EP0911239A1 - Axle or pair of axles forming a bogie for a low-floor railway vehicle - Google Patents

Axle or pair of axles forming a bogie for a low-floor railway vehicle Download PDF

Info

Publication number
EP0911239A1
EP0911239A1 EP98402637A EP98402637A EP0911239A1 EP 0911239 A1 EP0911239 A1 EP 0911239A1 EP 98402637 A EP98402637 A EP 98402637A EP 98402637 A EP98402637 A EP 98402637A EP 0911239 A1 EP0911239 A1 EP 0911239A1
Authority
EP
European Patent Office
Prior art keywords
axle
bogie
axles
pair
vehicle
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.)
Granted
Application number
EP98402637A
Other languages
German (de)
French (fr)
Other versions
EP0911239B1 (en
Inventor
Stéphane Brun
Jean Christophe Loiseau
Alain Rodet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alstom Transport SA
Original Assignee
GEC Alsthom Transport SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by GEC Alsthom Transport SA filed Critical GEC Alsthom Transport SA
Publication of EP0911239A1 publication Critical patent/EP0911239A1/en
Application granted granted Critical
Publication of EP0911239B1 publication Critical patent/EP0911239B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61FRAIL 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
    • B61F3/00Types of bogies
    • B61F3/02Types of bogies with more than one axle
    • B61F3/04Types of bogies with more than one axle with driven axles or wheels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61CLOCOMOTIVES; MOTOR RAILCARS
    • B61C9/00Locomotives or motor railcars characterised by the type of transmission system used; Transmission systems specially adapted for locomotives or motor railcars
    • B61C9/38Transmission systems in or for locomotives or motor railcars with electric motor propulsion
    • B61C9/48Transmission systems in or for locomotives or motor railcars with electric motor propulsion with motors supported on vehicle frames and driving axles, e.g. axle or nose suspension
    • B61C9/50Transmission systems in or for locomotives or motor railcars with electric motor propulsion with motors supported on vehicle frames and driving axles, e.g. axle or nose suspension in bogies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61FRAIL 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
    • B61F3/00Types of bogies
    • B61F3/16Types of bogies with a separate axle for each wheel

Definitions

  • the present invention relates to an axle or torque bogie axles intended to equip a vehicle of the full "low floor” type.
  • the passenger floor is typically about 350 mm above the rail level.
  • the low-floor vehicle is for example a vehicle tram type railroad.
  • the first architecture has the advantage, thanks to the presence of one motor per wheel, to have wheels independent in rotation which facilitate registration in bogie curve.
  • the first architecture has the disadvantage major to generate a high cost of the motorization function (electric traction-braking equipment, motors, reducers).
  • the first architecture also presents the disadvantage of not allowing to benefit from the principle mechanical self-stabilization of the railway axle brought by the taper of the wheel treads wedged on the same tree.
  • the second architecture has the major drawback of too large overall longitudinal axle dimensions to obtain a low-floor vehicle integral.
  • the second architecture presents the disadvantage of not allowing positioning, in the body and to the right of the bogie, typically sixteen seats in the direction of travel, due to the arrangement longitudinal of the motors above the rails.
  • the second architecture also presents the disadvantage of not allowing either to benefit from the principle of mechanical self-stabilization of the axle railway brought by the conicity of the tread tables wheels wedged on the same tree.
  • the third architecture has the disadvantage of do not allow to have, in the box and the four corners of the bogie, access doors, due to the arrangement of the motor outside the bogie and therefore under the checkout.
  • the third architecture also presents the disadvantage of not allowing a bogie to be produced fully motorized because it is necessary install at least two access doors in the cash box near the bogie.
  • the transmission device of the movement of the motor to the wheels by rotating axle is placed too high to allow a vehicle to be obtained low floor.
  • an object of the invention is an axle or torque bogie axles intended to equip a vehicle of the type with low integral floor, not having the disadvantages of axles or axle pairs forming bogie of the prior art and having a space requirement general longitudinal reduction of axle to allow to obtain a vehicle with a full low floor.
  • the bogie axle or pair of axles intended to equip a vehicle of the type with full low floor is as characterized below.
  • each wheel is driven by a motor-reduction unit attached to the wheel.
  • the four wheels are then independent in rotation.
  • each motor drives through two reducers two wheels located on the same side of the bogie.
  • the two wheels on the same side are therefore linked in rotation but there is independence in rotation of the wheels of the right line of the bogie with the wheels of the left line.
  • the motor drives via a shaft of universal joint type a bevel gear housed in a reduction gear placed near one of the two wheels. Conical couple the movement is sent to one of the wheels directly by a flat gear train and on the second wheel by a second plane gear train identical to the previous one but through a connecting shaft located sufficiently low to allow a vehicle floor, for example at 350 mm above the rail level.
  • the axle motor drives a double gear train.
  • the engine drives a first stage from which the movement is distributed, via a second stage, directly on the wheel on the motor side and via a shaft transmission (passing under the lower part of the floor of body, for example 350mm) on the wheel opposite side engine.
  • the two axles are connected to each other by two spars, one of the ends of each of which is rigidly attached to one of the axles and the other end is attached to the other axle via a elastic joint whose role is to allow the bogie to absorb the track lefts.
  • Figures 5 to 8 show an axle according to the invention in a configuration with one axle motor.
  • Table 1 shows the different configurations possible provided by the axle according to the invention.
  • Table 2 shows the different configurations possible bogies created from two axles according to the invention.
  • the body Cv of the vehicle rests on the beam of the gantry-shaped bridge Pr, by means of the secondary suspensions Sp 1 and Sp 2 placed between the wheels vertical to the axle.
  • the beam of the bridge Pr receives bearings around which rotate the two wheel hubs Mo 1 and Mo 2 which carry the wheels Ro 1 and Ro 2 , as well as the brake discs.
  • a brake caliper And, hung on the bridge beam by the horns Cr1 and Cr2, covers the disc Di1.
  • the wheels Ro 1 and Ro 2 are not locked but bolted to the wheel hubs.
  • the wheels are therefore easily removable to be reprofiled without the need for a pit turn.
  • a second modularity of the axle according to the invention resides in that the interfaces for fixing the stops transverse, chassis beam and articulation of chassis on the bridge beam are identical so be able to place these organs indifferently according to the desired configuration: this allows in particular changing the length of the chassis beams that connect both axles to provide a short wheelbase bogie, medium or long.
  • the beam of the bridge is provided with a fixing range of low drive rod Bb and two fixing ranges high drive rods Bh1 and Bh2, these two rods high drive being mounted for example if the axle according to the invention is used as an axle alone.
  • a connecting shaft Ar can be mounted on the same axis of rotation as that of the pinions Pi 1 and Pi 2 so as to link in rotation the two wheels of the axle.
  • a third modularity of the axle according to the invention then lies in that the two wheels of the axle can be independent or linked in rotation according to the absence or the presence of the connecting shaft.
  • the first reduction stage of the kinematic chain consists of a pinion Pj, wedged on the motor shaft, intermediate toothed wheels Ri and Rj, and the wheel toothed Rk mounted on the same shaft as the pinions Pi.
  • the assembly which constitutes the first reduction stage is mounted in an independent mechanical housing Ca bolted to the beam of the Pr bridge.
  • the traction motor Mt is flanged on this Ca housing.
  • a fifth modularity of the axle according to the invention then resides in that the carrying axle is convertible into drive axle by adding components, and the drive axle convertible into a carrying axle by removing organs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Vehicle Body Suspensions (AREA)
  • Handcart (AREA)

