EP0819851A2 - Dispositif de commande pour une pompe d'alimentation ou similaire - Google Patents

Dispositif de commande pour une pompe d'alimentation ou similaire Download PDF

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Publication number
EP0819851A2
EP0819851A2 EP97112017A EP97112017A EP0819851A2 EP 0819851 A2 EP0819851 A2 EP 0819851A2 EP 97112017 A EP97112017 A EP 97112017A EP 97112017 A EP97112017 A EP 97112017A EP 0819851 A2 EP0819851 A2 EP 0819851A2
Authority
EP
European Patent Office
Prior art keywords
housing
control device
pump
axis
operating means
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Withdrawn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
EP97112017A
Other languages
German (de)
English (en)
Other versions
EP0819851A3 (fr
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.)
Gardena Manufacturing GmbH
Original Assignee
Gardena Kress and Kastner GmbH
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 Gardena Kress and Kastner GmbH filed Critical Gardena Kress and Kastner GmbH
Publication of EP0819851A2 publication Critical patent/EP0819851A2/fr
Publication of EP0819851A3 publication Critical patent/EP0819851A3/fr
Withdrawn legal-status Critical Current

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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B51/00—Testing machines, pumps, or pumping installations
    • 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
    • F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
    • F04D15/0022—Control, e.g. regulation, of pumps, pumping installations or systems by using valves throttling valves or valves varying the pump inlet opening or the outlet opening
    • 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
    • F04D15/0227—Lack of liquid level being detected using a flow transducer

