Abstract: An electric motor having a rotor with an axis of rotation and an annular stator surrounding the rotor, the stator extending along an axial direction parallel to the axis of rotation and having a first end face and a second end face pointing in opposite axial directions. The stator has exactly two stator teeth extending from an annular circumferential surface that runs between the end faces of the stator, in a radially inward direction to the rotor and facing one another in relation to the axis of rotation, a first stator slot and a second stator slot, which faces the first slot in relation to the axis of rotation, extending along the circumferential surface, between the stator teeth.

Abstract: A pump arrangement (1) at least comprising a pump (2) having a pressure side (3) and an intake side (4) and a drive unit (5) for the pump (2) which are arranged in a common housing (6), wherein the drive unit (5) is an axial flow electric drive which comprises a stator (7) which is connected to the housing (6) in a rotationally secure manner and a rotor (8) which is arranged so as to be able to be rotated with respect to the housing (6), wherein the rotor (8) is arranged with a first end face (9) opposite the stator (7) in an axial direction (10) and forms an outer conveying means (11) of the pump (2) and has with spacing from the first end face (9) on an inner circumferential face (12) a first conveying profile (13), wherein in a radial direction (14) inside the rotor (8) there is arranged an inner conveying means (15) of the pump (2) which has on an outer circumferential face (16) a second conveying profile (17) which cooperates with the first conveying profile (13) in order to convey a fluid (18).

Abstract: Disclosed is a pump assembly (1) at least comprising a pump (2) having a discharge side (3) and a suction side (4), and a drive unit (5) for the pump (2), the pump (2) and the drive unit (5) being arranged in a common housing (6), the drive unit (5) being an axial-flow electric drive comprising a stator (7), which is rotationally fixedly connected to the housing (6), and a rotor (8), which is rotatably arranged relative to the housing (6), a first end face (9) of the rotor (8) being oriented towards the stator (7) along an axial direction (10), the rotor (8) forming an outer pumping means (11) of the pump (2) and having a first pumping profile (13) on an inner circumferential surface (12); in a radial direction (14), an inner pumping means (15) of the pump (2) is arranged inside the rotor (8), said inner pumping means (15) having a second pumping profile (17) on an outer circumferential surface (16), said second pumping profile (17) interacting with the first pumping profile (13) to pump a fluid (18).

Abstract: A rotor for an axial flux motor, a radial flux motor, or a transversal flux motor, has a rotational axis which extends along an axial direction. The rotor extends in an annular manner and has a plurality of permanent magnets along the circumferential direction, the magnetization of each magnet being oriented in the circumferential direction, wherein the permanent magnets are mutually spaced along the circumferential direction, and at least one soft magnetic composite as a first material is arranged between the permanent magnets.

Abstract: An electric motor, at least having a stator and an annular rotor which are arranged next to one another along an axial direction; wherein the stator has a plurality of stator teeth which are arranged next to one another along a circumferential direction and which each extend along the axial direction. At least one coil has at least one turn is arranged on each stator tooth, wherein the at least one turn is electrically conductively connected to a printed circuit board. The printed circuit board is arranged on an end side of the stator and next to the stator along the axial direction. The printed circuit board comprises a plurality of electrical connecting lines via which the at least one turn of each coil is connected at least to other turns or to an electrical connection of the motor.

Abstract: The invention relates to an electric motor (1), comprising at least a stator (2), which extends between a first end face (3) and a second end face (4) along an axial direction (5) and has an annular yoke (6) on the first end face (3) and starting from the yoke (6) a plurality of cores (7), which each extend along the axial direction (5) over a first length (8) to the second end face (4) and are arranged adjacent to one another along a circumferential direction (9), wherein a coil (10) is arranged on each core (7), which coil extends starting from the yoke (6) along the axial direction (5) over a second length (11) toward the second end face (4), wherein the second length (11) is shorter than the first length (8), so that a portion (12) of each core (7) extends along the axial direction (5) beyond the coil (10) concerned; wherein the motor (1) additionally comprises at least one first rotor (13) which is arranged, at least on the second end face (4) along the axial direction (5) between the coils (10) and the