Abstract

The axle or pair of axles, forming a bogie, is designed to fit a vehicle with an integrated floor. The axle, or at least one of the pair of axles, is formed from a carrying beam, which carries out the function of supporting the load and of driving the wheels. The carrying beam contains at least part of the elements, which ensure the transmission of movement, between the motor and the wheels.

Description

La présente invention concerne un essieu ou couple d'essieux formant bogie destiné à équiper un véhicule du type à "plancher bas" intégral.The present invention relates to an axle or torque bogie axles intended to equip a vehicle of the full "low floor" type.

Par véhicule à plancher bas intégral il faut comprendre un véhicule pour lequel le plancher pour passagers ne présente pas de marche pour l'accès au véhicule.By vehicle with full low floor it is necessary include a vehicle for which the floor for passengers do not have a step to access the vehicle.

Dans un tel véhicule à plancher bas intégral, le plancher pour passagers se situe, typiquement, à environ 350 mm au dessus du niveau du rail.In such a low-floor vehicle, the passenger floor is typically about 350 mm above the rail level.

Le véhicule à plancher bas est par exemple un véhicule ferroviaire du type tramway.The low-floor vehicle is for example a vehicle tram type railroad.

Les véhicules à plancher bas de l'art antérieur utilisent principalement les architectures de bogies moteurs suivantes:

  • le bogie quadrimoteur (un moteur par roue),
  • le bogie bimoteur à un moteur par file de rail et non par essieu,
  • le bogie mixte à un essieu moteur et un essieu porteur, dont l'essieu moteur est entraíné par un seul moteur placé à l'extérieur du bogie.
The low-floor vehicles of the prior art mainly use the following engine bogie architectures:
  • the four-engine bogie (one motor per wheel),
  • the twin-engine bogie with one motor per line of rail and not per axle,
  • the bogie mixed with a driving axle and a carrying axle, whose driving axle is driven by a single motor placed outside the bogie.

La première architecture a comme avantage, grâce à la présence d'un moteur par roue, d'avoir des roues indépendantes en rotation qui facilitent l'inscription en courbe du bogie.The first architecture has the advantage, thanks to the presence of one motor per wheel, to have wheels independent in rotation which facilitate registration in bogie curve.

La première architecture présente l'inconvénient majeur de générer un coût élevé de la fonction motorisation (équipement électrique de traction-freinage, moteurs, réducteurs).The first architecture has the disadvantage major to generate a high cost of the motorization function (electric traction-braking equipment, motors, reducers).

La première architecture présente également l'inconvénient de ne pas permettre de bénéficier du principe d'auto stabilisation mécanique de l'essieu ferroviaire apportée par la conicité des tables de roulement des roues calées sur un même arbre. The first architecture also presents the disadvantage of not allowing to benefit from the principle mechanical self-stabilization of the railway axle brought by the taper of the wheel treads wedged on the same tree.

La deuxième architecture a pour inconvénient majeur un encombrement longitudinal général d'essieu trop important pour permettre d'obtenir un véhicule à plancher bas intégral.The second architecture has the major drawback of too large overall longitudinal axle dimensions to obtain a low-floor vehicle integral.

En d'autres termes, la deuxième architecture présente l'inconvénient de ne pas permettre de positionner, dans la caisse et au droit du bogie, typiquement seize sièges dans le sens de la marche, du fait de la disposition longitudinale des moteurs au dessus des rails.In other words, the second architecture presents the disadvantage of not allowing positioning, in the body and to the right of the bogie, typically sixteen seats in the direction of travel, due to the arrangement longitudinal of the motors above the rails.

