WO2019174773A1 - Système modulaire d'une structure de pompe axialement intégrée - Google Patents

Système modulaire d'une structure de pompe axialement intégrée Download PDF

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Publication number
WO2019174773A1
WO2019174773A1 PCT/EP2018/084549 EP2018084549W WO2019174773A1 WO 2019174773 A1 WO2019174773 A1 WO 2019174773A1 EP 2018084549 W EP2018084549 W EP 2018084549W WO 2019174773 A1 WO2019174773 A1 WO 2019174773A1
Authority
WO
WIPO (PCT)
Prior art keywords
pump
selection
assemblies
rotor
assembly
Prior art date
Application number
PCT/EP2018/084549
Other languages
German (de)
English (en)
Inventor
Conrad Nickel
Franz Pawellek
Original Assignee
Nidec Gpm Gmbh
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 Nidec Gpm Gmbh filed Critical Nidec Gpm Gmbh
Priority to US16/979,778 priority Critical patent/US20210040949A1/en
Priority to CN201880090569.8A priority patent/CN111836946A/zh
Priority to BR112020015740-6A priority patent/BR112020015740A2/pt
Priority to EP18826989.8A priority patent/EP3765712A1/fr
Publication of WO2019174773A1 publication Critical patent/WO2019174773A1/fr

Links

Classifications

    • 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
    • F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/10—Outer members for co-operation with rotary pistons; Casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/02—Arrangements of bearings
    • 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
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • 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
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F04C11/008—Enclosed motor pump units
    • 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
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2230/00—Manufacture
    • F04C2230/20—Manufacture essentially without removing material
    • F04C2230/24—Manufacture essentially without removing material by extrusion
    • 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
    • F04C2240/00—Components
    • F04C2240/30—Casings or housings
    • 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
    • F04C2240/00—Components
    • F04C2240/50—Bearings
    • F04C2240/51—Bearings for cantilever assemblies
    • 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
    • F04C2240/00—Components
    • F04C2240/70—Use of multiplicity of similar components; Modular construction
    • 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
    • F04C2240/00—Components
    • F04C2240/80—Other components
    • F04C2240/808—Electronic circuits (e.g. inverters) installed inside the machine

