Patent application number | Description | Published |
20130175892 | ELECTRICAL MACHINE WITH TWO AXIAL FANS - An electrical machine includes a stator, a rotor magnetically interacting with the stator, a shaft supported on the stator for rotation in a first direction of rotation and in a second direction of rotation which is opposite to the first direction of rotation, wherein the rotor is arranged on the shaft, a first axial fan mounted on the shaft on a side of the rotor for co-rotation with the shaft in the first direction of rotation and having freewheeling capability on the shaft in the second direction of rotation, and a second axial fan mounted on the shaft on the same side of the rotor as the first axial shaft for co-rotation with the shaft in the second direction of rotation and having freewheeling capability on the shaft in the first direction of rotation. | 07-11-2013 |
20130187512 | SQUIRREL-CAGE ROTOR - A squirrel-cage rotor of an asynchronous machine has a rotor bar ( | 07-25-2013 |
20130234543 | ELECTRICAL MACHINE HAVING DUAL-CIRCUIT COOLING - 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. | 09-12-2013 |
20130257197 | ELECTRIC MACHINE HAVING EFFICIENT INTERNAL COOLING - 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. | 10-03-2013 |
20140217840 | STATOR FOR AN ELECTRIC MOTOR | 08-07-2014 |
20150042185 | ELECTRICAL MACHINE HAVING A ROTOR FOR COOLING THE ELECTRICAL MACHINE - The invention relates to an electrical machine ( | 02-12-2015 |
20150069861 | ELECTRIC MACHINE WITH ROTOR INTERIOR VENTILATION - 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. | 03-12-2015 |
20150207378 | COOLING JACKET COMPRISING A SEALING MEANS - 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. | 07-23-2015 |