WO2004107541A1 - Transversalflussmaschine - Google Patents
Transversalflussmaschine Download PDFInfo
- Publication number
- WO2004107541A1 WO2004107541A1 PCT/EP2004/006007 EP2004006007W WO2004107541A1 WO 2004107541 A1 WO2004107541 A1 WO 2004107541A1 EP 2004006007 W EP2004006007 W EP 2004006007W WO 2004107541 A1 WO2004107541 A1 WO 2004107541A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- magnetic flux
- coil arrangement
- guide pieces
- permanent magnet
- rotor
- Prior art date
Links
- 230000004907 flux Effects 0.000 title claims abstract description 149
- 238000004804 winding Methods 0.000 claims abstract description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 19
- 239000002184 metal Substances 0.000 claims description 16
- 229910052751 metal Inorganic materials 0.000 claims description 16
- 229910052742 iron Inorganic materials 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000007704 transition Effects 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
- H02K21/145—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having an annular armature coil
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
- H02K2201/12—Transversal flux machines
Definitions
- the present invention relates to a transverse flux machine.
- the invention relates to a transverse flux machine with a stator and a rotor, wherein either the stator has a stator coil and the rotor is provided with permanent magnet elements, or the rotor has a rotor coil and the stator is provided with permanent magnet elements.
- transverse flux machine with C-shaped magnetic flux yokes is known, which additionally has I-shaped magnetic flux yokes at the air gap.
- the transverse flux machine from EP 0 218 522 A1 also has C-shaped magnetic flux yokes and additionally magnetic flux guide pieces arranged in axial rows, which are at least partially aligned with the permanent magnets of the rotor. The air gap runs axially.
- transverse flux machine means both motors and generators. It is irrelevant to the invention whether such a machine is designed as a rotating machine or, for example, as a linear motor. In addition, the invention can be used both with internal rotor machines and with external rotor machines.
- the object of the invention is to provide a compact and highly efficient transverse flux machine which allows a high power density.
- the invention teaches a transverse flux machine with a stator and a rotor.
- the stator has a coil arrangement and the rotor is provided with permanent magnet elements.
- the rotor can have a coil arrangement and the stator is provided with permanent magnet elements.
- the coil arrangement has at least one cylindrical winding and is bordered by a magnetic flux yoke which is approximately C-shaped in a sectional view taken along the central longitudinal axis of the coil arrangement.
- the magnetic flux yoke has a leg at each end, which at least partially encompasses one end face of the coil arrangement.
- the lateral surface of the coil arrangement facing permanent magnet elements is arranged in several, circumferentially spaced rows in each case a plurality of axially oriented magnetic flux guide pieces coaxial with the central longitudinal axis of the coil arrangement.
- a plurality of permanent magnet elements are arranged, spaced apart from the magnetic flux guide pieces, in circumferentially spaced rows, the magnetic orientation of which is alternating towards the air gap.
- the permanent magnet elements are at least partially aligned with at least some of the magnetic flux guide pieces.
- This arrangement ensures that a magnetic flux alternately flows from one leg of the magnetic flux yoke to the other leg of the magnetic flux yoke through the magnetic flux guide pieces and permanent magnet elements aligned with them.
- the magnetic flux changes from a first axially oriented row of the magnetic flux guide pieces and permanent magnet elements aligned to them to an adjacent second row and back again to the first row in an axial direction.
- the stator preferably has the coil arrangement with the magnetic flux guide pieces and the rotor is provided with the permanent magnet elements. This avoids the need for moving (for example rotating) current transitions to a coil arrangement in the rotor.
- the coil arrangement can have at least one circular-cylindrical winding and the approximately C-shaped magnetic flux yoke for an external rotor machine can be arranged inside the circular-cylindrical coil arrangement or for an internal rotor machine on the outside of the circular-cylindrical coil arrangement.
