Abstract: A rotor designed as a reluctance rotor includes a laminated core which defines an axis and has end faces. The laminated core includes sheets which are at least partly axially layered, with the sheets having flux-conducting portions and flux-blocking portions to form a specified number of poles. A cage made of electric conductors runs in a substantially axial direction and is connected at the end faces of the laminated core by short-circuit rings. The conductors are located in a radially outer region of at least some of the flux-blocking portions arranged one behind another substantially in the axial direction, with the conductors defining conductor bars formed by conductive material at a quantity determinative to define an internal diameter of the conductor bars.

Abstract: A cooling jacket includes a jacket having an axial end provided with an opening, and a sealing structure which is arranged in the opening. A member selected from the group consisting of the jacket and the sealing structure has a radial deformation to connect the jacket to the sealing structure. The radial deformation is configured to extend into the opening.

Abstract: A rotor for an electrical machine includes a laminated core with stack of sheets extending in an axial direction from a first axial end to a second axial end. The stack of sheets has layered layers in the axial direction. Each layer has a plurality of sheet areas with flow conduction blocks situated between adjacent sheet areas. At least one flow conduction block is cast with a non-ferromagnetic potting compound. The potting compound extends in the at least one flow conduction block from the first axial end to the second axial end. Fastened sheet areas, respectively, having at least one web protrudes into the potting compound. The protruding web, at least in part, extends in a direction, having a component in the axial direction. In each layer, at least one sheet area is a fastened sheet area.

Abstract: A reluctance rotor for an electric machine includes rotor lamination layers made of a ferromagnetic material, wherein each rotor lamination layer has a flux barrier formed by a recess in the rotor lamination layer. In order to toughen the reluctance rotor for a high torque and a high rotational speed, the reluctance rotor has an intermediate part with recesses arranged between a first and a second rotor lamination layer, and separators delimiting the recesses from one another. The recesses of the intermediate part and the separators are arranged axially between the flux barriers, wherein the recesses of the intermediate part and the flux barriers together delimit a space. The space is cast with a non-ferromagnetic casting compound.

Abstract: A rotor for a reluctance motor includes a laminated core having a number of rotor sheet metal blanks. Each rotor sheet metal blank includes flux barriers cast with a non-ferromagnetic casting compound and at least one soft-magnetic rotor sheet which delimits the flux barriers. Flux barriers of adjacent rotor sheet metal blanks are arranged offset relative to one another so that the flux barriers of one of the adjacent rotor sheet metal blanks are delimited in an axial direction at least partially by the rotor sheets of the other one of the adjacent rotor sheet metal blanks, with the casting compound of the flux barriers adhering in an adhesion zone to the rotor sheets.

Abstract: The invention relates to an electrical machine (1, 51), in particular an asynchronous machine, comprising a stator (2), a rotor (4) which is rotatably mounted about a rotation axis (3) and magnetically interacts with the stator (2) during operation of the electrical machine (1, 51), a shaft (5) on which the rotor (4) is fixed and which has an axial hole (6), and an inflow element (7, 47) which extends into the axial hole (6) such that a coolant (15), in particular a cooling liquid (15), can flow into the axial hole (6) from the inflow element (7, 47). The invention also relates to a cooling system (50) comprising an electrical machine (1, 51) and a coolant circuit (55) for transporting the coolant (15), in particular the cooling liquid (15), through the axial hole (6), and to a vehicle (61) comprising a cooling system (50).

Abstract: A stator for an electric motor includes a substantially hollow-cylindrical stator stack provided with wire windings and an end winding, which adjoins the stator stack in the axial direction. The stator stack includes a number of slots, wherein a coolant line is inserted into the respective slot. To improve efficiency of the electric motor, a section of the respective coolant line extends into the region of the end winding.

Abstract: A reluctance rotor for an electric machine includes rotor lamination layers made of a ferromagnetic material, wherein each rotor lamination layer has a flux barrier formed by a recess in the rotor lamination layer. In order to toughen the reluctance rotor for a high torque and a high rotational speed, the reluctance rotor has an intermediate part with recesses arranged between a first and a second rotor lamination layer, and separators delimiting the recesses from one another. The recesses of the intermediate part and the separators are arranged axially between the flux barriers, wherein the recesses of the intermediate part and the flux barriers together delimit a space. The space is cast with a non-ferromagnetic casting compound.

Abstract: For reducing vibrations and noise in electrical machines a rotor is mounted in a magnetic alignment device while a bearing shield is loosely held relative to a stator. The rotor is driven by the stator and vibrations of the rotor are detected. A magnetic alignment device is controlled so as to reduce the vibrations. Finally the bearing shield is fixed to the stator in a position determined by the controlling of the magnetic alignment device. Thus electromagnetic forces are taken into consideration during vibration and noise reduction.

Abstract: The invention relates to a reluctance rotor lamination that permits easy assembly of a rotor, in particular by means of press fitting, wherein there must be sufficient stability. For this purpose, a reluctance rotor lamination (18) is provided, wherein an opening (6, 42) for stress reduction is arranged on each d axis half (32) in each flux-conducting section (24), such that a partial flux-conducting section (36, 37) is formed on each of the two sides of each d axis half (32) in each flux-conducting section (24). The sum of the smallest cross-section of each of the two partial flux-conducting sections (36, 37) is substantially greater than or equal to a smallest cross-sectional area of the flux-conducting section (36, 37) perpendicular to each partial d axis half (32) radially above the opening, such that the opening (6, 42) does not cause magnetic impairment.

