EP1503083A1 - An electric pump for cooling circuits - Google Patents

An electric pump for cooling circuits Download PDF

Info

Publication number
EP1503083A1
EP1503083A1 EP04005881A EP04005881A EP1503083A1 EP 1503083 A1 EP1503083 A1 EP 1503083A1 EP 04005881 A EP04005881 A EP 04005881A EP 04005881 A EP04005881 A EP 04005881A EP 1503083 A1 EP1503083 A1 EP 1503083A1
Authority
EP
European Patent Office
Prior art keywords
casing
electric pump
pump according
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.)
Granted
Application number
EP04005881A
Other languages
German (de)
French (fr)
Other versions
EP1503083B1 (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

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
    • 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.
  • 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.
  • an electric pump which is especially suitable for cooling circuits of internal combustion engines comprising a rotor with shaft, a stator, an impeller connected to one end of said rotor or provided with two or more pass-through holes, a control and command electronic board and a containment casing or shell which is mainly characterized in that said casing is made of thermo-setting resins or plastic material wherein at least said stator is co-moulded.
  • 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)

Abstract

An electric pump (10) for cooling circuits of internal combustion engines comprising a rotor (12) with shaft (16), a stator (14), an impeller (18) connected to an end of said rotor and provided with two or more pass-through holes (46), a control and command electronic board (20) and a containment casing or shell (22) wherein said casing is made of thermo-setting resins or plastic material and it is co-moulded with at least said stator (14).

Description

  • The present invention refers to an electric pump for cooling circuits.
  • More particularly, the present invention refers to an electric pump for cooling circuits of internal combustion engines of motor vehicles and the like.
  • It is known that 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.
  • Even though this known solution is appropriate from the functional point of view, it shows some relevant drawbacks concerning the complexity in manufacturing and the assembly of the various components of the pump.
  • 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.
  • As can be seen, the equipping and the reciprocal assembly of these components imply important difficulties and subsequent costs affecting the finished product from the economical point of view.
  • It is also clear that the assembly of a plurality of components as regards this kind of product also requires many sealing points that are potential critical elements as for malfunctions and failures.
  • Moreover, the electric pumps that are presently known are usually provided with a thrust device of the rotor shaft and this implies further manufacturing and mounting difficulties.
  • Object of the present invention is to solve the above-mentioned drawbacks.
  • More particularly, 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.
  • According to the present invention, these and other objects will be obtained by an electric pump which is especially suitable for cooling circuits of internal combustion engines comprising a rotor with shaft, a stator, an impeller connected to one end of said rotor or provided with two or more pass-through holes, a control and command electronic board and a containment casing or shell which is mainly characterized in that said casing is made of thermo-setting resins or plastic material wherein at least said stator is co-moulded.
  • The building and functional features of the electric pump for cooling circuits of the present invention will be better understood from the following description, wherein reference is made to the figures of the attached drawings representing a preferred and non-limitative embodiment wherein:
  • Figure 1 is a longitudinal section schematic view of the electric pump for cooling circuits of the present invention;
  • Figure 2 is a longitudinal section schematic view of the rotor of said electric pump and its shaft;
  • Figure 3 is a schematic view of an enlarged detail "A" of Figure 2.
  • With reference to Figure 1, 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.
  • The above-mentioned components are contained into a containment shell or casing 22 comprising a suction duct 26 and a delivery duct 24 of the fluid.
  • According to the present invention, 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.
  • In correspondence with the electronic board 20, the rear end of said casing or shell 22 is closed by 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.
  • In particular, said board is placed in a lowered seat 20' formed near the edge of the casing 22 matched with the cover 28.
  • In correspondence with the opposite side of 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. After the plastic material has solidified the mould can be opened to extract the casing 22 integrating the stator 14 and the insert 15.
  • In the opposite position with respect to the cover 28, i.e. on the side of the half-volute 32, 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.
  • According to a further advantageous feature of the present invention, 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.
  • At two third of its development, 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.
  • As shown by the arrows F, F1 and F2 in Figure 1, 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.
  • As can be seen from the previous description, the advantages obtained by the present invention are clear.
  • 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.
  • Therefore the critical sealing points are drastically reduced while the cooling of the command and control electronic board 20 is accurately assured by the passage of the fluid through the hole 38 of the spindle 36 and the holes 46 of the impeller.
  • The manufacturing of said spindle 36 acting as thrust device thanks to the collar 40 integrated into the rotor block 12 is also advantageous.
  • Even though the present invention has been described above with reference to one embodiment which is given only by way of non-limitative example, some changes and variants will be clear to a technician skilled in the art according to the above-mentioned description. It is therefore clear that the present invention is meant to include all changes and variants falling within the spirit and the protection field of the appended claims.