- the two legs of the magnetic flux yoke can extend from the respective end faces of the coil arrangement with one end section to the lateral surface of the circular-cylindrical coil arrangement on which the magnetic flux guide pieces are arranged.
- this lateral surface is the inner lateral surface of the circular cylindrical see coil arrangement and in an external rotor machine the outer surface of the circular cylindrical coil arrangement.
- the two end sections can be provided with recesses into which magnetic flux guide pieces protrude.
- the recesses are preferably as wide as the projections remaining between them.
- the magnetic flux yoke can be constructed from sheets or sheet metal sections. It is also possible for the magnetic flux yoke to be formed from iron particles pressed and sintered into the corresponding shape. Mixed forms from these two variants can also be used, in which transition regions from radially oriented sheet metal sections to axially oriented sheet metal sections are formed from pressed and sintered iron particles.
- the magnetic flux yoke can be designed in a central section connecting the two legs as a rolled sheet metal tube, its two legs as a stacked circular disk-shaped, radially oriented sheet metal stack, and / or their two end sections of the legs as a sheet metal stack oriented coaxially to the central longitudinal axis.
- the magnetic flux guide pieces can be formed from solid iron-containing metal, from stacked metal sheets or from iron particles pressed and sintered to the appropriate shape. This is primarily dependent on the operating frequency of the current flowing through the coil arrangement, since the eddy current losses in magnetic flux guide pieces made of solid ferrous metal increase with increasing frequency.
- the magnetic flux guide pieces can have a substantially cuboid shape. It is also possible to give them a shape that tapers towards their ends in width and / or height. Such a shape reduces or minimizes the magnetic stray fluxes between adjacent magnetic flux guide pieces.
- the permanent magnet elements preferably have a substantially cuboid shape; however, they can also have a shape which essentially corresponds to the shape of the magnetic flux guide pieces; they can therefore be rectangular, trapezoidal or triangular, or diamond-shaped, or the like.
- the coil arrangement can either be operated with current of a single phase or can be designed as a multiphase arrangement (preferably more than two). In the latter case, it can have a plurality of windings which are arranged coaxially next to one another and which are set up to be operated with a phase offset from one another.
- a magnetic flux guide bar can be arranged between two windings arranged next to one another from one of the magnetic flux guide pieces to the central section of the magnetic flux yoke connecting the two legs, the dimensions and the choice of material of the guide bar (iron powder, iron sheet, solid iron-containing material) Metal) is designed in such a way that it can conduct the magnetic flux resulting from a phase difference between the currents flowing through the two windings adjacent to it without reaching magnetic saturation.
- Connectors which are essentially ineffective magnetically and which fix the relative position of the magnetic flux guide pieces on the outer surface of the coil arrangement to one another can be arranged between adjacent magnetic flux guide pieces.
- FIG. 1 shows a schematic side view of a longitudinal section through an embodiment of a transverse flux machine according to the invention.
- FIG. 1 a shows a schematic side view of a development of the rotor from the transverse flux machine according to FIG. 1.
- FIG. 2 illustrates a development of a schematic top view of a stand of the embodiment of the transverse flux machine from FIG. 1 according to the invention.
- FIG. 3 illustrates a development of a schematic top view of a further embodiment of a stator of the transverse flux machine according to the invention from FIG. 1 with magnetic flux guide pieces modified compared to FIG. 2.
- FIG. 4 shows a further embodiment of a magnetic flux guide piece in a sectional side view.
- FIG. 5 illustrates an alternative embodiment of magnetic flux guide pieces between two separate coil sections, each of which forms a winding that can extend axially over a plurality of magnetic flux guide pieces.
- FIG. 1 shows a longitudinal section through an embodiment of a transverse flux machine 10 configured as an inner rotor machine, the invention also being applicable to an outer rotor machine.
- the transverse flux machine 10 has a stator 12 and a rotor 14.
- An air gap 16 is formed between the rotor 14 and the stator 12.
