EP2233744A2 - Kreiselmotorpumpe - Google Patents
Kreiselmotorpumpe Download PDFInfo
- Publication number
- EP2233744A2 EP2233744A2 EP10000677A EP10000677A EP2233744A2 EP 2233744 A2 EP2233744 A2 EP 2233744A2 EP 10000677 A EP10000677 A EP 10000677A EP 10000677 A EP10000677 A EP 10000677A EP 2233744 A2 EP2233744 A2 EP 2233744A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump
- motor
- centrifugal motor
- flexible
- decoupling
- 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.)
- Granted
Links
- 229920001971 elastomer Polymers 0.000 claims abstract description 5
- 229920002457 flexible plastic Polymers 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 11
- 239000012528 membrane Substances 0.000 claims description 7
- 238000004382 potting Methods 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 5
- 239000000806 elastomer Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 238000004804 winding Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
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
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal 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
- 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
- F04D13/0606—Canned motor pumps
- F04D13/0626—Details of the can
-
- 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
- F04D13/0606—Canned motor pumps
- F04D13/064—Details of the magnetic circuit
-
- 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
- F04D29/02—Selection of particular materials
- F04D29/026—Selection of particular materials 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
- F04D29/08—Sealings
- F04D29/16—Sealings between pressure and suction sides
- F04D29/165—Sealings between pressure and suction sides especially adapted for liquid pumps
- F04D29/167—Sealings between pressure and suction sides especially adapted for liquid pumps of a centrifugal flow wheel
-
- 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
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
-
- 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
- F05D2260/96—Preventing, counteracting or reducing vibration or noise
-
- 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
- F05D2300/00—Materials; Properties thereof
- F05D2300/40—Organic materials
- F05D2300/43—Synthetic polymers, e.g. plastics; Rubber
-
- 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
- F05D2300/00—Materials; Properties thereof
- F05D2300/50—Intrinsic material properties or characteristics
- F05D2300/518—Ductility
Definitions
- the invention relates to a centrifugal motor pump in wet rotor design with a surrounding the electric motor rotor containment shell or can.
- centrifugal motor pumps in which the motor rotor is surrounded by a split pot or can, so that the rotor is cooled by the fluid flowing around. Furthermore, by the non-prepublished German patent application ( 102008055613.0 ) proposed to form the pump chamber through the split tube.
- the object of the invention is to improve a centrifugal motor pump of the type mentioned so that with high noise insulation safe seals are achieved.
- This object is achieved in that the containment shell or the can is guided so far to the pump impeller that he / she surrounds the pump impeller and the wall of the particular spiral pump chamber completely or partially, and that the area of the pump chamber wall facing the pump inlet is connected to the edge of the pump inlet opening and / or the pump outlet opening and flexible in order, as a decoupling element, to limit movements of the containment shell or can with respect to the pump housing.
- a sealing membrane is combined with the function of a decoupling element.
- this component serves as a part of the spiral space and seals it against the second part of the spiral space.
- the vibratory mounted pump has a canned / containment shell with at least partially formed spiral space.
- the pump is vibration-decoupled / damped by means of vibration elements with respect to a rigid outer casing.
- the spiral space formed on the gap tube is closed by means of an elastic component on the inlet and outlet side.
- the closing component includes parts of the spiral contour and possibly the geometry of the inlet and outlet sides.
- the component in the center has a possibly concentrically shaped membrane, which seals against the inlet side of the rigid connection housing. If necessary, this membrane can be designed such that it assumes the function of a vibration-reducing decoupling element. Due to the elastic design and the tongue of the spiral contour is elastic, resulting in the reduction of blade vibrations.
- a centrifugal motor pump is shown in Navyssenrbauart.
- the can 1 is closed at both ends in each case by a bearing plate 6a, 6b, in whose bearings 7 the motor shaft 4 is mounted, which carries the pump impeller 9 at one end.
- Return ring 2 and windings 3 are encased by a potting material 10 made of elastic plastic, in particular an elastomer, so that the stator with its potting material 10 forms a unit from which the motor shaft 4 exits into the pump chamber 11 in order to carry there the pump impeller 9.
