EP4229300A1 - Coupling unit with thermal separation effect - Google Patents
Coupling unit with thermal separation effectInfo
- Publication number
- EP4229300A1 EP4229300A1 EP21793905.7A EP21793905A EP4229300A1 EP 4229300 A1 EP4229300 A1 EP 4229300A1 EP 21793905 A EP21793905 A EP 21793905A EP 4229300 A1 EP4229300 A1 EP 4229300A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lantern
- pump
- less
- arrangement according
- pump arrangement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/021—Units comprising pumps and their driving means containing a coupling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
- F04D29/5893—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps heat insulation or conduction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
- F04D7/06—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 metals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/20—Heat transfer, e.g. cooling
- F05D2260/231—Preventing heat transfer
Definitions
- the invention relates to a pump arrangement with a lantern that connects a pump housing and a motor housing to one another.
- Such a pump arrangement can be a centrifugal pump arrangement, for example.
- Centrifugal pumps are based on the principle of energy transfer to a fluid through a change in swirl as a result of a torque that is triggered by a uniformly rotating impeller on the fluid flowing through it.
- Centrifugal pumps are mostly driven by electric motors.
- piston engines are also used as drives in centrifugal pump technology.
- Electric motors generate a uniform torque.
- the electric motor is an electromechanical energy converter that converts electrical energy into mechanical energy.
- DC motors, AC motors or three-phase motors are used. As a rule, the electrical energy is converted into a rotational movement.
- the electric motor driving a centrifugal pump is usually connected to the pump at a certain distance via a lantern.
- the motor drive shaft occurs in the middle through openings in the two flanges or covers for attachment to the motor and through the pump housing.
- Lanterns are commonly made by casting.
- the object of the invention is to provide a lantern as a connecting element between the pump housing and the drive motor.
- This connecting element should conduct the heat that emanates from the pump housing when pumping hot fluids towards the motor as little as possible.
- the connecting element should be characterized by a compact design. The replacement of spare parts should be favored by the design of the connecting element.
- the connecting element should be able to be implemented simply and inexpensively.
- At least one thermally conductive barrier is arranged within the lantern.
- a thermally conductive barrier is particularly advantageous for thermally sealing a pump housing through which a hot fluid flows from the drive motor decouple. In particular, this protects the motor and the parts installed in it and enables the pump to be operated in the desired operating range.
- At least one thermally conductive barrier is arranged in all central axial sections. This achieves thermal decoupling of the pump housing from the motor housing, since the heat cannot be conducted via a direct axial connection between the housings.
- Such a thermally conductive barrier is advantageously designed as a material recess. Air, which is known to be a particularly good insulator and thus represents a barrier to heat conduction, usually occupies the space of a material recess.
- a thermally conductive barrier could also be in the form of a particularly poorly thermally conductive material, such as a material based on ceramic material.
- the lantern connects the pump housing and the motor housing directly. In principle, no additional component is required to establish this connection. A reduction in the number of components is usually advantageous for reducing the manufacturing costs.
- the lantern is preferably designed in the shape of a cylinder and/or a trumpet funnel. This spatial configuration is particularly advantageous in order to achieve additional cooling of the lantern by the flow of cooling air generated by the motor fan.
- the lantern can also be designed in the shape of a cone and/or cuboid.
- the lantern is formed in one piece with the motor-side pressure cover of the pump housing and/or in one piece with the pump-side motor cover.
- the lantern can thus be made particularly compact and enables a pump arrangement with dimensions that can also be used at installation sites with limited space.
- the thermal conductivity of the lantern material is less than 400 W/m K, preferably less than 300 W/m K, in particular less than 250 W/m K, and/or more than 10 W/m K, preferably more than 20 W /m K, in particular more than 30 W/m K.
- the lantern is preferably made of gray cast iron or aluminum using a casting process.
- the thermal conductivity of the thermally conductive barrier is less than 20 W/m K, preferably less than 15 W/m K, in particular less than 10 W/m K, and/or more than 0.002 W/m K, preferably more than 0.05 W /m K, in particular more than 0.1 W/m K.
- the width of the material cutout is more than 0.5 mm, preferably more than 1 mm, in particular more than 1.5 mm, and/or less than 30 mm, preferably less than 25 mm, in particular less than 20 mm.
- the material thickness of the lantern is advantageously more than 1 mm, preferably more than 2 mm, in particular more than 3 mm, and/or less than 14 mm, preferably less than 12 mm, in particular less than 10 mm.
- the lantern according to the invention is characterized by a slim design with a manageable use of material and at the same time a stable and vibration-resistant design.
- the lantern is designed as a bearing support on the pump side and/or on the motor side. This leads to a particularly compact design of the lantern and at the same time to a reduction in the assembly effort due to the reduction in the number of parts.
- the lantern according to the invention is characterized by a compact, axial design, in which the entire heat conduction route is lengthened by inserting material recesses.
- FIG. 2 is a perspective view of a lantern
- FIG. 4 is a perspective view of a third lantern design
- 5 is a perspective view of another lantern design.
- FIG. 1 shows a pump arrangement with a lantern 1 which connects a pump housing 3 and a motor housing 7 to one another.
- the centrifugal pump shown in the exemplary embodiment is used to convey fluids that can have high temperatures under certain circumstances.
- the fluid enters the pump housing 3 of the centrifugal pump through a suction mouth 2 .
- the impeller 4 is arranged within the pump housing 3 .
- the impeller 4 transfers kinetic energy to the fluid, which leaves the centrifugal pump via the pressure port, which is not shown in this figure.
- the space filled with fluid and the impeller 4 is delimited by a pump housing 3 and a housing cover 5 .
- the impeller 4 is connected in a torque-proof manner to a shaft 9 which drives the impeller 4 by means of a motor arrangement 13 .
- the motor arrangement 13 comprises a rotor 10, a stator 8, the shaft 9, a motor cover 6 on the pump side and a motor housing 7.
- a bearing carrier, which carries a bearing 11, is arranged in the motor cover 6.
- the representation of the lantern 1 in FIG. 1 clearly shows that a thermally conductive barrier 12 is implemented between the pump housing 3 and the motor housing 7 in all central axial sections.
- a thermally conductive barrier 12 is implemented between the pump housing 3 and the motor housing 7 in all central axial sections.
- Such a heat-conducting beam 12 is designed in such a way that there is no direct axial connection between the housing parts, which in turn thermally decouples the housings 3 and 7 to a greater extent. On this beneficial Way, the distance of the heat conduction is extended enormously radially, without increasing the axial length of the lantern 1.
