A magnetic levitation includes a stator with coil cores, a concentrated winding provided at each longitudinal leg of the coil cores surrounding a respective longitudinal leg, the stator including a cup-shaped recess into which a rotor is configured to be inserted, magnetic field sensors to determine the position of the rotor arranged around the cup-shaped recess, and a ring-shaped holding device for the magnetic field sensors, the ring-shaped holding device having a cavity for each magnetic field sensor, the cavity delimited with respect to the radial direction by an inside wall and by an outside wall. The magnetic field sensors to be pushed into the cavity, and the cavity dimensioned such that the inside wall and the outside wall rest flat against the magnetic field sensors.
A magnetic levitation device includes a housing, a stator and a controller. The stator includes coil cores having longitudinal and transverse legs and a winding at each longitudinal leg. The stator has a recess for the rotor. The controller includes a circuit board with front and back sides, with circuit breakers arranged on the front side. The housing includes an outer wall, a stator housing, a control housing, and a separating wall separating the stator housing from the control housing. A web is arranged on the separating wall adjacent to the outer wall, projecting into the control housing. The back side of the circuit board is supported on the web. The circuit breakers are arranged in an area with which the back side of the circuit board is supported on the web. The thermal connecting elements for dissipating heat are between the plurality of circuit breakers and the web.
A magnetic levitation device includes a magnetically effective core and a stator including coil cores. Each coli core includes a longitudinal leg and a transverse leg at an end of the longitudinal leg. A concentrated winding surrounds each longitudinal leg. The stator has a cup-shaped recess to receive the rotor. The transverse legs are arranged around the cup-shaped recess. First and second holding device and a second holding device are connected to each other, The first holding device includes a bottom plate on which holding elements are provided, which extend in the axial direction and receive exactly one of the longitudinal legs. The second holding device receives the transverse legs.
A pump unit includes a pump housing and a rotor in the pump housing. The pump unit contactless magnetic levitating and driving the rotor. The pump housing has a bottom part and a cover, the bottom part having a cylindrical cup to receive the rotor and a substantially ring-shaped first sealing surface for a sealing interaction with the cover. The cover has a substantially ring-shaped second sealing surface for a sealing interaction with the first sealing surface. One of the first and second sealing surfaces is a ribbed surface with a radial sealing rib, which extends in the circumferential direction along the entire sealing surface, while the other of the first and second sealing surfaces is a smooth surface.
A method includes providing an ultrasonic measuring device to determine a transit time difference between two measurement signals passing through the fluid in the pipe, emitting and receiving first and second measurement signals, transmitting the measurement signals to a storage and evaluation unit, determining an individual value for the transit time difference between the first and second measurement signals, determining a plurality of individual values for the transit time difference, determining a mean value for the transit time difference, determining a scattering parameter, which is characteristic for the scattering of the individual values around the mean value, providing a correlation between the mean value for the transit time difference and the change in the scattering parameter in dependence on the fraction of the disperse gas phase, and determination of the fraction of the disperse gas phase from the scattering parameter and the aforementioned correlation.
G01F 1/667 - Arrangements of transducers for ultrasonic flowmetersCircuits for operating ultrasonic flowmeters
G01F 1/66 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
G01F 15/18 - Supports or connecting means for meters
6.
ELECTROMAGNETIC ROTARY DRIVE AND A CENTRIFUGAL PUMP
An electromagnetic rotary drive includes a motor and a control. The motor includes a stator, with which a rotor can be magnetically driven without contact and magnetically levitated without contact with respect to the stator. The rotor is magnetically levitated in a radial plane perpendicular to the axial direction, and the stator has a plurality of coil cores, each of which has a longitudinal leg which extends from a first end in the axial direction to a second end, and a transverse leg which is arranged at the second end of the longitudinal leg and in the radial plane A winding surrounds the longitudinal leg, and the control has electrical energy to control and supply the windings. A thermal separating element is arranged between the motor unit and the control unit, and reduces a direct heat flow from the motor unit into the control unit.
H02K 3/32 - Windings characterised by the shape, form or construction of the insulation
H02K 9/22 - Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
A fan having a rotor for generating a fluid flow includes a stator and a rotor, which form an electromagnetic rotary drive for rotating the rotor about an axial direction. The rotary drive is an external rotor, and the rotor includes a magnetically effective core configured in an annular manner. The impeller includes a hub on which a plurality of blades configured to generate the fluid flow is arranged, and the stator is a bearing and drive stator configured to magnetically drive the rotor without contact and magnetically levitate the rotor without contact with respect to the stator. The rotor is capable of being actively magnetically levitated in a radial plane perpendicular to the axial direction, the hub of the impeller completely enclosing the magnetically effective core of the rotor, and the stator is encapsulated in a stator housing and formed of a low-permeable material.
