EP2098732A1 - Agrégat de pompe pouvant flotter - Google Patents

Agrégat de pompe pouvant flotter Download PDF

Info

Publication number
EP2098732A1
EP2098732A1 EP08004212A EP08004212A EP2098732A1 EP 2098732 A1 EP2098732 A1 EP 2098732A1 EP 08004212 A EP08004212 A EP 08004212A EP 08004212 A EP08004212 A EP 08004212A EP 2098732 A1 EP2098732 A1 EP 2098732A1
Authority
EP
European Patent Office
Prior art keywords
pump
unit housing
housing
pump unit
unit 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.)
Withdrawn
Application number
EP08004212A
Other languages
German (de)
English (en)
Inventor
Michele Leone
Riccardo Dal Canto
Susanne Wiatr Borg
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.)
Grundfos Management AS
Original Assignee
Grundfos Management AS
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 Grundfos Management AS filed Critical Grundfos Management AS
Priority to EP08004212A priority Critical patent/EP2098732A1/fr
Priority to US12/920,466 priority patent/US20110123357A1/en
Priority to PCT/EP2009/001261 priority patent/WO2009109305A2/fr
Priority to CN2009801080706A priority patent/CN101960147B/zh
Publication of EP2098732A1 publication Critical patent/EP2098732A1/fr
Withdrawn legal-status Critical Current

Links

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
    • 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
    • F04D13/066—Floating-units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
    • F04D15/0209—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid
    • F04D15/0218—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid the condition being a liquid level or a lack of liquid supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
    • F04D15/0245—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the pump
    • F04D15/0272—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the pump the condition being wear or a position
    • 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

