EP1293409B1 - Coupling head of a central coupling with an electric heating - Google Patents

Coupling head of a central coupling with an electric heating Download PDF

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Publication number
EP1293409B1
EP1293409B1 EP02019918A EP02019918A EP1293409B1 EP 1293409 B1 EP1293409 B1 EP 1293409B1 EP 02019918 A EP02019918 A EP 02019918A EP 02019918 A EP02019918 A EP 02019918A EP 1293409 B1 EP1293409 B1 EP 1293409B1
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EP
European Patent Office
Prior art keywords
coupling head
recess
coupling
groove
bore
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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.)
Expired - Lifetime
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EP02019918A
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German (de)
French (fr)
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EP1293409A1 (en
Inventor
Dirk Behrens
Götz Dittmar
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Voith Turbo Scharfenberg GmbH and Co KG
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Voith Turbo Scharfenberg GmbH and Co KG
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Application filed by Voith Turbo Scharfenberg GmbH and Co KG filed Critical Voith Turbo Scharfenberg GmbH and Co KG
Priority to DK02019918T priority Critical patent/DK1293409T3/en
Publication of EP1293409A1 publication Critical patent/EP1293409A1/en
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B1/00—Details of electric heating devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G7/00—Details or accessories

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Resistance Heating (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Supporting Of Heads In Record-Carrier Devices (AREA)
  • Mechanical Operated Clutches (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Connection Of Plates (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

The heater comprises a heating component (3) that is placed in a recess in the coupling head (1) and covered towards the outside. The recess is precision fitted to the diameter of the heating component such that it is removably affixed to the coupling head. The linear recess is oriented parallel to the faceplate (2) of the coupling head.

Description

Die Erfindung betrifft einen Kupplungskopf einer Mittelpufferkupplung mit einer elektrischen Heizung nach dem Oberbegriff des Anspruchs 1.The invention relates to a coupling head a central buffer coupling with an electric heater according to the preamble of claim 1.

Bei S- Bahn- Triebzügen der Baureihe ET 420 sind Mittelpufferkupplungen im Einsatz gewesen, bei denen in die Pufferfläche des Kupplungskopfes im Bereich des Zentrierkegels und des Einlaufrichters eine etwa halbkreisförmige Nut eingebracht ist, in die ein elektrischer Heizkörper eingelegt ist. Der Heizkörper soll im Winter die Stirnfläche und den Kupplungsmechanismus von Eis und Schnee freihalten und die Kupplungsfunktion sicherstellen. Die Nut ist durch ein Hartlot, das einen Teil der Pufferfläche bildet, nach außen abgeschlossen. Als Hartlote können nur niedrig schmelzende Hartlote, z. B. teure Silberlote, verwendet werden, weil bei höheren Verarbeitungstemperaturen die Gefahr der Beschädigung des Heizkörpers besteht. Der Einsatz von Weichloten mit niedrigerem Schmelzpunkt erwies sich als ungeeignet, da bei der benötigten Heizleistung die Schmelztemperatur des Weichlotes erreicht werden konnte. Beim Einlöten von Heizkörpers besteht immer die Gefahr einer örtlichen Überhitzung und damit der Zerstörung des Heizkörpers vor Inbetriebnahme. Auch ist ein Einlöten des Heizkörpers ohne Hohlräume im Füllmaterial nur mit erheblichem Aufwand sicherzustellen. In den zu vermeidenden Hohlräumen kann es einerseits zu örtlichen Überhitzungen des Heizkörpers kommen oder andererseits kann im Betrieb Feuchtigkeit eindringen, was zu Korrosionen führt.In S-Bahn trainsets of the ET 420 series are central buffer couplings have been used in which in the buffer surface of the coupling head in the area of the centering cone and the inlet funnel one approx Semicircular groove is inserted, into which an electric radiator is inserted. The radiator should in winter the face and the Clutch mechanism of ice and snow clear and the Ensure coupling function. The groove is through a braze, the one Part of the buffer surface forms, closed to the outside. As brazing alloys can only low melting brazing, z. Expensive silver solders, be used because at higher processing temperatures the There is danger of damaging the radiator. The use of Soft melts with a lower melting point proved to be unsuitable because at the required heating power, the melting temperature of the Soft solder could be achieved. When soldering radiator There is always the risk of local overheating and thus of the Destruction of the radiator before commissioning. Also is a soldering of the Radiator without cavities in the filler only with considerable To ensure effort. In the cavities to avoid it can on the one hand come to local overheating of the radiator or other can penetrate moisture during operation, resulting in corrosion leads.