An electromagnetic rotary drive includes a rotor having a magnetically effective core, and a stator, with which the rotor can be magnetically driven without contact and magnetically levitated without contact with respect to the stator. The rotor is actively magnetically levitated in a radial plane perpendicular to the axial direction. The stator has coil cores including a leg extending from a first end to a second end, and a transverse leg at the second end and extending from the longitudinal leg in a radial direction. The coil cores are arranged around the magnetically effective core with respect to a circumferential direction, and a concentrated winding surrounds each longitudinal leg. A cooling device includes a cooling conduit for cooling fluid. The cooling conduit has a section arranged in the circumferential direction in an interspace between the longitudinal leg of two coil cores.
A mixing device for mixing at least two substances includes a single-use device and a reusable device. The single-use device includes an impeller, vanes, and a cup for receiving the rotor housing. A magnetically effective core is in the rotor housing. The reusable device includes a stator to contactlessly magnetically drive the impeller about the axis of rotation and magnetically levitate the impeller with respect to the stator. A plurality of stabilizing elements is on the impeller for stabilizing the impeller against tilting. Each stabilizing element is arranged between two vanes and extends from a radial inner edge to a radial outer edge with respect to the radial direction, and each radial outer edge has a distance from the axis of rotation which is smaller than half the outer diameter of the impeller.
B01F 27/808 - Mixers with rotary stirring devices in fixed receptaclesKneaders with stirrers rotating about a substantially vertical axis with stirrers driven from the bottom of the receptacle
B01F 27/90 - Mixers with rotary stirring devices in fixed receptaclesKneaders with stirrers rotating about a substantially vertical axis with paddles or arms
B01F 33/453 - Magnetic mixersMixers with magnetically driven stirrers using supported or suspended stirring elements
B01F 35/511 - Mixing receptacles provided with liners, e.g. wear resistant or flexible liners
B01F 35/513 - Flexible receptacles, e.g. bags supported by rigid containers
B01F 101/22 - Mixing of ingredients for pharmaceutical or medical compositions
B01F 101/44 - Mixing of ingredients for microbiology, enzymology, in vitro culture or genetic manipulation
C12M 1/00 - Apparatus for enzymology or microbiology
C12M 1/06 - Apparatus for enzymology or microbiology with gas introduction means with agitator, e.g. impeller
An electromagnetic rotary drive includes a single-use device for single use and a reusable device for multiple use. The single-use device includes a rotor housing with a rotor, a connecting tube for a fluid, and a single-use component. The rotor housing has an inlet and an outlet, and the rotor is provided in the rotor housing for rotation about a desired axis of rotation defining an axial direction. The rotor can be magnetically driven without contact, and the connecting tube connects the inlet or the outlet of the rotor housing to the single-use component such that in the operating state the fluid flows through the connecting tube. The reusable device includes a stator, by which the rotor is magnetically driven without contact for rotation about the desired axis of rotation in the operating state.
H02K 21/16 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having annular armature cores with salient poles
11.
MIXING SYSTEM AND A METHOD FOR MIXING A PRIMARY FLUID WITH A FLOWABLE SECONDARY SUBSTANCE
A mixing system includes an eductor, a supply connection connected to a reservoir for a primary fluid, a discharge connection, a storage container for a secondary substance, a centrifugal pump to convey the primary fluid through the supply connection, and a controller to control the centrifugal pump. The eductor includes a primary inlet for the primary fluid, a secondary inlet for the secondary substance, an outlet for a mixed fluid, and a suction chamber to suck the secondary substance, the primary inlet connected to the supply connection so that the primary fluid can flow from the reservoir into the eductor and the outlet connected to the discharge connection so that the mixed fluid can be discharged from the eductor. The secondary inlet is at the suction chamber and connected to the storage container. A closing device is between the suction chamber and the storage container.
B01F 25/51 - Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle in which the mixture is circulated through a set of tubes, e.g. with gradual introduction of a component into the circulating flow
An eductor for mixing a primary fluid with a flowable secondary substance includes a primary inlet for the primary fluid, a secondary inlet for the secondary substance, an outlet and a suction chamber, A converging inlet nozzle is provided, which is arranged between the primary inlet and the suction chamber so that the primary fluid can flow from the primary inlet into the suction chamber. An outlet nozzle is provided between the suction chamber and the outlet, through which the primary fluid and the secondary substance can flow to the outlet, and the secondary inlet is provided at the suction chamber so that the secondary substance can flow from the secondary inlet into the suction chamber.
