ROTOR OF A ROTARY ELECTRICAL MACHINE, AND ROTARY ELECTRICAL MACHINE COMPRISING A ROTOR OF THIS TYPE
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United States of America Patent
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Issued Date -
Apr 14, 2016
app pub date -
Jun 2, 2014
filing date -
Jun 5, 2013
priority date (Note) -
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Abstract
A rotor which includes a plurality of permanent magnets arranged in first recesses which extend axially and are regularly distributed between a circumferential portion and a central portion of the magnetic body of the rotor, such as to define a plurality of circumferential polar sections. The magnets each comprise a first portion close to the circumferential portion, wherein the first portion is adjacent to a second portion close to the central portion, the first portion having a first rectangular radial section with a first predetermined width in a circumferential direction and the second portion having a second rectangular radial section with a second predetermined width in a circumferential direction, the second width being smaller than the first width. According to the invention, the rotor also includes a plurality of second recesses which extend axially and are each arranged between two example consecutive magnets at the second portion thereof.
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