- the connecting plate 15 for connection to the motor cover 6, not shown here, is connected with connecting webs 14 to the connecting plate 16 for connection to the housing cover 5 of the pump housing 3, also not shown.
- the lantern 1 has a plurality of thermally conductive barriers 12 which, in this exemplary embodiment, are in the form of material recesses. In an alternative variant, the thermally conductive barrier could also be designed as a poorly thermally conductive material.
- the connecting webs 14 prevent reaching into the rotating shaft 9.
- the structural design of the connecting webs 14 results in a lantern 1 which provides an extremely long circumferential path for heat conduction in the shortest possible axial installation space.
- the cooling air flow generated by the engine fan, not shown, which flows over the cooling fins of the engine housing 7 in the direction of the lantern 1, can, in addition to the heat conduction barrier 12, dissipate the heat conducted from the connecting webs 14 from the pump housing 3, so that the engine cover 6 receives an extremely small amount of heat. Due to the particularly advantageous construction of the lantern 1, the pump housing 3 and the motor arrangement 13 are more thermally decoupled.
- connection plate 15 for connection to the motor cover 6, not shown here, is connected with connecting webs 14 to the connection plate 16 for connection to the housing cover 5 of the pump housing 3, also not shown.
- the lantern 1 has a plurality of thermally conductive barriers 12 which, in this exemplary embodiment, are in the form of material recesses.
- the connecting webs 14 are designed as a cylindrical component, which are designed in one piece with the connecting plates 15 and 16 via four small connecting elements.
- the material recesses are each arranged between the small connecting elements and between the cylindrical component and the connecting plate 16 and the cylindrical component and the connecting plate 15 .
- this variant of the lantern 1 is the motor arrangement 13 is thermally decoupled from the pump housing 3 and at the same time the lantern 1 is designed to be particularly stable and resistant to vibration.
- Fig. 4 shows a perspective view of a third embodiment variant of the lantern 1 according to the invention.
- the connecting plate 15 for connection to the motor cover 6, not shown here, is connected with connecting webs 14 to the connecting plate 16 for connection to the housing cover 5, also not shown, of the pump housing 3.
- the lantern 1 has a large number of thermally conductive barriers 12, which in this exemplary embodiment are designed as material recesses.
- the lantern 1 of FIG. 4 corresponds to the lantern 1 of FIG. 3.
- the cylindrical component is additionally provided with further axially arranged thermally conductive barriers 12 in the form of material cutouts.
- the thermal conductivity of the lantern material is less than 400 W/m K, preferably less than 300 W/m K, in particular less than 250 W/m K, and/or more than 10 W/m K, preferably more than 20 W/m K, in particular more than 30 W/m K.
- the thermal conductivity of the thermally conductive barrier 12 is less than 20 W/m K, preferably less than 15 W/m K, in particular less than 10 W/m K, and/or more than 0.002 W / m K, preferably more than 0.05 W / m K, in particular more than 0.1 W / m K.
- the width of the thermally conductive barrier 12, which is designed as a material recess in this exemplary embodiment, is more than 0.5 mm, preferably more than 1 mm, in particular more than 1.5 mm, and/or less than 30 mm, preferably less than 25 mm , especially less than 20 mm.
- the material thickness of the lantern 1 is more than 1 mm, preferably more than 2 mm, in particular more than 3 mm, and/or less than 14 mm, preferably less than 12 mm, in particular less than 10 mm.
- Fig. 5 shows a perspective view of a lantern 1.
- the connecting plate 15 for connection to the motor cover 6, not shown here, has connecting webs 14 is connected via a hollow-cylindrical sleeve 17 and further connecting webs 14 to the connecting plate 16 for connection to the housing cover 5 of the pump housing 3, which is also not shown.
- the lantern 1 has a plurality of thermally conductive barriers 12 which, in this exemplary embodiment, are in the form of material recesses. In an alternative variant, the thermally conductive barrier could also be made of a poorly thermally conductive material.
- the connecting webs 14 and the hollow-cylindrical sleeve 17 prevent an engagement with the rotating shaft 9 and direct the forces from the motor housing 7 into the base of the pump, which act through the mass of the motor arrangement 13 .
- the hollow-cylindrical sleeve 17 is additionally reinforced by two formations 18 in the embodiment shown.
- the cuboid connecting plate 16 is designed with rounded corners, the connecting webs 14 each starting in the middle and extending radially inward in the manner of struts.
- the hollow-cylindrical sleeve 17 has additional heat-conducting barriers 12 in the form of material recesses, which lead to a longer heat conduction path and thereby almost thermally decouple the pump housing 3 and the motor housing 7 .
- the cooling air flow generated by the engine fan, not shown, which flows over the cooling fins of the engine housing 7 in the direction of the lantern 1, can, in addition to the thermally conductive barriers 12, dissipate the heat conducted from the connecting webs 14 from the pump housing 3, so that the engine cover 6 receives an extremely small amount of heat.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
Description
Beschreibung description
Laterne mit thermischer Trennwirkung Lantern with thermal break
Die Erfindung betrifft eine Pumpenanordnung mit einer Laterne, die ein Pumpengehäuse und ein Motorgehäuse miteinander verbindet. The invention relates to a pump arrangement with a lantern that connects a pump housing and a motor housing to one another.
Eine solche Pumpenanordnung kann beispielsweise eine Kreiselpumpenanordnung sein. Kreiselpumpen beruhen auf dem Wirkprinzip der Energieübertragung an ein Fluid durch Dralländerung infolge eines Drehmoments, das von einem gleichförmig rotierenden Laufrad auf das durch dieses strömende Fluid ausgelöst wird. Such a pump arrangement can be a centrifugal pump arrangement, for example. Centrifugal pumps are based on the principle of energy transfer to a fluid through a change in swirl as a result of a torque that is triggered by a uniformly rotating impeller on the fluid flowing through it.