Abstract: A cage rotor for an synchronous machine includes a laminated rotor core, shorting bars arranged inside the laminated rotor core, shorting rings which are cast onto the laminated rotor core and which electrically interconnect the shorting bars to front sides of the laminated rotor core, and heat pipes introduced into the laminated rotor core in the axial direction such that they protrude onto the front side from the laminated rotor core and protrude into the shorting rings.

Abstract: A device for treating ballast water includes a housing having a ballast water inlet and a ballast water outlet, a hydrocyclone connected to the ballast water inlet and having a particle outlet discharging particles from the device and an outlet carrying particle-depleted ballast water, a filter surrounding the hydrocyclone, which filter divides the device into an intermediate chamber disposed between hydrocyclone and filter and an outer chamber disposed between filter and housing. The intermediate chamber is communicatively connected to the outlet of the hydrocyclone carrying particle-depleted ballast water. Ultrasound is generated to act on the outer chamber and/or the filter, UV light is generated to act on the outer chamber and/or the filter, and a gas is introduced into the outer chamber of the device.

Abstract: An electrical machine includes a stator and a rotor which is pivotally mounted about an axis of rotation and interacts magnetically with the stator during operation of the electrical machine. The rotor has a rotor cooling system for cooling the rotor using a first coolant flow, and the stator is cooled by a stator cooling system using a second coolant flow.

Abstract: An electric machine includes a stator device having axial first cooling channels, and second and third cooling channels. The third cooling channels are arranged in the first cooling channels and extend at least substantially along an entire axial length thereof. The stator device is configured for inflow and outflow of a liquid cooling medium at least partially through the second cooling channels and for the liquid cooling medium to be conducted through the third cooling channels. A rotor is arranged on a rotor shaft for rotation around a rotational axis. Limiting elements are mounted on the stator device axially on both sides to thereby bound an internal rotor space which is in communication with axial ends of the first cooling channels of the stator device to thereby establish an internal air-cooling circuit from the internal rotor space through the first cooling channels and back into the internal rotor space.

Abstract: A rotor for a reluctance motor having a laminate stack of layers is disclosed. Each layer has at least one magnetically-conductive rotor lamination, and in each layer a plurality of flux-conducting sections are formed by the at least one rotor lamination, which flux-conducting sections are separated from one another by a nonmagnetic region. The invention addresses the problem of enabling a high torque and a high speed. For this purpose, an insert disk is arranged between at least two of the layers, connected in each case to at least two flux-conducting sections of one of the layers or both of the layers between which said insert disk is arranged and, as a result, connects said flux-conducting sections to one another beyond the nonmagnetic region located there between.

Abstract: An electric machine includes a stator, a rotor interacting magnetically with the stator, a housing surrounding the stator and rotor, and a hollow shaft provided for arrangement of the rotor and mounted on the housing. A radial fan is mounted rotationally fixed on the hollow shaft on the ventilation side. A section of a fan blade of the radial fan extends axially away from the housing to a greater extent than the hollow shaft. A guide element with radially extending plate is arranged in the hollow shaft, wherein the plate is arranged axially further away from the housing than the end side of the hollow shaft on the ventilation side. An inner coolant flow can thus be delivered from the section of the fan blade out of the hollow shaft through a passage between the end side of the hollow shaft on the ventilation side and the plate radially outwards.

Abstract: The invention relates to an electric machine (100) comprising a stator (107) and a rotor (101), wherein the rotor (101) comprises a hollow shaft (102), wherein a closed hollow space (103) is formed by means of the hollow shaft (102), wherein the closed hollow space (103) is provided for receiving a cooling agent, wherein a three-dimensional transport structure (200) is provided in the closed hollow chamber (103) for transporting the cooling agent. The three-dimensional structure can, for example, be produced by means of applying an adaptive material.

Abstract: A rotor for a reluctance motor includes a laminated core having a number of rotor sheet metal blanks. Each rotor sheet metal blank includes flux barriers cast with a non-ferromagnetic casting compound and at least one soft-magnetic rotor sheet which delimits the flux barriers. Flux barriers of adjacent rotor sheet metal blanks are arranged offset relative to one another so that the flux barriers of one of the adjacent rotor sheet metal blanks are delimited in an axial direction at least partially by the rotor sheets of the other one of the adjacent rotor sheet metal blanks, with the casting compound of the flux barriers adhering in an adhesion zone to the rotor sheets.

Abstract: A cage rotor of a rotary asynchronous machine includes an axially laminated core having substantially axially extending grooves, at least one electrical conductor disposed in the grooves and composed of at least of two partial conductors constructed from materials having different electrical conductivities and different mechanical strengths, wherein the partial conductor made of the higher-strength material is disposed radially farther outwardly at least in sections of the groove, as viewed along the axial extent of the respective, and a short-circuit ring arranged on a respective end face side of the laminated core and electrically-conductively interconnecting the electrical conductors that are disposed in the respective grooves and protrude axially from the laminated core.

Abstract: The invention relates to a method for treating a liquid, comprising the steps: introducing the liquid to be treated into a reaction chamber, subjecting the liquid to ultrasound, irradiating the liquid with UV radiation as the liquid is being subjected to ultrasound, and discharging the treated liquid from the reaction chamber. The method is characterized in that as the liquid is being subjected to ultrasound and is being irradiated with UV radiation, the liquid is simultaneously permeated by a gas.