Abstract: A pole piece structure is provided to be used as part of an active rotor structure for an electrical rotary machine, wherein the active rotor structure is circular comprising pole pieces and permanent magnets magnetized in the circumferential direction of the rotor structure, wherein the rotor pole piece structure is a single structure with at least two individually spaced pole pieces connected by an integration bridge. Further provided is a method of manufacturing a rotor pole piece structure and a rotor for an electrical machine with a rotor pole piece structure. The assembly of magnets to the pole pieces is significantly enhanced using these rotor pole piece structures as described.

Abstract: A rotor for a modulated pole machine, the modulated pole machine including a stator, the rotor, and an active gap between respective interface surfaces of the rotor and the stator for communicating magnetic flux between the stator and the rotor, the rotor being adapted to rotate relative to the stator around an axis of the rotor, and the rotor including a plurality of permanent magnets separated from each other in the circumferential direction by pole pieces; wherein each pole piece includes an interface surface facing the active air gap, wherein the interface surface of one or more of the pole pieces includes different portions having a different radial distance from the axis.

Abstract: A stator for an electric machine, the stator including a stator core and a winding. The stator core including an annular stator core back component providing a magnetic flux path in a circumferential direction and in an axial direction of the annular stator core back component; and a plurality of stator pole components each including a mounting part mounted to the stator core back component, an interface part defining an interface surface facing an active air gap between the stator and a rotor of the electrical machine; and a radially oriented tooth part extending radially from the annular stator core component and connecting the interface part with the mounting part.

Abstract: A hub electric motor unit for a motor-driven or motor-assisted vehicle, the vehicle comprising a frame, a wheel having a hub and a wheel rim connected to the hub by a plurality of spokes; the hub electric motor unit comprising a shaft connectable to the frame of the vehicle, a stator unit mounted on the hub shaft, a rotor disposed around and coaxially with the hub shaft; a hub shell rotatably mounted on the hub shaft, wherein the hub shell comprises two cap members axially disposed on respective sides of the rotor; wherein each cap member comprises a connecting part for connecting a respective subset of the spokes.

Abstract: A compaction tool is provided for compacting an element from metal powder where the element has uniform axially displaced protrusions, and the tool comprises a die and a top and a bottom punch with punch surfaces. The top and bottom punch comprises displaceable opposing punch surfaces for displacing the metal powder there between before compacting the element. Additionally provided are a method for compacting an element from metal powder and an element made from such a method.

Abstract: A stator core section for a stator of a modulated pole machine, the modulated pole machine including the stator, a moving device, and an active gap between respective interface surfaces of the moving device and the stator for communicating magnetic flux between the stator and the moving device, the moving device being adapted to move relative to the stator in a direction of motion, wherein the stator core section includes a stator core back from which a plurality of teeth extend, each tooth extending in a respective first direction defining a direction towards the rotor, the teeth being arranged along a second direction defining the direction of motion, each tooth having at least one side wall facing a neighbouring tooth and an interface surface facing the active gap, the interface surface and the side wall forming an edge connecting the interface surface and the side wall.

Abstract: A hub electric motor unit for a motor-driven or motor-assisted vehicle, the vehicle comprising a frame, a wheel having a hub and a wheel rim connected to the hub by a plurality of spokes; the hub electric motor unit comprising a shaft connectable to the frame of the vehicle, a stator unit mounted on the hub shaft, a rotor disposed around and coaxially with the hub shaft; a hub shell rotatably mounted on the hub shaft, wherein the hub shell comprises two cap members axially disposed on respective sides of the rotor; wherein each cap member comprises a connecting part for connecting a respective subset of the spokes.

Abstract: An electrical rotary machine is provided comprising a first stator core section being substantially circular and including a plurality of teeth, a second stator core section being substantially circular and including a plurality of teeth, a coil arranged between the first and second circular stator core sections, and a rotor including a plurality of permanent magnets. The first stator core section, the second stator core section, the coil and the rotor are encircling a common geometric axis, and the plurality of teeth of the first stator core section and the second stator core section are arranged to protrude towards the rotor. Additionally, the teeth of the second stator core section are circumferentially displaced in relation to the teeth of the first stator core section, and the permanent magnets in the rotor are separated in the circumferential direction from each other by axially extending pole sections made from soft magnetic material.

Abstract: A rotor for a modulated pole machine, the rotor being configured to generate a rotor magnetic field for interaction with a stator magnetic field of a stator of the modulated pole machine, wherein said rotor includes: a tubular support structure defining a circumferential mounting surface, the tubular support structure including a plurality of elongated recesses in the mounting surface, and a plurality of permanent magnets arranged at the mounting surface of the tubular support structure and magnetised in the circumferential direction of said rotor so as to generate the rotor magnetic field, the permanent magnets being separated from each other in the circumferential direction of the rotor by axially extending rotor pole sections for directing the rotor magnetic field generated by said permanent magnets in a radial direction, wherein at least one permanent magnet or one rotor pole section extends at least partly into one of the recesses.

Abstract: A method for producing a core and a method for producing an electrical machine. Said core has a body of soft magnetic material having a plurality of teeth and at least one magnetic flux cross section area enlarging element being made from a composite of a soft magnetic powder and a binder, said magnetic flux area enlarging element being arranged onto a tooth of said body.

Abstract: A pole piece structure is provided to be used as part of an active rotor structure for an electrical rotary machine, wherein the active rotor structure is circular comprising pole pieces and permanent magnets magnetised in the circumferential direction of the rotor structure, wherein the rotor pole piece structure is a single structure with at least two individually spaced pole pieces connected by an integration bridge. Further provided is a method of manufacturing a rotor pole piece structure and a rotor for an electrical machine with a rotor pole piece structure. The assembly of magnets to the pole pieces is significantly enhanced using these rotor pole piece structures as described.

Abstract: A compaction tool is provided for compacting an element from metal powder where the element has uniform axially displaced protrusions, and the tool comprises a die and a top and a bottom punch with punch surfaces. The top and bottom punch comprises displaceable opposing punch surfaces for displacing the metal powder there between before compacting the element. Additionally provided are a method for compacting an element from metal powder and an element made from such a method.

Abstract: A gear lever (7) is arranged between the driving seat and the passenger seat in a truck. The gear lever (7) incorporates a disengageable locking mechanism (34) by means of which it is possible to lower the gear lever (7) from a substantially vertical position of use to a position in which it does not limit the driver's mobility in the cab. When the gear lever (7) has been lowered, the driver can move from the driving side to the passenger side of the truck.