- the stator 12 is accommodated in a tubular housing 18 which has a bearing 22, 24 on each of its two end faces for receiving an output shaft 26.
- the output shaft 26 is connected in a conventional manner to the rotor 14 in a rotationally fixed manner.
- the stator 12 has a coil arrangement 28 with a cylindrical winding, which is arranged coaxially to the central longitudinal axis M of the transverse flux machine 10.
- the coil arrangement 28 is framed by a magnetic flux yoke 30 which is approximately C-shaped in a sectional view taken along the central longitudinal axis M of the coil arrangement.
- the magnetic flux yoke 30 has at each of its two ends a leg 32 which engages around a respective end face of the coil arrangement 28.
- On the inner lateral surface 28a of the coil arrangement 28 a multiplicity of magnetic flux guide pieces 38 are arranged coaxially to the central longitudinal axis M of the coil arrangement 28 in several axial rows (see also FIG. 2).
- the two legs 32 of the magnetic flux yoke 30 extend from the respective end faces of the coil arrangement 28, each with an end section 34 to that lateral surface 28a of the circular cylindrical coil arrangement 28 on which the magnetic flux guide pieces 38 are also arranged.
- the magnetic flux yoke 30 is constructed in several parts in this embodiment.
- a middle section 36 connecting the two legs 32 is produced as a multilayer> rolled sheet metal tube which is coaxially oriented to the central longitudinal axis.
- This sheet metal tube has at both ends a bevel 36a which opens outward in a funnel shape and to which the two legs 32 which conduct magnetic flux are connected.
- the two legs 32 are designed as radially oriented sheet-metal stacks stacked in the axial direction and stacked in the axial direction.
- the two end sections 34 of the legs 32 are designed as a stack of sheets oriented coaxially to the central longitudinal axis. As illustrated in FIG.
- the magnetic flux guide pieces 38 are arranged in rows between the two end sections 34 of the legs 32, which completely surround the ends of the coil arrangement 28.
- the two end sections 34 are provided with recesses 42 into which magnetic flux guide pieces 38 protrude.
- a protrusion 44 is formed between two adjacent recesses 42, each of which also has a magnetic flux guide piece 38 adjacent to it. This results in the axial displacement of adjacent rows of magnetic flux guide pieces 38, shown along FIG.
- permanent magnet elements 50 are arranged on the rotor 14, the magnetic orientation of which is alternating towards the air gap 16. This is illustrated by the alternating polarities "N" and "S". In certain positions of the
- the course of the magnetic flux is illustrated schematically, as it is oriented from one side of the stator 14 to the opposite side.
- the magnetic flux comes from one side, for example the right side of the magnetic flux yoke 30 in FIG. 2, radially outward through a projection 44 - via the air gap - into a first permanent magnet element 50 in alignment therewith (not shown in FIG. 2) a first row.
- the magnetic flux goes tangentially from the first permanent magnet element 50 into a permanent magnet element 50 (not shown in FIG. 2) lying in the adjacent row.
- the magnetic flux - via the air gap - goes into a magnetic flux aligned therewith -Director 38 and continues to flow axially therein.
- the magnetic flux from this magnetic flux guide piece 38 - via the air gap - radially into a next, in the same axial row second permanent magnet element 50.
- the magnetic flux radially - across the air gap - into an aligned magnetic flux guide piece 38 and continues to flow axially therein.
- the magnetic flux continues on this path until it reaches the opposite leg of the magnetic flux yoke.
- the magnetic flux alternately flows through magnetic flux guide pieces 38 and permanent magnet elements 50 aligned with them.
- the magnetic flux alternates between a first row of magnetic flux guide pieces 28 or in alignment therewith. the permanent magnet elements 50 to an adjacent second row and back to the first row progressively in the axial direction back and forth.
- the magnetic flux guide pieces 38 have an essentially cuboid shape.
- the shape of the magnetic flux guide pieces 38 matches the shape of the permanent magnet elements 50 except for their dimensions in the axial direction.