Meistens werden Kreiselpumpen durch Elektromotoren angetrieben. Neben diesem elektrischen Antrieb werden in der Kreiselpumpentechnik auch Kolbenkraftmaschinen als Antrieb verwendet. Dabei erzeugen Elektromotoren ein gleichförmiges Drehmoment. Der Elektromotor ist ein elektromechanischer Energiewandler, der elektrische in mechanische Energie wandelt. Je nachdem, in welcher Form die elektrische Energie verfügbar ist, kommen Gleichstrommotoren, Wechselstrom- oder Drehstrommotoren zum Einsatz. In der Regel wird die elektrische Energie hierbei in eine Rotationsbewegung umgewandelt. Centrifugal pumps are mostly driven by electric motors. In addition to this electrical drive, piston engines are also used as drives in centrifugal pump technology. Electric motors generate a uniform torque. The electric motor is an electromechanical energy converter that converts electrical energy into mechanical energy. Depending on the form in which the electrical energy is available, DC motors, AC motors or three-phase motors are used. As a rule, the electrical energy is converted into a rotational movement.
Der eine Kreiselpumpe antreibende Elektromotor wird meist über eine Laterne in einem bestimmten Abstand mit der Pumpe verbunden. Die Motorantriebswelle tritt dabei mittig durch Öffnungen in den beiden Flanschen bzw. Deckeln zur Befestigung am Motor und am Pumpengehäuse hindurch. Laternen werden üblicherweise durch Gießen hergestellt. The electric motor driving a centrifugal pump is usually connected to the pump at a certain distance via a lantern. The motor drive shaft occurs in the middle through openings in the two flanges or covers for attachment to the motor and through the pump housing. Lanterns are commonly made by casting.
Eine solche Laterne und ein entsprechendes Herstellungsverfahren sind beispielsweise in der EP 1 038 611 A2 beschrieben. Die Art und die Anzahl der beschriebenen Verbindungsstege ermöglichen eine besonders stabile Ausführung einer Laterne. Such a lantern and a corresponding production method are described, for example, in EP 1 038 611 A2. The type and number of connecting webs described enable a particularly stable design of a lantern.
Bei Pumpenanordnungen, die zur Förderung von Fluiden mit hohen Temperaturen eingesetzt werden, kann es zu einem hohen Wärmeeintrag ausgehend vom Pumpengehäuse in Richtung Elektromotor kommen. Das kann zu mehreren Problemen am Elektromotor führen. Hohe Temperaturen reduzieren den Wirkungsgrad der Energieumwandlung. Die Bauteile des Motors, insbesondere die Wicklungen des Stators und des Rotors werden thermisch belastet, wodurch deren Lebensdauer verkürzt werden kann. Möglicherweise reduziert die Elektromotorregelung die Leistungsaufnahme sowie die Drehzahl, um eine Überhitzung des Elektromotors zu verhindern, wodurch die Pumpe nicht mehr im gewünschten Betriebsbereich arbeiten kann. In pump arrangements that are used to convey fluids at high temperatures, there can be a high level of heat input from the pump housing in the direction of the electric motor. This can lead to several problems with the electric motor. High temperatures reduce the efficiency of energy conversion. The components of the motor, in particular the windings of the stator and the rotor, are thermally stressed, which can shorten their service life. The electric motor control may reduce the power consumption and the speed to prevent the electric motor from overheating, which means that the pump can no longer work in the desired operating range.
Aufgabe der Erfindung ist es, eine Laterne als Verbindungselement zwischen Pumpengehäuse und Antriebsmotor bereitzustellen. Dieses Verbindungselement soll die Wärme, die beim Fördern von heißen Fluiden vom Pumpengehäuse ausgeht, möglichst geringfügig in Richtung Motor leiten. Weiterhin soll sich das Verbindungselement durch eine kompakte Bauform auszeichnen. Der Austausch von Ersatzteilen sollte durch die Konstruktion des Verbindungselements begünstigt sein. Das Verbindungselement sollte einfach und kostengünstig realisiert werden können. The object of the invention is to provide a lantern as a connecting element between the pump housing and the drive motor. This connecting element should conduct the heat that emanates from the pump housing when pumping hot fluids towards the motor as little as possible. Furthermore, the connecting element should be characterized by a compact design. The replacement of spare parts should be favored by the design of the connecting element. The connecting element should be able to be implemented simply and inexpensively.
Diese Aufgabe wird erfindungsgemäß durch eine Pumpenanordnung mit einer Laterne mit den Merkmalen des Anspruchs 1 gelöst. Bevorzugte Varianten sind den Unteransprüchen, der Beschreibung und den Zeichnungen zu entnehmen. According to the invention, this object is achieved by a pump arrangement with a lantern having the features of claim 1 . Preferred variants can be found in the dependent claims, the description and the drawings.
Gemäß der Erfindung ist innerhalb der Laterne mindestens eine Wärmeleitbarriere angeordnet. Eine solche Wärmeleitbarriere ist besonders vorteilhaft, um ein Pumpengehäuse, das von einem heißen Fluid durchströmt wird, vom Antriebsmotor thermisch zu entkoppeln. Dies schützt insbesondere den Motor sowie die darin verbauten Teile und realisiert den Betrieb der Pumpe im gewünschten Betriebsbereich. According to the invention, at least one thermally conductive barrier is arranged within the lantern. Such a thermally conductive barrier is particularly advantageous for thermally sealing a pump housing through which a hot fluid flows from the drive motor decouple. In particular, this protects the motor and the parts installed in it and enables the pump to be operated in the desired operating range.
Idealerweise ist in allen mittigen Axialschnitten mindestens eine Wärmeleitbarriere angeordnet. Dadurch ist eine thermische Entkopplung des Pumpengehäuses vom Motorgehäuse erreicht, da die Wärme nicht über eine direkte axiale Verbindung zwischen den Gehäusen geleitet werden kann. Ideally, at least one thermally conductive barrier is arranged in all central axial sections. This achieves thermal decoupling of the pump housing from the motor housing, since the heat cannot be conducted via a direct axial connection between the housings.
Vorteilhafterweise ist eine solche Wärmeleitbarriere als Materialaussparung ausgeführt. Den Raum einer Materialaussparung nimmt in aller Regel Luft ein, die als besonders guter Isolator bekannt ist und somit eine Barriere für die Wärmeleitung darstellt. In einer alternativen Variante der Erfindung könnte eine solche Wärmeleitbarriere auch in Form eines besonders schlecht wärmeleitfähigen Materials, wie beispielsweise einem Material auf keramischer Werkstoffbasis, ausgebildet sein. Such a thermally conductive barrier is advantageously designed as a material recess. Air, which is known to be a particularly good insulator and thus represents a barrier to heat conduction, usually occupies the space of a material recess. In an alternative variant of the invention, such a thermally conductive barrier could also be in the form of a particularly poorly thermally conductive material, such as a material based on ceramic material.
