公开(公告)号：US12104602B2

公开(公告)日：2024-10-01

申请号：US17579733

申请日：2022-01-20

Applicant: Levitronix GmbH

Inventor： Daniel Steinert ,  Thomas Holenstein ,  Ivana Bagaric

IPC: F04D17/04 ,  F04D25/06 ,  F04D29/048

CPC classification number: F04D17/04 ,  F04D25/0633 ,  F04D25/0646 ,  F04D29/048

Abstract: A cross-flow fan includes a cylindrical impeller having an annularly designed first magnetically effective core disposed at a first end, an annularly designed second magnetically effective core disposed at a second end, a plurality of vanes arranged between the first magnetically effective core and the second magnetically effective core, a first stator, which is a bearing and drive stator, and which interacts with the first magnetically effective core as a first electromagnetic rotary drive, and a second stator, which is at least a bearing stator, and with which the second magnetically effective core is capable of being magnetically levitated without contact with respect to the second stator. The impeller is magnetically driven without contact by the first and the second stators and magnetically levitated without contact with respect to the first stator and the second stator.

公开(公告)号：US12062956B2

公开(公告)日：2024-08-13

申请号：US17710420

申请日：2022-03-31

Applicant: Levitronix GmbH

Inventor： Daniel Steinert ,  Thomas Schneeberger ,  Thomas Nussbaumer ,  Marcel Stettler ,  Jonas Ginė

IPC: H02K21/02 ,  F04D1/00 ,  F04D13/06 ,  F04D29/048 ,  H02K7/09

CPC classification number: H02K21/024 ,  F04D1/00 ,  F04D13/06 ,  F04D29/048 ,  H02K7/09

Abstract: 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.

公开(公告)号：US12241820B2

公开(公告)日：2025-03-04

申请号：US17855404

申请日：2022-06-30

Applicant: Levitronix GmbH

Inventor： Daniel Steinert ,  Thomas Nussbaumer

IPC: G01N11/14 ,  G01N33/487 ,  H02K1/14 ,  H02K3/18

Abstract: 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.