EP3617448A1 - Agencement de pompe - Google Patents

Agencement de pompe Download PDF

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Publication number
EP3617448A1
EP3617448A1 EP19202447.9A EP19202447A EP3617448A1 EP 3617448 A1 EP3617448 A1 EP 3617448A1 EP 19202447 A EP19202447 A EP 19202447A EP 3617448 A1 EP3617448 A1 EP 3617448A1
Authority
EP
European Patent Office
Prior art keywords
housing
pump arrangement
stator
side wall
drive
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
EP19202447.9A
Other languages
German (de)
English (en)
Other versions
EP3617448B1 (fr
Inventor
Nils BORNEMANN
Stefan TILLER
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.)
GKN Powder Metallurgy Engineering GmbH
Original Assignee
GKN Sinter Metals Engineering 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 GKN Sinter Metals Engineering GmbH filed Critical GKN Sinter Metals Engineering GmbH
Publication of EP3617448A1 publication Critical patent/EP3617448A1/fr
Application granted granted Critical
Publication of EP3617448B1 publication Critical patent/EP3617448B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F04C15/008—Prime movers
    • 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
    • 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
    • F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
    • F04C13/001—Pumps for particular liquids
    • 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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • 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
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2210/00—Fluid
    • F04C2210/10—Fluid working
    • F04C2210/1083—Urea
    • 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
    • F04C2240/40—Electric motor
    • 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
    • F04C2240/40—Electric motor
    • F04C2240/402—Plurality of electronically synchronised motors
    • 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
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/02—Pumps characterised by combination with, or adaptation to, specific driving engines or motors

