Automotive fuel pump

Details Automotive fuel pump Automotive fuel pump

1991-12-09

1992-12-22

Koczo, Michael

Pumps

Motor driven

Electric or magnetic motor

4174237, 41742314, F04B 1700, F04B 3504

Patent

active

051730375

ABSTRACT:
An automotive fuel pump has a tubular shell, a pump group in the shell, an end housing in the shell, and an electric motor in the shell including an armature shaft. The armature shaft has an integral annular first spherical shoulder engaging a seat of a first bearing on a partition wall of the pump group. The first bearing reacts axial thrust and radial bearing forces between the partition wall and the armature shaft and supports the armature shaft on the partition wall for rotation about the centerline of the shaft and for universal pivotal movement about the center of the first spherical shoulder. The armature shaft has an integral second spherical shoulder received in a cylindrical bearing seat of a second bearing on the end housing. The second bearing reacts only radial bearing forces between the armature shaft and the end housing in plane perpendicular to the centerline of the bearing seat whereby the armature shaft is supported on the end housing for rotation about the centerline of the armature shaft regardless of whether the centerline of the armature shaft coincides with the centerline of the cylindrical bearing seat.

REFERENCES:
patent: 3418991 (1968-12-01), Schultz et al.
patent: 4573882 (1986-03-01), Watanabe et al.
patent: 4626178 (1986-12-01), Terumoto
patent: 4718827 (1988-01-01), Sutton et al.
patent: 4806025 (1989-02-01), Kamiyama et al.
patent: 4834623 (1989-05-01), Triolo et al.

Affiliated with

Also associated with

Rating

Automotive fuel pump does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Automotive fuel pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automotive fuel pump will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-972304