EP2796722A1 - Automotive electrical coolant pump with crimped housing - Google Patents
Automotive electrical coolant pump with crimped housing Download PDFInfo
- Publication number
- EP2796722A1 EP2796722A1 EP20130165573 EP13165573A EP2796722A1 EP 2796722 A1 EP2796722 A1 EP 2796722A1 EP 20130165573 EP20130165573 EP 20130165573 EP 13165573 A EP13165573 A EP 13165573A EP 2796722 A1 EP2796722 A1 EP 2796722A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump
- bordering
- section housing
- motor
- housing
- 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
Links
- 239000002826 coolant Substances 0.000 title claims abstract description 46
- 238000007789 sealing Methods 0.000 claims description 15
- 210000002105 tongue Anatomy 0.000 claims description 10
- 230000004323 axial length Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/628—Mounting; Assembling; Disassembling of 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
-
- 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
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/086—Sealings especially adapted for liquid pumps
-
- 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
- F05D2260/00—Function
- F05D2260/30—Retaining components in desired mutual position
- F05D2260/36—Retaining components in desired mutual position by a form fit connection, e.g. by interlocking
Definitions
- the invention refers to an automotive electrical coolant pump for pumping a coolant in a coolant circuit of a car, for example for cooling the cars combustion engine.
- the coolant pump is provided with a pump section comprising a pump wheel and with a motor section comprising a motor rotor and a motor stator.
- the producers of automotive coolant pumps generally provide cooling pumps for many different car manufacturers or engine manufacturers.
- the standard coolant pump type is the impeller pump which is provided with an axial coolant inlet and a tangential coolant outlet.
- the size of the coolant pump and the rotational angle of the tangential coolant outlet with respect to the fixation means of the coolant pump can vary from customer to customer.
- the producer of automotive coolant pumps must provide different variations of one coolant pump model with different rotational angles of the tangential coolant outlet.
- the coolant pump comprises a pump section with a pump wheel and a motor section with a motor rotor and a motor stator.
- the pump housing comprises at least two separate section housings, i.e. the pump section housing and a separate motor section housing which is directly fixed to the pump section housing.
- the pump section housing comprises a central axial coolant inlet and a tangential coolant outlet.
- the tangential coolant outlet needn't be strictly tangential but continues the outlet volute which is typical for an impeller liquid pump.
- the fixation of the pump section housing at the motor section housing is provided by a bordering arrangement.
- the bordering arrangement is defined by a circular fixation bulge at the axial end of one section housing and a corresponding circular bordering ring at the axial end of the other section housing.
- the bordering ring embraces and engages behind the fixation bulge so that the bordering ring and the fixation bulge define a strong axial fixation of the pump section housing at the motor section housing.
- the bordering arrangement generally allows to freely choose the rotational position of the pump section housing with respect to the motor section housing.
- the fixation bulge is provided with at least one chamfer depression and the bordering ring is provided with a corresponding bordering tongue which is projecting into the chamfer depression at the fixation bulge.
- This chamfer/tongue arrangement defines a strong rotational fixation of the pump section housing at the motor section housing.
- the bordering arrangement is relatively simple and can be provided before assembling with relatively large mechanical tolerances because the bordering arrangement is assembled and fixed to each other by a cold forming process step.
- the pump section housing has only to be preassembled, before bordering, to the motor section housing in the desired rotational angle.
- the motor section housing can always be placed in the same rotational position in the bordering tool, no matter in which rotational angle the pump section housing is finally assembled.
- a first positioning tool presses the part of the bordering tongue which is corresponding to and axially in-line with the chamfer depression into the chamfer depression. After this positioning step, the rotational position of the pump section housing with respect to the motor section housing is fixed and can not be changed anymore.
- the bordering ring is bended around the fixation bulge over the entire circumference so that, in cross section, the bordering ring axially engages behind the fixation bulge.
- these two fixation steps can also be provided in one single mechanical fixation step.
- a strong axial and rotational fixation of the pump section housing at the motor section housing can be provided, whereby production and preparation of the bordering elements as well as of the bordering tools are simple and cost-effective. Also the final fixation step is simple, reliable and can be provided with the same machines and tools for different tangential fixation angles of the pump section housing with respect to the motor section housing and its mounting flanges.
- a separate sealing arrangement is provided to provide a liquid tight sealing of the gap between the two section housings.
- the sealing arrangement is axially not overlapping with the bordering arrangement.
- the sealing arrangement and the bordering arrangement have no radial plane in common.
- the axial separation of the sealing arrangement from the bordering arrangement avoids negative mechanical impacts on the sealing arrangement caused by the bordering process. Therefore, the liquid-tight sealing of the joint between the motor section housing and the pump section housing can be guaranteed even after the bordering process.
- the proximal end of the pump section housing is provided with the fixation bulge and the distal end of the motor section housing is provided with the bordering ring.
- two or more chamfer depressions are provided at the fixation bulge.
- Two or more chamfer depressions in connection with the corresponding bordering tongues provide an increased rotational fixation.
- the chamfer depression is provided at the axial end of the fixation bulge which means that the chamfer depression is provided at the position of high radial thickness of the bulge so that the total thickness of the bulge at the depression is not less than the housing wall thickness.
- the housing is not weakened by the depression.
- the figures show an automotive electrical coolant pump 10 for pumping a liquid coolant, for example water, to an internal combustion engine of an automotive vehicle.
- the pump 10 is driven by an electric motor which is electronically commutated.
- the coolant flows through the coolant inlet 24 into the axial pump wheel inlet 22 and is forced by the rotating pump wheel 40 radially outwardly into an outlet volute 28 from where the coolant leaves the pump 10 through the tangential coolant outlet 26.
- the pump wheel 40 is supported by a rotatable rotor shaft 62 which also supports the permanent magnetic motor rotor 52.
- the axial proximal end of the pump section housing 42 is fixed at the motor section housing 44 by a bordering arrangement 20 which is shown in detail in figures 4a and 4b .
- the bordering arrangement 20 is generally circular and is defined by a circular fixation bulge 36 at the radial outside surface of a cylindrical end section 47 of the pump section housing 42 and by a circular bordering ring 34 embracing - seen in cross section - the fixation bulge 36.
- the bordering ring 34 is provided at the axial end of the motor section housing 44 but not necessarily at the edge of the housing opening.
- the bordering arrangement 20 is provided with three chamfer fixations 21 positioned in a rotational angle of 120° to each other.
- the chamfer fixations 21 are defined by a chamfer depression 37 at the root of the fixation bulge 36 and by a corresponding bordering tongue 38 of the bordering ring 34.
- the bordering tongues 38 are projecting into the corresponding chamfer depression 37, respectively.
- the circular cylindrical end section 47 of the pump section housing 42 surrounds the corresponding circular cylindrical end section 47 of the motor section housing 44.
- the corresponding circular cylindrical end section 49 of the motor section housing 44 has an axial length x of at least 20 mm.
- the axial length y of the bordering arrangement 20 is less than half of the axial length x of the cylindrical end section of the motor section housing 44.
- a sealing arrangement 31 is provided defined by a circular sealing groove 33 in the end section 49 of the motor section housing 44 and a circular flexible sealing ring 32 within the sealing groove 33. Seen in axial direction, the sealing arrangement 31 is not overlapping with the bordering arrangement 20.
- the control section housing 46 is fixed at the motor section housing 44 by a bordering arrangement 18 similar or substantially identical to the bordering arrangement 20 between the pump section housing 42 and the motor section housing 44.
- the bordering arrangement 20 is assembled by axially shifting the pump section housing 42 onto the corresponding axial end 49 of the motor section housing 44. After that, a fixation tool forces the corresponding parts of the open bordering ring 34 into the corresponding chamfer depressions 37 to define three bordering tongues 38 projecting into the corresponding chamfer depressions 37. Finally the bordering ring is completely bordered around the fixation bulge 36 over the entire circumference.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
- The invention refers to an automotive electrical coolant pump for pumping a coolant in a coolant circuit of a car, for example for cooling the cars combustion engine.
- The coolant pump is provided with a pump section comprising a pump wheel and with a motor section comprising a motor rotor and a motor stator. The producers of automotive coolant pumps generally provide cooling pumps for many different car manufacturers or engine manufacturers. The standard coolant pump type is the impeller pump which is provided with an axial coolant inlet and a tangential coolant outlet. The size of the coolant pump and the rotational angle of the tangential coolant outlet with respect to the fixation means of the coolant pump can vary from customer to customer. As a consequence, the producer of automotive coolant pumps must provide different variations of one coolant pump model with different rotational angles of the tangential coolant outlet.
-
EP 2 469 1 02 A1 discloses a coolant pump with a pump section housing separate from the motor section housing, wherein the two section housings are fixed to each other by a snap-mechanism. The rotational position of the pump section housing can be varied with relatively little constructional efforts. However, the construction of the snap mechanism is somehow complex and expensive. - It is an object of the present invention to provide an automotive coolant pump with a simple and inexpensive construction for providing the coolant pump with different rotational angles of the tangential coolant outlet.
- This object is solved with a coolant pump with the features of claim 1.
- The coolant pump comprises a pump section with a pump wheel and a motor section with a motor rotor and a motor stator. The pump housing comprises at least two separate section housings, i.e. the pump section housing and a separate motor section housing which is directly fixed to the pump section housing. The pump section housing comprises a central axial coolant inlet and a tangential coolant outlet. The tangential coolant outlet needn't be strictly tangential but continues the outlet volute which is typical for an impeller liquid pump.
- The fixation of the pump section housing at the motor section housing is provided by a bordering arrangement. The bordering arrangement is defined by a circular fixation bulge at the axial end of one section housing and a corresponding circular bordering ring at the axial end of the other section housing. The bordering ring embraces and engages behind the fixation bulge so that the bordering ring and the fixation bulge define a strong axial fixation of the pump section housing at the motor section housing. The bordering arrangement generally allows to freely choose the rotational position of the pump section housing with respect to the motor section housing.
- The fixation bulge is provided with at least one chamfer depression and the bordering ring is provided with a corresponding bordering tongue which is projecting into the chamfer depression at the fixation bulge. This chamfer/tongue arrangement defines a strong rotational fixation of the pump section housing at the motor section housing. The bordering arrangement is relatively simple and can be provided before assembling with relatively large mechanical tolerances because the bordering arrangement is assembled and fixed to each other by a cold forming process step.
- For varying the rotational angle of the pump section housing with respect to the motor section housing, the pump section housing has only to be preassembled, before bordering, to the motor section housing in the desired rotational angle. The motor section housing can always be placed in the same rotational position in the bordering tool, no matter in which rotational angle the pump section housing is finally assembled. After the pump section housing is pre-assembled, a first positioning tool presses the part of the bordering tongue which is corresponding to and axially in-line with the chamfer depression into the chamfer depression. After this positioning step, the rotational position of the pump section housing with respect to the motor section housing is fixed and can not be changed anymore. In the following bordering step, the bordering ring is bended around the fixation bulge over the entire circumference so that, in cross section, the bordering ring axially engages behind the fixation bulge. Alternatively, these two fixation steps can also be provided in one single mechanical fixation step.
- With the present concept of a bordering arrangement a strong axial and rotational fixation of the pump section housing at the motor section housing can be provided, whereby production and preparation of the bordering elements as well as of the bordering tools are simple and cost-effective. Also the final fixation step is simple, reliable and can be provided with the same machines and tools for different tangential fixation angles of the pump section housing with respect to the motor section housing and its mounting flanges.
- Preferably, a separate sealing arrangement is provided to provide a liquid tight sealing of the gap between the two section housings. The sealing arrangement is axially not overlapping with the bordering arrangement. In other words, the sealing arrangement and the bordering arrangement have no radial plane in common. The axial separation of the sealing arrangement from the bordering arrangement avoids negative mechanical impacts on the sealing arrangement caused by the bordering process. Therefore, the liquid-tight sealing of the joint between the motor section housing and the pump section housing can be guaranteed even after the bordering process.
- According to a preferred embodiment of the invention, the proximal end of the pump section housing is provided with the fixation bulge and the distal end of the motor section housing is provided with the bordering ring.
- According to another preferred embodiment of the invention, two or more chamfer depressions are provided at the fixation bulge. Two or more chamfer depressions in connection with the corresponding bordering tongues provide an increased rotational fixation.
- Preferably, the chamfer depression is provided at the axial end of the fixation bulge which means that the chamfer depression is provided at the position of high radial thickness of the bulge so that the total thickness of the bulge at the depression is not less than the housing wall thickness. The housing is not weakened by the depression.
- According to a preferred embodiment, a motor control section is provided which comprises a separate control section housing which is fixed to the motor section housing by a second bordering arrangement which can be designed similar or identical to the bordering arrangement between the motor section housing and the pump section housing.
- One embodiment of the invention is described with reference to the enclosed drawings, wherein
-
figures 1 shows a longitudinal section of an electrical automotive coolant pump with a motor section housing and a pump section housing which are fixed to each other by a bordering arrangement, -
figure 2 shows a side view of the coolant pump offigure 1 , -
figure 3 shows a front view of the pump and of the coolant section housing offigure 1 , -
figure 4a shows an enlarged cross section of the bordering arrangement of the coolant pump offigure 1 , and -
figure 4b shows the bordering arrangement offigure 4A including a bordering tongues projecting into a corresponding chamfer depression. - The figures show an automotive
electrical coolant pump 10 for pumping a liquid coolant, for example water, to an internal combustion engine of an automotive vehicle. Thepump 10 is driven by an electric motor which is electronically commutated. - The
pump 10 comprises, seen in axial direction, three lengthwise sections: apump section 12 with apump wheel 40, amotor section 14 with amotor rotor 52 and with amotor stator 50, and acontrol section 16 comprising an electronicmotor control board 48 in a separatecontrol electronics chamber 64. The threesections control section housing 46 defining the control electronics chamber 62a, themotor section housing 44 surrounding a ring-like stator cavity 45 withseveral motor stators 50, and apump section housing 42 with anaxial coolant inlet 24 and atangential coolant outlet 26. The motor section housing 44 and thecontrol section housing 46 are made of metal, for example of aluminum or of steel. Thepump section housing 42 is preferably made of plastics. - The coolant flows through the
coolant inlet 24 into the axialpump wheel inlet 22 and is forced by the rotatingpump wheel 40 radially outwardly into an outlet volute 28 from where the coolant leaves thepump 10 through thetangential coolant outlet 26. Thepump wheel 40 is supported by arotatable rotor shaft 62 which also supports the permanentmagnetic motor rotor 52. - The axial proximal end of the
pump section housing 42 is fixed at themotor section housing 44 by a borderingarrangement 20 which is shown in detail infigures 4a and 4b . The borderingarrangement 20 is generally circular and is defined by acircular fixation bulge 36 at the radial outside surface of acylindrical end section 47 of thepump section housing 42 and by a circular borderingring 34 embracing - seen in cross section - thefixation bulge 36. The borderingring 34 is provided at the axial end of the motor section housing 44 but not necessarily at the edge of the housing opening. - The bordering
arrangement 20 is provided with threechamfer fixations 21 positioned in a rotational angle of 120° to each other. Thechamfer fixations 21 are defined by achamfer depression 37 at the root of thefixation bulge 36 and by a corresponding borderingtongue 38 of the borderingring 34. The borderingtongues 38 are projecting into thecorresponding chamfer depression 37, respectively. - The circular
cylindrical end section 47 of thepump section housing 42 surrounds the corresponding circularcylindrical end section 47 of themotor section housing 44. The corresponding circularcylindrical end section 49 of themotor section housing 44 has an axial length x of at least 20 mm. The axial length y of the borderingarrangement 20 is less than half of the axial length x of the cylindrical end section of themotor section housing 44. In the bordering-free axial section of thecylindrical end section 47 of the pump section housing 42 asealing arrangement 31 is provided defined by acircular sealing groove 33 in theend section 49 of themotor section housing 44 and a circularflexible sealing ring 32 within the sealinggroove 33. Seen in axial direction, the sealingarrangement 31 is not overlapping with the borderingarrangement 20. - The
control section housing 46 is fixed at themotor section housing 44 by a borderingarrangement 18 similar or substantially identical to the borderingarrangement 20 between thepump section housing 42 and themotor section housing 44. - The bordering
arrangement 20 is assembled by axially shifting thepump section housing 42 onto the correspondingaxial end 49 of themotor section housing 44. After that, a fixation tool forces the corresponding parts of the openbordering ring 34 into the correspondingchamfer depressions 37 to define three borderingtongues 38 projecting into the correspondingchamfer depressions 37. Finally the bordering ring is completely bordered around thefixation bulge 36 over the entire circumference.
Claims (5)
- An automotive electrical coolant pump (10) comprising a pump section (12) with a pump wheel (40) and a motor section (14) with a motor rotor (52) and a motor stator (50), wherein
a pump housing comprises a pump section housing (42) and a separate motor section housing (44) which is fixed to the pump section housing (42),
the pump section housing (42) comprises an axial coolant inlet (24) and a tangential coolant outlet (26),
the fixation of the pump section housing (42) with the motor section housing (44) is provided by a bordering arrangement (20),
the bordering arrangement (20) is defined by a circular fixation bulge (36) at the axial end of one section housing (42) and a circular bordering ring (34) at the axial end of the other section housing (44),
the bordering ring (34) embraces the fixation bulge (36),
the fixation bulge (36) is provided with at least one chamfer depression (37), and
a bordering tongue (38) of the bordering ring (34) is projecting into the chamfer depression (37). - The automotive electrical coolant pump (10) of claim 1, wherein a separate sealing arrangement (31) is provided to provide a liquid-tight sealing and the sealing arrangement (31) is axially not overlapping with a the bordering arrangement (20).
- The automotive electrical coolant pump (10) of one of the preceding claims, wherein the proximal end of the pump section housing (42) is provided with the fixation bulge (36) and the distal end of the motor section housing (44) is provided with the bordering ring (34).
- The automotive electrical coolant pump (10) of one of the preceding claims, wherein two or more chamfer depressions (37) and corresponding bordering tongues (38) are provided.
- The automotive electrical coolant pump (10) of one of the preceding claims, wherein a motor control section (16) is provided which comprises a separate control section housing (46) which is fixed to the motor section housing (44) by another bordering arrangement (18).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13165573.0A EP2796722B1 (en) | 2013-04-26 | 2013-04-26 | Automotive electrical coolant pump with crimped housing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13165573.0A EP2796722B1 (en) | 2013-04-26 | 2013-04-26 | Automotive electrical coolant pump with crimped housing |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2796722A1 true EP2796722A1 (en) | 2014-10-29 |
EP2796722B1 EP2796722B1 (en) | 2016-03-16 |
Family
ID=48190276
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13165573.0A Active EP2796722B1 (en) | 2013-04-26 | 2013-04-26 | Automotive electrical coolant pump with crimped housing |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP2796722B1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017140334A1 (en) | 2016-02-15 | 2017-08-24 | Pierburg Pump Technology Gmbh | Automotive electrical coolant pump |
EP3242031A1 (en) * | 2016-05-03 | 2017-11-08 | Robert Bosch GmbH | Fixing of a pump cover by notches formed in a casing wall, said notches engaging a shoulder of the cover |
WO2017220119A1 (en) | 2016-06-20 | 2017-12-28 | Pierburg Pump Technology Gmbh | Electric fluid pump for a motor vehicle |
DE202018101223U1 (en) * | 2018-03-05 | 2019-06-06 | Evoguard Gmbh | Housing for a centrifugal pump, centrifugal pump with housing and filling system comprising such a centrifugal pump |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4961018A (en) * | 1989-08-11 | 1990-10-02 | Wayne/Scott Fetzer Company | Enclosed pump motor and wiring thereof |
DE19646617A1 (en) * | 1996-11-12 | 1998-05-14 | Pierburg Ag | Coolant pump with electrically commutated electric motor e.g. for IC engine |
EP1635064A1 (en) * | 2004-09-14 | 2006-03-15 | Dana Automotive Limited | Pump assembly |
DE102006039712A1 (en) * | 2006-08-24 | 2008-02-28 | Robert Bosch Gmbh | Delivery system has pump housing and front side pump cover, which has flanged edge, which is gripped from behind by end section of pump housing, where pump cover has recess spaced from each other in peripheral direction |
EP2469102A1 (en) | 2010-12-22 | 2012-06-27 | Pierburg Pump Technology GmbH | Motor vehicle coolant pump |
-
2013
- 2013-04-26 EP EP13165573.0A patent/EP2796722B1/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4961018A (en) * | 1989-08-11 | 1990-10-02 | Wayne/Scott Fetzer Company | Enclosed pump motor and wiring thereof |
DE19646617A1 (en) * | 1996-11-12 | 1998-05-14 | Pierburg Ag | Coolant pump with electrically commutated electric motor e.g. for IC engine |
EP1635064A1 (en) * | 2004-09-14 | 2006-03-15 | Dana Automotive Limited | Pump assembly |
DE102006039712A1 (en) * | 2006-08-24 | 2008-02-28 | Robert Bosch Gmbh | Delivery system has pump housing and front side pump cover, which has flanged edge, which is gripped from behind by end section of pump housing, where pump cover has recess spaced from each other in peripheral direction |
EP2469102A1 (en) | 2010-12-22 | 2012-06-27 | Pierburg Pump Technology GmbH | Motor vehicle coolant pump |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017140334A1 (en) | 2016-02-15 | 2017-08-24 | Pierburg Pump Technology Gmbh | Automotive electrical coolant pump |
EP3242031A1 (en) * | 2016-05-03 | 2017-11-08 | Robert Bosch GmbH | Fixing of a pump cover by notches formed in a casing wall, said notches engaging a shoulder of the cover |
WO2017220119A1 (en) | 2016-06-20 | 2017-12-28 | Pierburg Pump Technology Gmbh | Electric fluid pump for a motor vehicle |
US10935028B2 (en) | 2016-06-20 | 2021-03-02 | Pierburg Pump Technology Gmbh | Electric fluid pump for a motor vehicle |
DE202018101223U1 (en) * | 2018-03-05 | 2019-06-06 | Evoguard Gmbh | Housing for a centrifugal pump, centrifugal pump with housing and filling system comprising such a centrifugal pump |
Also Published As
Publication number | Publication date |
---|---|
EP2796722B1 (en) | 2016-03-16 |
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