Claims (10)

  1. An electric pump (10) for cooling circuits of internal combustion engines comprising a rotor (12) with shaft (16), a stator (14), an impeller (18) connected to an end of said rotor and provided with two or more pass-through holes (46), a control and command electronic board (20) and a containment casing or shell (22), characterized in that said casing (22) is made of thermo-setting resins or plastic material and it is co-moulded with at least said stator (14).
  2. The electric pump according to claim 1, characterized in that the casing (22) is co-moulded with the stator (14) and with a shaped insert (15) making the support for a fixed spindle (36) cooperating with the shaft (16).
  3. The electric pump according to claim 1 or 2, characterized in that the rear end of the casing (22) in correspondence with the electronic board (20), is closed by a socket cover (28) made of thermo-setting resin or other suitable plastic material and is made integral with the same casing by adhesives or other equivalent means.
  4. The electric pump according to any of the previous claims, characterised in that the electronic board (20) is placed in a lowered seat (20') formed near the edge of the casing (22) matched by the cover (28), said board (20) being connected to the stator (14) by a connection means of the faston type or the like.
  5. The electric pump according to any of the previous claims, characterized in that the casing (22) is provided with a half-volute (32) along the side opposite to said cover (28) which is obtained together with the same casing during the moulding.
  6. The electric pump according to any of the previous claims, characterized in that it comprises a mounting flange (34) obtained in one body with the casing (22) during its co-moulding.
  7. The electric pump according to any of the previous claims, characterized in that the shaft (16) of the rotor (12) axially integrates the support fixed spindle (36) provided with a pass-through hole (38) extending lengthwise.
  8. The electric pump according to claim 7, characterized in that the support fixed spindle (36) is provided with an integral annular collar (40) and the pump comprises a sleeve (44) placed near the rotor (12), provided with a complementary miter (42); said annular collar (40) being engaged into said miter (42).
  9. The electric pump according to any of the previous claims, characterized in that it comprises an opposite shaped cover (28') made of thermo-setting material and placed in the opposite position with respect to the cover (28) and being provided with a suction duct (26) and a delivery duct (28) of the fluid fastened to the casing (22) by adhesives or other equivalent means.
  10. The electric pump according to claims 3 or 9, characterized in that the socket cover (28) and/or the opposite cover (28') are made of the same material as the casing (22).
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
IT000364U ITMI20030364U1 (en) 2003-07-30 2003-07-30 ELECTRIC PUMP FOR COOLING CIRCUITS
ITMI20030364U 2003-07-30

Publications (2)

