EP1993895B1 - Wheel-set bearing housing for a rail vehicle - Google Patents

Wheel-set bearing housing for a rail vehicle Download PDF

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Publication number
EP1993895B1
EP1993895B1 EP06830404.7A EP06830404A EP1993895B1 EP 1993895 B1 EP1993895 B1 EP 1993895B1 EP 06830404 A EP06830404 A EP 06830404A EP 1993895 B1 EP1993895 B1 EP 1993895B1
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EP
European Patent Office
Prior art keywords
wheel set
rlg
ras
rla
pfe
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Active
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EP06830404.7A
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German (de)
French (fr)
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EP1993895A1 (en
Inventor
Harald Kiendler
Johannes Hirtenlechner
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Siemens AG Oesterreich
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Siemens AG Oesterreich
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Priority to PL06830404T priority Critical patent/PL1993895T3/en
Publication of EP1993895A1 publication Critical patent/EP1993895A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F7/00—Rail vehicles equipped for use on tracks of different width

Definitions

  • the invention relates to a chassis or bogie for a rail vehicle, wherein the chassis has one, two or three sets of wheels with wheelset bearings and Radsatzlagergephinusen for supporting primary springs.
  • EP 0857636 describes a chassis according to the features of the preamble of independent claim 1.
  • Fig.1 has a chassis FAR or bogie for a rail vehicle wheel sets RAS, RAS 'with wheelset bearings RLA, RLA' on.
  • the wheelset bearing RLA, RLA ' can be positioned at at least two different positions in the wheelset bearing housing RLG. That is, in the wheelset bearing housing RLG a position is provided both for the wheelset bearing RLA of the wheel set RAS and the wheelset bearing RLA 'of the wheel set RAS'.
  • SFW1 and SPW2 At a border crossing or a transition from one rail gauge to a second of the wheelset RLA is replaced by the wheel RAS 'and vice versa. Ie. the wheel set RAS is removed and the wheel set RAS 'installed.
  • An introduction of force from the primary springs PFE into the respectively associated wheelset bearing housings RLG can take place in a region of the wheel set bearing housing RLG, which between the intended position of a wheelset bearing RLA one of the first Sehienenspur shimmere SPW1 assigned wheel set RAS and the intended position of a wheelset bearing RLA 'one of the second rail track width SPW2 assigned wheel set RAS 'is located.
  • the center MI2 of the axle box bearing housing RLG can lie substantially on the central axis a of the associated primary spring PFE.
  • the primary springs PFE which are connected with their upper end portion on a chassis or bogie frame DGR, coil springs or rubber springs or are designed as Stahlschrauben- or rubber compression springs.
  • the transverse offset between the center of the primary suspension PFE and the wheelset bearing center (BP) / 2 or (PN) / 2, which arises when the wheelsets are replaced, is determined in accordance with Fig. 2a and 2b illustrated invention by an adapter ring ADR, ADR 'in design for the first Schwwenspurweite SPW1 and the second rail track width SPW2 added, which is centered and fixed axially when changing the wheelset RAS, RAS' in Radsatzlagergephase 4, RLG.
  • the relation B ⁇ P ⁇ N applies.
  • the adapter ring for the narrower track width SPW1 is in Fig. 2a with ADR and the adapter ring for the wider gauge SPW2 in Fig. 2b denoted by ADR '.
  • the bearing housing RLG can be designed to be split horizontally.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Springs (AREA)
  • Support Of The Bearing (AREA)
  • Vibration Prevention Devices (AREA)

Description

Die Erfindung betrifft ein Fahrwerk bzw. Drehgestell für ein Schienenfahrzeug, wobei das Fahrwerk ein, zwei oder drei Radsätze mit Radsatzlagern und Radsatzlagergehäusen zur Abstützung von Primärfedern aufweist.The invention relates to a chassis or bogie for a rail vehicle, wherein the chassis has one, two or three sets of wheels with wheelset bearings and Radsatzlagergehäusen for supporting primary springs.

