EP0992686A2 - Régulation du débit d'une pompe ménagère avec une soupape - Google Patents

Régulation du débit d'une pompe ménagère avec une soupape Download PDF

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Publication number
EP0992686A2
EP0992686A2 EP99119757A EP99119757A EP0992686A2 EP 0992686 A2 EP0992686 A2 EP 0992686A2 EP 99119757 A EP99119757 A EP 99119757A EP 99119757 A EP99119757 A EP 99119757A EP 0992686 A2 EP0992686 A2 EP 0992686A2
Authority
EP
European Patent Office
Prior art keywords
pump
liquid
unit
arrangement according
outlet
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Withdrawn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
EP99119757A
Other languages
German (de)
English (en)
Other versions
EP0992686A3 (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
Priority claimed from DE19923351A external-priority patent/DE19923351A1/de
Application filed by Gardena Kress and Kastner GmbH filed Critical Gardena Kress and Kastner GmbH
Publication of EP0992686A2 publication Critical patent/EP0992686A2/fr
Publication of EP0992686A3 publication Critical patent/EP0992686A3/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Withdrawn legal-status Critical Current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
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
    • 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
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • 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
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/06—Mobile combinations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps

Definitions

  • the invention relates to a liquid pump arrangement, in particular for use in the home and / or garden, according to the preamble of claim 1.
  • This can be used to pump water to collection points such as ponds, cisterns or the like different to consumers
  • Liquid pump arrangements are used for example submersible pumps, garden pumps, fountain pumps or the like
  • domestic waterworks are also used, for example collected rainwater from an appropriate reservoir through a pipe system separate from the drinking water supply network to rainwater consumers such as toilets, washing machines, showers or the like to promote.
  • the invention is based, above all in propose improved liquid pump arrangement in this regard.
  • a liquid pump arrangement has one Liquid pump with at least one to a pump chamber the liquid pump leading pump inlet through which Liquid can be sucked in or introduced, and at least a pump outlet leading from the pump chamber for delivery of pressurized liquid, one through the pump conveyable liquid flow through the pump inlet and pump outlet leads.
  • the liquid pump arrangement at least one in the structure of the liquid pump arrangement integrable, flow-through functional unit to influence and / or monitor the Liquid flow assigned. So it will be a modular one Pump structure proposed in which at least one in the However, usually several components as separate units or modules are provided, each one or more generally perform self-contained functions. You can work independently and independently exchanged from each other or when not needed be omitted.
  • the proposed modular design makes service and maintenance easier, on the one hand, because a functional unit, for example, for cleaning easily removed from the pump assembly or location-independent in the event of defects repaired by the pump or by a similar functional functional unit is interchangeable.
  • the modular structure enables it, in the manner of a modular system a general-purpose basic device through installation or omitting certain functional groups exactly at the intended ones Adapt application purpose so that for every application an optimally configured liquid pump arrangement can be used.
  • the invention is particularly an integration of several Functional groups in the mechanical structure of a pump arrangement possible with a small overall volume of the overall arrangement, So a compact pump unit with the operating conditions customizable properties.
  • the functional units are so are designed so that, if necessary, by simple line sections, for example, appropriately dimensioned pipe sections, can be replaced. It is therefore advantageous if a functional unit a liquid inlet and a Liquid leakage forms in the manner of connecting pieces a line connection are formed. It can be provided if necessary be that at least one functional unit without the aid of tools can be installed at the intended installation location or can be removed from the liquid pump arrangement, so that this work quickly and without special preparation simply at the installation site of the liquid pump arrangement are feasible at any time.
  • a liquid entry and / or a liquid outlet can be a threaded nozzle section have a screw connection with an adjacent one Establish line section.
  • liquid it is also possible for liquid to enter and / or to design a liquid outlet as a connector, which can be plugged into a complementary line piece this is attachable.
  • Plug connections are special preferred if relative due to the installation environment Rotary movements of the parts to be connected or cumbersome are impossible.
  • the connection points be made liquid-tight by one or more Round cord seals or other elastic sealing elements be provided.
  • a functional unit is used as a check valve formed, which is preferably immediately downstream the pump outlet in a pressure line of the pump body is arranged or can be arranged. This can cause reflux of liquid from the line system connected on the pressure side be prevented into the pump chamber.
