WO2018059844A1 - Refroidissement d'une nacelle de propulsion électrique - Google Patents

Refroidissement d'une nacelle de propulsion électrique Download PDF

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Publication number
WO2018059844A1
WO2018059844A1 PCT/EP2017/071336 EP2017071336W WO2018059844A1 WO 2018059844 A1 WO2018059844 A1 WO 2018059844A1 EP 2017071336 W EP2017071336 W EP 2017071336W WO 2018059844 A1 WO2018059844 A1 WO 2018059844A1
Authority
WO
WIPO (PCT)
Prior art keywords
shaft
heat
electric
rotor
propeller
Prior art date
Application number
PCT/EP2017/071336
Other languages
German (de)
English (en)
Inventor
Jörn GRUNDMANN
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2018059844A1 publication Critical patent/WO2018059844A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
    • B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
    • B63H5/125—Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction, e.g. podded azimuthing thrusters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
    • H02K9/225—Heat pipes
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
    • H02K1/325—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium between salient poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/08—Arrangements for cooling or ventilating by gaseous cooling medium circulating wholly within the machine casing
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
    • H02K9/227—Heat sinks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
    • B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
    • B63H5/125—Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction, e.g. podded azimuthing thrusters
    • B63H2005/1254—Podded azimuthing thrusters, i.e. podded thruster units arranged inboard for rotation about vertical axis
    • B63H2005/1258—Podded azimuthing thrusters, i.e. podded thruster units arranged inboard for rotation about vertical axis with electric power transmission to propellers, i.e. with integrated electric propeller motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H23/00—Transmitting power from propulsion power plant to propulsive elements
    • B63H23/32—Other parts
    • B63H23/34—Propeller shafts; Paddle-wheel shafts; Attachment of propellers on shafts
    • B63H2023/346—Propeller shafts; Paddle-wheel shafts; Attachment of propellers on shafts comprising hollow shaft members

