Electrically-operated fuel pump

An electrically-operated fuel pump for pumping fuel such as gasoline, light oil and heavy oil, comprising a pump housing having a fuel suction port at its bottom surface, a fuel discharge port at its top surface, and conduit means therebetween for passing fuel through said housing;

• a motor having a rotating shaft and encased centrally in said pump housing, said motor comprising a rotor formed by fixing a permanent magnet to said rotating shaft thereof and a stator arranged around said rotor, said stator having plural windings of coils adapted to be sequentially excited to rotate said rotor;
• pump means encased in said pump housing below said motor and operatively connected to said rotating shaft of said motor;
• and an electric circuit package made of an oil-resistant and water-resistant material and incorporated in said pump housing above said motor, said electric circuit package oil-tightly incorporating a plurality of rotor position detecting devices for detecting an angular position of said rotor, said rotating shaft of said motor being inserted through said electric circuit package with an annular space defined between said rotating shaft and said package, the annular space comprising a portion of said conduit means, wherein a portion of said electric circuit package facing to said rotor is made of a paramagnetic material.