A rotary filter system includes a drive device and a rotary filter device including a filter housing and a filter unit, the filter housing having an inlet and first and second outlets. The filter unit is in the filter housing and completely enclosed by the filter housing. The filter unit has a filter element delimiting a fluid space from a filtrate space, filtrate is discharged from the filtrate space through the first outlet. The filter unit includes a magnetically effective core in a disk-shaped or ring-shaped manner. The drive device has a drive housing in which a stator is disposed to drive the rotation of the filter unit. The stator is a bearing and drive stator which interacts with the magnetically effective core as an electromagnetic rotary drive, so that the filter unit is capable of being magnetically driven without contact and magnetically levitated with respect to the stator.
B01D 63/16 - Rotary, reciprocated or vibrated modules
16.
DEVICE FOR ARRANGING ON A FLUID-CONDUCTING LINE AND FOR ATTACHING A FLOWMETER, AND METHOD FOR DETECTING A MEASUREMENT VARIABLE OF THE FLUID BEING CONDUCTED BY A LINE
The invention relates to a device (10) for arranging on a fluid-conducting line and for attaching a flowmeter, in particular an ultrasonic flowmeter, for detecting a measurement variable of the fluid being conducted by the line, having: - a first and a second connection (12, 14), by means of which the device (10) can be connected to the fluid-conducting line, - a measurement region (16) which is arranged between the first connection (12) and the second connection (14) and which can be coupled to the flowmeter in order to detect the measurement variable, wherein the first connection (12), the measurement region (16), and the second connection (14) define a flow path (A) for the fluid through the device (10), and - a flow-influencing element (22) which is arranged in and/or on the flow path (A) and which is arranged in front of the measurement region (16) in a provided flow direction of the fluid along the flow path (A) and at a distance therefrom. The flow-influencing element (22) is integrally formed with the first connection (12) or the second connection (14), and the flow-influencing element (22) is designed such that the flow flowing into the device (10) via the first connection (12), said fluid flowing into the device (10) with a substantially laminar flow, has a substantially turbulent flow in the measurement region (16).
G01F 1/66 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
G01F 1/667 - Arrangements of transducers for ultrasonic flowmetersCircuits for operating ultrasonic flowmeters
G01F 15/00 - Details of, or accessories for, apparatus of groups insofar as such details or appliances are not adapted to particular types of such apparatus
G01F 15/18 - Supports or connecting means for meters
A device for tangential flow filtration of a fluid includes a filter unit having has a first fluid opening and a second fluid opening for the fluid, a filter element and a permeate opening to discharge a permeate filtered out of the fluid, a first flow connection to connect the first fluid opening to a reservoir for the fluid, a second flow connection to connect the second fluid opening to the reservoir for the fluid, a first pump in the first flow connection, and configured to convey the fluid from the reservoir to the filter unit :a third flow connection configured to enable a fluid communication between the first flow connection and the second flow connection, the third flow connection bypassing the filter unit, and a second pump configured to circulate the fluid through the third flow connection and the filter unit.
The invention proposes a method for determining the proportion of a disperse gas phase in a fluid flowing in a line in a direction of flow with the aid of ultrasound, comprising the following steps of: a) providing an ultrasonic measuring device (1) which is configured to determine a propagation time difference between two measurement signals which pass through the fluid in the line (100), b) emitting and receiving a first measurement signal (12) with the aid of the ultrasonic measuring device (1), wherein the first measurement signal (12) is emitted with the direction of flow (A), c) emitting and receiving a second measurement signal (21) with the aid of the ultrasonic measuring device (1), wherein the second measurement signal (21) is emitted counter to the direction of flow (A), d) transmitting the measurement signals (12, 21) to a storage and evaluation unit (20), e) determining an individual value (E) for the propagation time difference between the first measurement signal (12) and the second measurement signal (21), f) determining a plurality of individual values for the propagation time difference by repeating steps b) to e), g) determining a mean value (MW) for the propagation time difference from the individual values (E) for the propagation time difference, h) determining a dispersion parameter (SP) which is characteristic of the dispersion of the individual values (E) around the mean value (MW), i) providing a relationship between the mean value (MW) for the propagation time difference and the change in the dispersion parameter (SP) on the basis of the proportion of the disperse gas phase (DP), j) determining the proportion of the disperse gas phase (DP) from the dispersion parameter (SP) and said relationship, wherein the individual values (E) for the propagation time difference or a mean value of a plurality of individual values (E) is/are optionally transformed into individual values (E) for the flow rate of the fluid or into a mean value for the flow rate, and steps h) and i) are carried out with the individual values (E) for the flow rate or the mean value for the flow rate.