Der grenzüberschreitende Eisenbahnverkehr zwischen Ländern mit unterschiedlichen Schienenspurweiten erfordert spezielle Maßnahmen, um den Betrieb eines Schienenfahrzeuges auf den unterschiedlichen Fahrwegen zu ermöglichen. Bei herkömmlichen Fahrwerken bzw. Drehgestellen ist es bauartbedingt nicht möglich, bei einer Änderung der Schienenspurweite einfach die Radsätze gegen passende auszutauschen, da diese Fahrwerke bzw. Drehgestelle von ihrer Konstruktion, insbesondere durch ihre Anordnung der Primärfedern, auf eine bestimmte Spurweite ausgelegt sind.Cross-border railway traffic between countries with different track gauge widths requires special measures to enable the operation of a rail vehicle on the different routes. In conventional suspensions or bogies, it is not possible due to the design, simply replace the wheel sets with a change in the track gauge against suitable because these bogies or bogies are designed by their construction, in particular by their arrangement of the primary springs to a specific gauge.

EP 0857636 beschreibt ein Fahrwerk gemäß den Merkmalen des Oberbegriffes des unabhängigen Anspruchs 1. EP 0857636 describes a chassis according to the features of the preamble of independent claim 1.

Bei einem Wechsel der Schienenspurweite müssen die Passagiere entweder in ein für die neue Schienenspurweite passendes Schienenfahrzeug umsteigen bzw. Güter umgeladen oder die Fahrwerke bzw. Drehgestelle getauscht oder Spurwechselradsätze mit einer ortsfesten Umspuranlage verwendet werden. Alle diese Maßnahmen sind mit einem hohen Zeit und Personalaufwand und/oder hohen Investitions- und Erhaltungskosten verbunden.When changing the rail gauge, the passengers must either change to a suitable for the new rail gauge rail vehicle or reloaded goods or swapped the bogies or bogies or Spurwechselradsätze be used with a stationary Umspuranlage. All of these measures involve a great deal of time and labor and / or high investment and maintenance costs.

Es ist daher eine Aufgabe der Erfindung die oben genannten Nachteile zu überwinden.It is therefore an object of the invention to overcome the above-mentioned disadvantages.

Diese Aufgabe wird gelöst mit einem Fahrwerk gemäß Anspruch 1.This object is achieved with a chassis according to claim 1.

Die Erfindung samt weiteren Vorteilen wird im Folgenden anhand einiger nicht einschränkender Ausführungsbeispiele näher erläutert, welche in den Zeichnungen dargestellt sind. In diesen zeigen schematisch:

  • Fig. 1 eine Krafteinleitung von einer Primärfeder in ein Radsatzlager eines Radsatzes der ersten Spurweite und eines Radsatzes der zweiten Spurweite bei einem erfindungsgemäßen Fahrwerk bzw. Drehgestell;
  • Fig. 2a eine erste Variante einer Radsatzlagerung inklusive Lagergehäuse eines erfindungsgemäßen Fahrwerks bzw. Drehgestell mit einem Radsatz einer ersten Spurweite;
  • Fig. 2b die Radsatzlagerung aus Fig. 2a, welche für einen Radsatz mit einer zweiten Spurweite adaptiert ist.
The invention together with further advantages will be explained below with reference to some non-limiting embodiments, which are illustrated in the drawings. In these show schematically:
  • Fig. 1 an introduction of force from a primary spring in a wheelset bearing of a wheel of the first track and a wheel of the second track in a chassis or bogie according to the invention;
  • Fig. 2a a first variant of a wheelset bearing including bearing housing of a chassis according to the invention or bogie with a wheel of a first track;
  • Fig. 2b the wheelset storage Fig. 2a , which is adapted for a wheel set with a second track.

