EP1503083B1 - An electric pump for cooling circuits - Google Patents

An electric pump for cooling circuits Download PDF

Info

Publication number
EP1503083B1
EP1503083B1 EP04005881A EP04005881A EP1503083B1 EP 1503083 B1 EP1503083 B1 EP 1503083B1 EP 04005881 A EP04005881 A EP 04005881A EP 04005881 A EP04005881 A EP 04005881A EP 1503083 B1 EP1503083 B1 EP 1503083B1
Authority
EP
European Patent Office
Prior art keywords
casing
electric pump
rotor
cover
stator
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
EP04005881A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1503083A1 (en
Inventor
Marco Pedersoli
Fabio Saottini
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.)
Industrie Saleri Italo SpA
Original Assignee
Industrie Saleri Italo 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 Industrie Saleri Italo SpA filed Critical Industrie Saleri Italo SpA
Publication of EP1503083A1 publication Critical patent/EP1503083A1/en
Application granted granted Critical
Publication of EP1503083B1 publication Critical patent/EP1503083B1/en
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
    • 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
    • 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
    • F04D13/0606—Canned motor pumps
    • F04D13/0626—Details of the can
    • 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
    • F04D13/0606—Canned motor pumps
    • F04D13/064—Details of the magnetic circuit
    • 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
    • F04D29/02—Selection of particular materials
    • F04D29/026—Selection of particular materials especially adapted for liquid pumps
    • 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
    • F04D29/18—Rotors
    • F04D29/20—Mounting rotors on shafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/40—Organic materials
    • F05D2300/43—Synthetic polymers, e.g. plastics; Rubber

