EP3338344A1 - Cooling an electric rotating machine - Google Patents
Cooling an electric rotating machineInfo
- Publication number
- EP3338344A1 EP3338344A1 EP16733579.3A EP16733579A EP3338344A1 EP 3338344 A1 EP3338344 A1 EP 3338344A1 EP 16733579 A EP16733579 A EP 16733579A EP 3338344 A1 EP3338344 A1 EP 3338344A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotor
- cooling medium
- rotating machine
- electric rotating
- cooling
- 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.)
- Ceased
Links
Classifications
-
- 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
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
- H02K1/30—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures using intermediate parts, e.g. spiders
-
- 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
- H02K7/003—Couplings; Details of shafts
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/10—Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing
- H02K9/12—Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing wherein the cooling medium circulates freely within the casing
-
- 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
Definitions
- the invention relates to an electric rotating machine having a rotatable about a rotation axis rotor having a rotor tube and a stub shaft, wherein the stub shaft is arranged on a non-drive side of the electric rotie ⁇ - generating machine and wherein the rotor tube at an axial end of the rotor tube mechanically connected to the stub shaft.
- the invention relates to a nacelle drive with min ⁇ least one such electric rotating machine.
- the invention relates to a ship with at least one such gondola drive.
- the invention relates to a method for cooling such an electric rotating machine.
- Such an electric rotating machine for example a motor or generator, preferably occurs in a propeller pod drive, also referred to below as POD drive or gondola drive.
- POD drive or gondola drive Such an electric rotating machine in Ma ⁇ a POD propulsion system preferably has a power of at least 5 megawatts and is embodied for instance as a perma ⁇ nenterregte synchronous machine. The speed is preferably in the range of 50 rpm to 250 rpm.
- the electric rotating machine of the Propellergondelan ⁇ drive is preferably with a streamlined housing, the nacelle, dressed and, for example, mounted on a ship, preferably rotatable about 360 degrees about the vertical axis.
- the pod propulsion may further be used advantageously in a subsea ⁇ boot or in a propeller driven aircraft.
- the resulting in the electric rotating machine heat loss must be dissipated in a suitable form. So far, at least a large part of the losses over the surface of the Ge ⁇ housing was delivered by convection to the seawater.
- a gondola drive for a floating device which flows around a water underwater housing with a rotatably mounted propeller shaft with at least one propeller arranged thereon and arranged in the underwater housing electric motor with a stator and a rotor for driving the propeller shaft, wherein between the stator and the underwater housing, a space is formed which is at least partially bounded by the stator and a Ab ⁇ section of the underwater housing and in which flows for cooling the motor, a cooling liquid, wherein the space for the Water circulating underwater housing is closed off and heat is transferred from the stator via the cooling liquid flowing in the space to the section of the underwater housing which delimits the space, and from there to the water flowing around the underwater housing.
- the removal of the entire engine heat is via thedefact ⁇ speed in the room to the portion of the underwater housing, which limits the space, and from there to the underwater Ge ⁇ housing flowing around water.
- a ship drive which consists of a gondola-like to be arranged on the underside of the ship hull ⁇ housing with a in the Housing located synchronous motor consists.
- the rotor of the synchronous motor is formed as permanentmag ⁇ neterregter rotor and the stator of the synchronous motor for cooling through the housing wall is positively fitted into the housing.
- each winding head can be assigned an additional cooling device in the form of a fan or a spray device.
- a device for the self-sustaining rotor cooling pod propellers with one or two electric motors is disclosed.
- the device uses a propeller cap with central and peripheraldebergein ⁇ baums- coaxial outlet orifices, wherein the warm cooling water is ejected by centrifugal force. It allows cooling via the rotor housing and through pipes via the active rotor iron.
- the main propulsion system has a housing which comprises a tubular shaft and a spherical part, wherein the lower part of the verbun ⁇ with the tubular shaft ⁇ and is rotatable together with this.
- the housing Ku gelatinous portion has an inner space which contains an electric drive motor and a propeller shaft which is verbun with at least one propeller external to the housing ⁇ .
- a cooling pipe is axially in the propeller shaft at ⁇ sorted, said can flow through this conduit surrounding water.
- the publication US 2015/0048699 AI discloses a rotor for a high-speed generator comprising a rotor body having inner surfaces and outer surfaces, a coolant inlet and a coolant outlet, and a Ro ⁇ torkühlpfad to cool the rotor body.
