EP1239152A2 - Electric motor driven hydraulic pump - Google Patents

Electric motor driven hydraulic pump Download PDF

Info

Publication number
EP1239152A2
EP1239152A2 EP02251514A EP02251514A EP1239152A2 EP 1239152 A2 EP1239152 A2 EP 1239152A2 EP 02251514 A EP02251514 A EP 02251514A EP 02251514 A EP02251514 A EP 02251514A EP 1239152 A2 EP1239152 A2 EP 1239152A2
Authority
EP
European Patent Office
Prior art keywords
pump
assembly
sub
frame
pump 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
EP02251514A
Other languages
German (de)
French (fr)
Other versions
EP1239152B1 (en
EP1239152A3 (en
Inventor
Tim Lloyd
Keith Alan-Jones
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
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 Lucas Industries Ltd filed Critical Lucas Industries Ltd
Publication of EP1239152A2 publication Critical patent/EP1239152A2/en
Publication of EP1239152A3 publication Critical patent/EP1239152A3/en
Application granted granted Critical
Publication of EP1239152B1 publication Critical patent/EP1239152B1/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
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/20—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by changing the driving speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0053—Venting means for starting
    • 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
    • F04D13/0686—Mechanical details of the pump control unit

Definitions

  • This invention relates to improvements in electric motor driven hydraulic pumps, for example of the type used in hydraulic suspension systems for vehicles.
  • ECUs electronice control units
  • pcbs printed circuit boards
  • the casing of the motor is extended to include a chamber in which electronics can be housed.
  • a lead-frame assembly may be implemented that retains and connects all the high power components, for example including a power-module of bare die FETs.
  • the low power electronics may be mounted on a pcb board which is mounted on and connected to the lead-frame.
  • the low power electronics may be mounted on a traditional FR4 pcb board which is mounted on and connected to the lead-frame.
  • the lead-frame also includes a system connector moulded into it.
  • the lead frame may also include mouldings adapted to guide the connectors of a stator assembly through the lead frame.
  • the lead frame may also include mouldings adapted to guide the connectors of a stator assembly through the lead frame, for connection to the bare die FETs
  • the lead frame may include integrally moulded portions for housing components of a three hall effect sensor.
  • a support frame may be provided which together with a closure lid covers the electronics of the motor.
  • Our invention has the advantage of achieving optimum space and conserving costs. It is not necessary, in this construction, to provide a separate housing for the electronics.
  • the casing may be constructed appropriately to be split in order to define a pump rotor sub-assembly and an electronics sub-assembly which can be tested separately and then joined together by the use of simple interconnections.
  • a clamping means may be provided for releasably connecting the pump sub-assembly to the electronics sub-assembly.
  • the clamping means may secure the support frame to a cup shaped housing of the pump sub-assembly.
  • the pump/rotor sub-assembly may comprise a housing for a pump and a rotor assembly attached to the pump and sealed by a can within the pump housing.
  • the pump sub-assembly may comprise a housing for a pump and a rotor assembly attached to the pump and sealed by a can within the pump housing.
  • the electronics sub-assembly may comprise a support frame, a lead frame carrying power components, a printed circuit board carrying electronic components and a closure member.
  • the electronic housing may further include the motor stator windings which may be supported by the support frame and converted to the lead frame.
  • the electronics sub-assembly may further include the motor stator windings which may be supported by the support frame and connected to the lead frame.
  • the support frame may be introduced to the pump housing to place the stator around the rotor whereby the pump, the stator and the electronics are sealed by the pump housing, the support frame and the closure member.
  • the motor with the pump and the motor drive and control electronics is integrated into a single case, preferably a single cast housing.
  • the electric motor driven hydraulic pump illustrated in Figure 1-5 of the accompanying drawings comprises two sub-assemblies 1 and 2.