Definitions

  • the invention relates to a control or regulating device for a fluid conveyor, in particular a water pump, such as that for sucking in water over a height of several meters and for Delivered as pressurized water to a consumer can.
  • a water pump such as that for sucking in water over a height of several meters and for Delivered as pressurized water to a consumer can.
  • the pump, its electrical Drive motor or the fluid flow in one Flow channel are operated or influenced, i.e. that associated operating states are visually recognized and / or manually can be influenced, for which operating means, such as optical Displays and / or manual actuators provided are.
  • the pump can with the motor and / or the control device form a portable unit, which with a Stand area on a base in the company and from this document can be withdrawn at any time.
  • the control device expediently has means for Fluid pressure in the flow channel drops below a limit turn on the pump and when exceeding one Switch off limit value again, so that always a predetermined Delivery quantity of the fluid within narrow limits is guaranteed without the use of a pressure accumulator is required.
  • the operating means with regard to the base supporting them, for example the Pump or motor, fixed in position, so they can by the operator relatively heavy or ergonomically can only be achieved unfavorably, what the operation, that is reading off displays and / or pressing Makes actuators or handling complicated.
  • the invention has for its object a control device to create the disadvantages of known training or of the type described are avoided and in particular a slight adjustment of the operating means the requirements to be set by the operator enables.
  • operating means are different Operating positions can be transferred and fixed in the respective position.
  • the operating means can be implemented in stages and / or be continuously adjustable, namely with one or several separate bearings permanently on the base body or Base be held.
  • This tableau is advantageous for one horizontal, at a distance above the pump axis or the Pedestal axis pivoted and in each Self-locking setting held so that for adjustment a certain holding force must be overcome manually.
  • the tableau stands vertically upright above the Swivel axis and in another position it can go up pointing above the swivel axis or the associated bearing lie horizontally.
  • the panel can also be adjusted around an upright axis be suitably laterally adjacent to and at a distance from the tableau, so that the entire tableau or manual actuator pivoted in a circular path about this axis can be and is accessible in any position.
  • the entire tableau or manual actuator pivoted in a circular path about this axis can be and is accessible in any position.
  • In one position of the panel is expediently parallel to the upright pivot axis and in the other approximately at right angles to.
  • control device a control housing for receiving electrical Control elements, switch contacts, connection means or the like which is as described on the panel is adjustable and usable with a dimensionally stable unit forms the tableau.
  • This control housing and the panel are laterally spaced from the flow channel and are through formed a separate unit from this, so that the Electronics housing separate from the water-carrying housing trained and compared to the latter without difficulty is to be sealed. This allows the control or electronics housing No water can enter through the flow channel.
  • control device is advantageously as Tower on top of the motor pump, especially the Pump housing, in which they as a whole in different Operational positions can intervene.
  • the control device can also have a valve arrangement, for example with a check valve and / or a valve to change the passage cross section of the flow channel be provided with fixed values. Both valves can be done manually with one hand be adjustable, for example the check valve in a forced open position or the control valve in one Closed position.
  • the control device contains means for drainage of the flow channel and of this leading supply line, means for venting the Line paths between the inlet of the suction line and the Valve arrangement when priming, if that in these lines water still contains air pockets as well Means for continuously throttling the smallest passage cross-section of the flow channel.
  • Control device expediently at least one connection for a line to supply a consumer, for example an electrical consumer, such as a pump motor, on.
  • a consumer for example an electrical consumer, such as a pump motor
  • This line is from the control device or the Detachable connection, here detachable as below a non-destructive, easy solvability through a linear Plug movement or the like is to be understood.
  • connection is through one that is always accessible from the outside of the control device Coupling, like a clutch housing with contained therein electrical contacts formed.
  • the clutch housing can be fixed in position or countersunk on the control device be and lie behind the tableau.
  • a special one simple design results if the coupling is replaced by a Socket is formed as on wall sockets Buildings.
  • the clutch can be fitted with seals and / or a lid that can be opened at its coupling input be protected against the ingress of splash water.
  • the control device 1 is a preassembled unit on one Arrange socket 2, which here essentially only by one Pump 4 is firmly connected to a motor 5 and below this a stand for parking on the Soil has such that the common axis of the motor pump 3 horizontal or parallel to the stand area and above this lies.
  • the pump 4 has a fixed to the motor housing 7 connected and axially connected to this housing 6 on that like the entire housing 7 at a distance above the Stand level of unit 3 is.
