This pump includes a computing device, with a vibration waveform analysis section and a memory, the analysis section being designed to control the motor, by comparing a vibration waveform received from the vibration sensor with vibration waveforms saved in the memory.
Cette pompe comprend un dispositif (9) informatique, ayant une partie d'analyse des conformations de vibration et une mémoire, la partie d'analyse étant conçue pour commander le moteur (4), par comparaison d'une conformation de vibration reçue du capteur (8) de vibrations aux conformations de vibration déjà en mémoire.
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
Goods & Services
Lifting installations [other than ski lifts]; Drive units, other than for land vehicles; Sewage treatment machines; Sludge pumps; Submersible electric motors [other than for land vehicles]; Valves [parts of machines]; Control mechanisms for machines, engines or motors; Pumping station assemblies; Pump-motor assemblies; Pumps [parts of machines, engines or motors]; Mixers [machines]; Pump installations; Motors, other than for land vehicles. Electronic control systems; Electrical controls; Electrical and electronic components; Water leakage detection alarms; Sensors used in plant control; Electrical remote control apparatus; Digital measuring apparatus; Electric control devices for energy management; Measuring devices, electric; Pressure controllers [gauges]; Electric sensors; Measuring instruments; Level controllers [electrical apparatus]; Electric alarms; Variable speed control apparatus; Electronic controllers; Data loggers; Pressure sensors; Pressure measuring apparatus; Control modules (Electric or electronic -); Measuring sensors; Sensors for measuring instruments; Electric control valves; Machine control software; Flow control installations [electric]; Testing apparatus and instruments; Pressure regulators; Frequency transformers; Flowmeters. Sewage disposal plants; Waste water treatment tanks; Level controlling valves in tanks; Wastewater treatment installations; Level control valves.
Valve comprising a body (2), a centred butterfly (1), mounted with the ability to rotate inside the body (2) from an open position revealing the passage to a closed position covering said passage, and a seal (3) arranged inside a housing which is delimited by the seat and by a face, opposite the seat in the closed position, of the butterfly, the seat and the face converging towards the inside in the axial direction. The seal (3) moves freely in the housing.
In this motor-pump unit, comprising an impeller (1) surrounded by a volute (2) and mounted on the output shaft (3) of an electric motor (4) surrounded by a housing (5) closed on the side opposite the impeller (1) by a cover (6), an extension (7) is interposed between the cover (6) and the housing (5), and a sensor (11) for sensing a property of the impeller (1) is housed in the extension (7).
In this motor-pump unit, comprising an impeller (1) surrounded by a volute (2) and mounted on the output shaft (3) of an electric motor (4) surrounded by a housing (5) closed on the side opposite the impeller (1) by a cover (6), an extension (7) is interposed between the cover (6) and the housing (5), and a sensor (11) for sensing a property of the impeller (1) is housed in the extension (7).
Dans cette pompe,l'angle entre le plan imaginaire tangent au bec et passant par l'axe et une droite imaginaire, perpendiculaire à l'axe et passant par le point, le plus éloigné de l'axe de l'intersection de la surface supérieure d'un doigt avec la surface latérale d'attaque de ce doigt, est compris entre 110 et 140.degree..
F04D 7/04 - Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogeneous
F04D 13/08 - Units comprising pumps and their driving means the pump being electrically driven for submerged use
F04D 29/22 - Rotors specially for centrifugal pumps
F04D 29/42 - CasingsConnections for working fluid for radial or helico-centrifugal pumps
In this pump, the angle between the imaginary tangent plane to the lip and passing through the axis and an imaginary straight line, perpendicular to the axis and passing through the point furthest from the axis of intersection of the upper surface of a finger with the lateral leading surface of this finger, is between 110 and 140°.
F04D 7/04 - Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogeneous
Valve comprising a body (2), a butterfly (1) which is centred, and mounted with the ability to rotate inside the body (2) from an open position uncovering the passage to a closed position covering same and a seal (3) arranged inside a housing delimited by the seat and by a face, facing the seat in the closed position, of the butterfly, the seat and the face converging in the axial direction toward the inside. The seal (3) is free in the housing.
A flow-conducting component having at least one functional region for contact with a flowing medium and at least one functional region having supporting characteristics is provided. The two functional regions are produced from a material by successively solidifying layers using radiation in a manner that provides different material characteristics in the different functional regions.
B22F 5/10 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
A vortex pump with an impeller is provided. The impeller includes blades for delivering solids-containing media which are arranged in bundles. The spacing the blades in the bundles is smaller than the spacing of the bundles from each other.
09 - Scientific and electric apparatus and instruments
Goods & Services
Unit detecting water stages via float switches, analogue
sensors, integrated pneumatic pressure sensors or a bubble
system; all for use with pumps in relation to waste water
and sewage applications.
A valve with removable components is provided. The valve includes a housing in which a seat is arranged between a flow inlet and a flow outlet. A shut-off body displaceable by a displacing element is arranged to shut off flow through the seat. The shut-off body displacing element is surrounded at least partially by a guide sleeve which is connected to the seat in a manner which allows the seat to be removed with the guide sleeve, shut-off body and shut-off body displacing element.
A method for geometrically designing a flow-conducting component, and a corresponding flow-conducting component, are provided. The flow-conducting includes a flow direction-changing surface arranged to change the direction of a flow by a certain angle from an inflow direction in a first section to an outflow direction in a second section, the flow direction-changing surface being formed corresponding to a contour of line segments having formed based on dependent triangulation between a bisector of the certain angle and sides of the first and/or second sections.
F15D 1/04 - Arrangements of guide vanes in pipe elbows or duct bendsConstruction of pipe conduit elements for elbows with respect to flow, e.g. for reducing losses of flow
F15D 1/14 - Diverting flow into alternative channels
A rotor for a reluctance machine and a method of producing a rotor for a reluctance machine is provided. The rotor is formed as a soft magnetic element which is cylindrical in shape. The soft magnetic element has recesses for forming flux barriers, one or more flux barriers being at least partially filled with a filler material, and the filler material of said flux barriers extending up to the rotor periphery and forming part of the rotor periphery.
A flow-conducting component such as a pump impeller is provided. Passages between vanes of the flow-conducting component include notches in the form of transitions between the vane and a common surface, such as a cover disk. The notches include a transition surface having a geometric configuration determined in accordance with a calculated load spectrum along at least a portion of the length of the notch and in accordance with a particular geometric pattern.
A rotor for a reluctance machine is provided. The rotor includes a soft magnetic element which is cylindrical in shape. The soft magnetic element has recesses forming flux barriers. At least part of the recesses are filled with an electrically conducting and magnetically non-conducting filler material such that a starting cage is formed in a peripheral region of the rotor. The ratio of the surface of the filled region of the flux barriers to the surface of the region of the unfilled flux barriers is at least 0.2 for at least one rotor cycle.
A method and apparatus for controlling the motor of a synchronous reluctance motor for a pump, in particular a centrifugal pump, are provided. The motor includes a variable-frequency drive which controls the synchronous reluctance motor in a terminal volts/hertz operation. The pump, in particular a centrifugal pump, includes at least one synchronous reluctance motor and a variable-frequency drive for a motor control, the variable-frequency drive being a terminal volts/hertz variable-frequency drive.