  • a check valve unit which is a housing, is preferred and one that can be removed from the housing, preferably without tools Valve insert. This creates the opportunity if necessary, all to be maintained, in particular to be cleaned and / or exposed to calcification or constipation Components and remove them outside the Clean liquid pump arrangement or individually if necessary or exchange in groups. This removal is advantageous possible without the cable routing between the pump outlet and a downstream pressure line must be because the flow-through housing with the liquid pump arrangement can stay connected.
  • the check valve unit forms an angular connection between liquid inlet and fluid leakage by the fluid leakage at an angle, preferably a right angle to Fluid entry is aligned.
  • This angular connection enables a particularly compact construction of the liquid pump arrangement and creates a convenient removal option for the valve insert.
  • the housing of the check valve unit in addition to the valve or liquid inlet and a removal opening for the valve or liquid outlet have for valve use, in particular in extension of one of the connections, e.g. of entry can be. Thereby the valve insert e.g. in Extension of the inflow direction can be removed.
  • the removal opening can by a preferably manually operated closure member, especially a screw cap, liquid-tight be lockable.
  • a functional unit as trained to emit a flow signal Flow sensor unit is formed. This can be upstream position of the pump inlet but preferably on the pressure side, i.e. downstream of the Pump outlet, arranged or can be arranged.
  • a flow detection can for example by a Flow sensor unit with at least one through the liquid flow drivable water wheel are made possible Rotation in particular mechanically, electrically and / or can be magnetically detectable.
  • Another, related with the drawing figures exemplified Embodiment is the flow sensor unit in one Check valve unit integrated, so that a separate Housing for the flow sensor unit and a provided for this Installation space is not necessary if both a Check valve, as well as flow detection desired is.
  • a separate Housing for the flow sensor unit and a provided for this Installation space is not necessary if both a Check valve, as well as flow detection desired is.
  • a Hall sensor can be provided which the flow signal delivers.
  • a functional unit can be preferred manually operated drain valve to be formed can be installed downstream of the pump outlet.
  • the emptying the downstream pipe sections can be outdoors or into a connected collection container.
  • the check valve unit as a drain valve is designed so that a separate drain valve to be provided is not necessary.
  • check valve unit can thereby be created be that this is a preferably manually operable, in particular rotatable control member for lifting the valve body from the valve seat, this lifting only on the position of the tax body and not on the input side and depends on the pressure conditions present on the output side.
  • valve body independently of the pressure ratios
  • the check valve unit also can take over the function of a vent valve.
  • a separate, serving as a vent valve To provide functional unit.
  • a functional unit is designed as a pressure switch unit, which is downstream of the pump outlet arranged or can be arranged and their signal can be used to control the pump can.
  • a suitably attached functional unit the inlet pressure monitor and the appropriate pressure signal for control purposes to use.
  • the pressure switch unit in the manner of a connecting pipe sleeve trained transition piece, of which at least one Liquid channel, for example, radial to the main liquid flow to one arranged to the side of the transition pipe Pressure switch device that leads to a compact Can form a unit with the transition piece.
  • a pressure switch unit can, for example, immediately after a check valve provided if necessary or further from this spaced, for example, just before a pump outlet connection be arranged.
  • a preferred use of the by the Pressure switch unit generated pressure signal is related explained in more detail with the embodiments.
  • Alternatively or in addition to a pressure switch can also be a pressure sensor be provided, if necessary in a separate functional unit.
  • one is Combined assembly of flow sensor and pressure switch provided, the flow sensor having a water wheel and the pressure switch is arranged transversely to the flow axis.
  • the pressure switch and the flow detection as well as any other Sensors can act as sensors as part of a controller pump operation.
  • the pump arrangement can be used for individual functional units or components are omitted, with the modular composition of the basic device including the Housing structure can remain unchanged.
  • the not needed Components or functional units can preferably be simple be replaced by standard pipe sections.
  • FIGS 1 and 2 are overall views of substantially Identical embodiments of a liquid pump arrangement 1, which is shown in particular for applications in Home and garden is provided and preferably as a pump a domestic waterworks can be used. It has a largely housing 2 made of stable, impact-resistant plastic, on the underside there are recesses for three feet 3 are. You define a standing level of the pump and pass preferably essentially rubber-like soft Material, for example made of a soft thermoplastic. The Feet enable a soundproof, stable stand Installation of the pump. In the housing is an electric motor operated, air-cooled by means of a fan 4 Integrated liquid pump 5, the pump impeller 6 around the one parallel to the stand level, usually horizontally aligned Pump axis 7 rotates within a pump chamber 8.
  • the pump chamber 8 is formed by a substantially dome-shaped Chamber housing 9 limits that in the shown in Fig. 2 Embodiment made of the same plastic material how the housing is, in other embodiments Increasing the compressive strength also from metal, for example stainless steel.