Weiter ist es bekannt, die Nut in der Stirnplatte, in die der Heizkörper eingelegt ist, durch eingeschweißte oder eingelötete Abdeckbleche nach außen abzudeckeken. Durch die erhöhte Wärmezufuhr beim Schweißen oder Löten muss ein möglicher Verzug oder eine Veränderung der Materialeigenschaften der Abdeckbleche als auch der Stirnplatte beachtet und berücksichtigt werden. Da die Nut aus Montagegründen deutlich breiter als der Durchmesser des Heizkörpers gefertigt ist, gibt es undefinierte Anlagen desselben an der Innenseite der Nut, was zu Wärmestau und Überhitzungen und als Folge zur Zerstörung des Heizkörpers führen kann. Neben der möglichen Beschädigung des eingelegten Heizkörpers durch das Schweiß-/Lötverfahren selbst ist im Hohlraum für den Heizkörper immer die Gefahr des Eindringens von Feuchtigkeit und damit der Zerstörung des Heizkörpers gegeben.Next, it is known, the groove in the face plate, in which the radiator is inserted by welded or soldered cover plates to cover the outside. Due to the increased heat during the Welding or soldering must be a possible delay or a Changing the material properties of the cover plates as well the face plate are considered and taken into account. Because the groove out Installation reasons significantly wider than the diameter of the radiator is made, there are undefined systems of the same on the inside the groove, resulting in heat accumulation and overheating and as a result to Destruction of the radiator may result. In addition to the possible Damage to the inserted radiator due to the welding / soldering process even in the cavity for the radiator is always the danger the ingress of moisture and thus the destruction of the Radiator given.

Aus der DE 296 11 148 U ist eine elektrische Heizung für Mittelpufferkupplungen bekannt, deren Heizkörper in der Nut mit Silikonwerkstoff verfüllt ist, der die äußere Abdeckung bildet und der bei der Verfüllung ein fließfähiger Einkomponentenwerkstoff ist, welcher unter Einwirkung von Luftfeuchtigkeit bei Raumtemperatur vernetzt und aushärtet. Aufgrund der relativ schlechten Wärmeleitfähigkeit λ = 0,21 W/(m x K) und der schlechten Temperaturbeständigkeit der bislang erhältlichen und eingesetzten, elastischen Vergußmassen kann es zu einer Überhitzung des Heizkörpers kommen, die zur Zerstörung der Vergußmasse und als Folge zur Zerstörung der Heizkörpers führt. Auch besteht bei der geringen Oberflächenfestigkeit derartiger Vergußmassen die Gefahr des Eindringens von Fremdkörpern und damit der mechanischen Beschädigung des Heizkörpers.From DE 296 11 148 U is an electric heater for Central buffer couplings known whose radiator in the groove with Silicone material is filled, which forms the outer cover and at the backfilling is a flowable one-component material, which crosslinked under the influence of humidity at room temperature and cures. Due to the relatively poor thermal conductivity λ = 0.21 W / (m × K) and the poor temperature resistance of the past available and used, elastic sealing compounds may be a Overheating of the radiator come to the destruction of the Potting compound and as a result leads to the destruction of the radiator. Also exists with the low surface strength of such Vergußmassen the risk of penetration of foreign bodies and thus mechanical damage of the radiator.

Weiterhin ist bei den vorgenannten Bauarten nachteilig, dass ein Austausch defekter Heizkörper, im allgemeinen werden Rohrwendelheizkörper verwendet, nur durch eine aufwendige Trennung der Lötnähte bzw. der Vergußmasse im Herstellerwerk bzw. in einer Werkstatt möglich ist. Nach Austausch defekter Heizkörper müssen die verwendeten Systeme durch erneutes Einlöten/Einschweißen oder Vergießen wieder aufwändig hergestellt werden.Furthermore, it is disadvantageous in the aforementioned types that a Exchange defective radiators, in general Rohrwendelheizkörper used, only by a complex separation the solder joints or the potting compound in the factory or in a Workshop is possible. After replacing defective radiators must the used systems by re-soldering / welding or Pouring back to be elaborately made.