- a potting material 10 made of elastic plastic, in particular an elastomer, so that the stator with its potting material 10 forms a unit from which the motor shaft 4 exits into the pump chamber 11 in order to carry there the pump impeller 9.
- the motor stator is surrounded by an outer motor housing 12 at a distance such that there is an intermediate space 13 between the stator and the housing 12.
- the intermediate space 13 is bridged by the potting material 10 as a vibration damper in particular as a spring element which decouples the stator relative to the motor housing 12 and thus ensures that vibrations generated by the stator or rotor 5 are not transmitted to the motor housing 12 substantially.
- the can 1 also forms the pump chamber 11 and also the pump spiral space.
- the can 1 (which may also be formed by a split pot) extends far into the pump area or into the pump housing, projects beyond and surrounds the pump impeller 9 and at the same time forms the suction opening / pump inlet opening 20 with the suction nozzle and the pressure opening / pump outlet opening 21 with the discharge nozzle.
- the relatively rigid plastic material of the can 1 is not guided to the inlet and outlet ports 20, 21, but it ends earlier and it is attached to this material, a second wall-shaped decoupling element 23 attached / attached from flexible plastic, up to the openings 20, 21 is guided and at least at the pump inlet opening is secured sealed all around, so that a limited mobility of the can 1 with respect to the pump housing 22 and the openings 20, 21 is given.
- the decoupling element 23 has a membrane 24, by which a high degree of flexibility is ensured.
- the material of the decoupling element 23 itself may be less flexible.
- the winding 3 is electrically connected via a coil wire 18 and a liquid-tight contact 19.
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)
Abstract
Description
- Die Erfindung betrifft eine Kreiselmotorpumpe in Nassläuferbauart mit einem den Elektromotorenrotor umgebenden Spalttopf oder Spaltrohr.
- Es sind Kreiselmotorpumpen bekannt, bei denen der Motorenrotor von einem Spalttopf oder Spaltrohr umgeben ist, so dass der Rotor von der Förderflüssigkeit kühlend umströmt ist. Ferner wird durch die nicht vorveröffentlichte deutsche Patentanmeldung (
102008055613.0 ) vorgeschlagen, die Pumpenkammer durch das Spaltrohr auszubilden. - Wird bei solchen Pumpen der Motorenstator innerhalb des Motorengehäuses schwingungsentkoppelt gelagert, wie dies die nicht vorveröffentlichte deutsche Patentanmeldung (
102008055614.9 ) vorschlägt, so ist an den Verbindungsstellen im Bereich der Pumpeneinlass- und/oder -auslassöffnung für eine sichere Abdichtung zwischen Pumpenkammerwand und Pumpenaußengehäuse zu sorgen. - Aufgabe der Erfindung ist es, eine Kreiselmotorpumpe der eingangs genannten Art so zu verbessern, dass bei hoher Geräuschdämmung sichere Abdichtungen erreicht werden.
- Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass der Spalttopf oder das Spaltrohr so weit zum Pumpenlaufrad geführt ist, dass er/es das Pumpenlaufrad umgibt und die Wand des insbesondere spiralförmigen Pumpenraums vollständig oder teilweise bildet, und dass der dem Pumpeneinlass zugewandte Bereich der Pumpenraumwand an dem Rand der Pumpeneinlassöffnung und/oder der Pumpenauslassöffnung angeschlossen und flexibel ist, um als Entkopplungselement Bewegungen des Spalttopfes oder Spaltrohres gegenüber dem Pumpengehäuse begrenzt zuzulassen.
- Eine solche Konstruktion stellt sicher, dass interne Leckagen insbesondere zwischen Saug- und Druckstutzen nicht entstehen und dabei immer noch eine hohe Geräuschdämmung/-dämpfung erzielt wird. Dies bei einfacher Konstruktion und kleiner Bauweise.
- Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen aufgeführt.
