Current-carrying member for a direct-current motor in a fuel pump, method for producing the same, and fuel pump

A fuel pump employing a current-carrying member for a direct-current motor, said current-carrying member comprising:

• a brush having a sliding surface at one end and fed with a current from a power supply source;
• and
• a commutator having a sliding surface that slides on the sliding surface of said brush for feeding an armature coil with the current received from said brush,
• wherein at least one of said brush and said commutator is composed of a carbon layer having carbon as a principal component and forming the sliding surface at a first end, and a metal carbon layer fixedly bound with said carbon layer at a second end and comprising 55 to 90 wt % of metal having brass as a principal component and a remaining portion having carbon as a principal component.