Der Erfindung liegt daher die Aufgabe zugrunde, eine elektrische Heizung für den Kupplungskopf einer Mittelpufferkupplung derart auszubilden, dass der Wärmeübergang vom Heizkörper in den Kupplungskopf verbessert und der Aufwand zur Montage und Demontage des Heizkörpers verringert ist.The invention is therefore based on the object, an electrical Heater for the coupling head of a central buffer coupling such Form that the heat transfer from the radiator in the Coupling head improves and the effort for assembly and Disassembly of the radiator is reduced.

Die Aufgabe wird durch die in Anspruch 1 gekennzeichnete Heizung gelöst.The object is achieved by the heating characterized in claim 1 solved.

Zweckmäßige Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben.Advantageous developments of the invention are in the Subclaims specified.

Durch die passgenaue Ausbildung und Abstimmung der Ausnehmung auf den Querschnitt des Heizkörpers ist eine schnelle und gleichmäßige Wärmeeinleitung in den Kupplungskopf gewährleistet. Weiter vermindert das Einbringen des Heizkörpers nach mechanischer Fertigstellung des Kupplungskopfes einschließlich der stirnseitigen Abdeckung in die Ausnehmung die Gefahr der Beschädigung des Heizkörpers einschließlich seiner Zuleitung erheblich. Die beanspruchte lösbare Befestigung sichert das einfache Montieren und Demontieren des Heizkörpers.Through the tailor-made training and tuning of the recess on the cross section of the radiator is a fast and uniform Heat is ensured in the coupling head. Further diminished the introduction of the radiator after mechanical completion of the Coupling head including the front cover in the Recess the risk of damage to the radiator including its supply line considerably. The claimed solvable Mounting ensures easy mounting and dismounting Radiator.

Die Ausbildung der Ausnehmung gemäß Anspruch 2 stellt die bevorzugte Ausführungsform dar, die auf bisher bevorzugte Fertigungstechniken beruht.The formation of the recess according to claim 2 provides the preferred embodiment, which has hitherto been preferred Manufacturing techniques based.

Die Ausbildung der Ausnehmung gemäß Anspruch 3 stellt eine alternative Ausführungsform dar.The formation of the recess according to claim 3 provides a alternative embodiment.

Durch die Merkmale der Ansprüche 4 und 5 wird einerseits eine zweckmäßige Positionierung und anderseits eine günstige geometrische Ausführung angegeben, die die schnelle Wörmeeinleitung in die Stirnfläche des Kupplungskopfes gewährleistet.Due to the features of claims 4 and 5 on the one hand a appropriate positioning and on the other hand a favorable geometric Execution indicated that the fast word introduction into the Guaranteed face of the coupling head.

Durch das Merkmal nach Anspruch 6 ist ein einfaches Einfügen des Heizkörpers in den Kupplungskopf nach dessen mechanischer Fertigstellung erleichtert.By the feature of claim 6 is a simple insertion of the Radiator in the coupling head after its mechanical Completion facilitated.

Durch die Merkmale der Ansprüche 7, 8 und 9 wird die schnelle und gleichmäßige Wärmeeinleitung und Verteilung in den Kupplungskopf, insbesondere in die Stirnplatte begünstigt, was zur Verringerung von Abtauzeiten führt.Due to the features of claims 7, 8 and 9, the fast and uniform heat input and distribution in the coupling head, particularly favored in the face plate, resulting in the reduction of Defrosting times leads.

Durch Verwendung von lösbaren Befestigungen zur Fixierung der Heizkörper am Kupplungskopf gemäß Anspruch 10 ist durch schnelle Montage und Demontage ein zügiger Einbau, Ausbau und Austausch eines defekten Heizkörpers gewährleistet, wodurch auch kürzere Standzeiten für Fahrzeuge beim Austausch des Heizkörpers erzielt werden.By using releasable fasteners for fixing the Radiator at the coupling head according to claim 10 is characterized by fast Assembly and disassembly rapid installation, removal and replacement Ensures a defective radiator, resulting in shorter Service life for vehicles achieved when replacing the radiator become.

