ELECTRIC MOTOR ASSISTED TURBOCHARGER
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United States of America Patent
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app pub date -
Jan 23, 2013
filing date -
Jan 31, 2003
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Abstract
A turbocharger comprises a turbine wheel and a compressor wheel mounted to a turbocharger shaft. An electric induction motor is provided for assisting rotation of the compressor wheel in predetermined circumstances. The motor comprises a fixed stator having motor field coils which generate a rotating magnetic field when energised by an AC control signal which induces eddy current flow in a rotor to generate a rotor magnetic field which in turn interacts with the stator magnetic field producing torque in the rotor.
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