Definitions

  • the invention relates to an electric nacelle drive for a ship having a nacelle housing, a housing arranged in Gondelge ⁇ electric motor with a stator and a rotor which is arranged coaxially to a rotational axis of the electric motor, and a gondola shaft, by means of which the nacelle housing rotatably with a Hull is connectable. Furthermore, the invention relates to a ship with such an electric nacelle drive.
  • Such an electric pod propulsion comes beispielswei ⁇ se as a drive unit for a vessel or generally in a vessel is used, wherein the pod propulsion generally outside of the ship hull and ⁇ half of the water level, in particular in sea water is, and drives a propeller.
  • Such nacelle drives are also known under the name POD drives and usually have an electric power in the megawatt range, in particular of more than 5 MW.
  • POD drives usually have an electric power in the megawatt range, in particular of more than 5 MW.
  • the heat loss of the electrical machine see in a suitable form to be discharged to the
  • a watercraft is a raft, an oil rig, a submarine, or the like.
  • electrical power of less than 5 MW may be used.
  • the heat dissipation of the stator is done for example via the surface of the housing by convection.
  • the stator lamination package for example, shrunk into a housing, whereby a good heat transfer is ensured.
  • the Ge ⁇ housing should have a sufficiently good thermal conductivity. Since the machine housing but in the water (in the maritime transport in salty seawater), also sufficient corrosion resistance is required.
  • a drive unit for a ship comprising a nacelle with egg ⁇ nem electric motor, which is rotatably mounted on a shaft to a ship's hull.
  • cooling channels are provided in the shaft, wel ⁇ che extend into the interior of the hull, where a heat exchanger is provided for recooling the cooling medium located in the cooling medium.
  • the cooling air is passed over the cooling channels in the connecting shaft to the drive motor.
  • the machine could be downsized if the rotor would be better cooled. From a reduction would result in significant advantages, especially if the diameter can be re ⁇ pokerd, the hydrodynamic efficiency can be improved.
  • An object of the invention is to provide an improveddekon ⁇ concepts for an electric pod propulsion.
  • a solution of the problem succeeds in an electric nacelle drive according to claim 1, and in a watercraft according to claim 10.
  • Embodiments of the invention will become apparent, for example, according to claims 2 to 9 and 11th
  • An electric nacelle drive for a ship has a nacelle housing and arranged in the nacelle housing Elektromo ⁇ tor with a stator and a rotor. Further, the electric nacelle drive, for example, also a gondola shaft, by means of which the nacelle housing is rotatably connected to a hull ei ⁇ nes vessel connected.
  • the electric nacelle ⁇ drive also has a shaft for driving a propeller, wherein the shaft has at least one means for conducting waste heat of the electric motor.
  • the shaft has, in particular, steel as a material.
  • the shaft can be forged. From the shaft, the heat can be transferred to the propeller or its propeller blades. The heat can propeller blades through the surface of the product then be given to the surrounding water ⁇ .
  • a thermally good conductive bronze propeller provides a large area for heat transfer to the water.
  • the large surface of the propeller which is surrounded by water during operation, can be used to cool the electric motor.
  • the heat from the rotor via the shaft to the propeller can also be transmitted via a hub.
  • a device for conducting heat this is in particular the waste heat / heat loss of the electric motor
  • the heat transfer of a shaft steel alone should be improved.
  • a passive cooling of the electric motor can be realized.
  • the electric motor to the drive In addition, the shaft can be cooled passively or cooled passively. In a purely passive cooling, there is no active cooling in which a cooling medium such as air or water is circulated. With purely passive cooling, the stator of the electric motor gives off its heat
  • the propeller is used as ⁇ in particular substantially the cooling of the rotor of the electric motor.
  • the rotor heat is hung quasi collected at the site of Entste- directed to the propeller, led to the Pro ⁇ propellers and then transferred from there to the surrounding water.
  • the device conducts heat better than steel.
  • steel For example, copper or aluminum have a higher thermal conductivity than
  • the device for conducting heat to a heat-conducting Homme ⁇ le In one embodiment of the electric nacelle drive, the device for conducting heat to a heat-conducting Hül ⁇ le.
  • This thermally conductive sheath is, for example, on the outside of the shaft and / or in the shaft, in particular as a hollow cylinder integrated into the shaft.
  • the shell has in particular ⁇ special copper as a heat-conducting material.
  • the filament for conducting heat has a heat-conducting layer on the outside of the shaft or in the interior of the shaft, wherein the shaft is in particular at least partially hollow.