Die Erfindung ist nachfolgend anhand eines Ausführungsbeispiels mit Bezug auf die Zeichnung näher erläutert. Es zeigt

Fig. 1
eine elektrische Heizung für eine Mittelpufferkupplung mit eingebauten und zum Einbau vorgesehenen Heizkörpern in perspektivischer Darstellung.
The invention is explained in more detail using an exemplary embodiment with reference to the drawing. It shows
Fig. 1
an electric heater for a central buffer coupling with built-in radiators and intended for installation in a perspective view.

In dem in Fig. 1 dargestellten Kupplungskopf 1 einer Mittelpufferkupplung sind in seiner Stirnplatte Ausnehmungen in Ausbildung von Nuten angeordnet. Die Nuten sind in verschiedenen Orientierungen und Abstandsmaßen in die Stirnplatte eingebracht und nach vorn in der Ebene des Stirnplattenabschlusses durch Stirnbleche 2 abdeckbar bzw. abgedeckt. Die Stirnbleche 2 sind in angepasste Senkungen eingebracht und mit der Stirnplatte verbunden, vorzugsweise durch Hartlötung. Die dadurch entstehende Ausnehmung/Nuten sind zur Aufnahme von Heizkörpern 3 vorgesehen und sind passgenau hinsichtlich ihrer Querschnittsabmessung aufeinander abgestimmt. Jeder Heizkörper 3 ist nach dem Einführen über ein Halteblech 4 am Kupplungskopf 1 mittels lösbarer Befestigungsmittel 5 festlegbar und damit montier- und demortierbar. Wesentlich ist, dass der empfindliche Heizkörper 3 noch nach dem Einfügen des Stirnbleches 2 in den Kupplungskörper einbringbar ist, wodurch die Gefahr der Beschädigung der eingesetzte Heizkörper 3 und deren Zuleitungen im Fertigungsprozess der Mittelpufferkupplung erheblich gemindert ist. In the coupling head 1 shown in Fig. 1 a Central buffer coupling are in its front plate recesses in Formation of grooves arranged. The grooves are in different Orientations and distance dimensions introduced into the face plate and towards the front in the plane of the end plate closure by end plates 2 Coverable or covered. The end plates 2 are adapted Lowered and connected to the face plate, preferably by brazing. The resulting Recessed / grooves are provided for receiving radiators 3 and are perfectly fitting in terms of their cross-sectional dimension coordinated. Each heater 3 is after insertion via a retaining plate 4 on the coupling head 1 by means of releasable fastening means 5 fixable and thus mounted and demortierbar. It is essential that the sensitive radiator 3 still after the Insertion of the end plate 2 can be introduced into the coupling body, whereby the risk of damaging the used radiator 3 and their supply lines in the manufacturing process of the central buffer coupling is significantly reduced.

Die Ausnehmungen sind wie vorstehend beschrieben vorzugsweise als Nut in der Stirnplatte ausgebildet, die nach vorn mittels eines eingefügten Stirnbleches 2 abgedeckt ist. Die Ausnehmungen sind jedoch auch als Bohrung ausbildbar, wodurch zwar das Einfügen von Stirnblechen 2 entfällt, jedoch nicht unerhebliche Probleme bei der Spanabfuhr und beim Bohren in gehärteten und vergüteten Stählen zu lösen sind.The recesses are preferably as described above Groove formed in the face plate, the forward by means of a inserted front plate 2 is covered. The recesses are However, as a hole ausbildbar, whereby the insertion of Front plates 2 deleted, but not insignificant problems in the Chip removal and drilling in hardened and tempered steels too are solved.

Die Ausnehmungen/Nuten/Bohrungen sind vorzugsweise linear ausgebildet und im wesentlichen parallel zur Stirnplatte des Kupplungskopfes 1 ausgerichtet.The recesses / grooves / holes are preferably linear formed and substantially parallel to the end plate of the Coupling head 1 aligned.

Die Ausnehmungen/Nuten/Bohrungen erstrecken sich von den Rändern des Kupplungskopfes 1, insbesondere der Stirnplatte zum Innern.The recesses / grooves / holes extend from the edges of the coupling head 1, in particular the front plate to the interior.