Publication Number Publication Date
EP1503083A1 true EP1503083A1 (en) 2005-02-02
EP1503083B1 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 (en)
JP (1) JP3105024U (en)
AT (1) ATE439521T1 (en)
DE (2) DE20316535U1 (en)
ES (1) ES2331735T3 (en)
IT (1) ITMI20030364U1 (en)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007010050A1 (en) * 2007-03-01 2008-09-04 Continental Automotive Gmbh Centrifugal pump for use as coolant centrifugal pump in motor vehicle, has spiral housing with two housing parts and central region of former housing part is tumbler-shaped for receiving rotor provided in wet chamber
WO2011095907A1 (en) 2010-02-08 2011-08-11 Industrie Saleri Italo S.P.A. Cooling pump with a valve group
CN103443467A (en) * 2011-03-15 2013-12-11 赫都有限责任公司 Synchronous electric motor for the operation of a pump and the related motor pump
CN103502652A (en) * 2011-01-21 2014-01-08 大陆汽车有限责任公司 Electric fluid pump having a cooled wet section
WO2014068417A1 (en) 2012-10-29 2014-05-08 Industrie Saleri Italo S.P.A. Extractable valve group with improved obturator
WO2014083441A1 (en) 2012-11-27 2014-06-05 Industrie Saleri Italo S.P.A. Cartridge (extractable) valve to be mounted in a coolant pump discharge with an improved seal between the valve and the pump casing
WO2014090079A1 (en) * 2012-12-12 2014-06-19 江门市地尔汉宇电器股份有限公司 Ac permanent-magnet drain pump
WO2014090078A1 (en) * 2012-12-12 2014-06-19 江门市地尔汉宇电器股份有限公司 Ac permanent-magnet drain pump
US20140369824A1 (en) * 2013-06-13 2014-12-18 Johnson Electric S.A. Circulation Pump
WO2015059586A1 (en) 2013-10-22 2015-04-30 Industrie Saleri Italo S.P.A. Extractable valve group with improved obturator and pump
WO2015166372A1 (en) 2014-04-28 2015-11-05 Industrie Saleri Italo S.P.A. Extractable valve group with improved obturator
WO2016046682A1 (en) 2014-09-22 2016-03-31 Industrie Saleri Italo S.P.A. Valve group with axially movable shutter
US9587647B2 (en) 2013-05-09 2017-03-07 Nnn Korea Co., Ltd. Electronic water pump with cooling unit for vehicles
CN107248789A (en) * 2017-07-31 2017-10-13 广东威灵电机制造有限公司 Stator module, motor, the assemble method of electronic water pump and stator
CN107269546A (en) * 2017-07-31 2017-10-20 广东威灵电机制造有限公司 Electronic water pump
CN107476987A (en) * 2017-07-31 2017-12-15 广东威灵电机制造有限公司 Electronic water pump
CN107725395A (en) * 2017-10-25 2018-02-23 常州威灵电机制造有限公司 Electronic water pump
WO2024044988A1 (en) * 2022-08-30 2024-03-07 广东德昌电机有限公司 Electric motor and drive system having electric motor

Families Citing this family (7)

* 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 (en) * 2004-11-26 2006-06-01 Laing, Oliver Circulation pump and method for producing a circulation pump
DE102007016255B4 (en) * 2006-04-28 2012-11-29 Bühler Motor GmbH rotary pump
JP2008184947A (en) * 2007-01-29 2008-08-14 Toyota Industries Corp Electric compressor
DE102013018840B3 (en) * 2013-11-08 2014-10-16 Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg Electromotive water pump
CN108496011B (en) 2016-01-22 2021-04-13 利滕斯汽车合伙公司 Pump with variable flow diverter forming a volute
DE102018219597B4 (en) * 2018-11-15 2020-10-29 Hanon Systems Efp Deutschland Gmbh Liquid pump

Citations (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
GB1040953A (en) * 1962-07-04 1966-09-01 Hans Moser Dry demounting of bearings of glandless pump without emptying the pump circuit
EP1124302A2 (en) * 1998-06-19 2001-08-16 Siemens Canada Limited Divisible lamination brushless pump-motor having fluid cooling system
DE10045596A1 (en) * 2000-09-15 2002-04-04 Buhler Motor Gmbh Pump e.g. water pump for motor vehicle, has commutation circuit incorporated in bearing plate between pumping space and electronically-commutated DC motor
WO2002058213A1 (en) * 2001-01-19 2002-07-25 Ebara Corporation Canned motor and canned motor pump

Patent Citations (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
GB1040953A (en) * 1962-07-04 1966-09-01 Hans Moser Dry demounting of bearings of glandless pump without emptying the pump circuit
EP1124302A2 (en) * 1998-06-19 2001-08-16 Siemens Canada Limited Divisible lamination brushless pump-motor having fluid cooling system
DE10045596A1 (en) * 2000-09-15 2002-04-04 Buhler Motor Gmbh Pump e.g. water pump for motor vehicle, has commutation circuit incorporated in bearing plate between pumping space and electronically-commutated DC motor
WO2002058213A1 (en) * 2001-01-19 2002-07-25 Ebara Corporation Canned motor and canned motor pump

