Fuel supply device

Details Fuel supply device Fuel supply device

1998-10-07

2000-03-28

Solis, Erick R.

Pumps

Motor driven

Electric or magnetic motor

F04B 1703

Patent

active

060423498

ABSTRACT:
A fuel supply device is composed of a rotary pump, a brush-less motor having a stator and a rotor connected to the rotary pump and a circuit unit for supplying drive current to the brush-less motor. The circuit unit has a plurality of one-chip IC units on which a plurality of switching transistors and a circuit for detecting position of the rotor are integrally formed. The stator has a plurality of phase coils each of which is connected to one of the switching transistors of each of the one-chip IC units to be supplied with divided portion of the drive current from one of the switching transistors. Each of the phase coils is divided to a plurality of parallel coils having the same phase and each of the parallel coils is connected to one of the switching transistors.

REFERENCES:
patent: 4588933 (1986-05-01), Sun
patent: 4955790 (1990-09-01), Nakanishi et al.
patent: 4998865 (1991-03-01), Nakanishi et al.
patent: 5015159 (1991-05-01), Mine et al.
patent: 5053664 (1991-10-01), Kikuta et al.
patent: 5356272 (1994-10-01), Nagata et al.
patent: 5593287 (1997-01-01), Sadakata et al.

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