Erfindungsgemäß verbindet die Laterne das Pumpengehäuse und das Motorgehäuse unmittelbar. Prinzipiell ist kein weiteres Bauteil zur Herstellung dieser Verbindung notwendig. Eine Reduktion der Bauteilanzahl ist meist vorteilhaft für die Reduktion der Herstellungskosten. According to the invention, the lantern connects the pump housing and the motor housing directly. In principle, no additional component is required to establish this connection. A reduction in the number of components is usually advantageous for reducing the manufacturing costs.
Die Laterne ist vorzugsweise zylinderförmig und/oder trompetentrichterförmig ausgebildet. Diese räumliche Ausbildung ist besonders vorteilhaft, um eine zusätzliche Kühlung der Laterne durch den Kühlluftstrom, der vom Motorlüfter erzeugt wird, zu erzielen. In einer alternativen Variante der Erfindung kann die Laterne auch konusförmig und/oder quaderförmig ausgebildet sein. The lantern is preferably designed in the shape of a cylinder and/or a trumpet funnel. This spatial configuration is particularly advantageous in order to achieve additional cooling of the lantern by the flow of cooling air generated by the motor fan. In an alternative variant of the invention, the lantern can also be designed in the shape of a cone and/or cuboid.
In einer Variante der Erfindung ist die Laterne einstückig mit dem motorseitigen Druckdeckel des Pumpengehäuses und/oder einstückig mit dem pumpenseitigen Motordeckel ausgebildet. Vorteilhafterweise kann somit die Laterne besonders kompakt ausgeführt werden und ermöglicht eine Pumpenanordnung mit Abmaßen, die auch an Aufstellorten mit eingeschränkten Platzverhältnissen eingesetzt werden kann. Gemäß der Erfindung beträgt die Wärmeleitfähigkeit des Laternenmaterials weniger als 400 W/m K, vorzugsweise weniger als 300 W/m K, insbesondere weniger als 250 W/m K, und/oder mehr als 10 W/m K, vorzugsweise mehr als 20 W/m K, insbesondere mehr als 30 W/m K. Vorzugsweise wird die Laterne aus Grauguss oder Aluminium mittels Gussverfahren gefertigt. In a variant of the invention, the lantern is formed in one piece with the motor-side pressure cover of the pump housing and/or in one piece with the pump-side motor cover. Advantageously, the lantern can thus be made particularly compact and enables a pump arrangement with dimensions that can also be used at installation sites with limited space. According to the invention, the thermal conductivity of the lantern material is less than 400 W/m K, preferably less than 300 W/m K, in particular less than 250 W/m K, and/or more than 10 W/m K, preferably more than 20 W /m K, in particular more than 30 W/m K. The lantern is preferably made of gray cast iron or aluminum using a casting process.
Idealerweise beträgt die Wärmeleitfähigkeit der Wärmeleitbarriere weniger als 20 W/m K, vorzugsweise weniger als 15 W/m K, insbesondere weniger als 10 W/m K, und/oder mehr als 0,002 W/m K, vorzugsweise mehr als 0,05 W/m K, insbesondere mehr als 0,1 W/m K. Ideally, the thermal conductivity of the thermally conductive barrier is less than 20 W/m K, preferably less than 15 W/m K, in particular less than 10 W/m K, and/or more than 0.002 W/m K, preferably more than 0.05 W /m K, in particular more than 0.1 W/m K.
Gemäß der Erfindung beträgt die Breite der Materialaussparung mehr als 0,5 mm, vorzugsweise mehr als 1 mm, insbesondere mehr als 1 ,5 mm, und/oder weniger als 30 mm, vorzugsweise weniger als 25 mm, insbesondere weniger als 20 mm. Vorteilhafterweise beträgt die Materialdicke der Laterne mehr als 1 mm, vorzugsweise mehr als 2 mm, insbesondere mehr als 3 mm, und/oder weniger als 14 mm, vorzugsweise weniger als 12 mm, insbesondere weniger als 10 mm. Die erfindungsgemäße Laterne zeichnet sich durch eine schlanke Bauform mit überschaubarem Materialeinsatz bei gleichzeitig stabiler sowie schwingfester Ausführung aus. According to the invention, the width of the material cutout is more than 0.5 mm, preferably more than 1 mm, in particular more than 1.5 mm, and/or less than 30 mm, preferably less than 25 mm, in particular less than 20 mm. The material thickness of the lantern is advantageously more than 1 mm, preferably more than 2 mm, in particular more than 3 mm, and/or less than 14 mm, preferably less than 12 mm, in particular less than 10 mm. The lantern according to the invention is characterized by a slim design with a manageable use of material and at the same time a stable and vibration-resistant design.
Erfindungsgemäß ist die Laterne pumpenseitig und/oder motorseitig als Lagerträger ausgebildet. Dies führt zu einer besonders kompakten Bauweise der Laterne und gleichzeitig zur Reduktion des Montageaufwands durch Verringerung der Teileanzahl. According to the invention, the lantern is designed as a bearing support on the pump side and/or on the motor side. This leads to a particularly compact design of the lantern and at the same time to a reduction in the assembly effort due to the reduction in the number of parts.
Die erfindungsgemäße Laterne zeichnet sich durch eine kompakte, axiale Bauweise aus, bei der die gesamte Strecke der Wärmeleitung durch das Einfügen von Materialaussparungen verlängert wird. The lantern according to the invention is characterized by a compact, axial design, in which the entire heat conduction route is lengthened by inserting material recesses.
Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der Beschreibung von Ausführungsbeispielen anhand der Zeichnungen und aus den Zeichnungen selbst. Further features and advantages of the invention result from the description of exemplary embodiments based on the drawings and from the drawings themselves.
Dabei zeigt: Fig. 1 einen Schnitt durch eine Kreiselpumpeneinheit, It shows: 1 shows a section through a centrifugal pump unit,
Fig. 2 eine perspektivische Darstellung einer Laterne, 2 is a perspective view of a lantern,
Fig. 3 eine perspektivische Darstellung einer weiteren Laternenausführung, 3 is a perspective view of another lantern design,
Fig. 4 eine perspektivische Darstellung einer dritten Laternenausführung, 4 is a perspective view of a third lantern design,
Fig. 5 eine perspektivische Darstellung einer weiteren Laternenausführung. 5 is a perspective view of another lantern design.
