| 摘要 |
<p>The invention relates to a linear machine having a primary part (20), which forms a holder (11) about an axis A and comprises a plurality of annular primary coils (21) for generating a magnetic field in the holder (11), wherein the primary coils are disposed concentrically to the axis A, can be supplied with alternating current and spaced by intermediate elements (22), and having a secondary part (30), which can be moved relative to the primary part (20) through the magnetic field in the holder (11) along the axis A and is provided with secondary coils (31) comprising superconductor windings. In order to create a linear motor that enables high power densities, the intermediate elements (22) are made of non-magnetizable material, and the primary coils (21) and secondary coils (31) are arranged with air gap windings, wherein the secondary coils (31) are made of a high-temperature superconductor and direct current can be or is applied to them. With the linear motors, power densities of more than 18 N/cm2 are achieved in the holder (11).</p> |