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007010050A1 (en) * 2007-03-01 2008-09-04 Continental Automotive Gmbh Centrifugal pump for use as coolant centrifugal pump in motor vehicle, has spiral housing with two housing parts and central region of former housing part is tumbler-shaped for receiving rotor provided in wet chamber
DE202011110767U1 (en) 2010-02-08 2016-04-04 Industrie Saleri Italo S.P.A. Cooling pump with a valve group
WO2011095907A1 (en) 2010-02-08 2011-08-11 Industrie Saleri Italo S.P.A. Cooling pump with a valve group
EP2687728A1 (en) 2010-02-08 2014-01-22 Industrie Saleri Italo S.P.A. Cooling pump with a valve group
DE202011110766U1 (en) 2010-02-08 2016-04-04 Industrie Saleri Italo S.P.A. Cooling pump with a valve group
CN103502652A (en) * 2011-01-21 2014-01-08 大陆汽车有限责任公司 Electric fluid pump having a cooled wet section
CN103443467A (en) * 2011-03-15 2013-12-11 赫都有限责任公司 Synchronous electric motor for the operation of a pump and the related motor pump
CN103443467B (en) * 2011-03-15 2016-08-17 赫都有限责任公司 The synchronous electric motor of operation and associated motor pump for pump
WO2014068417A1 (en) 2012-10-29 2014-05-08 Industrie Saleri Italo S.P.A. Extractable valve group with improved obturator
DE202013012344U1 (en) 2012-10-29 2016-06-02 Industrie Saleri Italo S.P.A. Coolant pump with a valve group with shut-off device
EP3021016A1 (en) 2012-10-29 2016-05-18 Industrie Saleri Italo S.P.A. Extractable valve group with improved obturator
WO2014083441A1 (en) 2012-11-27 2014-06-05 Industrie Saleri Italo S.P.A. Cartridge (extractable) valve to be mounted in a coolant pump discharge with an improved seal between the valve and the pump casing
WO2014090079A1 (en) * 2012-12-12 2014-06-19 江门市地尔汉宇电器股份有限公司 Ac permanent-magnet drain pump
WO2014090078A1 (en) * 2012-12-12 2014-06-19 江门市地尔汉宇电器股份有限公司 Ac permanent-magnet drain pump
US10151328B2 (en) 2012-12-12 2018-12-11 Jangmen Idear Hanyu Electrical Joint-Stock Co., Ltd. Alternating-current permanent magnet draining pump
CN104854349B (en) * 2012-12-12 2017-07-28 江门市地尔汉宇电器股份有限公司 AC permanent-magnet draining pump
US9587647B2 (en) 2013-05-09 2017-03-07 Nnn Korea Co., Ltd. Electronic water pump with cooling unit for vehicles
US9624945B2 (en) * 2013-06-13 2017-04-18 Johnson Electric S.A. Circulation pump
US20140369824A1 (en) * 2013-06-13 2014-12-18 Johnson Electric S.A. Circulation Pump
WO2015059586A1 (en) 2013-10-22 2015-04-30 Industrie Saleri Italo S.P.A. Extractable valve group with improved obturator and pump
WO2015166372A1 (en) 2014-04-28 2015-11-05 Industrie Saleri Italo S.P.A. Extractable valve group with improved obturator
WO2016046682A1 (en) 2014-09-22 2016-03-31 Industrie Saleri Italo S.P.A. Valve group with axially movable shutter
CN107248789A (en) * 2017-07-31 2017-10-13 广东威灵电机制造有限公司 Stator module, motor, the assemble method of electronic water pump and stator
CN107269546A (en) * 2017-07-31 2017-10-20 广东威灵电机制造有限公司 Electronic water pump
CN107476987A (en) * 2017-07-31 2017-12-15 广东威灵电机制造有限公司 Electronic water pump
CN107476987B (en) * 2017-07-31 2021-01-22 广东威灵汽车部件有限公司 Electronic water pump
CN107725395A (en) * 2017-10-25 2018-02-23 常州威灵电机制造有限公司 Electronic water pump
WO2024044988A1 (en) * 2022-08-30 2024-03-07 广东德昌电机有限公司 Electric motor and drive system having electric motor