La deuxième architecture présente également l'inconvénient de ne pas permettre non plus de bénéficier du principe d'auto stabilisation mécanique de l'essieu ferroviaire apportée par la conicité des tables de roulement des roues calées sur un même arbre.The second architecture also presents the disadvantage of not allowing either to benefit from the principle of mechanical self-stabilization of the axle railway brought by the conicity of the tread tables wheels wedged on the same tree.

La troisième architecture présente l'inconvénient de ne pas permettre de disposer, dans la caisse et aux quatre coins du bogie, des portes d'accès, du fait de la disposition du moteur à l'extérieur du bogie et donc sous la caisse.The third architecture has the disadvantage of do not allow to have, in the box and the four corners of the bogie, access doors, due to the arrangement of the motor outside the bogie and therefore under the checkout.

La troisième architecture présente également l'inconvénient de ne pas permettre de réaliser un bogie intégralement moteur du fait qu'il est nécessaire d'implanter au minimum deux portes d'accès dans la caisse à proximité du bogie.The third architecture also presents the disadvantage of not allowing a bogie to be produced fully motorized because it is necessary install at least two access doors in the cash box near the bogie.

En générale, le dispositif de transmission du mouvement du moteur aux roues par essieu tournant est placé trop haut pour permettre l'obtention d'un véhicule à plancher bas.In general, the transmission device of the movement of the motor to the wheels by rotating axle is placed too high to allow a vehicle to be obtained low floor.

Aussi un but de l'invention est-il un essieu ou couple d'essieux formant bogie destiné à équiper un véhicule du type à plancher bas intégral, ne présentant pas les inconvénients des essieux ou des couples d'essieux formant bogie de l'art antérieur et présentant un encombrement longitudinal général d'essieu réduit pour permettre d'obtenir un véhicule à plancher bas intégral. Also an object of the invention is an axle or torque bogie axles intended to equip a vehicle of the type with low integral floor, not having the disadvantages of axles or axle pairs forming bogie of the prior art and having a space requirement general longitudinal reduction of axle to allow to obtain a vehicle with a full low floor.

L'essieu ou le couple d'essieux formant bogie destiné à équiper un véhicule du type à plancher bas intégral est tel que caractérisé ci-après.The bogie axle or pair of axles intended to equip a vehicle of the type with full low floor is as characterized below.

Un avantage de l'essieu de l'invention est d'obtenir un essieu modulaire, motorisé ou non, dont l'association par paire crée une gamme de bogies qui permet:

  • de positionner en caisse au droit du bogie, typiquement seize sièges dans le sens de la marche,
  • de s'adapter à différentes solutions de motorisation, à savoir:
    • un moteur par roue, le bogie étant alors du type quadrimoteur,
    • un moteur par essieu, le bogie étant alors du type bimoteur, avec localisation des deux moteurs à droite ou à gauche ou suivant les diagonales du bogie,
    • un bogie avec un essieu moteur, issu du bogie de type quadrimoteur (à un moteur par roue) ou issu du bogie de type bimoteur (à un moteur par essieu), et un essieu porteur,
  • de bénéficier soit du principe d'auto stabilisation mécanique de l'essieu ferroviaire apportée par la conicité des tables de roulement des roues liées à un même arbre, soit de roues indépendantes en rotation,
  • de s'adapter à différentes configurations d'empattement de bogie,
  • d'assurer une importante synergie entre le bogie moteur et le bogie porteur associé,
  • d'assurer une bonne accessibilité aux pièces d'usure (bandage de roue élastique, disque de frein, ....)
  • de se dispenser de l'équipement de tour en fosse habituellement nécessaire à l'opération de reprofilage des roues.
An advantage of the axle of the invention is to obtain a modular axle, motorized or not, the association of which in pairs creates a range of bogies which allows:
  • to position the body at the bogie right, typically sixteen seats in the direction of travel,
  • to adapt to different motorization solutions, namely:
    • one motor per wheel, the bogie then being of the four-engine type,
    • one motor per axle, the bogie then being of the twin-engine type, with location of the two motors to the right or to the left or along the diagonals of the bogie,
    • a bogie with a driving axle, coming from the bogie of the four-engine type (with one engine per wheel) or coming from the bogie of the twin-engine type (with one engine per axle), and a carrying axle,
  • to benefit either from the principle of mechanical self-stabilization of the railway axle brought by the taper of the wheel treads linked to the same shaft, or from independent wheels in rotation,
  • adapt to different bogie wheelbase configurations,
  • ensure a significant synergy between the driving bogie and the associated carrying bogie,
  • ensure good accessibility to wearing parts (elastic wheel bandage, brake disc, etc.)
  • to dispense with pit lathe equipment usually necessary for the reprofiling operation of the wheels.

