Motor-driven fuel pump

Details Motor-driven fuel pump Motor-driven fuel pump

1989-12-21

1991-10-01

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 68B, 310 89, 310191, 310156, 310254, 318254, 417336, 4174237, H02K 1602

Patent

active

050536648

ABSTRACT:
A motor-driven fuel pump including a brushless motor; a motor housing for enclosing the brushless motor; and a pump section adapted to be driven by the brushless motor for sucking a fuel and pumping the same into the motor housing. The brushless motor includes a stator fixed to an inner circumference of the motor housing; a rotor assembly adapted to be rotated by supplying current to the stator, which rotor assembly includes a motor shaft, a rotor mounted to the motor shaft a rotor cover mounted to one end of the rotor magnet on the side of the pump section, a timing rotor mounted to the other end of the rotor magnet, and a sensor magnet mounted to an end of the timing rotor on the side opposite to the rotor magnet; an end cover mounted at an inlet end of the brushless motor; a motor shaft bearing mounted in the end cover for rotatably supporting the motor shaft; and a timing rotor bearing interposed between an outer circumference of the timing rotor and the inner circumference of the motor housing for rotatably supporting the timing rotor.

REFERENCES:
patent: 4385276 (1983-05-01), Bitzel
patent: 4493620 (1985-01-01), Takei
patent: 4573882 (1986-03-01), Watanabe
patent: 4778354 (1988-10-01), Idei
patent: 4784587 (1988-11-01), Takei
patent: 4955790 (1990-09-01), Nakanishi

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