EP1886026A1 - Water pump - Google Patents

Water pump

Info

Publication number
EP1886026A1
EP1886026A1 EP06829723A EP06829723A EP1886026A1 EP 1886026 A1 EP1886026 A1 EP 1886026A1 EP 06829723 A EP06829723 A EP 06829723A EP 06829723 A EP06829723 A EP 06829723A EP 1886026 A1 EP1886026 A1 EP 1886026A1
Authority
EP
European Patent Office
Prior art keywords
water
impeller
pump
water pump
pump according
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
Application number
EP06829723A
Other languages
German (de)
French (fr)
Other versions
EP1886026B1 (en
Inventor
Andreas Hanke
Dominik Brune
Ingo Gdanitz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oase Pumpen Wuebker Soehne GmbH and Co Maschinenfabrik
Original Assignee
Oase Pumpen Wuebker Soehne GmbH and Co Maschinenfabrik
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Oase Pumpen Wuebker Soehne GmbH and Co Maschinenfabrik filed Critical Oase Pumpen Wuebker Soehne GmbH and Co Maschinenfabrik
Publication of EP1886026A1 publication Critical patent/EP1886026A1/en
Application granted granted Critical
Publication of EP1886026B1 publication Critical patent/EP1886026B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/18—Rotors
    • F04D29/181—Axial flow rotors
    • F04D29/183—Semi axial flow rotors
    • 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
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/2205—Conventional flow pattern
    • F04D29/2216—Shape, geometry
    • 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
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/2238—Special flow patterns
    • F04D29/2255—Special flow patterns flow-channels with a special cross-section contour, e.g. ejecting, throttling or diffusing effect

Definitions

  • the invention relates to a water pump, in particular for use in garden ponds and aquariums, according to the preamble of claim 1.
  • pumps are used in this area, which have a motor-driven radial impeller, so that the water to be pumped is deflected by a deflection angle of 90 °.
  • these pumps meet the requirements prevailing in the respective arrangements requirements, which usually must be a deflection by about 90 °.
  • water pumps generate a fairly high discharge pressure, but have a relatively low flow. If a large delivery volume is to be achieved with such pumps, the required power consumption is very high.
  • the invention is therefore based on the object to provide a water pump with improved efficiency in terms of delivery volume. This object is achieved by a water pump with the features of claim 1.
  • Fig. 1 shows a water pump according to the invention in longitudinal section
  • the illustrated water pump has a pump housing 1 and a motor housing 2 sealed thereto, which together form the overall housing of the pump.
  • the pump housing 1 has a water inlet 3 and a water outlet 4, which is preferably arranged centrally on the upper side of the pump housing.
  • the pump impeller 5 designed as a diagonal impeller is arranged between the water inlet 3 and the water outlet 4. This is shown in Fig. 2 in perspective.
  • the pump impeller 5 has a substantially conical cover plate 6, through which the flow of water, indicated by the arrows 7 is passed diagonally through the pump housing.
  • the pump approximately in 90 ° deflected direction relative to the inlet direction of the water flow 7.
  • the cover plate 6 of the pump impeller. 5 forms a cone angle ⁇ of preferably 80 ° to 100 °.
  • the illustrated embodiment since the front blade edges 8 of the impeller blades 9 in the diagonal direction, parallel to the water flow direction 7 and the surface of the cover plate 6 extend.
  • the impeller blades 9 can be adapted to the contour of the fixed pump housing 1, so that they form a sealing gap 10 there.
  • a narrow sealing gap 10 between the stationary pump housing 1 and the rotating pump impeller 5 can be achieved even with standard tolerances of the components. This leads to a low internal leakage current and thus to an improved hydraulic efficiency.
  • the pump can be - A - compact be constructed when the sealing gap 10 is disposed in the transition region between the water inlet 3 and the water outlet 4.
  • the pump of the illustrated embodiment is optimized in terms of flow behavior and smoothness by the impeller blades 9 have a wing profile and the cover plate 6 of the pump impeller 5 has a sharp rear end 13 has.
  • a good flow distribution in the flow of the pump impeller 5 is also achieved in that the leading edges 14 of the impeller blades 9 are aligned substantially perpendicular to the inflow of the water in the water inlet 3.
  • an opening 15 or a bore is preferably arranged, which serves for cooling and venting purposes.
  • the pump impeller 5 can be made as a plastic injection molded part.
  • a metal ring is injected, which serves as a bearing receptacle.
  • the metal ring 16 is shown in Fig. 2 in an exploded view behind the impeller shaft 17, but arranged in the finished component within the impeller shaft 17.
  • the pump impeller 5 is mounted on an electric motor 18, from which it is driven in rotation.
  • the water pump according to the invention is by their compact design, their high flow rate and their low power consumption outstanding as a circulating pump especially for applications in which a continuous operation is required. Compared to conventional pumps can be achieved as a significant energy savings.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Medicines Containing Plant Substances (AREA)

