EP1074745B1 - Hydraulic machine with automatic control device attached - Google Patents

Hydraulic machine with automatic control device attached Download PDF

Info

Publication number
EP1074745B1
EP1074745B1 EP99123319A EP99123319A EP1074745B1 EP 1074745 B1 EP1074745 B1 EP 1074745B1 EP 99123319 A EP99123319 A EP 99123319A EP 99123319 A EP99123319 A EP 99123319A EP 1074745 B1 EP1074745 B1 EP 1074745B1
Authority
EP
European Patent Office
Prior art keywords
pump
flow
pressure
fact
programmed
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.)
Expired - Lifetime
Application number
EP99123319A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1074745A1 (en
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
Leader Pumps Group SpA
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 Leader Pumps Group SpA filed Critical Leader Pumps Group SpA
Publication of EP1074745A1 publication Critical patent/EP1074745A1/en
Application granted granted Critical
Publication of EP1074745B1 publication Critical patent/EP1074745B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • 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. For these characteristics they are better qualified as separated completing accessories of the 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 water pump according to the present invention is defined in claim 1.
  • the water pump 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 pump has 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. First of all, it allows the user to have at his disposal a hydraulic machine, specifically a pump, which is activated and deactivated automatically following the opening and closing of the water tap, with no need he acts directly on it.
  • a hydraulic machine specifically a pump, which is activated and deactivated automatically following the opening and closing of the water tap, with no need he acts directly on it.
  • such pump is equipped with a control system against dry-working, which is integrated in the internal conduits of the pump.
  • 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)
  • Details Of Reciprocating Pumps (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Soil Working Implements (AREA)
  • Lifting Devices For Agricultural Implements (AREA)
  • Earth Drilling (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
EP99123319A 1999-08-06 1999-11-23 Hydraulic machine with automatic control device attached Expired - Lifetime EP1074745B1 (en)

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 EP1074745A1 (en) 2001-02-07
EP1074745B1 true EP1074745B1 (en) 2005-07-13

Family

ID=11394426

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99123319A Expired - Lifetime EP1074745B1 (en) 1999-08-06 1999-11-23 Hydraulic machine with automatic control device attached

Country Status (5)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1429034A2 (de) 2002-12-10 2004-06-16 Wilo Ag Motor-Pumpen-Aggregat mit Wärmedämmungsschale

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10111739A1 (de) * 2001-03-12 2002-10-02 Gardena Kress & Kastner Gmbh Pumpaggregat
EP1342921A1 (en) * 2002-03-05 2003-09-10 Ergon S.r.l. Pump with integral flow sensor
EP1775476A1 (en) * 2005-10-13 2007-04-18 Alessio Pescaglini Control device for motor pumps
GB0703081D0 (en) * 2007-02-16 2007-03-28 Salamander Pumped Shower Syste Improvements in water supply systems
ITTO20090598A1 (it) * 2009-07-31 2011-02-01 Sema Elettronica S R L Dispositivo per l'estrazione di acqua dal sottosuolo
US8920131B2 (en) * 2010-12-13 2014-12-30 A.Y. Mcdonald Mfg. Co. Pump control and method
EP2990653B1 (en) * 2014-08-29 2016-12-07 Pedrollo S.p.a. A device for controlling a starting and stopping of an electric motor of a motor-driven pump
IT201600082296A1 (it) * 2016-08-04 2018-02-04 Enrico Raddi Pressoflussostato migliorato
CA3052143A1 (en) * 2017-02-16 2018-08-23 Liquid Controls Llc System and method for liquid fuel delivery
EP4411143A1 (en) * 2023-02-01 2024-08-07 Dab Pumps S.p.A. Pressure sensing device suitable for an electric pump and electric pump equipped with it

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2244275C3 (de) * 1972-09-09 1975-09-04 Frankl & Kirchner, Fabrik Fuer Elektromotoren U. Elektrische Apparate, 6830 Schwetzingen Gekapselter Kollektormotor für ein Pumpenaggregat
US5135031A (en) * 1989-09-25 1992-08-04 Vickers, Incorporated Power transmission
CA2101170A1 (en) * 1991-01-22 1992-07-23 Geoffrey R. Percival Safety device
US5354182A (en) * 1993-05-17 1994-10-11 Vickers, Incorporated Unitary electric-motor/hydraulic-pump assembly with noise reduction features
DE19503403A1 (de) * 1995-02-02 1996-08-08 Ritec Srl Regelvorrichtung für eine Wasserversorgungsanlage
IT1295577B1 (it) * 1997-02-13 1999-05-13 Hydroservice S R L Dispositivo per il comando di una pompa idraulica,a controllo proporzionale computerizzato autoregolante