Definitions

  • the invention relates to a buoyant pump unit with the features specified in the preamble of claim 1.
  • the state of the art includes buoyant pumps which suck liquid or water from these containers or bodies of water at the liquid surface of containers and waters.
  • the use of such pumps proves to be problematic if the containers or bodies of water are formed closed and the liquids to be sucked are mixed with solid particles. This is due to the fact that these pumps sink with the liquid or water level falling through the pump work into a region of the containers or bodies near the bottom, in which the proportion of solid particles is generally considerably increased. This increases the risk that solids penetrate through the inlet openings in the pump and clog them, which is possibly associated with repairs, or at least consuming cleaning work.
  • buoyant pump unit which is suitable for use in liquids mixed with solid particles, wherein the risk of clogging of the pump unit is at least significantly reduced.
  • the pump unit according to the invention is buoyant and has an electric drive motor, a centrifugal pump driven therefrom, and an aggregate housing accommodating the drive motor and the centrifugal pump.
  • the pump unit has at least one in the floating state under the liquid surface arranged inlet opening and at least one outlet opening.
  • the unit housing is designed and arranged so that it changes its orientation relative to the floating position upon reaching a footprint, wherein position-controlled switching means are provided within the unit housing.
  • the invention is based on the idea of designing and arranging the unit housing of the pump unit in such a way that, when it reaches a contact area, for example a floor of a container or the bottom of a body of water, because of a sinking liquid level by the pumping work, it will not find a firm footing there, that is, can not stand there in a stable equilibrium, and therefore changes its orientation with further sinking liquid level, the switching means with the alignment change of the unit housing also change their position and preferably turn off the pump unit or switch to a state in which such solid particles are stopped or if necessary, can also be supported.
  • the alignment changes of the unit housing and the switching means therein are typically done by tilting the unit housing from its floating position.
  • the at least one inlet opening of the pump unit is expediently arranged on the unit housing in such a way that, when the unit housing reaches the contact area, it is in the liquid above a sediment to be expected in a container or body of water is arranged from solid particles.
  • the centrifugal pump sucks excessively solid particles, which could possibly clog the pump unit.
  • Another advantage of the pump unit according to the invention is the fact that this embodiment prevents dry running of the centrifugal pump.
  • the pump unit according to the invention has a very high operational reliability.
  • the aggregate housing In order that the aggregate housing can change its orientation when it reaches a contact surface with respect to its floating position, the aggregate housing is preferably designed such that it can tilt about an axis arranged in the contact area between the unit housing and the contact surface transversely to the direction of application of the liquid. After tilting, the aggregate housing on the footprint can come in a stable tilted position for surface contact.
  • the unit housing advantageously has a tilting surface on a lower part in the floating state.
  • the tilting surface in the sense of the invention is to be understood as meaning the surface with which the aggregate housing rests on the contact surface after tilting, the term tilting surface not being limited to a physically formed surface on the aggregate housing, but also encompassing such imaginary surfaces as those of FIG at least two spaced on the outside of the unit housing points on which the unit housing rests in a tilted position on the footprint formed.
  • the unit housing tapers in a lower portion in the floating state downwards. That is, the unit housing runs in this lower section down towards pointed.
  • a lower portion of the unit housing for example, be cone-shaped or wedge-shaped, with the tip of the thus formed Conical or wedge is conveniently the part of the aggregate housing, the first reaches a footprint in a container or body of water with sinking liquid level. Such a point must be sufficiently blunt to prevent penetration into the footprint, it must be sufficiently pointed to ensure tilting. The tip then forms a tilt axis or part of a tilt axis about which the unit housing can be tilted.
  • the outer side of the tapering lower portion of the unit housing can in this case form the tilting surface on which the unit housing rests on the contact surface after tilting.
  • the lower section of the unit housing expediently tapers such that the unit housing may possibly not remain stuck in a muddy ground located on the container or water bottom in the floating position and in this way can not change its orientation.
  • the lower end of this portion of the unit housing is advantageously flattened or rounded.
  • a preferred development of the pump unit according to the invention provides to form the underside of the unit housing convexly curved.
  • the aggregate housing may be e.g. be tapered at the bottom in the floating position section and tilted around the vertex of its curvature.
  • the outside of the arched area may form part of the tipping area that bears on a footprint.
  • a preferably downwardly directed projection may be formed on the underside of the unit housing.
  • This projection is expediently arranged and designed in such a way that it stops at a pump unit sinking in a container or body of water first reaches a footprint formed there, the aggregate housing then tilts around the free end of this projection during further lowering.
  • the tilting surface of the unit housing is typically formed by an imaginary surface on which the free end of the projection and at least one further point spaced from the projection lie on the outside of the unit housing.
  • the projection on the underside of the unit housing is arranged such that it is in the floating position of the pump unit in the direction of the liquid surface spaced from the center of gravity of the pump unit, so that the weight of the pump unit, when the projection has reached the footprint, a tilting moment the pump unit exerts.
  • the unit housing in this embodiment has a clearly defined tilting surface.
  • a tilt switch is preferably provided, which is designed and arranged such that it switches off the centrifugal pump at a deviating from the orientation in the floating state alignment of the unit housing.
  • the tilt switch may comprise a movably mounted in the switch member, wherein the component is designed and arranged such that it sets the inclination switch in the floating position of the pump unit in a the centrifugal pump einclude position and at a change in alignment of the unit housing its position and thereby the tilt switch switches into a position switching off the centrifugal pump.
  • the component movably arranged in the inclination switch it is advantageously rolling and preferably designed as a ball.
  • the unit housing in a floating state above the liquid surface arranged region at least one perpendicular to the liquid surface aligned outlet opening.
  • This outlet opening may be formed on a connection which is provided for fastening a hose line, with which the liquid can be discharged from a container or body of water.
  • the pump unit according to the invention with an outlet opening arranged in this way can for example also form a fountain.
  • the pump unit can be used floating in a basin or a pond and with the centrifugal pump turned on an emerging from the outlet water jet, which extends perpendicular to the water surface, generate.
  • the outlet opening is formed at another point of the unit housing, possibly with a different orientation.
  • the pump unit according to the invention may advantageously have at least one outlet opening, which is aligned in the floating state substantially parallel or obliquely to the liquid surface.
  • the unit housing on at least two outlet openings, wherein either one of the two outlet openings with the pressure side of the centrifugal pump is line connected. Accordingly, means are provided with which a flow path from the outlet of the pump to an outlet opening is closed, while the flow path is opened to the other outlet opening.