Definitions

  • the present invention relates to a modular system for a compact pump assembly for the axial integration of an electrical drive assembly on a pump assembly with a common shaft bearing.
  • An advantageous pump construction with a compact axial dimension is known, for example, from patent application DE 10 2016 119 985 A1 of the same Applicant not yet disclosed for the filing date of this patent application, which describes a pestle piston vacuum pump.
  • the aforementioned pump structure integrates the electric drive in a small space with the other components of the pump and has only a single shaft bearing with two ball bearing raceways. Compared to a pump assembly with two shaft bearings and an axially adjacent drive and pump arrangement, such a pump assembly provides axial length reduction and provides an advantageous basis for a pump design of various compact design and small axial dimension pumps.
  • Pump type and use determined after which determines a dimensioning of components, such as a shaft bearing and a shaft seal on the basis of the application occurring forces and pressures.
  • An embodiment of the pump housing is finally designed individually for the relative fixing and mounting of the assemblies around the selected components. This results in the fact that for the production of a product range of different pumps, which differ from the pump type, the volumetric design or the drive power, an individual pump structure with a large number of different components, in particular for each pump, is used according to the above procedure. which moldings always vary depending on a type of a module or its parameters. Consequently, the production of a range of products from a variety of pumps is associated with considerable expense to provide a wide variety of molding tools for casting housing parts or for the procurement and storage of numerous components and components.
  • the modular system of a pump assembly for the axial integration of an electrical drive module to a pump module comprises: a selection of electric drive modules with different drive power; a selection of pump assemblies with different volumetric power and / or different design; and a shaft bearing assembly comprising a pump shaft and a shaft bearing having at least two rows of rolling bearings, the shaft bearing coupling the pump shaft between a motor rotor of the electric drive assembly and a pump rotor of the pump assembly a pump housing of the pump assembly is supported; the selection of pump assemblies has in common a collar section on the pump housing, which heats the shaft bearing in a passage opening of the pump housing and projects to a receiving side for an electric drive unit; and the selection of pump assemblies differs with respect to the pump rotor and / or a pump chamber; the selection of drive assemblies collectively comprises a motor rotor formed on a radially outer portion in the form of a rotor bell, the rotor bell radi
  • the invention thus provides for the first time a push button system which defines an axial overlap of the assemblies as a spatial interface between selection combinations among the assemblies, in order to enable a constructive standardization of the pump structure or the use of identical components.
  • the modular system enables a universal integration of an individual combination of modules from a selection of modules in a compact pump design.
  • the unification of components as well as a relative arrangement of the same provides each other in the manufacture of pumps cost advantages by reducing the production of different moldings and a reduction of different processes and tools in the assembly of the pump.
  • a spatial interface for uniform components between three assemblies in a pump assembly is selected.
  • this structural interface defines an axial overlap of the assemblies, which results in an integrated, compact pump design for every combination of the assemblies.
  • a drive power can be increased by means of larger field coils, while all other components, including the rotor bell, remain the same.
  • one size of the pump rotor and the pump chamber may vary while all other components and assemblies of the pump assembly remain the same.
  • a pump assembly of another type can be connected to the same pump shaft, while all other components and assemblies of the pump assembly remain the same.
  • a collar portion of the same outer diameter and on the motor rotor side a rotor bell of the same inner diameter may be provided.
  • a distance between the components in the radial direction can be defined. This radial distance from each other is preferably low. By a defined small distance in each selection combination optimum utilization of the space in the pump housing is ensured, and achieved the objective of a universal yet compact pump structure.
  • the said determination of the diameter provides the possibility to use the same basic body for the motor rotor for all electric drive assemblies.
  • the rotor bell of the rotor only needs to be adjusted if necessary in an axial length.
  • the outer diameter of the rotor bell of such a common body of the motor rotor for all electric drive assemblies only be adapted by an amended assembly and attachment of Magnetkörpem as rotor poles to a respective stator of a respective electric drive group.
