EP2845781A1 - Rail vehicle with brake resistance housing - Google Patents
Rail vehicle with brake resistance housing Download PDFInfo
- Publication number
- EP2845781A1 EP2845781A1 EP14178180.7A EP14178180A EP2845781A1 EP 2845781 A1 EP2845781 A1 EP 2845781A1 EP 14178180 A EP14178180 A EP 14178180A EP 2845781 A1 EP2845781 A1 EP 2845781A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rail vehicle
- housing
- roof
- braking resistor
- outlet grille
- 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.)
- Withdrawn
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C17/00—Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
- B61C17/04—Arrangement or disposition of driving cabins, footplates or engine rooms; Ventilation thereof
Definitions
- the invention relates to a rail vehicle with arranged on its roof housing for at least one braking resistor, wherein the housing has a discharge grille for discharging the sucked for cooling the braking resistor cooling air.
- Such a rail vehicle is known, for example, from the vehicles of the RENFE 103 series, which are high-speed vehicles.
- the exhaust grilles on brake resistors used there are placed at an angle of approx. 45 ° in the housing of the braking resistor. This has the consequence that, in particular when using two braking resistors with associated housings in the "roof garden" of the vehicle, a V-shaped hole is formed. This not only brings disadvantages in terms of the overall aesthetic impression of the rail vehicle, but also aerodynamic disadvantages due to higher pressure losses due to unsteady air deflection.
- the invention has the object, a rail vehicle of the type mentioned in such a way that the design of the brake resistor housing is aerodynamically optimized and meets higher aesthetic requirements.
- a deflecting element for the sucked cooling air is provided within the housing, which deflects in the region of the braking resistor parallel to the roof of the rail vehicle conveyed air upwards in the direction of the outlet grille, and the outlet grille is arranged horizontally.
- the overall result is a housing configuration with substantially arranged perpendicular to each other side surfaces, including the proposed exhaust grille.
- a fundamentally favorable aerodynamic situation results already solely in that the exhaust grille is arranged horizontally.
- a further improvement may result from the fact that the exhaust grille is flush with the roof and / or a brake resistor housing roof.
- the roof will be formed as a high roof, the brake resistor housing is inserted flush in the high roof.
- the deflecting element is formed by a curved baffle, so that a deflection of the conveyed in the region of the braking resistor parallel to the roof of the rail vehicle air is deflected upward in aerodynamically favorable manner.
- a curved guide plate is preferable to a baffle plate, which would however also accomplish the required deflection.
- a guidance of the conveyed air is further improved by additional curved baffles, which can be arranged in the air flow, essentially above the deflection element, which limits the air flow downwards.
- the curved guide plate may have a deflection angle which is ⁇ 45 °, so that a favorable flow guidance is brought about in the direction of the outlet grille.
- the exhaust grille may have at least predominantly extending in the longitudinal direction of the rail vehicle bars. This has the advantage that even with resulting angles between the plane spanned by the outlet grille level and the main flow direction in the region of the outlet grille, a high passage of cooling air through the outlet grille can be ensured. Just by the horizontal choice of the arrangement of the outlet grille can typically be such an angle is not avoided. The resulting negative effects are removed by the said arrangement of the bars.
- the o.g. Outlet grille ideally consist exclusively of horizontal bars in the vehicle longitudinal direction.
- the deflecting element can end on the outlet side at a distance from the outlet grille.
- the result is that blown cooling air is partially removed through the outlet grille and partially through a gap between the outlet grille and the outlet side edge of the deflecting element.
- Another advantage of this design is the fact that with opposite placement of two braking resistors - ie grid to grid with corresponding opposite intake - the blown air of two braking resistors in this area meets and can dodge forward or backward depending on the direction of travel, which advantageous pressure conditions causes at the exhaust ports of the braking resistors.
- braking resistor housing 1 shows a horizontally arranged exhaust grille 2.
- Arrow A denotes the direction of travel of a rail vehicle, on the roof of the housing 1 for the braking resistor (not shown) is mounted.