  • a first of the two sub-assemblies is associated with a casting 3 of cup-shaped outline and the second with a support frame 4 which are clamped together at adjacent ends by a circumferentially extending clamping band 5.
  • the casting 3 defines a housing for the rotor of an electric motor 6 and a pump impeller 7.
  • the impeller 7 is driven by a drive shaft 8 driven by the rotor 9 of the motor and which is enclosed within a stainless steel can 10 which the stator 11 surrounds.
  • the can is preferably manufactured from a non-magnetic material preferably stainless steel.
  • the open end of the casting 3 is closed by the support frame 4 by the clamping action of the band 5 as described above.
  • the support frame is of die cast construction and defines a mounting for a lead frame 12, the support frame 4 and the lead frame 12 include connecting paths from the motor to the electronics for controlling operation of motor 6.
  • the lead frame provides a mounting for a circuit board 14 and also includes a connector 13.
  • the lead frame 12 also includes a moulded bare die FET module indicated at 12' and integrally moulded portions 12" housing a hall effect sensor.
  • the lead frame has additional mouldings 12"' each having an opening through which respective connectors 11' from the motor stator can pass to be joined with the FET leads.
  • the lead frame and electronics are enclosed within an end cover 15.
  • the sub-assembly 1 is built by inserting a further assembly comprising the pump impeller 7 and associated components, the shaft 8, the rotor 9, the pump housing 16 and the can 10. The further assembly being located within the housing 3 and then being secured with a circlip. The completed sub-assembly 1 then forms a stand alone sealed unit in which all the elements of the pump can be hydraulically tested prior to final assembly with the electronics.
  • the sub-assembly 2 is assembled by mounting the board 14 carrying the electronics on the lead frame 12 and then locating the connector 13 of the lead frame through the opening 4' in the support frame 4. Once mounted in this position the bare die FET module is exposed on the side of the lead frame adjacent the support member 4 such as to abut the spigot 4" on the support member 4. A thermal compound may be applied between the abutting surfaces.
  • stator connectors 11' are inserted through respective openings in the support frame 4 and the lead frame 12 to be joined with the FET leads in known manner.
  • the support frame 4 is configured to support the stator 11 in its final position on sub-assembly 2.
  • sub-assembly 2 The final part of sub-assembly 2 is to mount the cover 15 in place by way of a snap fit connection with the edge of the lead frame 12.
  • the completed sub-assembly 2 then forms a stand alone unit in which the electronics and stator can be tested prior to final assembly with the pump assembly.
  • stator 11 of assembly 2 is assembled such as to surround the can 10 of assembly 1.
  • the assembly is completed by securing the clamping band 5 in position to clamp mating faces of the casting 3 and the lead frame 2 into engagement. In this final position, it is notable that the bare die FET module on the lead frame 12 is in contact with the support frame 4 as described above, which serves to help dissipate heat.
  • each of the two sub-assemblies 1 and 2 can be manufactured separately, and tested individually.
  • Each of the two sub-assemblies 1 and 2 can be manufactured at different locations and then both supplied to the customer for final assembly, for example on a vehicle during production.
  • the two sub-assemblies can simply be assembled together and then clamped with mating faces in engagement as described above.
  • stator could be part of sub-assembly 1 and the electronics alone would be a separate sub-assembly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Motor Or Generator Frames (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

This invention relates to improvements in electric motor driven pumps, for example of the type used in hydraulic suspension systems for vehicles. In such a pump, the casing (3) of the motor is extended to include a chamber in which electronics can be housed. A lead-frame assembly (12) is described which retains and connects all the high power components. The casing may be split in order to define a pump rotor sub-assembly (1) and an electronics sub-assembly (2) which can be tested separately and then joined together by the use of simple interconnections.