  • the device for conducting heat has at least one cooling air channel.
  • cooling air can be conducted inside and / or outside along the shaft in order to dissipate heat.
  • the device is a heat pipe or has a heat pipe.
  • the heat pipe is an efficient means of heat conduction.
  • Examples of heatpipes are sintered heatpipes (eg copper with capillary sinter and antioxidant layer) or mesh heatpipes (eg copper nickel-plated, with capillary metal mesh).
  • the heat pipe can be integrated into the shaft and / or positioned outside on the shaft.
  • the heat pipe can e.g. shrunk into the bronze propeller for connection to the rotor. Also measures can be taken to make the contact area as large as possible.
  • the hub of the propeller can be extended and / or the end of the heatpipe arrangement adapted in its shape to the propeller hub.
  • the device comprises copper, aluminum, ceramic and / or plastic.
  • the heat of the electric motor can be guided over the surface of the shaft, or in the outer radial region of the shaft from the rotor to the propeller.
  • a thermally well conductive structure is applied on the rotor surface of the electric motor or close to it.
  • This can be a layer (example: an Al cylinder, which is shrunk and can also act as a bandage at the same time) or thermally well-conductive, smaller or rod-shaped structures. Smaller structures are therefore run at ⁇ game as rods which are positioned in particular symmetrically to the Rota ⁇ tion axis and parallel thereto.
  • the rods run, for example, in axial bores of the rotor, comparable to damper rods of an electric motor.
  • Suitable materials for the rod (s) or for the layer (in particular for a cylinder) are readily thermally conductive metals such as Cu or Al. But also ceramics (such as alumina) or conductive plastics can take over this job ⁇ given a suitable design. Ceramics and plastics may have an advantage if low electrical conductivity is required, otherwise AC Loss can be induced. For materials with good electrical conductivity, lamination can reduce AC losses. This might be the desired thermal Leitfä ⁇ capability in the axial direction of the propeller towards impair.
  • the material for the means for heat conduction can be found taking into account the environmental conditions such as temperature and / or salty air.
  • the surface of the device for heat conduction may be at least partially sealed, in particular in the case of sensitive materials. This can be done for example in the often without ⁇ out due impregnation of the rotor in a resin bath.
  • the device for conducting the heat (waste heat) of the electric motor is located in the region of the rotor and / or in the region of the shaft outside the rotor. This means into ⁇ particular the appropriate structures of the mechanical connection shaft between the electric motor and propeller are, in particular to the surface out. Comparable to the
  • Power supply lines of an externally excited synchronous machine can be placed on the shaft surface, for example massive copper lines (in particular ⁇ sondere copper rods), which are optionally guided in grooves under the bearings of the shaft and / or the rotor or other obstacles.
  • the propeller is thermally well conductive to this heat conduction path, which is formed by the device, so the structures can be formed connected.
  • end flanges used on the hub may be present.
  • Copper cables or copper rods can also be integrated into the interior of the shaft.
  • the design and construction of the electric motor can be adjusted. Thus, AC losses can be avoided in the area of the electric motor. In the area of the transition from nacelle to propeller, the tightness of the nacelle to the water must be taken into account.
  • the device is a hollow cylinder, or has this one Hollow cylinder on.
  • the hollow cylinder is pushed or shrunk onto the shaft, for example.
  • the apparatus comprises a heat conduction rod wel ⁇ cher, in particular, extend over the longitudinal portion of the rotor via this in a one-piece mold goes, extends beyond the longitudinal region of the shaft and terminates in the region of the propeller.
  • the material used is, for example, copper or aluminum.
  • the device can also be a heat pipe.
  • electric nacelle drive is at least a part of the device within the shaft. It may be a heat pipe, egg ⁇ NEN rod cylinder and / or a hollow cylinder.
  • the heat can therefore be in the center of a shaft, in particular in the center of a hollow shaft. center close to the axis of rotation of the shaft to the propeller.
  • the shaft to the propeller and / or the rotor of the electric motor are designed to be continuous or predominantly hollow.
  • the heat is transferred.
  • the heat can be transmitted as far as the propeller.
  • a copper pipe, which in particular ge ⁇ is closed the front side, introduced by, for example shrinkage fit.
  • Such a copper cooling bus as a device for heat conduction has in particular an outer collector structure in the vicinity of the electromagnetically active rotor components (eg thin copper sheets).
