Levitronix GmbH

Zurich, Switzerland

Levitronix GmbH

Zurich, Switzerland
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Patent
Levitronix GmbH | Date: 2011-01-13

A magnetic bearing apparatus is proposed having a stator (2) which includes a winding (22) for the generation of a magnetic control field, having a rotor (3) which can be magnetically journalled with respect to the stator (2) and also having a sensor device (5) configured as an eddy current sensor for the determination of the distance between the stator (2) and the rotor (3), wherein the sensor device (5) includes at least one sensor element (51) configured as an inductor and at least one capacitor (53) which forms an electrical resonant circuit with the inductor, and also having a monitoring unit (6) for the control of the sensor device (5) and for the evaluation of the detected signals. The inductor is arranged electrically in series to the capacitor (53) so that the electrical resonant circuit is a serial resonant circuit.


The invention relates to a rotational machine, designed as a bearing free motor, including a stator (2) designed as a bearing and drive stator having a stator winding (3) and a disc-shaped rotor (4) stored magnetically contact free within the stator (2). In this connection an axial height (H) of the rotor (4) is smaller than or equal to a half diameter (D) of the rotor (4) and with the rotor (4) being passively stabilized by reluctance forces with regard to the stator (2) both against a displacement along a rotational axis (A) of the rotor (4) and also against a tilting from an equilibrium position (G), and with the stator (2) including a permanent magnet (6) for the generation of a homopolar magnetic flux (H). In accordance with the invention the rotor (4) is a ring-like rotor (4) rotatably arranged about a pole piece (5) of the stator (2) and the rotor (4) includes a ferromagnetic material (FM) and no permanent magnet. The invention also relates to a ferromagnetic rotor (4) without permanent magnets, as well as to an apparatus having a rotational machine (1).


Patent
Levitronix GmbH | Date: 2011-03-10

The invention relates to a treatment apparatus (1) for treating a surface (21) of a body (2) with a first treatment medium (31) and a second treatment medium (32). In this respect, the treatment apparatus (1) includes a holding device (5) rotatable about an axis of rotation (4) for receiving and holding the body (2) and a rotary drive (6) rotationally fixedly coupled to the rotatable holding device (5) as well as a supply device (7) for supplying the first treatment medium (31) and the second treatment medium (32) to the surface (21) of the body (2) held in the holding device (5). The treatment apparatus includes a collection container (8) having a separation element (80) which separation element (80) divides the collection container (8) into a first chamber (81) and into a second chamber (82) such that the first treatment medium (31) can be collected in the first chamber (81) and the second treatment medium (32) can be collected separately in the second chamber (82). In accordance with the invention, the collection container (8) includes a base chamber part (800) not movable with respect to the holding device (5) and the separation element (80) is movably arranged between a first position (A) and a second position (B) such that the first treatment medium (31) can be led off into the first chamber (81) in the first position (A) and the second treatment medium (32) can be led off into the second chamber (82) in the second position (B).


Patent
Levitronix GmbH | Date: 2016-06-09

An electromagnetic rotary drive includes a magnetically contactlessly drivable rotor free of coils, and a stator configured as a bearing and drive stator configured to drive the rotor magnetically and contactlessly about an axis of rotation. The rotor is capable of being supported magnetically contactlessly with respect to the stator in an operating state. The stator includes an upper stator part having a plurality of pronounced upper poles configured to carry upper windings and a lower stator part having a plurality of pronounced lower poles configured to carry lower windings. The upper stator part and the lower stator part are arranged spaced apart from one another with respect to an axial direction. A permanent magnet is disposed between the upper stator part and the lower stator part.