Gemäß Fig.1 weist ein Fahrwerk FAR bzw. Drehgestell für ein Schienenfahrzeug Radsätze RAS, RAS' mit Radsatzlagern RLA, RLA' auf. Die Radsatzlager RLA', RLA' der Radsätze RAS, RAS' sind in einem montierten Zustand der Radsätze RAS, RAS' in Radsatzlagergehäusen RLG des Fahrwerks angeordnet. Auf den Radsatzlagergehäusen RLG, die an dem Schienenfahrzeug bzw. an dem Fahrwerksrahmen FAR angelenkt sind, stützen sich Primärfedern PFE ab. Das Radsatzlager RLA, RLA' ist an zumindest zwei unterschiedlichen Positionen in dem Radsatzlagergehäuse RLG positionierbar. D.h. in dem Radsatzlagergehäuse RLG ist sowohl für das Radsatzlager RLA des Radsatzes RAS als auch das Radsatzlager RLA' des Radsatzes RAS' eine Position vorgesehen.According to Fig.1 has a chassis FAR or bogie for a rail vehicle wheel sets RAS, RAS 'with wheelset bearings RLA, RLA' on. The wheelset bearings RLA ', RLA' of the wheel sets RAS, RAS 'are arranged in a mounted state of the wheelsets RAS, RAS' in wheelset bearing housings RLG of the chassis. On the wheelset bearing housings RLG, which are hinged to the rail vehicle or on the chassis frame FAR, rely primary springs PFE. The wheelset bearing RLA, RLA 'can be positioned at at least two different positions in the wheelset bearing housing RLG. That is, in the wheelset bearing housing RLG a position is provided both for the wheelset bearing RLA of the wheel set RAS and the wheelset bearing RLA 'of the wheel set RAS'.

Die beiden dargestellten Radsätze RLA, RLA' entsprechen unterschiedlichen Spurweiten SFW1 und SPW2. Bei einem Grenzübergang bzw. einem Übergang von einer Schienenspurweite zu einer zweiten wird der Radsatz RLA durch den Radsatz RAS' ausgetauscht und vice versa. D. h. der Radsatz RAS wird aus- und der Radsatz RAS' eingebaut.The two illustrated wheel sets RLA, RLA 'correspond to different track widths SFW1 and SPW2. At a border crossing or a transition from one rail gauge to a second of the wheelset RLA is replaced by the wheel RAS 'and vice versa. Ie. the wheel set RAS is removed and the wheel set RAS 'installed.

Eine Krafteinleitung von den Primärfedern PFE in die je zugehörigen Radsatzlagergehäuse RLG kann in einem Bereich des Radsatzlagergehäuses RLG erfolgen, der zwischen der vorgesehenen Position eines Radsatzlagers RLA eines der ersten Sehienenspurweite SPW1 zugeordneten Radsatzes RAS und der vorgesehenen Position eines Radsatzlagers RLA' eines der zweiten Schienenspurweite SPW2 zugeordneten Radsatzes RAS' liegt.An introduction of force from the primary springs PFE into the respectively associated wheelset bearing housings RLG can take place in a region of the wheel set bearing housing RLG, which between the intended position of a wheelset bearing RLA one of the first Sehienenspurweite SPW1 assigned wheel set RAS and the intended position of a wheelset bearing RLA 'one of the second rail track width SPW2 assigned wheel set RAS 'is located.

Wie aus Fig. 1 weiters ersichtlich, kann der Mittelpunkt MI2 des Radsatzlagergehäuses RLG im Wesentlichen auf der Mittelachse a der zugehörige Primärfeder PFE liegen.How out Fig. 1 Furthermore, it can be seen, the center MI2 of the axle box bearing housing RLG can lie substantially on the central axis a of the associated primary spring PFE.

In Fig.1 wird der Radsatzlagermittenabstand (=Abstand von der Mitte MI1, MI1' des linken Lagers RLA bzw. RLA' zur Mitte des rechten Lagers) für die erste schmälere Schisnenspurweite SPW1 mit N und für die zweite breitere Schienenspurweite SPW2 mit B bezeichnet. Der Mittenabstand der Krafteinleitung der Primärfederung (=Abstand von Mitte der linken Primärfederung PFE zur Mitte bzw. der Mittelachsen a der rechten Primärfederung) wird mit P bezeichnet. Günstigerweise weisen die Primärfedern PFE, welche mit ihrem oberen Endbereich an einem Fahrwerks- bzw. Drehgestellrahmen DGR verbunden sind, Schraubenfedern oder Gummifedern auf bzw. sind als Stahlschrauben- oder Gummidruckfedern ausgeführt.In Fig.1 is the Radsatzlagermittenabstand (= distance from the center MI1, MI1 'of the left bearing RLA or RLA' to the center of the right bearing) for the first narrower Schisnenspurweite SPW1 with N and for the second wider rail track width SPW2 with B. The center distance of the force introduction of the primary suspension (= distance from the center of the left primary suspension PFE to the center or the center axis a of the right primary suspension) is designated by P. Conveniently, the primary springs PFE, which are connected with their upper end portion on a chassis or bogie frame DGR, coil springs or rubber springs or are designed as Stahlschrauben- or rubber compression springs.