Fig. 1 zeigt eine Pumpenanordnung mit einer Laterne 1 , die ein Pumpengehäuse 3 und ein Motorgehäuse 7 miteinander verbindet. Die im Ausführungsbeispiel dargestellte Kreiselpumpe wird zum Fördern von Fluiden eingesetzt, die unter Umständen hohe Temperaturen aufweisen können. 1 shows a pump arrangement with a lantern 1 which connects a pump housing 3 and a motor housing 7 to one another. The centrifugal pump shown in the exemplary embodiment is used to convey fluids that can have high temperatures under certain circumstances.
Durch einen Saugmund 2 tritt das Fluid in das Pumpengehäuse 3 der Kreiselpumpe ein. Innerhalb des Pumpengehäuses 3 ist das Laufrad 4 angeordnet. Das Laufrad 4 überträgt kinetische Energie auf das Fluid, das über den in dieser Abbildung nicht dargestellten Druckstutzen die Kreiselpumpe verlässt. Der mit Fluid und dem Laufrad 4 gefüllte Raum wird von einem Pumpengehäuse 3 und einem Gehäusedeckel 5 begrenzt. Das Laufrad 4 ist drehfest mit einer Welle 9 verbunden, die das Laufrad 4 mittels einer Motoranordnung 13 antreibt. Die Motoranordnung 13 umfasst einen Rotor 10, einen Stator 8, die Welle 9, einen pumpenseitigen Motordeckel 6 und ein Motorgehäuse 7. Im Motordeckel 6 ist ein Lagerträger angeordnet, der ein Lager 11 trägt. The fluid enters the pump housing 3 of the centrifugal pump through a suction mouth 2 . The impeller 4 is arranged within the pump housing 3 . The impeller 4 transfers kinetic energy to the fluid, which leaves the centrifugal pump via the pressure port, which is not shown in this figure. The space filled with fluid and the impeller 4 is delimited by a pump housing 3 and a housing cover 5 . The impeller 4 is connected in a torque-proof manner to a shaft 9 which drives the impeller 4 by means of a motor arrangement 13 . The motor arrangement 13 comprises a rotor 10, a stator 8, the shaft 9, a motor cover 6 on the pump side and a motor housing 7. A bearing carrier, which carries a bearing 11, is arranged in the motor cover 6.
Anhand der Darstellung der Laterne 1 in Fig. 1 ist deutlich ersichtlich, dass in allen mittigen Axialschnitten eine Wärmeleitbarriere 12 zwischen dem Pumpengehäuse 3 und dem Motorgehäuse 7 realisiert ist. Eine solche Wärmeleitbamere 12 ist in der Form ausgebildet, dass keine direkte axiale Verbindung zwischen den Gehäuseteilen besteht, was wiederum die Gehäuse 3 und 7 stärker thermisch entkoppelt. Auf diese vorteilhafte Weise ist die Strecke der Wärmeleitung radial enorm verlängert, ohne die axiale Baulänge der Laterne 1 zu vergrößern. The representation of the lantern 1 in FIG. 1 clearly shows that a thermally conductive barrier 12 is implemented between the pump housing 3 and the motor housing 7 in all central axial sections. Such a heat-conducting beam 12 is designed in such a way that there is no direct axial connection between the housing parts, which in turn thermally decouples the housings 3 and 7 to a greater extent. On this beneficial Way, the distance of the heat conduction is extended enormously radially, without increasing the axial length of the lantern 1.
Fig. 2 zeigt eine perspektivische Darstellung einer Laterne 1. Die Verbindungsplatte 15 zum Anschluss an den hier nicht dargestellten Motordeckel 6 ist mit Verbindungsstegen 14 mit der Verbindungsplatte 16 zum Anschluss an den ebenfalls nicht dargestellten Gehäusedeckel 5 des Pumpengehäuses 3 verbunden. Die Laterne 1 weist mehrere Wärmeleitbarrieren 12 auf, die in diesem Ausführungsbeispiel als Matenalaussparungen ausgebildet sind. In einer alternativen Variante könnte die Wärmeleitbarriere auch als ein schlecht wärmeleitfähiges Material ausgeführt sein. Die Verbindungsstege 14 verhindern ein Eingreifen in die sich drehende Welle 9. Durch die konstruktive Gestaltung der Verbindungsstege 14 ist eine Laterne 1 realisiert, die auf möglichst kurzem axialem Bauraum einen äußerst langen umfänglichen Weg der Wärmeleitung bereitstellt. Der vom nicht dargestellten Motorlüfter erzeugte Kühlluftstrom, der über die Kühlrippen des Motorgehäuses 7 Richtung Laterne 1 strömt, kann zusätzlich zur Wärmeleitbarriere 12 die von den Verbindungsstegen 14 vom Pumpengehäuse 3 ausgehend geleitete Wärme abführen, so dass am Motordeckel 6 ein äußerst geringfügiger Wärmeeintrag ankommt. Durch die besonders vorteilhafte Konstruktion der Laterne 1 sind das Pumpengehäuse 3 und die Motoranordnung 13 thermisch stärker entkoppelt. 2 shows a perspective view of a lantern 1. The connecting plate 15 for connection to the motor cover 6, not shown here, is connected with connecting webs 14 to the connecting plate 16 for connection to the housing cover 5 of the pump housing 3, also not shown. The lantern 1 has a plurality of thermally conductive barriers 12 which, in this exemplary embodiment, are in the form of material recesses. In an alternative variant, the thermally conductive barrier could also be designed as a poorly thermally conductive material. The connecting webs 14 prevent reaching into the rotating shaft 9. The structural design of the connecting webs 14 results in a lantern 1 which provides an extremely long circumferential path for heat conduction in the shortest possible axial installation space. The cooling air flow generated by the engine fan, not shown, which flows over the cooling fins of the engine housing 7 in the direction of the lantern 1, can, in addition to the heat conduction barrier 12, dissipate the heat conducted from the connecting webs 14 from the pump housing 3, so that the engine cover 6 receives an extremely small amount of heat. Due to the particularly advantageous construction of the lantern 1, the pump housing 3 and the motor arrangement 13 are more thermally decoupled.
