Magnetic ring for free piston rectilinear generators
OwnerJacques H. Jarret, Jean-Marie B. Jarretinventors
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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.
Claims4
A generator comprising at least one coil surrounded by a magnetic circuit of an inductor for taking-off electrical power, said magnetic circuit forming a gap with a reciprocating mobile part moving between two positions, said gap having a length which varies with displacement of the mobile part, the mobile reciprocating part being made in the form of a magnetic ring with sheets of ferro-magnetic material having a uniform thickness and width and being radially and regularly positioned, the distance between the sheets in the proximity of a residual gap between the magnetic ring and the opposite wall of the magnetic circuit of the inductor being such that the proportion of ferro-magnetic of the magnetic ring in area of said residual gap represents from 50 to 80% of the proportion of sheets in the magnetic circuit of the inductor.
Dependencies are inferred from the claim text.