Abstract

The water pump, for garden ponds and aquaria, has a pump housing (1) with a water inflow (3) and outflow (4) and a diagonal powered impeller (5) with a conical covering disk (6). The water inflow and outflow are at right angles to each other. The leading edges (8) of the impeller paddles (9) are aligned at a diagonal, parallel to the water flow, forming a sealing gap (10) with the inner contour of the pump housing. The impeller is of an injection molded plastics with at least one metal ring.

Description

Wasserpumpe water pump
Die Erfindung betrifft eine Wasserpumpe insbesondere für den Einsatz im Gartenteich und Aquaristikbereich, nach dem Oberbegriff des Anspruchs 1.The invention relates to a water pump, in particular for use in garden ponds and aquariums, according to the preamble of claim 1.
In der Praxis sind in diesem Bereich Pumpen gebräuchlich, die ein motorisch angetriebenes Radial-Laufrad aufweisen, so daß das zu pumpende Wasser um einen Umlenkwinkel von 90° umgelenkt wird. Damit werden diese Pumpen den in den entsprechenden Anordnungen herrschenden Anforderungen gerecht, wonach in der Regel eine Umlenkung um etwa 90° erfolgen muß. Derartige Wasserpumpen erzeugen zwar einen recht hohen Förderdruck, haben aber ein verhältnismäßig geringes Fördervolumen. Soll mit solchen Pumpen ein großes Fördervolumen erreicht werden, ist die erforderliche Leistungsaufnahme sehr hoch.In practice, pumps are used in this area, which have a motor-driven radial impeller, so that the water to be pumped is deflected by a deflection angle of 90 °. Thus, these pumps meet the requirements prevailing in the respective arrangements requirements, which usually must be a deflection by about 90 °. Although such water pumps generate a fairly high discharge pressure, but have a relatively low flow. If a large delivery volume is to be achieved with such pumps, the required power consumption is very high.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Wasserpumpe mit verbesserter Effizienz hinsichtlich des Fördervolumens zu schaffen. Diese Aufgabe wird erfindungsgemäß durch eine Wasserpumpe mit den Merkmalen des Anspruchs 1 gelöst.The invention is therefore based on the object to provide a water pump with improved efficiency in terms of delivery volume. This object is achieved by a water pump with the features of claim 1.
Durch den Einsatz eines Pumpenlaufrades, das als Diagonal-Laufrad mit einer im wesentlichen kegeligen Deckscheibe aufgebildet ist, wird die Strömung diagonal durch das Laufrad geführt und im Vergleich zu einem Radial-Laufrad um einen geringeren Winkel umgelenkt. Bei der Förderung großer Wassermengen bleiben dadurch die Umlenkverluste kleiner und der Wirkungsgrad wird günstiger. So ausge- staltete Pumpen haben den Vorteil, daß bei geringerem Druck mehr Wasservolumen gefördert wird. Vorzugsweise werden derartige Pumpen daher in Filteranlagen eingesetzt, wo wenig Druck, jedoch ein hoher Volumenstrom nötig ist. Durch den verbesserten Wirkungsgrad nimmt die erfindungsgemäße Pumpe weitaus weniger Leistung auf als vorbekannte Pumpen mit einem Radial-Laufrad. Auch läßt sich die erfindungsgemäße Pumpe mit ihrer großen Volumeneffizienz wesentlich kompakter bauen als Pumpen mit herkömmlichen Laufrädern. Um den gleichen Volumenstrom zu erzielen, müßte der Durchmesser eines herkömmlichen Laufrades um den Faktor 1 ,5 größer sein. Die kompakte Bauform der erfindungsgemäßen Pumpe ermöglicht auch eine besonders kostengünstige Herstellung, da nur verhältnismäßig kleine Werkzeuge, insbesondere Kunststoffspritz-Werkzeuge, benötigt werden.Through the use of a pump impeller, which is designed as a diagonal impeller with a substantially conical cover plate, the flow is guided diagonally through the impeller and deflected compared to a radial impeller by a smaller angle. In the promotion of large amounts of water thereby the deflection losses remain smaller and the efficiency is cheaper. So ex- stalt pumps have the advantage that at lower pressure more water volume is promoted. Preferably, such pumps are therefore used in