EP0992687A2 - 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
EP0992687A2
EP0992687A2 EP99119758A EP99119758A EP0992687A2 EP 0992687 A2 EP0992687 A2 EP 0992687A2 EP 99119758 A EP99119758 A EP 99119758A EP 99119758 A EP99119758 A EP 99119758A EP 0992687 A2 EP0992687 A2 EP 0992687A2
Authority
EP
European Patent Office
Prior art keywords
valve
pump
liquid pump
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.)
Granted
Application number
EP99119758A
Other languages
German (de)
English (en)
Other versions
EP0992687B1 (fr
EP0992687A3 (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.)
Husqvarna AB
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 DE19923357A external-priority patent/DE19923357A1/de
Application filed by Gardena Kress and Kastner GmbH filed Critical Gardena Kress and Kastner GmbH
Publication of EP0992687A2 publication Critical patent/EP0992687A2/fr
Publication of EP0992687A3 publication Critical patent/EP0992687A3/fr
Application granted granted Critical
Publication of EP0992687B1 publication Critical patent/EP0992687B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • 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
    • 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 promote the water from 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 pipe system 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 preferably liquid pump driven by an electric motor with at least one to a pump chamber of the liquid pump leading pump inlet through which liquid can be sucked or can be introduced, and at least one of the pump chamber Purging pump outlet for delivery of under pressure standing liquid.
  • the downstream Pump output arranged a check valve unit, the a housing and a valve insert removable from the housing Has. This creates the possibility, possibly all maintenance, especially cleaning and / or a malfunction components exposed to calcification or constipation to remove and this outside the liquid pump arrangement to clean or if necessary individually or in groups exchange. It is particularly advantageous that the removal is possible without the cable routing between the pump outlet and a downstream pressure line must, since the flow-through housing with the liquid pump arrangement can stay connected.
  • valve insert is removed in a few simple steps without the use of tools, So possible without tools, which makes this intervention quick and easy can be carried out easily if required.
  • the housing of the check valve unit integral with the liquid pump assembly for example in one piece with a housing of the liquid pump arrangement training, it is preferably a separate one Component. In a preferred embodiment, this has Housing a valve inlet and a valve outlet, the designed in the manner of connecting pieces of a line connection are.
  • This makes it possible to use the check valve unit as a whole, including the housing, of the Remove liquid pump assembly and through a line piece with corresponding similar or identical connection dimensions to replace.
  • a Check valve is not required, it can be the same Pump type also with a standard pipe section instead of the Check valve unit be equipped.
  • the flow-through housing of the check valve unit without a valve insert as a flowable pipe section to use.
  • the check valve unit forms an angular connection between a valve inlet and a valve outlet of the housing by the valve outlet at an angle, preferably a right angle, is aligned to the valve inlet.
  • 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 inlet and the valve outlet a removal opening for the valve insert have, preferably in extension of one of the connections, in particular the valve inlet is arranged. This will the valve insert e.g. in extension of the inflow direction removable.
  • the removal opening can preferably be through a manually operable closure member, especially one Screw cap, can be closed liquid-tight.
  • the check valve can take many suitable configurations.
  • a valve seat on one can be suitable molded portion of the housing.
  • the valve insert has a Removable valve seat element. This will make the Valve seat surface good after removing the valve seat element accessible and can be cleaned easily and thoroughly, without any intervention with cleaning tools inside of the housing is necessary.
  • a tool-free, in the assembled state of the check valve unit in Housing provided movable valve body the preferably at least one interchangeable, rubber-elastic Sealing element for interaction with the valve seat.
  • This also makes it convenient and particularly thorough Cleaning promoted.
  • the check valve designed so that the flow cross-section at continuous Movement of the valve body between the sealing position and fully open position after an initial phase small flow cross section increases suddenly.
  • the valve body downstream of a sealing engagement with the sealing area provided for the valve dimensions a downstream of the valve seat Guide channel, which may be provided on the valve seat element can be adapted so that with little withdrawal of the Valve body from the valve seat between the valve body and the guide channel is a narrow one, for example an annular channel Leakage current channel is formed, which is only a short Adjustment path formed from the shut-off position of the valve body is.
  • the downstream of the Pump output at least one for emitting a flow signal trained flow sensor unit arranged, the Signal can be used for example to control the pump can.
