IMPROVED BRUSHLESS ALTERNATOR
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United States of America Patent
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Issued Date -
Sep 19, 2024
app pub date -
Dec 16, 2021
filing date -
Dec 17, 2020
priority date (Note) -
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status (Latency Note)
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Abstract
A vehicle brushless alternator assembly that includes a claw pole rotor assembly having a pair of opposing pole pieces. The rotor defining an axis of rotation, each of the pole pieces having multiple circumferentially spaced pole fingers extending axially. The pole fingers of the rotor alternating between north and south magnetic polarities upon energization of a field coil. The assembly including a cylindrical stator including armature enveloping the magnetic claw poles, the stator arranged coaxially relative to the drive shaft. The field coil positioned relative to said rotor to generate magnetic flux and the field coil including a first field winding electrically connected with a second field winding by a switch such that: in a first operable configuration the switch operates to electrically connect the field windings in series during energization and in a second operable configuration the switch operates to electrically connect the field windings in parallel during energization.
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