Abstract: The coil winding has an electrical conductor for an electrical machine and includes at least two layers. The electrical conductor, following its longitudinal extension, runs inwardly wound in a first of the at least two layers, and then extends to a second of the at least two layers and runs outwardly wound in the second layer. The electrical machine includes at least one such coil winding. The hybrid electric aircraft is in particular an airplane and includes such an electrical machine and/or at least one such coil winding.

Abstract: A method for producing a coil includes winding a wire in order to produce a wound coil, and stretching the wound coil from an initial state into a stretched state with an increased spread. The method includes providing the wound coil, in the stretched state, with a coating, and transferring the wound coil from the stretched state back into a state of smaller spread.

Abstract: The invention relates to a segmented coil carrier (20; 20?) for an electric machine (2), comprising a plurality of separately formed, interconnected segments (1) with in each case one carrier (10) with a shaft (100) and a coil (11) surrounding the shaft (100), a groove (N) being formed between two adjacent carriers (10); and a groove wedge arranged in the groove (N).

Abstract: A magnetic core for an electromagnetic transducer having magnetic steel laminates that are stacked in layers is provided. The magnetic core includes at least one slot that is formed in at least one of the magnetic steel laminates. The at least one slot is free of electrically conductive material. A stator including a magnetic core of this kind, a rotatable electrical machine including a stator of this kind, and a vehicle including an electrical machine of this kind are also provided.

Abstract: The coil winding has an electrical conductor for an electrical machine and includes at least two layers. The electrical conductor, following its longitudinal extension, runs inwardly wound in a first of the at least two layers, and then extends to a second of the at least two layers and runs outwardly wound in the second layer. The electrical machine includes at least one such coil winding. The hybrid electric aircraft is in particular an airplane and includes such an electrical machine and/or at least one such coil winding.

Abstract: The invention relates to an electrical linear drive, in particular for a pump system of an artificial heart, with a movable part and a stationary part, wherein the stationary part is formed by a permanent magnet arrangement and the movable part is formed by a coil arrangement, or vice versa, and wherein the coil arrangement and the permanent magnet arrangement can be moved to and fro relative to each other in an axial direction by means of current passed through the coil arrangement. The invention further relates to an electrical linear drive of this kind in which the permanent magnet arrangement is designed as a stack of frame-shaped, in particular ring-shaped magnets, which are magnetized alternately radially and axially in the axial direction, such that the magnetic field is strengthened on one side of the frame.

Abstract: The invention relates to an electrical linear drive, in particular for a pump system of an artificial heart, with a movable part and a stationary part, wherein the stationary part is formed by a permanent magnet arrangement and the movable part is formed by a coil arrangement, or vice versa, and wherein the coil arrangement and the permanent magnet arrangement can be moved to and fro relative to each other in an axial direction by means of current passed through the coil arrangement, wherein the coil arrangement (1) is arranged in an axially extending air gap (5) of the permanent magnet arrangement (2) whose magnetic material is magnetized in the axial direction and which, at least at its two axial ends, has inner and outer pole shoes (6a, 6b) which lie radially opposite each other and are spaced apart by the air gap (5), as a result of which the magnetic field in the air gap (5) is concentrated in the radial direction in the area of the mutually facing pole shoes (6a, 6b), as a result of which at least one m