G01F 1/74 - Devices for measuring flow of a fluid or flow of a fluent solid material in suspension in another fluid
G01F 1/66 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
G01F 1/667 - Arrangements of transducers for ultrasonic flowmetersCircuits for operating ultrasonic flowmeters
G01N 29/024 - Analysing fluids by measuring propagation velocity or propagation time of acoustic waves
G01N 29/22 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic wavesVisualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object Details
G01N 29/44 - Processing the detected response signal
A pinch valve system includes a closing element arranged in an axial direction and includes a closing piece, a permanent magnetic holding device to hold the closing element by a permanent magnetic force in an open or closed position, without energy being supplied to the permanent magnetic holding device, an electromagnetic actuating device to carrying out a switching process, with which the closing element is configured to be moved from the open position to the closed position or from the closed position to the open position, an energy storage device to store an electrical energy which is sufficient to carry out the switching process, and a controller programmed with a predetermined rest position, which is the open or closed position, and the controller configured to trigger the switching process with which the closing element is brought to the rest position by the energy stored in the energy storage device.
F16K 7/04 - Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage with tubular diaphragm constrictable by external radial force
F16K 31/08 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet using a permanent magnet
21.
Viscometer and a method for determining a concentration of a component in a fluid using such a viscometer
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.
G01N 11/14 - Investigating flow properties of materials, e.g. viscosity or plasticityAnalysing materials by determining flow properties by moving a body within the material by using rotary bodies, e.g. vane
G01N 33/487 - Physical analysis of biological material of liquid biological material
A device for tangential flow filtration includes a filter unit having first and second fluid openings, a filter element and a permeate opening, a first flow connection to connect the first fluid opening to a reservoir, a second flow connection to connect the second fluid opening to the reservoir, a first centrifugal pump in the first flow connection to convey the fluid from the reservoir to the filter unit, a first controller to actuate the first centrifugal pump, the filter unit designed such that the fluid for tangential flow filtration is capable of flowing substantially parallel to the filter element, a second centrifugal pump in the second flow connection, with which a counter-pressure is capable of being generated at the second fluid opening, and a second controller to actuate the second centrifugal pump.
B01D 29/90 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor having feed or discharge devices for feeding
B01D 29/60 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor integrally combined with devices for controlling the filtration
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.
An electromagnetic rotary drive designed as a temple motor is proposed, with a rotor (3) comprising a ring-shaped or disk-shaped magnetically effective core (31), and with a stator (2) designed as a bearing and drive stator, by means of which the rotor (3) can be magnetically driven without contact in the operating state about a desired axis of rotation which defines an axial direction (A), and by means of which the rotor (3) can be magnetically levitated without contact with respect to the stator (2), wherein the rotor (3) is actively magnetically levitated in a radial plane (E) perpendicular to the axial direction (A) and is passively magnetically stabilized in the axial direction (A) and against tilting, wherein the stator (2) has a plurality of coil cores (25), each of which comprises a longitudinal limb (26) extending in the axial direction (A) and a transverse limb (27) arranged in the radial plane (E), which extends from the longitudinal limb (26) in a radial direction and is bounded by an end face (211) facing the magnetically effective core (31) of the rotor (3), and wherein at least one concentrated winding (61) is arranged on each longitudinal limb (26) which surrounds the respective longitudinal limb (26). Each longitudinal limb (26) comprises a first portion (261) and a second portion (262) which are arranged adjacent to each other with respect to the axial direction (A), wherein the transverse limb (27) is arranged at the second portion (262), wherein the end face (211) of the transverse limb (27) has a first distance (A) in the radial direction from the first portion (261) of the associated longitudinal limb (26) and a second distance (A2) in the radial direction from the second portion (262), and wherein the second distance (A2) is greater than the first distance (A1). Furthermore, a centrifugal pump having such a rotary drive (1) and a pump unit are proposed by the invention.