D'autres buts, caractéristiques et avantages de l'invention apparaítront à la lecture de la description de bogies motorisés de l'art antérieur et du mode de réalisation préféré d'un essieu ou couple d'essieux formant bogie destiné à équiper un véhicule du type à plancher bas selon l'invention, description faite en liaison avec les dessins dans lesquels:

  • la figure 1 est une vue schématique d'un bogie motorisé de l'art antérieur de type quadrimoteur,
  • la figure 2 est une vue schématique d'un bogie motorisé de l'art antérieur de type bimoteur par file de rail,
  • la figure 3 représente schématiquement un bogie motorisé de l'art antérieur de type mixte à un essieu moteur et un essieu porteur, dont l'essieu moteur est entraíné par un seul moteur placé à l'extérieur du bogie.
  • la figure 4 est une vue schématique du bogie motorisé de type bimoteur, muni de deux essieux conformément à l'invention dans une configuration à un moteur par essieu,
  • les figures 5 à 8 représentent un essieu conforme à l'invention dans une configuration à un moteur par essieu.
Other objects, characteristics and advantages of the invention will appear on reading the description of motorized bogies of the prior art and of the preferred embodiment of an axle or pair of axles forming a bogie intended to equip a vehicle of the low floor type according to the invention, description made in conjunction with the drawings in which:
  • FIG. 1 is a schematic view of a motorized bogie of the prior art of the four-engine type,
  • FIG. 2 is a schematic view of a motorized bogie of the prior art of the twin-engine type by rail file,
  • Figure 3 schematically shows a motorized bogie of the prior art of the mixed type with a driving axle and a carrying axle, the driving axle of which is driven by a single motor placed outside the bogie.
  • FIG. 4 is a schematic view of the motorized bogie of twin-engine type, provided with two axles according to the invention in a configuration with one motor per axle,
  • Figures 5 to 8 show an axle according to the invention in a configuration with one motor per axle.

Dans le bogie motorisé de type quadrimoteur de l'art antérieur représenté à la figure 1, chaque roue est entraínée par un ensemble moto-réducteur accolé à la roue. Les quatre roues sont alors indépendantes en rotation.In the four-engine motorized bogie of art shown in Figure 1, each wheel is driven by a motor-reduction unit attached to the wheel. The four wheels are then independent in rotation.

Dans le bogie motorisé de type bimoteur par file de rail de l'art antérieur représenté à la figure 2, chaque moteur entraíne par l'intermédiaire de deux réducteurs les deux roues situées du même coté du bogie.In the twin-engine motorized bogie per line prior art rail shown in Figure 2, each motor drives through two reducers two wheels located on the same side of the bogie.

Les deux roues situées du même côté sont donc liées en rotation mais il y a indépendance en rotation des roues de la file droite du bogie avec les roues de la file gauche.The two wheels on the same side are therefore linked in rotation but there is independence in rotation of the wheels of the right line of the bogie with the wheels of the left line.

Dans le bogie motorisé de type mixte de l'art antérieur à un essieu moteur et un essieu porteur, représenté à la figure 3, le moteur de l'essieu motorisé est placé hors du bogie, longitudinalement sous la caisse.In the motorized bogie of mixed type of art prior to a driving axle and a carrying axle, shown in Figure 3, the motor of the powered axle is placed outside the bogie, longitudinally under the body.

Le moteur entraíne par l'intermédiaire d'un arbre de type à cardans un couple conique logé dans un réducteur placé à proximité de l'une des deux roues. Du couple conique le mouvement est envoyé sur l'une des roues directement par un train d'engrenages plan et sur la deuxième roue par un deuxième train d'engrenages plan identique au précédent mais par l'intermédiaire d'un arbre de liaison situé suffisamment bas pour permettre un plancher du véhicule, par exemple à 350 mm au dessus du niveau du rail.The motor drives via a shaft of universal joint type a bevel gear housed in a reduction gear placed near one of the two wheels. Conical couple the movement is sent to one of the wheels directly by a flat gear train and on the second wheel by a second plane gear train identical to the previous one but through a connecting shaft located sufficiently low to allow a vehicle floor, for example at 350 mm above the rail level.

Dans le bogie motorisé de type bimoteur, muni de deux essieux selon l'invention dans une configuration à un moteur par essieu (figure 4), le moteur de l'essieu entraíne un double train d'engrenages.In the twin-engine motorized bogie, equipped with two axles according to the invention in a single engine configuration per axle (Figure 4), the axle motor drives a double gear train.

Le moteur entraíne un premier étage à partir duquel le mouvement est distribué, par l'intermédiaire d'un deuxième étage, directement sur la roue côté moteur et via un arbre de transmission (passant sous la partie basse du plancher de caisse, par exemple à 350mm) sur la roue côté opposé au moteur.The engine drives a first stage from which the movement is distributed, via a second stage, directly on the wheel on the motor side and via a shaft transmission (passing under the lower part of the floor of body, for example 350mm) on the wheel opposite side engine.

Les deux essieux sont reliés l'un à l'autre par deux longerons dont l'une des extrémités de chacun d'entre eux est fixée rigidement à l'un des essieux et l'autre extrémité est fixée à l'autre essieu par l'intermédiaire d'une articulation élastique dont le rôle est de permettre au bogie d'absorber les gauches de voie.The two axles are connected to each other by two spars, one of the ends of each of which is rigidly attached to one of the axles and the other end is attached to the other axle via a elastic joint whose role is to allow the bogie to absorb the track lefts.

Les figures 5 à 8 représentent un essieu conforme à l'invention dans une configuration à un moteur par essieu.Figures 5 to 8 show an axle according to the invention in a configuration with one axle motor.

Le tableau 1 montre les différentes configurations possibles procurées par l'essieu conforme à l'invention.Table 1 shows the different configurations possible provided by the axle according to the invention.

Le tableau 2 montre les différentes configurations possibles de bogies créées à partir de deux essieux selon l'invention.Table 2 shows the different configurations possible bogies created from two axles according to the invention.