  • the flow sensor unit can be of any suitable design have, for example with one arranged in the flow path Water wheel. You can at any suitable location, for example behind the check valve unit or just before an outlet of a pressure line downstream of the pump outlet be provided.
  • the check valve unit an integrated flow sensor unit, preferably a magnetic element movable with the valve body and one arranged along the adjustment path of the valve body magnetic field sensitive sensor, in particular a Hall sensor.
  • the arrangement can be in one embodiment with leakage current channel should be such that up to a possibly specifiable maximum leakage current rate no flow signal is delivered to frequent switching operations of the To avoid pump.
  • An integration of a flow sensor in the check valve unit has the advantage, among other things, that the actuating movement of the valve body for the detection of Flow can be used so that separate elements in the flow path, such as water wheels or the like, can be avoided can.
  • the Pump output at least one preferably manually operable Drain valve to connect the pump outlet downstream pressure line provided with the pump chamber, this connection preferably being switched off Pump can be manufactured.
  • the check valve unit is particularly advantageous for this formed as a drain valve, so that a separately to be provided Drain valve is not necessary.
  • the check valve unit is at one Embodiment created in that the check valve unit a preferably manually operable, in particular rotatable control element for lifting the valve body from the valve seat has, this withdrawal only from the Position of the control unit and not on the input side and depends on the pressure conditions present on the output side.
  • the possibility of actuating the valve body independently of the pressure ratios can also be used to Start pump start by venting the inside of the pump through the open check valve perform so that the check valve unit also can take over the function of a vent valve.
  • 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 a 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.
  • 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.
  • Control member 46 is provided above the transverse opening 45 is at the level of the outlet nozzle 43, offset by 90 ° this, a housing wall recess for receiving a magnetic field sensitive Sensor 47, for example a Hall sensor, educated.
  • 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.
  • 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.
  • On the 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.
  • 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. In normal operation the pump, on the other hand, disengages the control element with the valve body so that it can only be inlet pressure can be moved 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 by one Pump control easily processable electrical Flow signal delivers. For this, the shift of the Valve body 55 detected by the magnetic field sensor 47, as soon as the permanent magnet 48 is in the effective range of the sensor 47 is moved.
  • the embodiment shown is so designed that with little displacement of the valve body due to the effect of a low leakage current of the permanent magnet is not yet detected by the sensor. Only with stronger ones Displacement of the valve body, its dimension from the current one Liquid flow depends, there is the permanent magnet in the detection area of the magnetic field sensor and delivers of the amount of liquid let through per unit of time dependent flow signal.
  • the advantageous training at the low leakage currents do not generate a flow signal This is particularly important if the pump is made to measure the sensor signal of the flow sensor is controlled, in particular to switch the pump on or off. These switching operations are accordingly not caused by low leakage currents effected, but only through substantial withdrawals on the print page.
  • 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 field of laxative 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 by a flexible membrane 75 closed liquid-tight.
  • the switch body 76 On the side of the membrane 75 facing away from the channel is supported within the housing 73 axially movably mounted switch body 76, which is connected to the Membrane is pressed. This is supported by a set screw 77 from the setting of the spring pressure on the Body 76 serves and within a housing 73 outside closing screw cover 78 is guided.
  • the switch body 76 acts via an articulated switch lever 79 which is guided outwards through a recess in the housing wall, to an electrical switch attached to the outside of the housing 80, which is one of the fluid pressure within the nozzle 70 dependent, further processable by a pump control Emits pressure signal.
  • 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 position is required, 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.
  • 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 when 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 perform different functions individually or in combination included, 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)
EP19990119758 1998-10-07 1999-10-06 Régulation du débit d'une pompe ménagère avec une soupape Expired - Lifetime EP0992687B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19846047 1998-10-07
DE19846047 1998-10-07
DE19923357A DE19923357A1 (de) 1998-10-07 1999-05-21 Flüssigkeitspumpenanordnung, insbesondere für die Verwendung in Haus und/oder Garten
DE19923357 1999-05-21