An electromagnetic rotary drive designed as an internal rotor is proposed, with a rotor (3) comprising a ring-shaped or disk-shaped magnetically effective core (31) which is surrounded by a radially externally arranged stator (2), wherein the stator (2) has a plurality of stator poles (21) which are arranged around the magnetically effective core (31) and each of which in each case is delimited by an end face (211) facing the magnetically effective core (31) of the rotor (3), wherein the stator (2) is designed as a bearing and drive stator, by means of which the rotor (3) can be magnetically driven without contact in the operating state about a desired axis of rotation which defines an axial direction (A), and by means of which the rotor (3) can be magnetically levitated without contact with respect to the stator (2), wherein the rotor (3) is actively magnetically levitated in a radial plane (E) perpendicular to the axial direction (A) and is passively magnetically stabilized in the axial direction (A) and against tilting. The magnetically effective core (31) of the rotor (3) has a rotor height (HR) which is the maximum extension of the magnetically effective core (31) in the axial direction (A), wherein the rotor height (HR) is greater than a stator pole height (HS) which is defined by the maximum extension of the end faces (211) of the stator poles (21) in the axial direction (A). Furthermore, a centrifugal pump having such a rotary drive (1) and a pump unit are proposed by the invention.
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.
F04D 17/04 - Radial-flow pumps specially adapted for elastic fluids, e.g. centrifugal pumpsHelico-centrifugal pumps specially adapted for elastic fluids having non-centrifugal stages, e.g. centripetal of transverse-flow type
F04D 25/06 - Units comprising pumps and their driving means the pump being electrically driven
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.
A pumping device includes a single-use device and a reusable device. The single-use device is to be inserted into the reusable device and includes two pump units in series, one behind the other. Each pump unit includes a rotor for a bearingless motor, and can be magnetically levitated and driven without contact for rotation about an axial direction. The reusable device includes a stator for each rotor which form an electromagnetic rotary drive for rotating the rotor about the axial direction. Each stator is a bearing and drive stator with which the rotor can be magnetically driven and levitated without contact with respect to the stator. An independent control device is provided for each stator, and can independently activate a respective stator.
A centrifugal pump for conveying a fluid, includes a pump housing, a rotor configured to convey the fluid disposed within the housing; and a stator which, together with the rotor, forms an electromagnetic rotary drive configured to rotate the rotor about an axial direction. The stator is a bearing and drive stator with which the rotor capable of being magnetically driven without contact and magnetically levitated without contact with respect to the stator. The rotor is passively magnetically levitated in the axial direction, and actively magnetically levitated in a radial plane perpendicular to the axial direction. The pump housing includes comprising a bottom and a cover, and the rotor is arranged in the pump housing between the bottom and the cover with respect to the axial direction. An indentation is disposed in the bottom or in the cover, the indentation being configured to generate a local turbulence.
An ultrasonic measuring device for the measurement of a flow of a fluid, includes a measuring tube, a first chamber and a second chamber. The measuring tube has a central axis, which defines a flow direction for the fluid; The first chamber has a first ultrasonic transducer arranged therein. The second chamber has a second ultrasonic transducer arranged therein. The measuring tube includes an inlet and an outlet for the fluid. The first ultrasonic transducer and the second ultrasonic transducer bound a rectilinear measuring section for the fluid, the first chamber and the second chamber being configured and arranged such that the fluid is capable of flowing around each of them. The first ultrasonic transducer and the second ultrasonic transducer are arranged such that the measuring section extends in the flow direction.
G01F 1/66 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
G01F 1/667 - Arrangements of transducers for ultrasonic flowmetersCircuits for operating ultrasonic flowmeters
A fan having a rotor for generating a fluid flow includes a stator and a rotor, which form an electromagnetic rotary drive for rotating the rotor about an axial direction. The rotary drive is an external rotor, and the rotor includes a magnetically effective core configured in an annular manner. The impeller includes a hub on which a plurality of blades configured to generate the fluid flow is arranged, and the stator is a bearing and drive stator configured to magnetically drive the rotor without contact and magnetically levitate the rotor without contact with respect to the stator. The rotor is capable of being actively magnetically levitated in a radial plane perpendicular to the axial direction, the hub of the impeller completely enclosing the magnetically effective core of the rotor, and the stator is encapsulated in a stator housing and formed of a low-permeable material.