H02P 27/08 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters with pulse width modulation
F04D 1/00 - Radial-flow pumps, e.g. centrifugal pumpsHelico-centrifugal pumps
F04D 13/06 - Units comprising pumps and their driving means the pump being electrically driven
F04D 15/00 - Control, e.g. regulation, of pumps, pumping installations, or systems
The invention relates to a method for determining the delivery rate of a pump. In this context, a value of the delivery level and a value of the power of the pump are determined. A probability density function is calculated for the delivery level and the power. A first probability density function of the delivery rate is calculated on the basis of a delivery level-delivery rate relationship and the probability density function of the delivery level. A second probability density function of the delivery rate is determined on the basis of a power-delivery rate relationship and the probability density function of the power. A combined probability density function of the delivery rate is determined on the basis of the first and second probability density functions. The delivery rate is determined on the basis of the combined probability density function.
The invention relates to a centrifugal pump with a rotor having at least one blade (4), and to a method for configuring the profile of a blade (4). The blade (4) has a profile which is obtained by superposing a symmetric profile (10, 11) with at least one additional profile (12, 13) and a camber line whose blade inlet angle is smaller than 0°.
F04D 7/04 - Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogeneous
F04D 29/22 - Rotors specially for centrifugal pumps
Vortex pump with an impeller (2). Said impeller (2) comprises blades (7) for delivering solids-containing media. The blades (7) are arranged in bundles (12). The distance (14) of the blades (7) in said bundles (12) is smaller than the distance (13) of the bundles (12) from each other.
A fluid conducting system with cathodic corrosion protection is provided for at least one device that influences and/or acts upon a flow rate, such as a pump and/or valve. The device includes at least one connection device such as a device connection flange. At least one flow rate guiding device such as a pipe includes a connection means such as a pipe connection flange. The system includes annular anodes arranged between the connection devices and connection means, where anodes are electrically connected by electrical conducting lines to a monitoring device. The internal diameter of the anodes is preferably equal to the internal diameter of the flow rate guiding device and/or the inner diameter of the inlet and/or outlet of flow influencing device.
F04D 29/42 - CasingsConnections for working fluid for radial or helico-centrifugal pumps
F04D 7/06 - Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being hot or corrosive, e.g. liquid metal
F16K 3/02 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing facesPackings therefor
23.
Plastic pump housing consisting of an inner casing, an outer casing and filling material therebetween
A pump housing made of plastic sections is provided. The housing includes a first casing that has a first side facing the region in which a pumped medium will flow, and a second casing that has a second side facing the environment. The pump housing's first casing and second casing are both dimensionally stable, with a space between the first casing and the second casing. A filler material such as a self-expanding foam may be provided in the space. The pump casings may be standardized components, and multiple casings may be assembled to form pump housings to suit a particular application.
An arrangement for compensating the axial thrust of a fluid-flow machine is provided. A load-relieving element is non-rotatably connected to a shaft. A flow-restrict gap is formed by the load-relieving element and a counter-element secured to a housing of the fluid-flow machine. The counter-element is provided with a device for maintaining the distance between the load-relieving element and the counter-element. The device includes at least one force-generating element that generates a force that acts in opposition to the axial thrust in order to avoid component contact.
A process of producing a compact swing type check valve body with reduced weight, the valve comprising a valve body (1) accommodating a sub-assembly of a disc (2) and a disc carrier (3) the sub-assembly (2, 3) constructed and disposal to swing about a hinge pin (4) during the valve operation, the valve body consisting of one each flow bore area and a neck area which together configure an interior volume for disc opening travel constituting a swept volume including a core clearance to allow interference-free swing travel of the subassembly inside the valve body wall, the process comprising the steps of constructing the swept volume in an elbow shape to allow free swinging or curvilinear travel of the disc, the swept volume forming the inner side or the core of the valve body; forming a radial clearance between the outer diameter of the disc and inner wall of the valve body; forming an outer profile of the valve body over the inner wall including the flow bore and neck areas, wherein the radial clearance is contracted based on the casting tolerances, profile of the disc, and associated valve body production parameters, wherein a dimensional offset is maintained from the formed elbow towards outer side by the disc swept volume, and wherein a wall thickness is built over the inner wall to outer wall constituting said outer profile.
A method for setting up a wastewater pumping station in a wastewater shaft and a wastewater pumping station are provided. At least one solids-collecting tank which separates solids from wastewater containing solids, a liquids-collecting tank which received the treated wastewater from the at least one solids collecting tank, and a pump for emptying wastewater from the liquids-collecting tank via the solids-collecting tank, are produced as separate subassemblies. At least the solids-collecting tank and the pump are prefabricated in the form of a construction unit, and the construction unit is combined with the already on-site liquids-collecting tank during installation in the likewise already on-site wastewater shaft.
The invention relates to an arrangement comprising a plastic container (1) and a flow-guiding component. Said flow-guiding component comprises a housing (8). Said housing (8) is interlockingly engaged with the container (1) by rotational sintering.
The invention relates to a flow-conducting component. The component has at least one functional region (8) for contact with a flowing medium. The flow-conducting component also has at least one functional region (7) having supporting characteristics. The two functional regions are produced from a construction material. This is accomplished by successively solidifying layers by means of radiation. The different characteristics of the functional regions are generated by means of variations of the radiation.
The invention relates to a method for treating a liquid. A feed stream is separated into a permeate stream and a retentate stream by means of a member arrangement. At least a portion of the retentate stream is discharged from the member arrangement via a displacer arrangement as a defined displacer volume. The feed stream is divided into a portion that is fed into the membrane arrangement via a displacer arrangement as a defined displacer volume and into a portion that is fed to the membrane arrangement by means of a conveying unit. The yield is varied by changing the ratio of the speed of the conveying unit to the speed of the displacer arrangement.
The invention relates to a method for operating a reluctance machine, which comprises a rotor composed of a soft magnetic material and having an even number of salient poles and a stator having a multi-strand offset diametral winding, wherein the strands of the diametral windings are supplied with currents that are phase-shifted from each other, and the current-supply states are changed abruptly in dependence on the rotor angle.
H02K 37/02 - Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of variable reluctance type
The invention relates to a centrifugal pump impeller (1) having a non-metallic running wheel part (7) and a metallic hub part (8) connected to the running wheel part (7), said hub part being arranged on a shaft (5). According to the invention, a releasable connection is established between the running wheel part of (7) and the hub part (8).
A wastewater lifting station is provided, in which at least one solids collection tank contains at least one screen for guiding wastewater therethrough and retain solids. The screen divides the solids collection tank into a region containing solids and a region free of solids, and is connected in a pivotable manner by at least one hinge to a flange of the solids collection tank. The screen in an edge region away from the hinge has a rake of comb-type webs and holes that are open on one side in the screen plane. The wastewater containing solids flows through a feed into the collection tank, is filtered through the screen, and the wastewater that is free of solids is collected in a tank downstream. When the wastewater lifting station pumps, the wastewater that is free of solids is pumped by a pump in counterflow through the screen into a pressurized line while the feed is shut off by a check valve, and the screen pivots about the hinge and is back-flushed during the process. Reliable cleaning of the screen, even of fibers, is achieved during pumping owing the rake shape and the pivoting of the screen.
E03F 5/22 - Adaptations of pumping plants for lifting sewage
B01D 29/03 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor with flat filtering elements self-supporting
E03F 5/10 - Collecting-tanksEqualising-tanks for regulating the run-offLaying-up basins
E03F 5/14 - Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
33.
CENTRIFUGAL PUMP WITH AXIALLY DISCHARGING RADIAL IMPELLER
The invention relates to a centrifugal pump comprising at least one radial impeller (1). Said impeller (1) is designed as an axially discharging impeller. A conducting device (4) is located downstream of the impeller (1).
