Patent ID: 7279820

Claim:
A machine with transversal flux ( 10 ), comprising a stator ( 12 ) and a rotor ( 14 ), wherein the stator comprises a coil arrangement ( 28 ) and the rotor is provided with permanent magnet elements ( 50 ), the coil arrangement ( 28 ) comprises at least one cylindrical winding and is encompassed by a magnetic flux yoke ( 30 ) which in a sectional view along a center longitudinal axis (M) of the coil arrangement ( 28 ) is approximately C-shaped and comprises a leg ( 32 ) at each end which at least partially encompasses one face each of the coil arrangement ( 28 ), at one surface area ( 28 a ) of the coil arrangement ( 28 ), which faces the permanent magnet elements ( 50 ), several axially oriented magnetic flux conducting pieces ( 38 ) are arranged coaxially with the center longitudinal axis (M) of the coil arrangement ( 28 ) in several rows which are spaced in a circumferential direction, the permanent magnet elements ( 50 ) are spaced from the magnetic flux conduction pieces ( 38 ) in the radial direction by an intermediate air gap ( 16 ), the permanent magnet elements ( 50 ) are provided in several rows of permanent magnet elements ( 50 ) each, which are circumferentially spaced from each other, and the magnetic orientation of adjacent permanent magnet elements ( 50 ) is alternating, and the permanent magnet elements ( 50 ) in certain positions of the rotor ( 12 ) relative to the stator ( 14 ) are oriented at least partially in alignment with at least some of the magnetic flux conducting pieces ( 38 ), wherein the two legs ( 32 ) of the magnetic flux yoke ( 30 ) extend with an end portion ( 34 ) each from the respective faces of the coil arrangement ( 28 ) to that surface area ( 28 a ) of the annular cylindrical coil arrangement ( 28 ) at which the magnetic flux conducting pieces are arranged, and wherein the two end portions ( 34 ) are provided with recesses ( 42 ) into which protrude adjacent magnetic flux conducting pieces ( 38 ).