- FIG. 3 shows on the basis of the magnetic flux guide pieces 38 that they can have a width that tapers towards the end sections of the two legs. In addition to the taper in width, the magnetic flux guide pieces 38 can also taper in height toward their ends 38a.
- FIG. 4 in a side sectional view for a magnetic flux guide piece 38 from FIG. 3.
- essentially magnetically ineffective connectors 60 are arranged between adjacent magnetic flux guide pieces 38, which fix the relative position of the magnetic flux guide pieces to one another.
- connectors 60 can either be thin webs made of the same material as the magnetic flux guide pieces 38, which due to their small dimensions immediately reach magnetic saturation during operation and are therefore not magnetically proactively effective.
- the connectors can also be formed by plastic material introduced between the magnetic flux guide pieces 38.
- the permanent magnet elements 50 can have a shape which essentially corresponds to the shape of the magnetic flux guide pieces 38; they can therefore be rectangular, trapezoidal or triangular, or diamond-shaped, or the like. However, the permanent magnet elements 50 in the direction of the central longitudinal axis M are only about half as long as the magnetic flux guide pieces 38 aligned with them.
- a transverse flux machine is illustrated, which shows the coil arrangement with a single cylindrical winding coaxial to the central longitudinal axis M of the stator.
- a plurality of windings which are arranged coaxially next to one another and are energized in a phase-shifted manner relative to one another.
- the individual windings can each extend from the center of a magnetic flux guide piece 38 to the center of a further magnetic flux guide piece 38 in the axial direction. This is illustrated in FIG. 5, wherein a winding can extend over several (in FIG. 5 there are three) magnetic flux guide pieces 38 in the axial extent.
- a magnetic flux guide 38b is in each case connected from one of the magnetic flux guide 38 to the central section 36 of the magnetic flux yoke connecting the two legs 32. assigns.
- the magnetic flux guide bar 38b is dimensioned and designed in such a way that it can conduct the magnetic flux resulting from a phase difference between the currents flowing through the two windings without reaching magnetic saturation.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE502004004657T DE502004004657D1 (de) | 2003-06-03 | 2004-06-03 | Transversalflussmaschine |
EP04735888A EP1629590B1 (de) | 2003-06-03 | 2004-06-03 | Transversalflussmaschine |
US10/559,089 US7279820B2 (en) | 2003-06-03 | 2004-06-03 | Transversal flux machine |
JP2006508265A JP2006526974A (ja) | 2003-06-03 | 2004-06-03 | 横磁束機械 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10325085A DE10325085B3 (de) | 2003-06-03 | 2003-06-03 | Transversalflussmaschine |
DE10325085.9 | 2003-06-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004107541A1 true WO2004107541A1 (de) | 2004-12-09 |
Family
ID=33441564
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/006007 WO2004107541A1 (de) | 2003-06-03 | 2004-06-03 | Transversalflussmaschine |
Country Status (5)
Country | Link |
---|---|
US (1) | US7279820B2 (de) |
EP (1) | EP1629590B1 (de) |
JP (1) | JP2006526974A (de) |
DE (2) | DE10325085B3 (de) |
