Patent application number | Description | Published |
20080272669 | Electric Machine, in Particular a Synchronous Motor, With Redundant Stator Windings - The electrical machine ( | 11-06-2008 |
20090091210 | DIRECT DRIVE FOR LARGE-SCALE DRIVES - The invention relates to a direct drive for large-scale drives, comprising a stator ( | 04-09-2009 |
20100102651 | ARRANGEMENT FOR COOLING OF AN ELECTRICAL MACHINE - An arrangement for cooling an electrical machine is provided. A stator of the electrical machine contains a plurality of stacked laminate plates, each laminate plate having a plurality of slots on one side. The slots of the stacked laminate plates are forming channels, the channels containing metal-winding of electrical coils. A metal cooling-pipe is provided within at least one channel for cooling the laminate plates. | 04-29-2010 |
20100230520 | Mill for milling rough, stone-like bulk material with parallel to the axis drive - The invention relates to a mill for milling rough, stone-like bulk material, comprising a milling plate ( | 09-16-2010 |
20100232984 | Compressor Unit and Use of a Cooling Medium - A compressor unit comprises a centrifugal compressor for compressing a gas, having a rotor with one or more compressor impellers, and an electric motor having a stator and a rotor, for driving the rotor of the compressor. The compressor and the electric motor are accommodated in a common gas-tight housing which is provided with a gas inlet and a gas outlet. The rotor of the compressor and the rotor of the electric motor are arranged on a common rotor shaft which is mounted in magnetic bearings. The rotor shaft comprises a single unit and is mounted in two radial magnetic bearings, each in the vicinity of one end of the common rotor shaft, and one axial magnetic bearing, which is arranged in the vicinity of one of the radial bearings. | 09-16-2010 |
20100239441 | COMPRESSOR SYSTEM FOR UNDERWATER USE IN THE OFFSHORE AREA - The invention relates to a compressor system ( | 09-23-2010 |
20120299433 | STATOR OF A PERMANENTLY EXCITED ROTATING ELECTRIC MACHINE - The invention relates to a stator of a permanently excited rotating electric machine having first and second coil groups arranged directly sequentially in the circumferential direction, wherein a first central tooth having a first central tooth width MB is disposed at the center of the first coil group, wherein a first boundary tooth having a first boundary tooth width RB is disposed between the first and the second coil groups, wherein the first boundary tooth width RB is substantially RB=a*ZB and the first central tooth width MB is substantially MB=(2a)*ZB, wherein the factor a is greater than 0 and less than 1. The detent moments and/or oscillating moments occurring in a permanently excited rotating electric machine can thereby be reduced. | 11-29-2012 |
20120299434 | STATOR OF A PERMANENTLY EXCITED ROTATING ELECTRIC MACHINE - A stator of a permanently excited rotating electric machine has a plurality of segments abutting each other at radially and axially extending segment boundaries. Each segment has a plurality of radially projecting teeth of uniform width and grooves extending in the axial direction and alternatingly arranged in a peripheral direction of the stator. Abutting segments touch each other at the segment boundaries such that an outer tooth of one segment touches an outer tooth of an abutting segment, wherein a sum of the widths of the two teeth touching each other at the corresponding segment boundary is greater than the uniform width of at least a majority of the plurality of teeth of a segment that are not arranged directly at a segment boundary of that segment. Detent moments and/or oscillating moments occurring in a permanently excited rotating electric machine can thereby reduced. | 11-29-2012 |
20130154429 | ACTIVE PART OF AN ELECTRICAL MACHINE HAVING INCLINED COILS IN THE WINDING HEAD AREA - An active part of an electrical machine has a carrier, a plurality of coils which are arranged on the carrier and which each include a plurality of sub-conductors and a winding head area, in which the coils project out of the carrier in a curved shape, respectively and are connected to one another. At least one of the plurality of coils has a coil arc in the winding head area, and the center line of the coil runs in one plane in the coil arc. The sub-conductors of one coil run parallel to the plane in the coil arc of the coil and themselves in each case form sub-conductor arcs. The vertices of the sub-conductor arcs of the coil form a line of inclination which runs at an angle to the plane. | 06-20-2013 |
20130270954 | ROTOR FOR AN ELECTRICAL MACHINE - A rotor for an electrical machine has a rotor body and permanent magnets arranged on the circumference of the rotor body, wherein those areas of the circumference of the rotor body which are covered by the permanent magnets have at least one recess and/or that side of the permanent magnets which faces the circumference of the rotor body has at least one recess. Each recess is configured as a slot which extends in parallel relationship to a circumference-proximal side of the permanent magnets. Removably insertable in the recesses are ferromagnetic bars to allow removal of the permanent magnets. | 10-17-2013 |
20140028138 | METHOD FOR ASSEMBLING AN ELECTRICAL MACHINE - In a method an inner segment is first pre-assembled on each of a number of outer segments by at least one fixing element, so as to produce a plurality of segment modules having each a predetermined air gap between the inner segment and the outer segment. The inner segments and the outer segments are assigned to the rotor or stator of the electrical machine. The inner segments of the plurality of segment modules are fastened to an inner assembly device (for example a hub). The outer segments of the plurality of segment modules are fastened to an outer assembly device (for example a supporting structure). Finally, the fixing elements between the inner segments and the outer segments are removed. | 01-30-2014 |
Patent application number | Description | Published |
20100102651 | ARRANGEMENT FOR COOLING OF AN ELECTRICAL MACHINE - An arrangement for cooling an electrical machine is provided. A stator of the electrical machine contains a plurality of stacked laminate plates, each laminate plate having a plurality of slots on one side. The slots of the stacked laminate plates are forming channels, the channels containing metal-winding of electrical coils. A metal cooling-pipe is provided within at least one channel for cooling the laminate plates. | 04-29-2010 |