  • At the top of the chamber housing are parallel to each other and perpendicular to the pump axis 7, a leading into the chamber 8, rounder in cross section Pump inlet 10 and a leading from the chamber 8, in cross section Round pump outlet 11 arranged.
  • In the floor area of the chamber housing or in one connected to the pump chamber Base (Fig. 1) is a horizontal, to the pump axis 7 parallel nozzle 12 with an internal thread for receiving a screw-in drain valve 13 is provided.
  • FIG. 3 On the suction side of the pump is a related Fig. 3 described in more detail in the provided with internal thread Pump inlet screw-in filter connector 15 is provided.
  • replaceable Plastic component On this, which can also be designated as an inlet connection, replaceable Plastic component is an upper, in the axial extension the pump inlet and the level of the pump above of the upper end of all pump chambers, circular fill opening 16 is provided, for example liquid into the pump chamber before starting the pump can be filled.
  • the inlet opening is through a screw cap 17 provided with a seal can be closed.
  • the diameter of the filling opening 16 is advantageous chosen so large that a in the filter socket 15th Dirt sieve 18 that can be inserted from above and has a conical section shape with U-shaped handle from above through the filler opening inserted in the filter socket or removed upwards can be.
  • a in the filter socket 15th Dirt sieve 18 that can be inserted from above and has a conical section shape with U-shaped handle from above through the filler opening inserted in the filter socket or removed upwards can be.
  • the filter or sieve 18 is inserted outward edge at the upper end of the sieve body on an inner shoulder of the filter socket and the inside of the screw cap 17 presses lightly on the bracket 19, so that the filter insert 18 is clamped wobble-free.
  • an inlet opening 20 on the suction side for drawing in liquid above the upper edge of the pump chamber and above or upstream of the strainer 18 arranged.
  • the inlet opening 20 is through one at the top End region of the filter connector 15 projecting horizontally, with externally threaded connector 21 formed, the horizontal Axis with the filter socket fully screwed in runs essentially parallel to the pump axis 7.
  • the pressure switch unit 27 is advantageously in the liquid flow formed by the check valve to the pressure line Angle inserted in a particularly space-saving manner.
  • Fig. 7 Downstream of the pressure switch unit 27 is related with Fig. 7 explained in more detail than rigid or rigid Tube designed pressure pipe 28 is provided, the sections free to form a handle opening 29 runs above the housing 2 parallel to the pump axis 7.
  • the free-floating section lies approximately above the center of mass the overall pump arrangement and can be used as a handle serve for the pump arrangement.
  • Following this flowable handle 30 is in the course of the leading Pressure line provided a hinge connection 31, the one radial to the pressure line axis leading through the handle 32 aligned side output port 33.
  • Another output terminal 34 separate from this, is located in extension of the handle 30 on the axis 32 and is aligned with the inlet opening 20 on the suction side in the example.
  • the check valve unit 26 has a substantially cylindrical plastic housing 40, at the bottom End forming a radial shoulder as a valve inlet serving inlet connector 42 with a plurality of circumferential grooves are provided for receiving round cord seals.
  • a valve outlet outlet connector 43 On serving as valve outlet outlet connector 43 with external thread and circumferential groove for receiving a round cord seal protrudes in the upper region of the housing 40 at an angle of 90 ° to the inlet port from the housing 40.
  • Above the outlet nozzle is another housing opening on the housing that is open at the top 41 with an internal thread section for receiving a screw cap 44 is provided. In the housing section between Inlet port and outlet port is one in FIG.
  • a completely removable Valve insert 49 arranged inside the housing 40.
  • the valve seat member 50 is installed Condition on an inward facing shoulder of the Housing wall above the transverse opening 45 and is through the pins 52 secured against falling out.
  • One at the bottom End of a cylindrical guide opening 53 of the valve seat element provided inward shoulder 54 serves as the valve seat of the check valve.
  • valve body 55 One that interacts with the valve seat as a shut-off element serving spring-loaded, self-resetting valve body 55 has an internally hollow, cylindrical shaft 56, which on the side facing the valve seat below a web 57 a receiving groove for a cooperating with the valve seat 54 elastic cord seal 58 has.
  • shaft 56 On shaft 56 is a radial, on the side facing the magnetic field sensor 47 cylindrical receptacle designed for a permanent magnet 48, the one with the valve closed below the magnetic field sensor and arranged outside of its effective range is.
  • a conical tip 59 of the valve body protrudes when closed Valve (Fig. 4 and 5) through the central circular opening of the valve seat element in the area of the control member 46.
  • the support of a conically wound compression spring serves, whose opposite, wider end is at concave inward curved head portion 61 of the screw cap 44 supports.
  • the one with an external thread and one arranged within the front concave recess Handle bar 62 provided screw cap has on the inside an axially extending guide element 63 with a cruciform Cross section that is essentially free of play in the cylindrical interior of the valve body is insertable and the axially sliding guidance of the valve body is used.
