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:
Jan. 25, 2005
Filed:
Dec. 11, 2001
Guenter Kastinger, Gaggenau-Sulzbach, DE;
Hartmut Krueger, Buehlertal, DE;
Guenter Kastinger, Gaggenau-Sulzbach, DE;
Hartmut Krueger, Buehlertal, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
In a unipolar transverse flux machine, for its modular construction, at least one rotor module has two coaxial, ferromagnetic rotor rings, toothed with a constant tooth pitch over its outer circumference, and a unipolarly magnetized permanent magnet ring fastened between them, and as at least one stator module, concentric with it, has a number of yokelike stator poles corresponding to twice the number of teeth of the rotor module, the stator poles being offset from one another by a pole pitch (τ) and with their two yoke legs facing the two rotor rings, with an air gap between them, and an annular coil. At least one pair of stator pole groups having the same number of stator poles is formed, and these groups are displaced relative to one another by an electrical angle α=180°/ν, where ν is the ordinal number of the harmonic in the torque that is suppressed by this displacement.