Patent
Levitronix GmbH | Date: 2012-07-20

The invention relates to a magnetic rotor (1) for a rotary pump (2), wherein the rotor (1) can be driven and levitated in a magnetically contactless manner in a pump housing (4) within a stator (5) of the rotary pump (2) for conveying a fluid (3) and the rotor (1) is encapsulated by means of an outer encapsulation (6) including a fluorinated hydrocarbon. In accordance with the invention, the rotor (1) includes a permanent magnet (8) sheathed by a metal jacket (7) within the encapsulation (6), with the metal jacket (7) including at least one metal from the group of elements composed of tantalum, niobium, zirconium, titanium, hafnium, gold, platinum, palladium, osmium, iridium, ruthenium and rhodium. The invention further relates to plant components, in particular to a rotary pump (2) having a magnetic rotor (1).


Patent
Levitronix GmbH | Date: 2016-06-09

A mixing apparatus for mixing substances includes a single-use apparatus and a reusable apparatus. The single-use apparatus includes a flexible mixing tank configured to receive the at least two substances to be mixed, is plastic, and has a rotor arranged in the mixing tank. The rotor includes an impeller configured to mix the at least two substances, the impeller being magnetically contactlessly drivable and free of coils and permanent magnets. The reusable apparatus includes a support tank configured to receive the mixing tank and a stator configured to magnetically contactlessly drive the rotor about an axis of rotation in an operating state. The stator includes at least one permanent magnet configured to generate a permanent magnet flux and at least one winding configured to generate an electromagnetic flux, the permanent magnet flux and the electromagnetic flux together being capable of driving the rotor.


Patent
Levitronix GmbH | Date: 2010-07-08

An electric rotary drive is proposed, designed as a bearingless external rotor motor, having a magnetically supported, substantially ring-shaped rotor (3) which is arranged around an inwardly disposed stator (2), wherein an air gap (4) is provided between the rotor (3) and the stator (2), wherein the stator (2) is designed as a bearing and drive stator with which the rotation of the rotor (3) can be driven about an axis of rotation (A) and with which the rotor (3) can be magnetically supported, wherein the rotor (3) 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 (2) has, at least in its marginal region (26), a magnetic height (H1) which is smaller than the magnetic rotor height (H2) of the rotor (3) in its radially inwardly disposed region (36).


Patent
Levitronix GmbH | Date: 2011-11-23

A flowmeter having an inlet through which the medium can flow into a measurement zone and having an outlet through which the medium can flow out, wherein a damping device is provided in front of the inlet, and has a first mass which can be flowed through having a first inlet and a first outlet for the medium, a second mass which can be flowed through having a second inlet and a second outlet for the medium as well as a flow connection which is capable of vibration and which connects the first outlet to the second inlet, wherein a minimal flow cross-section (d) of the flow connection is smaller than the inlet cross-section (E) at the first inlet or smaller than the outlet cross-section (A) at the second outlet.


A flow regulator includes a first sensor determining a first actual value of a first flow parameter of the fluid, a pre-pressure regulator setting a predefinable pre-pressure at a pre-pressure outlet of the pre-pressure regulator, and a regulating pump. The fluid is capable of being supplied to the pre-pressure regulator at a plant pressure in an operating state via an inflow line and a pre-pressure inlet and capable of being conducted further to the regulating pump at the pre-pressure via a flow connection disposed between the pre-pressure outlet and the regulating pump, the pre-pressure outlet being connected to a high pressure connection of the regulating pump in a flow communicating manner via the flow connection such that the fluid is capable of being supplied from the pre-pressure regulator of the regulating pump and guided away from the regulating pump via a low pressure connection into an outflow line.


Patent
Levitronix GmbH | Date: 2010-09-01

Disclosed is a rotary pump including a magnetic rotor arranged in a pump housing and having a magnetic rotor plane, which rotor is operatively connected to a drive for conveying a fluid. The drive is a bearingless motor having a stator configured as a bearing stator and drive stator and having a magnetic stator plane, wherein the stator bears a drive coil and a bearing coil lying in the stator plane and/or a drive bearing coil. The rotor is magnetically contactlessly journalled within the stator, wherein an axial height (H) of the rotor is smaller than or equal to half a diameter (D) of the rotor so that the rotor is passively magnetically stabilized by reluctance forces with respect to the magnetic stator plane both against axial displacement and against a tilt from an equilibrium position.

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