  • a collar portion having the same inner diameter, the same shaft bearing and a pump shaft having the same outer diameter may be provided.
  • a motor chamber may be formed with the same inner peripheral portion.
  • each Statorjochs may be provided to the pump housing with varying width in the axial direction.
  • the motor chamber can be closed to an axial side of the pump housing by a motor cover with an integral pin heat sink, in which a control electronics for an electric drive assembly is receivable. Due to the common feature of a cover for the motor chamber, a uniform assembly sequence is made possible during assembly of the electric drive assembly.
  • a pin cooler which is integrable in each lid, can be the same as a universal receptacle to the inside, which is adapted to bring different control electronics of each electric drive assembly in thermal contact.
  • the entire cover can be the same component for all or many selection combinations of the assemblies, wherein a design of the pencil cooler is dispensed with for liquid-cooled drives.
  • At least a part of the pump housing, which comprises the passage opening and the collar section, and / or the motor cover may be made of a material suitable for extrusion molding, preferably cold extrusion.
  • extruded parts have a lower formation of air bubbles and voids as well as inclusions of foreign bodies and have better thermal and mechanical properties than conventional die-cast parts.
  • a better heat conduction coefficient has a particularly advantageous effect in a housing section between the electric drive assembly and the pump assembly, since thus an improved heat transfer of the electrical power loss from the stator of the electric drive assembly can be achieved on the pump chamber.
  • the waste heat is quickly dissipated by the mass flow of the pumped medium. This improves the cooling of the stator.
  • Equally advantageous is a better thermal conductivity in the region of the cover of the motor chamber, wherein in particular an improved heat transfer of the control electronics can be achieved via the pen cooler to the environment.
  • the collar portion for receiving the shaft bearing can be designed with a smaller wall thickness to achieve comparable mechanical rigidity.
  • a smaller wall thickness in this and other housing sections saves material costs and weight.
  • Figure 1 is a water pump whose electric drive is designed as a dry runner.
  • Figure 2 is a water pump whose electric drive runs in a separate cooling medium, which is separated from the required cooling water.
  • FIG. 3 shows a flushing / air pump whose electric drive is designed as a dry runner
  • Fig. 6 is a vacuum pump whose electric drive is designed as a dry runner.
  • Fig. 1 shows a first embodiment of a pump from the B aukastensystem in the form of a water pump, whose electric drive is designed as a dry runner.
  • the pump assembly 2 is a centrifugal pump of the radial pump type. On the right side, the pump assembly 2 is only partially shown with a pump cover removed was, which encloses a pump chamber 22 radially and axially limited.
  • the pump rotor 21 is formed in this embodiment as a radial impeller 21 a and has a central suction port through which a conveyor is sucked ström a cooling water, and is accelerated radially into the pump chamber 20.
  • An unillustrated volute casing section is provided in the pump cover, not shown, around an exit region of the radial impeller 2la, through which the conveyor flow is discharged tangentially through a pump outlet.
  • Such generally known details of the pump assembly 2 of the radial pump type are not further elaborated to shorten the disclosure.
  • a rear side of the pump chamber 22 behind the impeller 21a is formed by the illustrated part of a pump housing 20.
  • the pump housing 20 has a passage opening for a pump shaft 31, which is sealed by a shaft seal 33 to the pump chamber 22.
  • the pump shaft 31 extends from the impeller 21 a through the passage opening of the pump housing 20 to an electric drive assembly 1 and is mounted on the pump housing 20 by means of a single shaft bearing 32.
  • the shaft bearing 32 has two rolling element rows with spherical Wälzkörpem in order to accommodate both radial and axial forces and tilting moments of the pump shaft 31 within a single shaft bearing 32 can.
  • the shaft bearing 32 is fitted in a collar portion 23 of the pump housing 20.
  • the collar portion 23 projects concentrically with the through hole of the pump housing 20 toward the electric drive unit 1 side.
  • the electric drive assembly 1 includes a motor rotor 11 and a stator 12 and an electronic control unit 14.
  • the pump housing 20 has a cylindrical outer wall which encloses a motor chamber 10 for receiving the electric drive assembly 1.
  • the outer housing wall of the pump housing 20 extends concentrically to the collar portion 23, so that in the motor chamber 10, an annular volume for receiving the stator 12 of the electric drive assembly 1 is provided.