The invention relates to a centrifugal pump comprising an impeller (1). A conducting device (4) is located downstream of the impeller (1). The conducting device (4) comprises blades between which conduits (8) are formed. According to the invention, guiding elements (9) are arranged at the exit of at least some of the conduits (8).
A pump arrangement, particularly a magnetic clutch pump arrangement, includes a containment can with a central longitudinal axis which hermetically seals an enclosed chamber with respect to the inner chamber formed by the pump housing. The containment can has a base with at least one bead extending into the inner chamber. The at least one bead is radially spaced from the central longitudinal axis of the containment shell by at least one defined distance relationship. A method for producing a containment can for a pump arrangement is also provided.
F04D 13/02 - Units comprising pumps and their driving means
H02K 7/108 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction clutches
H02K 49/10 - Dynamo-electric clutchesDynamo-electric brakes of the permanent-magnet type
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 7/00 - Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
F04D 13/06 - Units comprising pumps and their driving means the pump being electrically driven
B22D 25/02 - Special casting characterised by the nature of the product by its peculiarity of shapeSpecial casting characterised by the nature of the product of works of art
F04D 25/06 - Units comprising pumps and their driving means the pump being electrically driven
36.
Drive rotor for a magnetically coupled pump having tolerance rings
A magnetic clutch pump arrangement is provided. The pump arrangement includes a pump housing containing an impeller shaft, a containment shell sealing an enclosed chamber within the housing, an impeller mounted on the impeller shaft, an inner rotor mounted on the other end of the impeller shaft, a drive motor, a drive shaft drivable by the drive motor, and an outer rotor outside of the enclosed chamber, mounted on the drive shaft, which magnetically interacts with the inner rotor. The external rotor has a hub with a through-bore having an interior surface which includes an axial groove extending parallel to the axis of rotation which cooperates with a feather key and a drive shaft key groove to rotationally secure the hub to the drive shaft. At least one radially circumferential first groove and at least one radially circumferential second groove in the hub interior surface receive tolerance rings.
F16D 1/08 - Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hubCouplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with hub and longitudinal key
F04D 13/02 - Units comprising pumps and their driving means
F04D 13/06 - Units comprising pumps and their driving means the pump being electrically driven
F16D 3/77 - Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members shaped as an elastic ring centered on the axis, surrounding a portion of one coupling part and surrounded by a sleeve of the other coupling part the ring being metallic
The invention relates to a jet pump having a straight conduit section for through-flow by a suction medium. A propulsion medium flows into this conduit section. The conduit section comprises a line piece (1) having bores. Sleeve-like elements (3) are arranged in the bores for the supply of the propulsion medium.
F04F 5/24 - Jet pumps, i.e. devices in which fluid flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing liquids, e.g. containing solids, or liquids and elastic fluids
F04F 5/42 - Jet pumps, i.e. devices in which fluid flow is induced by pressure drop caused by velocity of another fluid flow characterised by the input flow of inducing fluid medium being radial or tangential to output flow
Pump arrangement for driving an impeller using an inner rotor which interacts with an outer rotor and the outer rotor having a radially outer circumferential projection
A pump arrangement, in particular a magnetic coupling pump arrangement, includes a pump housing having an interior, a split case which hermetically seals a chamber surrounded by the split case from the interior formed by the pump housing, an impeller shaft with an impeller thereon which can be driven in a rotatable manner about a rotational axis, an inner rotor arranged at an end of the impeller shaft opposite the impeller end, an outer rotor which interacts with the inner rotor, and an adapter element which connects the split case to the pump housing or to a component paired with the pump housing, in particular a housing cover. The adapter element includes a mounting flange which rests against a support surface of the pump housing, in particular of the housing cover (4), on a face adjacent to the interior.
The invention relates to an armature comprising a housing (1) in which a seat (6) is arranged. A shut-off body (3) can be moved by means of an element (5). Said element (5) is surrounded at least partially by a guide sleeve (9). Said guide sleeve (9) comprises a connection with a seat (6).
The invention relates to an agitator comprising a propeller (1). The propeller (1) is driven by a motor (3) via a shaft (2). A transition piece (9) embraces the shaft (2) such that a space (10) is formed. An element (13) that is located in said space (10) is provided with an attachment (14) for sealing purposes.
B01F 7/00 - Mixers with rotary stirring devices in fixed receptacles; Kneaders
B01F 7/06 - Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with propellers
F16J 15/32 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
The invention relates to a centrifugal pump having at least one impeller (1) which is connected in a rotationally fixed manner to a shaft (2). The centrifugal pump comprises a housing (3) with joints (10). The joints (10) have microtoothings.
The invention relates to a method for geometrically designing a flow-conducting component, said flow-conducting component changing the direction of a flow by a certain angle from a first section (1) to a second section (2), the flow having an inflow direction in a first section (1) and an outflow direction in a second section (2); in said method, the contour is formed using triangles.
F15D 1/04 - Arrangements of guide vanes in pipe elbows or duct bendsConstruction of pipe conduit elements for elbows with respect to flow, e.g. for reducing losses of flow
A pump arrangement, in particular a magnetic clutch pump arrangement, includes a pump housing containing an impeller shaft, a containment shell which seals an enclosed chamber within the inner chamber of the pump housing, an impeller mounted on one end of the impeller shaft, an inner rotor mounted on the other end of the impeller shaft, an outer rotor which is mounted on the drive shaft and co-operates with the inner rotor, and an auxiliary impeller mounted in the chamber adjacent to a domed base of the containment can. The auxiliary impeller is secured to the inner rotor and includes vanes and impeller channels for circulation of media.
A pump arrangement, in particular a magnetic clutch pump arrangement, is provided. The pump arrangement includes a pump housing containing an impeller shaft, a containment shell which seals an enclosed chamber within the inner chamber of the pump housing, an impeller mounted on one end of the impeller shaft, an inner rotor mounted on the other end of the impeller shaft, a drive motor, a drive shaft that can be driven by the drive motor, and an outer rotor which is mounted on the drive shaft and co-operates with the inner rotor. The outer rotor has a hub and a first support element, and a hollow cylindrical portion between the hub and the first support element.
A pump arrangement, in particular a magnetic clutch pump arrangement, is provided. The pump arrangement includes a pump housing containing an impeller shaft, an impeller, a casing cover adjacent to the impeller and supporting a plain bearing arrangement. The pump arrangement also includes a containment shell which seals an enclosed chamber within the inner chamber of the pump housing. The plain bearing arrangement includes first and second bearing sleeves connected to the impeller shaft, a first bearing bush which cooperates with the first bearing sleeve via a radial bearing surface and is connected to the pump housing or to a component secured to the pump housing a second bearing bush which cooperates with the second bearing sleeve via a radial bearing surface and is connected to the pump housing or to a component secured to the pump housing, and a retainer ring mounted between the first and second bearing sleeves. The retainer ring has, in the end surface facing the first bearing bush a first annular groove which receives a first axial bearing ring, and in the end surface facing the second bearing bush a second annular groove which receives a second axial bearing ring.