  • Laterally on an operating side is a connection cable from the housing 7 in the lower region 8 sealed for electrical connection of the electric motor 5 led out and on the same side and above is a manually operated switch 9 on the housing 7 arranged for switching the unit 3 on and off.
  • Pump 4 and motor 5 have a common axis 10, which of the vertical axis 11 of the connection of the Unit 1 at right angles across the ends of the housing 6 is cut and over which one in a parallel Level axis 12 of the device 1 is provided is.
  • a bow-shaped Axis 10 parallel carrying handle 13 Above the axis 10 and the housing 7 and only in the area of which has the housing 7 a bow-shaped Axis 10 parallel carrying handle 13, with which the entire unit 1, 3 carried and transported by the operator can be.
  • the pump chamber 14 closes immediately to the front of the housing 7, its associated Front wall is the front limit of the engine 5 Chamber 14 can form.
  • the end of the rotor 17 facing away from the motor 5 lying suction chamber is in the uppermost area on one inlet 18 above axis 10 connected, which as a connecting piece for a suction line, such as one flexible hose parallel to axis 10 and from motor 5 protrudes away from the free end wall of the cover 15 and is formed in one piece with this.
  • a suction line such as one flexible hose parallel to axis 10 and from motor 5 protrudes away from the free end wall of the cover 15 and is formed in one piece with this.
  • an outlet 19 is connected, which is adjacent at a distance to the handle 13 and through one like the inlet 18th connecting part formed in one piece with the cover 15, like a flange 20 is formed.
  • Unit 1 is on that Flange 20 detachable from the unit 2, 3.
  • the chamber 14 on the side facing away from the engine 5 Rotor 17 provided with an emptying opening 21 through one parallel to axis 10 and inlet 18 like this one protruding neck formed and with a closing member, such as a screw cap that is tightly closable.
  • a closing member such as a screw cap that is tightly closable.
  • the upper side is the chamber 14 on the side facing away from the outlet 19 Side of the handle 13 connected to a filling opening 22, in the transition area between chamber 14 and inlet 18 in the free end wall of the cover 15 with a vertical axis flows.
  • the boundaries of the openings 18, 19, 21, 22 form a one-piece unit with the lid 15.
  • the Opening 21 can device 1 with connected pressure or Supply line as well as chamber 14 by draining be emptied of the water.
  • the opening 22 can the chamber 14, the inlet 18 with associated suction line and the flange 20 into the device 1 with Water are completely filled so that the pump 4 at the Commissioning does not run empty, but essentially sucked in air-free
  • the unit 1 forms one directly at the outlet 19 in the axis 11 adjoining channel 23, which by a two-piece, tubular housing 24 is limited and on the between and at a distance from its ends one at a distance above the unit 3, the handle 13 and closure member the opening 22 lying cross piece laterally above is attached.
  • the axis 12 of this cross piece 25 lies perpendicular to axis 11, but with parallel alignment the axes 10, 12 of FIG. 1 compared to the Axis 11 slightly forward to the operating side 8, 9 of the Motors 5 offset. With this orientation lies the further beyond the circumference of the tube 24 projecting part of the Cross piece 25 on the side facing the engine 5 in Distance above the handle 13.
  • the crosspiece 25 has a directly adjoining the tube 24, with its main part in one piece with the tube 24 formed housing 26, which lies in the axis 12 and according to FIG. 1 on the end face remote from the engine 5 immediately adjacent to the tube 24 with a removable cover is closed pressure-tight.
  • the housing 26 takes sensors for the pressure in channel 23 and for the amount of water flowing through on.
  • the pressure sensor can be adjacent to the channel 23 Contain membrane and the flow sensor one in Housing 26 rotatably mounted turbine rotor, which seals protrudes into the channel 23 and of the flowing through Water is driven.
  • the cross piece 35 forms at a distance adjacent to the tube 24 in the axis 12, a bearing 27, the hollow tubular bearing mandrel 28 in one piece to the housing 24, 26 only on the side facing away from the cover of the housing 26 Page freely connected above.
  • This connection area as well as the housing 26 and the central longitudinal section of the Tube 24 are essentially complete and narrow a detachable outer housing 29 from which the Approach 28 projects freely and together with Approach 28 with Distance laterally adjacent to the housings 24, 26, 29 exposed control housing 30 carries.
  • the housing 30 is on its largest, flat side formed by a panel 31, according to FIG. 1 at a distance above the axes 10, 12 vertically, namely at right angles to Footprint and parallel to axis 10 and thereby to Operating side 8, 9 of the unit 3 has, so that it from the same Side as the switch 9 is accessible.
  • Top view of unit 3 is inferior to unit 1 both sides parallel to axis 10 and to the operating side and the opposite side, which may also be the case if the axis 12 is aligned perpendicular to the axis 10 is.
  • the housing 29 is rigid with each other and with only two the cup-shaped housing parts 32 connected to the housing 24, 26, 33 formed, which is placed parallel to the axis 12 and are releasably braced against each other and through openings form for the two ends of the tube 24.
  • the one in one Axis 12 perpendicular to the axial plane of axis 11 joined housing parts 32, 33 form on the Housing 30 side facing an annular housing part 32, through which the mandrel 28 is passed.
  • the from Housing 30 facing away from housing part 33 is lid-shaped with closed end wall.
  • control housing 30 with a bearing part or bearing housing 34 which is axially and sealed engages in the housing part 32 and with his Inner circumference without radial play on the outer circumference of the mandrel 28 is rotatably mounted.