  • This collector ⁇ structure can be designed, for example, segmented by losses AC rails, so to avoid AC losses. Subsequently, the heat is conducted, for example via radial heat conductors (eg copper rods, thermally connected to the outer collector structure) to the inner copper tube (preferably via a thermally highly conductive connection).
  • radial heat conductors eg copper rods, thermally connected to the outer collector structure
  • the inner copper tube preferably via a thermally highly conductive connection.
  • the rotor iron is not impaired too much in its task of guiding the magnetic flux.
  • copper rods and / or copper plates may be arranged as a collecting structure and / or radial heat conductors in the middle of the rotor poles.
  • the copper tube is guided along the hollow shaft to the propeller and is connected to this advantageously thermally conductive well.
  • the tube may for example be made of aluminum.
  • the pipe is filled with water and transfers the heat according to the heat pipe principle.
  • the heat transfer along the cavity in various variants of a heat pipe can be performed, such as in a thermosiphon (single or multi-tube principle) or a heat pipe (use of capillary action to insensitivity to inclination) or a bundle of tubes or a single large diameter pipe, etc.
  • this example ⁇ as adjusting the inclination of the pipe when Thermosi- phon principle and / or a conical shape.
  • the rotor can heat to temperatures up to 100 ° C and more, for example, with a collection of parallel (water) heatpipes in a bore of only 100 mm diameter transmission powers in the range of a few kW possible , This can be viewed or considered almost independently of the length of the transmission link .
  • At least part of the device is in the radially outer region of the shaft. This can be combined with a hollow shaft having a heat pipe to further improve cooling. Due to the various possibilities of cooling the electric motor via the shaft and the propeller using a device for heat conduction, which conducts heat better than a pure shaft made of steel, a pure passiv ⁇ ve cooling of the electric motor can take place.
  • a watercraft may be equipped with an electric nacelle drive of the type described.
  • the watercraft is for example a passenger ship, a freighter or the like.
  • FIG hull 1 drives two electrical cable to a ship ⁇
  • FIG. 2 shows a longitudinal section of an electric gondola drive
  • FIG. 3 shows a further longitudinal section of an electric gondola drive
  • Gondola drive 5 shows another cross section of a rotor of an elec trical ⁇ gondola drive
  • FIG. 7 shows a further cross-section of a rotor of an elec trical ⁇ gondola drive
  • FIG 1 The representation of FIG 1 in a perspective view in the section a section through a ship's hull 9, to which 2 gondolas 8 and 8 'are mounted.
  • Each of the Gon ⁇ spindles 8 and 8 have a pod housing 1, 2 of the propeller shaft 7, and a gondola 5, 5 ⁇ .
  • the gondola shaft 5 or 5 ⁇ is positioned between the nacelle housing 1 and nacelle assemblies 10.
  • the respective nacelle structure 10 has, for example ⁇ a motor for azimuthal movement of the nacelle housing 1 and thus also the propeller 7.
  • the electric motor for driving the propeller 7 is housed in the nacelle housing 1, which is shown in FIG.
  • FIG 2 shows an electric nacelle drive, wherein a longitudinal section is shown.
  • the electrical ⁇ pod drive has the nacelle housing 1, in which the electric motor is accommodated with a stator 2 and a rotor 3, wherein between the stator 2 and the rotor 3, an air gap 11 remains.
  • the rotor 3 is arranged coaxially to egg ⁇ ner axis of rotation 4 of the electric motor.
  • the Gon ⁇ delgepuruse 1 is rotatably connected to the gondola shaft 5 with a ship's hull.
  • To propel a ship connected to the electrical see gondola propeller 7 are provided, which are rotatably connected to the rotor 3.
  • the electric drive Gondelan ⁇ a closed cooling circuit in which a cooling medium circulates, which is shown by the arrows with the problemsszei ⁇ chen 12th The cooling medium passes through cooling air flow openings 13 and 14. This is an active cooling.
  • the closed cooling circuit runs in the nacelle ⁇ housing 1 and in a gondola shaft 5 arranged shaft ⁇ channel 6, which is substantially parallel to the axis of rotation
  • at least one further cooling element may be provided in the nacelle housing 1, in particular in extension of the electric motor at its respective end face.
  • the respective return cooling element may be arranged in particular in the axial region of the respective gene winding head.
  • the rotor 3 is over a closed cooling circuits circulating cooling medium, such as air, increases during operation of the electric motor, its waste heat and trans ⁇ ported this waste heat into the stem channel 6, in which, for example a recooling element is provided, to which the waste heat can be finally discharged.
  • at least one further cooling element may be provided in the nacelle housing 1, in particular in extension of the electric motor at its respective end face.
  • the respective return cooling element may be arranged in particular in the axial region of the respective
  • the shaft 15 is ei ⁇ ne hollow shaft in which, for example, a heat pipe 27 or other means for heat conduction is.