Definitions

  • the present invention refers to an electric pump for cooling circuits.
  • the present invention refers to an electric pump for cooling circuits of internal combustion engines of motor vehicles and the like.
  • the internal combustion engines comprise cooling devices such as pumps, exchanger fans and radiators that dissipate the heat going out through a cooling liquid removing it from the engine passing through a given circuit.
  • the device setting out the fluid circulation comprises a pump, which is usually operated by the driving shaft.
  • the electric pumps which are presently known require the arrangement of various single components, such as the insulation capsule between the stator and the fluid, the half-volute, the above-mentioned flange for the mounting of the pump to the relevant base and the seat to house the control and command electronic board.
  • EP 1 124 302 discloses a brushless pump-motor arrangement for cooling also an incorporated electronic control unit through an axially bored rotor shaft and an impeller with holes.
  • GB 790 333 discloses a centrifugal pump operated by an asynchronous motor which does not require an incorporated control board and providing a casing of termo-setting resins co-moulded with the stator.
  • Object of the present invention is to solve the above-mentioned drawbacks.
  • object of the present invention is the provision of an electric pump especially for cooling circuits of internal combustion engines of motor vehicles and the like comprising a limited number of components to be easily assembled between them.
  • a further object of the present invention is the provision of an electric pump as defined above wherein, the critical sealing points that could cause failures are reduced.
  • Another object of the present invention is the provision of an electric pump suitable for carrying out the optimum thermal exchange between the fluid and the control and command electronic board.
  • a further object of the present invention is the provision of an electric pump which does not require an additional device making the thrust device of the rotor shaft.
  • a further object of the present invention is to provide the users with an electric pump, especially for cooling circuits of internal combustion engines assuring a high resistance and reliability level in time and is easily manufactured at low costs.
  • the electric pump for cooling circuit of the present invention marked in its whole with 10, essentially comprises a rotor 12 being axially developed into the pump-body and therein supported by known means, a complementary stator 14 and a shaft 16 of the rotor 12 one end of which is connected to an impeller 18. To the opposite end with respect to the impeller 18, the stator 14 is connected to a control and command electronic board 20.
  • a containment shell or casing 22 comprising a suction duct 26 and a delivery duct 24 of the fluid.
  • said casing 22 is made of thermo-setting resins or plastic material and it is at least co-moulded with the stator 14.
  • the casing 22 is preferably co-moulded both with said stator 14 and with a shaped insert 15, acting as a support seat for a fixed spindle 36 which will be described hereinafter.
  • Said insert 15 is advantageously made of metal bush-shaped cylindrical body of or other suitable material.
  • a socket cover 28 fastened to the same casing by adhesives or equivalent means.
  • Said cover 28 is preferably made of the same material as the casing 2 and it delimits and seals the components inside the body-pump and the electronic board 20 which is placed close to the same cover 28 and it is advantageously connected to the stator through a connection device 30 of the faston kind or the like.
  • said board is placed in a lowered seat 20' formed near the edge of the casing 22 matched with the cover 28.
  • the casing or shell 22 is provided with a half-volute 32 being integrally made with same casing during its moulding.
  • the moulding of the casing 22 is carried out by a moulding process with a steel mould wherein, before the plastic is injected, the stator 14 and the insert 15 are inserted.
  • the mould is then closed and the moulding step begins; this step consists in pressing a pre-heated plastic pellet which due to the temperature and pressure liquefies filling in all the cavities and wrapping the stator 14 and the insert 15.
  • the mould can be opened to extract the casing 22 integrating the stator 14 and the insert 15.
  • the casing 22 is provided with an opposite shaped cover, marked with 28', made of thermo-setting material.
  • Said opposite cover 28' usually comprises said suction (26) and delivery (24) ducts of the fluid and it is made integral with the casing 22 by adhesives assuring both the mechanical resistance and the sealing.
  • a mounting flange 34 of the pump to the relevant base (not shown) is advantageously obtained in one body together with the same casing during the co-moulding.
  • the shaft 16 of the rotor 12 represented in detail in Figure 2 , axially integrates the above-mentioned support fixed spindle 36 acting as thrust device equipped with a pass-through hole 38 extending lengthwise.
  • the support fixed spindle 36 is provided with a projection or annular collar 40 integrally obtained with said support fixed spindle 36.
  • Said projection or annular collar 40 engages with a complementary miter 42 formed along a sleeve 44 near the rotor 12.
  • the fluid passes through the hole 38 of the spindle 36 and through two or more holes 46 obtained into the impeller thus generating a blow-by flow regularly attacking the electronic board 20; the latter is therefore flooded and properly cooled during the operation of the pump.
  • the obtained thermal exchange keeps the temperature of said board to an optimum level which is lower to the limit allowed for its proper operation.
  • the electric pump of the present invention especially suitable for cooling circuits of internal combustion engines is made of a reduced number of components that can be easily assembled according to the presence of the casing 22 obtained by co-moulding and integrating the stator 14 and the shaped insert 15.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Compressor (AREA)
  • Rotary Pumps (AREA)
EP04005881A 2003-07-30 2004-03-12 An electric pump for cooling circuits Expired - Lifetime EP1503083B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI20030364U 2003-07-30
IT000364U ITMI20030364U1 (it) 2003-07-30 2003-07-30 Pompa elettrica per circuiti di raffreddamento

Publications (2)

Publication Number Publication Date
EP1503083A1 EP1503083A1 (en) 2005-02-02
EP1503083B1 true EP1503083B1 (en) 2009-08-12

Family

ID=30012635

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04005881A Expired - Lifetime EP1503083B1 (en) 2003-07-30 2004-03-12 An electric pump for cooling circuits

Country Status (6)

