Magnetic ring for free piston rectilinear generators

Details Magnetic ring for free piston rectilinear generators Magnetic ring for free piston rectilinear generators

1984-04-19

1985-09-24

Budd, Mark O.

Electrical generator or motor structure

Dynamoelectric

Reciprocating

310 42, 310217, H02K 3300

Patent

active

045435022

ABSTRACT:
The generator comprises at least one coil surrounded by a magnetic circuit of an inductor for taking-off electrical power. The magnetic circuit forms a variable gap with a reciprocating mobile part moving between two positions. The mobile reciprocating part is made in the form of a magnetic ring made by sheets of ferro-magnetic material having a uniform thickness and width and being radially positioned. The distance between the sheets at the proximity of a residual gap is such that ferro-magnetic material in area of the residual gap represents from 50 to 80% of the sheets in the magnetic circuit of the inductor.

REFERENCES:
patent: 3591819 (1971-07-01), Laing
patent: 3814963 (1974-06-01), Laing
patent: 3955272 (1976-05-01), Hallerback
patent: 4227142 (1980-10-01), Jarret et al.
patent: 4249099 (1981-02-01), Bhongbhibhat

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