DC motor magnetic circuit configuration with high flux density
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United States of America Patent
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Apr 21, 1998
Grant Date -
N/A
app pub date -
Aug 25, 1995
filing date -
Aug 25, 1995
priority date (Note) -
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Abstract
A DC motor magnetic circuit configuration having reduced flux leakage and improved flux density that leads to greater motor efficiency and a higher motor constant. In one embodiment of the invention, and improved permanent magnet DC motor is provided that has a stator frame supporting a plurality of pole pieces in proximity to a rotor rotatably accommodated therein. The improvement comprises at least one of the pole pieces having a pole face lying in a plane that intersects both isotropic and anisotropic planes of the pole piece.
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