Vorteilhaft erstreckt sich vom linken und rechten Rand der Stirnplatte zum Innern mindestens je eine Ausnehmung/Nut/Bohrung, in die je ein (Teil-)Heizkörper 3 eingesteckt und am Kupplungskopf 1 lösbar befestigt ist.Advantageously, extends from the left and right edges of the face plate to the interior at least one recess / groove / bore, in each one (Partial) radiator 3 inserted and releasably attached to the coupling head 1 is.

In einer bevorzugten Ausführungsform der Erfindung sind vom linken und rechten Rand der Stirnplatte zum Innern je zwei Ausnehmungen/Nuten//Bohrungen zur Aufnahme je eines (Teil-) Heizkörpers 3 angeordnet sind. Hierbei ist eine Ausnehmung/Nut/Bohrung jeder Seite oberhalb und die andere Ausnehmung/Nut/Bohrung unterhalb der die Stirnplatte durchdringenden Kupplungsorgane wie Zentriereinrichtungen, Zentrierelemente, Verschlussteile, Kuppelöse, Einlauftrichter/Einlauföffnung etc. In a preferred embodiment of the invention are from the left and right edge of the face plate to the inside two each Recesses / grooves // holes for receiving one (sub) Radiator 3 are arranged. Here is one Recess / groove / bore on each side above and the other Recess / groove / hole below the end plate penetrating coupling members such as centering devices, Centering elements, closing parts, dome lugs, Inlet funnel / inlet opening etc.

Als (Teil-) Heizkörper 3 finden vorzugsweise stabförmige
   Hochleistungspatronen
Verwendung.As (partial) radiator 3 find preferably rod-shaped
High performance cartridge
Use.

Nach heutigem Stand der Technik werden bisher Rohrwendelheizkörper in verschiedenen Formen in unterschiedlichen Längen und Abmessungen in Nuten eingelegt, wobei die Nuten im Regelfall mindestens bereichsweise nicht linear ausgeführt sind. Die Nutenbreite wird wegen der Maßtoleranzen beim Biegen der Rohrwendelheizkörper etwa doppelt so groß wie der Heizkörper ausgeführt. Durch die nunmehrige Verwendung von aufeinander abgestimmten, passgenauen Durchmessern von Ausnehmung/Nut/Bohrung werden undefinierte und ungestützte Anlagen des Heizkörpers in der Ausnehmung/Nut/Bohrung und örtlich erheblich voneinander abweichende Wärmeleitwerte vermieden. Eine lineare Ausbildung des Heizkörpers und die diesen aufnehmende Ausnehmung/Nut/Bohrung erleichtert bzw. ermöglicht das Einbringen von Heizkörpern nach mechanischer Fertigstellung des Kupplungskopfes. Die vorgesehene lösbare Besfestigung des Heizkörpers 3 ermöglicht eine schnelle Montage und Demontage.According to the current state of the art Rohrwendelheizkörper so far in different shapes in different lengths and Dimensions inserted in grooves, with the grooves as a rule at least partially non-linear. The groove width is because of the dimensional tolerances in bending the tube helical radiator about twice the size of the radiator. By the now use of coordinated, accurately fitting Diameters of recess / groove / bore undefined and unsupported installations of the radiator in the Recess / groove / bore and locally significantly different from each other deviating thermal conductivity values avoided. A linear education of the Radiator and this receiving recess / groove / bore facilitates or allows the introduction of radiators after Mechanical completion of the coupling head. The intended releasable Besfestigung the radiator 3 allows quick installation and disassembly.

Claims (10)