  • the housing 34 is in one piece with the Cup-shaped main part 35 of the housing 30 is formed so that its upper cover wall forms the bottom wall of part 35 and these in a top view to the front and back do not have that Housing 29, 34 protrudes.
  • the fully open front of the housing part 35 is with a cap-shaped housing part 36, namely a cover with the interposition of a seal tightly closed, its jacket in the interior of the housing part 35 engages and the end wall of the flat panel 31st forms which is easily detachable against the housing part 35 is tense.
  • a locking or locking device 38 with one completely covered within the housing part 32 lying detent spring 39 is provided, which on the housing part 32 is mounted and with locking cams in a locking ring of Housing 34 engages.
  • the housing 34 closes sealed at the end sealed to the housing part 32 and on the circumference the mandrel 28 so that no water penetrate into these components can.
  • the rear wall of the housing part at a distance from the panel 31 35 is perpendicular to the axis 12 and 12 in cross section protruding V-shaped to the panel 31.
  • On the back wall is sealed a connector coupling 40 so sunk, that most of the length of this coupling 40th inside the housing 30 and only a plate-shaped part whose outside is located.
  • the clutch 40 also engages in that Housing 34 and the outer part, which according to FIG. 1 completely Coupling 40 above axis 12 engages the housing 34 at the rear.
  • the clutch 40 is light detachable and its receiving opening in the wall of the housing 30, 34 is closed pressure-tight with an external seal.
  • a sealed passage for a power cord in the form of a flexible grommet 41 is provided, which protrudes beyond the rear of the housing and surrounds the cable.
  • this cable is an electronic Control unit 42 connected, which in turn the Coupling 40 is supplied with current via a switching contact.
  • On the coupling 40 can be a power connector at the end of the Cable 8 detachably connected by linear insertion be the same as the connector at the end of the Connection cable of the controller 42 is formed as both Plugs equally into the coupling 40 or into a mains socket fit.
  • the unit 1 or the housing 24 is exclusively about one provided at the lower end of the tube 24 Holding body, such as a nozzle 44, with the unit 2, 3 connected, namely parallel to the inside of the flange 20 plugged in sealed to axis 11.
  • the housing 24 is by two axially immediately below the housing 26 adjoining and by a lying in the axis 11 Screw connection fixed against each other by tension Housing parts formed, the lower one at a distance below the housing 26, 29 in one piece with the nozzle 44 and the upper one, at least above the housing 26, 29 partially in one piece with a connection 45, such as a plug-in coupling, is formed, on which a line leading away, can be detachably connected like a flexible hose can.
  • the port 45 is lower than the top and higher than the bottom of the housing 30 with a small distance next to this, since the housing 30 laterally approximately to the Housing 29 connects.
  • the housing 30 with the Panel 31 over 90 ° up to the stop in part 32 to the rear be pivoted so that the panel 31 facing upwards lying horizontally behind and above axis 12 or is aligned parallel to the footprint of the base 2.
  • the Panel 31 has accessible controls on its front on, namely display elements 46, such as light emitting diodes, and a Actuator 47 for switching the electronic on and off Control 42 or the motor 5.
  • the switch 47 forms insofar as a main switch, via which the pump 5 also can be turned off with switch 9 on, since with the switch 47 the power supply of the clutch 40 can be interrupted.
  • the unit 1 also points to the flow cross-sections of the channel 23 acting, a manually operable Valve arrangement 50, the actuator 48 in Form of a rotary knob below the housing 26, 29, 30, 34 on the outside of the lower end of the tube 24 immediately above the flange 20 and the nozzle 44 is such that the handle 48 to the same side as the panel 31, namely to the operating side 8, 9 of the motor 5 and in extension adjacent to the handle 13 between it and the opening 22 lies.
  • the handle 48 is about one to the axes 10 to 12 right-angled axis relative to the housing 6, 24, 26, 29, 30, 34 adjustably mounted on the lower housing part of the tube 24, can however also be rotated about an axis parallel to axis 10 be.
  • the unit 1 from the parts 24, 26, 30, 31 is namely as a whole about the axis 11 relative to the housing 6 over 360 ° steplessly rotatable and in every position Friction or clamping set.
  • the completely inside the lower tube part of the housing 34 lying valve arrangement 50 has below the housing 26 a check valve 49 and immediately below one Actuator 51 for forcibly opening the check valve 49 with the handle 48.
  • the handle 48 is with a control body rotatably connected, which within the Channel 23 the valve body of the valve 49 against spring force opens or releases to the closed position. This valve body opens automatically under the force of the current that flows from the Chamber 14 exits through the flange 20 and the channel 23 to Flows through port 45.
  • the control body can be spherical Valve body to be formed, with which at forcibly open valve 49 the passage cross section of the Channel 23 tight or by stop to a minimum cross-section closed by a few square millimeters can be used to ensure the suction power of the Pump 4 to increase and any air pockets in the suction Water through this minimal cross section to Vent port 45.
  • the Flow cross-section also continuously between a maximum value and a minimum value and thereby the flow rate can be set by channel 23.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
EP97112017A 1996-07-19 1997-07-15 Dispositif de commande pour une pompe d'alimentation ou similaire Withdrawn EP0819851A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1996129136 DE19629136A1 (de) 1996-07-19 1996-07-19 Steuereinrichtung für eine Förder-Pumpe o. dgl.
DE19629136 1996-07-19