The invention relates to a pump arrangement, in particular a centrifugal pump, in particular a main coolant pump for power stations, comprising a pump housing (2), which defines an interior (3) with an inlet opening (4) for aspirating a conveying medium and with an outlet opening (5) for expelling the conveying medium and which also defines a chamber (7) that is connected to the interior (3), a seal water system (22), which has a first conduit system (29) in order to supply seal water into the chamber (7) defined by the pump housing (2), a second conduit system (32) for evacuating a controlled leakage flow from the chamber (7) defined by the pump housing (2), and a protective valve (35), which is arranged in the second conduit system (32) in order to block the leakage flow that is evacuated from the chamber (7). The invention further relates to a protective valve (35) and to the use of a protective valve (35) in a pump arrangement (1).
F04D 1/00 - Radial-flow pumps, e.g. centrifugal pumpsHelico-centrifugal pumps
F16K 1/32 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces Details
The invention relates to a rotor for a reluctance machine, said rotor comprising a soft magnetic element which is cylindrical in shape. Said soft magnetic element has recesses for forming flux barriers, and at least part of the recesses are filled with an electrically conducting and magnetically non-conducting filler material to form a starting cage. The ratio of the surface of the filled region of the flux barriers to the surface of the region of the unfilled flux barriers is at least 0.2 for at least one rotor pole.
The invention relates to a rotor for a reluctance machine, said rotor comprising a soft magnetic element which is cylindrical in shape. Said soft magnetic element has recesses for forming flux barriers, one or more flux barriers being at least partially filled with a filler material, and the filler material of said flux barriers extending up to the rotor periphery and forming part of the rotor periphery.
The invention relates to a centrifugal pump with a barrel casing (1). A plug-in unit (2) is arranged in the barrel casing (1). The plug-in unit (2) has a shaft (3). At least one impeller (4) is arranged on the shaft (3). The impeller is enclosed by a stage casing (5). The stage casing (5) separates an inner pressure space (9) from an outer pressure space (10). According to the invention, at least one venting device (8) is arranged in the stage casing (5).
The invention relates to a shaft sealing arrangement for a centrifugal pump. The arrangement is provided with a module (4). The module (4) comprises a first slide and mating ring pairing (5) and a second slide and mating ring pairing (6). The pairings (5, 6) are positioned in a tandem arrangement to one another. A spring element (11, 12) is assigned to each pairing (5, 6) . The spring elements (11, 12) generate a pressure force between the slide ring (9, 10) and the mating ring (7, 8). A space between the slide ring-mating ring pairings (5, 6) is rinsed with a liquid from a store (22). The spring elements (11, 12) are arranged in stationary structural components.
The invention relates to a method for starting a variable-speed electric motor, wherein upon detection of locking of the motor shaft a positive torque is applied to the motor shaft, and wherein the positive torque is continuously modified with different frequencies to overcome the locking.
The invention describes a flow-conducting component, the passages between the individual sections in the component being marked with notches, wherein the load spectrum of the notch can be calculated, wherein the notches, which are difficult and/or even impossible to access directly from the outside, are shaped geometrically according to their mechanical load.
The invention relates to a method for controlling the motor of a synchronous reluctance motor for a pump, in particular a centrifugal pump, said motor comprising a variable-frequency drive which controls the synchronous reluctance motor in a terminal volts/hertz operation. The invention also relates to a pump, in particular a centrifugal pump, comprising at least one synchronous reluctance motor and a variable-frequency drive for motor control, the variable-frequency drive being a terminal volts/hertz variable-frequency drive.
The invention relates to a method for producing a rotor for a reluctance machine, in particular for a synchronous reluctance machine, wherein the laminated rotor core is produced by means of punch stacking and two or more adjacent laminations of the core are held together by means of at least one connection point created during the punch stacking, the at least one connection point simultaneously forming a flux barrier of the rotor. The invention further relates to a rotor for a reluctance machine, which rotor comprises a laminated core, which is stacked from at least two lamination cuts, at least two adjacent lamination cuts being connected to each other by means of at least one connection point, wherein the at least one connection point forms at least one flux barrier of the rotor.
H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
The invention relates to a method for determining the delivery rate of a pump. In this context, a value of the delivery level and a value of the power of the pump are determined. A probability density function is calculated for the delivery level and the power. A first probability density function of the delivery rate is calculated on the basis of a delivery level-delivery rate relationship and the probability density function of the delivery level. A second probability density function of the delivery rate is determined on the basis of a power-delivery rate relationship and the probability density function of the power. A combined probability density function of the delivery rate is determined on the basis of the first and second probability density functions. The delivery rate is determined on the basis of the combined probability density function.
A rotor for a reluctance machine is provided. The rotor includes a cylindrical soft-magnetic element having cutouts for forming magnetic flux barriers. Some or all of the flux barriers are divided by one or more webs, with the profile of the individual webs forming a closed line which divides the rotor in the radial direction into an inner and an outer region. The cut-outs may be partially or fully filled with a a paramagnetic or diamagnetic filler material.
A method of synchronizing a synchronous reluctance electric machine wherein the machine has no speed and/or residual magnetization voltage sensor and includes power terminals and rotating masses whose mechanical rotation frequency is subjected to speed transients caused by power cut-off conditions. The method includes at least one step of applying a control voltage with predetermined amplitude and duration to the terminals after the transients, and one step of detecting the electric current induced by the control voltage, the current induced by the voltage having a harmonic spectrum variable according to the frequency differential between the frequency of the control voltage and the mechanical rotation frequency of the rotating masses, to restore power and synchronous rotation control of the machine.
The invention relates to a device comprising a pump (4) driven by a wet-running motor (1). The device further comprises a housing (2) that includes a bushing arrangement (12) for energizing the wet-running motor (1). The bushing arrangement (12) comprises a cable element (14) and an insulating member (15). The bushing arrangement (12) also comprises a force transmission element (20).
The invention concerns a method for the provision of system-specific data. To this end, an optoelectronically readable code (8) is produced by a system unit (5). The code (8) is displayed on a system display (7). The displayed code (8) is optically read using a mobile device (9). Code data (8) is wirelessly transmitted from the mobile device (9) to a receiver (10).
G06K 17/00 - Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups , e.g. automatic card files incorporating conveying and reading operations
G06K 19/06 - Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
G06K 7/10 - Methods or arrangements for sensing record carriers by electromagnetic radiation, e.g. optical sensingMethods or arrangements for sensing record carriers by corpuscular radiation
61.
PLASTIC PUMP HOUSING CONSISTING OF AN INNER CASING, AN OUTER CASING AND FILLING MATERIAL THEREBETWEEN
The invention relates to a pump housing made of plastic. Said housing is provided with a first casing that has a first side facing the pumped medium, and a second casing that has a second side facing the environment. The pump housing is characterized in that the first casing and the second casing are both dimensionally stable and in that there is a space between the first casing and the second casing.
The invention relates to an arrangement for compensating the axial thrust of a fluid-flow machine. A load-relieving element (11) is non-rotatably connected to a shaft (1). A flow-restrictor gap (13) is formed by this element together with a counter-element (12) secured to the housing, said gap being formed between the load-relieving element (11) and the counter-element (12). The counter-element (12) is provided with a device for maintaining the distance between the load-relieving element (11) and the counter-element (12). The device comprises at least one force-generating element (14). Said force -generating element (14) generates a force that acts in opposition to the axial thrust.
A gate valve including a housing with two seat rings and two slide valve plates arranged on a plate holder and located between the seat rings. Each slide plate has a depression in which a respective pressure piece is received. The pressure pieces face one another with one pressure piece having a projection that fits in a bore of the other pressure piece. Within at least a portion of the bore a plurality of spring elements are co-axially located on the projection between the pressure pieces biasing the pressure pieces and their respective valve plates apart. The plurality of spring elements may be cup plate springs, with a first group having a spring force that is less than a spring force of a second group, and a spring deflection that is greater than a plate spring deflection of the second group.
