Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
VEHICLE MOTOR
Document Type and Number:
Japanese Patent JP2003116248
Kind Code:
A
Abstract:

To provide a motor 2 having little vibrations and a fuel pump using the motor by a method wherein an inclination suppressing means which suppresses an inclination of an axis of an armature 22 relative to the axes of both bearings 23 and 24.

An imaginary plane P, which is perpendicular to the bisector of an angle between lines connecting a shaft center Ca of an armature 22 with centers Cb of respective brushes 21, and further, includes the shaft center Ca of the armature 22, is provided. A second magnet 28 is provided in a space on one side of the plane P so as to face the respective brushes 21 with a plane P between. The center 28a of the second magnet 28 in its axial direction is shifted from a center 222a of a core 222 in its axial direction by a length D in the direction of a first pressing force Fb. With such a constitution, angular moment Mb applied to the armature 22 by the brushes 21 is canceled and the inclination of the armature 22 is eliminated, so that the vibration of the motor 2 in operation can be suppressed and the vibration of a fuel pump 1 can be suppressed.


Inventors:
ITO MOTOYA
TAKAGI MASATOSHI
Application Number:
JP2001311676A
Publication Date:
April 18, 2003
Filing Date:
October 09, 2001
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
DENSO CORP
International Classes:
F02M37/08; F04D5/00; F04D13/06; F04D13/08; F04D29/00; H02K5/24; H02K23/00; (IPC1-7): H02K5/24; F02M37/08; F04D5/00; F04D13/06; F04D13/08; F04D29/00; H02K23/00
Attorney, Agent or Firm:
Hirohiko Usui (2 outside)