  1. Coupling head of a central buffer coupling comprising an electric heater, in which at least one heating element (3) is introduced into a recess in the coupling head (1) and is covered towards the outside, characterised in that the recess is custom-fitted to the cross section of the heating element (3) and that, once the recess has been completed, including the closure thereof towards the end face, the heating element (3) can be inserted into the recess to be removably fixed to the coupling head (1).
  2. Coupling head according to claim 1, characterised in that the recess for the heating element (3) is in the form of a groove in the end plate, covered towards the outside by means of a cover plate (2).
  3. Coupling head according to claim 1, characterised in that the recess for the heating element (3) is in the form of a bore in the coupling head (1) or in the end plate.
  4. Coupling head according to one of claims 1 to 3, characterised in that the recess/groove/bore is aligned substantially parallel to the end plate of the coupling head (1).
  5. Coupling head according to one or more of claims 1 to 4, characterised in that the recess/groove/bore is linear.
  6. Coupling head according to one or more of claims 1 to 5, characterised in that the recess/groove/bore extends from the edge of the coupling head (1) towards the interior.
  7. Coupling head according to one or more of claims 1 to 5, characterised in that one respective recess/groove/bore into each of which a respective (partial) heating element (3) is inserted extends from the left and right edges of the end plate towards the interior.
  8. Coupling head according to one of claims 1 or 2 or 4, characterised in that two respective recesses/grooves/bores into each of which a respective (partial) heating element (3) is inserted are arranged from the left and right edges of the end plate towards the interior.
  9. Coupling head according to claim 7, characterised in that one recess/groove/bore on each side is arranged above and the other recess/groove/bore on this side is arranged below the coupling members penetrating the end plate, such as centring device, centring elements, locking parts, coupling ring, inlet funnel/inlet port, etc..
  10. Coupling head according to one or more of claims 1 to 8, characterised in that the (partial) heating elements (3) are removably fixed to the coupling head (1) by means of a holding plate (4).
EP02019918A 2001-09-12 2002-09-04 Coupling head of a central coupling with an electric heating Expired - Lifetime EP1293409B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DK02019918T DK1293409T3 (en) 2001-09-12 2002-09-04 Clutch head in a central clutch with an electric heating

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10144838A DE10144838A1 (en) 2001-09-12 2001-09-12 Electrical heating for the coupling head of a middle buffer coupling
DE10144838 2001-09-12

Publications (2)

Publication Number Publication Date
EP1293409A1 EP1293409A1 (en) 2003-03-19
EP1293409B1 true EP1293409B1 (en) 2005-06-01

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Application Number Title Priority Date Filing Date
EP02019918A Expired - Lifetime EP1293409B1 (en) 2001-09-12 2002-09-04 Coupling head of a central coupling with an electric heating

Country Status (10)

Country Link
US (1) US7038169B2 (en)
EP (1) EP1293409B1 (en)
KR (1) KR100517682B1 (en)
CN (1) CN100469634C (en)
AT (1) ATE296739T1 (en)
AU (1) AU2002300978B2 (en)
DE (2) DE10144838A1 (en)
DK (1) DK1293409T3 (en)
ES (1) ES2243636T3 (en)
PL (1) PL198155B1 (en)

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EP1736392B1 (en) * 2005-06-22 2008-04-16 Voith Turbo Scharfenberg GmbH & Co. KG Joint structure with heated joint pin
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CN102826101A (en) * 2012-09-07 2012-12-19 资阳晨风电气有限公司 Heating flip cover device based on bullet train connector
DE102013218156A1 (en) * 2013-09-11 2015-03-26 Voith Patent Gmbh Coupling head of a central buffer coupling
DE102014202936A1 (en) * 2014-02-18 2015-08-20 Voith Patent Gmbh Guide unit for electric contact couplings and central buffer couplings for rail vehicles with a guided on a guide unit electrical contact coupling
DE102017127552A1 (en) * 2017-11-22 2019-05-23 Voith Patent Gmbh Faceplate for a railcar coupling head and railcar coupling head
CN110248426B (en) * 2018-08-22 2021-11-09 常州中车铁马科技实业有限公司 Variable-frequency heating system for coupler buffer system and heating device thereof
DE102021120546A1 (en) 2021-08-06 2023-02-09 Voith Patent Gmbh End plate for a railway vehicle coupling head and railway vehicle coupling head

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US20030047547A1 (en) 2003-03-13
DE10144838A1 (en) 2003-03-27
PL198155B1 (en) 2008-05-30
PL356020A1 (en) 2003-03-24
EP1293409A1 (en) 2003-03-19
US7038169B2 (en) 2006-05-02
AU2002300978B2 (en) 2008-05-15
DK1293409T3 (en) 2005-10-03
DE50203248D1 (en) 2005-07-07
ATE296739T1 (en) 2005-06-15
KR20030023537A (en) 2003-03-19
CN100469634C (en) 2009-03-18
CN1408594A (en) 2003-04-09
ES2243636T3 (en) 2005-12-01
KR100517682B1 (en) 2005-09-28

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