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1429034A2 (de) 2002-12-10 2004-06-16 Wilo Ag Motor-Pumpen-Aggregat mit Wärmedämmungsschale

Also Published As

Publication number Publication date
DE69926123D1 (de) 2005-08-18
EP1074745A1 (en) 2001-02-07
ES2245813T3 (es) 2006-01-16
IT1309857B1 (it) 2002-02-05
DE69926123T2 (de) 2006-06-01
ITPI990047A0 (it) 1999-08-06
ITPI990047A1 (it) 2001-02-06
ATE299556T1 (de) 2005-07-15

Similar Documents

Publication Publication Date Title
EP1074745B1 (en) Hydraulic machine with automatic control device attached
KR940016545A (ko) 유량제어장치 및 유체공급기구와 이들을 적용한 처리장치
ATE331162T1 (de) Hydrodynamische kupplungsanordnung mit einer kupplungsvorrichtung innerhalb des kupplungsgehäuses
ES2098816T3 (es) Motobomba sumergible.
SE9801728D0 (sv) Anordning för tillförsel av ett flytande bränsle till ett brännarorgan
SE9400881D0 (sv) Tätningsanordning
GB0210496D0 (en) Support platform for integrated system control of an appliance
SE0202203D0 (sv) Hydraulsystem
SE9103266D0 (sv) Vaetskebehaallare
SE0201896D0 (sv) Ventilanordning
IE74131B1 (en) Improvements in or relating to ablutionary installations
DK0404170T3 (da) Indretning til afsugning af væsker
FR2813241B1 (fr) Dispositif permettant de commander l'ecoulement d'un fluide
ES2190323A1 (es) Sistema de refrigeracion de motor.
ITMI920160A1 (it) Dispositivo di pompaggio multifase perfezionato
ATE138451T1 (de) Pumpe
ES1035980U (es) Dispositivo para el tratamiento de liquidos.
SE9601731D0 (sv) System för avtappning av vätskor
SE9102473D0 (sv) Kylsystem foer akustiska apparater
KR960011355A (ko) 식수 공급장치
FR2834084B1 (fr) Regulateur automatique de debit de fluide d'un conduit aller d'un circuit de fluide
ES1044878U (es) Dispositivo aplicable a la limpieza interior de tanques de liquidos.
JPS57120265A (en) Magnetic disk device
SE9803552D0 (sv) Magnetventilkoppling
RU2000101697A (ru) Насос-аэратор

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20010312

AKX Designation fees paid

Free format text: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

17Q First examination report despatched

Effective date: 20020923

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: LEADER PUMPS GROUP S.P.A.

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050713

Ref country code: LI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050713

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050713

Ref country code: CH

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050713

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050713

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050713

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 69926123

Country of ref document: DE

Date of ref document: 20050818

Kind code of ref document: P

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20051013

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20051013

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20051013

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20051123

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051130

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20051219

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2245813

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IE

Payment date: 20060214

Year of fee payment: 7

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20060418

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20061123

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20061123

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20061123

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20060117

Year of fee payment: 7

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 17

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 69926123

Country of ref document: DE

Representative=s name: V. BEZOLD & PARTNER PATENTANWAELTE - PARTG MBB, DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 69926123

Country of ref document: DE

Owner name: DAB PUMPS S.P.A., MESTRINO, IT

Free format text: FORMER OWNER: LEADER PUMPS GROUP S.P.A., BIENTINA, IT

REG Reference to a national code

Ref country code: ES

Ref legal event code: PC2A

Owner name: DAB PUMPS S.P.A.

Effective date: 20160518

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

Owner name: DAB PUMPS S.P.A., IT

Effective date: 20160527

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 18

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20181123

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20180927

Year of fee payment: 20

Ref country code: ES

Payment date: 20181213

Year of fee payment: 20

Ref country code: FR

Payment date: 20181121

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 69926123

Country of ref document: DE

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20201201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20191124