- Wird ein Motor/Pumpe in einem starren Anschlussgehäuse schwingungsentkoppelt, so entstehen durch die notwendigen Spalten zwischen der schwingenden und der starren Baugruppe hydraulische Verluste. Um interne Leckagen zwischen Saug- und Druckstutzen zu minimieren bzw. zu eliminieren, ist einer der beiden Stutzen mit dem stabilen Gehäuse abzudichten. Da der entkoppelte Motor mit der angebundenen Spiralkontur schwingfähig gelagert ist, ist eine sehr flexible Dichtung erforderlich, die das Schwingungsverhalten nicht verschlechtert.
- Somit ist die Funktion einer abdichtenden Membran mit der Funktion eines Entkopplungselementes vereint. Gleichzeitig dient dieses Bauelement als Teilstück des Spiralraums und dichtet diesen gegen das zweite Teil des Spiralraums ab.
- Die schwingfähig gelagerte Pumpe verfügt über einen Spaltrohr/Spalttopf mit zumindest teilweise angeformtem Spiralraum. Die Pumpe wird mittels Schwingungselementen gegenüber einem starren Außengehäuse schwingungsentkoppelt/gedämpft. Der am Spaltrohr angeformte Spiralraum wird mittels eines elastischen Bauteils auf der Einlass- und Auslassseite verschlossen.
- Das verschließende Bauteil beinhaltet Teile der Spiralkontur und ggf. die Geometrie der Einlass und Auslassseite.
- Um die Einlass- gegen die Auslassseite abzudichten, besitzt das Bauteil im Zentrum eine ggf. konzentrisch geformte Membran, die sich an die Einlassseite des starren Anschlussgehäuses dichtend anlegt. Diese Membran kann ggf. so ausgeführt werden, dass sie die Funktion eines schwingungsreduzierenden Entkopplungselementes übernimmt. Durch die elastische Ausführung wird auch die Zunge der Spiralkontur elastisch, was zur Reduzierung von Schaufelschwingungen führt.
- Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung in einem axialen Schnitt schematisch dargestellt und wird im Folgenden näher beschrieben.
- Im Ausführungsbeispiel ist eine Kreiselmotorpumpe in Nassläuferbauart dargestellt. Hierbei weist der Motorenstator Wicklungen 3, einen Rückschlussring 2 und ein innen liegendes Spaltrohr 1 auf, das von der Förderflüssigkeit durchflossen ist und in dem mit einer Motorenwelle 4 ein Rotor 5 drehbar gelagert ist. Das Spaltrohr 1 ist an beiden Enden jeweils durch ein Lagerschild 6a, 6b verschlossen, in dessen Lagern 7 die Motorwelle 4 gelagert ist, die an einem Ede das Pumpenlaufrad 9 trägt. Rückschlussring 2 und Wicklungen 3 sind von einem Vergussmaterial 10 aus elastischem Kunststoff insbesondere einem Elastomer ummantelt, so dass der Stator mit seinem Vergussmaterial 10 eine Einheit bildet, aus der die Motorenwelle 4 in den Pumpenraum 11 hinein austritt, um dort das Pumpenlaufrad 9 zu tragen.
- Der Motorenstator ist von einem äußeren Motorgehäuse 12 derart in einem Abstand umgeben, dass zwischen dem Stator und dem Gehäuse 12 rundum ein Zwischenraum 13 besteht. Der Zwischenraum 13 ist durch das Vergussmaterial 10 als Schwingungsdämpfer insbesondere als Federelement überbrückt, das den Stator gegenüber dem Motorgehäuse 12 entkoppelt und damit dafür sorgt, dass vom Stator bzw. Rotor 5 erzeugte Schwingungen auf das Motorgehäuse 12 im Wesentlichen nicht übertragen werden.
- Das Spaltrohr 1 bildet zugleich den Pumpenraum 11 und auch den Pumpenspiralraum. Hierzu ist das Spaltrohr 1 (das auch von einem Spalttopf gebildet sein kann) weit in den Pumpenbereich bzw. in das Pumpengehäuse hinein verlängert, überragt und umgibt das Pumpenlaufrad 9 und bildet zugleich die Saugöffnung/Pumpeneinlassöffnung 20 mit dem Saugstutzen und die Drucköffnung/Pumpenauslassöffnung 21 mit dem Druckstutzen.
