Papst-motoren Gmbh & Co Kg

Vibrant Med-el Hearing Technology Gmbh

Hanning Elektro-werke Gmbh & Co. Kg

Other

General Electric Company

Med-el Elektromedizinische Geraete Gmbh

Ebm-papst St. Georgen Gmbh & Co Kg

Engel Austria Gmbh

Levitronix Gmbh

Sulzer Electronics Ag

Rieter Cz S.r.o.

Johannes Kepler UniversitÄt Linz

Wolfgang Amrhein

Martin Zimmerling

Siegfried Silber

Peter Lampacher

Gunther Weidenholzer

Geoffrey R Ball

Fritz Schmider

Herbert Kopecek

Jiri Sloupensky

Ralf De La Haye

Rudolf Scheidl

Simone Pratesi

Franco Graziani

Michael Bernhard Schmitz

Herbert Grabner

Markus Nagl

Thomas Lechleitner

Werner Kappelmueller

Bernhard Jamnig

Paolo Battagli

Gerald Jungmayr

Francesco Grillo

Thomas Henke

Bart Jan Olmi

Andreas Levermann

Thomas Feichtner

Bernhard Karl Steiner

Andreas Prokesch

Hubert Mitterhofer

Wolfgang Gruber

A shaping machine includes a melting vessel, an induction coil arranged on the melting vessel for inductively heating, in particular melting, a material, and a shaping cavity. The melting vessel has at least one irradiation region which is substantially permeable for an electromagnetic field, and the shaping machine is adapted to cool the material in the cavity in such a way that a substantially crystalline solid body is formed. A body with a higher magnetic permeability than the melting vessel is arranged overlapping the irradiation region, and the induction coil is arranged between the body and the irradiation region.

Shaping machine

An arrangement is described for a hearing implant system. An implantable housing has an outer surface configured to lie under and parallel to the skin of the implanted patient. An implant magnet arrangement is located within the implantable housing and has multiple local magnetic sections with different independent local magnetic fields that are combined together to form a net magnetic field with at least two-fold symmetry and zero net magnetic dipole moment, wherein the magnetic fields are oriented parallel to the outer surface of the implant housing.

Symmetric magnet arrangement for medical implants

An implantable hearing prosthesis for a recipient patient is described. An implantable signal transducer includes one or more electromagnetic drive coils for receiving an electrical stimulation signal and a cylindrical transducer magnet arrangement including an inner disk magnet having a first magnetic field direction, and an outer annular magnet surrounding the inner rod magnet and having a second magnetic field direction opposite to the first magnetic field direction. Current flow through the one or more electromagnetic drive coils from the electrical stimulation signal creates a coil magnetic field that interacts with the magnetic fields of the transducer magnet arrangement to create vibration in the transducer magnet which is developed by the signal transducer as a mechanical stimulation signal for audio perception by the patient.

MRI safe actuator for implantable floating mass transducer

An implantable hearing prosthesis for a recipient patient is described. An implantable receiving coil transcutaneously receives an externally generated communication data signal. An implantable signal processor is in communication with the receiving coil and converts the communication data signal into an electrical stimulation signal. An implantable transducer housing is fixedly attachable to skull bone of the patient. An implantable drive transducer is in communication with the signal processor and removably engageable with the transducer housing for applying to the transducer housing a mechanical vibration signal based on the electrical stimulation signal for audio perception by the patient.

Skull vibrational unit

A permanent magnetic rotor for an electric motor, preferably for an internal rotor motor, includes a laminated core consisting of several rotor sheets that are stacked in the axial direction. Permanent magnets are arranged in receiving pockets formed by recesses of the rotor sheets, the laminated core being composed of at least two differently shaped types of rotor sheets. Several rotor sheets of a first type of rotor sheet are provided as retaining sheets that respectively include a central yoke lamination section that is connected or can be connected to the rotor shaft and respectively one or more external pole shoe sections that are connected to the yoke lamination section by one or more connecting bars or bar sections, and several rotor sheets of a second type of rotor sheet are provided as intermediate sheets without connecting bars.