- the invention has for its object to provide an electric rotating machine, which, in contrast to the prior art, provides a space savings and saves costs.
- an electric rotating machine having a rotatable about a rotation axis rotor with a rotor tube and a stub shaft, wherein the stub shaft is arranged on a non-drive side of the electric rotating machine, wherein the rotor tube at an axial end of the rotor tube is mechanically connected to the stub shaft and wherein the Wel ⁇ stub end has a central bore and / or parallel bores, which are provided for supplying a cooling medium in the Läu ⁇ ferrrohr, wherein the rotor tube has at least one cooling opening and wherein the central bore and / or the parallel holes are in fluid communication with the at least one cooling ⁇ opening.
- the cooling medium may be, among other things, a gaseous cooling medium such as air or inert gas, or a liquid cooling medium such as water or oil, han ⁇ spindles.
- the parallel holes are parallel to the axis of rotation.
- a nacelle drive with min ⁇ least one such electric rotating machine, a first bearing assembly on the non-drive side of electric rotating machine, a second bearing assembly on the drive side of the electric rotating machine and a propeller rooted, wherein the propeller with egg ⁇ ner drive shaft of the electric rotating machine is connected.
- the object is achieved by a ship with at least one such gondola drive and a first heat exchanger, which is arranged outside of the nacelle drive, where ⁇ is provided in the first heat exchanger for supplying the gondola a cooling medium and to cool down a cooling medium flowing from the nacelle drive again.
- the object is achieved by a method for cooling ei ⁇ ner such an electric rotating machine, wherein the cooling medium is first passed through the central bore and / or the parallel holes of the stub shaft in the axial Rich ⁇ tion in the rotor tube, then in the radial direction through the Thereafter, the guided cooling medium is passed through the air gap and / or between the rotor tube and the rotor core to the axial ends of the rotor and then passed the guided cooling medium in the radial direction over the Statorwickelkmü in the axial center of the rotor tube and the rotor laminated core becomes.
- Such a method of cooling is particularly advantageous ⁇ way, since a uniform distribution of the cooling medium in the ro tor is reached. Furthermore, the coolant supply is simplified, resulting in a space and cost savings.
- the shaft stub is preferably rotationssymmet ⁇ driven, which leads to a good stability and a uniform supply of the cooling medium.
- the parallel holes around the rotation ⁇ axis are arranged to extend in the axial direction.
- the parallel holes are arranged concentrically around the axis of rotation. This leads to a uniform distribution of the cooling medium in the rotor.
- the stub shaft is connected to the rotor tube via a first shrink connection or via a first flange connection.
- Flange connection of the stub shaft is, for example derar ⁇ term executed that it is connected by means of screws and / or a welded joint with the rotor tube.
- a shrink-fit connection is preferably the runner tube, examples of play, heated to several hundred degrees Celsius, whereby the inner diameter of the rotor tube due to thermal expansion ⁇ , which is also called thermal expansion is increased.
- the stub shaft is then partially inserted into the heated rotor tube.
- Upon cooling of the rotor tube is a heat shrinkage, which is also called thermal contraction, instead of whereby the rotor tube gets the previous size again and rotatably ver ⁇ connected with the stub shaft.
- Such mechanical connections are platzspa ⁇ rend, robust and inexpensive to implement.
- the electric rotating machine has a stator surrounding the rotor and an air gap located between the rotor and the stator, the rotor having a rotor plate surrounding the rotor tube Torblechumb, wherein the rotor tube and the rotor ⁇ plate package in its axial center at least have a cooling opening extending in the radial direction and wherein the cooling opening is intended to be a by the shaft stub in the rotor tube supplied cooling medium to the air ⁇ gap and / or between the rotor tube and the Rotorblechpa ⁇ ket to lead to the axial ends of the rotor.
- the cooling medium is smoothly directed from the cooling port to the axial ends of the rotor. This is particularly advantageous since the rotor has a more uniform temperature distribution ⁇ .
- parallel ventilation ⁇ channels for example in the air gap, the magnetic pockets and between rotor tube and laminated core, made possible, which improve the cooling.
- the rotor laminated core has at least one permanent magnet, which is intended to be cooled by the cooling medium conducted through the air gap. This is advantageous because the per ⁇ manentmagnet is before the cooling medium to ⁇ cooled by the cooling medium is warmed prime example via winding heads.
- the permanent magnet preferably has a proportion of rare earths, in particular a proportion of dysprosium, the permanent magnet being provided for, during operation, cooled to a temperature between 70 ° C. and 100 ° C., in particular between 80 ° C. and 90 ° C. to become.