filter systems where little pressure, but a high flow rate is necessary. Due to the improved efficiency of the pump of the invention takes much less power than previously known pumps with a radial impeller. Also, the pump of the invention with its high volume efficiency can build much more compact than pumps with conventional wheels. To achieve the same volume flow, the diameter of a conventional impeller would have to be larger by a factor of 1.5. The compact design of the pump according to the invention also enables a particularly cost-effective production, since only relatively small tools, in particular plastic injection tools, are needed.
Weitere Vorteile und Einzelheiten ergeben sich aus den Unteransprüchen und einer in den Zeichnungen dargestellten Ausführungsform, die im folgenden erläutert wird; es zeigen:Further advantages and details emerge from the dependent claims and an embodiment shown in the drawings, which will be explained below; show it:
Fig. 1 eine erfindungsgemäße Wasserpumpe im Längsschnitt undFig. 1 shows a water pump according to the invention in longitudinal section and
Fig. 2 das Pumpenlaufrad der Pumpe aus Fig. 1 in perspektivischer Sprengdarstellung.Fig. 2, the pump impeller of the pump of Fig. 1 in a perspective exploded view.
Die abgebildete Wasserpumpe hat ein Pumpengehäuse 1 und ein mit diesem abgedichtet verbundenes Motorgehäuse 2, die miteinander das Gesamtgehäuse der Pumpe ausbilden. Das Pumpengehäuse 1 verfügt über einen Wassereinlaß 3 und einen Wasserauslaß 4, der vorzugsweise zentral an der Oberseite des Pumpengehäuses angeordnet ist. Im Inneren des Pumpengehäuses 1 ist zwischen Wassereinlaß 3 und Wasserauslaß 4 das als Diagonal-Laufrad ausgebildete Pumpenlaufrad 5 angeordnet. Dieses ist in Fig. 2 perspektivisch dargestellt.The illustrated water pump has a pump housing 1 and a motor housing 2 sealed thereto, which together form the overall housing of the pump. The pump housing 1 has a water inlet 3 and a water outlet 4, which is preferably arranged centrally on the upper side of the pump housing. Inside the pump housing 1, the pump impeller 5 designed as a diagonal impeller is arranged between the water inlet 3 and the water outlet 4. This is shown in Fig. 2 in perspective.
Das Pumpenlaufrad 5 hat erfindungsgemäß eine im wesentlichen kegelige Deckscheibe 6, durch die der Wasserstrom, angedeutet durch die Pfeile 7 diagonal durch das Pumpengehäuse geleitet wird. In Zusammenwirkung mit der Anordnung und Form des Wassereinlasses 3 und des Wasserauslasses 4, die bevorzugt im wesentlichen senkrecht zueinander stehen, verläßt der Wasserstrom 7 die Pumpe in etwa in um 90° umgelenkter Richtung gegenüber der Eintrittsrichtung des Wasserstroms 7. Die Deckscheibe 6 des Pumpenlaufrads 5 bildet einen Kegelwinkel α von vorzugsweise 80° bis 100° aus. Dadurch wird eine optimale Strömungsumlenkung erreicht, und die Strömungsverluste werden minimiert.The pump impeller 5 according to the invention has a substantially conical cover plate 6, through which the flow of water, indicated by the arrows 7 is passed diagonally through the pump housing. In cooperation with the arrangement and shape of the water inlet 3 and the water outlet 4, which are preferably substantially perpendicular to each other leaves the water flow 7, the pump approximately in 90 ° deflected direction relative to the inlet direction of the water flow 7. The cover plate 6 of the pump impeller. 5 forms a cone angle α of preferably 80 ° to 100 °. As a result, an optimal flow deflection is achieved, and the flow losses are minimized.
