Patent ID: 8388322

Claim:
A pump for deployment in a fuel system, the pump comprising: a housing having a casing, a first end cap and a second end cap, the first end cap having a fuel inlet port and the second end cap having a fuel outlet port; a brushless DC electric motor having a permanent magnet armature and sensorless electronic drive, the motor being disposed within the housing such that the permanent magnet armature rotates within the casing and about a longitudinal axis of the casing; the armature of the brushless motor axially coupled to pump means within the casing, the pump means disposed between the fuel inlet port and the fuel outlet port and comprising an impeller having sling vanes disposed within a pressuring chamber defined by an inner surface on a molded inner projection of the casing; the molded inner projection of the casing further having an inlet surface and an outlet surface; and the inlet surface having passages to allow the flow of fuel into the pressuring chamber and the outlet surface having passages to allow the flow of fuel out of the pressuring chamber; and a controller comprising electronic circuitry mounted within the housing and adapted to receive analog inputs from one or more external electric devices and output a power supply signal to the brushless electric motor.