- Das verhältnismäßig starre Kunststoffmaterial des Spaltrohrs 1 ist hierbei nicht bis zur Einlass- und Auslassöffnung 20, 21 geführt, sondern es endet früher und es ist an diesem Material ein zweites wandförmiges Entkopplungselement 23 befestigt/angefügt aus flexiblem Kunststoff, das bis zu den Öffnungen 20, 21 geführt ist und zumindest an der Pumpeneinlassöffnung rundum abgedichtet befestigt ist, so dass eine begrenzte Beweglichkeit des Spaltrohrs 1 gegenüber dem Pumpengehäuse 22 und den Öffnungen 20, 21 gegeben ist.
- Hierbei weist im Ausführungsbeispiel das Entkopplungselement 23 eine Membran 24 auf, durch die eine hohe Flexibilität gesichert ist. Bei Verwendung einer Membran 24 kann das Material des Entkopplungselements 23 selber weniger flexibel sein.
- Die Wicklung 3 ist über einen Spulendraht 18 und eine flüssigkeitsdichte Kontaktierung 19 elektrisch verbunden.
Claims (9)
- Kreiselmotorpumpe in Nassläuferbauart mit einem den Elektromotorenrotor (5) umgebenden Spalttopf oder Spaltrohr (1), dadurch gekennzeichnet, dass der Spalttopf oder das Spaltrohr (1) so weit zum Pumpenlaufrad (9) geführt ist, dass er/es das Pumpenlaufrad (9) umgibt und die Wand des insbesondere spiralförmigen Pumpenraums (17) vollständig oder teilweise bildet, und dass der dem Pumpeneinlass zugewandte Bereich (23) der Pumpenraumwand (25) an dem Rand der Pumpeneinlassöffnung (20) und/oder der Pumpenauslassöffnung (21) angeschlossen und flexibel ist, um als Entkopplungselement Bewegungen des Spalttopfes oder Spaltrohres (1) gegenüber dem Pumpengehäuse (22) begrenzt zuzulassen.
- Kreiselmotorpumpe nach Anspruch 1, dadurch gekennzeichnet, dass der dem Pumpeneinlass zugewandte Bereich (23) der Pumpenraumwand (25) aus einem flexiblen Material insbesondere aus einem flexiblen Kunststoff oder Gummi besteht.
- Kreiselmotorpumpe nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der dem Pumpeneinlass zugewandte Bereich (23) der Pumpenraumwand (25) eine flexible Membran (24) aufweist oder von einer flexiblen Membran gebildet ist.
- Kreiselmotorpumpe nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die Zunge der Spiralkontur der Pumpenraumwand (25) aus einem flexiblen Material insbesondere aus einem flexiblen Kunststoff oder Gummi besteht.
- Kreiselmotorpumpe nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass zwischen dem Motorenstator und dem äußeren Motorengehäuse (12) eine Entkopplung (10) zur Geräuschminderung angeordnet ist.
- Kreiselmotorpumpe nach Anspruch 5, dadurch gekennzeichnet, dass die Entkopplung (10) von einem elastischen Kunststoff-Vergussmaterial insbesondere einem Elastomer gebildet ist.
- Kreiselmotorpumpe nach Anspruch 5, dadurch gekennzeichnet, dass die Entkopplung (10) von federnden Elementen gebildet ist.
- Kreiselmotorpumpe nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass der Motorenstator von geräuschentkoppelndem Kunststoff-Vergussmaterial (10) umgeben ist und zwischen dem Kunststoff-Vergussmaterial (10) und dem Motorengehäuse (12) ein Zwischenraum (13) besteht, der von der Pumpenförderflüssigkeit durchflossen ist.