Besonders vorteilhaft ist die dargestellte Ausführungsform, da die vorderen Schaufelkanten 8 der Laufradschaufeln 9 in diagonaler Richtung, parallel zur Wasserstromrichtung 7 und zur Oberfläche der Deckscheibe 6 verlaufen. Dadurch können die Laufradschaufeln 9 an die Kontur des feststehenden Pumpengehäuses 1 angepaßt werden, so daß sie dort einen Dichtungsspalt 10 ausbilden. Bei dieser besonderen Bauform läßt sich auch mit Standard-Toleranzen der Bauteile ein enger Dichtspalt 10 zwischen dem feststehenden Pumpengehäuse 1 und dem rotierenden Pumpenlaufrad 5 erreichen. Dies führt zu einem geringen inneren Leckstrom und damit zu einem verbesserten hydraulischen Wirkungsgrad. Die Pumpe kann beson- - A - ders kompakt konstruiert werden, wenn der Dichtungsspalt 10 im Übergangsbereich zwischen dem Wassereinlaß 3 und dem Wasserauslaß 4 angeordnet ist.Particularly advantageous is the illustrated embodiment, since the front blade edges 8 of the impeller blades 9 in the diagonal direction, parallel to the water flow direction 7 and the surface of the cover plate 6 extend. As a result, the impeller blades 9 can be adapted to the contour of the fixed pump housing 1, so that they form a sealing gap 10 there. In this particular design, a narrow sealing gap 10 between the stationary pump housing 1 and the rotating pump impeller 5 can be achieved even with standard tolerances of the components. This leads to a low internal leakage current and thus to an improved hydraulic efficiency. The pump can be - A - compact be constructed when the sealing gap 10 is disposed in the transition region between the water inlet 3 and the water outlet 4.
Die Pumpe der dargestellten Ausführungsform ist hinsichtlich ihres Strömungsverhaltens und ihrer Laufruhe optimiert, indem die Laufradschaufeln 9 ein Tragflächenprofil aufweisen und die Deckscheibe 6 des Pumpenlaufrad 5 einen scharfkantigen hinteren Abschluß 13 hat. Eine gute Strömungsaufteilung bei Anströmung des Pumpenlaufrads 5 wird außerdem dadurch erreicht, daß die Anströmkanten 14 der Laufradschaufeln 9 im wesentlichen senkrecht zur Einströmrichtung des Wassers im Wassereinlaß 3 ausgerichtet sind.The pump of the illustrated embodiment is optimized in terms of flow behavior and smoothness by the impeller blades 9 have a wing profile and the cover plate 6 of the pump impeller 5 has a sharp rear end 13 has. A good flow distribution in the flow of the pump impeller 5 is also achieved in that the leading edges 14 of the impeller blades 9 are aligned substantially perpendicular to the inflow of the water in the water inlet 3.
Mittig in der Kegelspitze der Deckscheibe 6 des Pumpenlaufrads 5 ist vorzugsweise ein Durchbruch 15 bzw. eine Bohrung angeordnet, die zu Kühlungs- und Entlüftungszwecken dient.Centrally in the apex of the cover plate 6 of the pump impeller 5, an opening 15 or a bore is preferably arranged, which serves for cooling and venting purposes.
Besonders kostengünstig kann das Pumpenlaufrad 5 als Kunststoffspritzteil hergestellt werden. Um den Verschleiß und die Gleiteigenschaften zu optimieren, ist dabei vorzugsweise ein Metallring mit eingespritzt, der als Lageraufnahme dient. Der Metallring 16 ist in Fig. 2 in Explosionsdarstellung hinter dem Laufradschaft 17 gezeigt, in dem fertigen Bauteil jedoch innerhalb des Laufradschaftes 17 angeordnet. Über den Metallring 16 lagert das Pumpenlaufrad 5 an einem Elektromotor 18, von dem es rotierend angetrieben wird. Die erfindungsgemäße Wasserpumpe eignet sich durch ihre kompakte Bauweise, ihre hohe Förderleistung und ihre dabei geringe Leistungsaufnahme hervorragend als Umwälzpumpe vor allem für Anwendungsbereiche, in denen ein Dauerbetrieb erforderlich ist. Gegenüber herkömmlichen Pumpen kann so eine erhebliche Energieeinsparung erreicht werden. Particularly cost, the pump impeller 5 can be made as a plastic injection molded part. In order to optimize the wear and the sliding properties, preferably a metal ring is injected, which serves as a bearing receptacle. The metal ring 16 is shown in Fig. 2 in an exploded view behind the impeller shaft 17, but arranged in the finished component within the impeller shaft 17. Via the metal ring 16, the pump impeller 5 is mounted on an electric motor 18, from which it is driven in rotation. The water pump according to the invention is by their compact design, their high flow rate and their low power consumption outstanding as a circulating pump especially for applications in which a continuous operation is required. Compared to conventional pumps can be achieved as a significant energy savings.

