| Patent application number | Description | Published |
|---|
| 20080197741 | Electrical Machine Comprising a Winding System With Coil Groups - Disclosed is an electric machine ( | 08-21-2008 |
| 20080197742 | Electrical Machine Having a Three-Phase Winding System - The electrical machine has a stator, which comprises thirty-six slots and thirty-six teeth with an alternating sequence and a winding system ( | 08-21-2008 |
| 20080289440 | Linear/Rotary Drive Assembly - The invention relates to a linear/rotary drive assembly ( | 11-27-2008 |
| 20080315704 | Synchronous Machine - The invention relates to a permanently excited synchronous machine ( | 12-25-2008 |
| 20090009114 | SYNCHRONOUS MACHINE - The invention relates to a synchronous machine provided with a stator and rotor, wherein the stator comprises stator teeth ( | 01-08-2009 |
| 20090015080 | Synchronous Machine Using the Fourth Harmonic - The invention relates to a permanently excited synchronous machine and a method for the suppression of harmonics. The permanently excited synchronous machine ( | 01-15-2009 |
| 20090039713 | Rotary Linear Drive Having A Transmitter Device - The aim of the invention is to provide a linear/rotation drive with an improved transmitter device for detecting the linear and rotational movements. For this purpose, the transmitter device ( | 02-12-2009 |
| 20090072634 | ELECTRICAL MACHINE - The invention relates to an electrical machine ( | 03-19-2009 |
| 20090152959 | SECONDARY PART OF A LINEAR DRIVE - A secondary part of a linear drive, in particular of a cylindrical or planar linear drive, has permanent magnets arranged on a soft-magnetic mount in perpendicular relationship to the movement direction of the linear drive. The permanent magnets are curved at least on the surface facing the primary part. The permanent magnets cover each only a predeterminable part of a magnetic pole and have a radial magnetization direction in relation to their outer surface. | 06-18-2009 |
| 20090152976 | DYNAMO-ELECTRICAL MACHINE WITH TOOTH-WOUND COILS - A dynamo-electrical machine includes a stator with teeth which are aligned with respect to a rotor, wherein at least a predeterminable number of teeth are surrounded by a winding system which is arranged in slots. The slots which are formed by the teeth and designed to be open, are each closed by a slot sealing element which has an electrically non-conductive and magnetically non-permeable material in which a tooth head widening element is provided in the area of those tooth sections of the tooth heads which face the air gap. | 06-18-2009 |
| 20090160283 | Rotary/linear Drive with a Rotary Drive which is Free of Axial Forces - The aim of the invention is to provide a linear rotation drive wherein the oscillating torques are reduced to a minimum and whose rotation drive is devoid of axial forces. For this purpose, a magnet of the linear rotation drive is provided with sloped sections or a plurality of magnet sections is configured to give at least two sloped magnet arrangements which are symmetric to a line extending in the circumferential direction of the linear rotation drive. Oscillating torques can also be avoided by distributing the magnets across the circumference of the rotor or stator in an uneven manner. Favorable results can be obtained when the least common multiple of the number of grooves and the number of poles is as high as possible. | 06-25-2009 |
| 20090184602 | Permanent-Magnet Synchronous Machine with Suppression Means for Improving the Torque Ripple - The invention relates to a permanently excited synchronous machine ( | 07-23-2009 |
| 20090206686 | RING COIL MOTOR - The invention relates to a ring coil motor ( | 08-20-2009 |
| 20090212644 | COMBINATION DRIVE WITH A HYBRID RELUCTANCE MOTOR - The aim of the invention is to create a combined linear-rotary drive that has a compact, simple, and inexpensive design. Said aim is achieved by a combined drive comprising a linear driving device ( | 08-27-2009 |
| 20090218904 | ELECTRIC MACHINE WITH CONCENTRATED WINDINGS - The electrical machine ( | 09-03-2009 |
| 20090251013 | Electric Motor for Rotation and Axial Movement - The invention relates to a combination drive with a short axial length and a high magnetic capacity. According to the invention, an electric motor comprises a rotational drive device with an outer rotor (AR), and a linear drive device with an outer rotor (AT) or an inner rotor with bearings in the active part. The outer rotor (AR,AT) can be mounted by means of hydrostatic bearings (L | 10-08-2009 |
| 20090295236 | Electric Machine Having A Rotary And A Linear Actuator - The invention relates to an electric machine which comprises a first machine part ( | 12-03-2009 |
| 20090295251 | Multipole Permanent-Magnet Synchronous Machine Having Tooth-Wound Coils - The permanently excited synchronous machine ( | 12-03-2009 |
| 20090302832 | MEASURING SYSTEM FOR DETECTING A ROTARY-LINEAR DISPLACEMENT AND CORRESPONDING ROTARY-LINEAR DRIVE - The invention relates to more accurate rotative and linear positional measurement for a rotary-linear drive. A measuring system comprising a linear sensor ( | 12-10-2009 |
| 20090315424 | PERMANENT MAGNET SYNCHRONOUS MACHINE WITH SHELL MAGNETS - A permanent-magnet synchronous machine includes a stator that has slots and a rotor that has permanent magnets which form magnet poles. The permanent magnets are shell magnets having two curved surfaces. Each shell magnet covers a predetermined part of a magnet pole. The external radius of the shell magnets is less than 0.6 times the radius of the stator bore. Each shell magnet has a quasi-radial magnetic preferred direction that is directed substantially perpendicular to its outer surface. | 12-24-2009 |
