EP1074745A1 - Hydraulische Maschine versehen mit automatischer Steuereinrichtung - Google Patents

Hydraulische Maschine versehen mit automatischer Steuereinrichtung Download PDF

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Publication number
EP1074745A1
EP1074745A1 EP99123319A EP99123319A EP1074745A1 EP 1074745 A1 EP1074745 A1 EP 1074745A1 EP 99123319 A EP99123319 A EP 99123319A EP 99123319 A EP99123319 A EP 99123319A EP 1074745 A1 EP1074745 A1 EP 1074745A1
Authority
EP
European Patent Office
Prior art keywords
pump
pressure
fact
machine
machine according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP99123319A
Other languages
English (en)
French (fr)
Other versions
EP1074745B1 (de
Inventor
Giorgio Cuccioli
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.)
Leader Pumps Group SpA
Original Assignee
Eng & Mark Srl
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 Eng & Mark Srl filed Critical Eng & Mark Srl
Publication of EP1074745A1 publication Critical patent/EP1074745A1/de
Application granted granted Critical
Publication of EP1074745B1 publication Critical patent/EP1074745B1/de
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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/0653—Units comprising pumps and their driving means the pump being electrically driven the motor being flooded
    • 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
    • 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
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps

Definitions

  • the invention relates the technical sector of the construction of pumps for fluids and particularly for the distribution of water in external or internal areas.
  • control and protective devices against dry-working are known, as well as mechanical or electromechanical apparatus which improves the pump's working avoiding damages to the machine.
  • Said devices are generally constituted by a casing containing inside it the following elements:
  • Said devices are applied out of the pump through thread or specific clutches located on the delivery point, therefore out of the casing of the same pump.
  • WO 96/23936 Device for regulating a water supply plant
  • This invention aims at eliminating these and other drawbacks, supplying a compact pump, integrated with electromechanical devices that improve its functioning by controlling the pressure and the flow of the liquid and protecting the pump from dry-working.
  • a hydraulic machine is characterised by the fact that it comprises:
  • the machine has the advantage of being equipped with a cooling system for the electric motor, which operates through the passage of the pumped flow that skims the external surface of the electric tight motor. This allows the machine to be very silent and effective while working.
  • the hydraulic machine is a pump with at least a delivery indicator and a pressure switch attached to its internal ducts and connected with a control electronic circuit.
  • the delivery indicator (5) is a flow switch attached to the water suction or delivery conduit (3) inside the pump (2).
  • the pressure indicator (6) is a pressure switch attached to the water delivery conduit (3) inside the pump (2).
  • both the delivery indicator (5) and the pressure indicator (6) are easy to be reached from the outside, for possible inspections and cleaning or maintenance operations.
  • the electronic control card analyses the data coming from the pressure switch (6) and/or the flow switch (5) and activate automatically the pump when some water is required, for example when a tap has been turned on, when it measures a certain flow and/or a prefixed pressure, which is then kept constant.
  • the electronic control card analyses the data coming from the pressure switch (6) and from the flow switch (5) and deactivate automatically the pump when it measures a prefixed pressure and/or the absence of flow of the liquid.
  • the electronic card and the control panel have the advantage of being accessible from the outside of the pump, as they can be directly attached to the body of the pump, to its top or to a completely separated support, possibly far from the pump, such as an electric board.
  • the electronic card is programmed so as to allow the pump to work automatically, providing for activating it when the tap is turned on and deactivating it when it's turned off. Furthermore, the card stops automatically the pump in the absence of water to be sucked, thus avoiding possible damages to the machine.
  • the card can be programmed in order to carry out further functions according to the producer's or user's needs, always starting from the analysis of the data provided by the pressure switch and the delivery indicator.
  • the circuit is programmed so that it deactivates the pump automatically when the pump itself turns on and off more than once in short regular periods of time, because of a loss from the pipes of the hydraulic plant.
  • the pumping group with the pressure-flow switch device attached, is incorporated in a compact block that comprises a control panel.
  • This control panel has the advantage of being inserted on the top (12) and is connected to an electronic card for the programmed operation of the device.
  • Another advantage of this top is that it works as further acoustic insulator reducing even more the sound emission from the invention, thus permitting it being used also in internal domestic environments.
  • the pumping group is fixed to a base and protected by a top at its turn fixed to this base.
  • the invention is furnished ready to be installed and it doesn't need any particular procedures, being facilitated by flexible pipes that come out from the suction and the delivery.
  • the invention offers a lot of advantages.
  • this pump is compact and less unwieldy, since externally is like a traditional pump, even if it contains the integrated control devices. Therefore, it results handy, lighter and easier to use and transport.
  • the cooling system of the electric motor permits the pump to be very silent.
  • Another advantage is that the user gets a saving in the output costs, since it's not necessary to design and build an independent container with all the relative links for the connection of the pump.
  • the invention is constituted by a pump (2) inside which a delivery indicator (5) and a pressure switch (6) are attached to the water suction conduits (3). These conduits (3) cross the pump so that the fluid skims the external surface of the motor, that is tight. This allows the machine to have a very silent and effective cooling system.
  • control panel is attached to the external body of the pump, and is connected to the electronic card which receives and analyses the information provided by the pressure switch (6) and the flow switch (5), proceeding with the activation or deactivation of the pump according to the needs.
  • the invention is constituted by a pumping group (Fig. 3, n. 1) inside which a delivery indicator (5) and a pressure indicator (6) are attached to the water delivery conduit (3), and above which a top (12) is placed.
  • the control panel is located on the top of the pump, rather than on its body.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
  • Earth Drilling (AREA)
  • Soil Working Implements (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Lifting Devices For Agricultural Implements (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)
EP99123319A 1999-08-06 1999-11-23 Hydraulische Maschine versehen mit automatischer Steuereinrichtung Expired - Lifetime EP1074745B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1999PI000047A IT1309857B1 (it) 1999-08-06 1999-08-06 Macchina idraulica con integrato dispositivo automatico di controllo
ITPI990047 1999-08-06