WO (1) | WO2004107541A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006024458A1 (de) * | 2004-08-27 | 2006-03-09 | Compact Dynamics Gmbh | Startervorrichtung zum andrehen von brennkraftmaschinen |
EP2763296A1 (de) | 2013-01-09 | 2014-08-06 | Airbus Helicopters | Elektrische Maschine mit Zwischenstücken mit mehreren Luftspalten und 3D-Magnetfluss |
US9685828B2 (en) | 2013-01-09 | 2017-06-20 | Airbus Helicopters | Electric machine with multiple air gaps and a 3D magnetic flux |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005036041B4 (de) * | 2005-08-01 | 2013-02-07 | Compact Dynamics Gmbh | Permanenterregte elektrische Maschine |
DE102006012215A1 (de) * | 2006-03-16 | 2007-09-20 | Mtu Aero Engines Gmbh | Transversalflussmaschine und Turbomaschine mit derartiger Transversalflussmaschie |
DE102007018930A1 (de) | 2007-04-21 | 2008-10-23 | Robert Bosch Gmbh | Elektrische Maschine mit aus Blechen zusammengesetzten Zähnen |
US7868511B2 (en) | 2007-05-09 | 2011-01-11 | Motor Excellence, Llc | Electrical devices using disk and non-disk shaped rotors |
JP2009247180A (ja) * | 2008-03-31 | 2009-10-22 | Univ Of Fukui | 横磁束型同期機 |
WO2010062764A2 (en) | 2008-11-03 | 2010-06-03 | Motor Excellence, Llc | Transverse and/or commutated flux system stator concepts |
JP2010213509A (ja) * | 2009-03-11 | 2010-09-24 | Univ Of Fukui | 横磁束型同期機 |
WO2011115634A1 (en) * | 2010-03-15 | 2011-09-22 | Motor Excellence Llc | Transverse and/or commutated flux systems having phase offset |
US8053944B2 (en) | 2010-03-15 | 2011-11-08 | Motor Excellence, Llc | Transverse and/or commutated flux systems configured to provide reduced flux leakage, hysteresis loss reduction, and phase matching |
US8395291B2 (en) | 2010-03-15 | 2013-03-12 | Electric Torque Machines, Inc. | Transverse and/or commutated flux systems for electric bicycles |
DE102010017973A1 (de) | 2010-04-23 | 2011-10-27 | Thomas Magnete Gmbh | Transversalmotor mit hybridem Stator und Verfahren zur Herstellung der Statorbauteile |
EP2400634B1 (de) * | 2010-06-25 | 2013-10-02 | Siemens Aktiengesellschaft | Generator, insbesondere für eine Windturbine |
WO2012067895A2 (en) | 2010-11-17 | 2012-05-24 | Motor Excellence, Llc | Transverse and/or commutated flux system coil concepts |
WO2012067896A2 (en) | 2010-11-17 | 2012-05-24 | Motor Excellence, Llc | Transverse and/or commutated flux systems having laminated and powdered metal portions |
CN103477538A (zh) | 2010-11-17 | 2013-12-25 | 电动转矩机器公司 | 具有分段定子层压件的横向和/或换向磁通系统 |
CN104953780A (zh) * | 2012-08-03 | 2015-09-30 | 埃塞克科技有限公司 | 模块化旋转横向磁通发电机 |
DE102013211971A1 (de) * | 2013-06-25 | 2015-01-08 | Bayerische Motoren Werke Aktiengesellschaft | Transversalflussmaschine sowie Außenrotor und Innenrotor für eine solche Maschine |
CN103472139A (zh) * | 2013-09-06 | 2013-12-25 | 苏州凯欧机械科技有限公司 | 一种用于超声波检测设备的双磁道轴向定位装置 |
US11870299B2 (en) * | 2015-01-07 | 2024-01-09 | Persimmon Technologies, Corp. | Motor with composite housing |
CN108377083A (zh) * | 2018-03-15 | 2018-08-07 | 鲁东大学 | 一种圆筒直线电机 |
US20200063595A1 (en) * | 2018-08-27 | 2020-02-27 | Michael Newgent | Compressed gas and recycled liquid turbine power system |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2797346A (en) * | 1954-07-16 | 1957-06-25 | Agnes Jones Ranseen | Electric motors |
EP0128099A2 (de) * | 1983-06-02 | 1984-12-12 | Electricite De France | Dynamo-elektrische Drehmaschine mit variabler Reluktanz |
