Coaxial engine starter

Details Coaxial engine starter Coaxial engine starter

1990-01-17

1991-11-12

Pellinen, A. D.

Prime-mover dynamo plants

Electric-starting motor

F02N 1108

Patent

active

050650386

ABSTRACT:
A coaxial engine starter comprising an electric motor including a brush assembly, an output shaft with a pinion and slidable relative to the motor and a solenoid switch having a movable iron core for closing and opening switch contacts. A cylindrical member rearwardly extends from the rear end of the brush assembly of the motor to surround a contact operating space in which the switch contacts move and has a rear edge located close to a front end of the movable iron core to define a small clearance therebetween. A shield member is also disposed behind the movable contact and has an outer edge located close to the rear edge of the tubular member and defines a radially small clearance therebetween. Thus, the cylindrical member and the shield member substantially surround the contact operating space and they are in a telescopically movable relationship relative to each other.

REFERENCES:
patent: 4677407 (1987-06-01), Tanaka
patent: 4748862 (1988-06-01), Johnston
patent: 4760274 (1988-06-01), Isozumi
patent: 4808836 (1989-02-01), Isozumi et al.
patent: 4945270 (1990-07-01), Okamoto

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