  • An outer peripheral edge of the stator 12 is in contact with a step portion of an inner surface of the motor chamber 10, and thus is fixed radially and axially.
  • the motor rotor 11 is fixed on a free end of the pump shaft 31 that comes out of the collar portion 23.
  • the motor rotor 11 has at a radially outer portion of a rotor bell 13, which overlaps axially with the collar portion 23 of the pump housing 20 and this rotates radially outside.
  • An axial dimension and position of the rotor bell 13 corresponds to a facing inner surface of the stator 12.
  • the rotor bell 13 serves as a magnet carrier for the rotor poles.
  • a hollow cylinder remains within the rotor bell 13, which substantially corresponds to the outer diameter of the collar portion 23 plus a clearance gap.
  • the windings of the field coils of the stator 12 extend into the motor chamber 10 to the left and right of the stator yoke.
  • the pump housing 20 is open to an axial side of the motor chamber 10.
  • the open side of the pump housing 20 is closed by a motor cover 24.
  • the motor cover 24 has on an outer side a plurality of parallel protruding pins and forms a so-called pin heat sink.
  • the motor cover 24 has a surface which is in thermal contact with a control electronics 14 of the electric drive assembly 1.
  • the control electronics 14 electronic construction stones power electronics, such as capacitors and transistors, which are connected to a circuit board, and the circuit board is in a ceremoninkon contact with the Aufhahme resolution the motor cover 24.
  • Between the pump housing 20 and the motor cover 24 is a arranged to the upper side of the housing mated connector leads leads to an electrical power supply.
  • Fig. 2 shows a second embodiment of a pump of the modular system in the form of a coolant pump, the electric drive assembly is cooled by means of a bath in a separate medium.
  • the pump assembly 2 corresponds substantially to that of the first embodiment and again has the radial impeller 21 a as the pump rotor 21.
  • a portion of the pump housing 20 surrounding the pumping chamber 22 is not further illustrated for brevity of disclosure of the gist of the invention.
  • the pump housing 20 on a pressure compensation chamber 26 over the circumference of a pressure compensating diaphragm 27 is stretched.
  • a rear side of the pressure compensation chamber 26 is connected via a bore to the motor chamber 10.
  • the motor chamber 10 is filled with a dielectric cooling medium, which is filled through a closable opening in the pump housing 20.
  • the dielectric cooling medium surrounds the field coils of the stator 12 and dissipates a waste heat of the power loss of the stator via the pump housing 20 to the environment and in particular to a conveyor flow in the pump chamber 22 of the pump assembly 2.
  • Pressure fluctuations that arise in the closed volume of the motor chamber 10 due to the temperature fluctuations of the electrical drive assembly 1 are transmitted through the pressure compensation chamber 26 via the pressure compensation diaphragm 27 to the pump chamber 20, so that a pressure equilibrium between the motor chamber 10 and the pump chamber 22 is established.
  • the first embodiment and the second embodiment have the same pump shaft 31 and the shaft bearing 32. Further, parts of the pump housing 20 for receiving the electric drive assembly 1, such as the collar portion 23 and an outer wall of the pump chamber 10, as well as the motor cover 24. Also corresponds to an inner diameter of the rotor bell 13 on the motor rotor 11 of those of the preceding embodiments.
  • Fig. 3 shows a third embodiment of a pump from the modular system in the form of a purge or air pump, the electric drive assembly is designed as a dry runner.
  • the pump rotor 21 is formed as a peripheral wheel 2lb.
  • the pump housing 20 forms an annular channel as a pumping chamber 22 around the peripheral wheel 2lb around.
  • a pump inlet and a pump outlet are arranged adjacent to each other on the circumference of the annular channel of the pump chamber 22.
  • This pump type can promote both liquid and gaseous fluids and a mixture of the two phases and is used for example for a fuel cell.
  • the stator 12 of the electric drive assembly 1 has a lower drive power compared to the previous embodiments.
  • the stator 12 of this embodiment has been designed such that an axial dimension including the field coils has been reduced as compared with the previous embodiments.
  • an inner diameter of the rotor bell 13 on the motor rotor 11 corresponds to that of the preceding embodiments.
  • the shaft bearing 32 and a blank as the output body of the pump shaft 31 are the same.
  • Fig. 4 shows a fourth embodiment of a pump from the modular system in the form of an oil pump, the electric drive assembly 1 is designed as a dry runner.
  • a shaft seal 33 for sealing the dry running drive assembly 1 is disposed behind the shaft bearing 32 in the collar portion 23, sodas s the shaft bearing 32 is lubricated by the required oil.
  • the pump assembly 2 is a gerotor-type positive displacement pump.
  • the pump rotor 21 is designed as a gerotor inner element 21 c whose outer rotor toothing is in mesh with an inner rotor toothing of a rotatable gerotor outer element 28.
