Abstract: In one aspect, an arrangement for cooling of an electrical machine is provided. A rotor and a stator include an air-gap arranged between the rotor and the stator. The rotor and the stator include a circulation arrangement to allow the circulation of air for cooling-purposes of the rotor and of the stator. The rotor and the stator are encapsulated by a shell which is formed to allow the flow of hot air from the rotor and the stator to a heat-exchanger. The shell is formed to allow the flow of cool air from the heat-exchanger back to the rotor and the stator for cooling-purposes. The shell includes a number of corners, while each corner is used to gather the hot air before it is guided to the heat-exchanger.

Abstract: A winding arrangement for an armature of an electric machine is provided. The winding arrangement includes a plurality of coils and a plurality of distinct winding types, wherein the coils are arranged on the armature such that each coil comprises the same number of windings and the same number of each of the distinct winding types. An armature for a generator including a plurality of coils, wherein the coils are arranged on the armature according to such a winding arrangement is also provided. A wind turbine with a generator including a rotor and a stator is also provided.

Abstract: A magnetic component part for a rotor assembly of an electromechanical transducer is provided. The magnetic component part includes a base element having a first side and an opposing second side, a permanent magnet, attached to the base element at the first side, and a mounting structure fixed to the base element at the second side and adapted to be mechanically connected to a support structure of the rotor assembly. The permanent magnet is located in an offset position with respect to a central axis of the mounting structure, which central axis extends from the mounting structure through the second side to the first side. A rotor assembly, an electromechanical transducer and a wind turbine, which are all equipped with at least four magnetic component parts are also provided as well as a method for manufacturing a rotor assembly including at least four magnetic component parts.

Abstract: A magnet assembly is disclosed. The magnet assembly includes a base element and a magnet attached to a first surface of the base element. A second surface of the base element opposite to the first surface of the base element includes a contour, which is adapted to engage with a complementary contour of a support structure of a rotor arrangement. It is further described a method for engaging a magnet assembly to a support structure of a rotor arrangement, a rotor arrangement for an electromechanical transducer, an electromechanical transducer and a wind turbine.

Abstract: In one aspect, an arrangement for cooling of an electrical machine is provided. The arrangement includes a rotor and a stator of the electrical machine, while an air-gap is between the rotor and the stator. The electrical machine includes an air-cooling-arrangement, which circulates air inside the electrical machine. The electrical machine includes a liquid-cooling-arrangement, which circulates cooling-liquid inside the electrical machine. The air-cooling arrangement and the liquid-cooling-arrangement are connected by an air-to-liquid heat-exchanger, which is applied to transport heat out from the electrical machine by the cooling-liquid.

Abstract: In one aspect, an arrangement for cooling of an electrical machine is provided. A rotor and a stator include an air-gap arranged between the rotor and the stator. The rotor and the stator include a circulation arrangement to allow the circulation of air for cooling-purposes of the rotor and of the stator. The rotor and the stator are encapsulated by a shell which is formed to allow the flow of hot air from the rotor and the stator to a heat-exchanger. The shell is formed to allow the flow of cool air from the heat-exchanger back to the rotor and the stator for cooling-purposes. The shell includes a number of corners, while each corner is used to gather the hot air before it is guided to the heat-exchanger.

Abstract: An air-gap is between a rotor and a stator. The stator comprises a number of stacked laminate-plates. The laminate-plates are positioned and fixed by a structural support and by end-plates in relation to a central-part of the stator to achieve the air-gap. A cavity is formed by the end-plates, the central-part of the stator, the air-gap and an internal surface of the rotor. An air-cooling arrangement is arranged and used to circulate a gaseous medium for cooling purposes inside the cavity.

Abstract: An apparatus for detecting a pointer includes a waveguide and a touch surface over the waveguide on which pointer contacts are to be made. At least one reflecting device extends along a first side of the waveguide and touch surface. The reflecting device defines an optical path between the interior of the waveguide and the region of interest above the touch surface. At least one imaging device looks across the touch surface and into the waveguide. The imaging device captures images of the region of interest and within the waveguide including reflections from the reflecting device.

Abstract: In one aspect, the invention is a method, which includes detecting interference in a vehicle system disposed in a vehicle. Detecting includes measuring a frequency of a signal provided from a power source used in the vehicle. Detecting also includes determining if the signal has a frequency within a frequency band used by the vehicle system.

Abstract: An apparatus for detecting a pointer within a region of interest includes a first reflective element extending along a first side of the region of interest and reflecting light towards the region of interest. A second reflective element extends along a second side of the region of interest and reflects light towards the region of interest. The second side is joined to the first side to define a first corner. A non-reflective region generally in the plane of at least one of the first and second reflective elements is adjacent the first corner. At least one imaging device captures images of the region of interest including reflections from the first and second reflective elements.

Abstract: A system is disclosed for manufacturing fully mitered step lap transformer cores which are formed from separate sheets which are laid face to face to form the separate pieces of the core. The system includes an X-shaped shear arrangement including four blades lying on an X-shape and meeting at a center point. Upstream of the X-shear is provided a hole punch so the punched hole can be moved to the center point of the X-shear and any two, three or four of the blades actuated to provide a required shape in the material to be cut. The X-shear allows the formation sequentially of all of the five sheets necessary for the core and then these are stacked simultaneously by a lifting carriage which lifts each sheet in turn while orienting it properly relative to the other sheets carried to form a single layer of the core which is then deposited upon a stacking table.