- the roof of the rail vehicle is here as a high roof and a roof of the housing 1 for the braking resistor is arranged flush with the adjacent high roof.
- the exhaust grille 2 also connects flush to both the adjacent high roof area and the roof of the brake resistor housing 1, so that favorable aerodynamic conditions are created.
- the braking resistor would be arranged in an inner space 3 of the housing 1, and sucked cooling air is guided past it.
- the cooling air moves parallel to the horizontally arranged roof of the rail vehicle.
- a deflecting element 5 is arranged on the side of the cooling air flow averted from the upper side of the housing and is present as a curved guide plate. Its task is to divert the cooling air flow in the direction of the top of the housing and thus of the outlet grille 2. As in the FIGS.
- an arrow B indicates the main flow direction of the cooling air flow
- an arrow C is arranged perpendicular to the outlet grille 2
- the flow direction according to arrow C would be optimal.
- the deflection angle of the deflection element 5 is up to 45 °.
- the housing 1 shows on its upper side a spoiler 6, which lies in the direction of travel of the rail vehicle in front of the outlet grille 2 during operation of the rail vehicle.
- FIG. 1 In addition, a second housing 7 for a second braking resistor (not shown) is indicated, whose design corresponds to that of the braking resistor housing 1, so that the two housings 1, 7 are designed mirror-symmetrically with respect to a vertical plane between the housings 1, 7. A promotion of cooling air for the second braking resistor would take place in the direction of travel of the rail vehicle.
- the illustrated flow distribution of FIG. 1 is based on the application that both braking resistors are in operation.
- FIG. 2 shows further operating cases for the brake resistor housings 1, 7 FIG. 2 the standstill for the rail vehicle is shown, namely when both braking resistors are switched on.
- FIG. 3 also shows the state case, however, there is the second braking resistor off, while the first braking resistor housed in the housing 1, is turned on.
- a comparison of the representations after the Figures 2 and 3 illustrates the influence of an additionally activated second braking resistor.
- the outlet grille 2 is as in FIG. 4 illustrated, designed such that its grating bars extend predominantly in the longitudinal direction of the rail vehicle.
- FIG. 4 There are a total of four longitudinally extending bars 10, wherein extending in the transverse direction of the rail vehicle bars is omitted.
- the individual bars 10 are each attached end to end with double nuts on retaining plates 11.
- the retaining plates 11 in turn are connected to each other via lateral connecting plates 12 which extend parallel to the bars 10.
- the retaining plates 11 can be fixed via suitable screw connections 13 with respect to the braking resistor housing 1.
- the selected embodiment of the outlet grille 2 ensures a high passage for sucked cooling air, which leaves the housing 1 via the outlet grille 2.
Abstract
Die Erfindung betrifft ein Schienenfahrzeug mit auf seinem Dach angeordnetem Gehäuse (1) für wenigstens einen Bremswiderstand, wobei das Gehäuse (1) ein Ausblasgitter (2) zur Abführung der zur Kühlung des Bremswiderstands angesaugten Kühlluft aufweist, wobei innerhalb des Gehäuses (1) ein Umlenkelement (5) für die angesaugte Kühlluft vorgesehen ist, das im Bereich des Bremswiderstands parallel zum Dach des Schienenfahrzeugs geförderte Luft nach oben in Richtung des Ausblasgitters (2) ablenkt, und das Ausblasgitter (2) horizontal angeordnet ist.The invention relates to a rail vehicle with arranged on its roof housing (1) for at least one braking resistor, wherein the housing (1) comprises a discharge grille (2) for discharging the sucked for cooling the braking resistor cooling air, wherein within the housing (1) has a deflecting element (5) is provided for the sucked cooling air, which deflects in the region of the braking resistor parallel to the roof of the rail vehicle conveyed air upwards in the direction of the outlet grille (2), and the outlet grille (2) is arranged horizontally.
