EP2308735A1 - Résistances de frein de refroidissement d'un véhicule relié à des rails - Google Patents

Résistances de frein de refroidissement d'un véhicule relié à des rails Download PDF

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Publication number
EP2308735A1
EP2308735A1 EP09012623A EP09012623A EP2308735A1 EP 2308735 A1 EP2308735 A1 EP 2308735A1 EP 09012623 A EP09012623 A EP 09012623A EP 09012623 A EP09012623 A EP 09012623A EP 2308735 A1 EP2308735 A1 EP 2308735A1
Authority
EP
European Patent Office
Prior art keywords
fan
braking resistors
air
braking
arrangement
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
EP09012623A
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German (de)
English (en)
Other versions
EP2308735B1 (fr
Inventor
Alexander Orellano
Erik Wik
Benoit Gachet
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 Transportation Germany GmbH
Original Assignee
Bombardier Transportation GmbH
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Filing date
Publication date
Application filed by Bombardier Transportation GmbH filed Critical Bombardier Transportation GmbH
Priority to PL09012623T priority Critical patent/PL2308735T3/pl
Priority to EP09012623.6A priority patent/EP2308735B1/fr
Publication of EP2308735A1 publication Critical patent/EP2308735A1/fr
Application granted granted Critical
Publication of EP2308735B1 publication Critical patent/EP2308735B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61C—LOCOMOTIVES; MOTOR RAILCARS
    • B61C5/00—Locomotives or motor railcars with IC engines or gas turbines
    • B61C5/02—Arrangement or disposition of intakes and apparatus for supplying, circulating, and filtering air for combustion and engine-cooling purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61C—LOCOMOTIVES; MOTOR RAILCARS
    • B61C17/00—Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
    • B61C17/04—Arrangement or disposition of driving cabins, footplates or engine rooms; Ventilation thereof