An ultrasonic measuring includes a housing having a measuring channel and ultrasonic transducers. The housing is releasable attached to a pipe such that the measuring channel is capable of receiving the pipe and fixing the pipe with respect to the housing. The ultrasonic transducers emit and receive ultrasonic signals, and include first and second ultrasonic transducers. The first ultrasonic transducers define a first measuring section so as to be capable of exchanging ultrasonic signals, and the second ultrasonic transducers define a second measuring section so as to be capable of exchanging ultrasonic signals. The ultrasonic transducers are aligned such that the first and second measuring sections extend obliquely to a flow direction, and such that a measuring plane is defined by a center axis of the measuring channel and is different from a measuring plane defined by the center axis of the measuring channel and the second measuring section.
G01F 1/66 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
G01N 29/22 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic wavesVisualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object Details
G01F 1/667 - Arrangements of transducers for ultrasonic flowmetersCircuits for operating ultrasonic flowmeters
G01N 9/24 - Investigating density or specific gravity of materialsAnalysing materials by determining density or specific gravity by observing the transmission of wave or particle radiation through the material
G01N 11/04 - Investigating flow properties of materials, e.g. viscosity or plasticityAnalysing materials by determining flow properties by measuring flow of the material through a restricted passage, e.g. tube, aperture
G01N 29/024 - Analysing fluids by measuring propagation velocity or propagation time of acoustic waves
G01N 29/032 - Analysing fluids by measuring attenuation of acoustic waves
33.
MIXING DEVICE HAVING A STIRRING ELEMENT, AND MIXING DEVICE SYSTEM
The present invention relates to a mixing device having a stirring element (7) that comprises: a container (3) for receiving fluids and/or solids; and at least one rotatable stirring element (7) for mixing the fluids and/or solids; wherein the stirring element (7) comprises a first bearing element (23) and a second bearing element (25) which are arranged at or near opposite ends of the stirring element (7); wherein the first bearing element (23) is mounted on a first face (15) of the container (3) and the second bearing element (25) is mounted on an opposite second face (17) of the container (3); wherein the first bearing element (23) comprises at least one non-permanently magnetized element (33) such that it can be moved in rotation by externally induced reluctance forces, and wherein the second bearing element (25) is mounted in a contactless manner by externally induced magnetic forces. The invention also relates to a mixing device system.
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.
H02K 7/09 - Structural association with bearings with magnetic bearings
F16C 32/04 - Bearings not otherwise provided for using magnetic or electric supporting means
H02K 21/14 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
35.
Electromagnetic rotary drive and rotational device
An electromagnetic rotary drive includes a rotor, a stator and windings. The rotor includes a magnetically effective core. The rotor is contactlessly magnetically drivable about an axis of rotation and the rotor is contactlessly magnetically levitatable. The stator has coil cores, each with a longitudinal limb parallel with the axis and a transverse limb extending radially, the transverse limb being perpendicular to the axis. The windings generate an electromagnetic rotational field, each winding surrounding one longitudinal limb, such that the stator is free of permanent magnets. The rotor is ferromagnetic or ferrimagnetic with one preferential magnetic direction extending radially, and the core of the rotor has a magnetic resistance in the preferential magnetic direction, the magnetic resistance at most half as large as the magnetic resistance in a direction, which is perpendicular to the preferential magnetic direction and perpendicular to the axial direction.
H02K 21/16 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having annular armature cores with salient poles
36.
Ultrasonic measuring device having transducers housed in a clamping device
An ultrasonic measuring device for measuring a fluid flowing in a pipe includes a housing and transducers. The housing receives and fixes the pipe, so that the fluid can flow through a central recess in a flow direction. The ultrasonic transducers emit and receive ultrasonic signals. Two first ultrasonic transducers are arranged laterally on a first side of the central recess, and two second ultrasonic transducers are arranged on a second side of the central recess. The second side is opposed to the first side, so that the recess is located between the first and the second ultrasonic transducers, and the ultrasonic transducers are arranged and aligned so that one of the first ultrasonic transducers emits a first measuring signal to one of the second ultrasonic transducers obliquely to the flow direction and receive a second measuring signal emitted by the second ultrasonic transducer obliquely to the flow direction.
G01F 1/66 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
G01F 15/02 - Compensating or correcting for variations in pressure, density, or temperature
G01N 9/24 - Investigating density or specific gravity of materialsAnalysing materials by determining density or specific gravity by observing the transmission of wave or particle radiation through the material
G01N 29/22 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic wavesVisualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object Details
G01N 11/04 - Investigating flow properties of materials, e.g. viscosity or plasticityAnalysing materials by determining flow properties by measuring flow of the material through a restricted passage, e.g. tube, aperture
G01N 29/032 - Analysing fluids by measuring attenuation of acoustic waves
G01N 29/024 - Analysing fluids by measuring propagation velocity or propagation time of acoustic waves
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.
