Electromagnetic vibration generator

Details Electromagnetic vibration generator Electromagnetic vibration generator

1991-11-27

1995-04-11

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Reciprocating

310 16, 310 17, 310 29, 310 81, 310181, H02K 3500

Patent

active

054061520

ABSTRACT:
An electromagnetic vibration generator includes a housing, a U-shaped magnet core disposed in the housing and having parallel-extending legs each terminating in a pole face, and an excitation winding inserted on each core leg. The magnet core is encased in cast resin in the housing. The vibration generator further has an armature adapted to be vibrated by an excitation current flowing through the excitation winding. The armature is separated from the pole faces by an air gap. Arrangements are provided for reducing effects of heat expansion of components of the vibration generator on the air gap width.

REFERENCES:
patent: 3130333 (1964-04-01), Freye
patent: 3167670 (1965-01-01), Spurlin
patent: 3277394 (1966-10-01), Holt
patent: 3312841 (1967-04-01), Makino
patent: 3345525 (1967-10-01), MacBlane
patent: 3764834 (1973-10-01), Brosch et al.
patent: 4074154 (1978-02-01), Kuschel
patent: 4680492 (1987-07-01), Tamura
patent: 4950931 (1990-08-01), Goldenberg
patent: 4968224 (1990-11-01), Hashimoto
patent: 4994698 (1991-02-01), Kliman

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