| 20090322174 | PERMANENT-MAGNET SYNCHRONOUS MACHINE WITH REDUCED TORQUE RIPPLE - In a three-phase permanent-magnet synchronous machine, a pole gap and a skew of permanent magnets on the rotor are designed such that oscillating torques which are caused by the fifth and seventh harmonics of the stator field and of the rotor field are mutually reduced. In particular, the skew can be chosen as a function of the pole gap, such that the majority of the respective oscillating torques is neutralized. This results in minimal torque ripple. | 12-31-2009 |
| 20100000830 | BRAKE FOR A LINEARLY AND ROTATORILY DISPLACEABLE SHAFT - During combined rotatory-linear displacements of a shaft ( | 01-07-2010 |
| 20100013332 | MAGNETIC RADIAL BEARING AND MAGNETIC BEARING SYSTEM HAVING A THREE-PHASE CONTROLLER - A magnetic radial bearing and a bearing system for supporting a rotating shaft are disclosed. The bearing has a number of electromagnets circumferentially arranged around a rotating shaft. Each of the electromagnets has a coil which is electrically connected so as to generate both a magnetic bias and a rotating three-phase field. First terminals of opposing coils are connected in common to a corresponding phase of a three-phase controller for generating the rotating field, whereas second terminals of the coils not connected to the same phase are connected at corresponding star points. The star points are connected to DC power for generating the magnetic bias. | 01-21-2010 |
| 20100013333 | MAGNETIC RADIAL BEARING HAVING PERMANENT-MAGNET GENERATED MAGNETIC BIAS, AND A MAGNETIC BEARING SYSTEM HAVING A MAGNETIC RADIAL BEARING OF THIS TYPE - A magnetic radial bearing and a magnetic bearing system for non-contact support of a rotor shaft are disclosed. The magnetic radial bearing for non-contact support of a rotor shaft includes a rotating-field machine stator with a plurality of stator slots distributed in a circumferential direction, and stator teeth with radial ends arranged between adjacent stator slots. The number of stator teeth is equal to the number of stator slots. A three-phase stator winding is wound around the stator slots for producing a rotating magnetic field. An axially extending permanent magnet in form of a strip or plate is arranged at the radial end of each stator tooth, wherein permanent magnets that are adjacently arranged in the circumferential direction have alternating opposing radial magnetization directions. | 01-21-2010 |
| 20100013341 | ELECTRIC MACHINE WITH STEPPED WINDING STRUCTURE - An electric machine for direct drive or braking applications with coils providing improved power efficiency and heat transfer is disclosed. The electric machine has a coil body and a winding with a plurality of turns wound on the coil body. Each of the various turns is located in a separate plane. Respective end sections of two different turns are connected by a connecting element, with a major directional component of the connecting element being oriented in an axial direction perpendicular to the plane of one of the two turns. Axially adjacent turns can thereby be connected to one another together. This arrangement reduces or eliminates empty spaces in the slots, particularly when the turns are made from flat wire. | 01-21-2010 |
| 20100052466 | ELECTRICAL MACHINE WITH SKEW-RUNNING MAGNET POLE BOUNDARIES - According to the invention, the torque ripple of electrical machines is supposed to be further reduced. For this purpose, it is provided to dispose the magnetic poles, for example, on the surface of a rotor in a plurality of sections (A | 03-04-2010 |
| 20100133940 | THREE-PHASE DYNAMOELECTRICAL PERMANENTLY EXCITED SYNCHRONOUS MACHINE - A three-phase dynamoelectrical permanently excited synchronous machine includes a stator with teeth which point to a rotor, wherein twelve slots are formed between the teeth. The slots have coil sides of coils of a winding system in such a manner that two coil sides of different coils are situated in each slot. The rotor has a cylindrical support structure which is provided with permanent magnets defined by an inner radius which corresponds to a radius of the support structure, and by an outer radius which is smaller than their inner radius. The permanent magnets are formed with ten magnet poles when viewed in a circumferential direction. | 06-03-2010 |
| 20100264770 | PERMANENT-MAGNET SYNCHRONOUS MACHINE WITH SUPPRESSION MEANS FOR IMPROVING THE TORQUE RIPPLE - A permanent-magnet synchronous machine for suppressing harmonics includes a stator and a rotor with permanent magnets. Each permanent magnet represents a magnetic pole and is, when viewed in the circumferential direction of the rotor, shaped as a parallelogram or an arrow. The pole coverage is less than one. The permanent magnets are staggered at a staggering angle, wherein the permanent magnets of one pole are arranged in the axial direction with an increasing offset of a circumferential angle in relation to a first permanent magnet of this pole. Each permanent magnet is skewed at a skew angle defined by a circumferential angle of a projection of a tip portion of the parallelogram or arrow. The optimal skew and staggering angles are calculated from the design parameters for the stator and the number of pole pairs and the number of poles in the axial direction of the rotor. | 10-21-2010 |
| 20110006617 | LINEAR DRIVE MODULE FOR A ROTARY/LINEAR DRIVE - The aim of the invention is to provide a cost-effective, easily regulated rotary-linear drive. Therefore, the invention provides for the rotary-linear drive to connect a rotary drive ( | 01-13-2011 |