  • a flow path from the outlet of the pump to an outlet opening is closed, while the flow path is opened to the other outlet opening.
  • 3/2 - way valve can be used.
  • a part of the unit housing forming the tilting surface is preferably removable formed and covers a formed on the pump unit footprint.
  • a fastening means can advantageously be formed on the lower part of the unit housing in the floating state.
  • the attachment means may be e.g. to act a tab or eyelet on which, for example, a ground anchor can be attached.
  • the pump unit has handling handles. These handling handles may be located on the outside of the power pack housing or from the power pack itself, e.g. be formed in the form of formed on the unit housing undercuts.
  • the pump unit shown in the drawing has an aggregate housing 2.
  • the pump unit is designed buoyant, wherein in the floating state, an aggregate housing part 4a is arranged largely above a liquid surface 6, while an aggregate housing part 4b is completely immersed in the liquid.
  • buoyancy chambers 7a, 7b filled with air are formed in the unit housing part 4a ( Fig. 5 ).
  • the weight distribution in the pump unit is such that a longitudinal axis A of the unit housing 2 in the floating position of the pump unit is oriented substantially perpendicular to the liquid surface 6.
  • the aggregate housing parts 4a and 4b are formed substantially rotationally symmetrical to the longitudinal axis A.
  • the unit housing 4a has a larger outer diameter than the unit housing part 4b, wherein an undercut 9 is formed on the unit housing part 4a at its area protruding beyond the outer diameter of the unit housing part 4b ( Fig. 4 ). In this undercut, distributed over the circumference, handles 11 are arranged for handling the pump unit.
  • inlet openings 8 are arranged distributed over the entire circumference of the unit housing part 4b in two rows spaced from one another in the direction of the longitudinal axis A.
  • two outlet ports 10 and 12 are formed, which form the outlet openings of the pump unit.
  • the outlet port 10 extends on the unit housing part 4a concentric with the longitudinal axis A to the outside, while the outlet 12 extends radially to this longitudinal axis A in a region of the aggregate housing part 4a to the outside, which lies in the floating state of the pump unit below the liquid surface 6.
  • the outlet ports 10 and 12 are each provided with external threads, so that hose lines can optionally be connected via standard couplings to these outlet.
  • the outlet opening of the outlet nozzle 10 is closed by a cap 14 screwed onto the outlet nozzle 10.
  • the outlet opening of the outlet nozzle 12 can also be closed with this closure cap 14.
  • a driven by an electric drive motor 16 centrifugal pump with an impeller 20 is arranged in the unit housing part 4b.
  • an electrical connection 21 is arranged on the outside of the unit housing part 4b, to which a power supply and control cable can be connected.
  • centrifugal pump liquid can be sucked from a container or body of water through the inlet openings 8 and from there via a marked with a direction arrow B flow path to the pump inlet.
  • a part of the flow path on the output side of the centrifugal pump is formed by a rotary valve 20 mainly arranged in the unit housing part 4a.
  • the rotary valve 20 has a hollow cylindrical rotary valve 22 through which a first recess 24 and a second recess 26 have on its peripheral side.
  • the position of the recess 24 corresponds to the flow channel through the outlet port 12, while the position of the recess 26 corresponds to the position of a leading to the outlet port 10 flow channel.
  • the rotary valve is rotatably mounted in the unit housing part 4a.
  • the recesses 24 and 26 are arranged offset in the circumferential direction at an angle of 90 ° to each other.
  • the rotary valve 20 can be rotated into a first position, in which the recess 24 releases a flow path into the outlet connection 12, but at the same time the flow path to the outlet connection 10 is closed.
  • the flow path in this position of the rotary valve from the outlet of the centrifugal pump to the outlet opening formed on the outlet connection 12 is in Fig. 3 indicated by the directional arrow C.
  • the flow path to the outlet port 12 is closed and the flow path to the outlet port 10 is released.
  • a tilt switch In the floating position of the pump unit above the electric drive motor 16, a tilt switch is arranged, which has a cup-shaped running surface 30, a ball 32 and a microswitch 34.
  • the microswitch 34 is arranged in the floating position of the pump unit below a formed on the tread 30 recess.
  • the metallic ball 32 In the floating position, the metallic ball 32, which may be formed as a solid or hollow sphere, above the recess of the tread 30 and presses on the micro switch 34, which is thereby placed in a switching position in which the centrifugal pump is turned on.
  • the ball 32 rolls on the running surface 30 away from the recess to the outside and accordingly no longer presses the microswitch 34, which thereby switches into a position switching off the centrifugal pump.
  • the aggregate housing part 4b tapers in the floating position downwards initially conical and then passes into a lower portion 36, which is dome-shaped convex convex to the outside.
  • a projection 38 to the outside On the outside of this portion 36 of the unit housing part 4b extends concentrically to the longitudinal axis A of the unit housing 2, a projection 38 to the outside.
  • a recess 40 is formed, which forms a tab.
  • This tab forms a fastener with which the floating pump unit can be attached by means of a rope or a chain to the bottom of a container or body of water, so that it can not change its position in the floating state.
  • the aggregate housing part 4a distributed on its outer circumference also has a plurality of fastening tabs 42, by means of which the pump unit can also be fixed by ropes or wires.
  • the operation of the pump set is as follows:
  • the pump unit floats in a container or body of water in a floating position, in which the longitudinal axis A of the unit housing 2 is aligned perpendicular to the liquid surface 6.
  • the ball 32 of the inclination switch is located directly above the formed on the tread 30 recess and presses the microswitch 34 disposed below the recess in a switching position einclude the centrifugal pump. Consequently, the centrifugal pump promotes liquid from the container or body of water.
  • the liquid surface 6 of the container or body of water and thus the pump unit sinks until the projection 38 arranged on the lower portion 36 of the unit housing part 4b contacts a contact surface 44 formed at the bottom of the container or body of water.
  • the pump unit finds no firm footing on the contact surface 44 and tilts over an edge of the projection 38 transversely to the longitudinal axis A of the unit housing 2 to the side ( 8 and 9 )
  • the edge of the projection 38 and a portion of the lower portion 36 of the unit housing part 4b form a tilting surface on which the pump unit rests on the contact surface 44.
  • the ball 32 of the tilt switch moves on the tread 30 away from the recess formed thereon outwards and so no longer contacts the microswitch 34, which then turns off the centrifugal pump.
  • the centrifugal pump is turned off by the tilt switch is largely determined by the design of the tilt switch.
  • the inclination switch can be designed such that the ball 32 leaves its microswitch 34 contacting position only at a larger angle of inclination ⁇ and thus the centrifugal pump at a lower liquid level above the footprint 44 turns off ( Fig. 9 ).
  • the lower portion 36 of the unit housing part 4b is removable after releasing a latching connection via a pushbutton 46, wherein after removal it forms a substantially formed on the unit housing part 4b plane footing 48 releases, which is aligned normal to the longitudinal axis A of the unit housing ( Fig. 6 ).
  • this flat base 48 the pump unit can stand on a footprint 44 without tipping over ( Fig. 7 ) and thus without switching off.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP08004212A 2008-03-07 2008-03-07 Agrégat de pompe pouvant flotter Withdrawn EP2098732A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP08004212A EP2098732A1 (fr) 2008-03-07 2008-03-07 Agrégat de pompe pouvant flotter
US12/920,466 US20110123357A1 (en) 2008-03-07 2009-02-21 Floatable pump unit
PCT/EP2009/001261 WO2009109305A2 (fr) 2008-03-07 2009-02-21 Groupe motopompe flottant
CN2009801080706A CN101960147B (zh) 2008-03-07 2009-02-21 浮动泵机组