  • the multi-part control element which can be inserted into the transverse opening 45 46 has an inside of the valve housing below the Opening of the valve seat element can be arranged and flowed through Ball element 65 on which one about the axis of rotation of the control member V-shaped cam contour 66 running around is provided with the conical tip 59 of the valve body interacts for axial displacement of the valve body.
  • the cam contour is designed so that in the no release position shown in Figures 2, 4 and 5 There is contact between the ball element and the valve body, so that the compression spring 60 seals the valve body presses on the valve seat while turning the Control member, for example, through 120 ° of the valve body the cam contour against the force of the compression spring from the valve seat is lifted off so that a flow path from the inlet port 42 through the ball element and the valve seat area to the outlet port 43 or vice versa.
  • the check valve effect is thus by actuation of the control member 46 can be canceled.
  • the valve insert 49 is a complete assembly if necessary Unscrew the cover 44, with the switching cover 44 and the valve body guided and carried by it normally stay connected and the valve seat element may also remain in the housing 40. Particularly advantageous affects the angular version of the check valve device from which a removal of the valve insert in Continuation of the direction of the incoming fluid allows. This means that the valve insert can be installed with a check valve device can be removed without the rest Structure of the pump assembly is affected, in particular also without having to remove other components.
  • the control member 46 is also due to its multi-part structure removable.
  • the embodiment shown is the Check valve unit at the same time as drain valve educated. For example, at the start of pump operation by opening the valve in the suction area if necessary and / or air in the pump chamber is first removed be before the pure liquid pumping operation is recorded. Because of the compressibility of air can without this option at the start of pump operation Functional impairments result.
  • the pump In normal operation the pump, on the other hand, is the control element out of engagement with the Valve body, so that this only through sufficient inlet-side Overpressure is movable in the open position.
  • valve Control device 46 it is by means of manual opening of the valve Control device 46 possible, with the pump switched off a connected Line system through the check valve device for example through the open drain valve or to empty through the intake manifold, so that the valve unit also forms a drain valve.
  • the embodiment of the check valve unit shown also acts as a flow sensor, one through a pump controller easily processable electrical flow signal delivers. This is the displacement of the valve body 55 detected by the magnetic field sensor 47 as soon as the permanent magnet 48 is shifted into the effective range of the sensor 47 is.
  • the embodiment shown is designed so that with little displacement of the valve body by the Effect of a low leakage current of the permanent magnet from the sensor is not yet detected. Only with a stronger shift of the valve body, the measure of which from the current liquid flow depends, the permanent magnet is in the detection area of the magnetic field sensor and delivers one of the amount of liquid allowed per unit of time dependent Flow signal.
  • a flow sensor can also use another principle work, for example by means of a liquid flow arranged rotating water wheel, the rotation of which e.g. is monitored mechanically, electrically or magnetically or with other electrical, electromagnetic, magnetic or optical means.
  • a flow sensor can also be used elsewhere in the laxative Pressure line, for example immediately before the outlet connections or provided on the inlet side of the pump his.
  • the described embodiment of the check valve unit thus combines at least four functions by: in addition to the function as a check valve, also a function as a drain valve, as a vent valve and as a flow sensor provides. These functions can be used by others Embodiments also through separate components or modules and / or elsewhere in the laxative area Pressure line may be provided.
  • a transition piece 70 is provided, which according to Kind of a connecting pipe sleeve is formed and on both axial ends 71, 72 with internally threaded receiving openings for screwing in pipe pieces or the like. having.
  • the Functional elements of the pressure switch are on the side next to the between the ends 71, 72 extending liquid flow or formed in one piece with the transition piece 70
  • Pressure switch housing 73 housed.
  • One in cross section small radial channel 74 connects the inside of the nozzle 70 with the interior of the housing 73 and is replaced by a flexible membrane 75 closed liquid-tight.
  • axially movably mounted switch body 76 which is attached to the membrane by means of a spiral compression spring is pressed. This is based on an adjusting screw 77 from the adjustment of the spring pressure on the body 76 serves and within a housing 73 that closes the outside Screw cover 78 is guided.
  • the switch body 76 acts via a hinged switch lever 79, which by a Recess of the housing wall is guided to the outside Electrical switch 80 attached to the outside of the housing a dependent on the fluid pressure within the nozzle 70, pressure signal that can be further processed by a pump control delivers.
  • the electromechanical switch other pressure switches are also possible.