- the Perma ⁇ nentmagnet has due to the low operating temperature, which is contributed play as possible by the advantageous cooling, to a comparatively small proportion of rare earths. This is advantageous because costs are saved by the low proportion of rare earths.
- the Perma ⁇ nentmagnet has due to the low operating temperature, which is contributed play as possible by the advantageous cooling, to a comparatively small proportion of rare earths. This is advantageous because costs are saved by the low proportion of rare earths.
- the Stator at one axial end to a Statorwickelkopf, where ⁇ is provided at a directed to the axial ends of the rotor cooling medium to cool the Statorwickelkopf.
- ⁇ is provided at a directed to the axial ends of the rotor cooling medium to cool the Statorwickelkopf.
- the rotor tube around the cooling opening on a thickening which is intended to increase the rigidity of the rotor tube. This is particularly advantageous, thereby the thickening is compensated by the weakening of the cross-sectional structure caused by the cooling opening in the rotor tube.
- the rotor tube on a coolant-impermeable partition which is intended to direct the supplied through the stub shaft cooling medium to the cooling opening.
- the electric rotating machine has a first baffle arranged to provide separation between the cooler cooling medium supplied by the shaft stub and the cooling medium directed to the axial ends of the rotor. This is advantageous because it provides more efficient cooling.
- the electric rotating machine has a drive shaft, which is arranged on a drive side of the electric rotating machine, wherein the drive shaft further parallel Boh ⁇ ments has, which are provided for supplying an additional cooling medium in the rotor tube.
- the further parallel bores are preferably arranged concentrically around the axis of rotation in the axial direction.
- the electric rotating machine has a second baffle which is therefor is provided to achieve a separation between the supplied through the drive shaft additional cooling medium and the guided to the axial ends of the rotor cooling medium. This is advantageous because it provides more efficient cooling.
- the drive shaft is connected to the rotor tube via a second shrink connection or via a second flange connection.
- Such mechanical connections are space-saving, robust and inexpensive to implement.
- first bearing arrangement and / or the second bearing arrangement each have at least one radial bearing and one axial bearing.
- the thrust bearing is preferably used as an axial spherical roller bearing or as a carburized
- the drive shaft and the stub shaft each have a journal bearing and a pilot bearing, which improves the efficiency of the nacelle propulsion, especially under the prevailing marine conditions.
- the guided cooling medium is symmet ⁇ risch and almost uniformly distributed to the axial ends of the rotor and passed to the Statorwickelköpfen. This results in a uniform temperature distribution.
- an outflowing cooling medium from the Statorwickelköpfen is passed on both sides by a stator lamination stack and in the axial center of the stator lamination stack together ⁇ leads.
- the outflowing cooling medium in the axial center of the laminated stator core can be dissipated to save space.
- an additional cooling medium is led by the further parallel bores of the drive shaft in the axial direction in the rotor tube gelei ⁇ tet and the cooling medium with the additional cooling medium in the rotor tube to a two-sided supplied cooling medium together.
- FIG. 1 shows a longitudinal section of a first embodiment of an electric rotating machine
- FIG. 5 shows a three-dimensional representation of a first form from ⁇ a guide associated with a runner pipe Wellenstummeis
- FIG. 6 shows a three-dimensional representation of a second off ⁇ EMBODIMENT OF A connected with a runner pipe stub shaft and
- the electric rotating machine 1 shows a longitudinal section of a first embodiment of an electric rotating machine 1.
- the electric rotating machine 1 has a rotor 3 rotatable about a rotation axis 4, a stator 2 surrounding the rotor 3 and an air gap 6 located between the rotor 3 and the stator 2 on.
- the rotation axis 4 defines an axial direction, ei ⁇ ne radial direction and a circumferential direction.
- the rotor has a rotor core 3a and a rotor tube 3b.
- a plurality of Perma ⁇ mag- nets 21 in the circumferential direction and in axial direction is arranged, the permanent magnets 21 are at least partially integrated in the laminated rotor core 3a.
- Wel ⁇ lenstummel 7 is connected via a first shrinkage joint 7e with the rotor tube 3b.
- a drive shaft 11 is connected to the rotor tube 3b via a second shrink connection lld.
- the stub shaft 7 has a central bore 7b and parallel holes 7c.
- the parallel holes 7c parallel to the rotation axis 4.
