An active magnetic bearing apparatus for supporting a rotor of a rotary machine comprises an axial magnetic bearing unit and a radial magnetic bearing unit mounted directly to one another. One of the axial magnetic bearing unit and the radial magnetic bearing unit is mounted to a support for attachment to a housing of the rotary machine.

A sensor arrangement for detecting in a contactless manner a movement of a body that is movably mounted within a housing includes the housing, a transducer configured to be non-rotatably connected to the body and move simultaneously with the body, and a measuring apparatus that is fixedly arranged and comprises a measuring element. When the body is movably mounted in the housing, the transducer is configured, in dependence upon the movement of the body, to influence at least one physical variable that is detected by the measuring element, the measuring apparatus is connected to the first housing by way of a connecting adapter that includes, on a side that is facing the first housing, a circumferential receiving contour into which a silicone bead is introduced and pressed in between the receiving contour and the housing, and the silicone bead (fixes and seals the connecting adapter on the housing.

An electromagnet unit in which influence of a noise on a displacement sensor is suppressed and which can be installed in a space-saving manner and a vacuum pump including the electromagnet unit are provided. An electromagnet unit includes a radial electromagnet which controls a shaft to a predetermined position, a radial sensor which detects a position of the shaft, and a printed board interposed between the radial electromagnet and the radial sensor and on which a wiring pattern for sensor connecting coils of the corresponding two radial sensors to each other and a wiring pattern connecting coils of the corresponding two radial electromagnets to each other are provided. The wiring pattern for sensor and the wiring pattern for electromagnet are disposed so as not to overlap when seen from the axial direction.

A sealing arrangement includes: a first machine element and a second machine element, each made of an electrically-conductive material; and a seal. The first and second machine elements are sealed against one another by the seal. At least one of the machine elements is made of an electrically-conductive plastic which is at least partially covered by an electrically-insulating, injection-molded skin as a result of production. The seal has an electrically-conductive support body. The support body has at least one substantially mandrel-shaped projection comprising an electrically-conductive material which is arranged on a side of the support body facing the injection-molded skin and completely penetrates the injection-molded skin.

A stator module for electromagnetically driving a rotor of a planar drive system comprises a connection module to provide drive energy. A power module has a current-generating unit to generate a drive current, which drives the rotor, from the drive energy. A stator unit has a coil conductor, to which the drive current can be applied, for generating a magnetic field which drives the rotor. A sensor module comprises a position-detecting unit to detect a position of the rotor over the sensor unit. The sensor module is arranged in a module housing. The stator unit and power module are arranged on a top side of the module housing and the connection module is arranged on a bottom side. The current-generating unit and the connection module are connected via a drive energy line. The drive energy line passes through the module housing in a manner electrically insulated from the sensor module.

A stator module for electromagnetically driving a rotor of a planar drive system comprises a connection module to provide drive energy. A power module has a current-generating unit to generate a drive current, which drives the rotor, from the drive energy. A stator unit has a coil conductor, to which the drive current can be applied, for generating a magnetic field which drives the rotor. A sensor module comprises a position-detecting unit to detect a position of the rotor over the sensor unit. The sensor module is arranged in a module housing. The stator unit and power module are arranged on a top side of the module housing and the connection module is arranged on a bottom side. The current-generating unit and the connection module are connected via a drive energy line. The drive energy line passes through the module housing in a manner electrically insulated from the sensor module.

A magnetic motor apparatus includes a motor housing, rotor element, rotatable urging elements and locking mechanism. The rotor element has an inner and outer rotor element, both including a plurality of permanent arc magnets arranged concentrically. The inner and outer rotor element are rotatable around an axis of rotation. The rotor element includes a plurality of shielding elements arranged in a third circle concentrically around the outer rotor element. An output shaft, rotatable with the rotor element, extends along the central axis of rotation and partly out the housing. The urging elements are arranged in a fourth circle concentrically around the rotor element. Each rotatable urging element includes a permanent magnet having poles, and is rotatable around a peripheral axis, such that each pole of the rotatable urging element in-use alternatingly faces the rotor element to impart an urging force. The locking mechanism controls rotation of the urging elements.

An armature is presented. The armature includes an armature winding having a plurality of coils, wherein each coil of the plurality of coils is spaced apart from adjacent coils and comprise includes a first side portion and a second side portion. The armature further includes a first electrically insulating winding enclosure. Furthermore, the armature includes a second electrically insulating winding enclosure disposed at a radial distance from the first electrically insulating winding enclosure, wherein the armature winding is disposed between the first electrically insulating winding enclosure and the second electrically insulating winding enclosure. Moreover, the armature includes an electrically insulating coil side separator disposed between the first side portion and the second side portion of the plurality of coils of the armature winding. A superconducting generator including the armature and a wind turbine having such superconducting generator are also presented.

A motor may include a shield member that screens a magnetic field between a stator and a rotor, and a moving member that controls a position of the shield member in response to an electromagnetic interaction with the stator such that the screening of the magnetic field is configured to be selectively performed. The motor may prevent a generation of a counter electromotive force or regenerative braking.

A filter circuit includes a coil component, an inductor, and a capacitor. In the coil component, a first coil and a second coil are magnetically coupled. The inductor is electrically connected to a first end of the first coil and a second end of the second coil and is connected in parallel to the coil component. The capacitor is electrically connected between a ground electrode and an electrode electrically connected to a second end of the first coil and a second end of the coil.