Fuel pump having motor arrangement and pump arrangement

Details Fuel pump having motor arrangement and pump arrangement Fuel pump having motor arrangement and pump arrangement

2008-09-02

2008-09-02

Cronin, Stephen K. (Department: 3747)

Internal-combustion engines

Charge forming device

With fuel pump

C417S321000, C417S410100, C417S423100, C417S423800

Reexamination Certificate

active

11590767

ABSTRACT:
A stator core of a motor arrangement includes six cores, which are arranged one after another in a circumferential direction. A bobbin, which is made of dielectric resin, is fitted to each core. Each coil is formed such that a winding is wound around the bobbin through a concentrated winding technique. Dielectric resin is filled between each circumferentially adjacent two teeth to cover each coil. Furthermore, the dielectric resin is molded to form clearances, each of which is formed between the corresponding circumferentially adjacent two teeth on a rotor side. Fuel, which is pressurized by a pump arrangement, passes an interior of the motor arrangement through a fuel passage, which is a gap between an inner peripheral surface of the stator core and an outer peripheral surface of the rotor, and also through the clearances.

REFERENCES:
patent: 5015159 (1991-05-01), Mine et al.
patent: 7015396 (2006-03-01), Wada et al.
patent: 2003/0160533 (2003-08-01), Suzuki et al.
patent: 2005/0074343 (2005-04-01), Naito
patent: 2005/0220641 (2005-10-01), Nagata et al.
patent: 2222981 (1996-02-01), None
patent: 5-340345 (1993-12-01), None
patent: 2005012861 (2005-01-01), None
patent: 2005-110477 (2005-04-01), None
Chinese Office Action dated Feb. 15, 2008 issued in corresponding Chinese Application No. 200610142912.8 with English translation.
Chinese Office Action dated Feb. 15, 2008 issued corresponding Chinese Application No. 200610142912.8 with English translation.

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