  • the pump cover 25 has a central pump inlet. The pump outlet is not shown in this sectional view.
  • further details of pump assembly 2 for brevity of disclosure will not be further described for essential features of the invention.
  • the electric drive assembly 1 of the fourth embodiment has a higher drive power, in particular a higher drive torque corresponding to the demand of a positive displacement pump in comparison to the preceding embodiments.
  • the stator 12 of the electric drive unit 1 of this embodiment has been designed such that an axial dimension including the field coils is longer compared with the previous embodiments. Accordingly, a diameter of the field coils of the stator 12 and an axial dimension of the magnetic Pole on the rotor bell 13 larger than in the previous embodiments.
  • An axial dimension of parts of the pump housing 20 for accommodating the electric drive assembly 1, such as the collar portion 23 and an outer wall of the pump chamber 10, as well as the motor cover 24 on the other hand still correspond to those of the previous embodiments.
  • an inner diameter of the rotor bell 13 on the motor rotor 11 corresponds to that of the preceding embodiments.
  • the shaft bearing 32 and a blank as the output body of the pump shaft 31 are the same.
  • Fig. 5 shows a fifth embodiment of a pump from the B aukastensystem in the form of an oil pump
  • the electric drive assembly 1 is designed as a wet rotor.
  • the pump assembly 2 whose details are not discussed further for the purpose of shortening the disclosure, is again a gerotor pump with a gerotor inner element 21 c as a pump rotor 21 and a rotatable gerotor outer element 28, which essentially correspond to those of the fourth embodiment.
  • the drive power of the electric drive assembly 1 corresponds essentially to that of the fourth embodiment, but it is not sealed by means of a shaft seal 33 and thus is in contact with the conveyed oil.
  • the motor cover 24 differs from the fourth embodiment in that it delimits the control electronics 14 from the oil in the motor chamber 10.
  • the control electronics 14 can in turn be covered by an unillustrated cover to the outside.
  • the shaft bearing 32 and a blank as the output body of the pump shaft 31 are the same.
  • FIG. 6 shows a sixth embodiment of a pump from the B aukastensystem in the form of an oil-free, dry-running vacuum pump.
  • the pump assembly 2 consists of a pendulum piston 29, which is moved oscillating in the pump chamber 22, while at the same time on the one hand air through a Inlet sucks and on the other hand displaces air and pushed out by pressure valves in an outlet.
  • the oscillating piston 29 is driven by a crank pin on a turntable 2ld, which engages in a slot in the oscillating piston 29.
  • the pump rotor 21 of sixth embodiment is thus formed as a turntable 21 d with a crank pin det.
  • the stator 12 of the electric drive unit 1 in the sixth embodiment has lower drive power as compared with the fourth and fifth embodiments of an oil pump.
  • the stator 12 of this embodiment has been designed such that an axial dimension including the field coils has been reduced as compared with the fourth and fifth embodiments.
  • Parts of the pump housing 20 for receiving the electric drive assembly 1, such as the collar portion 23 and an outer wall of the pump chamber 10, and the motor cover 24, however, continue to correspond to those of previous embodiments. Likewise corresponds to an in nen preparend the rotor bell 13 on the motor rotor 11 to that of the previous embodiments.
  • the shaft bearing 32 and a blank as the output body of the pump shaft 31 are the same.
  • Whether a shaft seal 33 is used and whether the shaft seal 33 is disposed in front of or behind the shaft bearing 32 can be varied by positioning the shaft seal 33 in the unitary collar portion 23 for various types of electric drive assemblies 1, such as dry runners and wet rotors be made without having to make different moldings for the pump housing.
  • the provision of the shaft bearing 32 and a pump shaft 31 or a blank of the same diameter can be made for each pump from a selection combination of the components of the same components.
  • a portion of the pump housing 20 which defines the pump chamber 22 and the motor chamber 10, and the collar portion 23 and a step portion comprises, at the Inner surface of the stator 12 is set axially, with the same radial dimensions sungs executed and manufactured as a uniform cold flow molding with or without expression of a pin cooler.
  • the engine cover 24 is designed for several embodiments with the same dimensions and manufactured as a uniform cold extruded part, wherein for liquid-cooled electric drive assemblies 1 of the wet rotor type an integrated pin heat sink can be omitted to the outside.
  • the motor rotor 11 with the rotor bell 13 having the same radial dimensions, at least before being fitted with rotor poles having the same inside diameter, is manufactured and manufactured as a uniform deep-drawn part or sintered part with good magnetic properties.
  • the adaptation to the electric drive assemblies 1 thus takes place by a