Fig. 3 zeigt eine perspektivische Darstellung einer weiteren Ausführung der Laterne 1. Die Verbindungsplatte 15 zum Anschluss an den hier nicht dargestellten Motordeckel 6 ist mit Verbindungsstegen 14 mit der Verbindungsplatte 16 zum Anschluss an den ebenfalls nicht dargestellten Gehäusedeckel 5 des Pumpengehäuses 3 verbunden. Die Laterne 1 weist mehrere Wärmeleitbarrieren 12 auf, die in diesem Ausführungsbeispiel als Materialaussparungen ausgebildet sind. In dieser Ausführungsvariante der Erfindung sind die Verbindungsstege 14 als zylinderförmiges Bauteil ausgebildet, die über vier kleine Verbindungselemente jeweils mit den Verbindungsplatten 15 und 16 einstückig ausgebildet sind. Die Materialaussparungen sind jeweils zwischen den kleinen Verbindungselementen sowie zwischen dem zylinderförmigen Bauteil und der Verbindungsplatte 16 sowie dem zylinderförmigen Bauteil und der Verbindungsplatte 15 angeordnet. Vorteilhafterweise ist mittels dieser Variante der Laterne 1 die Motoranordnung 13 vom Pumpengehäuse 3 thermisch entkoppelt und gleichzeitig ist die Laterne 1 besonders stabil sowie schwingfest ausgeführt. 3 shows a perspective view of a further embodiment of the lantern 1. The connection plate 15 for connection to the motor cover 6, not shown here, is connected with connecting webs 14 to the connection plate 16 for connection to the housing cover 5 of the pump housing 3, also not shown. The lantern 1 has a plurality of thermally conductive barriers 12 which, in this exemplary embodiment, are in the form of material recesses. In this embodiment variant of the invention, the connecting webs 14 are designed as a cylindrical component, which are designed in one piece with the connecting plates 15 and 16 via four small connecting elements. The material recesses are each arranged between the small connecting elements and between the cylindrical component and the connecting plate 16 and the cylindrical component and the connecting plate 15 . Advantageously, this variant of the lantern 1 is the motor arrangement 13 is thermally decoupled from the pump housing 3 and at the same time the lantern 1 is designed to be particularly stable and resistant to vibration.
Fig. 4 zeigt eine perspektivische Darstellung einer dritten Ausführungsvariante der erfindungsgemäßen Laterne 1. Die Verbindungsplatte 15 zum Anschluss an den hier nicht dargestellten Motordeckel 6 ist mit Verbindungsstegen 14 mit der Verbindungsplatte 16 zum Anschluss an den ebenfalls nicht dargestellten Gehäusedeckel 5 des Pumpengehäuses 3 verbunden. Die Laterne 1 weist eine Vielzahl an Wärmeleitbarrieren 12 auf, die in diesem Ausführungsbeispiel als Matenalaussparungen ausgebildet sind. Die Laterne 1 der Fig. 4 entspricht der Laterne 1 aus Fig. 3. Dabei ist zusätzlich das zylinderförmige Bauteil mit weiteren axial angeordneten Wärmeleitbarrieren 12 in Form von Matenalaussparungen versehen. Dadurch ist die radiale und/oder axiale Strecke der Wärmeleitung vom Pumpengehäuse 3 in Richtung Motoranordnung 13 verlängert, ohne die axiale Länge der Laterne 1 zu vergrößern. Fig. 4 shows a perspective view of a third embodiment variant of the lantern 1 according to the invention. The connecting plate 15 for connection to the motor cover 6, not shown here, is connected with connecting webs 14 to the connecting plate 16 for connection to the housing cover 5, also not shown, of the pump housing 3. The lantern 1 has a large number of thermally conductive barriers 12, which in this exemplary embodiment are designed as material recesses. The lantern 1 of FIG. 4 corresponds to the lantern 1 of FIG. 3. The cylindrical component is additionally provided with further axially arranged thermally conductive barriers 12 in the form of material cutouts. As a result, the radial and/or axial distance of the heat conduction from the pump housing 3 in the direction of the motor arrangement 13 is lengthened without increasing the axial length of the lantern 1 .
Dabei beträgt die Wärmeleitfähigkeit des Laternenmaterials weniger als 400 W/m K, vorzugsweise weniger als 300 W/m K, insbesondere weniger als 250 W/m K, und/oder mehr als 10 W/m K, vorzugsweise mehr als 20 W/m K, insbesondere mehr als 30W/m K. Die Wärmeleitfähigkeit der Wärmeleitbarriere 12 beträgt hierbei weniger als 20 W/m K, vorzugsweise weniger als 15 W/m K, insbesondere weniger als 10 W/m K, und/oder mehr als 0,002 W/m K, vorzugsweise mehr als 0,05 W/m K, insbesondere mehr als 0,1 W/m K. The thermal conductivity of the lantern material is less than 400 W/m K, preferably less than 300 W/m K, in particular less than 250 W/m K, and/or more than 10 W/m K, preferably more than 20 W/m K, in particular more than 30 W/m K. The thermal conductivity of the thermally conductive barrier 12 is less than 20 W/m K, preferably less than 15 W/m K, in particular less than 10 W/m K, and/or more than 0.002 W / m K, preferably more than 0.05 W / m K, in particular more than 0.1 W / m K.
Die Breite der Wärmeleitbarriere 12, die in diesem Ausführungsbeispiel als Matenalaussparung ausgeführt ist, beträgt mehr als 0,5 mm, vorzugsweise mehr als 1 mm, insbesondere mehr als 1 ,5 mm, und/oder weniger als 30 mm, vorzugsweise weniger als 25 mm, insbesondere weniger als 20 mm. Die Materialdicke der Laterne 1 beträgt mehr als 1 mm, vorzugsweise mehr als 2 mm, insbesondere mehr als 3 mm, und/oder weniger als 14 mm, vorzugsweise weniger als 12 mm, insbesondere weniger als 10 mm. The width of the thermally conductive barrier 12, which is designed as a material recess in this exemplary embodiment, is more than 0.5 mm, preferably more than 1 mm, in particular more than 1.5 mm, and/or less than 30 mm, preferably less than 25 mm , especially less than 20 mm. The material thickness of the lantern 1 is more than 1 mm, preferably more than 2 mm, in particular more than 3 mm, and/or less than 14 mm, preferably less than 12 mm, in particular less than 10 mm.
Fig. 5 zeigt eine perspektivische Darstellung einer Laterne 1. Die Verbindungsplatte 15 zum Anschluss an den hier nicht dargestellten Motordeckel 6 ist mit Verbindungsstegen 14 über eine hohlzylinderförmige Hülse 17 und weiteren Verbindungsstegen 14 mit der Verbindungsplatte 16 zum Anschluss an den ebenfalls nicht dargestellten Gehäusedeckel 5 des Pumpengehäuses 3 verbunden. Fig. 5 shows a perspective view of a lantern 1. The connecting plate 15 for connection to the motor cover 6, not shown here, has connecting webs 14 is connected via a hollow-cylindrical sleeve 17 and further connecting webs 14 to the connecting plate 16 for connection to the housing cover 5 of the pump housing 3, which is also not shown.