Description
Die Erfindung bezieht sich auf ein Schienenfahrzeug mit auf seinem Dach angeordnetem Gehäuse für wenigstens einen Bremswiderstand, wobei das Gehäuse ein Ausblasgitter zur Abführung der zur Kühlung des Bremswiderstands angesaugten Kühlluft aufweist.The invention relates to a rail vehicle with arranged on its roof housing for at least one braking resistor, wherein the housing has a discharge grille for discharging the sucked for cooling the braking resistor cooling air.
Ein solches Schienenfahrzeug ist beispielsweise von den Fahrzeugen der RENFE-Baureihe 103 bekannt, bei denen es sich um Hochgeschwindigkeitsfahrzeuge handelt. Die dort eingesetzten Ausblasgitter an Bremswiderständen sind aus aerodynamischen Gründen unter ca. 45° geneigt im Gehäuse des Bremswiderstands platziert. Dies hat zur Folge, dass insbesondere bei Einsatz von zwei Bremswiderständen mit zugehörigen Gehäusen im "Dachgarten" des Fahrzeugs ein V-förmiges Loch entsteht. Dies bringt nicht nur Nachteile im Hinblick auf den ästhetischen Gesamteindruck des Schienenfahrzeugs mit sich, sondern auch aerodynamische Nachteile aufgrund höherer Druckverluste infolge nicht stetiger Luftumlenkung.Such a rail vehicle is known, for example, from the vehicles of the RENFE 103 series, which are high-speed vehicles. For aerodynamic reasons, the exhaust grilles on brake resistors used there are placed at an angle of approx. 45 ° in the housing of the braking resistor. This has the consequence that, in particular when using two braking resistors with associated housings in the "roof garden" of the vehicle, a V-shaped hole is formed. This not only brings disadvantages in terms of the overall aesthetic impression of the rail vehicle, but also aerodynamic disadvantages due to higher pressure losses due to unsteady air deflection.
Ausgehend hiervon liegt der Erfindung die Aufgabe zugrunde, ein Schienenfahrzeug der eingangs genannten Art derart weiterzuentwickeln, dass die Auslegung des Bremswiderstandsgehäuses aerodynamisch optimiert wird und höheren ästhetischen Ansprüchen genügt.Proceeding from this, the invention has the object, a rail vehicle of the type mentioned in such a way that the design of the brake resistor housing is aerodynamically optimized and meets higher aesthetic requirements.
Diese Aufgabe wird bei dem Schienenfahrzeug dadurch gelöst, dass innerhalb des Gehäuses ein Umlenkelement für die angesaugte Kühlluft vorgesehen ist, das im Bereich des Bremswiderstands parallel zum Dach des Schienenfahrzeugs geförderte Luft nach oben in Richtung des Ausblasgitters ablenkt, und das Ausblasgitter horizontal angeordnet ist.This object is achieved with the rail vehicle in that a deflecting element for the sucked cooling air is provided within the housing, which deflects in the region of the braking resistor parallel to the roof of the rail vehicle conveyed air upwards in the direction of the outlet grille, and the outlet grille is arranged horizontally.
Durch die horizontale Anordnung des Ausblasgitters ergibt sich insgesamt eine Gehäusekonfiguration mit im Wesentlichen senkrecht zueinander angeordneten Seitenflächen, und zwar einschließlich des vorgesehenen Ausblasgitters.Due to the horizontal arrangement of the outlet grille, the overall result is a housing configuration with substantially arranged perpendicular to each other side surfaces, including the proposed exhaust grille.
Eine grundsätzlich günstige aerodynamische Situation ergibt sich bereits allein dadurch, dass das Ausblasgitter horizontal angeordnet ist. Eine weitere Verbesserung kann sich dadurch ergeben, dass das Ausblasgitter bündig mit dem Dach und/oder einem Bremswiderstandsgehäusedach abschließt. In diesem Fall wird das Dach als Hochdach ausgebildet sein, wobei das Bremswiderstandsgehäuse in das Hochdach bündig eingesetzt ist.A fundamentally favorable aerodynamic situation results already solely in that the exhaust grille is arranged horizontally. A further improvement may result from the fact that the exhaust grille is flush with the roof and / or a brake resistor housing roof. In this case, the roof will be formed as a high roof, the brake resistor housing is inserted flush in the high roof.