Es gilt: B≥ P ≥ N.The following applies: B≥ P ≥ N.

Somit erfolgt die Krafteinleitung der Primärfederung PFE im Bereich der Differenz der beiden Radsatzlagermitbenabstände B und N. In Fig. 1 sind mit B/2, N/2 und P/2 die Normalabstände der Radsatzlagermitten MI1, MI1' bzw. der Mittelachse a zu der Fahrwerks- bzw. Drehgestellmitte DGM bezeichnet.Thus, the force introduction of the primary suspension PFE in the range of the difference between the two Radsatzlagermitbenabstände B and N. In Fig. 1 are denoted by B / 2, N / 2 and P / 2, the normal distances of the wheelset bearing centers MI1, MI1 'and the central axis a to the chassis or bogie center DGM.

Der bei einem Austausch der Radsätze entstehende Querversatz zwischen der Mitte der Primärfederung PFE und der Radsatzlagermitte (B-P)/2 bzw. (P-N)/2 wird gemäß der in Fig. 2a und 2b dargestellten Erfindung durch einen Adapterring ADR, ADR' in Ausführung für die erste Schwnenspurweite SPW1 und die zweiten Schienenspurweite SPW2 aufgenommen, der bei Wechsel des Radsatzes RAS, RAS' im Radsatzlagergehäuse RLG zentriert und axial fixiert wird. Für Fig. 2a und Fig. 2b gilt die Relation B ≥ P ≥ N. Der Adapterring für die schmälere Spurweite SPW1 ist in Fig. 2a mit ADR und der Adapterring für die breitere Spurweite SPW2 in Fig. 2b mit ADR' bezeichnet. Zur Montage des dargestellten Adapterrings ADR, ADR' kann das Lagergehäuse RLG horizontal geteilt ausgeführt sein. The transverse offset between the center of the primary suspension PFE and the wheelset bearing center (BP) / 2 or (PN) / 2, which arises when the wheelsets are replaced, is determined in accordance with Fig. 2a and 2b illustrated invention by an adapter ring ADR, ADR 'in design for the first Schwwenspurweite SPW1 and the second rail track width SPW2 added, which is centered and fixed axially when changing the wheelset RAS, RAS' in Radsatzlagergehäuse RLG. For Fig. 2a and Fig. 2b the relation B ≥ P ≥ N applies. The adapter ring for the narrower track width SPW1 is in Fig. 2a with ADR and the adapter ring for the wider gauge SPW2 in Fig. 2b denoted by ADR '. For mounting the illustrated adapter ring ADR, ADR ', the bearing housing RLG can be designed to be split horizontally.

Claims (13)