Dans l'essieu selon l'invention, la caisse Cv du véhicule repose sur la poutre du pont en forme de portique Pr, par l'intermédiaire des suspensions secondaires Sp1 et Sp2 placées entre les roues à la verticale de l'essieu.In the axle according to the invention, the body Cv of the vehicle rests on the beam of the gantry-shaped bridge Pr, by means of the secondary suspensions Sp 1 and Sp 2 placed between the wheels vertical to the axle.

La poutre du pont Pr reçoit des roulements autour desquels tournent les deux moyeux de roues Mo1 et Mo2 qui portent les roues Ro1 et Ro2 , ainsi que les disques de frein. The beam of the bridge Pr receives bearings around which rotate the two wheel hubs Mo 1 and Mo 2 which carry the wheels Ro 1 and Ro 2 , as well as the brake discs.

Une première modularité de l'essieu selon l'invention réside alors en ce qu'il peut recevoir un à deux disques de frein Di1 et Di2 suivant les configurations et les besoins:

  • essieu à roues liées en rotation, un ou deux disques de frein par essieu suivant l'énergie à dissiper,
  • essieu à roues indépendantes en rotation, un disque de frein par roue.
A first modularity of the axle according to the invention then lies in that it can receive one or two brake disks Di 1 and Di 2 depending on the configurations and the needs:
  • axle with wheels linked in rotation, one or two brake discs per axle depending on the energy to be dissipated,
  • axle with independent rotating wheels, one brake disc per wheel.

Un étrier de freinage Et, accroché à la poutre du pont par les cornes Cr1 et Cr2, coiffe le disque Di1.A brake caliper And, hung on the bridge beam by the horns Cr1 and Cr2, covers the disc Di1.

Les roues Ro1 et Ro2 ne sont pas calées mais boulonnées aux moyeux de roues. Les roues sont donc de ce fait facilement déposables pour être reprofilées sans qu'il y ait besoin de tour en fosse.The wheels Ro 1 and Ro 2 are not locked but bolted to the wheel hubs. The wheels are therefore easily removable to be reprofiled without the need for a pit turn.

La poutre du pont est munie de part et d'autre de chaque appui de suspension secondaire de quatre plages de fixation qui peuvent recevoir, par pont:

  • quatre butées transversales si l'essieu selon l'invention est utilisé en essieu seul,
  • deux butées transversales Bt1 et Bt2 , un longeron de châssis Lc et une articulation de châssis Ac si l'essieu selon l'invention est utilisé par paire pour former un bogie articulé.
The bridge beam is provided on each side of each secondary suspension support with four fixing areas which can receive, by bridge:
  • four transverse stops if the axle according to the invention is used as an axle alone,
  • two transverse stops Bt 1 and Bt 2 , a chassis beam Lc and a chassis joint Ac if the axle according to the invention is used in pairs to form an articulated bogie.

Une deuxième modularité de l'essieu selon l'invention réside alors en ce que les interfaces de fixation des butées transversales, longeron de châssis et articulation de châssis sur la poutre du pont sont identiques de façon à pouvoir placer ces organes indifféremment suivant la configuration souhaitée: ceci permet en particulier en modifiant la longueur des longerons de châssis qui relient les deux essieux de procurer un bogie à empattement court, moyen ou long.A second modularity of the axle according to the invention then resides in that the interfaces for fixing the stops transverse, chassis beam and articulation of chassis on the bridge beam are identical so be able to place these organs indifferently according to the desired configuration: this allows in particular changing the length of the chassis beams that connect both axles to provide a short wheelbase bogie, medium or long.

La poutre du pont est munie d'une plage de fixation de bielle d'entraínement basse Bb et deux plages de fixation de bielles d'entraínement hautes Bh1 et Bh2, ces deux bielles d'entraínement hautes étant montées par exemple si l'essieu selon l'invention est utilisé en essieu seul. The beam of the bridge is provided with a fixing range of low drive rod Bb and two fixing ranges high drive rods Bh1 and Bh2, these two rods high drive being mounted for example if the axle according to the invention is used as an axle alone.

Sur les moyeux de roue Mo1 et Mo2 sont calées les couronnes dentées Co1 et Co2 qui, associées aux pignons Pi1 et Pi2 forment le deuxième étage de réduction de la chaíne cinématique. Un arbre de liaison Ar peut être monté sur le même axe de rotation que celui des pignons Pi1 et Pi2 de façon à lier en rotation les deux roues de l'essieu.On the wheel hubs Mo 1 and Mo 2 are fixed the gear rings Co 1 and Co 2 which, associated with the pinions Pi 1 and Pi 2 form the second reduction stage of the kinematic chain. A connecting shaft Ar can be mounted on the same axis of rotation as that of the pinions Pi 1 and Pi 2 so as to link in rotation the two wheels of the axle.

Une troisième modularité de l'essieu selon l'invention réside alors en ce que les deux roues de l'essieu peuvent être indépendantes ou liées en rotation suivant l'absence ou la présence de l'arbre de liaison.A third modularity of the axle according to the invention then lies in that the two wheels of the axle can be independent or linked in rotation according to the absence or the presence of the connecting shaft.

Le premier étage de réduction de la chaíne cinématique est constitué d'un pignon Pj, calé sur l'arbre du moteur, des roues intermédiaires dentées Ri et Rj, et de la roue dentée Rk montée sur le même arbre que les pignons Pi. L'ensemble que constitue le premier étage de réduction est monté dans un carter de mécanique indépendant Ca boulonné à la poutre du pont Pr. Le moteur de traction Mt est flasqué sur ce carter Ca.The first reduction stage of the kinematic chain consists of a pinion Pj, wedged on the motor shaft, intermediate toothed wheels Ri and Rj, and the wheel toothed Rk mounted on the same shaft as the pinions Pi. The assembly which constitutes the first reduction stage is mounted in an independent mechanical housing Ca bolted to the beam of the Pr bridge. The traction motor Mt is flanged on this Ca housing.