Bevorzugt ist das Umlenkelement von einem gekrümmten Leitblech gebildet, so dass in aerodynamisch günstigerer Weise eine Umlenkung der im Bereich des Bremswiderstands parallel zum Dach des Schienenfahrzeugs geförderte Luft nach oben umgelenkt wird. Insbesondere ist ein solches gekrümmtes Leitblech einer Prallplatte vorzuziehen, die jedoch auch die erforderliche Umlenkung bewerkstelligen würde. Eine Führung der geförderten Luft wird weiter verbessert durch zusätzliche gekrümmte Leitbleche, die im Luftstrom angeordnet sein können, und zwar im Wesentlichen oberhalb des Umlenkelements, welches den Luftstrom nach unten begrenzt.Preferably, the deflecting element is formed by a curved baffle, so that a deflection of the conveyed in the region of the braking resistor parallel to the roof of the rail vehicle air is deflected upward in aerodynamically favorable manner. In particular, such a curved guide plate is preferable to a baffle plate, which would however also accomplish the required deflection. A guidance of the conveyed air is further improved by additional curved baffles, which can be arranged in the air flow, essentially above the deflection element, which limits the air flow downwards.
Das gekrümmte Leitblech kann einen Umlenkwinkel aufweisen, der ≤ 45° ist, so dass eine günstige Strömungsführung in Richtung auf das Ausblasgitter herbeigeführt wird.The curved guide plate may have a deflection angle which is ≤ 45 °, so that a favorable flow guidance is brought about in the direction of the outlet grille.
Das Ausblasgitter kann wenigstens überwiegend in Längsrichtung des Schienenfahrzeugs verlaufende Gitterstäbe aufweisen. Dies hat den Vorteil, dass auch bei sich ergebenden Winkeln zwischen der von dem Ausblasgitter aufgespannten Ebene und der Hauptströmungsrichtung im Bereich des Ausblasgitters ein hoher Durchtritt von Kühlluft durch das Ausblasgitter gewährleistet werden kann. Gerade durch die horizontale Wahl der Anordnung des Ausblasgitters lässt sich typischer Weise ein solcher Winkel nicht vermeiden. Die sich daraus ergebenden negativen Auswirkungen werden durch die genannte Anordnung der Gitterstäbe aufgehoben.The exhaust grille may have at least predominantly extending in the longitudinal direction of the rail vehicle bars. This has the advantage that even with resulting angles between the plane spanned by the outlet grille level and the main flow direction in the region of the outlet grille, a high passage of cooling air through the outlet grille can be ensured. Just by the horizontal choice of the arrangement of the outlet grille can typically be such an angle is not avoided. The resulting negative effects are removed by the said arrangement of the bars.
Wenn die Gitter- bzw. Gehäusesteifigkeit es zulässt, kann das o.g. Ausblasgitter idealerweise ausschließlich aus horizontalen Gitterstäben in Fahrzeuglängsrichtung bestehen.If the grid or housing stiffness allows it, the o.g. Outlet grille ideally consist exclusively of horizontal bars in the vehicle longitudinal direction.
Eine günstige Montage des Umlenkelementes ergibt sich, wenn es über Haltebleche an dem Ausblasgitter befestigt ist.A favorable installation of the deflection results when it is attached via retaining plates on the exhaust grille.
Zudem kann das Umlenkelement auslassseitig in einem Abstand zum dem Ausblasgitter enden. Die hat zur Folge, dass ausgeblasene Kühlluft teilweise durch das Ausblasgitter und teilweise durch einen Zwischenraum zwischen dem Ausblasgitter und dem auslassseitigen Rand des Umlenkelementes abgeführt wird. Ein weiterer Vorteil dieser Ausführung ist darin zu sehen, dass bei gegenläufiger Platzierung zweier Bremswiderstände - also Gitter an Gitter mit entsprechend entgegengesetzter Ansaugung - die ausgeblasene Luft von beiden Bremswiderständen in diesem Bereich aufeinandertrifft und je nach Fahrtrichtung nach vorne oder hinten ausweichen kann, was vorteilhafte Druckverhältnisse an den Ausblasöffnungen der Bremswiderstände bewirkt.In addition, the deflecting element can end on the outlet side at a distance from the outlet grille. The result is that blown cooling air is partially removed through the outlet grille and partially through a gap between the outlet grille and the outlet side edge of the deflecting element. Another advantage of this design is the fact that with opposite placement of two braking resistors - ie grid to grid with corresponding opposite intake - the blown air of two braking resistors in this area meets and can dodge forward or backward depending on the direction of travel, which advantageous pressure conditions causes at the exhaust ports of the braking resistors.