A mixing apparatus for mixing or stirring substances includes a mixing tank for receiving the substances, a rotor arranged in the mixing tank with which a vane for mixing or stirring the substances can be driven to rotate about an axial direction, and a stator arranged outside the mixing tank and with which the rotor can be driven contactlessly magnetically to rotate about the axial direction in the operating state and is supported magnetically with respect to the stator. A bar extends in the axial direction and is rotationally fixed to the rotor, and a limiting element fixed with respect to the mixing tank cooperates with the bar, with the limiting element being configured such that the bar rotates with respect to the limiting element and with a tilt of the rotor being limited by a physical contact between the bar and the limiting element.
An electromagnetic rotary drive includes a contactlessly magnetically drivable rotor that is coil-free and free of permanent magnets and that includes a magnetically effective core, and a stator by which the rotor is contactlessly magnetically drivable about a desired axis of rotation in the operating state. The stator has a plurality of coil cores of which each includes a bar-shaped longitudinal limb extending from a first end in a direction in parallel with the desired axis of rotation up to a second end, all the first ends being connected by a reflux of windings generate an electromagnetic rotational field of which each surrounds one of the longitudinal limbs. The coil cores include a plurality of permanent magnets by which a permanent magnetic pre-magnetization flux can be generated.
H02K 21/38 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with rotating flux distributors, and armatures and magnets both stationary
H02K 21/44 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with rotating flux distributors, and armatures and magnets both stationary with armature windings wound upon the magnets
A61M 1/10 - Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
F16C 32/04 - Bearings not otherwise provided for using magnetic or electric supporting means
H02K 7/09 - Structural association with bearings with magnetic bearings
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.
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.
B01F 7/00 - Mixers with rotary stirring devices in fixed receptacles; Kneaders
H02K 5/18 - Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
H02K 21/38 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with rotating flux distributors, and armatures and magnets both stationary
H02K 11/215 - Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
H02K 5/128 - Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas using air-gap sleeves or air-gap discs
H02K 29/08 - Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices using magnetic effect devices, e.g. Hall-plates or magneto-resistors
H02K 21/44 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with rotating flux distributors, and armatures and magnets both stationary with armature windings wound upon the magnets
H02K 7/14 - Structural association with mechanical loads, e.g. with hand-held machine tools or fans
H02K 16/00 - Machines with more than one rotor or stator
42.
Flow regulator as well as method for setting a predefinable volume flow
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.
A rotational machine, designed as a bearing free motor, including a stator designed as a bearing and drive stator having a stator winding and a disc-shaped rotor stored magnetically contact free within the stator. An axial height (H) of the rotor is smaller than or equal to a half diameter (D) of the rotor and with the rotor being passively stabilized by reluctance forces with regard to the stator both against a displacement along a rotational axis (A) of the rotor and also against a tilting from an equilibrium position (G), and with the stator including a permanent magnet for the generation of a homopolar magnetic flux (HΦ). The rotor is a ring-like rotor rotatably arranged about a pole piece of the stator and the rotor includes a ferromagnetic material (FM) and no permanent magnet.
F16C 32/04 - Bearings not otherwise provided for using magnetic or electric supporting means
H02K 29/08 - Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices using magnetic effect devices, e.g. Hall-plates or magneto-resistors
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.
The invention relates to a rotation machine (1) designed as a motor free of bearings, comprising a stator (2), which is designed as a bearing and driving stator with a stator winding (3), and a disc-shaped rotor (4), which is mounted magnetically without contact inside the stator (2). An axial height (H) of the rotor (4) is less than or equal to a half diameter (D) of the rotor (4), and the rotor (4), with respect to the stator (2), is passively stabilized by reluctance forces both against a movement along a rotation axis (A) of the rotor (4) and also against tilting from an equilibrium position (G), wherein the stator (2) comprises a permanent magnet (6) in order to generate a homopolar magnetic flow (ΗΦ). According to the invention, the rotor (4) is a ring-like rotor (4) arranged to rotate about a pole piece (5) of the stator (2), and the rotor (4) comprises a ferromagnetic material (FM) and no permanent magnet. The invention further relates to a ferromagnetic rotor (4) without permanent magnet, and to a device with a rotation machine (1).