20100230520 | Mill for milling rough, stone-like bulk material with parallel to the axis drive - The invention relates to a mill for milling rough, stone-like bulk material, comprising a milling plate ( | 09-16-2010 |
20100232984 | Compressor Unit and Use of a Cooling Medium - A compressor unit comprises a centrifugal compressor for compressing a gas, having a rotor with one or more compressor impellers, and an electric motor having a stator and a rotor, for driving the rotor of the compressor. The compressor and the electric motor are accommodated in a common gas-tight housing which is provided with a gas inlet and a gas outlet. The rotor of the compressor and the rotor of the electric motor are arranged on a common rotor shaft which is mounted in magnetic bearings. The rotor shaft comprises a single unit and is mounted in two radial magnetic bearings, each in the vicinity of one end of the common rotor shaft, and one axial magnetic bearing, which is arranged in the vicinity of one of the radial bearings. | 09-16-2010 |
20100239441 | COMPRESSOR SYSTEM FOR UNDERWATER USE IN THE OFFSHORE AREA - The invention relates to a compressor system ( | 09-23-2010 |
20110163550 | WINDING PLAN FOR A SEGMENTED STATOR OF A DYNAMO-ELECTRIC MACHINE - A segmented annular stator for a dynamo-electric machine is disclosed which simplifies transport and assembly of the machine. The segment has a cross section essentially shaped as a circular arc and includes a first and a second segment boundary configured for attachment to an additional segment, a corresponding coil associated with each phase of a three-phase system, a first conductor, and a second conductor. The first conductor is connected to the second conductor via an end connection in an area of end windings, such that a first coil associated with a first phase surrounds second and third coils associated with second and third phases of the three-phase system. | 07-07-2011 |
20120056571 | ELECTRIC DRIVE SYSTEM - The invention relates to a drive system comprising a liquid-cooling electric machine ( | 03-08-2012 |
20120098271 | ROTOR AND METHOD FOR MANUFACTURING A ROTOR OF AN ELECTRIC MACHINE - The invention relates to methods for manufacturing a rotor ( | 04-26-2012 |
20120217756 | WIND POWER GENERATOR WITH INTERNAL COOLING CIRCUIT - A wind power generator with a closed internal cooling circuit has a stator that is implemented as sheet metal and includes a winding system which forms winding heads at the end faces of the stator. The stator is enclosed by a cooling jacket at least in the region of the laminated core, wherein permanent magnets of a rotor are disposed on a magnet wheel jacket embodied as a hollow shaft. The magnet wheel jacket is connected in a rotationally fixed manner to a shaft or shaft stubs by way of support elements at its end faces, wherein in its interior the hollow shaft has at least one tube whose lateral surface area runs at an equidistant clearance from the magnet wheel jacket. Blowers are mounted at the end faces of the rotor. | 08-30-2012 |
20120299433 | STATOR OF A PERMANENTLY EXCITED ROTATING ELECTRIC MACHINE - The invention relates to a stator of a permanently excited rotating electric machine having first and second coil groups arranged directly sequentially in the circumferential direction, wherein a first central tooth having a first central tooth width MB is disposed at the center of the first coil group, wherein a first boundary tooth having a first boundary tooth width RB is disposed between the first and the second coil groups, wherein the first boundary tooth width RB is substantially RB=a*ZB and the first central tooth width MB is substantially MB=(2a)*ZB, wherein the factor a is greater than 0 and less than 1. The detent moments and/or oscillating moments occurring in a permanently excited rotating electric machine can thereby be reduced. | 11-29-2012 |
20120299434 | STATOR OF A PERMANENTLY EXCITED ROTATING ELECTRIC MACHINE - A stator of a permanently excited rotating electric machine has a plurality of segments abutting each other at radially and axially extending segment boundaries. Each segment has a plurality of radially projecting teeth of uniform width and grooves extending in the axial direction and alternatingly arranged in a peripheral direction of the stator. Abutting segments touch each other at the segment boundaries such that an outer tooth of one segment touches an outer tooth of an abutting segment, wherein a sum of the widths of the two teeth touching each other at the corresponding segment boundary is greater than the uniform width of at least a majority of the plurality of teeth of a segment that are not arranged directly at a segment boundary of that segment. Detent moments and/or oscillating moments occurring in a permanently excited rotating electric machine can thereby reduced. | 11-29-2012 |
20130154429 | ACTIVE PART OF AN ELECTRICAL MACHINE HAVING INCLINED COILS IN THE WINDING HEAD AREA - An active part of an electrical machine has a carrier, a plurality of coils which are arranged on the carrier and which each include a plurality of sub-conductors and a winding head area, in which the coils project out of the carrier in a curved shape, respectively and are connected to one another. At least one of the plurality of coils has a coil arc in the winding head area, and the center line of the coil runs in one plane in the coil arc. The sub-conductors of one coil run parallel to the plane in the coil arc of the coil and themselves in each case form sub-conductor arcs. The vertices of the sub-conductor arcs of the coil form a line of inclination which runs at an angle to the plane. | 06-20-2013 |
20130270954 | ROTOR FOR AN ELECTRICAL MACHINE - A rotor for an electrical machine has a rotor body and permanent magnets arranged on the circumference of the rotor body, wherein those areas of the circumference of the rotor body which are covered by the permanent magnets have at least one recess and/or that side of the permanent magnets which faces the circumference of the rotor body has at least one recess. Each recess is configured as a slot which extends in parallel relationship to a circumference-proximal side of the permanent magnets. Removably insertable in the recesses are ferromagnetic bars to allow removal of the permanent magnets. | 10-17-2013 |