Publications (2)

Publication Number Publication Date
EP0819851A2 true EP0819851A2 (fr) 1998-01-21
EP0819851A3 EP0819851A3 (fr) 1999-04-28

Family

ID=7800261

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97112017A Withdrawn EP0819851A3 (fr) 1996-07-19 1997-07-15 Dispositif de commande pour une pompe d'alimentation ou similaire

Country Status (2)

Country Link
EP (1) EP0819851A3 (fr)
DE (1) DE19629136A1 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0992685A2 (fr) * 1998-10-07 2000-04-12 GARDENA Kress + Kastner GmbH Régulation électronique du débit d'une pompe ménagère
EP1336761A2 (fr) * 2002-02-13 2003-08-20 Schneider Electric Industrie Italia S.p.A. Dispositif de contrôle pour une pompe d'autoclave
WO2003078839A2 (fr) * 2002-03-15 2003-09-25 Salamander Pumped Shower Systems Limited Pompe hydraulique
EP1775476A1 (fr) * 2005-10-13 2007-04-18 Alessio Pescaglini Dispositif de commande de groupe motopompe
WO2008119466A1 (fr) * 2007-04-02 2008-10-09 Alfred Kärcher Gmbh & Co. Kg Pompe pour liquides avec une partie de manœuvre réalisée sous forme de module de commande à distance
WO2010009704A2 (fr) * 2008-07-19 2010-01-28 Alldos Eichler Gmbh Unité d'actionnement présentant une unité de régulation séparée
ITFI20120079A1 (it) * 2012-04-20 2013-10-21 Trevi Engineering S R L Unipersona Le "apparecchio per il controllo dell'avviamento e dell'arresto di una pompa di una rete di distribuzione idrica"
ITFI20130231A1 (it) * 2013-10-04 2015-04-05 Trevi Engineering S R L Unipersona Le "apparecchio per la gestione del flusso di un liquido"
EP2990653A1 (fr) * 2014-08-29 2016-03-02 Pedrollo S.p.a. Dispositif permettant de commander le démarrage et l'arrêt d'un moteur électrique d'une pompe à moteur
EP3376042A1 (fr) * 2017-03-13 2018-09-19 Grundfos Holding A/S Système de montage permettant de monter une unité de surveillance sur une pompe
EP3973192A4 (fr) * 2019-05-22 2023-05-31 White International Pty Ltd Dispositif de commande de pompe
WO2023134954A1 (fr) * 2022-01-11 2023-07-20 KSB SE & Co. KGaA Pompe dotée d'une interface hm pouvant être installée de manière variable

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19923349A1 (de) * 1998-10-07 2000-04-20 Gardena Kress & Kastner Gmbh Flüssigkeitspumpenanordnung, insbesondere für die Verwendung in Haus und/oder Garten

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JP3070752B2 (ja) * 1990-03-30 2000-07-31 株式会社日立製作所 ポンプ装置の運転方法
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US5370504A (en) * 1991-06-28 1994-12-06 Kioritz Corporation Ambulant reciprocating compressor having plural pressure collection chambers
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DE29510508U1 (de) * 1994-08-06 1995-08-31 Luk Fahrzeug-Hydraulik Gmbh & Co Kg, 61352 Bad Homburg Lenkhilfpumpe