  • This heat conduction device conducts waste heat from the electric motor from the rotor to the propeller 7, which can release heat to the surrounding water via its surface.
  • the hollow shaft 15 can also accommodate a heat pipe or a heat bar, for example made of copper. Copper conducts heat better than steel, which is a material for forming the shaft 15.
  • FIG. 3 shows a further longitudinal section of an electric cable drive, with a stator ⁇ power supply 24 is shown, which through the cable shaft
  • the stator has a laminated stator core 22 and
  • the electric motor in the nacelle housing 1 according to FIG. 3 has a rotor with rotor windings 25.
  • the rotor is over the shaft, which is supported by a bearing 16 is rigidly connected to the propeller 7.
  • a heat pipe 27 is guided, which leads through the rotor into the hub of the propeller 7, to deliver the heat to the wings of the Pro ⁇ pellers.
  • the propeller 7 is in particular a bronze propeller, which by the electric motor (electric motor), which in particular a permanent magnet or externally excited (such as ge ⁇ shows) synchronous machine or asynchronous machine is driven via the shaft.
  • the electric motor electric motor
  • the Ge ⁇ housing 1 possibly a bronze, in which the stator core is a shrunk ⁇
  • further cooling measures air ⁇ flow with eg fans, or other actively operated
  • Fluid cooling can be dispensed with as much as possible, if the installation volume in the POD is severely limited, and a guide up to the hull to a pump and recooling system (causes weight & space!) Is very complex. This applies in particular to pivotable PODs.
  • the approach of passive cooling may have various advantages such as low complexity, low number of Hilfsbe exaggerated ⁇ , thus lower error rate, volume and weight saving of the auxiliary equipment, production cost reduction, etc.
  • the representation according to FIG 4 shows a cross section of a Ro ⁇ door 3 of an electric cable drive with permanentmagne- table excited synchronous motor.
  • the rotor has permanent magnets 17 on the circumference. These are located on the rotor plate 19.
  • the rotor plate 19 has round recesses 21 and six ⁇ angular recesses 20. Through the recesses, for example, a cooling medium can be guided and / or they can be equipped with a rod, for example made of copper, wel ⁇ cher conducts heat from the rotor. The heat conduction from these recesses is continued, for example via the shaft to the propeller, which is not shown in FIG 4, however.
  • FIG 5 shows another cross section of a rotor of an electric cable drive of a perma ⁇ nentmagnetisch excited synchronous motor with adebus 27 over external heat collectors 30, 29 example, heat is conducted to an evaporator 28 of a heat pipe by radial conductor of heat, which represents thedebus.
  • the heat pipe 28 be found ⁇ in the cavity 31, which is formed in the center of the rotor plate 19 of this.
  • the radial heat conductors 29 can also conclude with a copper or aluminum sleeve, which sits on a solid shaft or a hollow shaft, which, however, is not shown.
  • FIG 6 shows schematically the concept for cooling the electric motor with a propeller 7, wherein the rotor 3 is seated on the shaft 15 and a device 27 for
  • the device 27 may be a heat pipe, a rod or a tube, wherein the device 27 is in the inner region and / or in the outer region of the shaft 15.
  • FIG. 7 shows a further cross section of a rotor of an electric nacelle drive.
  • the radial woollei ⁇ ter 29 protrude through the hollow shaft 15 therethrough, wherein in the hollow shaft, an evaporator 28 is located, which is part of a heat pipe.
  • the principle presented here in a version internal variant of the cooling has the advantage that the complex con ⁇ constructive tion of the POD housing and the nacelle interior, special ⁇ no need to change DERS overlooking the seals to the surface variation.
  • the transition from hollow shaft to propeller may require special measures.
  • the heat transfer performance of the heat pipe arrangement is orders of magnitude better than the transmission by means of heat conduction in, for example, copper.
  • the cooling capacity can thus be optimized in a hollow shaft with innenlie ⁇ ing system with heat pipe (s).
  • the illustration according to FIG. 8 shows from another perspective how the radial heat conductors 29 extend into the cavity in the shaft 15 and how heat can be dissipated to the propeller with the hub 34 and the propeller blades 33 via the heat pipe 27.
  • FIG 9 shows a further cross section of a rotor of an electric cable drive, the ra ⁇ Dialen heat conductors terminate in heat conductive traces 36 29th
  • the heat conductor tracks 36 are located in grooves 35 of the shaft.
  • Heat conductor tracks 36 are located on the outer circumference of the shaft 15 and extend from the rotor 3 over the entire shaft 15 to the propeller with the hub 34 and the blades or wings 33.
  • the shaft 15 is in particular a solid shaft 37.
  • the heat conductor tracks 36 extend itself as a device 27 for heat conduction rotationally symmetrical over the lateral surface of the shaft, as shown in the approach in FIG 10.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Wind Motors (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