Publications (2)

Publication Number Publication Date
EP1074745A1 true EP1074745A1 (de) 2001-02-07
EP1074745B1 EP1074745B1 (de) 2005-07-13

Family

ID=11394426

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99123319A Expired - Lifetime EP1074745B1 (de) 1999-08-06 1999-11-23 Hydraulische Maschine versehen mit automatischer Steuereinrichtung

Country Status (5)

Country Link
EP (1) EP1074745B1 (de)
AT (1) ATE299556T1 (de)
DE (1) DE69926123T2 (de)
ES (1) ES2245813T3 (de)
IT (1) IT1309857B1 (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1241357A1 (de) * 2001-03-12 2002-09-18 GARDENA Kress + Kastner GmbH Pumpaggregat
EP1342921A1 (de) * 2002-03-05 2003-09-10 Ergon S.r.l. Pumpe mit integriertem Flussensor
EP1429034A3 (de) * 2002-12-10 2006-01-04 Wilo Ag Motor-Pumpen-Aggregat mit Wärmedämmungsschale
EP1775476A1 (de) * 2005-10-13 2007-04-18 Alessio Pescaglini Steuervorrichtung für Motorpumpenaggregat
ITTO20090598A1 (it) * 2009-07-31 2011-02-01 Sema Elettronica S R L Dispositivo per l'estrazione di acqua dal sottosuolo
EP1959141A3 (de) * 2007-02-16 2012-05-30 Salamander Pumped Shower Systems Limited Verbesserte Wasserversorgungsanlage
US20120148419A1 (en) * 2010-12-13 2012-06-14 Aspen Randal S Pump Control and Method
EP2990653A1 (de) * 2014-08-29 2016-03-02 Pedrollo S.p.a. Vorrichtung zur steuerung des startens und stoppens eines elektromotors einer motorgetriebenen pumpe
IT201600082296A1 (it) * 2016-08-04 2018-02-04 Enrico Raddi Pressoflussostato migliorato
WO2018151869A1 (en) * 2017-02-16 2018-08-23 Liquid Controls Llc System and method for liquid fuel delivery
EP4411143A1 (de) * 2023-02-01 2024-08-07 Dab Pumps S.p.A. Druckmessvorrichtung für eine elektrische pumpe und elektrische pumpe damit