  • a pressure switch unit can also be firmly connected to the pump housing and be structurally integrated into it. If a pressure switch unit not or not at the example shown in Fig. 2 Point is needed, so the pressure switch module can be replaced by a simple connecting pipe sleeve.
  • the swivel joint 31 arranged in the exit area has a sleeve with a lateral or radial connection 33, the infinitely and infinitely around the pressure line axis 32 is rotatably mounted and with round cord seals 85 is sealed. Via slot-shaped wall openings 86 in Pressure pipe can water from the axial direction Pressure line laterally to the radial outlet 33 of the Exit swivel 31.
  • Front outlet 34 of the pressure line are, preferably separately, lockable, for example by screwing on a screw cap. Common connectors, in particular screwed on tap pieces with quick coupling nipples become.
  • the swivel joint offers the possibility a second consumer to the pump without a separate one To connect branching piece.
  • the swivel second connection 33 through the unlimited and continuous rotation of the swivel second connection 33 in different, for the respective use optimal directions are rotated.
  • a U-shaped housing recess 87 is provided, in which the side connector 33 can be rotated.
  • This is preferably sized so that it, for example also a connector screwed onto the connector can record with water stop.
  • An advantageous use of a pump arrangement with at least Two separate pump outlet connections can also be made in it can be seen that at an exit, especially in Output 34 lying along the longitudinal axis, e.g. pneumatic Pressure accumulator can be connected, in particular for the mode of operation the pump as a domestic waterworks or in a comparable one Operating mode can be advantageous, for example to cause buffering.
  • pneumatic Pressure accumulator can be connected, in particular for the mode of operation the pump as a domestic waterworks or in a comparable one Operating mode can be advantageous, for example to cause buffering.
  • the modular structure with separately functioning and Units that can be installed or removed individually or in groups offers as a special advantage that instead of building units simple line elements can also be used can.
  • a Check valve and / or a pressure switch is not required the component that is not required by a simple Pipe element with identical installation dimensions replaced become.
  • the embodiment shown in FIG. 2 be completed by the check valve unit 26 through a 90 ° elbow and the pressure switch unit 27 is replaced by a connecting pipe sleeve.
  • a connection can be made with a domestic water supply network can be connected and to the others a drain valve connected via which the line network, e.g. for maintenance work that can be emptied without to disconnect from the pump and without the pump self-draining, which is usually manual venting the pump is required before restarting.
  • the embodiment shown in Fig. 2 has a laterally on Motor part of the pump fixed pump switch 90.
  • a contact field in this area provided with a removable switching device mechanically attached to the pump and at the same time can be electrically connected to this.
  • a timer can be assigned, for example is attachable to the pump.
  • On possibly existing pressure switch and / or an existing one Sensor for the flow status of the check valve can be connected to the switch or timer.
  • the signals from the pressure switch device and / or the check valve can advantageously for pump control, especially used to switch the pump on and off become. Additionally or alternatively, a A time program can be specified. Another advantageous control option, especially when used a pump arrangement of the type mentioned in the garden to see that with the help of a pressure switch unit Pump when reaching a pressure close to that without consumer withdrawal maximum achievable maximum pressure switched off with a restart advantageously only when the pressure has dropped sharply and / or upon detection of larger flow rates through an existing check valve he follows.
  • control options for the pump are advantageous for a pump with integrated Control device possible, which is preferably programmable can be.
  • integrated control device for example as Attachment to the pump housing can be omitted the need for controls via a separate feed line or for example by inserting a control device into the power supply line, e.g. a timer or the like.
  • the control device can be an electrical Sub-unit or as a control module also from the pump arrangement be detachable, so that depending on the intended application various, specially designed control units are also provided can be or, with unchanged pump construction also a variant with a conventional switch instead a more complex control device is possible.
  • the control device can in particular with removable design via plug contacts on a permanently connected to the pump arrangement Contact field can be plugged on.
  • control device of this type can contain different functions individually or in combination, for example a wireless controller, e.g. about Radio, a control according to a specified time and / or a Control according to at least one sensor signal. This can be done independently of the pump, for example a precipitation sensor or soil moisture sensor is provided be, and / or by at least one the operating state the pump indicating sensor, for example a Pump outlet pressure sensor or switch and / or one Flow sensor.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)
EP99119757A 1998-10-07 1999-10-06 Régulation du débit d'une pompe ménagère avec une soupape Withdrawn EP0992686A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19846047 1998-10-07
DE19846047 1998-10-07
DE19923351A DE19923351A1 (de) 1998-10-07 1999-05-21 Flüssigkeitspumpenanordnung, insbesondere für die Verwendung in Haus und/oder Garten
DE19923351 1999-05-21