Definitions

  • the present invention relates to a pump arrangement, at least comprising a first housing, in which at least a first drive means for conveying a fluid is rotatably mounted, a first drive shaft of the first drive means extending at least through a first side wall of the first housing along an axial direction .
  • the pump arrangement is a delivery device for a water-urea solution (eg Adblue), which is preferably used in a motor vehicle for treating an exhaust gas of an internal combustion engine.
  • Such pump arrangements for water-urea solutions have been known for a long time.
  • An electrical drive unit is usually connected to the drive shaft of the drive means.
  • the drive means for conveying a fluid is driven via the drive shaft of such rotary pumps.
  • a drive means such.
  • a pump arrangement that is as compact as possible is to be provided, in particular making noises from the pump arrangement as far as possible.
  • care must also be taken to avoid freezing the solution in the pipes.
  • the water-urea solution is therefore conveyed from the line back into a storage tank.
  • the drive means must also be driven in the opposite direction of rotation.
  • the invention relates to a pump arrangement, at least comprising a first housing, in which at least a first drive means for conveying a fluid is rotatably arranged, a first drive shaft of the first drive means extending at least through a first side wall of the first housing along an axial direction; wherein at least one first rotor of a first axial-flow electric drive is arranged on the first drive shaft outside the first housing, the first axial-flow electric drive having only one (first - assigned to the first axial-flow electric drive and first rotor) stator (in particular no further ( second) stator).
  • the first housing encloses at least the first drive means in a liquid-tight manner, connections being provided for supplying and discharging the fluid to be conveyed.
  • the first drive shaft extends through a first side wall of the first housing, a liquid-tight seal also being provided here between the first side wall and the first drive shaft.
  • a first rotor of a first axial-flow electric drive (AFM: axial-flow motor) is provided, which is arranged on the first drive shaft for transmitting torque to the first drive means.
  • the first housing encloses at least the first drive means, connections being provided for supplying and discharging the fluid to be conveyed.
  • the first drive shaft extends through a first side wall of the first housing.
  • a first rotor of a first axial-flow electric drive (AFM: axial-flow motor) is provided, which is arranged on the first drive shaft for transmitting torque to the first drive means.
  • the first housing is not made liquid-tight, so that the fluid to be pumped as a leakage stream, for. B. along the first drive shaft, can emerge from the first housing.
  • the first housing is preferably designed such that as a result of this leakage flow from the first housing (that is, a fluid outflow and / or fluid inflow not exclusively via the connections for supplying and discharging the fluid) there is no significant impairment of the delivery capacity of the pump arrangement.
  • the leakage flow is at most 5% of the delivery rate (the delivery volume flow) of the pump arrangement.
  • the first axial flow electric drive comprises a (single) stator and a first rotor, which are arranged coaxially to one another.
  • the stator can have a soft magnetic material, for example a so-called “Soft Magnetic Composite” (SMC), or a combination of electrical sheets and SMC.
  • SMC Soft Magnetic Composite
  • the coils of the stator comprise cores, which are preferably pressed and baked from a soft magnetic material.
  • the SMC material is not sintered here. Rather, the temperature is controlled below a melting temperature, but this is sufficient for the cores to retain their geometry permanently.
  • the rotor of the axial flow electric drive can have permanent magnets or soft magnetic elements, for example in cutouts.
  • a permanent-magnet synchronous or brushless DC motor abbreviated BLDC
  • BLDC brushless DC motor
  • a reluctance motor can be created as an electric motor with an axial design, for example, with soft magnetic elements.
  • stator in particular using SMC, as well as further details also relating to a rotor, can be found, for example, in the post-published PCT / EP2015 / 075036 by the applicant, to which reference is made in the context of the disclosure of the present invention.
  • the first axial flow electric drive has in particular an electrical power consumption of less than 100 watts, preferably less than 50 watts.
  • the fluid is delivered with a delivery pressure of at most 10 bar.
  • the first drive shaft is unsupported outside the first housing or is supported by at least one bearing that is only in the axial Absorbs acting forces.
  • no radial bearing that is to say a bearing which serves to support forces acting in the radial direction, outside the first housing is required here.
  • the first drive shaft is therefore in particular exclusively supported in the first housing, so that the installation space for the otherwise required bearings outside the first housing is not required. This enables a particularly compact design of the pump arrangement.
  • At least the first drive shaft is mounted exclusively on the first housing, for. B. over the first side wall and / or a second side wall, wherein in particular the material of the side walls forms the bearing surface.
  • a leakage flow of the fluid to be conveyed along the first drive shaft can cause lubrication of the bearings.
  • a pressure chamber of the pump arrangement is preferably fluidically connected to an area outside the first housing via an opening at least in the first side wall. This allows a (in terms of quantity) controlled volume flow of the fluid to be conveyed to emerge from the first housing and flow back into the first housing via the bearings.
  • the first axial flow electric drive is arranged in a second housing, which can be repeatedly and releasably connected to the first housing.