Country Link
EP (1) EP1503083B1 (es)
JP (1) JP3105024U (es)
AT (1) ATE439521T1 (es)
DE (2) DE20316535U1 (es)
ES (1) ES2331735T3 (es)
IT (1) ITMI20030364U1 (es)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6659737B2 (en) * 2001-02-05 2003-12-09 Engineered Machined Products, Inc. Electronic fluid pump with an encapsulated stator assembly
DE102004058591A1 (de) * 2004-11-26 2006-06-01 Laing, Oliver Umwälzpumpe und Verfahren zur Herstellung einer Umwälzpumpe
DE102007016255B4 (de) 2006-04-28 2012-11-29 Bühler Motor GmbH Kreiselpumpe
JP2008184947A (ja) * 2007-01-29 2008-08-14 Toyota Industries Corp 電動コンプレッサ
DE102007010050A1 (de) * 2007-03-01 2008-09-04 Continental Automotive Gmbh Kreiselpumpe mit einem Spiralgehäuse
ITBS20100021A1 (it) 2010-02-08 2011-08-09 Ind Saleri Italo Spa Pompa di raffreddamento con gruppo valvola
DE102011009192B3 (de) * 2011-01-21 2012-06-28 Continental Automotive Gmbh Elektrische Fluidpumpe mit gekühltem Nasslaufbereich
ITVE20110015A1 (it) * 2011-03-15 2012-09-16 Hydor Srl Motore elettrico sincrono per l'azionamento di una pompa e relativa elettropompa.
ITBS20120153A1 (it) 2012-10-29 2014-04-30 Ind Saleri Italo Spa Gruppo valvola estraibile con otturatore migliorato
ITBS20120165A1 (it) 2012-11-27 2014-05-28 Ind Saleri Italo Spa Gruppo valvola estraibile a tenuta migliorata
EP2933493B1 (en) * 2012-12-12 2021-10-06 Hanyu Group Joint-Stock Co., Ltd. Ac permanent-magnet drain pump
WO2014090079A1 (zh) * 2012-12-12 2014-06-19 江门市地尔汉宇电器股份有限公司 交流永磁排水泵
KR101332853B1 (ko) 2013-05-09 2013-11-27 엔엔엔코리아(주) 냉각부재를 내장한 자동차용 전동식 워터펌프
CN104235070A (zh) * 2013-06-13 2014-12-24 德昌电机(深圳)有限公司 泵壳及具有该泵壳的泵
ITBS20130149A1 (it) 2013-10-22 2015-04-23 Ind Saleri Italo Spa Gruppo valvola estraibile con otturatore migliorato
DE102013018840B3 (de) * 2013-11-08 2014-10-16 Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg Elektromotorische Wasserpumpe
CN106460852B (zh) 2014-04-28 2018-10-26 萨乐锐伊塔洛工业有限公司 具有改进的封闭器的可抽出式阀组
CN107076167B (zh) 2014-09-22 2019-04-05 萨乐锐伊塔洛工业有限公司 阀组、用于车辆的冷却回路的泵以及发动机缸体
WO2017124198A1 (en) 2016-01-22 2017-07-27 Litens Automotive Partnership Pump with variable flow diverter that forms volute
CN107248789A (zh) * 2017-07-31 2017-10-13 广东威灵电机制造有限公司 定子组件、电机、电子水泵以及定子的组装方法
CN107476987B (zh) * 2017-07-31 2021-01-22 广东威灵汽车部件有限公司 电子水泵
CN107269546A (zh) * 2017-07-31 2017-10-20 广东威灵电机制造有限公司 电子水泵
CN107725395A (zh) * 2017-10-25 2018-02-23 常州威灵电机制造有限公司 电子水泵
DE102018219597B4 (de) * 2018-11-15 2020-10-29 Hanon Systems Efp Deutschland Gmbh Flüssigkeitspumpe
WO2024044988A1 (zh) * 2022-08-30 2024-03-07 广东德昌电机有限公司 电机及具有电机的驱动系统

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB790333A (en) * 1954-10-29 1958-02-05 Gen Electric Improvements in electric pump-motor assemblies
CH410639A (de) * 1962-07-04 1966-03-31 Moser Hans Ing Dr Motorisch angetriebene, stopfbüchslose Förderpumpe für strömende Medien
US5949171A (en) * 1998-06-19 1999-09-07 Siemens Canada Limited Divisible lamination brushless pump-motor having fluid cooling system
DE10045596B4 (de) * 2000-09-15 2004-07-01 Bühler Motor GmbH Pumpe mit einem elektronisch kommutierten Gleichstrommotor
JP2002213385A (ja) * 2001-01-19 2002-07-31 Ebara Corp キャンドモータ及びキャンドモータポンプ

Also Published As

Publication number Publication date
DE20316535U1 (de) 2003-12-24
ES2331735T3 (es) 2010-01-14
EP1503083A1 (en) 2005-02-02
JP3105024U (ja) 2004-10-21
ITMI20030364V0 (it) 2003-07-30
DE602004022492D1 (de) 2009-09-24
ATE439521T1 (de) 2009-08-15
ITMI20030364U1 (it) 2005-01-31

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