Pumps – Motor driven – Including means utilizing pump fluid for augmenting cooling,...
Patent
1990-05-17
1991-05-14
Smith, Leonard E.
Pumps
Motor driven
Including means utilizing pump fluid for augmenting cooling,...
4174237, 417902, 123499, 123 4131, 310 87, F04B 3504
Patent
active
050151592
ABSTRACT:
A fuel pump including a housing; a motor section provided in the housing which motor section includes an armature and a magnet opposed to the armature with a substantially annular space defined therebetween as a fuel passage, which armature includes a core formed by stacking a plurality of plates and a coil wound around the core; a pump section fixed to a lower end of the housing and connected to the motor section to be driven thereby; a fuel inlet formed in the pump section for sucking a fuel by driving the motor section; a fuel outlet formed at an upper end of the fuel pump for discharging the fuel fed from the fuel inlet through the fuel passage; and a first resin portion impregnated in the core and the coil for suppressing vibration of the armature. The fuel pump having the above construction preferably further includes a second resin portion coated on a surface of at least the first resin portion, which second resin portion has a resistance against the fuel and no influence upon the fuel.
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Kamiya Kingo
Kikuta Hikaru
Mine Koichi
Takeuchi Hitoshi
Aisan Kogyo Kabushiki Kaisha
Smith Leonard E.
Szczecina Jr. Eugene L.
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