Une quatrième modularité de l'essieu selon l'invention réside alors en ce que le carter de mécanique Ca et le moteur Mt peuvent être placés indifféremment de l'un ou l'autre des côtés de l'essieu, ou simultanément des deux côtés permettant ainsi les trois configurations de motorisation suivante:

  • un ensemble carter de mécanique Ca et moteur Mt par essieu associé avec un arbre de transmission Ar liant ainsi les deux roues en rotation,
  • un ensemble carter de mécanique Ca et moteur Mt par côté sans arbre de transmission Ar rendant ainsi les deux roues indépendantes en rotation,
  • un ensemble carter de mécanique Ca et moteur Mt par côté associé avec un arbre de transmission Ar liant les deux roues en rotation (solution où le moteur est physiquement réparti).
A fourth modularity of the axle according to the invention then resides in that the mechanical housing Ca and the motor Mt can be placed either on one or the other of the sides of the axle, or simultaneously on both sides allowing thus the following three engine configurations:
  • an assembly of mechanical housing Ca and motor Mt per axle associated with a transmission shaft Ar thus linking the two wheels in rotation,
  • a mechanical housing Ca and motor Mt assembly on each side without Ar drive shaft thus making the two independent wheels in rotation,
  • a mechanical housing Ca and motor assembly Mt per side associated with a Ar transmission shaft connecting the two rotating wheels (solution where the engine is physically distributed).

La non installation dans l'essieu du moteur Mt, de l'ensemble des engrenages implanté dans le carter de mécanique Ca et la poutre du pont Pr, permet de décliner le bogie moteur en un bogie porteur ce avec une très forte synergie.The non-installation in the axle of the Mt motor, the set of gears installed in the housing mechanical Ca and the beam of the Pr bridge, allows to decline the motor bogie in a load-bearing bogie with very strong synergy.

Une cinquième modularité de l'essieu selon l'invention réside alors en ce que l'essieu porteur est transformable en essieu moteur par ajout d'organes, et l'essieu moteur transformable en essieu porteur, par suppression d'organes.A fifth modularity of the axle according to the invention then resides in that the carrying axle is convertible into drive axle by adding components, and the drive axle convertible into a carrying axle by removing organs.

Claims (11)

Essieu ou couple d'essieux formant bogie destiné à équiper un véhicule du type à plancher bas intégral, caractérisé en ce que ledit essieu ou au moins l'un desdits essieux est constitué d'une poutre porteuse assurant simultanément les fonctions de support de la charge, d'entraínement de l'essieu, de liaison en rotation des roues et de transmission du couple moteur, ladite poutre porteuse contenant au moins une partie des organes assurant la transmission du mouvement entre au moins un moteur et lesdites roues dudit essieu, ledit ou lesdits moteurs étant disposés parallèlement audit essieu.Axle or pair of axles forming a bogie intended for equip a vehicle of the type with full low floor, characterized in that said axle or at least one of said axles consists of a supporting beam simultaneously supporting the support functions of the load, axle drive, link in wheel rotation and torque transmission motor, said supporting beam containing at least one part of the organs ensuring the transmission of movement between at least one motor and said wheels of said axle, said motor or motors being arranged parallel to said axle. Essieu ou couple d'essieux formant bogie selon la revendication 1, dans lequel ledit ou lesdits moteurs de l'essieu entraínent un double train d'engrenages.Axle or pair of axles forming bogie depending on the claim 1, wherein said engine (s) from the axle drive a double gear train. Essieu ou couple d'essieux formant bogie selon l'une quelconque des revendications 1 ou 2, dans lequel ledit ou lesdits moteurs entraínent un premier étage à partir duquel le mouvement est distribué, par l'intermédiaire d'un deuxième étage, directement sur la roue côté moteur et via un arbre de transmission sur la roue côté opposé au moteur.Axle or pair of axles forming a bogie according to one any of claims 1 or 2, wherein said motor or motors drive a first stage at from which the movement is distributed, by via a second floor, directly on the wheel on the engine side and via a drive shaft on the wheel opposite the engine. Essieu ou couple d'essieux formant bogie selon l'une quelconque des revendications 1 à 3, dans lequel lesdits essieux sont reliés l'un à l'autre par deux longerons dont l'une des extrémités de chacun d'entre eux est fixée rigidement à l'un des essieux et l'autre extrémité est fixée à l'autre essieu par l'intermédiaire d'une articulation élastique.Axle or pair of axles forming a bogie according to one any of claims 1 to 3, wherein said axles are connected to each other by two spars, one of the ends of each of which them is rigidly attached to one of the axles and the other end is fixed to the other axle by through an elastic joint. Essieu ou couple d'essieux formant bogie selon l'une quelconque des revendications 1 à 4, dans lequel au moins une desdites roues est équipée d'un ensemble disque-étrier de freinage. Axle or pair of axles forming a bogie according to one any of claims 1 to 4, wherein at at least one of said wheels is equipped with an assembly brake caliper disc. Couple d'essieux formant bogie selon l'une quelconque des revendications 1 à 5, l'un au moins desdits essieux étant un essieu moteur.Bogie axle pair according to any one claims 1 to 5, at least one of said axles being a driving axle. Couple d'essieux formant bogie selon l'une quelconque des revendications 1 à 5, l'un au moins desdits essieux étant un essieu porteur.Bogie axle pair according to any one claims 1 to 5, at least one of said axles being a carrying axle. Couple d'essieux formant bogie selon l'une quelconque des revendications 1 à 5, l'un desdits essieux étant un essieu moteur et l'autre essieu étant un essieu porteur.Bogie axle pair according to any one claims 1 to 5, one of said axles being one driving axle and the other axle being an axle carrier. Couple d'essieux formant bogie selon l'une quelconque des revendications 1 à 8, ledit bogie étant à empattement court, moyen ou long.Bogie axle pair according to any one claims 1 to 8, said bogie being short, medium or long wheelbase. Véhicule du type à plancher bas intégral comportant au moins un essieu ou couple d'essieux formant bogie selon l'une quelconque des revendications 1 à 9, ledit véhicule étant équipé de seize sièges positionnés en caisse au droit du bogie.Vehicle of the type with integral low floor comprising at minus one axle or pair of axles forming a bogie according to any one of claims 1 to 9, said vehicle being equipped with sixteen seats positioned in body to the right of the bogie. Véhicule du type à plancher bas intégral comportant au moins un essieu ou couple d'essieux formant bogie selon l'une quelconque des revendications 1 à 9, ledit véhicule étant équipé en caisse d'une porte d'accès à chaque coin du bogie.Vehicle of the type with integral low floor comprising at minus one axle or pair of axles forming a bogie according to any one of claims 1 to 9, said vehicle being equipped with an access door at the each corner of the bogie.
EP19980402637 1997-10-23 1998-10-23 Bogie with one or more axles for a low-floor vehicle Expired - Lifetime EP0911239B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9713290A FR2770190B1 (en) 1997-10-23 1997-10-23 BOGIE-FORMING AXLE OR TORQUE FOR RAILWAY VEHICLE WITH INTEGRAL LOW FLOOR
FR9713290 1997-10-23

