The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 20, 2007
Filed:
Jan. 30, 2004
Applicant:
Edward Spooner, Crook, GB;
Inventor:
Edward Spooner, Crook, GB;
Assignee:
Holset Engineering Company, Ltd., Heddersfield, West Yorkshire, unknown;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02B 33/44 (2006.01); H02K 21/12 (2006.01); H02K 21/22 (2006.01); H02K 17/00 (2006.01); H02K 7/18 (2006.01);
U.S. Cl.
CPC ...
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.