  • the first axial flow electric drive is thus arranged so as to be protected from the fluid to be conveyed, the individual components of the pump arrangement being interchangeable and / or serviceable independently of one another.
  • the first rotor is arranged directly adjacent to the first side wall and between the first side wall and a stator of the first axial flow electric drive.
  • the first drive shaft can be made very short, since the first rotor connected to the first drive shaft is arranged directly adjacent to the first end wall, through which the first drive shaft extends, starting from the first housing, into the second housing.
  • a stator of the first axial flow electric drive is arranged directly adjacent to the first side wall and between the first side wall and the first rotor.
  • the first drive shaft is longer, since it also extends through the stator to the first rotor.
  • the stator (ie its components, in particular coils, cores and yoke rings) is preferably arranged in a radial direction outside the at least one first drive means.
  • the stator (that is to say at least one of the components of the coil, core and yoke ring) is preferably arranged to overlap with the first housing along the axial direction, preferably overlapping with at least one bearing of the first drive shaft, particularly preferably overlapping with the at least one first drive means.
  • This preferred embodiment enables a particularly compact construction of the pump arrangement, the (only) the at least one first drive means, the first side wall and the first rotor being arranged next to one another along the axial direction and thus determining the size of the pump arrangement along the axial direction.
  • stator is inseparably connected to the first side wall.
  • stator forms at least part of the first end wall.
  • the first drive means is preferably a first gear rotor.
  • This can e.g. B. be designed as part of a gear pump, the gear pump can be constructed as an external gear pump with preferably involute teeth, as an internal gear pump or as a gerotor pump, for example as a gerotor pump or as a sickle pump.
  • the gear pump can be a screw pump.
  • At least the first gear rotor is made of a plastic.
  • the gear rotor having a further sound reduction means in addition to the porosity.
  • the content of the DE 10 2015 201 873 directed. It has been found that by varying the density in the wheel body of the gear rotor, the transmission path of the structure-borne sound waves from generation at the ring gear to the hub can be interrupted or the sound waves can be broken or reflected in such a way that the structure-borne sound signal at the output, namely the shaft / bore of the Gear rotor turns out significantly lower.
  • the variations in density can be carried out rotationally symmetrically or locally.
  • a gear rotor in a disk arrangement with different densities is also possible.
  • the angle of the plane of the individual layers can deviate from the preferred plane, the horizontal plane of the component. Since the structure-borne noise spreads better in materials with higher density than in materials with lower density, it is also possible to introduce sound-guiding channels in the gear rotor or only in the toothing, which specifically deflect or weaken the structure-borne sound waves.
  • the channels and / or local density variations can be filled with pure material of different densities as well as with combinations of different materials such as iron powder or oil.
  • Manufacturing process as a conventional pressing of metallic powder as it is also in a modified form from the WO 2013/067995 A1 emerges, as well as an additive manufacturing of metallic material and / or plastic, for example with a device such as that from the DE 10 2013 103006 A1 example, can also be used, in particular to produce low-noise gear rotors. But it can also be manufacturing processes are used as they are basically from the EP 2 221 131 A1 , the EP 1 407 877 A1 , the EP 1 34527 A2 or also the JP S60-162 702 A emerge.
  • stator ie at least one of the components of the coil, core and yoke ring
  • stator is arranged to overlap with at least one bearing of the first drive shaft, particularly preferably overlap with the at least one first drive means.
  • the first housing has an amagnetic material at least in a region adjacent to the stator, preferably the electromagnetic yoke (ring) and in particular to the cores of the stator.
  • the necessary formation of the electromagnetic field for generating a torque on the rotor of the axial flow motor is not or only slightly disturbed.
  • a second axial flow electric drive is arranged outside the first housing and on a second side wall of the first housing opposite the first side wall; wherein the second axial flow electric drive is either torque-transmitting connected to the first drive shaft or to a second drive shaft of a second drive means arranged in the first housing.
  • the second axial flow electric drive is connected to the second drive shaft in a torque-transmitting manner, the second drive means being a second gear rotor which is arranged in a meshing manner with the first gear rotor for conveying the fluid, the two gear rotors being arranged clamped to one another via the two axial flow electric drives .
  • the bracing of the two gear rotors ensures that the gear rotors are meshed without any play so that noises can be minimized.
  • this tension can also be set when the direction of rotation of the drive means is reversed (e.g. when a water-urea solution is returned to a tank to avoid ice formation in the lines).
  • the two axial flow electric drives are constructed identically, but are arranged offset with respect to one another at the opposite ends of the gear rotor with respect to the arrangement of the stator poles.
  • the offset can be designed such that wave trough, caused by the first axial flow electric drive, and Wellenberg, caused by the second axial flow electric drive, virtually overlap in their torque effect. This enables a balanced, and above all more uniform, drive of the gear rotor. This in turn leads to a reduction in noise emissions from the meshing gears.