Publications (2)

Publication Number Publication Date
EP0911239A1 true EP0911239A1 (en) 1999-04-28
EP0911239B1 EP0911239B1 (en) 2003-08-27

Family

ID=9512556

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980402637 Expired - Lifetime EP0911239B1 (en) 1997-10-23 1998-10-23 Bogie with one or more axles for a low-floor vehicle

Country Status (6)

Country Link
EP (1) EP0911239B1 (en)
DE (1) DE69817494T2 (en)
DK (1) DK0911239T3 (en)
ES (1) ES2206871T3 (en)
FR (1) FR2770190B1 (en)
PT (1) PT911239E (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001038154A1 (en) * 1999-11-26 2001-05-31 Gutehoffnungshütte Radsatz Gmbh Idler wheel axle for rail vehicles
FR2914609A1 (en) 2007-04-05 2008-10-10 Alstom Transport Sa BOGIE FOR RAILWAY VEHICLE
KR101155337B1 (en) * 2010-09-10 2012-06-19 한국철도기술연구원 wheel clutch for a low floor railway vehicle
WO2013120672A1 (en) * 2012-02-14 2013-08-22 Voith Patent Gmbh Rail wheel
RU2566594C2 (en) * 2014-03-12 2015-10-27 Акционерное общество "Уральский завод транспортного машиностроения" (АО "Уралтрансмаш") Railway vehicle drive bogie, mainly, of low-floor tram
FR3056180A1 (en) * 2016-09-20 2018-03-23 Alstom Transport Technologies OPTIMIZED BOGIE FOR A RAILWAY VEHICLE, IN PARTICULAR FOR TRAMWAY

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202008007471U1 (en) 2008-05-30 2008-12-11 Vecon Trading & Engineering Bogie with engine-gearbox-clutch unit
DE102017102138A1 (en) 2017-02-03 2018-08-09 Andreas Fiedler System for connecting a gearbox with a wheel set shaft and arrangement for a bogie for rail vehicles

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0318920A1 (en) * 1987-12-03 1989-06-07 Gec Alsthom Sa Bogie for rail vehicle with transmission through a mechanical differential gear
EP0428091A1 (en) * 1989-11-14 1991-05-22 Gec Alsthom Sa Driving device for independently rotating wheels of a railway vehicle with driving shaft
DE4419362A1 (en) * 1994-06-03 1995-12-07 Bergische Stahlindustrie Articulated carriage with low corridor, for inner city rail networks

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0318920A1 (en) * 1987-12-03 1989-06-07 Gec Alsthom Sa Bogie for rail vehicle with transmission through a mechanical differential gear
EP0428091A1 (en) * 1989-11-14 1991-05-22 Gec Alsthom Sa Driving device for independently rotating wheels of a railway vehicle with driving shaft
DE4419362A1 (en) * 1994-06-03 1995-12-07 Bergische Stahlindustrie Articulated carriage with low corridor, for inner city rail networks