L'invention concerne une nacelle de propulsion électrique destinée à un navire, laquelle comprend un boîtier (1), un moteur électrique agencé dans le boîtier (1) de la nacelle et pourvu d'un stator (2) et d'un rotor (3), un mât (5), au moyen duquel le boîtier (1) de la nacelle peut être relié de manière rotative à la coque d'un navire, et un arbre (15) destiné à entraîner une hélice (7). L'arbre (15) comprend au moins un dispositif (27) destiné à conduire la chaleur du moteur électrique.
PCT/EP2017/071336 2016-09-29 2017-08-24 Refroidissement d'une nacelle de propulsion électrique WO2018059844A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016218872.0 2016-09-29
DE102016218872.0A DE102016218872A1 (de) 2016-09-29 2016-09-29 Kühlung eines elektrischen Gondelantriebs

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Publication Number Publication Date
WO2018059844A1 true WO2018059844A1 (fr) 2018-04-05

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Cited By (1)

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EP3799264A1 (fr) * 2019-09-30 2021-03-31 Siemens Aktiengesellschaft Arbre d'entraînement d'une machine dynamoélectrique et son procédé de fabrication

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US20240178723A1 (en) * 2021-03-23 2024-05-30 Lilium Eaircraft Gmbh Cooling for an electric drive of an aircraft
EP3998696A1 (fr) * 2021-03-23 2022-05-18 Lilium eAircraft GmbH Refroidissement d'un entraînement électrique d'un aéronef
DE102021210755A1 (de) 2021-09-27 2023-03-30 Siemens Energy Global GmbH & Co. KG Rotor für eine elektrische rotierende Maschine, elektrische rotierende Maschine, Gondelantrieb und Wasserfahrzeug
DE102022111442A1 (de) * 2022-05-09 2023-11-09 eMoSys GmbH Fluidgekühlte, mehrphasige permanenterregte Synchronmaschine

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EP3799264A1 (fr) * 2019-09-30 2021-03-31 Siemens Aktiengesellschaft Arbre d'entraînement d'une machine dynamoélectrique et son procédé de fabrication
WO2021063745A1 (fr) * 2019-09-30 2021-04-08 Siemens Aktiengesellschaft Arbre d'entraînement d'une machine dynamo-électrique et procédé de fabrication correspondant
CN114502848A (zh) * 2019-09-30 2022-05-13 西门子股份公司 电动机器的驱动轴和其制造方法
US20220344990A1 (en) * 2019-09-30 2022-10-27 Siemens Aktiengesellschaft Drive shaft of a dynamoelectrical machine and corresponding manufacturing method
EP3799264B1 (fr) 2019-09-30 2023-04-19 Siemens Aktiengesellschaft Arbre d'entraînement d'une machine dynamoélectrique

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