Transversal flux machine

Details Transversal flux machine Transversal flux machine

2007-10-09

2007-10-09

Mullins, Burton (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S164000, C310S257000

Reexamination Certificate

active

10559089

ABSTRACT:
A machine with transversal flux comprises a stator and a rotor. Therein, either the stator has a coil arrangement and the rotor is provided with permanent magnet elements, or the rotor may have a coil arrangement and the stator is provided with permanent magnet elements. The coil arrangement has at least one cylindrical winding and is encompassed by a magnetic flux yoke which in a sectional view along the centre longitudinal axis of the coil arrangement is approximately C-shaped. The magnetic flux yoke has a leg at each end which at least partially encompasses one face each of the coil arrangement. At one surface area of the coil arrangement several magnetic flux conducting pieces are arranged coaxially with the centre longitudinal axis of the coil arrangement in several rows. Under the formation of an air gap, the permanent magnet elements are arranged whose magnetic orientation towards the air gap is alternating. In certain positions of the rotor relative to the stator the permanent magnet elements are oriented at least partially in alignment with at least some of the magnetic flux conducting pieces. With this arrangement it is achieved that a magnetic flux from one leg of the magnetic flux yoke to the other leg of the magnetic flux yoke alternately flows through the magnetic flux conducting pieces and the permanent magnet elements aligned with these. Here, the magnetic flux alternates from a first axially oriented row of the magnetic flux conducting pieces and the permanent magnet elements aligned with these to a neighbouring second row and back to the first row, while progressing to and fro in an axial direction.

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Forms PCT/ISA/210 and 220 International Search Report for PCT/EP2004/O06007, Sep. 27, 2004.

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