MOTOR/GENERATOR AND MOTOR DRIVE CIRCUIT
Number of patents in Portfolio can not be more than 2000
United States of America
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Issued Date -
Mar 13, 2025
app pub date -
Nov 26, 2024
filing date -
Nov 26, 2024
priority date (Note) -
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Abstract
Apparatus for use as a motor or generator, comprising: a first part; a second part movable relative to the first part and spaced from the first part by an air gap; and a plurality of spaced electromagnet elements (120) provided on the first part, each electromagnet element being operative to apply a magnetic field in the air gap in response to application of an electric current; wherein each electromagnet element comprises: a pole piece comprising: an outer section (124A, 124B) defining an elongate air-gap facing surface (125A) of area A1, perimeter P1, lateral width W1, and longitudinal length L1, wherein L1 is greater than W1; and a coil-winding section of cross-sectional area A2, cross-sectional perimeter P2, lateral width W2, and longitudinal length L2; and an electrically conductive coil (128) wound around the coil-winding section of the pole piece; characterised in that P2 is less than P1 and in that W2 is substantially equal to L2.
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