F16K 3/14 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing facesPackings therefor with wedge-shaped arrangements of sealing faces with special arrangements for separating the sealing faces or for pressing them together
F16K 27/04 - Construction of housingsUse of materials therefor of sliding valves
F16K 3/02 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing facesPackings therefor
The subject of the present invention is a wastewater-lifting system (1) which is equipped with at least one bulky-material-collecting vessel (2) for wastewater which is guided therethrough and loaded with bulky materials, also with a liquid-collecting vessel (3) for the wastewater which is freed from bulky materials and precleaned in the bulky-material-collecting vessel (2), and with a wastewater shaft (8) for accommodating the bulky-material-collecting vessel (2) and the liquid-collecting vessel (3). The liquid-collecting vessel (3) and the wastewater shaft (8) have at least one common wall surface (9, 10). According to the invention, the liquid-collecting vessel (3) defines a closed-off space with only a partially covered base surface (9) in the wastewater shaft (8) and is equipped for this purpose with at least one wall surface (11, 12) independent of the wastewater shaft (8).
The present invention relates to a method for setting up a wastewater pumping station in a wastewater shaft (1). In this context, at least one solids-collecting tank (2), for wastewater channelled through the same and loaded with solids, a liquids-collecting tank (7), for the wastewater which has been freed of solids and pre-purified in the solids-collecting tank (2), and a pump (5), which is assigned to the solids-collecting tank (2) and is intended for emptying the liquids-collecting tank (7) via the solids-collecting tank (2), are produced as separate subassemblies. According to the invention, at least the solids-collecting tank (2) and the pump (5) are prefabricated in the form of a structural unit (2, 4, 5, 6, 8). Moreover, the relevant structural unit (2, 4, 5, 6, 8) is combined with the already on-site liquids-collecting tank (7) during installation in the likewise already on-site wastewater shaft (1).
The invention relates to a method for treating a liquid. A feed stream (1) is separated into a permeate stream (4) and a retentate stream (5) by means of a membrane arrangement (2). At least a portion of the retentate stream (5) is discharged from the membrane arrangement (2) via a displacer arrangement (8) as a defined displacer volume. The feed stream (1) is divided into a portion (6) that is fed to the membrane arrangement (2) via a displacer arrangement (7) as a defined displacer volume and into a portion (9) that is fed to the membrane arrangement (2) by means of a conveying unit (10). The yield is varied by changing the ratio of the speed of the conveying unit (10) to the speed of the displacer arrangement (7).
F04B 1/20 - Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
F04B 1/22 - Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block having two or more sets of cylinders or pistons
Sealing arrangement, in particular a mechanical seal, wherein the sealing arrangement comprises a first rotating ring (1) and a second fixed ring (2) which are pressed against one another by means of a force, wherein a sealing surface (3) is formed between the first and the second ring (1, 2), wherein a cooling device is provided on the second fixed ring (2), wherein the cooling device has a first region for absorbing heat (4), which is in direct contact with the second ring (2), and a second region for dissipating heat (5), and also spring elements (6) with two transfer points (7) which permanently press the heat absorber (4) against the second ring (2).
The invention relates to a method for conditioning a liquid. In at least one first membrane unit (3), a feed flow (2) is separated into a permeate flow (5) and a retentate flow (6). According to the invention, at least part of the retentate flow (6) and part of the feed flow (2) flow through a structural unit. In said structural unit, the retentate flow (6) moves pistons (20) in cylinders (19) of a first drum (18). The rotation of the first drum (18) is transmitted to a second drum (30) by means of a shaft arrangement (26). The second drum (30) moves pistons (32) in cylinders (31) to deliver the feed flow (2).
F04B 1/22 - Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block having two or more sets of cylinders or pistons
The invention relates to a wastewater lifting station, which has at least one solids collection tank (3), having at least one screen (6) for wastewater that is to be guided therethrough and contains solids, said screen being arranged in the interior of said tank. The screen (6) divides the solids collection tank (3) into a region containing solids (3a) and a region free of solids (3b). Moreover, the screen (6) is connected in a pivotable manner by means of at least one hinge (12) to a flange (10) of the solids collection tank (3). The screen (6) is formed in the edge region (6a) thereof away from the hinge as a rake having holes (13) that are open on one side in the screen plane. The wastewater containing solids flows through a feed (1) into the collection tank, is filtered through the screen (6), and the wastewater that is free of solids is collected in a tank downstream. When the wastewater lifting station pumps, the wastewater that is free of solids is pumped by a pump (5) in counterflow through the screen (6) into a pressurised line (18), the feed (1) being shut off by a check valve (2). The screen (6) is back-flushed in the process. Reliable cleaning of the screen (6), even of fibres, is achieved during pumping owing the rake shape of the screen (6).
A rotor for an electrical machine, in particular synchronous reluctance machine, is provided. The rotor is formed as a cylindrical structure having a magnetically soft element formed with an even number of salient magnetic poles openings for forming magnetic flux barriers. The openings are at least partially filled with a diamagnetic and/or paramagnetic medium and the diamagnetic and/or paramagnetic medium may axially and tangentially fix the magnetically soft element relative to the rotor. A method for producing such a rotor and apparatus using the rotor, including a reluctance motor, in particular a synchronous reluctance motor, that uses the rotor are provided.
H02K 1/02 - Details of the magnetic circuit characterised by the magnetic material
H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
H02K 19/06 - Motors having windings on the stator and a variable-reluctance soft-iron rotor without windings, e.g. inductor motors
H02K 19/10 - Synchronous motors for multi-phase current
H02K 15/12 - Impregnating, moulding insulation, heating or drying of windings, stators, rotors or machines
71.
FLUID-CONDUCTING SYSTEM WITH CATHODIC CORROSION PROTECTION
The invention relates to a fluid-conducting system with cathodic corrosion protection, having at least one device (1, 101) influencing a flow rate and/or acting upon said flow rate, in particular a pump and/or armature having at least one connection device (7, 8, 107, 108), and with at least one device (10, 12, 110, 112) guiding the flow rate, in particular a pipe, with connection means. According to the invention, the fluid-conducting system comprises annular anodes (13, 14, 113, 114), an anode (13, 14, 113, 114) being arranged between the first (7, 107) and a second connection device (8, 108) and/or between a first connection device (7, 107) and connecting means (9, 109) and/or between a second connection device (8, 108) and connection means (11, 111), said anodes (13, 14, 113, 114) being electrically connected by means of lines (24, 25) comprising one or several conductors, to a monitoring device (19) and the internal diameter (dA) of the anodes (13, 14, 113, 114) being equal to the internal diameter (dR) of the device (10, 12, 110, 112) guiding the flow rate and arranged on the respective anode (13, 14, 113, 114). The invention also relates to a device influencing a flow rate and/or acting upon said flow rate, in particular a pump arrangement or armature arrangement for a fluid-conducting system with cathodic corrosion protection.