A61M 1/10 - Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
H02K 7/09 - Structural association with bearings with magnetic bearings
H02K 29/08 - Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices using magnetic effect devices, e.g. Hall-plates or magneto-resistors
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 rotary pump (1), comprising a magnetic rotor (3) which is arranged in a pump housing (2) and which has a magnetic rotor plane (310), which rotor (3), for the delivery of a fluid (4), is operatively connected to a drive (5). On the pump housing (2) there is provided an inlet opening (6) for the admission of the fluid (4) into the pump housing (2), and a radial outlet duct (7) for conveying the fluid (4) out of the pump housing (2). Here, the drive (5) is a bearingless motor having a stator (51) which is designed as a bearing and drive stator and which has a magnetic stator plane (510), wherein the stator (51) bears, in the stator plane (510), a drive coil (81) and bearing coil (82) and/or a drive bearing coil (8182). The rotor (3) is mounted in a magnetically contactless manner within the stator (51). According to the invention, in the region of the stator (51), the outlet duct (7) is led radially outward away from the pump housing (2) such that a central axis (M) of the radial outlet duct (7) coincides with the magnetic rotor plane (310) or with the magnetic stator plane (510).
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).
H01L 21/306 - Chemical or electrical treatment, e.g. electrolytic etching
B05C 13/02 - Means for manipulating or holding work, e.g. for separate articles for particular articles
H01L 21/67 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components
49.
Rotational machine, method for the determination of a tilting of a rotor of a rotational machine, as well as a processing plant
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.
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).
A centrifugal pump is proposed having a pump housing (2) which has an inlet (21) and an outlet (22), a rotor (3) having a front side (31) facing the inlet (21) and a rear side (32) remote from the inlet (21), and wherein the rotor (3) has a first pump wheel (4) having first vanes (41) for the generation of a main flow from the inlet (21) to the outlet (22), wherein a second pump wheel (5) having second vanes (52) and having at least one relief bore (6) is provided at the rotor (3) for the generation of a recirculation flow which is directed from the rear side (32) of the rotor (3) through the at least one relief bore (6) and wherein a partition element (7), which separates the recirculation flow at least partly from the main flow in the region of the second pump wheel (5), is provided between the two pump wheels (4, 5). A method for the compensation of the axial thrust in a centrifugal pump is furthermore proposed.
F01D 1/02 - Non-positive-displacement machines or engines, e.g. steam turbines with stationary working-fluid guiding means and bladed or like rotor
F04B 35/04 - Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
F04D 29/22 - Rotors specially for centrifugal pumps
The invention relates to a rotation machine (1) designed as a non-bearing type motor, comprising a stator (2) designed as a bearing type and drive stator with a magnetic stator plane (21), and a magnetic rotor (3) mounted within the stator (2) in a magnetic, non-contact manner with a magnetic rotor plane (31), wherein an axial height (H) of the rotor (3) is less than or equal to a half diameter (D) of the rotor (3), and the rotor (3) is passively stabilized against an axial shift (ΔY) and against a tipping (Δα) from an equilibrium position (G) relative to the magnetic stator plane (21) by way of reluctance forces. At the stator (2), a sensor unit (4) comprising a first sensor (41) and a second sensor (42) is provided in such a way that a first sensor signal (410) from a first measurement zone (411) of the rotor (3) can be evaluated using the first sensor (41) and a second sensor signal (420) from a second measurement zone (421) of the rotor (3) can be evaluated using the second sensor (42) for determining a deflection of the rotor (3) from the equilibrium position (G). According to the invention, a first control measurement zone (4111), which is part of the first measurement zone (411), is provided at the rotor (3) either below or above the magnetic rotor plane (31) for determining the tipping (Δα) of the rotor (3) against the magnetic stator plane (21) in such a way that at least 50% of the first sensor signal (410) that can be generated from the first measurement zone (411) can be generated by the first control measurement zone (4111) at the first sensor (41).
A mixing apparatus is proposed having a container (2) for the mixing of media which has at least one inlet (31, 32, 33, 34, 35, 36) for the media to be mixed or at least one outlet (4), with a central cut-out (5) being provided which extends in a longitudinal direction (A) into the container and is bounded relative to the inner space (6) of the container (2) by a wall (51), with a permanently magnetic mixing member (7) being provided in the container (2) adjacent to the cut-out (5) for the mixing of the media, and with a drive unit (8) being provided in the cut-out (5) by which the mixing member (7) can be set into rotation via a magnetic coupling. The drive unit (8) is movably arranged in the cut-out (5) such that the position of the mixing member (7) in the container is variable in a controlled manner.
patents