Ein Ausführungsbeispiel der Erfindung wird nachfolgend unter Bezugnahme auf die Zeichnung noch näher erläutert. Es zeigen:
Figur 1- eine schematische Seitenansicht einer Gehäuseanordnung für wenigstens einen Bremswiderstand in einer ersten Betriebssituation,
Figur 2- eine schematische Seitenansicht der Gehäuseanordnung von
in einer zweiten Betriebssituation,Figur 1 Figur 3- eine schematische Seitenansicht der Gehäuseanordnung von
in einer dritten Betriebssituation undFigur 1 - Figur 4
- eine perspektivische Ansicht eines Auslassbereichs eines Gehäuses für einen Bremswiderstand.
- FIG. 1
- 1 a schematic side view of a housing arrangement for at least one braking resistor in a first operating situation,
- FIG. 2
- a schematic side view of the housing assembly of
FIG. 1 in a second operating situation, - FIG. 3
- a schematic side view of the housing assembly of
FIG. 1 in a third operational situation and - FIG. 4
- a perspective view of an outlet region of a housing for a braking resistor.
Das in
Der Bremswiderstand wäre in einem Innenraum 3 des Gehäuses 1 anzuordnen, und an ihm wird angesaugte Kühlluft vorbeigeführt. Im Innenraum 3 bewegt sich die Kühlluft parallel zum horizontal angeordneten Dach des Schienenfahrzeugs. In einem Auslassbereich 4 ist ein Umlenkelement 5 auf der der Gehäuseoberseite abgewandten Seite des Kühlluftstroms angeordnet und liegt als gekrümmtes Leitblech vor. Dessen Aufgabe ist es, dem Kühlluftstrom in Richtung auf die Oberseite des Gehäuses und damit des Ausblasgitters 2 umzulenken. Wie in den
Zur Unterstützung eines Luftaustritts durch das Ausblasgitter 2 zeigt das Gehäuse 1 auf seiner Oberseite einen Spoiler 6, der im Betrieb des Schienenfahrzeugs in dessen Fahrtrichtung vor dem Ausblasgitter 2 liegt.To support an air outlet through the
In
Die
Wie bereits oben erläutert, ergeben sich durch das Auseinanderfallen des optimalen Strömungsvektors gemäß Pfeil C und des tatsächlichen Strömungsvektors gemäß Pfeil B für die Hauptströmungsrichtung grundsätzlich Nachteile für den Durchtritt des Kühlungsstroms durch das Auslassgitter 2.As already explained above, due to the falling apart of the optimal flow vector according to arrow C and the actual flow vector according to arrow B for the main flow direction, there are basically disadvantages for the passage of the cooling flow through the
Zur Minimierung dieser Nachteile ist das Auslassgitter 2, wie in
Claims (5)
dadurch gekennzeichnet,
dass innerhalb des Gehäuses (1) ein Umlenkelement (5) für die angesaugte Kühlluft vorgesehen ist, das im Bereich des Bremswiderstands parallel zum Dach des Schienenfahrzeugs geförderte Luft nach oben in Richtung des Ausblasgitters (2) ablenkt, und
das Ausblasgitter (2) horizontal angeordnet ist.Rail vehicle with housing (1) arranged on its roof for at least one braking resistor, wherein the housing (1) has a discharge grille (2) for discharging the cooling air sucked in to cool the braking resistor,
characterized,
that within the housing (1) a deflection element (5) is provided for the sucked cooling air, which deflects in the region of the braking resistor parallel to the roof of the rail vehicle conveyed air upwards in the direction of the outlet grille (2), and
the outlet grille (2) is arranged horizontally.