F04D 1/00 - Radial-flow pumps, e.g. centrifugal pumpsHelico-centrifugal pumps
F16L 58/18 - Protection of pipes or pipe fittings against corrosion or incrustation specially adapted for pipe fittings
F16K 1/00 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
The invention relates to a pump arrangement (1), in particular a magnetic coupling pump arrangement, comprising an interior (11) formed by a pump housing (2) of the pump arrangement (1), a split case (10) which hermetically seals a chamber (19) surrounded by the split case from the interior (11) formed by the pump housing (2), an impeller shaft (20) which can be driven in a rotatable manner about a rotational axis (A), an impeller (23) which is arranged at one end of the impeller shaft (20), an inner rotor (24) which is arranged at the other end of the impeller shaft (20), and an outer rotor (38) which interacts with the inner rotor (24). According to the invention, the pump arrangement (1) has an adapter element (39) which connects the split case (10) to the pump housing (2) or to a component paired with the pump housing (2), in particular a housing cover (4), said adapter element comprising a mounting flange (40) which rests against a support surface (15) of the pump housing (2), in particular of the housing cover (4), on the face near the interior (11).
The invention relates to a pump arrangement, more particularly a magnetic clutch pump arrangement, comprising an inner chamber (11) formed by a pump housing (2) in the pump arrangement (1); a containment shell (10) which seals an enclosed chamber (12) hermetically with respect to the inner chamber (11) formed by the pump housing; an impeller shaft (13) which is mounted in a plain bearing arrangement (19) and can be driven in rotation about an axis of rotation (A); an impeller (16) mounted on one end of the impeller shaft (13); a first bearing sleeve (26) connected to the impeller shaft (13) for conjoint rotation therewith; a second bearing sleeve (38) connected to the impeller shaft (13) for conjoint rotation therewith; a first bearing bush (27) which co-operates with the first bearing sleeve (26) via a radial bearing surface and is connected to the pump housing (2) or to a component (41) secured to the pump housing (2) for conjoint rotation therewith; a second bearing bush (39) which co-operates with the second bearing sleeve (38) via a radial bearing surface and is connected to the pump housing (2) or to a component (41) secured to the pump housing (2) for conjoint rotation therewith; and a retainer ring (31) mounted between the first and second bearing sleeves. According to the invention the retainer ring (31) has, in the end surface facing the first bearing bush (27), a first annular groove (32) which receives a first axial bearing ring (33), and, in the end surface facing the second bearing bush (39), a second annular groove (34) which receives a second axial bearing ring (35).
The invention relates to a pump arrangement, more particularly a magnetic clutch pump arrangement, comprising an inner chamber (11) formed by a pump housing (2) in the pump arrangement (1); a containment shell (10) which hermetically seals an enclosed chamber (12) with respect to the inner chamber (11) formed by the pump housing; an impeller shaft (13) that can be driven in rotation about an axis of rotation (A); an impeller (16) mounted on one end of the impeller shaft (13); an inner rotor (17) mounted on the other end of the impeller shaft (13); an auxiliary impeller (20) mounted in the chamber (12); and an outer rotor (26) which co-operates with the inner rotor (17). According to the invention the auxiliary impeller (20) is secured to the inner rotor (17).
The invention relates to a pump arrangement, more particularly a magnetic clutch pump arrangement, comprising an inner chamber (11) formed by a pump housing (2) in the pump arrangement (1); a containment shell (10) with a central longitudinal axis (B) which hermetically seals an enclosed chamber (12) with respect to the inner chamber (11) formed by the pump housing (2); an impeller shaft (13) that can be driven in rotation about an axis of rotation (A); an impeller (16) mounted on one end of the impeller shaft (13); an inner rotor (17) mounted on the other end of the impeller shaft (13); and an outer rotor (24) which is mounted on a drive shaft (20) and co-operates with the inner rotor (17); wherein the containment shell (10) has a base (26) with at least one dimple (31) extending into the chamber (12). According to the invention the at least one dimple (31) is radially spaced from the central longitudinal axis (B) of the containment shell (10). The invention also relates to a method for producing a containment shell for a pump arrangement, more particularly a magnetic clutch pump arrangement, wherein the containment shell (10) is produced by a deep drawing process or a casting process, and wherein at least one dimple (31) which is radially spaced from the central longitudinal axis (B) of the containment shell (10) is created in the base (26).
The invention relates to a pump arrangement (1), particularly a magnetic drive pump comprising: an interior (11) formed by a pump casing (2) of the pump arrangement (1); a can (10), which hermetically seals off a chamber (12) enclosed by the can against the interior (11) formed by the pump casing (2); an impeller shaft (13) rotatably drivable about an axis of rotation (A); an impeller (16) arranged at one end of the impeller shaft (13); an internal rotor (17) arranged at the other end of the impeller shaft (13); a drive motor (9); a drive shaft (20) rotationally drivable by the drive motor (9) about the axis of rotation (A); and an external rotor (22) arranged on the drive shaft (20) and cooperating with the internal rotor (17). The external rotor (22) has a hub (23) having a hub interior surface (28) formed by a through-bore (27), in which hub interior surface an axial groove (29) is formed, which extends parallel to the axis of rotation (A) and cooperates with a feather key (33) inserted into a key groove (32) of the drive shaft (20). According to the invention at least one radially circumferential first groove (30) and at least one radially circumferential second groove (31) are formed in the hub interior surface (28), a tolerance ring (34, 35) being arranged at least in two of the grooves (34, 35).
F04D 13/06 - Units comprising pumps and their driving means the pump being electrically driven
F04D 29/044 - Arrangements for joining or assembling shafts
F16D 3/64 - Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members comprising elastic elements arranged between substantially-radial walls of both coupling parts
The invention relates to a pump arrangement (1), more particularly a magnetic clutch pump arrangement, comprising an inner chamber (11) formed by a pump housing (2) in the pump arrangement (1); a containment shell (10) which hermetically seals an enclosed chamber (12) with respect to the inner chamber (11) formed by the pump housing (2); an impeller shaft (13) that can be driven in rotation about an axis of rotation (A); an impeller (16) mounted on one end of the impeller shaft (13); an inner rotor (17) mounted on the other end of the impeller shaft (13); a drive motor (9); a drive shaft (20) that can be driven in rotation about the axis of rotation (A) by the drive motor (9); and an outer rotor (22) which is mounted on the drive shaft (20) and co-operates with the inner rotor (17); wherein the outer rotor (22) has a hub (23) and a first support element (28). According to the invention the outer rotor (22) has a hollow cylindrical portion (25) between the hub (23) and the first support element (28).
The invention discloses an angle seat geometry for a valve seat (3) in a fitting housing (1) having an inlet and an outlet, wherein provision is made of a metallic closure part (2) of conical configuration on the outer contour thereof, wherein the valve seat is formed in the metallic housing as an intersection of three cones, wherein two cones are positioned in a through opening in the fitting housing in such a way that the valve seat is in the form of a marginal seat, and wherein the components of the seat are produced by means of laser melting.
F16K 1/08 - Special arrangements for improving the flow, e.g. special shape of passages or casings in which the spindle is perpendicular to the general direction of flow
The invention relates to a method for starting a variable-speed electric motor, wherein upon detection of locking of the motor shaft a positive torque is applied to the motor shaft, and wherein the positive torque is continuously modified with different frequencies to overcome the locking.
The invention relates to a method for securing a rotor to a machine shaft of an electric machine, in particular a reluctance or synchronous reluctance machine. Individual rotor sheets are stacked on the machine shaft to form a stack of sheets and then, the stack of sheets is twisted for a form-fitting compression between the rotor pack and the machine shaft. The invention also relates to a rotor for a machine shaft, in particular for a reluctance or synchronous reluctance machine, which can be secured, according to the claimed method, to the machine shaft. The rotor comprises a shaft bore for receiving the machine shaft and several positioning rods for offsetting the rotor, said rods extending in the sheets, and said positioning rods are arranged on a circular line which extends eccentrically offset to the shaft bore.
