Patent ID: 6717297
Filing Date: 2004-04-06
Classification: F02B,H02K

Abstract:
An electrical machine operating according to the transversal including at least one first machine unit, which comprises:a stator, which includes a plurality of magnetic flux conductors and an electric conductor forming a winding extending in a substantially closed winding path through each magnetic flux conductor; a first movable element, which includes a number of permanent magnet elements provided in a rod-like configuration and which is movable in a reciprocating movement in relation to the stator along a first movement path in a space having a finite length and being formed by at least some of said magnetic flux conductors; a second movable element, which includes a number of permanent magnet elements provided in a rod-like configuration, and which is movable in a reciprocating movement in relation to the stator along a second movement path extending in parallel with the first movement path, wherein the substantially closed winding path includes a first current carrying portion, which extends substantially in parallel with the first movement path, and a second current carrying portion, which extends substantially in parallel with the second movement path, wherein the first current carrying portion of the winding path is associated substantially with a first half of said magnetic flux conductor, and the second current carrying portion of the winding path is associated substantially with a second half of said magnetic flux conductor, wherein the magnetic flux conductors of said first half is arranged to form, together with one of said permanent magnet elements of said first movable element, a closed magnetic flux circuit extending around said first current carrying portion, wherein each magnetic flux conductor of said second half is arranged to form, together with one of said permanent magnet elements of said second movable element, a close magnetic flux circuit extending around said second current carrying portion, wherein the magnetic flux conductors are arranged in an alternating order with respect to a direction of the magnetic flux in relation to the permanent magnet elements in the respective magnetic flux circuit, and wherein each magnetic flux circuit includes a first gap between a first pole of the permanent magnet elements of the circuit and an end surface of the magnetic flux conductor of the circuit, and a second gap between a second pole of the permanent magnet elements of the circuit and a second end surface of the magnetic flux conductor of the circuit.