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08004212A EP2098732A1 (fr) 2008-03-07 2008-03-07 Agrégat de pompe pouvant flotter

Publications (1)

Publication Number Publication Date
EP2098732A1 true EP2098732A1 (fr) 2009-09-09

Family

ID=39712510

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08004212A Withdrawn EP2098732A1 (fr) 2008-03-07 2008-03-07 Agrégat de pompe pouvant flotter

Country Status (4)

Country Link
US (1) US20110123357A1 (fr)
EP (1) EP2098732A1 (fr)
CN (1) CN101960147B (fr)
WO (1) WO2009109305A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102852817A (zh) * 2011-06-27 2013-01-02 王喜冬 硬质合金可空转可串联水陆两用矿用立泵

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11015359B2 (en) * 2013-05-23 2021-05-25 Scott Tarvyd MacDonald Swimming pool water exchange device
JP6285117B2 (ja) * 2013-07-10 2018-02-28 株式会社荏原製作所 可搬式排水ポンプ
US9714665B2 (en) * 2013-12-13 2017-07-25 Asia Connection LLC Pool pump with multiple outlets
US10907638B2 (en) 2015-07-27 2021-02-02 Wayne/Scott Fetzer Company Multi-outlet utility pump
US20170122325A1 (en) * 2015-11-03 2017-05-04 Black & Decker Inc. Cordless Fluid Pump
USD823345S1 (en) 2015-12-17 2018-07-17 Wayne/Scott Fetzer Company Pump
CN106089787A (zh) * 2016-06-28 2016-11-09 四川中以润华灌溉科技有限公司 一种底阀装置
US11326608B2 (en) * 2017-08-14 2022-05-10 Wayne/Scott Fetzer Company Thermally controlled utility pump and methods relating to same
US11592033B2 (en) 2019-09-30 2023-02-28 Wayne/Scott Fetzer Company Pump assembly and related methods
CN111456933B (zh) * 2020-05-08 2022-03-08 河海大学常州校区 一种汽车电子水泵空转状态检测方法
USD942512S1 (en) 2020-09-29 2022-02-01 Wayne/Scott Fetzer Company Pump part

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4778957A (en) * 1987-06-05 1988-10-18 Raritan Engineering Co., Inc. Mercury float switch
EP1321676A1 (fr) * 2001-12-15 2003-06-25 FE Petro, Inc. Motopompe submersible pour les stations service
US20040018094A1 (en) * 2002-07-29 2004-01-29 Rossman Christopher A. Bilge pump seal and float actuator
DE202006005866U1 (de) * 2006-04-06 2006-08-31 Alfred Kärcher Gmbh & Co. Kg Tauchpumpe
US7264449B1 (en) * 2002-03-07 2007-09-04 Little Giant Pump Company Automatic liquid collection and disposal assembly