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3897178A (en) * 1972-09-09 1975-07-29 Frankl & Kirchner Pumping system
US5135031A (en) * 1989-09-25 1992-08-04 Vickers, Incorporated Power transmission
WO1992013195A1 (en) * 1991-01-22 1992-08-06 Jedray Pty. Ltd. Safety device
US5354182A (en) * 1993-05-17 1994-10-11 Vickers, Incorporated Unitary electric-motor/hydraulic-pump assembly with noise reduction features
US5738495A (en) * 1995-02-02 1998-04-14 Carmignani; Claudio Device for contolling the water pressure and flow in a water supply unit
WO1998036339A1 (en) * 1997-02-13 1998-08-20 Hydroservice S.R.L. A self-regulating computerized proportional control device for a water pump

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3897178A (en) * 1972-09-09 1975-07-29 Frankl & Kirchner Pumping system
US5135031A (en) * 1989-09-25 1992-08-04 Vickers, Incorporated Power transmission
WO1992013195A1 (en) * 1991-01-22 1992-08-06 Jedray Pty. Ltd. Safety device
US5354182A (en) * 1993-05-17 1994-10-11 Vickers, Incorporated Unitary electric-motor/hydraulic-pump assembly with noise reduction features
US5738495A (en) * 1995-02-02 1998-04-14 Carmignani; Claudio Device for contolling the water pressure and flow in a water supply unit
WO1998036339A1 (en) * 1997-02-13 1998-08-20 Hydroservice S.R.L. A self-regulating computerized proportional control device for a water pump

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1241357A1 (de) * 2001-03-12 2002-09-18 GARDENA Kress + Kastner GmbH Pumpaggregat
EP1342921A1 (de) * 2002-03-05 2003-09-10 Ergon S.r.l. Pumpe mit integriertem Flussensor
EP1429034A3 (de) * 2002-12-10 2006-01-04 Wilo Ag Motor-Pumpen-Aggregat mit Wärmedämmungsschale
EP1775476A1 (de) * 2005-10-13 2007-04-18 Alessio Pescaglini Steuervorrichtung für Motorpumpenaggregat
EP1959141A3 (de) * 2007-02-16 2012-05-30 Salamander Pumped Shower Systems Limited Verbesserte Wasserversorgungsanlage
ITTO20090598A1 (it) * 2009-07-31 2011-02-01 Sema Elettronica S R L Dispositivo per l'estrazione di acqua dal sottosuolo
US20120148419A1 (en) * 2010-12-13 2012-06-14 Aspen Randal S Pump Control and Method
US8920131B2 (en) * 2010-12-13 2014-12-30 A.Y. Mcdonald Mfg. Co. Pump control and method
EP2990653A1 (de) * 2014-08-29 2016-03-02 Pedrollo S.p.a. Vorrichtung zur steuerung des startens und stoppens eines elektromotors einer motorgetriebenen pumpe
IT201600082296A1 (it) * 2016-08-04 2018-02-04 Enrico Raddi Pressoflussostato migliorato
WO2018151869A1 (en) * 2017-02-16 2018-08-23 Liquid Controls Llc System and method for liquid fuel delivery
EP4411143A1 (de) * 2023-02-01 2024-08-07 Dab Pumps S.p.A. Druckmessvorrichtung für eine elektrische pumpe und elektrische pumpe damit

Also Published As

Publication number Publication date
ES2245813T3 (es) 2006-01-16
DE69926123T2 (de) 2006-06-01
ITPI990047A1 (it) 2001-02-06
ITPI990047A0 (it) 1999-08-06
DE69926123D1 (de) 2005-08-18
IT1309857B1 (it) 2002-02-05
EP1074745B1 (de) 2005-07-13
ATE299556T1 (de) 2005-07-15

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