abstract:
1. A fuel pump comprising: a cylindrical housing; a pump cover for closing one end of the housing and having an inlet port; an end cover for closing the other end of the housing and having an outlet port; a cylindrical stator having multiple stator cores, on which each of stator coils corresponding to respective phase windings is wound, the multiple stator cores being arranged at an inner peripheral surface of the housing and in a circumferential direction of the housing, a rotor rotatably accommodated in an inside of the stator in a radial direction thereof; a shaft coaxially arranged with the rotor so that the shaft is rotated together with the rotor; an impeller connected to the shaft and thereby rotated together with the shaft so as to draw fuel from the inlet port and to pump out pressurized fuel from the outlet port; and a terminal sub-assembly provided in an axial side portion of the stator on a side of the end cover, wherein the terminal sub-assembly has multiple conductive members to which each end portion of the stator coils on the side of the end cover is connected, wherein the multiple conductive members are integrally formed in the terminal sub-assembly, wherein the terminal sub-assembly has terminals, to which wires are connected to connected to supply electric power to the stator coils, and wherein the multiple connecting portions are arranged in the circumferential direction of the stator at an angle, which is equal to a value calculated by dividing 360° by a number of the stator cores, and each of the connecting portions is respectively connected to the respective end portions of the stator coils.