  • the equalization of the torque on the driven shaft leads in particular to a smoother contact of the individual teeth of the meshing gears. Striking the intermeshing teeth can at least be minimized.
  • the first axial flow electric drive forms at least one heating element which is connected to the first side wall in a heat-conducting manner via at least one heat-conducting structure.
  • the one stator with its coils can be used as a heating element of the first housing.
  • the heat development occurring there can, for. B. can be introduced conductively into the first housing via the first side wall.
  • a corresponding current can be made available which flows through the coils of the stator poles.
  • the back surface of the stator is completely connected to the first housing, that is, for. B. forms the first side wall itself.
  • the stator is therefore preferably placed directly on the first housing or z. B. inserted into a first side wall designed as a cover of the first housing.
  • a metallic, electrically conductive powder can also be used, for example in the case of a rotating, rotating filling shoe for filling with at least two different materials, such as that from the DE 10 2014 006 374 emerges.
  • conductive heat paths heat-conducting structure
  • electrically heatable paths heat-conducting structure
  • the first side wall forms in particular at least part of a fluid-carrying channel. At least a part of the side wall preferably contacts the delivered fluid in the region of the channel (for example in the region of the drive means). In particular, only this partial area is formed with a heat-conducting structure, so that the heat generated in the area of the stator can be deliberately released to the fluid via the heat-conducting structure.
  • a temperature sensor can be used to generate heat.
  • a temperature sensor can be attached to the pump arrangement itself.
  • an existing temperature sensor on power electronics of the pump arrangement is used to decide whether and to what extent a current is sent through the stator. This can be stored, for example, in a control unit which is associated with the urea injection. For example, if the temperature is detected too low, heating can take place before the internal combustion engine actually starts. If you think of today's keyless systems for opening and starting, opening them could trigger the precautionary heating. This would make it possible to heat the pump itself, which is supplemented with heat, for example eg from a tank heater or as waste heat from a still warm internal combustion engine. As a result, the system could immediately be operational even at low temperatures or remain operational.
  • a compensation for a different thermal expansion of the different materials is provided in the pump arrangement.
  • the fluid or the urea solution can be exposed to temperatures that can fluctuate strongly due to the environment but also due to the operation, for example in deep frosts of, for example, -35 ° C. and due to the conditions when the urea solution is injected, at least briefly + 100 ° C. This also affects the individual components, which stretch or contract differently due to the ambient temperature. Therefore, the pump arrangement can have, for example, a spring-loaded tracking in its interior, which allows, for example, the minimization of otherwise occurring gap dimensions.
  • the motor vehicle urea pump can also have a second gear on a second shaft, the two gears meshing with one another and building up pressure.
  • Both gears can be constructed from the same material.
  • both gearwheels can also be constructed from a material that is different from one another.
  • one gearwheel can be made from a plastic, the other gearwheel from a metal.
  • Composite gear wheels can also be used, that is to say the gear wheel has different materials, for example a core made of metal and a surface made of plastic or vice versa.
  • Helical gears are preferably used in meshing gears. However, it can also be advantageous to use straight toothed gears to increase the pressure.
  • the gearwheel or gearwheels are preferably produced as spur gearwheels with a manufacturing quality in which the gearwheel has a quality quality of the designed gearwheel according to DIN 3961 and DIN 3962 with respect to at least one parameter, preferably a total profile error F ⁇ , of a profile angle error f H ⁇ and a profile shape error f ⁇ of at least grade 6, preferably of at least grade 5 or better, for at least one of these values, in particular at least these three values.
  • the first housing can also have additional damping, by means of which a pump noise is reduced. Such density variations as described above can be used here, for example. Other options described here for minimizing structure-borne noise in or on the housing can also be used to achieve the additional damping.
  • damping of a noise or a noise spectrum cannot be achieved only by different sintered materials and / or densities in sintered materials. Also by targeted open porosity of the sintered material or by closing pores, for example by adding copper, for example in connection with different densities, possibly by using green-in-green manufacturing processes with inner and outer material as well as by one or more coatings On components, for example with a plastic, damping can be set specifically.
  • Fig. 1 shows an exploded view of a first pump arrangement 1 in a perspective view.
  • Fig. 2 shows the exploded view of the first pump arrangement 1 according to Fig. 1 in a side view in section.
  • Fig. 3 shows the first pump arrangement 1 according to 1 and 2 in a side view in section and Fig. 4 which the first pump arrangement 1 according to Fig. 3 in a top view.
  • the 1 to 4 are described together below. Inlets and outlets for the fluid 4 and electrical components (control unit, electrical connections etc.) are not shown here, since their arrangement is usually known to the person skilled in the art.
  • the pump arrangement 1 comprises a first housing 2 with a first side wall 6 and a receptacle 10 for the drive means 3, 21; here two meshing gear rotors.