Publications (2)

Publication Number Publication Date
EP0992686A2 true EP0992686A2 (fr) 2000-04-12
EP0992686A3 EP0992686A3 (fr) 2001-03-07

Family

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EP99119757A Withdrawn EP0992686A3 (fr) 1998-10-07 1999-10-06 Régulation du débit d'une pompe ménagère avec une soupape

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1217217A1 (fr) * 2000-12-22 2002-06-26 Grundfos a/s Installation d'alimentation d'eau

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015221318A1 (de) * 2015-10-30 2017-05-04 Robert Bosch Gmbh Hydropumpe für eine Kompaktachse, Motor-Pumpen-Einheit mit der Hydropumpe und hydraulische Steuereinheit mit der Motor-Pumpen-Einheit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59170497A (ja) * 1983-03-16 1984-09-26 Hitachi Ltd 可搬式小形ポンプ
DE4304149C1 (de) * 1993-02-12 1994-09-08 Grundfos As Selbstansaugendes Motorpumpenaggregat
DE19629137A1 (de) * 1996-07-19 1998-01-22 Gardena Kress & Kastner Gmbh Steuereinrichtung für ein Fluid, wie Wasser

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1217217A1 (fr) * 2000-12-22 2002-06-26 Grundfos a/s Installation d'alimentation d'eau

Also Published As

Publication number Publication date
EP0992686A3 (fr) 2001-03-07

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