Abstract: A sintered part has at least one base with a first end face which faces in a first axial direction and a second end face which faces in a second axial direction. The end faces are produced in a press for producing a green body (which is subsequently sintered to form the sintered part) by applying at least one punch which can be moved along the axial directions. The sintered part has an elevation extending from the first end face towards one end at least in the axial direction over a first height, and the elevation has a first width extending transversely to the axial direction in a radial direction and at least some portions of which are smaller than 0.8 millimeters, wherein at least some portions of the sintered part have a first density along the first width, said density equaling at least 87% of the full material density.

Abstract: A method for producing a sintered part, having at least the following steps: a) providing a sintered part, said sintered part having a first end face, a second end face arranged at a distance from the first end face in an axial direction, and a circumferential surface between the end faces; b) arranging the sintered part in a tool; c) applying a first pressure force, which acts on the end faces at least in the axial direction, to the sintered part by the tool; and d) applying a second pressure force, which acts on the circumferential surface at least in a radial direction, to the sintered part, wherein the sintered part is reshaped at least by the second pressure force, or mechanically processing the sintered part. Steps c) and d) are carried out at least partly simultaneously.

Abstract: The invention relates to a claw pole stator (1) for a transverse flux machine (2). The claw pole stator (1) is made of a plurality of segments (3) that are arranged next to one another along a circumferential direction (4) so as to form the annular claw pole stator (1). Each segment (3) extends from an inner circumferential surface (5) along a radial direction (6) to an outer circumferential surface (7) and is delimited by a first lateral surface (8) and a second lateral surface (9) in the circumferential direction (4) and by a first end surface (11) and a second end surface (12) in an axial direction (10).

Abstract: A method for producing a green compact uses a pressing tool including a die, a first punch to be displaced in an axial direction, a second punch to be displaced in a radial direction through a channel in the die and a receptacle having a filling opening. The method includes locating the second punch before or during filling of a powdery material into the receptacle so as to be outwardly offset in the radial direction relative to an inner peripheral surface, filling the powdery material into the receptacle, and moving at least the first punch and the second punch and compressing the material in the receptacle, with the second punch being moved in the radial direction toward the receptacle only so far that it is disposed flush with a region of the inner peripheral surface. A pressing tool, a green compact and a sintered part are also provided.

Abstract: A claw pole stator for a transversal flux motor includes a multiplicity of segments positioned next to one another along a circumferential direction for the annular claw pole stator. Each segment extends from an inner circumferential surface along a radial direction to an outer circumferential surface and is delimited in the circumferential direction by a first side surface and a second side surface and in an axial direction by a first end surface and a second end surface. Each segment is connected by the side surfaces to at least one other segment to form the annular claw pole stator. Segments positioned adjacent each other contact each other by a first contact surface on the first side surface or by a second contact surface on the second side surface and due to the contact surfaces form a form-locking connection in the circumferential direction.

Abstract: An electric motor (1), at least having: a rotor (2) with an axis of rotation (3) and an annular stator (4) surrounding the rotor (2), the stator extending along an axial direction (5) parallel to the axis of rotation (3) and having a first end face (6) and a second end face (7) pointing in opposite axial directions (5); wherein the stator (4) has exactly two stator teeth (8, 9) extending from an annular circumferential surface (10) that runs between the end faces (6, 7) of the stator (4), in a radially inward direction (11) to the rotor (2) and facing one another in relation to the axis of rotation (3), a first stator slot (12) and a second stator slot (13), which faces the first slot in relation to the axis of rotation (3), extending along the circumferential surface (10), between the stator teeth (8, 9).

Abstract: An electric motor (1), at least having: a housing (2) and a stator (3) situated therein with at least a plurality of coils (4); and a rotor (5) with at least one magnet (6), an axis of rotation (7) and an outer circumferential surface (8); wherein: the stator (3) and the rotor (5) are adjacent to one another along the axis of rotation (7); the rotor (5) has a fluid conduction structure (9) between the axis of rotation (7) and the outer circumferential surface (8); the fluid conduction structure (9) has at least one surface (13) extending at least radially (10) and being inclined relative to at least a circumferential direction (11), or to an axial direction (12) running parallel to the axis of rotation (7); and at least part of a fluid flow (14), transported through the fluid conduction structure (9) inside the housing (2) during the operation of the motor (1), can be conducted over the coils (4).