Description

  • This invention relates to improvements in electric motor driven hydraulic pumps, for example of the type used in hydraulic suspension systems for vehicles.
  • Known electrical motor driven hydraulic pumps are controlled by electronic control units (ECUs) on printed circuit boards (pcbs) which are connected to the motor by some means. The space envelope of these is not optimised and the best cost cannot be achieved due to the need for providing a separate housing for the ECU or pcb.
  • According to our invention in an electric motor driven hydraulic pump the casing of the motor is extended to include a chamber in which electronics can be housed.
  • Due to the limitation of space in the area of the chamber, a lead-frame assembly may be implemented that retains and connects all the high power components, for example including a power-module of bare die FETs.
  • The low power electronics may be mounted on a pcb board which is mounted on and connected to the lead-frame.
  • The low power electronics may be mounted on a traditional FR4 pcb board which is mounted on and connected to the lead-frame.
  • Conveniently the lead-frame also includes a system connector moulded into it. The lead frame may also include mouldings adapted to guide the connectors of a stator assembly through the lead frame. The lead frame may also include mouldings adapted to guide the connectors of a stator assembly through the lead frame, for connection to the bare die FETs Conveniently the lead frame may include integrally moulded portions for housing components of a three hall effect sensor.
  • A support frame may be provided which together with a closure lid covers the electronics of the motor.
  • Our invention has the advantage of achieving optimum space and conserving costs. It is not necessary, in this construction, to provide a separate housing for the electronics.
  • The casing may be constructed appropriately to be split in order to define a pump rotor sub-assembly and an electronics sub-assembly which can be tested separately and then joined together by the use of simple interconnections.
  • A clamping means may be provided for releasably connecting the pump sub-assembly to the electronics sub-assembly.
  • The clamping means may secure the support frame to a cup shaped housing of the pump sub-assembly.
  • The pump/rotor sub-assembly may comprise a housing for a pump and a rotor assembly attached to the pump and sealed by a can within the pump housing. The pump sub-assembly may comprise a housing for a pump and a rotor assembly attached to the pump and sealed by a can within the pump housing. The electronics sub-assembly may comprise a support frame, a lead frame carrying power components, a printed circuit board carrying electronic components and a closure member. The electronic housing may further include the motor stator windings which may be supported by the support frame and converted to the lead frame. The electronics sub-assembly may further include the motor stator windings which may be supported by the support frame and connected to the lead frame. On assembly, the support frame may be introduced to the pump housing to place the stator around the rotor whereby the pump, the stator and the electronics are sealed by the pump housing, the support frame and the closure member.
  • With our invention the motor with the pump and the motor drive and control electronics is integrated into a single case, preferably a single cast housing.
  • Two embodiments of our invention are illustrated in the accompanying drawings in which:-
  • Figure 1 is an end elevation of an electrical motor driven hydraulic pump;
  • Figure 2 is a section on the line 2-2 of figure 1;
  • Figure 3 is a perspective view of the pump with part of the casing removed for clarity;
  • Figure 4 illustrates two sub-assemblies comprising the pump rotor assembly;
  • Figure 5 is an exploded view of part of Figure 4;
  • Figure 6 is an exploded view of a second embodiment; and
  • Figure 7 is a cut-away version of the pump illustrated in Figure 6.
  • The electric motor driven hydraulic pump illustrated in Figure 1-5 of the accompanying drawings comprises two sub-assemblies 1 and 2. A first of the two sub-assemblies is associated with a casting 3 of cup-shaped outline and the second with a support frame 4 which are clamped together at adjacent ends by a circumferentially extending clamping band 5. The casting 3 defines a housing for the rotor of an electric motor 6 and a pump impeller 7. As illustrated the impeller 7 is driven by a drive shaft 8 driven by the rotor 9 of the motor and which is enclosed within a stainless steel can 10 which the stator 11 surrounds. The can is preferably manufactured from a non-magnetic material preferably stainless steel.
  • The open end of the casting 3 is closed by the support frame 4 by the clamping action of the band 5 as described above. The support frame is of die cast construction and defines a mounting for a lead frame 12, the support frame 4 and the lead frame 12 include connecting paths from the motor to the electronics for controlling operation of motor 6. The lead frame provides a mounting for a circuit board 14 and also includes a connector 13. The lead frame 12 also includes a moulded bare die FET module indicated at 12' and integrally moulded portions 12" housing a hall effect sensor. The lead frame has additional mouldings 12"' each having an opening through which respective connectors 11' from the motor stator can pass to be joined with the FET leads. The lead frame and electronics are enclosed within an end cover 15.
  • The sub-assembly 1 is built by inserting a further assembly comprising the pump impeller 7 and associated components, the shaft 8, the rotor 9, the pump housing 16 and the can 10. The further assembly being located within the housing 3 and then being secured with a circlip. The completed sub-assembly 1 then forms a stand alone sealed unit in which all the elements of the pump can be hydraulically tested prior to final assembly with the electronics.
  • The sub-assembly 2 is assembled by mounting the board 14 carrying the electronics on the lead frame 12 and then locating the connector 13 of the lead frame through the opening 4' in the support frame 4. Once mounted in this position the bare die FET module is exposed on the side of the lead frame adjacent the support member 4 such as to abut the spigot 4" on the support member 4. A thermal compound may be applied between the abutting surfaces.
  • The stator connectors 11' are inserted through respective openings in the support frame 4 and the lead frame 12 to be joined with the FET leads in known manner. The support frame 4 is configured to support the stator 11 in its final position on sub-assembly 2.
  • The final part of sub-assembly 2 is to mount the cover 15 in place by way of a snap fit connection with the edge of the lead frame 12. The completed sub-assembly 2 then forms a stand alone unit in which the electronics and stator can be tested prior to final assembly with the pump assembly.
  • As the sub-assemblies 1 and 2 are brought together, the stator 11 of assembly 2 is assembled such as to surround the can 10 of assembly 1. Finally, the assembly is completed by securing the clamping band 5 in position to clamp mating faces of the casting 3 and the lead frame 2 into engagement. In this final position, it is notable that the bare die FET module on the lead frame 12 is in contact with the support frame 4 as described above, which serves to help dissipate heat.
  • The construction described above has the advantage that each of the two sub-assemblies 1 and 2 can be manufactured separately, and tested individually. Each of the two sub-assemblies 1 and 2 can be manufactured at different locations and then both supplied to the customer for final assembly, for example on a vehicle during production. The two sub-assemblies can simply be assembled together and then clamped with mating faces in engagement as described above.
  • In the modified construction illustrated in Figures 6 and 7 the position of the circuit board 14 and the mounting lead frame 12 are the same as for the embodiments Figure 1-5, but a separate FET module 17 is used.
  • It will be appreciated that whilst the sub-assembly 1 can be fully tested for hydraulic integrity in order to test the rotor 9 a slave stator locked to a suitable power source may be employed.
  • In an alternative embodiment (not shown) the stator could be part of sub-assembly 1 and the electronics alone would be a separate sub-assembly.