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Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0992685A3 (fr) * 1998-10-07 2001-01-31 GARDENA Kress + Kastner GmbH Régulation électronique du débit d'une pompe ménagère
EP0992685A2 (fr) * 1998-10-07 2000-04-12 GARDENA Kress + Kastner GmbH Régulation électronique du débit d'une pompe ménagère
EP1336761A2 (fr) * 2002-02-13 2003-08-20 Schneider Electric Industrie Italia S.p.A. Dispositif de contrôle pour une pompe d'autoclave
EP1336761A3 (fr) * 2002-02-13 2009-06-10 Schneider Electric Industrie Italia S.p.A. Dispositif de contrôle pour une pompe d'autoclave
WO2003078839A2 (fr) * 2002-03-15 2003-09-25 Salamander Pumped Shower Systems Limited Pompe hydraulique
WO2003078839A3 (fr) * 2002-03-15 2003-11-27 Salamander Pumped Shower Syste Pompe hydraulique
GB2402444A (en) * 2002-03-15 2004-12-08 Salamander Pumped Shower Syste Hydraulic pump
GB2402444B (en) * 2002-03-15 2006-02-15 Salamander Pumped Shower Syste Hydraulic pump
EP1775476A1 (fr) * 2005-10-13 2007-04-18 Alessio Pescaglini Dispositif de commande de groupe motopompe
EP2450574A1 (fr) * 2007-04-02 2012-05-09 Alfred Kärcher GmbH & Co. KG Pompe à liquide
WO2008119466A1 (fr) * 2007-04-02 2008-10-09 Alfred Kärcher Gmbh & Co. Kg Pompe pour liquides avec une partie de manœuvre réalisée sous forme de module de commande à distance
WO2010009704A2 (fr) * 2008-07-19 2010-01-28 Alldos Eichler Gmbh Unité d'actionnement présentant une unité de régulation séparée
WO2010009704A3 (fr) * 2008-07-19 2010-11-18 Alldos Eichler Gmbh Unité d'actionnement présentant une unité de régulation séparée
ITFI20120079A1 (it) * 2012-04-20 2013-10-21 Trevi Engineering S R L Unipersona Le "apparecchio per il controllo dell'avviamento e dell'arresto di una pompa di una rete di distribuzione idrica"
EP2653725A1 (fr) * 2012-04-20 2013-10-23 Trevi Engineering S.r.l. Unipersonale Appareil permettant de commander le démarrage et l'arrêt d'une pompe d'un réseau de distribution d'eau
ITFI20130231A1 (it) * 2013-10-04 2015-04-05 Trevi Engineering S R L Unipersona Le "apparecchio per la gestione del flusso di un liquido"
EP2857684A1 (fr) * 2013-10-04 2015-04-08 Trevi Engineering S.r.l. Unipersonale Appareil de gestion de l'écoulement d'un liquide
EP2990653A1 (fr) * 2014-08-29 2016-03-02 Pedrollo S.p.a. Dispositif permettant de commander le démarrage et l'arrêt d'un moteur électrique d'une pompe à moteur
EP3376042A1 (fr) * 2017-03-13 2018-09-19 Grundfos Holding A/S Système de montage permettant de monter une unité de surveillance sur une pompe
CN108571471A (zh) * 2017-03-13 2018-09-25 格兰富控股联合股份公司 将监测单元安装在泵上的安装系统
EP3973192A4 (fr) * 2019-05-22 2023-05-31 White International Pty Ltd Dispositif de commande de pompe
WO2023134954A1 (fr) * 2022-01-11 2023-07-20 KSB SE & Co. KGaA Pompe dotée d'une interface hm pouvant être installée de manière variable

Also Published As

Publication number Publication date
EP0819851A3 (fr) 1999-04-28
DE19629136A1 (de) 1998-01-22

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