ENERGY ACCUMULATOR COMPRISING A SWITCHED RELUCTANCE MACHINE
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United States of America Patent
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Issued Date -
May 6, 2010
app pub date -
Apr 8, 2008
filing date -
Apr 12, 2007
priority date (Note) -
Abandoned
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Abstract
The energy storage device has an electrical machine (12) comprising a rotor (14) and a stator (16), the stator (16) being separated from the rotor (14) by an air gap (18) and having at least one stator coil (20). The rotor (14), moreover, has a fly-mass (22) and, together with the latter, constitutes a rotating body. The rotor (14) or the rotating body consists of a multiplicity of thin sheet-metallic discs (30), which have the form, substantially, of an annular disc having an outer edge and an inner edge. There has been applied to these sheet-metal discs (30), at their outer edge, a first tensile stress and, at their inner edge, a first shear stress.
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