Claims (15)

  1. An electric motor driven hydraulic pump in which the casing of the motor is extended to include a chamber in which the electronics can be housed.
  2. A pump according to claim 1 in which the pump is provided with a lead-frame assembly (12) that retains and connects all the high power components.
  3. A pump according to claim 2 in which the high power components comprise a power-module of bare die FETs(12').
  4. A pump according to claim 2 or claim 3 in which the low power electronics are mounted on a pcb board which is mounted on and connected to the lead-frame (12).
  5. A pump according to any one of claims 2 to 4 in which the lead-frame (12) includes a single connector (13) moulded into it.
  6. A pump according to any one of claims 2 to 5 in which the lead-frame (12) includes mouldings adapted to guide the connectors (11') of a stator assembly (11) through the lead-frame (12).
  7. A pump according to any one of claims 2 to 6 in which the lead-frame (12) also includes integrally moulded portions for housing components of a three hall effect sensor.
  8. A pump according to any previous claim in which a support frame (4) is provided which, together with a closure lid, covers the electronics of the motor.
  9. A pump according to any previous claim in which the casing is constructed appropriately to be split in order to define a pump rotor sub-assembly (1) and an electronics sub-assembly (2) which can be tested separately and then joined together by use of simple interconnections.
  10. A pump according to claim 9 in which a clamping means (5) is provided for releasably connecting the pump sub-assembly (1) to the electronics sub-assembly (2).
  11. A pump according to claim 10 when dependant on claim 8 in which the clamping means (5) secures the support frame (4) to a cup shaped housing (3) of the pump sub-assembly (1).
  12. A pump according to any one of claims 9 to 11 in which the pump sub-assembly (1) comprises a housing (3) for a pump, and a rotor assembly (9) attached to the pump and sealed by a can within the pump housing (3).
  13. A pump according to any one of claims 9 to 12 in which the electronics sub-assembly (2) comprises a support frame (4), a lead frame (12) carrying power components (12'), a printed circuit board carrying electronic components (14) and a closure member.
  14. A pump according to claim 13 in which the electronics sub-assembly (2) further comprises the motor stator windings which may be supported by the support frame and connected to the lead-frame.
  15. A pump according to claim 13 or 14 when dependant on claim 12 in which the support frame is adapted to be, on assembly of the pump, introduced to the pump housing (1) to place the stator (11) around the rotor whereby the pump, the stator (11) and the electronics are sealed by the pump housing, the support frame (4) and the closure member.
EP20020251514 2001-03-08 2002-03-05 Electric motor driven hydraulic pump Expired - Lifetime EP1239152B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0105641A GB0105641D0 (en) 2001-03-08 2001-03-08 Improvements in electric motor driven hydraulic pumps
GB0105641 2001-03-08