  1. Chassis (FAR) or bogie for a rail vehicle, wherein the chassis (FAR) or bogie comprises at least one wheel set (RAS, RAS') with wheel set bearings (RLA, RLA') and wheel set bearing housings (RLG) for supporting primary springs (PFE), and wherein the wheel set bearings (RLA, RLA') can be positioned on at least two different positions in the wheel set bearing housings, characterized in that a transverse offset produced by using a wheel set (RAS, RAS') assigned to the first or the second track gauge between the central axis (a) of the primary spring (PFE) and the central point of the wheel set bearing (RLA, RLA') assigned to the primary spring (PFE) is taken up by an axially fixed adapter ring (ADR, ADR') centred in the associated wheel set bearing housing (RLG).
  2. Wheel set bearing housing (RLG''') for a rail vehicle, wherein the wheel set bearing housing (RLG''') for a wheel set (RAS) is provided with a first track gauge (SPW1), characterized in that after replacement with a wheel set bearing housing (RLG''''), which is provided for a wheel set (RAS') with a second track gauge, and assembly on a chassis (FAR) or a bogie, it comprises the interfaces relative to the chassis (FAR) or bogie at essentially the same positions as the wheel set bearing housing (RLG'''') provided for the wheel set (RAS') with the second track gauge (SPW2).
  3. Chassis (FAR) or bogie for a rail vehicle, wherein the chassis (FAR) or bogie comprises at least one wheel set (RAS, RAS') with wheel set bearings (RLA, RLA') and wheel set bearing housings (RLG) for supporting primary springs (PFE), characterized in that it comprises wheel set bearing housing (RLG, RLG', RLG'', RLG''', RLG'''') according to claim 1 or 2,
  4. Chassis according to claim 3, characterized in that a load transmission of the primary springs (PFE) into the associated wheel set bearing housing (RLG, RLG', RLG'', RLG''', RLG'''') takes place at least in a region of the wheel set bearing housing (RLG), which is defined by a difference between the distance (N) between the central points (MI1) of the wheel set bearing (RLA) of a wheel set (RAS) for a first track gauge and the distance (B) between the central points (MI1') of the wheel set bearing (RAS') of a wheel set (RAS) for a second track gauge.
  5. Chassis or bogie according to claim 3 or 4, characterized in that a load transmission of the primary springs (PFE) into the associated wheel set bearing housing (RLG, RLG', RLG'', RLG''', RLG'''') takes place at least in one region of the respective wheel set bearing housing (RLG, RLG', RLG'', RLG''', RLG'''') which lies between the provided position of a wheel set bearing (RLA) of a wheel set (RAS) assigned to a first track gauge and the provided position of a wheel set bearing (RLA') of a wheel set (RAS') assigned to a second track gauge.
  6. Chassis or bogie according to one of claims 3 to 5, characterized in that a normal distance (P) of the central axes (a) of opposite primary springs (PFE) of the same wheel set (RAS, RAS') is greater than or equal to the distance (N) of the central point (MI1) of the wheel set bearing (RLA) of a wheel set (RAS) corresponding to a first track gauge and is smaller than or equal to the distance (B) of the central points (MI1') of the wheel set bearing (RLA') of a wheel set (RAS') corresponding to a second track gauge.
  7. Chassis or bogie according to one of claims 3 to 6, characterized in that a transverse offset produced by using a wheel set (RAS, RAS') assigned to the first or second track gauge between the central axis (a) of the primary spring (PFE) and the central point of the wheel set bearing (RLA, RLA') assigned to the primary spring (PFE) is taken up by an adapter ring (ADR, ADR') fixed axially and centred in the associated wheel set bearing housing (RLG).
  8. Chassis or bogie according to one of claims 3 to 7, characterized in that a transverse offset produced by using a wheel set (RAS, RAS') assigned to the first or the second track gauge between the central axis (a) of the primary spring (PFE) and the central point of the wheel set bearing (RLA, RLA') assigned to the primary spring (PFE) is taken up by means of at least one distance ring (DIR).
  9. Chassis or bogie according to one of claims 3 to 8, characterized in that the central point (MI2) of the wheel set bearing housing (RLG'') and the central point (MI1, MI1') of the wheel set bearing (RLA, RLA') are laterally offset from one another so that a transverse offset produced by using a wheel set (RAS, RAS') assigned to the first or the second track gauge between the central axis (a) of the primary spring (PFE) and the central point (MI1, MI1') of the wheel set bearing (RLA, RLA') assigned to the primary spring (PFE) is taken up by rotating the bearing housing (RLG) by 180° about its vertical axis.
  10. Chassis or bogie according to one of claims 3 to 10, characterized in that provision is made for different bearing housings (RLG''', RLG'''') for taking up a transverse offset produced by using a wheel set (RAS, RAS') assigned to the first or the second track gauge for wheel sets (RAS, RAS') of different track widths between the central axis (a) of the primary spring (PFE) and the central point of the wheel set bearing (RLA, RLA') assigned to the primary spring (PFE).
  11. Chassis or bogie according to one of claims 3 or 10, characterized in that the primary springs (PFE) comprise steel helical springs or rubber pressure springs.
  12. Chassis or bogie according to one of claims 3 to 11, characterized in that the central point (MI2) of the wheel set bearing housing (RLG, RLG', RLG'', RLG''', RLG'''') essentially lies on the central axis (a) of the associated primary spring (PFE).
  13. Rail vehicle having a chassis or bogie according to one of claims 3 to 12.
EP06830404.7A 2006-03-14 2006-12-06 Wheel-set bearing housing for a rail vehicle Active EP1993895B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL06830404T PL1993895T3 (en) 2006-03-14 2006-12-06 Wheel-set bearing housing for a rail vehicle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0041406A AT503257A3 (en) 2006-03-14 2006-03-14 WHEEL BAG HOUSING FOR A RAIL VEHICLE
PCT/EP2006/069358 WO2007104369A1 (en) 2006-03-14 2006-12-06 Wheel-set bearing housing for a rail vehicle

