Two pole permanent magnet rotor construction for toothless stator electrical machine
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United States of America Patent
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-
May 19, 1987
Grant Date -
N/A
app pub date -
Nov 20, 1985
filing date -
Nov 20, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A two pole permanent magnet rotor utilizes a single cylindrical two pole permanet magnet mounted between two end pieces and surrounded by a retaining hoop. The cylindrical two pole permanent magnet, which is made of high energy product material, is 'straight through' diametrically magnetized to provide a sinusoidal air gap flux distribution which eliminates losses due to harmonics. The cylindrical two pole permanent magnet may be made of a plurality of smaller magnet blocks which are stacked and machined to form a cylindrical configuration.
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