Starter for an internal combustion engine

Details Starter for an internal combustion engine Starter for an internal combustion engine

1998-05-13

2000-06-20

Bucci, David A.

Machine element or mechanism

Engine starters

74 7E, 310 89, H02K 500

Patent

active

060764120

ABSTRACT:
In an engine starter comprising: a DC electric motor; an output shaft; a pinion unit; a reduction gear unit for transmitting an output of the electric motor to the pinion unit through the output shaft; a solenoid device for axially moving the pinion unit into mesh with a ring gear of the engine; a cover member for surrounding at least the pinion and the reduction gear unit, the cover member having an opening facing the electric motor; a substantially cylindrical member for surrounding the electric motor so as to serve as a yoke for the electric motor; a disk-shaped plate for covering an end of the electric motor facing away from the pinion unit; and an annular separator disposed between the reduction gear unit and the electric motor so as to separate them from each other, the disk-shaped plate is provided with at least one axial protrusions for engaging an inner surface of one end portion of the substantially cylindrical member so as to align the disk-shaped plate and the substantially cylindrical member with each other, and an annular separator is provided with at least one axial protrusions for engaging an inner surface of the other end portion of the substantially cylindrical member so as to align the annular separator and the substantially cylindrical member with each other, and the annular separator is fitted into the opening of the cover member. Thus, since the disk-shaped plate, the substantially cylindrical member (yoke), the annular separator and the cover member are all aligned with each other without using the outer surface of the yoke, the outer surface of the yoke is allowed to be formed with lower precision. This eliminates the need of an additional step of machining or otherwise finishing the outer surface of the yoke with high precision, to thereby simplify the manufacturing process and lower the manufacturing cost of the yoke.

REFERENCES:
patent: 4154117 (1979-05-01), Mazzorana
patent: 4506162 (1985-03-01), Bolenz et al.
patent: 4525632 (1985-06-01), Tanaka
patent: 4573364 (1986-03-01), Givan
patent: 4673838 (1987-06-01), Takagi et al.
patent: 4800766 (1989-01-01), Isozumi et al.
patent: 5118960 (1992-06-01), Sasamoto et al.
patent: 5307702 (1994-05-01), Spellman et al.

Affiliated with

Also associated with

Rating

Starter for an internal combustion engine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Starter for an internal combustion engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Starter for an internal combustion engine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1842203