  • the drive means 3, 21 are rotatably mounted in the first housing 2 for conveying a fluid 4, a first drive shaft 5 of the first drive means 3 extending through the first side wall 6 of the first housing 2 along an axial direction 7. Outside the first housing 2, a first rotor 8 of a first axial-flow electric drive 9 is arranged on the first drive shaft 5.
  • the first housing 2 encloses the drive means 3, 21, in particular in a vapor-tight and liquid-tight manner, connections being provided for supplying and discharging the fluid 4 to be conveyed.
  • the first drive shaft 5 extends through a first side wall 6 of the first housing 2, a liquid-tight seal also being provided here between the first side wall 6 and the first drive shaft 5.
  • the first axial flow electric drive 9 comprises a (first) stator 13 and a first rotor 8, which are arranged coaxially to one another.
  • the coils 15 of the stator 13 interact with magnets 22 of the first rotor 8 to generate a torque for driving the first rotor 8 and thus the first drive shaft 5 in the circumferential direction 16.
  • the stator 13 has a plurality of coils 15, which are arranged in a circumferential direction 16 evenly spaced from one another on a yoke plate of the stator 13.
  • the first drive shaft 5 is only inside the first housing 2 via radial bearings (which absorb the forces in the radial direction 24) and possibly axial bearings (the forces in the axial direction) 7 record) stored. Outside the first housing 2, the first drive shaft 5 is arranged without bearings.
  • the first axial-flow electric drive 9 is arranged in a second housing 12, which can be repeatedly connected to the first housing 2 in a detachable manner.
  • the first axial flow electric drive 9 is thus arranged so as to be protected from the fluid 4 to be conveyed, the individual components of the pump arrangement 1 being interchangeable and / or serviceable independently of one another.
  • the stator 13 has a soft magnetic material 17, for example a so-called “soft magnetic composite” (SMC), or a combination of electrical sheets and SMC.
  • SMC soft magnetic composite
  • FIG. 5 to 7 show a second pump arrangement 1.
  • Fig. 5 shows an exploded view of a second pump arrangement 1 in a perspective view.
  • Fig. 6 shows the exploded view of the second pump arrangement 1 according to Fig. 5 in a side view in section.
  • Fig. 7 shows the second pump arrangement 1 according to 5 and 6 in a side view in section.
  • the first rotor 8 and the stator 13 are interchanged here.
  • the stator 13 of the first axial flow electric drive 9 is arranged directly adjacent to the first side wall 6 and between the first side wall 6 and the first rotor 8.
  • the first drive shaft 5 is longer, since it also extends through the stator 13 to the first rotor 8.
  • the stator 13 with its coils 15 can be used as a heating element 25 of the first housing 2.
  • the heat development occurring there can, for. B. can be introduced conductively via the first side wall 6 into the first housing 2.
  • a corresponding current can be made available by the power electronics, which current flows through the coils 15 of the stator poles of the stator 13.
  • the stator 13 is completely connected with its rear surface to the first housing 2, here in this case to the first side wall 6.
  • the first side wall 6 forms at least part of a channel carrying fluid 4 (in the area of the first drive means 3 and the second drive means 21). In this case, at least a part of the first side wall 6 contacts the delivered fluid 4 in the region of the channel (eg in the region of the drive means 3, 21).
  • a heat-conducting structure 26 formed, so that the heat generated in the area of the stator 15 can be deliberately released to the fluid 4 via the heat-conducting structure 26.
  • Fig. 8 shows a third pump arrangement 1 in a side view.
  • a second axial flow electric drive 18 is arranged outside the first housing 2 in a third housing 23 and on a second side wall 19 of the first housing 2 opposite the first side wall 6.
  • the second axial flow electric drive 18 is connected to a second drive shaft 20 of the second drive means 21 arranged in the first housing 2 in a torque-transmitting manner, the second drive means 21 being a second gear rotor which is arranged in mesh with the first gear rotor for conveying the fluid 4.
  • Fig. 9 shows a fourth pump arrangement 1 in a side view. To the explanations Fig. 8 is referred. In contrast to the third pump arrangement 1, the second axial flow electric drive 18 is connected to the first drive shaft 5 in a torque-transmitting manner.
  • Fig. 10 shows a fifth pump arrangement 1 in a side view.
  • the stator 13 ie its components, coils 15, cores and yoke ring 14
  • the stator 13 overlaps the first housing 2 along the axial direction 7, here overlapping with at least one bearing 11 (radial bearing, axial bearing, slide bearing, friction bearing) of the first Drive shaft 5 and arranged overlapping with the at least one first drive means 3.
  • Fig. 11 shows a sixth pump arrangement 1 in a side view.
  • the first drive shaft 5 is here mounted outside the first housing 2 by means of a bearing 11, the bearing 11 absorbing forces acting exclusively in the axial direction 7.
  • a bearing 11 which serves to support forces acting in the radial direction 24, outside the first housing 2.
  • the first drive shaft 5 is supported exclusively in the first housing 2, so that the installation space for the otherwise required bearings 11 outside the first housing 2 is not required.
  • a particularly compact design of the pump arrangement 1 is thus possible.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
EP19202447.9A 2016-02-22 2017-02-22 Agencement de pompe Active EP3617448B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102016103051.1A DE102016103051A1 (de) 2016-02-22 2016-02-22 Pumpenanordnung
EP17707223.8A EP3405650B1 (fr) 2016-02-22 2017-02-22 Ensemble pompe comprenant un entraînement électrique à flux axial
PCT/EP2017/053992 WO2017144499A1 (fr) 2016-02-22 2017-02-22 Ensemble pompe comprenant un entraînement électrique à flux axial