Publications (2)

Publication Number Publication Date
EP1993895A1 EP1993895A1 (en) 2008-11-26
EP1993895B1 true EP1993895B1 (en) 2013-04-24

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EP06830404.7A Active EP1993895B1 (en) 2006-03-14 2006-12-06 Wheel-set bearing housing for a rail vehicle

Country Status (8)

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EP (1) EP1993895B1 (en)
AT (1) AT503257A3 (en)
ES (1) ES2410163T3 (en)
PL (1) PL1993895T3 (en)
PT (1) PT1993895E (en)
RU (1) RU2448010C2 (en)
UA (1) UA92515C2 (en)
WO (1) WO2007104369A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109774734B (en) * 2019-03-11 2024-04-12 京东科技信息技术有限公司 Rail running gear and rail robot

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0857636A2 (en) * 1997-02-10 1998-08-12 Sumitomo Metal Industries, Ltd. Gauge-changeable bogie for railroad carbody

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1558329A (en) * 1966-10-19 1969-02-28
FR2381651A1 (en) * 1977-02-24 1978-09-22 Sambre & Meuse Usines Bogie for railway vehicle - has specially shaped sole bars which can be reversed relative to traverse for gauge conversion
SU1344663A1 (en) * 1986-04-30 1987-10-15 В. А. Малышев Rail vehicle bogie for tracks of different gauges
SU1564030A1 (en) * 1987-12-28 1990-05-15 Н.С.Авраменко, В.Г.Сергунин и. В.Е.Смышл ева Running gear of rail vehicle
RU2056313C1 (en) * 1992-02-07 1996-03-20 Центральное конструкторское бюро транспортного машиностроения Extensible wheelset
ES2078137B1 (en) * 1992-09-30 1996-08-16 Invastesa BOGIES FOR RAILWAY VEHICLES WITH VARIABLE SEPARATION BETWEEN WHEELS.
JP3893187B2 (en) * 1997-04-22 2007-03-14 財団法人鉄道総合技術研究所 Rail vehicle variable gauge truck
RU2222447C2 (en) * 2000-09-22 2004-01-27 Федеральное государственное унитарное предприятие Всероссийский научно-исследовательский институт железнодорожного транспорта МПС России Extensible wheelset

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0857636A2 (en) * 1997-02-10 1998-08-12 Sumitomo Metal Industries, Ltd. Gauge-changeable bogie for railroad carbody

Also Published As

Publication number Publication date
ES2410163T3 (en) 2013-07-01
EP1993895A1 (en) 2008-11-26
RU2008140518A (en) 2010-04-20
AT503257A3 (en) 2010-06-15
PT1993895E (en) 2013-06-12
PL1993895T3 (en) 2013-08-30
WO2007104369A1 (en) 2007-09-20
AT503257A2 (en) 2007-09-15
RU2448010C2 (en) 2012-04-20
UA92515C2 (en) 2010-11-10

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