Die Laterne 1 weist mehrere Wärmeleitbarrieren 12 auf, die in diesem Ausführungsbeispiel als Matenalaussparungen ausgebildet sind. In einer alternativen Variante könnte die Wärmeleitbarriere auch aus einem schlecht wärmeleitfähigen Material ausgeführt sein. Die Verbindungsstege 14 und die hohlzylinderförmige Hülse 17 verhindern ein Eingreifen in die sich drehende Welle 9 und leiten die Kräfte vom Motorgehäuse 7 in den Standfuß der Pumpe, die durch die Masse der Motoranordnung 13 wirken. Dazu ist die hohlzylinderförmige Hülse 17 in der gezeigten Ausführung zusätzlich um zwei Ausformungen 18 verstärkt. The lantern 1 has a plurality of thermally conductive barriers 12 which, in this exemplary embodiment, are in the form of material recesses. In an alternative variant, the thermally conductive barrier could also be made of a poorly thermally conductive material. The connecting webs 14 and the hollow-cylindrical sleeve 17 prevent an engagement with the rotating shaft 9 and direct the forces from the motor housing 7 into the base of the pump, which act through the mass of the motor arrangement 13 . For this purpose, the hollow-cylindrical sleeve 17 is additionally reinforced by two formations 18 in the embodiment shown.
Die Wärmeleitbameren 12, die neben den Verbindungsstegen 14 angeordnet sind, begrenzen die Wärmeleitung auf ein Minimum und verlängern den Weg der Wärmeleitung von der Verbindungsplatte 16 in Richtung der Verbindungsplatte 15 insbesondere durch die radial nach innen ausgerichtete Erstreckung der Verbindungsstege 14. The heat-conducting arms 12, which are arranged next to the connecting webs 14, limit the heat conduction to a minimum and extend the path of the heat conduction from the connecting plate 16 in the direction of the connecting plate 15, in particular due to the radially inward extension of the connecting webs 14.
Die quaderförmige Verbindungsplatte 16 ist mit abgerundeten Ecken ausgebildet, wobei die Verbindungsstege 14 jeweils mittig ansetzen und sich strebenartig, radial nach innen erstrecken. Die hohlzylinderförmige Hülse 17 weist zusätzliche Wärmeleitbarrieren 12 in Form von Matenalaussparungen auf, die zu einem verlängerten Weg der Wärmeleitung führen und dadurch das Pumpengehäuse 3 und das Motorgehäuse 7 thermisch nahezu entkoppeln. The cuboid connecting plate 16 is designed with rounded corners, the connecting webs 14 each starting in the middle and extending radially inward in the manner of struts. The hollow-cylindrical sleeve 17 has additional heat-conducting barriers 12 in the form of material recesses, which lead to a longer heat conduction path and thereby almost thermally decouple the pump housing 3 and the motor housing 7 .
Der vom nicht dargestellten Motorlüfter erzeugte Kühlluftstrom, der über die Kühlrippen des Motorgehäuses 7 Richtung Laterne 1 strömt, kann zusätzlich zu den Wärmeleitbarrieren 12 die von den Verbindungsstegen 14 vom Pumpengehäuse 3 ausgehend geleitete Wärme abführen, so dass am Motordeckel 6 ein äußerst geringfügiger Wärmeeintrag ankommt. The cooling air flow generated by the engine fan, not shown, which flows over the cooling fins of the engine housing 7 in the direction of the lantern 1, can, in addition to the thermally conductive barriers 12, dissipate the heat conducted from the connecting webs 14 from the pump housing 3, so that the engine cover 6 receives an extremely small amount of heat.
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020006363 | 2020-10-16 | ||
| DE102021005120.3A DE102021005120A1 (en) | 2020-10-16 | 2021-10-13 | Lantern with thermal break |
| PCT/EP2021/078401 WO2022079147A1 (en) | 2020-10-16 | 2021-10-14 | Coupling unit with thermal separation effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4229300A1 true EP4229300A1 (en) | 2023-08-23 |
Family
ID=78179420
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21793905.7A Pending EP4229300A1 (en) | 2020-10-16 | 2021-10-14 | Coupling unit with thermal separation effect |
| EP21791354.0A Pending EP4229299A1 (en) | 2020-10-16 | 2021-10-14 | Coupling unit with connecting pieces |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21791354.0A Pending EP4229299A1 (en) | 2020-10-16 | 2021-10-14 | Coupling unit with connecting pieces |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US12270399B2 (en) |
| EP (2) | EP4229300A1 (en) |
| JP (2) | JP2023545838A (en) |
| CN (2) | CN116529488A (en) |
| DE (2) | DE102021005123A1 (en) |
| WO (2) | WO2022079147A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021005123A1 (en) * | 2020-10-16 | 2022-04-21 | KSB SE & Co. KGaA | Lantern with bars |
| DE102022133416A1 (en) | 2022-12-15 | 2024-06-20 | KSB SE & Co. KGaA | Axially mountable stub shaft |
Family Cites Families (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2350983A (en) | 1942-04-10 | 1944-06-13 | Waterous Co | Centrifugal pump |
| DE2710443A1 (en) * | 1977-03-10 | 1978-09-14 | Klein Schanzlin & Becker Ag | HEAT BARRIER FOR HIGH TEMPERATURE CIRCULATION PUMPS |
| DE3016681C2 (en) * | 1980-04-30 | 1986-01-02 | Klein, Schanzlin & Becker Ag, 6710 Frankenthal | Thermal barrier for high temperature circulating pumps without stuffing box |
| JP3426705B2 (en) * | 1994-06-21 | 2003-07-14 | 大阪瓦斯株式会社 | Canned motor pump for high viscosity low temperature fluid |
| US5624245A (en) * | 1994-10-26 | 1997-04-29 | Mp Pumps, Inc. | Centrufugal pump with thermally isolated and dynamically air cooled shaft seal assembly |
| JPH08277800A (en) * | 1995-04-05 | 1996-10-22 | Toho Eng Kk | Centrifugal blower |