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001038154A1 (en) * 1999-11-26 2001-05-31 Gutehoffnungshütte Radsatz Gmbh Idler wheel axle for rail vehicles
US6631936B2 (en) 1999-11-26 2003-10-14 Gutehoffnungshutte Radsatz Gmbh Idler wheel axle for rail vehicles
FR2914609A1 (en) 2007-04-05 2008-10-10 Alstom Transport Sa BOGIE FOR RAILWAY VEHICLE
US8371234B2 (en) 2007-04-05 2013-02-12 Alstom Transport Sa Bogie for railway vehicle
KR101155337B1 (en) * 2010-09-10 2012-06-19 한국철도기술연구원 wheel clutch for a low floor railway vehicle
WO2013120672A1 (en) * 2012-02-14 2013-08-22 Voith Patent Gmbh Rail wheel
RU2566594C2 (en) * 2014-03-12 2015-10-27 Акционерное общество "Уральский завод транспортного машиностроения" (АО "Уралтрансмаш") Railway vehicle drive bogie, mainly, of low-floor tram
FR3056180A1 (en) * 2016-09-20 2018-03-23 Alstom Transport Technologies OPTIMIZED BOGIE FOR A RAILWAY VEHICLE, IN PARTICULAR FOR TRAMWAY
EP3299659A1 (en) * 2016-09-20 2018-03-28 ALSTOM Transport Technologies An optimized bogie for a railway vehicle, in particular a tramway

Also Published As

Publication number Publication date
FR2770190B1 (en) 1999-12-31
PT911239E (en) 2004-01-30
DK0911239T3 (en) 2003-12-22
DE69817494D1 (en) 2003-10-02
DE69817494T2 (en) 2004-06-24
ES2206871T3 (en) 2004-05-16
FR2770190A1 (en) 1999-04-30
EP0911239B1 (en) 2003-08-27

Similar Documents

Publication Publication Date Title
EP1270359B1 (en) Motorized bogie for a low-floor railway vehicle
CA2683119C (en) Railway vehicle comprising pivoting end bogies
EP3159237B1 (en) Railway vehicle having at least a lowered bogie
EP0911239B1 (en) Bogie with one or more axles for a low-floor vehicle
EP3159236B2 (en) Railway vehicle having a lowered bogie
FR2720361A1 (en) Bogie for a railway vehicle.
EP1977949B1 (en) Bogie for rail vehicle
KR101527447B1 (en) Concrete rail grinding apparatus of an light electric railway
CA2216005C (en) Articulated rail truck frame and truck including such a frame
EP0364847B1 (en) Motor bogie for a railway vehicle with a low floor over its whole length
JP2004276730A (en) Truck for railway vehicle and low-floor vehicle using it
EP0556161A1 (en) Rolling device for railways
EP0428091B1 (en) Driving device for independently rotating wheels of a railway vehicle with driving shaft
EP3205545B1 (en) Double deck railway vehicle
EP3521125A1 (en) Bogie for rail vehicle
EP0136219A1 (en) Road-rail vehicle
EP1958845B1 (en) Railway carriage for passengers, and corresponding passenger transport train
FR2782678A1 (en) Axle for vehicle with lowered floor e.g. public transport vehicles, has drive transmission units located below floor, with crown wheel gear to transmit drive through to horizontal shafts driving through gears to wheels
FR3121651A1 (en) Railway vehicle motor bogie
EP0071575A1 (en) Rail vehicle
GB474328A (en) Improvements in locomotives of the type particularly adapted for underground haulage purposes
CH176796A (en) Wheel set with at least three axles.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE DE DK ES GB IT NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 19991028

AKX Designation fees paid

Free format text: BE DE DK ES GB IT NL PT SE

17Q First examination report despatched

Effective date: 20020531

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

RTI1 Title (correction)

Free format text: BOGIE WITH ONE OR MORE AXLES FOR A LOW-FLOOR VEHICLE

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): BE DE DK ES GB IT NL PT SE

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 69817494

Country of ref document: DE

Date of ref document: 20031002

Kind code of ref document: P

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: ALSTOM TRANSPORT S.A.

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20031220

NLT2 Nl: modifications (of names), taken from the european patent patent bulletin

Owner name: ALSTOM TRANSPORT S.A.

REG Reference to a national code

Ref country code: PT

Ref legal event code: PD4A

Free format text: ALSTOM TRANSPORT SA FR

Effective date: 20031127

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2206871

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20040528

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20091014

Year of fee payment: 12

Ref country code: DK

Payment date: 20091014

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20091016

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PT

Payment date: 20091013

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20091130

Year of fee payment: 12

BERE Be: lapsed

Owner name: S.A. *ALSTHOM TRANSPORT

Effective date: 20101031

REG Reference to a national code

Ref country code: PT

Ref legal event code: MM4A

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 20110426

REG Reference to a national code

Ref country code: NL

Ref legal event code: V1

Effective date: 20110501

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110426

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101031

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110501

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101024

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101031

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 69817494

Country of ref document: DE

Representative=s name: DREISS PATENTANWAELTE PARTG MBB, DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 69817494

Country of ref document: DE

Owner name: ALSTOM TRANSPORT TECHNOLOGIES, FR

Free format text: FORMER OWNER: GEC ALSTHOM TRANSPORT S.A., PARIS, FR

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20151119 AND 20151125

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 69817494

Country of ref document: DE

Representative=s name: DREISS PATENTANWAELTE PARTG MBB, DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 69817494

Country of ref document: DE

Owner name: ALSTOM TRANSPORT TECHNOLOGIES, FR

Free format text: FORMER OWNER: ALSTOM TRANSPORT TECHNOLOGIES, LEVALLOIS-PERRET, FR

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20171019

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20171023

Year of fee payment: 20

Ref country code: GB

Payment date: 20171019

Year of fee payment: 20

Ref country code: ES

Payment date: 20171121

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 69817494

Country of ref document: DE

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20181022

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20181022

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20200806

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20181024

REG Reference to a national code

Ref country code: ES

Ref legal event code: PC2A

Owner name: ALSTOM TRANSPORT TECHNOLOGIES

Effective date: 20210601