H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
37 - Construction and mining; installation and repair services
Goods & Services
Pumps included in this class; units comprising pumps and
pump motors; regulating and control apparatus, included in
this class; fluid technology installations for the
transport, control and/or treatment and/or decanting of
fluid media; pump installations, in particular consisting of
pumps and motors for drainage, water supply, water disposal
and water treatment purposes; spare parts for pumps, motors
and engines, included in this class. Electric and electronic switching, measuring, control,
regulating, testing, checking (supervision), diagnosis,
alarm, monitoring and display apparatus, including software
and bus systems therefor; electric and electronic equipment
and installations for remote control, remote operation, data
storage and data interchange; electric cables and wires;
electronic converters; electronic apparatus and
installations for data and signal transmission; electronic
components and modules; modems; simulation software;
software for monitoring; computer hardware; computer
software; fire-extinguishing and sprinkler installations;
all the aforesaid goods included in this class; actuators
with electronic controls. Installations and apparatus for water supply, water
treatment, heating, refrigerating, air conditioning,
ventilating and steam generating purposes, included in this
class; installations for sanitary purposes; purification
installations for sewage; taps and regulating fittings for
water pipes or gas pipes. Installation, repair and maintenance of pumps, fittings,
motors and engines and regulating and control apparatus
therefor, and units and installations constructed from the
aforesaid goods.
An energy generating unit for generating electric energy from water power is provided. At least one turbine system is installed in a conventional standard container in a channel which rungs in the standard container. The channel is arranged in the flow direction of a surrounding body of water. A fishway is provided on or in the standard container.
E02B 8/08 - Fish passesPassages for rafts or boats
E02B 9/00 - Water-power plantsLayout, construction or equipment, methods of, or apparatus for, making same
F03B 3/04 - Machines or engines of reaction typeParts or details peculiar thereto with substantially axial flow throughout rotors, e.g. propeller turbines
The invention relates to a pump arrangement, in particular a centrifugal pump, in particular a main coolant pump for power stations, comprising a pump housing (2), which defines an interior (3) with an inlet opening (4) for aspirating a conveying medium and with an outlet opening (5) for expelling the conveying medium and which also defines a chamber (7) that is connected to the interior (3), a seal water system (22), which has a first conduit system (29) in order to supply seal water into the chamber (7) defined by the pump housing (2), a second conduit system (32) for evacuating a controlled leakage flow from the chamber (7) defined by the pump housing (2), and a protective valve (35), which is arranged in the second conduit system (32) in order to block the leakage flow that is evacuated from the chamber (7). The invention further relates to a protective valve (35) and to the use of a protective valve (35) in a pump arrangement (1).
The invention relates to a rotor for a reluctance machine comprising a cylindrical soft-magnetic element, wherein the soft-magnetic element has cutouts for forming magnetic flux barriers, and all or some of the flux barriers are divided by one or more webs, wherein the profile of the individual webs forms a closed line, which divides the rotor in the radial direciton into an inner and an outer rotor region.
A method of synchronizing a synchronous reluctance electric machine wherein the machine has no speed and/or residual magnetization voltage sensor and comprises power terminals and rotating masses whose mechanical rotation frequency (fΜ) is subjected to speed transients caused by power cut-off conditions. The method comprises at least one step of a) applying a control voltage (Vc) with predetermined amplitude (vc) and duration (Tc) to the terminals after the transients and one step of b) detecting the electric current induced (Ii) by the control voltage (Vc), the current induced (Ii) by the voltage (Vc) having a harmonic spectrum (S) variable according to the frequency differential between the frequency of the control voltage (fc) and the mechanical rotation frequency (fΜ) of the rotating masses, to restore power and synchronous rotation control of the machine (E).
An immersion pump is provided, the pump having an integral housing with an inlet opening on an intake side, an outlet opening on a delivery side, a passage for electrical lines, an electronic unit for processing power and optionally information signals, an electric motor, a pressure chamber and a pump unit. The electronic unit, the electric motor, the pressure chamber and the pump unit may be pre-assembled to an insert, with the pre-assembled insert being supported on one end of the housing. An axial clamping and/or fastening system, in particular a tapered locking arrangement, is provided on the opposite end of the housing.
F04C 13/00 - Adaptations of machines or pumps for special use, e.g. for extremely high pressures
F04C 2/16 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
F04D 13/08 - Units comprising pumps and their driving means the pump being electrically driven for submerged use
F04C 2/107 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
F04D 13/10 - Units comprising pumps and their driving means the pump being electrically driven for submerged use adapted for use in mining bore holes
F04D 29/62 - MountingAssemblingDisassembling of radial or helico-centrifugal pumps
F04D 29/64 - MountingAssemblingDisassembling of axial pumps
E21B 23/01 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for anchoring the tools or the like
E21B 23/02 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for locking the tools or the like in landing nipples or in recesses between adjacent sections of tubing
The invention relates to a sealing element as a split ring comprising a self-regulating throttle gap (6) for sealing a rotating component (1)against a stationary housing (2), wherein in the gap between the rotating component and the housing a split ring (7) is provided, wherein a ring space (4) filled with medium is formed on the stationary housing on a surface that is delimiting the gap in a radial manner, wherein the ring space is oriented such that the ring space is concentric in relation to the rotating component, wherein the ring space is enclosed by a split ring (7) that is designed in a U-shape, wherein between the U-shaped split ring (7) and the housing (2) an axial throttle gap and between the split ring (7) and the rotating component a radial gap which is filled with a medium and through which a medium flows, is provided.
The invention relates to a line control valve, comprising a housing (1), in which a shut-off body (9) is arranged. The line control valve has a device for measuring flow rate. The device comprises a first ultrasonic sensor (14) and at least one additional ultrasonic sensor (15), which are arranged on the housing (1).
F16K 1/00 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
1) is smaller than 0°. The blade angle (β) increases in a first section (9) until a value of 0° is reached. In a second section (10), another increase occurs until a maximum value is reached. In a third section (11), the blade angle (β) decreases again.
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
Goods & Services
electric cables and wires; electronic converters; electronic apparatus and installations for data and signal transmission; electronic components and modules for use in leak, flow and functional testing; modems; engineering simulation software; software for monitoring processes in industrial plants; computer software for configuring, quoting and ordering products, namely, pumps and motors; computer hardware; fire-extinguishing and sprinkler installations for fire protection; electric actuators with electronic controls Water supply apparatus, namely, water purifying units for water for domestic, commercial or industrial use; water treatment apparatus, namely, clarification and thickening machines for use in treatment of liquids in the nature of water, waste water and industrial water; industrial ventilating fans and steam generating installations; installations for sanitary purposes, namely, sewage treatment plants; purification installations for sewage; taps and regulating accessories for water pipes or gas pipes
The invention relates to an apparatus and a method for determining the filling level of a liquid in a container (4). The apparatus comprises at least one element (1, 2) which transmits and/or receives acoustic signals. The acoustic signals propagate along a surface of a solid (3). The solid (3) is arranged in such a manner that at least one part of a surface of the solid (3) can be wetted by the liquid. The solid (3) has, at different container heights, regions (5) which reflect the acoustic signals.