Publications (3)

Publication Number Publication Date
EP1239152A2 true EP1239152A2 (en) 2002-09-11
EP1239152A3 EP1239152A3 (en) 2004-01-02
EP1239152B1 EP1239152B1 (en) 2010-08-18

Family

ID=9910171

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020251514 Expired - Lifetime EP1239152B1 (en) 2001-03-08 2002-03-05 Electric motor driven hydraulic pump

Country Status (3)

Country Link
EP (1) EP1239152B1 (en)
DE (1) DE60237326D1 (en)
GB (1) GB0105641D0 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2418072A (en) * 2004-09-14 2006-03-15 Dana Automotive Ltd Mounting for cooling of electronic components in motor pump assembly
WO2007023014A1 (en) * 2005-08-22 2007-03-01 Robert Bosch Gmbh Centrifugal pump
EP2031313A1 (en) * 2007-08-28 2009-03-04 Deutsche Vortex GmbH & Co. KG Device for turning on and off the circulation pump of a hot water supply
US20150326093A1 (en) * 2012-12-27 2015-11-12 Grundfos Holding A/S Pump unit
US20220112871A1 (en) * 2020-04-01 2022-04-14 Guangdong Junchi Science And Technology Co., Ltd. Electric water pump with control panel mounted in the middle of the water pump
EP2500575B2 (en) † 2011-03-12 2022-05-25 Grundfos Management a/s Heat circulation pump

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0481423A1 (en) * 1990-10-16 1992-04-22 Micropump Corporation Electric pump assembly
DE4411960A1 (en) * 1994-04-07 1995-10-12 Pierburg Gmbh Electronically commutated electric motor avoiding magnetic couplings
EP0733803A2 (en) * 1995-03-22 1996-09-25 Micropump Incorporated Pump motor and motor control
US6065946A (en) * 1997-07-03 2000-05-23 Servo Magnetics, Inc. Integrated controller pump
US6091174A (en) * 1996-06-18 2000-07-18 Wilo Gmbh Electric motor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0481423A1 (en) * 1990-10-16 1992-04-22 Micropump Corporation Electric pump assembly
DE4411960A1 (en) * 1994-04-07 1995-10-12 Pierburg Gmbh Electronically commutated electric motor avoiding magnetic couplings
EP0733803A2 (en) * 1995-03-22 1996-09-25 Micropump Incorporated Pump motor and motor control
US6091174A (en) * 1996-06-18 2000-07-18 Wilo Gmbh Electric motor
US6065946A (en) * 1997-07-03 2000-05-23 Servo Magnetics, Inc. Integrated controller pump

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2418072A (en) * 2004-09-14 2006-03-15 Dana Automotive Ltd Mounting for cooling of electronic components in motor pump assembly
GB2418072B (en) * 2004-09-14 2008-05-07 Dana Automotive Ltd Pump assembly
WO2007023014A1 (en) * 2005-08-22 2007-03-01 Robert Bosch Gmbh Centrifugal pump
EP2031313A1 (en) * 2007-08-28 2009-03-04 Deutsche Vortex GmbH & Co. KG Device for turning on and off the circulation pump of a hot water supply
EP2500575B2 (en) † 2011-03-12 2022-05-25 Grundfos Management a/s Heat circulation pump
US20150326093A1 (en) * 2012-12-27 2015-11-12 Grundfos Holding A/S Pump unit
US10855137B2 (en) 2012-12-27 2020-12-01 Grundfos Holding A/S Pump unit
EP2750266B1 (en) * 2012-12-27 2021-10-20 Grundfos Holding A/S Pump power unit
US20220112871A1 (en) * 2020-04-01 2022-04-14 Guangdong Junchi Science And Technology Co., Ltd. Electric water pump with control panel mounted in the middle of the water pump
US11802565B2 (en) * 2020-04-01 2023-10-31 Guangdong Junchi Science And Technology Co., Ltd. Electric water pump with control panel mounted in the middle of the water pump

Also Published As

Publication number Publication date
EP1239152B1 (en) 2010-08-18
EP1239152A3 (en) 2004-01-02
GB0105641D0 (en) 2001-04-25
DE60237326D1 (en) 2010-09-30

Similar Documents

Publication Publication Date Title
CN209908755U (en) Electric oil pump
US7728472B2 (en) Transmission drive unit with a plug-in electronics module
US6270320B1 (en) Electric motor with a fan wheel, for forming an axial or radial fan
JP5691397B2 (en) Electric pump
JP2003304666A (en) Driver
US6450786B1 (en) Cooling water pump
KR20120050239A (en) Water pump for the vehicle
JP6479995B2 (en) Electronic automobile auxiliary assembly
CN111108667B (en) Pump device with contact element
JP2009254141A (en) Motor for controller integrated electric power steering apparatus and electric power steering apparatus
CN209908756U (en) Electric oil pump
US11750061B2 (en) Compact gear motor
ES2774188T3 (en) Centrifugal pump motor
JP2011525348A (en) Electric machine with stator support for hybrid power transmission
EP1239152B1 (en) Electric motor driven hydraulic pump
JPH0818251A (en) Electronic module
US6479916B1 (en) Method and apparatus for mounting electronic motor controls
US7728470B2 (en) Electric motor
US7061146B2 (en) Drive arrangement with a fixed bearing
KR20020029864A (en) Drive system for an adjustable vehicle part
US6812613B1 (en) Electric motor unit, in particular for motor vehicle, incorporating control electronics
EP1096647A2 (en) Electric motor or generator including fluid cooled electronic components
JP2004320835A (en) Electrically driven hydraulic power steering device
US11936275B2 (en) Pump unit comprising a connector with sintered filter for pressure compensation
JP4221511B2 (en) Electronic control unit integrated hydraulic control device and method of assembling the same

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: A2

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

AX Request for extension of the european patent

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

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

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

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

RIC1 Information provided on ipc code assigned before grant

Ipc: 7F 04D 13/06 B

Ipc: 7F 04C 15/00 B

Ipc: 7F 04B 17/03 A

Ipc: 7F 04B 49/20 B

17P Request for examination filed

Effective date: 20040625

AKX Designation fees paid

Designated state(s): DE ES FR GB IT

17Q First examination report despatched

Effective date: 20051213

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): DE ES FR GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 60237326

Country of ref document: DE

Date of ref document: 20100930

Kind code of ref document: P

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100818

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: ES

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: 20101129

26N No opposition filed

Effective date: 20110519

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 60237326

Country of ref document: DE

Effective date: 20110519

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

Ref country code: FR

Payment date: 20130405

Year of fee payment: 12

Ref country code: GB

Payment date: 20130327

Year of fee payment: 12

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20130829 AND 20130904

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20130905 AND 20130911

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

Effective date: 20140305

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20141128

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: 20140305

Ref country code: FR

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

Effective date: 20140331

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

Ref country code: DE

Payment date: 20190327

Year of fee payment: 18

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 60237326

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: 20201001