Permanent-magnetic rotor

The invention relates to a body of revolution, in particular for a centrifugal, which comprises a rotator, an electric motor with a stator and a rotor wherein said latter is fixed to the rotator for rotational movement therewith, a support to which the stator of the electric motor is attached and a bearing unit for rotational arrangement of the rotor around an axis of rotation which comprises at least one bearing adapted to coact with an electromagnetic stabilizer unit in such a way that disturbing forces and/or disturbing vibrations of the rotator are counteracted and/or compensated.

Magnetically levitated and controlled body of revolution

A fan () has an electronically commutated drive motor (ECM) with a stator () connected to a bearing tube () and a rotor () on a shaft (). The shaft () is journaled in the tube () using passive radial magnetic bearings () to minimize friction and wear, is axially displaceable with respect to the tube (), and is drivingly connected to a rotor magnet () forming a first magnetic yoke (). A second magnetic yoke () is connected to the shaft (), and has an inner surface () defining a substantially cylindrical air gap () through which, during operation, a radial magnetic flux (') extends. A plunger coil () extends into the air gap () and is mechanically connected to the tube () so that, upon axial displacement of the plunger coil (), the position of the shaft () with respect to the tube () changes.

Fan with active magnetic bearing

A valve comprises an electromagnetic actuator including a solenoid. The solenoid includes at least one core and an anchor plate. The solenoid further comprises at least one coil disposed within the core and connected to a set of power electronics to supply current to the coils. The actuator further comprises a plunger connected to the anchor plate and at least one spring configured to guide the plunger. The actuator also includes a pressure compensation system. The opening and closing of the valve is controlled by passing current through the coil.

Electromagnetic actuators

The invention relates to an economical, non-wearing, electrical permanent magnet drive for actively controlling the rotor position in three degree of freedom. The stator windings produce superimposed fields with different pole numbers in the pole pitches by unsymmetrical magnetomotive force distributions.

Stator field providing torque and levitation

A magnetically journalled electrical drive comprises a magnetically journalled electrical machine with windings which are inserted in the stator or rotor for the production of the torque and the suspension force and an analog or digital electronic circuitry for control, regulation, monitoring and excitation of the magnetically journalled machine. The magnetically journalled machine is equipped in the stator or rotor with windings (,) which are utilised via a corresponding excitation through the electronic circuitry both for the production of the suspension force and for the production of the torque.

Magnetically journalled electrical drive

A method for the excitation of the radial force and torque winding systems of electrical drives with integrated magnetic bearings. The drives comprise an electrical machine with torque and radial force windings which are introduced in the stator or rotor, a position and angle sensor system and analog or digital electronic circuitry for the control, regulation, monitoring and feeding of the machine. A model is used for setting the rotor position (36,37) and the rotational angle of the rotor (&phgr;) which describes the relationship between the forces acting radially and tangentially at the rotor or at the stator respectively and the loop currents, and indeed in such a manner that it takes into account the deviations from the sinusoidal form of the force components, which depend on the rotational angle of the rotor (&phgr;).

Method and arrangement for the excitation of the journalling winding and the drive winding systems in electrical machines with magnetic journalling, and an electrical drive

A gas premix burner in which gas and air are mixed in a suction region of an impeller to form a combustion mixture. The impeller is associated with a blower housing and an electronic control circuit board, all of which are arranged upstream in a blower chamber having at least one flame separating wall. The arrangement prevents the gas and the combustion mixture from reaching the motor landings or the printed circuit board.

Blower for gas premix burners

A gas premix burner in which gas and air are mixed in a suction region of an impeller to form a combustion mixture. The impeller is associated with a blower housing and an electronic control circuit board, all of which are arranged upstream in a blower chamber having at least one time separating wall. The arrangement prevents the gas and the combustion mixture from reaching the motor landings or the primed circuit board.

Growing community of inventors

Ottensheim, Austria

Wolfgang Amrhein