| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor 2 having little vibrations and a fuel pump using the motor by a method wherein an inclination suppressing means which suppresses an inclination of an axis of an armature 22 relative to the axes of both bearings 23 and 24. SOLUTION: An imaginary plane P, which is perpendicular to the bisector of an angle between lines connecting a shaft center Ca of an armature 22 with centers Cb of respective brushes 21, and further, includes the shaft center Ca of the armature 22, is provided. A second magnet 28 is provided in a space on one side of the plane P so as to face the respective brushes 21 with a plane P between. The center 28a of the second magnet 28 in its axial direction is shifted from a center 222a of a core 222 in its axial direction by a length D in the direction of a first pressing force Fb. With such a constitution, angular moment Mb applied to the armature 22 by the brushes 21 is canceled and the inclination of the armature 22 is eliminated, so that the vibration of the motor 2 in operation can be suppressed and the vibration of a fuel pump 1 can be suppressed.
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