dass das horizontal angeordnete Ausblasgitter (2) bündig mit dem Dach und/oder einem Bremswiderstandsgehäusedach abschließt.Rail vehicle according to claim 1, characterized
that the horizontally arranged outlet grille (2) is flush with the roof and / or a braking resistor housing roof.
dadurch gekennzeichnet, dass
das Umlenkelement (5) von einem gekrümmten Leitblech gebildet ist.Rail vehicle according to claim 1 or 2,
characterized in that
the deflecting element (5) is formed by a curved guide plate.
dadurch gekennzeichnet, dass
das gekrümmte Leitblech einen Umlenkwinkel aufweist der kleiner gleich 45° ist.Rail vehicle according to claim 3,
characterized in that
the curved guide plate has a deflection angle which is less than or equal to 45 °.
dadurch gekennzeichnet, dass
das Ausblasgitter (2) wenigstens überwiegend in Längsrichtung des Schienenfahrzeugs verlaufende Gitterstäbe (10) aufweist.Rail vehicle according to one of claims 1 to 4,
characterized in that
the outlet grille (2) at least predominantly in the longitudinal direction of the rail vehicle extending grating bars (10).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201310217628 DE102013217628A1 (en) | 2013-09-04 | 2013-09-04 | Rail vehicle with brake resistor housing |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2845781A1 true EP2845781A1 (en) | 2015-03-11 |
Family
ID=51212752
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14178180.7A Withdrawn EP2845781A1 (en) | 2013-09-04 | 2014-07-23 | Rail vehicle with brake resistance housing |
Country Status (2)
Country | Link |
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EP (1) | EP2845781A1 (en) |
DE (1) | DE102013217628A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015208074A1 (en) * | 2015-04-30 | 2016-11-03 | Siemens Aktiengesellschaft | Vehicle, in particular rail vehicle |
DE102019216838B3 (en) | 2019-10-31 | 2021-02-18 | Siemens Mobility GmbH | Vehicle with an air outlet opening |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0578549A1 (en) * | 1992-07-06 | 1994-01-12 | Gec Alsthom Transport Sa | Railway traction unit equipped with braking rheostats for a high speed train |
US6430045B1 (en) * | 1999-10-22 | 2002-08-06 | Cressall Resistors Limited | Cooling resistor banks |
US20060022631A1 (en) * | 2004-07-23 | 2006-02-02 | Marsh Gregory A | Locomotive dynamic braking grid package configuration |
EP2308735A1 (en) * | 2009-10-06 | 2011-04-13 | Bombardier Transportation GmbH | Cooling braking resistors of a track bound vehicle |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004046275B4 (en) * | 2003-09-23 | 2006-12-21 | Saxotec Gmbh & Co.Kg | Device for monitoring the temperature of high-voltage assemblies |
FR2926276B1 (en) * | 2008-01-11 | 2010-09-03 | Alstom Transport Sa | VENTILATION ASSEMBLY OF A RAILWAY VEHICLE APPARATUS |
-
2013
- 2013-09-04 DE DE201310217628 patent/DE102013217628A1/en not_active Ceased
-
2014
- 2014-07-23 EP EP14178180.7A patent/EP2845781A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0578549A1 (en) * | 1992-07-06 | 1994-01-12 | Gec Alsthom Transport Sa | Railway traction unit equipped with braking rheostats for a high speed train |
US6430045B1 (en) * | 1999-10-22 | 2002-08-06 | Cressall Resistors Limited | Cooling resistor banks |
US20060022631A1 (en) * | 2004-07-23 | 2006-02-02 | Marsh Gregory A | Locomotive dynamic braking grid package configuration |
EP2308735A1 (en) * | 2009-10-06 | 2011-04-13 | Bombardier Transportation GmbH | Cooling braking resistors of a track bound vehicle |
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DE102013217628A1 (en) | 2015-03-05 |
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