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1909578A (en) * 1930-02-05 1933-05-16 Octrooi Mij Hermes Nv Pump
CN2118844U (zh) * 1992-04-29 1992-10-14 安徽省无为电机厂 漂浮电泵
US5625344A (en) * 1994-02-25 1997-04-29 Shukla; Ashok K. Low fluid level warning device
FR2753236B1 (fr) * 1996-09-10 1998-12-04 Conseilray Sa Pompe peristaltique miniature
ATE261066T1 (de) * 1998-12-19 2004-03-15 Gardena Kress & Kastner Gmbh Teicheinsatz mit pumpe
US20080260557A1 (en) * 2007-04-23 2008-10-23 Austin Timothy L Floating pump for irrigation and other applications

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4778957A (en) * 1987-06-05 1988-10-18 Raritan Engineering Co., Inc. Mercury float switch
EP1321676A1 (fr) * 2001-12-15 2003-06-25 FE Petro, Inc. Motopompe submersible pour les stations service
US7264449B1 (en) * 2002-03-07 2007-09-04 Little Giant Pump Company Automatic liquid collection and disposal assembly
US20040018094A1 (en) * 2002-07-29 2004-01-29 Rossman Christopher A. Bilge pump seal and float actuator
DE202006005866U1 (de) * 2006-04-06 2006-08-31 Alfred Kärcher Gmbh & Co. Kg Tauchpumpe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102852817A (zh) * 2011-06-27 2013-01-02 王喜冬 硬质合金可空转可串联水陆两用矿用立泵
CN102852817B (zh) * 2011-06-27 2016-01-27 王喜冬 硬质合金可空转可串联水陆两用矿用立泵

Also Published As

Publication number Publication date
CN101960147B (zh) 2013-03-06
CN101960147A (zh) 2011-01-26
WO2009109305A2 (fr) 2009-09-11
WO2009109305A3 (fr) 2010-05-27
US20110123357A1 (en) 2011-05-26

Similar Documents

Publication Publication Date Title
EP2098732A1 (fr) Agrégat de pompe pouvant flotter
EP2175972B1 (fr) Dispositif d'agitation pour boues activées
WO1986006712A1 (fr) Procede pour introduire de l'oxygene dans de l'eau et dispositif pour mettre en oeuvre ce procede
DE2166624A1 (de) Vorrichtung zum zerkleinern von in einer fluessigkeit mitgeschwemmten feststoffen
DE60117076T2 (de) Rührpumpe
DE1265137B (de) Ruehrwerk zum Belueften von Fluessigkeiten
DE69731091T2 (de) Rotodynamische pumpe
DE1557093C3 (de) Misch- und Absetzvorrichtung für Flüssigkeiten
EP1186782B1 (fr) Pompe submersible
DE3640791C2 (fr)
DE60014523T2 (de) Dispersionsvorrichtung für Materialien
DE60020839T2 (de) Balancierte untergetauchte mischerpaare für flüssigkeiten
DE102014111043A1 (de) Vorrichtung und Verfahren zum Strahlen von Suspension auf Werkstücke
WO2003048584A1 (fr) Ensemble pompe submersible avec interrupteur a flotteur
EP0410198A2 (fr) Arroseur escamotable
DE2754472A1 (de) Vorrichtung zum abtrennen einer fluessigkeit von einer anderen fluessigkeit
EP4001655B1 (fr) Pompe submersible à pression pour liquide et son utilisation
CH658409A5 (de) Wasserbelueftungsvorrichtung.
DE202018006895U1 (de) Regenwasseraufbereitungsvorrichtung, Kartuschenbehälter, Regenwasserbehandlungsvorrichtung und Substratkartusche
EP0216871B1 (fr) Agencement d'elimination continue de vapeur ou de gaz contenus dans des liquides tendant a former des mousses
DE8231286U1 (de) Vorrichtung zur luftzufuhr von gewaessern
DE3615629A1 (de) Verfahren zur einbringung von sauerstoff in wasser und vorrichtung zur durchfuehrung des verfahrens
EP1840429A2 (fr) Purgeur rapide avec un axe de levier modifié pour un culbuteur
DE2120576C3 (de) Vertikalachs kjer Belüftungskreisel
EP2698544A1 (fr) Pompe submersible, reposant sur un sol, avec hauteur d'aspiration réglable

Legal Events

Date Code Title Description
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

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

17P Request for examination filed

Effective date: 20100114

17Q First examination report despatched

Effective date: 20100211

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20141001