Publications (3)

Publication Number Publication Date
EP0992687A2 true EP0992687A2 (fr) 2000-04-12
EP0992687A3 EP0992687A3 (fr) 2001-01-31
EP0992687B1 EP0992687B1 (fr) 2013-05-29

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EP19990119758 Expired - Lifetime EP0992687B1 (fr) 1998-10-07 1999-10-06 Régulation du débit d'une pompe ménagère avec une soupape

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1359259A1 (fr) * 2002-04-18 2003-11-05 WISY AG Haustechniksysteme, Filtertechnik Installation d'alimentation d'eau
EP3156660A1 (fr) * 2015-10-15 2017-04-19 Grundfos Holding A/S Installation d'eau domestique avec pompe centrifuge et réservoir de pression à membrane
EP3156661A1 (fr) * 2015-10-15 2017-04-19 Grundfos Holding A/S Clapet anti-retour et installation d'eau domestique le comprenant

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US3876336A (en) * 1970-04-15 1975-04-08 Jacuzzi Bros Inc Tankless automatic water system
US3867071A (en) * 1972-09-22 1975-02-18 Ezra D Hartley Pumping system with air vent
US4431433A (en) * 1982-09-14 1984-02-14 Gerlach Charles R Single stage liquid motor and pump
JPS6018675A (ja) * 1984-06-12 1985-01-30 Matsushita Electric Ind Co Ltd ポンプの逆流防止弁
US5062452A (en) * 1990-11-21 1991-11-05 Harrisburg, Inc. Valve member and method of making such a member
IT1268937B1 (it) * 1994-01-14 1997-03-18 Co Ge S R L Dispositivo per il comando di un impianto di distribuzione d'acqua
DE19629137A1 (de) * 1996-07-19 1998-01-22 Gardena Kress & Kastner Gmbh Steuereinrichtung für ein Fluid, wie Wasser

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1359259A1 (fr) * 2002-04-18 2003-11-05 WISY AG Haustechniksysteme, Filtertechnik Installation d'alimentation d'eau
EP3156660A1 (fr) * 2015-10-15 2017-04-19 Grundfos Holding A/S Installation d'eau domestique avec pompe centrifuge et réservoir de pression à membrane
EP3156661A1 (fr) * 2015-10-15 2017-04-19 Grundfos Holding A/S Clapet anti-retour et installation d'eau domestique le comprenant
US20170108135A1 (en) * 2015-10-15 2017-04-20 Grundfos Holding A/S Non-return valve
CN107013493A (zh) * 2015-10-15 2017-08-04 格兰富控股联合股份公司 用于生活用水设施的结构单元
CN107013715A (zh) * 2015-10-15 2017-08-04 格兰富控股联合股份公司 止回阀
RU2667862C2 (ru) * 2015-10-15 2018-09-24 Грундфос Холдинг А/С Обратный клапан
US10533674B2 (en) 2015-10-15 2020-01-14 Grundfos Holding A/S Non-return valve for a water supply system having a sealing body movably connected to a holder's receiver opening by one or more limbs and lugs
CN107013715B (zh) * 2015-10-15 2020-03-17 格兰富控股联合股份公司 止回阀
US10626872B2 (en) 2015-10-15 2020-04-21 Grundfos Holding A/S Water supply system
US11555553B2 (en) 2015-10-15 2023-01-17 Grundfos Holding A/S Non-return valve

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Publication number Publication date
EP0992687B1 (fr) 2013-05-29
EP0992687A3 (fr) 2001-01-31

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