Claims

Patentansprüche claims
1. Wasserpumpe mit einem einen Wassereinlaß (3) und einen Wasserauslaß (4) aufweisenden Pumpengehäuse (1) in dem ein angetriebenes Pumpenlaufrad (5) angeordnet ist, dadurch gekennzeichnet, daß das Pumpenlaufrad (5) als Diagonal- Laufrad mit einer im wesentlichen kegeligen Deckscheibe (6) ausgebildet ist.1. Water pump with a water inlet (3) and a water outlet (4) having pump housing (1) in which a driven pump impeller (5) is arranged, characterized in that the pump impeller (5) as a diagonal impeller with a substantially conical Cover disc (6) is formed.
2. Wasserpumpe nach Anspruch 1 , dadurch gekennzeichnet, daß Wassereinlaß (3) und Wasserauslaß (4) so angeordnet sind, daß die Wassereinstömrichtung und die Wasserausströmrichtung im wesentlichen senkrecht zueinander sind.2. Water pump according to claim 1, characterized in that the water inlet (3) and water outlet (4) are arranged so that the Wassereinstömrichtung and the Wasserausströmrichtung are substantially perpendicular to each other.
3. Wasserpumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die vorderen Schaufelkanten (8) der Laufradschaufeln (9) in diagonaler Richtung verlaufen.3. Water pump according to one of the preceding claims, characterized in that the front blade edges (8) of the impeller blades (9) extend in the diagonal direction.
4. Wasserpumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die vorderen Schaufelkanten (8) der Laufradschaufeln (9) parallel zur Wasserstömung verlaufen.4. Water pump according to one of the preceding claims, characterized in that the front blade edges (8) of the impeller blades (9) extend parallel to the water flow.
5. Wasserpumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die vorderen Schaufelkanten (8) der Laufradschaufeln (9) mit der Innenkontur des Pumpengehäuses (1) einen Dichtungsspalt (10) ausbilden. 5. Water pump according to one of the preceding claims, characterized in that the front blade edges (8) of the impeller blades (9) with the inner contour of the pump housing (1) form a sealing gap (10).
6. Wasserpumpe nach Anspruch 5, dadurch gekennzeichnet, daß der Dichtungsspalt (10) im Übergangsbereich zwischen Wassereinlaß (3) und Wasserauslaß (4) angeordnet ist.6. Water pump according to claim 5, characterized in that the sealing gap (10) in the transition region between the water inlet (3) and the water outlet (4) is arranged.
7. Wasserpumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Laufradschaufeln (9) ein Tragflächenprofil aufweisen7. Water pump according to one of the preceding claims, characterized in that the impeller blades (9) have a wing profile
8. Wasserpumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Deckscheibe (6) des Pumpenlaufrads (5) einen scharfkantigen hinteren Abschluß (13) aufweist.8. Water pump according to one of the preceding claims, characterized in that the cover plate (6) of the pump impeller (5) has a sharp-edged rear end (13).
9. Wasserpumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Deckscheibe (6) des Pumpenlaufrads (5) in der Kegelspitze einen Durchbruch (15) ausweist.9. Water pump according to one of the preceding claims, characterized in that the cover plate (6) of the pump impeller (5) in the apex of an opening (15) identifies.
10. Wasserpumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Deckscheibe (6) des Pumpenlaufrads (5) einen Kegelwinkel (α) von 80° bis 100° aufweist.10. Water pump according to one of the preceding claims, characterized in that the cover plate (6) of the pump impeller (5) has a cone angle (α) of 80 ° to 100 °.
11. Wasserpumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Pumpenlaufrad (5) ein Kunststoffspritzteil ist und zumindest einen eingespritzten Ring (16) aus einem anderen Werkstoff, insbesondere Metall, aufweist. 11. Water pump according to one of the preceding claims, characterized in that the pump impeller (5) is a plastic injection-molded part and at least one injected ring (16) made of a different material, in particular metal.
12. Wasserpumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Wasserauslaß (4) im wesentlichen zentral an der Oberseite des Pumpengehäuses (1) angeordnet ist. 12. Water pump according to one of the preceding claims, characterized in that the water outlet (4) is arranged substantially centrally on the upper side of the pump housing (1).
EP06829723A 2006-02-27 2006-12-19 Water pump Active EP1886026B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006009495A DE102006009495A1 (en) 2006-02-27 2006-02-27 Water pump, for garden ponds and aquaria, has a diagonal impeller with the water inflow and outflow at right angles to each other in the pump housing
PCT/EP2006/012214 WO2007098800A1 (en) 2006-02-27 2006-12-19 Water pump

Publications (2)

Publication Number Publication Date
EP1886026A1 true EP1886026A1 (en) 2008-02-13
EP1886026B1 EP1886026B1 (en) 2009-12-23

Family

ID=37825063

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06829723A Active EP1886026B1 (en) 2006-02-27 2006-12-19 Water pump

Country Status (7)

Country Link
US (1) US20090004020A1 (en)
EP (1) EP1886026B1 (en)
CN (1) CN101208519B (en)
AT (1) ATE453052T1 (en)
CA (1) CA2612471A1 (en)
DE (2) DE102006009495A1 (en)
WO (1) WO2007098800A1 (en)

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FR3002271A1 (en) * 2013-02-21 2014-08-22 Thy Engineering TURBINE, COMPRESSOR OR PUMP WHEEL.
CN105102820A (en) * 2013-04-10 2015-11-25 伟尔矿物澳大利亚私人有限公司 Pump impeller
CN105971927B (en) * 2016-07-05 2020-10-16 汉宇集团股份有限公司 Water pump impeller and water pump
CN106015083B (en) * 2016-07-05 2019-12-31 汉宇集团股份有限公司 Mixed flow type water pump impeller and water pump

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Also Published As

Publication number Publication date
CN101208519A (en) 2008-06-25
CA2612471A1 (en) 2007-09-07
EP1886026B1 (en) 2009-12-23
DE102006009495A1 (en) 2007-08-30
US20090004020A1 (en) 2009-01-01
WO2007098800A1 (en) 2007-09-07
DE502006005730D1 (en) 2010-02-04
ATE453052T1 (en) 2010-01-15
CN101208519B (en) 2011-12-14

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