Electromagnetic switch device with open-ended plunger

Details Electromagnetic switch device with open-ended plunger Electromagnetic switch device with open-ended plunger

1990-05-14

1991-05-14

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310256, 335279, H02K 7118, F16H 344, F02N 1100, F02N 1506

Patent

active

050158996

ABSTRACT:
An electromagnetic switch device for a starter motor has a plunger 21 defining a cylindrical body 22 slidably fitted in a sleeve 8, and a trumpet shaped intermediate plate 23 which generally extends in a plane perpendicular to the central axis of the cylindrical body. At least part of the cylindrical body has a thin-walled portion which extends in a direction opposite the extension direction of a cylindrical rod 24 driven by the plunger, from a junction 21a to the radially outer portion of the intermediate plate.

REFERENCES:
patent: 3221190 (1965-11-01), Bennett et al.
patent: 4021152 (1977-05-01), Toyoda
patent: 4538129 (1985-08-01), Fisher
patent: 4816712 (1989-01-01), Tanaka

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