G01F 23/28 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
The invention relates to a gate valve with a housing (1), two seat rings (20) arranged in the housing (1), and two slide plates (12) arranged between the seat rings (20), which can be brought into contact with the two seat rings (20) via an actuating device (7). According to the invention, each slide plate (12) has, on the side facing the respective other slide plate (12), a depression (28), in which a respective pressure pad (22a, 22b) is arranged, wherein each pressure pad (22a, 22b) has a recess (34, 37) on the side facing the respective other pressure pad, the recesses (34, 37) together forming a chamber (40) in which a spring assembly (23) is accommodated, comprising a plurality of plate springs (41) with a respective first spring force and a first spring deflection and a plurality of plate springs (42) with a respective second spring force and a second spring deflection, wherein the first spring force is greater than the second spring force and the first spring deflection is less than the second spring deflection.
F16K 3/14 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing facesPackings therefor with wedge-shaped arrangements of sealing faces with special arrangements for separating the sealing faces or for pressing them together
The present invention relates to an asynchronous motor for an underwater pump, having a stator and a rotor which is in the form of a squirrel-cage rotor, wherein the air gap between the rotor (12) and the stator (11) is at least partially filled with a ferrofluid (20). A further partial aspect of the invention relates to an underwater pump having an asynchronous motor of this kind for driving the pump.
The present invention relates to a synchronous reluctance motor for an underwater pump having a stator and a rotor which comprises a fluid barrier section for forming one or more magnetic pole pairs, wherein the airgap between the rotor (12) and the stator (11) is at least partially filled with a ferrofluid (20). A further partial aspect of the invention relates to an underwater pump with such a synchronous reluctance motor for driving the pump.
H02K 5/167 - Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings
H02K 7/09 - Structural association with bearings with magnetic bearings
95.
Method and control device for variable rotational speed control of a displacement pump unit and displacement pump arrangement
A displacement pump arrangement, method for operating the displacement pump arrangement and a control device for controlling the displacement pump arrangement provide rotational-speed-variable control of an expeller pump unit for feeding a fluid. The arrangement includes an expeller pump and a drive, the drive being composed of an electric drive motor and a frequency converter, and a control device. The control device controls a state value such as a final pressure of the expeller pump a setpoint value. The control device detects state values of a control variable are supplied by the drive, in particular relating to the position, rotational speed and torque of the drive motor, and adjusts the displacement pump output to reach the setpoint value without using sensors.
F04D 15/00 - Control, e.g. regulation, of pumps, pumping installations, or systems
F04B 49/12 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups by varying the length of stroke of the working members
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
37 - Construction and mining; installation and repair services
Goods & Services
Pumps, In class 7; Units composed of pumps and pump motors; Actuators with electronic controls; Regulating and control apparatus, included in class 7; Fluid technology installations for the transport, control and/or treatment and/or decanting of fluid media; Pump installations, in particular consisting of pumps and motors for drainage, water supply, water disposal and water treatment purposes; Replacement parts for pumps and pump motors, included in class 7. Electric and electronic switching, measuring, control, regulating, testing, checking (supervision), diagnosis, alarm, monitoring and display apparatus, including software and bus systems therefor; Electric and electronic equipment and installations for remote control, remote operation, data storage and data interchange; Electric cables and wires; Electronic coverters; Electronic apparatus and installations for data and signal transmission; Electronic components and modules; Modems; Simulation software; Software for monitoring; Computer hardware; Computer software; Fire-extinguishing and sprinkler installations; All the aforesaid goods (included in class 9). Installations and apparatus for water supply, water treatment, heating, refrigerating, air conditioning, ventilating and steam generating purposes, included in class 11; Installations for sanitary purposes; Purification installations for sewage; Taps and regulating fittings for water pipes or gas pipes. Installation, repair and maintenance of pumps, fittings, motors and engines and regulating and control apparatus therefor, and units and installations constructed from the aforesaid goods.
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
37 - Construction and mining; installation and repair services
Goods & Services
Pumps included in class 7; Motors, other than for land vehicles; Units comprising pumps and motors; Actuators with electronic controls; Regulating and control apparatus, included in class 7; Fluid technology installations for the transport, control and/or treatment and/or decanting of fluid media; Pump installations, in particular consisting of pumps and motors for drainage, water supply, water disposal and water treatment purposes; Spare parts for pumps, motors and engines, included in class 7. Electric and electronic switching, measuring, control, regulating, testing, checking (supervision), diagnosis, alarm, monitoring and display apparatus, including software and bus systems therefor; Electric and electronic equipment and installations for remote control, remote operation, data storage and data interchange; Electric cables and wires; Electronic coverters; Electronic apparatus and installations for data and signal transmission; Electronic components and modules; Modems; Simulation software; Software for monitoring; Computer hardware; Computer software; Fire-extinguishing and sprinkler installations; All the aforesaid goods (included in class 9). Installations and apparatus for water supply, water treatment, heating, refrigerating, air conditioning, ventilating and steam generating purposes, included in class 11; Installations for sanitary purposes; Purification installations for sewage; Taps and regulating fittings for water pipes or gas pipes. Installation, repair and maintenance of pumps, fittings, motors and engines and regulating and control apparatus therefor, and units and installations constructed from the aforesaid goods.
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
37 - Construction and mining; installation and repair services
Goods & Services
Pumps included in class 7; Units comprising pumps and pump motors; Actuators with electronic controls; Regulating and control apparatus, included in class 7; Fluid technology installations for the transport, control and/or treatment and/or decanting of fluid media; Pump installations, in particular consisting of pumps and motors for drainage, water supply, water disposal and water treatment purposes; Spare parts for pumps, pump motors and pump engines, included in class 7. Electric and electronic switching, measuring, control, regulating, testing, checking (supervision), diagnosis, alarm, monitoring and display apparatus, including software and bus systems therefor; Electric and electronic equipment and installations for remote control, remote operation, data storage and data interchange; Electric cables and wires; Electronic coverters; Electronic apparatus and installations for data and signal transmission; Electronic components and modules; Modems; Simulation software; Software for monitoring; Computer hardware; Computer software; Fire-extinguishing and sprinkler installations; All the aforesaid goods (included in class 9). Installations and apparatus for water supply, water treatment, heating, refrigerating, air conditioning, ventilating and steam generating purposes, included in class 11; Installations for sanitary purposes; Purification installations for sewage; Taps and regulating fittings for water pipes or gas pipes. Installation, repair and maintenance of pumps, fittings, motors and engines and regulating and control apparatus therefor, and units and installations constructed from the aforesaid goods.
A valve wherein the static sealing section consists of two flexible side lips (28, 28'), so as to be able to move towards each other and together delimiting a space for receiving at least two strands (15) made of flexible material.
The invention relates to a rotor for a synchronous machine, in particular a reluctance machine, comprising a cylindrically structured, magnetically soft element, wherein the magnetically soft element has openings for forming magnetic flux barriers, which form an even number of salient magnetic poles, wherein at least one opening is at least partially filled with a diamagnetic or paramagnetic medium. The invention also relates to a method for producing such a rotor and to the use of a rotor. The invention further relates to a reluctance motor, in particular a synchronous reluctance motor, that uses the rotor according to the invention.
H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
H02K 19/06 - Motors having windings on the stator and a variable-reluctance soft-iron rotor without windings, e.g. inductor motors
H02K 19/10 - Synchronous motors for multi-phase current
H02K 15/12 - Impregnating, moulding insulation, heating or drying of windings, stators, rotors or machines