Abstract: The invention relates to a fluid pump, driven by means of an electric motor, which is coupled to a pump rotor of the fluid pump, wherein the electric motor is an axial-flux electric motor, the electric-motor rotor of which is also the pump rotor, and the pump rotor and the electric-motor rotor are accommodated in a common housing, in which the pump rotor and the electric-motor rotor rotate while integrated as combination rotor in a disk shape, wherein the common housing has a fluid inlet and a fluid outlet to the combination rotor. The invention further relates to a production method for such a fluid pump.

Abstract: A method for operating a pump assembly, wherein the pump assembly has at least one first drive means for conveying a fluid and an electric motor for driving the first drive means, the electric motor comprising at least one stator and one rotor, the rotor being connected at least to the first drive means via a driveshaft. The electric motor draws power at least: i. in order to heat the rotor by means of induction; or ii. in order to drive the rotor, the driveshaft and the first drive means so that these components rotate about a common rotation axis at a speed of more than “0” revolutions per minute.

Abstract: The invention relates to a rotor (1) for an axial flux motor (2), a radial flux motor (23), or a transversal flux motor (24), having a rotational axis (4) which extends along an axial direction (3). The rotor (1) extends in an annular manner and has a plurality of permanent magnets (6, 7) along the circumferential direction (5), the magnetization of each magnet being oriented in the circumferential direction (5), wherein the permanent magnets (6, 7) are mutually spaced along the circumferential direction (5), and at least one soft magnetic composite as a first material (8) is arranged between the permanent magnets (6, 7).

Abstract: A method for producing a green compact uses a pressing tool including a die, a first punch to be displaced in an axial direction, a second punch to be displaced in a radial direction through a channel in the die and a receptacle having a filling opening. The method includes locating the second punch before or during filling of a powdery material into the receptacle so as to be outwardly offset in the radial direction relative to an inner peripheral surface, filling the powdery material into the receptacle, and moving at least the first punch and the second punch and compressing the material in the receptacle, with the second punch being moved in the radial direction toward the receptacle only so far that it is disposed flush with a region of the inner peripheral surface. A pressing tool, a green compact and a sintered part are also provided.

Abstract: A claw pole stator for a transversal flux motor includes a multiplicity of segments positioned next to one another along a circumferential direction for the annular claw pole stator. Each segment extends from an inner circumferential surface along a radial direction to an outer circumferential surface and is delimited in the circumferential direction by a first side surface and a second side surface and in an axial direction by a first end surface and a second end surface. Each segment is connected by the side surfaces to at least one other segment to form the annular claw pole stator. Segments positioned adjacent each other contact each other by a first contact surface on the first side surface or by a second contact surface on the second side surface and due to the contact surfaces form a form-locking connection in the circumferential direction.

Abstract: The invention relates to a pump assembly, at least comprising a first housing, in which at least one first drive means for conveying a fluid is rotatably mounted, wherein a first drive shaft of the first drive means extends at least through a first side wall of the first housing in an axial direction; wherein, outside of the first housing, at least one first rotor of a first axial-flux electric drive is arranged on the first drive shaft, wherein the first axial-flux electric drive has only one stator.

Abstract: The invention relates to a fluid pump, driven by means of an electric motor, which is coupled to a pump rotor of the fluid pump, wherein the electric motor is an axial-flux electric motor, the electric-motor rotor of which is also the pump rotor, and the pump rotor and the electric-motor rotor are accommodated in a common housing, in which the pump rotor and the electric-motor rotor rotate while integrated as combination rotor in a disk shape, wherein the common housing has a fluid inlet and a fluid outlet to the combination rotor. The invention further relates to a production method for such a fluid pump.