Also Published As

Publication number Publication date
ES2331735T3 (en) 2010-01-14
ITMI20030364U1 (en) 2005-01-31
EP1503083B1 (en) 2009-08-12
DE20316535U1 (en) 2003-12-24
JP3105024U (en) 2004-10-21
ITMI20030364V0 (en) 2003-07-30
ATE439521T1 (en) 2009-08-15
DE602004022492D1 (en) 2009-09-24

Similar Documents

Publication Publication Date Title
EP1503083A1 (en) An electric pump for cooling circuits
EP1884010B1 (en) Bldc motor and pump assembly with encapsulated circuit board
US20020106290A1 (en) Electronic fluid pump
EP1635065A1 (en) Pump assembly
JP2004512462A (en) Pump driven by an electric motor and method for manufacturing such a pump
KR101072327B1 (en) Electric water pump
US20140099217A1 (en) Fuel pump assembly and method of making same
JPH11166500A (en) Pump
US11193493B2 (en) Water pump
US9618011B2 (en) Electric water pump with coolant passage
EP1635441A2 (en) Method of making a rotor for an electric motor
US11499548B2 (en) Gerotor pump and method for producing same
US6464471B1 (en) High-efficiency motor/pump system for jetted bath/spas
US6296458B1 (en) Electric fuel pump
CN113137376A (en) High-power electronic water pump
JP5910590B2 (en) Brushless motor rotor
JP2005527729A (en) Connecting member for fuel pump
US20220085683A1 (en) Electric motor for driving working machines having media separation
CN112469901A (en) Water pump
CN112335345A (en) Arrangement comprising a housing and a power electronic circuit arranged on the bottom of the housing therein
EP3384162B1 (en) Rotor group of a cooling pump of a vehicle cooling circuit comprising a rotor body
JP7348781B2 (en) fan motor
CN112867868A (en) Radial fan
CN217445117U (en) Motor bearing plate and motor
CN115013136B (en) Pump mounted to crankshaft

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 BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

17P Request for examination filed

Effective date: 20050204

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

17Q First examination report despatched

Effective date: 20080410

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 BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

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: 602004022492

Country of ref document: DE

Date of ref document: 20090924

Kind code of ref document: P

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2331735

Country of ref document: ES

Kind code of ref document: T3

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: 20090812

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: 20090812

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

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: 20090812

Ref country code: SI

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: 20090812

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: 20090812

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: 20091212

Ref country code: BG

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: 20091112

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

Ref country code: RO

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: 20090812

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: 20090812

Ref country code: CZ

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: 20090812

Ref country code: EE

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: 20090812

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

Ref country code: SK

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: 20090812

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

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

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: 20090812

26N No opposition filed

Effective date: 20100517

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

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: 20091113

Ref country code: MC

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

Effective date: 20100331

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Effective date: 20100312

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: 20100312

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

Ref country code: CH

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

Effective date: 20100331

Ref country code: LI

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

Effective date: 20100331

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: 20100312

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: 20090812

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

Ref country code: HU

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: 20100213

Ref country code: LU

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

Effective date: 20100312

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

Ref country code: TR

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: 20090812

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 13

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 14

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 15

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

Ref country code: FR

Payment date: 20210330

Year of fee payment: 18

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

Ref country code: AT

Payment date: 20210322

Year of fee payment: 18

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

Ref country code: ES

Payment date: 20210405

Year of fee payment: 18

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

Ref country code: DE

Payment date: 20220322

Year of fee payment: 19

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

Ref country code: IT

Payment date: 20220304

Year of fee payment: 19

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 439521

Country of ref document: AT

Kind code of ref document: T

Effective date: 20220312

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

Ref country code: FR

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

Effective date: 20220331

Ref country code: AT

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

Effective date: 20220312

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20230428

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 NON-PAYMENT OF DUE FEES

Effective date: 20220313

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602004022492

Country of ref document: DE

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

Ref country code: DE

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

Effective date: 20231003

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

Ref country code: IT

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

Effective date: 20230312