Title:
FUEL PUMP UNIT
Document Type and Number:
WIPO Patent Application WO/2004/063552
Kind Code:
A1
Abstract:
In a fuel pump unit, a motor housing (6) is installed on a base bracket (2), a motor rotor (8) is received in the housing, and a brush holder (9) is axially fitted in the housing to cover it. At the brush holder (9) are arranged a motor shaft (8a) opened in the fitting direction, a brush fix portion (9f), and a communication hole (9d). A motor portion (M) constructed as described above is covered by a pump unit casing (15) fixed on the outer periphery of the base bracket (2) and coaxially extended with the base bracket. The upper part of the pump unit casing is covered by an outlet cover (11) with a discharge opening (11a). A radially continuous gap is provided between the brush holder (9) and the outlet holder, forming a filtration-side communication flow passage (f2).
Inventors:
HOMMA BUNJI (JP)
ITO KATSUTOSHI (JP)
ITO KATSUTOSHI (JP)
Application Number:
PCT/JP2004/000251
Publication Date:
July 29, 2004
Filing Date:
January 15, 2004
Export Citation:
Assignee:
MITSUBA CORP (JP)
HOMMA BUNJI (JP)
ITO KATSUTOSHI (JP)
HOMMA BUNJI (JP)
ITO KATSUTOSHI (JP)
International Classes:
F02M37/08; F02M37/10; F04D5/00; F04D13/00; F04D13/02; (IPC1-7): F02M37/08
Foreign References:
| US6073614A | 2000-06-13 | |||
| US20020140313A1 | 2002-10-03 | |||
| US6358412B1 | 2002-03-19 | |||
| US5472321A | 1995-12-05 |
Attorney, Agent or Firm:
Shiga, Masatake (Yaesu Chuo-ku, Tokyo, JP)
Download PDF: