Levitronix Gmbh

Sartorius Stedim Biotech Gmbh

Thoratec Switzerland Gmbh

Thomas Nussbaumer

Thomas Holenstein

Daniel Steinert

Marco Leupold

Simon Topp-Manske

Lars Böttcher

Marcel Stettler

Thomas Schneeberger

Robin Heese

Philipp Campos

Patrick Hinni

Jonas Ginė

A viscometer for inline determination of the viscosity of a fluid includes a drive device and a measuring device including a housing and a chamber. The drive device includes a housing in which a stator is arranged. The stator has and having a plurality of coil cores delimited by an end face, and carrying a concentrated winding, and being a bearing and drive stator with which the rotor is magnetically driven without contact and magnetically levitated without contact with respect to the stator. A control device actuates the stator and determines the viscosity based on an operating parameter of the electromagnetic rotary drive.

Viscometer and a method for determining a concentration of a component in a fluid using such a viscometer

A mixing device having a stirring element can include: a container for receiving fluids and/or solids; and at least one rotatable stirring element for mixing the fluids and/or solids; wherein the stirring element comprises a first bearing element and a second bearing element which are arranged at or near opposite ends of the stirring element; wherein the first bearing element is mounted on a first face of the container and the second bearing element is mounted on an opposite second face of the container; wherein the first bearing element comprises at least one non-permanently magnetized element such that it can be moved in rotation by externally induced reluctance forces, and wherein the second bearing element is mounted in a contactless manner by externally induced magnetic forces.

Mixing device having a stirring element

An electromagnetic rotary drive includes a rotor including a magnetically effective core surrounded by a stator. The stator has poles arranged around the magnetically effective core and each of the poles is delimited by an end face. The rotor is capable of being magnetically driven without contact in an operating state about an axial direction, and is capable of being magnetically levitated without contact with respect to the stator. The rotor is configured to be magnetically levitated in a radial plane and is passively magnetically stabilized in the axial direction against tilting. The magnetically effective core has a rotor height which is a maximum extension of the magnetically effective core in the axial direction, the rotor height being greater than a stator pole height defined by a maximum extension of the end faces in the axial direction.

Electromagnetic rotary drive, a centrifugal pump and a pump unit

Mixer impeller

An electromagnetic rotary drive includes a ring-shaped magnetically effective core arranged around a stator and has a magnetic central plane. The stator is a bearing and a drive stator, with which, the rotor is contactlessly magnetically drivable about an axis of rotation, and with which the rotor is contactlessly magnetically levitatable with respect to the stator. The rotor actively magnetically levitated in a radial plane perpendicular to an axial direction, and passively magnetically stabilized in the axial direction and against tilting. The rotor includes a magnetically effective bearing ring arranged radially externally disposed and spaced from the magnetically effective core, and a bearing stator having a magnetically effective stator ring interacts with the bearing ring. The bearing stator is configured such that the stator ring passively magnetically stabilizes the rotor against tilting, and the bearing ring is connected to the magnetically effective core of the rotor via a connecting element.

Electromagnetic rotary drive and a rotational device

A magnetic bearing apparatus is proposed having a stator () which includes a winding () for the generation of a magnetic control field, having a rotor () which can be magnetically journalled with respect to the stator () and also having a sensor device () configured as an eddy current sensor for the determination of the distance between the stator () and the rotor (), wherein the sensor device () includes at least one sensor element () configured as an inductor and at least one capacitor () which forms an electrical resonant circuit with the inductor, and also having a monitoring unit () for the control of the sensor device () and for the evaluation of the detected signals. The inductor is arranged electrically in series to the capacitor () so that the electrical resonant circuit is a serial resonant circuit.

Magnetic bearing apparatus

A bearing-free engine includes a bearing and drive stator having a magnetic stator plane and a magnetic rotor having a magnetic rotor plane and supported magnetically in contact free manner within the stator. The axial height of the rotor is smaller than or equal to a half diameter of the rotor. The rotor is stabilized passively by reluctance forces against axial displacement and tilting. A first sensor signal from a first measurement zone of the rotor is evaluated by a first sensor and a second sensor signal from a second measurement zone of the rotor is evaluated by a second sensor. To determine the tilting of the rotor, at least 50% of the first sensor signal from the first measurement zone is generated from a first control measurement zone which is a part of the first measurement zone disposed either below or above the magnetic rotor plane.

Rotational machine, method for the determination of a tilting of a rotor of a rotational machine, as well as a processing plant

An electric rotary drive is proposed, designed as a bearingless external rotor motor, having a magnetically supported, substantially ring-shaped rotor () which is arranged around an inwardly disposed stator (), wherein an air gap () is provided between the rotor () and the stator (), wherein the stator () is designed as a bearing and drive stator with which the rotation of the rotor () can be driven about an axis of rotation (A) and with which the rotor () can be magnetically supported, wherein the rotor () is radially supported in an actively magnetic manner in the plane perpendicular to the axis of rotation (A) and is supported axially in the direction of the axis of rotation (A) and against tilting in a passively magnetic manner. The stator () has, at least in its marginal region (), a magnetic height (H) which is smaller than the magnetic rotor height (H) of the rotor () in its radially inwardly disposed region ().

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Zurich, Switzerland

Thomas Nussbaumer