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP17707223.8A Division EP3405650B1 (fr) 2016-02-22 2017-02-22 Ensemble pompe comprenant un entraînement électrique à flux axial

Publications (2)

Publication Number Publication Date
EP3617448A1 true EP3617448A1 (fr) 2020-03-04
EP3617448B1 EP3617448B1 (fr) 2023-03-29

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EP19202447.9A Active EP3617448B1 (fr) 2016-02-22 2017-02-22 Agencement de pompe
EP17707223.8A Active EP3405650B1 (fr) 2016-02-22 2017-02-22 Ensemble pompe comprenant un entraînement électrique à flux axial

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US (1) US20190055941A1 (fr)
EP (2) EP3617448B1 (fr)
CN (1) CN108884713B (fr)
DE (1) DE102016103051A1 (fr)
WO (1) WO2017144499A1 (fr)

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DE102018105136A1 (de) * 2018-03-06 2019-09-12 Gkn Sinter Metals Engineering Gmbh Verfahren zum Betreiben einer Pumpenanordnung
DE102018105129A1 (de) * 2018-03-06 2019-09-12 Gkn Sinter Metals Engineering Gmbh Verfahren zum Betreiben eines elektrischen Motors
DE102019110511A1 (de) * 2019-04-23 2020-10-29 Schwäbische Hüttenwerke Automotive GmbH Pumpvorrichtung mit einem Deckel und einer Fluidleitung

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EP0134527A1 (fr) 1983-08-11 1985-03-20 Siemens Aktiengesellschaft Circuit MOS dynamique
JPS60162702A (ja) 1984-02-03 1985-08-24 Hitachi Powdered Metals Co Ltd 複層成形体の成形方法
EP1407877A1 (fr) 2001-04-27 2004-04-14 Toyota Jidosha Kabushiki Kaisha Procede et dispositif de remplissage de poudre composite, procede et dispositif de moulage de poudre composite
DE10258364A1 (de) * 2002-12-12 2004-06-24 Daimlerchrysler Ag Elektrische Antriebsvorrichtung
JP2007166693A (ja) * 2005-12-09 2007-06-28 Aisan Ind Co Ltd アキシャル型モータと燃料ポンプ
EP2221131A1 (fr) 2009-05-29 2010-08-25 Sandvik Intellectual Property AB Procédés de production de poudre compacte et corps composite fritté
EP2273121A2 (fr) * 2009-06-08 2011-01-12 Fluid-O-Tech S.r.l. Ensemble de conteneur pour pompe volumétrique
DE102009042598A1 (de) 2009-09-23 2011-03-24 Gkn Sinter Metals Holding Gmbh Verfahren zur Herstellung eines Grünlings
US20130071268A1 (en) * 2011-09-20 2013-03-21 Kia Motors Corporation Pump structure for urea scr system
WO2013067995A1 (fr) 2011-11-09 2013-05-16 Dorst Technologies Gmbh & Co. Kg Procédé et presse de compression d'une pièce constituée d'au moins deux matériaux métalliques et/ou céramiques pulvérulents et/ou granulaires différents
DE102013103006A1 (de) 2012-03-29 2013-10-02 Materials Solutions Vorrichtungen und Verfahren zur schichtweisen additiven Fertigung eines Gegenstands
US20140265664A1 (en) * 2013-03-15 2014-09-18 Regal Beloit Australia Pty Ltd. Air-cooled electric machine and method of assembling the same
DE102014006374A1 (de) 2014-05-05 2015-11-05 Gkn Sinter Metals Engineering Gmbh Vorrichtung zur Herstellung eines Rohlings nebst Verfahren hierzu und Rohling
DE102015201873A1 (de) 2015-02-03 2016-08-18 Gkn Sinter Metals Engineering Gmbh Leises Zahnrad

Also Published As

Publication number Publication date
CN108884713A (zh) 2018-11-23
DE102016103051A1 (de) 2017-08-24
CN108884713B (zh) 2021-06-22
EP3405650B1 (fr) 2019-10-23
US20190055941A1 (en) 2019-02-21
EP3617448B1 (fr) 2023-03-29
WO2017144499A1 (fr) 2017-08-31
EP3405650A1 (fr) 2018-11-28

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