- the central bore 7b and the pa ⁇ rallelen holes 7c are provided for supplying a cooling medium 19 into the runner pipe 3b.
- the cooling medium 19 may be a gaseous cooling medium such as air or inert gas, or a liquid cooling medium, ⁇ example, water or oil, acting.
- the central bore 7b extends in the axial direction through the rotation axis 4 and is therefore arranged rotationally symmetrically about the rotation axis 4.
- the parallel bores 7c are arranged around the axis of rotation 4 in the circumferential direction and in the axial direction, preferably concentrically, ie at equal distances from the axis of rotation 4.
- the rotor core 3 a and the rotor tube 3 b have in their axial center a plurality of extending in the radial direction of the cooling holes 3 c, which are arranged in the circumferential direction and / or in the axial direction.
- the cooling holes 3c are arranged at equal intervals in the circumferential direction.
- the cooling openings 3 c are intended to provide a cooling medium 19, which is supplied through the stub shaft 7 into the rotor tube 3 b, to the air gap 6 and / or between see the rotor tube 3b and the rotor core 3a to lead to the axial ends of the rotor 3.
- the rotor tube 3b has around the cooling hole 3c around a thickening 3d, which is intended to increase the rigidity of the rotor tube 3b.
- the thickening compensates for the weakening of the cross-sectional structure caused by the cooling opening 3c in the rotor tube 3b.
- the stator 2 has a laminated stator core 2 a and stator windings 2 c, the stator windings 2 c having stator winding heads 2 b at the axial ends of the stator 2.
- Stator laminated core 2a has channels to merge the heated cooling medium 19c flowing away from the stator winding heads 2b in the axial center of the laminated stator core 2a and preferably to divert it to the heat exchanger 5.
- a first guide plate 8 and a second guide plate 9 are each ⁇ wells partially fixed 2 and a movable kühlstoffun preparee mutually moveable che / compound, for example a gap at the rotor 3 and partially on the stator, connected to each other.
- a separation between the supplied through the stub shaft 7 cooler cooling medium 19 and the guided to the axial ends of the rotor 3 cooling medium 19 b is achieved.
- the electric rotating machine has a housing 20.
- the guideddemedi ⁇ 19b is further passed through the air gap 6 and between the rotor tube 3b and the rotor core 3a to the axial ends of the rotor 3, where the guided cooling medium 19b through the two-sided baffles 8, 9 is guided in radial Rich ⁇ tion on the Statorwickelkexcellent 2b.
- the guided cooling medium 19b is approximately symmetrically distributed and almost uniformly distributed to the axial ends of the rotor 3 and to the Statorwickelköpfen 2b.
- the outflowing cooling ⁇ medium 19c is passed on both sides of the Statorwickelköpfen 2b through channels in the laminated stator core 2a and merged in the axia ⁇ len middle of the stator lamination 2a and before ⁇ given the heat exchanger 5 fed again.
- FIG. 2 shows a longitudinal section of a second embodiment of an electric rotating machine 1.
- This second embodiment of the electric rotating machine 1 substantially corresponds to the first embodiment of Figure 1 and differs in that the stub shaft 7 on the non-drive side NDE of the rotor tube 3b via a first Flange connection 7a is connected to the rotor tube 3b and the drive shaft 11 is connected to the drive side DE of the rotor tube 3b via a second flange connection IIa with the rotor tube 3b.
- the first flange connection 7a is made by means of a first screw 7d and the second flange connection IIa is made by means of a second screw IIb.
- an optional coolant-impermeable partition wall 10 is provided in the rotor tube 3b, which is provided for directing the cooling medium 19 supplied through the stub shaft 7 to the cooling opening 3c.
- FIG. 3 shows a longitudinal section of a third embodiment of an electric rotating machine 1.
- This third embodiment of the electric rotating machine 1 corresponds essentially to the second embodiment of FIG. 2 and differs in that an additional cooling medium 19a generated by a second heat exchanger 12 the drive side DE is supplied.
- the additional cooling Dium 19a is passed through further parallel holes 11c in the drive shaft 11 in the axial direction in the rotor tube 3b and merged with the cooling medium 19 in the rotor tube 3b to a two-sided cooling medium supplied 19d.
- a larger amount of coolant can be supplied to the electric rotating machine 1, which leads to a greater total cooling power.
- the propulsion pod 15 has an electrical Rotie ⁇ -saving machine 1, which corresponds in its execution example in Fig. 1
- the cooling openings 3c are exemplarily designed as elongated holes and are arranged equidistantly in the circumferential direction.