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

L'invention concerne un système modulaire d'une structure de pompe destinée à l'intégration axiale d'une sélection d'ensembles d'entraînement électrique (1) à une sélection d'ensembles de pompe (2) et un ensemble de arbre-palier (3) comprenant un arbre de pompe (31) et un palier d'arbre (32) pourvu d'au moins deux rangées de paliers à roulement, le palier d'arbre (32) supportant l'arbre de pompe (31) entre un rotor de moteur (1) de l'ensemble d'entraînement électrique (1) et un rotor de pompe (21) de l'ensemble de pompe (2) sur un boîtier de pompe (20) de l'ensemble de pompe (2) ; la sélection d'ensembles de pompe (2) comportant en commun sur le boîtier de pompe (20) une partie collerette (23) qui reçoit le palier d'arbre (32) dans un orifice traversant du boîtier de pompe (20) et qui fait saillie vers un côté de réception d'une unité d'entraînement électrique (1) ; et la sélection d'ensembles de pompe (2) différant par rapport au rotor de pompe (21) et/ou à une chambre de pompe (22) ; la sélection d'ensembles d'entraînement (1) comportant en commun un rotor de moteur (11) qui est conçu sur une partie radialement extérieure sous la forme d'une cloche de rotor (13), la cloche de rotor (13) comportant en commun, entourant radialement et chevauchant axialement la partie collerette (23) de chaque boîtier de pompe (20) de la sélection d'ensembles d'entraînement (1); et la sélection d'ensembles d'entraînement (1) différant par rapport à un stator (12) ; et au moins une dimension radiale de l'arbre de pompe, du palier d'arbre, de la partie collerette (23) et/ou la cloche de rotor (13) étant la même pour chaque combinaison du choix d'ensembles d'entraînement électrique (1) et du choix d'ensembles de pompe (2).
PCT/EP2018/084549 2018-03-13 2018-12-12 Système modulaire d'une structure de pompe axialement intégrée WO2019174773A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US16/979,778 US20210040949A1 (en) 2018-03-13 2018-12-12 Modular System of an Axially Integrated Pump Structure
CN201880090569.8A CN111836946A (zh) 2018-03-13 2018-12-12 轴向集成泵结构的模块化系统
BR112020015740-6A BR112020015740A2 (pt) 2018-03-13 2018-12-12 Sistema modular de uma montagem de bomba para a integração axial de uma montagem de acionamento elétrico em uma montagem de bomba
EP18826989.8A EP3765712A1 (fr) 2018-03-13 2018-12-12 Système modulaire d'une structure de pompe axialement intégrée

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018105732.6A DE102018105732A1 (de) 2018-03-13 2018-03-13 Baukastensystem eines axial integrierten Pumpenaufbaus
DE102018105732.6 2018-03-13

Publications (1)

Publication Number Publication Date
WO2019174773A1 true WO2019174773A1 (fr) 2019-09-19

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ID=64901497

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/084549 WO2019174773A1 (fr) 2018-03-13 2018-12-12 Système modulaire d'une structure de pompe axialement intégrée

Country Status (6)

Country Link
US (1) US20210040949A1 (fr)
EP (1) EP3765712A1 (fr)
CN (1) CN111836946A (fr)
BR (1) BR112020015740A2 (fr)
DE (1) DE102018105732A1 (fr)
WO (1) WO2019174773A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3992425A1 (fr) * 2020-10-29 2022-05-04 Suntec Industries France Pompe modulaire

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US20210040949A1 (en) 2021-02-11
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CN111836946A (zh) 2020-10-27
EP3765712A1 (fr) 2021-01-20

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