- Kreiselmotorpumpe nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass auf der Innenseite des Spaltrohres (1) oder Spalttopfes mindestens ein Lagerschild (6a) befestigt insbesondere angeformt ist, das ein Lager (7) für die Motorenwelle (4) trägt.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009014639A DE102009014639A1 (de) | 2009-03-24 | 2009-03-24 | Kreiselmotorpumpe |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2233744A2 true EP2233744A2 (de) | 2010-09-29 |
EP2233744A3 EP2233744A3 (de) | 2012-10-17 |
EP2233744B1 EP2233744B1 (de) | 2014-02-19 |
Family
ID=41716348
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10000677.4A Active EP2233744B1 (de) | 2009-03-24 | 2010-01-23 | Kreiselmotorpumpe |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2233744B1 (de) |
DE (1) | DE102009014639A1 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102748323A (zh) * | 2012-06-29 | 2012-10-24 | 江苏国泉泵业制造有限公司 | 一种高比转数螺旋离心泵 |
WO2014014898A1 (en) * | 2012-07-16 | 2014-01-23 | Magna Powertrain Of America, Inc. | Canned electric water pump with structural can and rubber outer casing |
EP3025627A1 (de) * | 2014-11-24 | 2016-06-01 | Whirlpool Corporation | Geschirrspülmaschinenablaufanordnungen mit umgossener spirale |
CN108980097A (zh) * | 2018-09-20 | 2018-12-11 | 合肥恒大江海泵业股份有限公司 | 一种污水泵叶轮防松动装置 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2312848A (en) * | 1941-01-07 | 1943-03-02 | Albert R Pezzillo | Motor driven pump unit |
DE1812973U (de) * | 1960-04-14 | 1960-06-09 | Poul Due Jensen | Kreiselpumpe. |
FR2389784B1 (de) * | 1977-05-06 | 1984-02-24 | Siebec Filtres | |
DE8702051U1 (de) * | 1987-02-11 | 1988-06-16 | Robert Bosch Gmbh, 7000 Stuttgart | Einrichtung zum Fördern von Kraftstoff aus einem Vorratstank zu einer Brennkraftmaschine, insbesondere eines Kraftfahrzeuges |
JPH10311290A (ja) * | 1997-05-13 | 1998-11-24 | Japan Servo Co Ltd | キャンドモータポンプとその製造方法 |
JP4250783B2 (ja) * | 1998-04-09 | 2009-04-08 | パナソニック電工株式会社 | 電磁駆動ポンプ |
JP2001099090A (ja) * | 1999-10-04 | 2001-04-10 | Matsushita Electric Ind Co Ltd | ポンプ |
DE102007040461A1 (de) * | 2007-08-28 | 2009-03-05 | Wilo Ag | Kreiselmotorpumpe |
DE102008055613A1 (de) | 2008-11-03 | 2010-05-06 | Wilo Se | Kreiselmotorpumpe |
DE102008055614A1 (de) | 2008-11-03 | 2010-05-06 | Wilo Se | Kreiselmotorpumpe |
-
2009
- 2009-03-24 DE DE102009014639A patent/DE102009014639A1/de not_active Withdrawn
-
2010
- 2010-01-23 EP EP10000677.4A patent/EP2233744B1/de active Active
Non-Patent Citations (1)
Title |
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None |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102748323A (zh) * | 2012-06-29 | 2012-10-24 | 江苏国泉泵业制造有限公司 | 一种高比转数螺旋离心泵 |
WO2014014898A1 (en) * | 2012-07-16 | 2014-01-23 | Magna Powertrain Of America, Inc. | Canned electric water pump with structural can and rubber outer casing |
US9360015B2 (en) | 2012-07-16 | 2016-06-07 | Magna Powertrain Of America, Inc. | Submerged rotor electric water pump with structural wetsleeve |
EP3025627A1 (de) * | 2014-11-24 | 2016-06-01 | Whirlpool Corporation | Geschirrspülmaschinenablaufanordnungen mit umgossener spirale |
US10064537B2 (en) | 2014-11-24 | 2018-09-04 | Whirlpool Corporation | Dishwasher drain assemblies having overmolded volutes |
US10799084B2 (en) | 2014-11-24 | 2020-10-13 | Whirlpool Corporation | Dishwasher drain assemblies having overmolded volutes |
CN108980097A (zh) * | 2018-09-20 | 2018-12-11 | 合肥恒大江海泵业股份有限公司 | 一种污水泵叶轮防松动装置 |
Also Published As
Publication number | Publication date |
---|---|
DE102009014639A1 (de) | 2010-09-30 |
EP2233744B1 (de) | 2014-02-19 |
EP2233744A3 (de) | 2012-10-17 |
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