| DE19721196A1 (en) * | 1997-05-21 | 1998-11-26 | Klein Schanzlin & Becker Ag | Machine unit with integrated heat barrier |
| US6129529A (en) * | 1998-09-29 | 2000-10-10 | Marley Pump | Liquid petroleum gas submersible electric motor driven pump and drive coupling therefor |
| DE19912936A1 (en) | 1999-03-22 | 2000-09-28 | Wilo Gmbh | Lantern to attach a motor to a pump |
| US6398521B1 (en) * | 2001-01-30 | 2002-06-04 | Sta-Rite Industries, Inc. | Adapter for motor and fluid pump |
| US8303266B2 (en) * | 2007-08-31 | 2012-11-06 | Nidec Motor Corporation | Mounting flange, pump having mounting flange and mold for mounting flange |
| DE102009052155A1 (en) | 2009-11-06 | 2011-05-12 | Wilo Se | Device between pump and electric motor |
| JP5271928B2 (en) * | 2010-01-26 | 2013-08-21 | 株式会社酉島製作所 | Circulation pump |
| JP5798338B2 (en) * | 2011-02-24 | 2015-10-21 | 株式会社酉島製作所 | Circulation pump |
| DE102014218720A1 (en) | 2014-09-18 | 2016-03-24 | Robert Bosch Gmbh | Electric motor-hydraulic machine combination |
| CN104500407A (en) * | 2014-12-01 | 2015-04-08 | 安徽凯特泵业有限公司 | High-temperature acid pump |
| EP3085961B1 (en) | 2015-04-20 | 2020-08-05 | Grundfos Holding A/S | Multi-stage radial pump |
| US10280931B2 (en) * | 2016-01-27 | 2019-05-07 | Pentair Flow Technologies, Llc | Systems and methods for split coupled pump and jacking gland |
| CN107503947B (en) * | 2017-09-13 | 2024-06-11 | 中广核研究院有限公司 | Mechanical pump for conveying liquid metal |
| CN207750254U (en) * | 2017-11-09 | 2018-08-21 | 合肥华升泵阀股份有限公司 | A kind of vertical driving pump installation of the special fluid liquid of conveying |
| JP7030590B2 (en) * | 2018-03-27 | 2022-03-07 | 株式会社荏原製作所 | Protective cover for rotating equipment and rotating equipment equipped with it |
| US12085075B2 (en) * | 2020-06-19 | 2024-09-10 | EasyFlow Oü | Pump connecting and adjusting system |
| DE102021005123A1 (en) * | 2020-10-16 | 2022-04-21 | KSB SE & Co. KGaA | Lantern with bars |
-
2021
- 2021-10-13 DE DE102021005123.8A patent/DE102021005123A1/en active Pending
- 2021-10-13 DE DE102021005120.3A patent/DE102021005120A1/en active Pending
- 2021-10-14 JP JP2023523299A patent/JP2023545838A/en active Pending
- 2021-10-14 EP EP21793905.7A patent/EP4229300A1/en active Pending
- 2021-10-14 US US18/032,124 patent/US12270399B2/en active Active
- 2021-10-14 CN CN202180070665.8A patent/CN116529488A/en active Pending
- 2021-10-14 WO PCT/EP2021/078401 patent/WO2022079147A1/en not_active Ceased
- 2021-10-14 WO PCT/EP2021/078396 patent/WO2022079144A1/en not_active Ceased
- 2021-10-14 CN CN202180070641.2A patent/CN116420026A/en active Pending
- 2021-10-14 US US18/031,964 patent/US20230392612A1/en active Pending
- 2021-10-14 JP JP2023523293A patent/JP2023545203A/en active Pending
- 2021-10-14 EP EP21791354.0A patent/EP4229299A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JP2023545203A (en) | 2023-10-26 |
| EP4229299A1 (en) | 2023-08-23 |
| WO2022079144A1 (en) | 2022-04-21 |
| US12270399B2 (en) | 2025-04-08 |
| DE102021005120A1 (en) | 2022-04-21 |
| CN116529488A (en) | 2023-08-01 |
| JP2023545838A (en) | 2023-10-31 |
| US20230383755A1 (en) | 2023-11-30 |
| CN116420026A (en) | 2023-07-11 |
| US20230392612A1 (en) | 2023-12-07 |
| WO2022079147A1 (en) | 2022-04-21 |
| DE102021005123A1 (en) | 2022-04-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE4121430C1 (en) | ||
| EP2640977B1 (en) | Magnetically driven pump arrangement having a micropump with forced flushing, and operating method | |
| EP0831236B2 (en) | Motor pump with cooled frequency converter | |
| EP4229300A1 (en) | Coupling unit with thermal separation effect | |
| EP0573504A1 (en) | Power-generator unit with cooled core. | |
| EP1085213B1 (en) | Wet rotor motorpump with mounting plate | |
| DE102019002392A1 (en) | Thermal barrier | |
| EP3759356A1 (en) | Electric coolant pump | |
| EP4229740A1 (en) | Centrifugal pump comprising a drive | |
| DE102014016481A1 (en) | Electromotive water pump | |
| DE102006049326A1 (en) | Encapsulated electric machine with liquid-cooled stator | |
| DE102015214785B3 (en) | Electric compressor | |
| WO2007054169A1 (en) | Fluid pump | |
| DE10000431A1 (en) | Electronics cooling through canned lid | |
| DE102020105337B4 (en) | Thermally optimized coolant pump | |
| EP4264060A1 (en) | Lanterns with elements for heat discharge | |
| EP4229741B1 (en) | Centrifugal pump comprising a drive | |
| EP3084219B1 (en) | Pump device | |
| DE102008057414B3 (en) | Delivery device, particularly high speed delivery device for liquid media, particularly explosive liquids, has electric motor, pump rotor, pump housing and electronic power control system | |
| WO2007054171A1 (en) | Fluid pump | |
| DE102004047635B4 (en) | Electrically operated pump with internal rotor | |
| DE102004047637A1 (en) | Electrically driven pump with outer rotor, comprises housing separating fluid flow end from non-fluid flow end, outer rotor in fluid flow end, and stator in non-fluid flow end | |
| DE102017128098A1 (en) | Hydraulic system | |
| EP3579392A1 (en) | System for cooling an electrical machine | |
| DE102021129530A1 (en) | Double impeller cooling water pump for electric vehicles and cooling circuit for a thermal management module with an electric water pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20230328 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: SCHUNK, AXEL |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
| INTG | Intention to grant announced |
Effective date: 20250805 |
|
| GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |