CN110017287B - Centrifugal pump assembly with electric motor - Google Patents

Centrifugal pump assembly with electric motor Download PDF

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Publication number
CN110017287B
CN110017287B CN201910022036.2A CN201910022036A CN110017287B CN 110017287 B CN110017287 B CN 110017287B CN 201910022036 A CN201910022036 A CN 201910022036A CN 110017287 B CN110017287 B CN 110017287B
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CN
China
Prior art keywords
housing
pump assembly
centrifugal pump
cassette
electric motor
Prior art date
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Active
Application number
CN201910022036.2A
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Chinese (zh)
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CN110017287A (en
Inventor
F·思尼克
恩里科·特伦汀
米歇尔·卡波钦
朱塞佩·迪乔瓦尼
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DAB Pumps SpA
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DAB Pumps SpA
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Publication date
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Publication of CN110017287A publication Critical patent/CN110017287A/en
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    • 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
    • F04D29/007—Details, component parts, or accessories 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
    • F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal 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
    • 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
    • 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
    • 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
    • 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
    • F04D13/0693—Details or arrangements of the wiring
    • 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/406—Casings; Connections of working fluid 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
    • F04D29/40—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
    • F04D29/40—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
    • F04D29/428—Discharge tongues
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/5806—Cooling the drive system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Compressor (AREA)

Abstract

The invention relates to a centrifugal pump assembly having an electric motor. A centrifugal pump assembly (10) having an electric motor (11) arranged in a housing (61), the assembly (10) comprising at one end a wet portion (51) formed by a volute (64) and housing an impeller (52), and at the other end a cassette (13) of electrical plates (14) in contact with one end of the housing (61). The electric motor (11) is of permanent magnet brushless type, and the housing (61) is made of stainless steel.

Description

Centrifugal pump assembly with electric motor
Technical Field
The present invention relates to a centrifugal pump assembly having an electric motor.
Background
In water circulation pumps for domestic systems, the motors used are generally of the asynchronous type, the motor housing being made of aluminium.
An electrical board (electrical board) contained within the case provides power to and controls the operation of the motor.
The choice of aluminium to provide the housing depends on its sufficient capacity to dissipate the heat generated by the asynchronous motor.
However, this background art has an aspect that can be improved.
Disclosure of Invention
In fact, aluminum has good heat dissipation capacity, but it must be treated to avoid oxidation, corrosion and wear, such as for example the electrophoresis process.
A set of operations suitable for rendering the aluminium of the motor housing resistant to oxidation, corrosion and wear requires long production cycles, logistical complexities (associated both with the management of the space for providing the various steps and the storage space between the various steps of the cycle) and considerable costs.
It is an object of the present invention to provide a pump assembly which is capable of improving the background art in one or more of the above aspects.
Within this aim, an object of the invention is to provide a pump assembly with a motor housing which does not require subsequent treatment to avoid oxidation, corrosion and wear.
Another object of the present invention is to provide a pump assembly with a motor housing, which is provided according to a simpler production cycle and by reducing the logistical complexity associated therewith, with respect to known types of pump assemblies.
It is a further object of the present invention to provide a pump assembly having a motor that generates less heat than known types.
It is another object of the present invention to provide a pump assembly that allows for an efficient connection method between the electrical box and the motor housing.
Furthermore, it is an object of the present invention to overcome the disadvantages of the background art in a manner that can replace any existing solution.
Another object of the present invention is to provide a pump assembly which is highly reliable, relatively simple to provide and at competitive costs.
This aim and these and other objects that will become better apparent hereinafter are achieved by a centrifugal pump assembly having an electric motor arranged in a casing, which assembly comprises, at one end, a wet portion formed by a volute and housing an impeller, and, at the other end, a box in contact with one end of said casing, which box houses an electric board, characterized in that said electric motor is of the permanent-magnet brushless type and in that said casing is made of stainless steel.
According to a further aspect of the invention, the casing is cup-shaped, having a base comprising one or more elastically deformable elements adapted to generate thrust against one or more corresponding pins arranged on a surface of the box facing the base.
According to a further aspect of the invention, the casing is provided with a peripheral annular projection provided with a plurality of through holes suitable for inserting screws for fixing the casing to the body of the volute.
According to yet another aspect of the invention, in yet another aspect of the invention, the base is provided with an opening adapted to be inserted by a terminal of the electric motor connected to the electric board.
According to yet another aspect of the invention, the base is provided with a hole for access to the wet end and partially to the stator of the electric motor.
According to a further aspect of the invention, the base of the housing of the electric motor is close to the free extremity of the tubular end of the clearance sleeve.
According to yet another aspect of the invention, the cartridge and the housing have contact surfaces complementary to each other.
According to a further aspect of the invention, a sealing element co-moulded with the cartridge is present between the housing and the cartridge.
Drawings
Further features and advantages of the invention will become more apparent from the description of a preferred, but not exclusive, embodiment of the pump assembly according to the invention, illustrated by way of non-limiting example in the accompanying drawings, in which:
FIG. 1 is an overall exploded view of a pump assembly according to the present invention;
FIG. 2 is a cross-sectional view of a pump assembly according to the present invention;
FIG. 3 is a cross-sectional view of a detail of the pump assembly of FIG. 2;
FIGS. 4a and 4b are detailed views of two parts of the pump assembly of FIG. 1;
FIG. 5 is a sectional view of a detail of a pump assembly according to the present invention.
Detailed Description
Referring to the referenced drawings, a centrifugal pump assembly having an electric motor in accordance with the present invention is generally indicated by reference numeral 10.
The centrifugal pump assembly 10 comprises, at one end, a wet portion 51 provided with a suction duct 62 and a delivery duct 63, and a volute 64, of a known type, and an impeller 52, the impeller 52 being immersed in said wet portion.
The impeller 52 is keyed on the shaft 17 of the electric motor 11, the electric motor 11 being composed of a stator 12 and a rotor 18.
In particular, the electric motor 11 is of the brushless permanent-magnet type.
The pump assembly 10 includes a gap sleeve (gap sleeve) 53.
The clearance sleeve 53 is constituted by a tubular body portion 55 having a flange end 54 facing the impeller 52 and a tubular end 56 in which the cross section is tapered relative to the cross section of the body 55 and has a diameter smaller than that of the body 55, the flange end 54 being opposite the impeller 52.
The clearance sleeve 53 has an extension axis X coinciding with the extension axis of the pump body, which coincides with the rotation axis of the rotor 18 and of the impeller 52.
In some cases, the extension axis of the clearance sleeve 53 may not coincide with the extension axis of the pump main body.
The centrifugal pump assembly 10 includes an electrical box 13 at the other end, the electrical box 13 housing an electrical plate 14 adapted to control and supply power to the electric motor.
The electric motor 11 and in particular the stator 12 thereof is externally closed by a casing 61.
In particular, the housing 61 is cup-shaped, with a base 67 close to the free extremity of the tubular end portion 56 of the clearance sleeve 53.
The extension axis of the housing coincides with the extension axis X of the pump body.
The base 67 is provided with holes 66 to allow access to the wet end and partially to the stator 12.
Furthermore, the base 67 has an opening 68, which opening 68 is adapted to be inserted in the terminal 25 of the electric motor 11 connected to the electric board 14.
The housing 61 has one end in contact with the electrical box 13.
The housing 61 has, at the end opposite to the end for contact with the electrical box 13, a peripheral annular projection 31, the peripheral annular projection 31 having a plurality of through holes 32, the plurality of through holes 32 being suitable for the insertion of screws 34 for fixing the housing 61 to the body of the volute 64.
The present invention is characterized in that the case 61 is made of stainless steel.
Stainless steel has a lower heat dissipation capacity than aluminum, but the use of permanent magnet brushless motor 11 results in less heat generation than an asynchronous motor, and therefore less heat dissipation requirements.
The stainless steel of the housing 61 adequately meets this lower requirement.
Furthermore, the use of stainless steel eliminates the need for additional treatment to resist corrosion, oxidation and wear.
This determines shorter production times and less logistical difficulties with respect to similar aluminium casings.
A sealing element 69 is present between the housing 61 and the electrical box 13, made of, for example, rubber, and co-molded with the electrical box 13.
The feature that the housing 61 is made of stainless steel results in an adequate seal with the element 69.
It should be noted that if the housing 61 is made of aluminium, it will be necessary to machine the area for engagement with the sealing element in order to locally remove the electrophoretic treatment and provide sufficient roughness.
Due to the presence of the intermediate element 16, the housing 61 and the electrical box 13 are connected and integrated.
The intermediate element 16 is a connecting and/or covering element and has a tubular shape.
The electrical box 13 and the housing 61 for accommodating the stator 12 have mutually complementary contact surfaces.
The intermediate element 16 is provided with parts adapted on one side to be complementary to parts of the electrical box 13 and on the other side to be complementary to parts of the housing 61 for housing the stator 12, so as to produce the coupling by interference interlock.
Advantageously, the intermediate element 16 can even fix the box 13 to the housing 61 containing the stator in a different way.
The intermediate element 16 is provided with seats and/or holes 20 suitable for the insertion of projections 21, which projections 21 are conveniently shaped on the lateral surface of the electrical box 13, parallel to the rotation axis X of the impeller, so as to create an interlocking coupling.
Also, with reference to fig. 3, elements such as, for example, the teeth 22 are present on the intermediate element 16 on an internal tubular surface and are adapted to generate interference with elements such as, for example, the projections 23 being conveniently profiled (constrained) on a lateral, external surface of the casing 61 parallel to the rotation axis X of the impeller.
With reference to fig. 4a, 4b and 5, there are also elastically deformable elements 70 on the base 67, such as for example leaf springs or bending springs (three in the example shown), which have a substantially rectangular shape.
The springs 70 are provided, for example, by through blanking from the base 67 and are adapted to generate a thrust on corresponding pins 71, the pins 71 being present on a surface 72 of the box 13 facing the base 67 and visible in fig. 4b and 5.
The thrust of the element 70 against the respective pin 71 ensures a sufficient coupling between the housing 61 and the box 13, since it allows to maintain, over time, the contact between the teeth 22 present on the inner tubular surface of the intermediate element 16 and the projections 23 of the housing 61.
The presence of elastically deformable element 70 integrates the thrust generated by sealing element 69, sealing element 69 being made of plastic, susceptible to ageing and therefore becoming harder.
One or more first axial pins 28 extend from the electrical box 13 and are adapted to be inserted in corresponding through holes 29 provided on the surface of the housing 61 of the stator 12 in contact with said electrical box 13.
These pins are adapted to connect the box 13 and the housing 61 of the stator 12 and to facilitate assembly of the pump 10.
Likewise, the box 13 has one or more second pins 30, the second pins 30 extending inside the box 13 in the direction of a cover 15 for closing the box 13.
The ends of the second pins 30 are adapted to be inserted in corresponding holes provided on the surface of the cover 15 directed towards the inside of the box 13.
The pins are adapted to connect the cassette 13 and the cover 15 and to facilitate assembly of the pump 10.
It should be noted that the housing containing the stator, made of stainless steel, eliminates the need for treatments for corrosion, oxidation and wear, allowing shorter production cycles and simpler logistics.
It should also be noted that a housing made of stainless steel that houses the stator reduces production costs by eliminating the need for corrosion, oxidation and wear resistant treatments.
Furthermore, it should be noted that the contact of the housing containing the stator made of steel with the clearance sleeve also made of steel allows a better grounding due to the steel-to-steel contact, without the need to locally remove the electrophoretic treatment in the region of the joint with the clearance sleeve, which would otherwise occur in the case of an aluminium housing.
In practice it has been found that the invention achieves the intended aim and objects, a centrifugal pump assembly is provided having an electric motor arranged in a casing, which assembly comprises, at one end, a wet portion formed by a volute and housing an impeller, and, at the other end, a box housing an electric plate in contact with one end of the casing, characterized in that the electric motor is of the permanent-magnet brushless type and in that the casing is made of stainless steel.
The invention thus conceived is susceptible of numerous modifications and variations, all of which are within the scope of the appended claims; all the details may further be replaced with other technically equivalent elements.
In practice, the materials used, provided they are compatible with the specific use, as well as the contingent shapes and dimensions, may be any according to requirements and to the state of the art.

Claims (14)

1. A centrifugal pump assembly (10) having a permanent magnet brushless-type electric motor (11) arranged in a stainless steel housing (61), the centrifugal pump assembly (10) comprising
A wet section (51) at one end formed by a volute (64) and housing an impeller (52), and
a box (13) housing an electrical board (14) at the other end, the box (13) being in contact with one end of the housing (61), characterized in that,
the box (13) comprises a projection (21) on a surface lateral and parallel to the axis of rotation X of the impeller (52), and
the housing (61) is cup-shaped, has a base (67) and comprises
One or more elastically deformable elements (70) adapted to generate an thrust on one or more corresponding pins (71) arranged on a surface (72) of the box (13) facing the base (67), and
a projection (23), wherein the projection (23) is formed on a lateral, outer surface of the housing (61) that is parallel to the rotational axis X of the impeller (52),
wherein the centrifugal pump assembly (10) comprises
An intermediate element (16) having a tubular shape, said intermediate element being provided with
A seat (20) adapted for the insertion of said protrusion (21), creating an interlocking coupling with said box (13), and said intermediate element being provided with
A tooth (22), said tooth (22) being adapted to generate an interference with said protrusion (23),
to connect the case (61) and the cartridge (13) and to integrate the case (61) and the cartridge (13).
2. Centrifugal pump assembly (10) according to claim 1, wherein the housing (61) is provided with a peripheral annular projection (31) provided with a plurality of through holes (32) suitable for inserting screws (34) for fixing the housing (61) to the body of the volute (64).
3. Centrifugal pump assembly (10) according to claim 1, wherein the base (67) is provided with an opening (68), said opening (68) being adapted to be inserted by a terminal (25) of the electric motor (11) connected to the electric board (14).
4. Centrifugal pump assembly (10) according to claim 2, characterized in that the base (67) is provided with an opening (68), the opening (68) being adapted to be inserted by a terminal (25) of the electric motor (11) connected to the electric board (14).
5. Centrifugal pump assembly (10) according to any one of claims 1-4, characterized in that the base (67) is provided with a hole (66), which hole (66) is intended to be close to the wet end (51) and partly to the stator (12) of the electric motor (11).
6. Centrifugal pump assembly (10) according to any one of claims 1-4, characterized in that the base (67) of the housing (61) of the electric motor (11) is close to the free extremity of the tubular end (56) of the clearance sleeve (53).
7. The centrifugal pump assembly (10) according to claim 5, wherein the base (67) of the housing (61) of the electric motor (11) is close to a free extremity of a tubular end (56) of a clearance sleeve (53).
8. A centrifugal pump assembly (10) according to any one of claims 1-4 and 7, wherein the cassette (13) and the housing (61) have contact surfaces that are complementary to each other.
9. The centrifugal pump assembly (10) according to claim 5, wherein the cassette (13) and the housing (61) have contact surfaces that are complementary to each other.
10. Centrifugal pump assembly (10) according to claim 6, wherein the cassette (13) and the housing (61) have contact surfaces complementary to each other.
11. A centrifugal pump assembly (10) according to any one of claims 1-4, 7 and 9-10, wherein a sealing element (69) co-moulded with the cassette (13) is present between the housing (61) and the cassette (13).
12. The centrifugal pump assembly (10) according to claim 5, wherein a sealing element (69) co-molded with the cassette (13) is present between the housing (61) and the cassette (13).
13. Centrifugal pump assembly (10) according to claim 6, characterized in that a sealing element (69) co-molded with the cassette (13) is present between the housing (61) and the cassette (13).
14. The centrifugal pump assembly (10) of claim 8, wherein a sealing element (69) co-molded with the cassette (13) is present between the housing (61) and the cassette (13).
CN201910022036.2A 2018-01-10 2019-01-10 Centrifugal pump assembly with electric motor Active CN110017287B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102018000000660 2018-01-10
IT201800000660A IT201800000660A1 (en) 2018-01-10 2018-01-10 PUMP ASSEMBLY WITH PERFECTED HOUSING HOUSING OF THE ELECTRIC MOTOR

Publications (2)

Publication Number Publication Date
CN110017287A CN110017287A (en) 2019-07-16
CN110017287B true CN110017287B (en) 2022-06-14

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Application Number Title Priority Date Filing Date
CN201910022036.2A Active CN110017287B (en) 2018-01-10 2019-01-10 Centrifugal pump assembly with electric motor

Country Status (5)

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US (1) US20190211831A1 (en)
EP (1) EP3511573B1 (en)
CN (1) CN110017287B (en)
ES (1) ES2925178T3 (en)
IT (1) IT201800000660A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD884033S1 (en) * 2018-02-20 2020-05-12 Dab Pumps S.P.A. Electro-pump
EP3821972B1 (en) * 2019-11-12 2024-07-10 Fresenius Medical Care Deutschland GmbH Filter module for filtering a biotechnological fluid and use of a filter module for filtering a biotechnological fluid

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09209973A (en) * 1996-09-05 1997-08-12 Hitachi Ltd Submersible motor
DE19824345A1 (en) * 1998-06-02 1999-12-09 Wilo Gmbh Canned tube pump with winding carrier
EP1063751B1 (en) * 1999-06-22 2008-10-22 Grundfos A/S Pump unit
PT2322807E (en) * 2007-01-18 2014-02-12 Grundfos Management As Pump unit
PL2500578T3 (en) * 2011-03-12 2019-04-30 Grundfos Man A/S Heat circulation pump
PL2500577T3 (en) * 2011-03-12 2016-12-30 Heat circulation pump
KR101332853B1 (en) * 2013-05-09 2013-11-27 엔엔엔코리아(주) Electric water pump with cooling unit for vehicles
EP2818721B1 (en) * 2013-06-24 2019-02-20 Grundfos Holding A/S Centrifugal pump
DE102013018317A1 (en) * 2013-10-30 2015-04-30 Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg Electric machine

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EP3511573A1 (en) 2019-07-17
EP3511573B1 (en) 2022-08-03
CN110017287A (en) 2019-07-16
US20190211831A1 (en) 2019-07-11
ES2925178T3 (en) 2022-10-14
IT201800000660A1 (en) 2019-07-10

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