- the nacelle drive 15 has a first Lageranord ⁇ tion 17 on the non-drive side NDE of the electric rotating machine 1, with the shaft stub 7 is mounted. Furthermore, the drive shaft 11 is mounted with a second bearing arrangement 18 on the drive side DE of the electric rotating machine 1. Both bearing assemblies 17, 18 each have at least one radial bearing and a thrust bearing.
- the thrust bearing designed as an axial spherical roller bearing or as a carb-bearing.
- each one supports and Introductio ⁇ approximately bearings on the drive shaft 11 and the shaft stub 7, which, to ⁇ special under the prevailing conditions at sea, improves the efficiency of the gondola drive 15th
- a propeller 13 is connected to the drive side DE with a drive shaft 11 of the electric rotating machine 1.
- the laminated stator core 2a is additionally cooled ge ⁇ in operation by water 16 which surrounds the pod propulsion 15th
- the housing 20 around the cable drive 15 protects the electric rotating machine 1, the bearings 17, 18 and at the other ⁇ re components against the ingress of water 16.
- the housing may at the laminated stator core 2a recessed be to allow direct contact of the stator lamination 2a with the cooling water 16.
- FIG. 5 shows a three-dimensional view of a first embodiment of a connected to a rotor tube 3b
- the stub shaft 7 is attached to the rotor tube 3b via a shrink connection.
- the rotor tube 3b for example, heated by a few hundred degrees Celsius, whereby the inner diameter of the rotor tube 3b due to thermal expansion, which is also called thermal expansion increases.
- the stub shaft 7 is then before ⁇ added to flush inserted into the heated rotor tube 3b.
- a heat shrinkage which is also called thermal contraction, instead of where ⁇ through the runner pipe 3b returns to its previous size and rotationally fixed to the stub shaft 7 is connected.
- the stub shaft 7 is for the most part substantially thinner than the inner diameter of the rotor tube 3b executed.
- the stub shaft 7 is made slightly thicker than the inner diameter of the rotor tube 3b in the cooled state, to allow a stable rotationally fixed shrink connection.
- the parallel holes 7c are arranged, which therefore do not extend over the full axial length of the stub shaft 7.
- the central bore 7b extends in axial direction over the full axial length of the stub shaft 7 through the rotation axis 4.
- the Mittelboh ⁇ tion 7b is arranged rotationally symmetrically around the rotation axis. 4
- the parallel bores 7c are arranged concentrically around the rotation axis 4 in the axial direction.
- the distance of the concentrically arranged parallel bores 7c in the circumferential direction to each other is preferably the same.
- 6 shows a three-dimensional representation of a second embodiment of a rotor 3b having a tube connected shaft stub 7.
- This second embodiment of the shafts ⁇ stub 7 corresponds essentially to the first embodiment of FIG 5, and differs in that the Wel ⁇ lenstummel is cylindrical , that is, that the stub shaft 7 has a nearly constant thickness over its axial length and preferably slightly thicker than the inner diameter of the rotor tube 3b in the cooled state, to ⁇ a stable rotationally fixed shrink connection.
- Both the central bore 7b and the parallel bores 7c extend in the axial direction over the full axial length of the stub shaft 7. Accordingly, in ⁇ example, in comparison to the first embodiment of Figure 5, larger inner diameter of the first bearing 17 on the non-drive side NDE required.
- the ship 14 is located in the water 16, so that the nacelle drive 15 is located below the water surface.
- the Gon ⁇ delantrieb 15 has an electric rotating machine 1 with a drive shaft 11 and a propeller 13.
- the propeller 13 is attached to the rear of the nacelle drive 15 as a pusher propeller, but can also be mounted as a traction propeller on the front of the gondola drive 15.
- a first heat exchanger 5 ⁇ be found in the hull of the vessel 14 outside the Gondelan ⁇ drive 15 and to the propulsion pod, a cooling medium 19 to.
- a heated compared to the supplied cooling medium 19 outflowing cooling medium 19c is passed in the opposite direction to the first heat exchanger 5, which the outflowing
- Cooling medium 19c cools again. Since the first réelletau ⁇ shear 5 is not in the nacelle drive 15, space is ⁇ saves and the nacelle drive 15 can be made more compact ⁇ who.