EP0218522A1 (de) * | 1985-09-27 | 1987-04-15 | CGEE ALSTHOM Société anonyme dite: | Dauermagnetische Synchronmaschine mit mehreren Luftspalten |
US5854521A (en) * | 1995-04-27 | 1998-12-29 | Blum Gmbh | Multi-phase transverse magnetic flux machine |
US6236131B1 (en) * | 1997-04-03 | 2001-05-22 | Daimlerchrysler Rail Systems Gmbh | Unilateral transverse flux machine with a multi-strand design |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
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US2997346A (en) * | 1956-02-16 | 1961-08-22 | H G Weber And Company Inc | Bearing assembly |
US3633055A (en) * | 1970-06-22 | 1972-01-04 | Molon Motor & Coil Corp | Permanent magnet motor |
DE19507233C2 (de) * | 1994-04-15 | 1998-03-12 | Weh Herbert Prof Dr Ing Dr H C | Transversalflußmaschine mit Permanenterregung und mehrsträngiger Ankerwicklung |
DE19813155C1 (de) * | 1998-03-19 | 1999-10-28 | Abb Daimler Benz Transp | Mehrsträngige Transversalflußmaschine |
DE10036288A1 (de) * | 2000-07-26 | 2002-02-07 | Bosch Gmbh Robert | Unipolar-Transversalflußmaschine |
ATE492061T1 (de) * | 2002-04-11 | 2011-01-15 | Eocycle Technologies Inc | Elektrische maschine mit transversalem magnetischem fluss und verzahnungsrotor |
-
2003
- 2003-06-03 DE DE10325085A patent/DE10325085B3/de not_active Expired - Fee Related
-
2004
- 2004-06-03 DE DE502004004657T patent/DE502004004657D1/de active Active
- 2004-06-03 WO PCT/EP2004/006007 patent/WO2004107541A1/de active IP Right Grant
- 2004-06-03 EP EP04735888A patent/EP1629590B1/de not_active Expired - Fee Related
- 2004-06-03 US US10/559,089 patent/US7279820B2/en active Active
- 2004-06-03 JP JP2006508265A patent/JP2006526974A/ja not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2797346A (en) * | 1954-07-16 | 1957-06-25 | Agnes Jones Ranseen | Electric motors |
EP0128099A2 (de) * | 1983-06-02 | 1984-12-12 | Electricite De France | Dynamo-elektrische Drehmaschine mit variabler Reluktanz |
EP0218522A1 (de) * | 1985-09-27 | 1987-04-15 | CGEE ALSTHOM Société anonyme dite: | Dauermagnetische Synchronmaschine mit mehreren Luftspalten |
US5854521A (en) * | 1995-04-27 | 1998-12-29 | Blum Gmbh | Multi-phase transverse magnetic flux machine |
US6236131B1 (en) * | 1997-04-03 | 2001-05-22 | Daimlerchrysler Rail Systems Gmbh | Unilateral transverse flux machine with a multi-strand design |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006024458A1 (de) * | 2004-08-27 | 2006-03-09 | Compact Dynamics Gmbh | Startervorrichtung zum andrehen von brennkraftmaschinen |
EP2763296A1 (de) | 2013-01-09 | 2014-08-06 | Airbus Helicopters | Elektrische Maschine mit Zwischenstücken mit mehreren Luftspalten und 3D-Magnetfluss |
US9496757B2 (en) | 2013-01-09 | 2016-11-15 | Airbus Helicopters | Electric machine with intermediate pieces having multiple air gaps and a 3D magnetic flux |
US9685828B2 (en) | 2013-01-09 | 2017-06-20 | Airbus Helicopters | Electric machine with multiple air gaps and a 3D magnetic flux |
Also Published As
Publication number | Publication date |
---|---|
DE502004004657D1 (de) | 2007-09-27 |
US7279820B2 (en) | 2007-10-09 |
JP2006526974A (ja) | 2006-11-24 |
EP1629590A1 (de) | 2006-03-01 |
DE10325085B3 (de) | 2004-12-09 |
EP1629590B1 (de) | 2007-08-15 |
US20060244329A1 (en) | 2006-11-02 |
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