- the invention relates to an electric ro ⁇ tierende machine 1 having a rotatable about a rotation axis 4 rotor 3 with a rotor tube 3b and a shaft stub 7, wherein the stub shaft 7 is disposed on a Seaantriebs- side NDE of the electric rotating machine 1 and wherein the rotor tube 3b is mechanically connected at one axial end of the rotor tube 3b with the stub shaft 7.
- the stub shaft 7 has a central bore 7b and / or pa ⁇ rallele holes 7c, which are provided for supplying a cooling medium 19 in the rotor tube 3b.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP15186229 | 2015-09-22 | ||
PCT/EP2016/065341 WO2017050447A1 (en) | 2015-09-22 | 2016-06-30 | Cooling an electric rotating machine |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3338344A1 true EP3338344A1 (en) | 2018-06-27 |
Family
ID=54185891
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16733579.3A Ceased EP3338344A1 (en) | 2015-09-22 | 2016-06-30 | Cooling an electric rotating machine |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3338344A1 (en) |
CN (1) | CN108028566B (en) |
WO (1) | WO2017050447A1 (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017214507A1 (en) * | 2017-08-21 | 2019-02-21 | Continental Automotive Gmbh | Multi-part rotor shaft for an electric machine |
EP3451503A1 (en) * | 2017-08-29 | 2019-03-06 | Siemens Aktiengesellschaft | Rotor for an electric rotating machine |
US20190288571A1 (en) * | 2018-02-20 | 2019-09-19 | Wright Electric Inc. | Electric motors for aircraft propulsion and associated systems and methods |
CN108880106A (en) * | 2018-07-30 | 2018-11-23 | 山东冬瑞高新技术开发有限公司 | A kind of motor with air-cooling apparatus |
CN109167451A (en) * | 2018-09-21 | 2019-01-08 | 薛春红 | A kind of motor with rotor temperature equalization cooling device |
DE102018221569A1 (en) * | 2018-12-12 | 2020-06-18 | Thyssenkrupp Ag | Rotor device for an electrical machine and electrical machine |
DE102018009831A1 (en) * | 2018-12-14 | 2020-06-18 | Neumayer Tekfor Engineering Gmbh | Rotor for an electric motor, electric motor and method for producing a rotor |
FR3100222A1 (en) * | 2019-08-28 | 2021-03-05 | Motion Concept Group | Electric motorization system for watercraft, such as a surfboard or paddle board, with cooling means |
DE102021200283A1 (en) | 2021-01-14 | 2022-07-14 | Zf Friedrichshafen Ag | electrical machine |
US11824425B2 (en) * | 2021-02-04 | 2023-11-21 | Volvo Car Corporation | Electric machine |
US11942826B2 (en) * | 2021-09-24 | 2024-03-26 | Rolls-Royce Electrical Norway AS | Electric machine cooling |
CN116633081A (en) * | 2023-06-02 | 2023-08-22 | 山东华东风机有限公司 | Magnetic suspension high-speed blower with rotor spindle heat dissipation air duct |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI96590B (en) | 1992-09-28 | 1996-04-15 | Kvaerner Masa Yards Oy | Ship's propulsion device |
DE19627323A1 (en) | 1996-06-26 | 1998-01-02 | Siemens Ag | Ship drive with synchronous motor to be arranged in a gondola |
DE10000578A1 (en) * | 2000-01-10 | 2001-07-12 | Klaus Kranert | Cooling unit for one or two rotors of one or two electric motors arranged in gondola to drive propellers, has supply pipe for cold water in propeller cap and radial bores or pipes to heat source |
DE102010039609A1 (en) | 2010-08-20 | 2012-02-23 | Siemens Aktiengesellschaft | Electric nacelle drive for a floating device with internal stator cooling |
EP2757666B1 (en) | 2013-01-17 | 2015-06-24 | Siemens Aktiengesellschaft | Improved cooling of an electrical machine |
US9985501B2 (en) | 2013-08-16 | 2018-05-29 | Hamilton Sundstrand Corporation | Generators with open loop active cooling |
-
2016
- 2016-06-30 WO PCT/EP2016/065341 patent/WO2017050447A1/en active Application Filing
- 2016-06-30 EP EP16733579.3A patent/EP3338344A1/en not_active Ceased
- 2016-06-30 CN CN201680053620.9A patent/CN108028566B/en active Active
Also Published As
Publication number | Publication date |
---|---|
WO2017050447A1 (en) | 2017-03-30 |
CN108028566B (en) | 2020-01-07 |
CN108028566A (en) | 2018-05-11 |
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