Definitions

  • the invention relates to an arrangement for cooling braking resistors by ventilating air, wherein the braking resistors are adapted to dissipate electric energy caused by braking a track bound vehicle, in particular a rail vehicle, into heat.
  • the invention also relates to a method of cooling braking resistors of a track bound vehicle.
  • the invention relates to a track bound vehicle comprising the arrangement.
  • the invention relates to a method of manufacturing a cooling arrangement for cooling braking resistors by ventilating air.
  • US 4,840,221 describes a device for ventilating braking rheostats in a locomotive which is powered electrically, by means of an internal combustion engine, or by a combination thereof.
  • the rheostats are disposed in a layer close to the locomotive roof.
  • the device includes at least on tangential fan having a horizontal axis which extends longitudinally relative to the locomotive and blowing air towards said rheostats.
  • the device further includes air intake openings located in the side faces of the locomotive.
  • Such a distributed propulsion system usually comprises power converters at different locutions of the train, including at locations of the train where passengers or goods should be transported. Especially in high speed trains, i.e. trains travelling at velocities higher than 250 km/h, such distributed propulsion systems are widely used.
  • the power converters are adapted to provide electric propulsion motors with electric energy and, during braking, the power converters may produce electric energy by so-called dynamic braking which - at least under specific circumstances - cannot be fed back to the power network.
  • the braking resistors for dissipating this electric energy should be placed in the vicinity of the power converter.
  • braking resistors may be placed in a row one after another within the roof section of a vehicle, in particular a train, such as a high speed train. Cooling air for cooling this row of braking resistors may be ventilated by a so-called axial fan.
  • An axial fan accelerates air incoming along its rotational axis without significant deflection of the flow direction.
  • the cooling of a row of consecutive braking resistors has disadvantages.
  • the last braking resistors in the row are not cooled as effectively as the first resistor in the row, since already heated air from the first resistors is used to cool the last resistors in the row.
  • the row extends in the direction of travel within the roof section of a train, the arrangement including the fan and the conducts for conducting the incoming and outgoing air requires a comparatively long section of the train.
  • the pressure loss caused by conducting the cooling air along the braking resistors is comparatively high. Therefore, the electric energy needed to operate the fan is not efficiently used.
  • the comparatively high outlet temperature of the cooling air at the end of the row may be critical for safety reasons.
  • Damages and injuries within the surrounding of the vehicle may be caused by the high temperature. Also, the noise production of an axial fan and of the ventilated air which passes the braking resistors to be cooled is high. If the rotational speed of the fan shall be reduced, it can be considered to increase the diameter of the fan. However, large diameters are not possible within the roof section of high speed trains.
  • High speed trains require maximum braking power at high speeds, since the kinetic energy is proportional to the square of the velocity. This means that especially high speed trains need highly effective cooling arrangements for their braking resistors, but the available space is small compared to other types of trains, since high speed trains have small aerodynamic resistance and, therefore, little space in the roof section.
  • a radial fan is used to ventilate air for cooling a plurality of braking resistors.
  • centrifugal fan is a fan which is provided with gas, in particular air, in the direction of the rotating axis of the fan. This incoming air is sucked by the fan to the interior of the circular arrangement of the fan blades.
  • gas in particular air
  • ribs other means for accelerating the gas or air can alternatively be used by the fan, for example ribs.
  • the radial or centrifugal fan deflects the air in the interior of the circular arrangement in radial direction, wherein the velocity of the deflected gas or air has - in most cases - also a tangential component.
  • “Radial” is referred to the rotational axis of the fan.
  • Centrifugal fans are widely known to be operated within a so-called squirrel cage.
  • a squirrel cage is not necessarily required for the present invention. Rather, it is intended that the radial fan accelerates the incoming air in different directions, namely different radial direction.
  • the flow-density of the ventilated air becomes significantly smaller than the flow-density of the incoming air which is sucked by the fan to the interior.
  • One advantage of this is that the noise production caused by the air when it passes the braking resistors is small.
  • many braking resistors which are arranged in the surrounding of the radial fan can be cooled. If a squirrel cage is used at all, it has several openings for passing the deflected air in different radial directions. However, it is preferred that no squirrel cage is used, but that the area between the fan and the surrounding in radial directions is open, i.e. not blocked by walls extending in the circumferential direction.
  • the rotating axis of the fan extends from top to bottom, or vice versa.
  • the roof section of high speed trains comprises sufficient space to accommodate the arrangement.
  • a radial fan comprises an interior region where the cool air is sucked into. Therefore, a suction conduct can be defined which conducts the air into and/or within this region.
  • the conduct can be formed by the fan itself and/or by additional parts above the fan.
  • a conduct within the region may be shaped to support redirection of the air flow from a vertical direction to horizontal directions.
  • the plurality of braking resistors are located on opposite sides of the fan.
  • the plurality of braking resistors are located around the periphery of the fan. Therefore, many braking resistors can be cooled by air from the same fan.
  • a further radial fan or more than one additional radial fan can be used.
  • the braking resistors to be cooled by the respective fan are arranged at least on opposite sides of the fan or around the periphery of the fan, wherein the braking resistors are located exactly or nearly at the same height level as the fan.
  • braking resistors Any standard form of braking resistors can be used.
  • metal sheets having cut outs for passing the cooling air can be used.
  • the braking resistors comprise fins or other protruding parts in order to increase the surface area where the cooling air can pass.
  • a suction conduct may extend above the fan and conducts the incoming air to the interior of the fan. It is possible, but not necessarily required, that the conduct comprises a canal having walls, for example a tube or hose. However, the conduct can alternatively be realized by other parts of the vehicle, such as parts of the roof and fixing parts for fixing the braking resistors and/or the fan.
  • Outlet opening for passing heated air from the plurality of braking resistors may be arranged on opposite sides of the vehicle, in particular on opposite sides of the roof of the vehicle.
  • This embodiment especially applies to high speed trains where the maximum cooling power is required in the range of high velocities.
  • the heated air which exits the vehicle on the opposite sides may be sucked again through the inlet opening in the roof of the vehicle into the fan. On the other hand, this cannot happen when the vehicle is driving with high velocities.
  • cooling braking resistors not only the arrangement for cooling braking resistors and the vehicle comprising this arrangement belong to the invention, but also a method of cooling braking resistors of a track bound vehicle and a method of manufacturing the cooling arrangement.
  • a method of cooling braking resistors of a track bound vehicle is proposed, in particular of a rail vehicle, wherein
  • a method of manufacturing a cooling arrangement for cooling braking resistors by ventilating air, wherein the braking resistors are adapted to dissipate electric energy caused by braking a track bound vehicle, in particular a rail vehicle, into heat, wherein the following is provided:
  • the roof sections 1 shown in Fig. 1 has a front end 21 a and a back end 21 b.
  • the cover 3 of the roof section 1 is extending downwards at the opposite side of a radial fan 7 which is placed in the centre of the roof section 1.
  • openings 5a, 5b in form of rectangular cutouts are provided to enable air to pass through.
  • the opening 5a, 5b may by provided - other than shown in Fig. 1 - with a mesh or other inserts, so that the air may pass, but intrusion of bigger parts is avoided.
  • the radial fan comprises an axis of rotation (not shown in Fig. 1 ) which extends in vertical direction, e.g. from top to bottom in Fig. 1 .
  • the axis of rotation is also an axis of rotational symmetry of the radial fan and - in this specific embodiment - of the arrangement of braking resistors 9 which are arranged around the periphery of the radial fan 7.
  • the radial fan 7 comprises a plurality of blades 11 which cause - while the fan 7 is rotating about the axis of rotation - an airflow in radial direction to the axis of rotation.
  • the air is sucked from above the fan 7 through an opening 22 in the cover 3 (which is also symmetric to the axis of rotation in this specific embodiment).
  • the air from above the fan 7 is passing the opening 22 and is entering the inner region of the fan 7. This process can be viewed best in the cross section of Fig. 3 .
  • the inner region is denoted by reference number 10.
  • the air flow is indicated by arrows.
  • Fig. 1 and Fig. 2 there is a body 8 in the inner region 10 which has a curved surface area at the circumference of the body 8. This curved surface area supports deflection of the air from the above the fan 7 into the radial direction.
  • the deflected air passes the blades 11 towards the braking resistors 9. Therefore, the braking resistors 9 are cooled by passing air.
  • the air flow continues towards the openings 5a, 5b in the downwardly extending section of the cover 3 and exits the roof section 1 through the openings 5a, 5b.
  • the body 8 in the inner region 10 of fan 7 is partly broken away in Fig. 3 .
  • Figs. 4 and 5 show another roof section having two radial fans which are arranged one after the other in the longitudinal direction of the section.
  • the longitudinal direction is the direction in which the vehicle travels.
  • the outlet openings 15a, 15b of the roof sections of Figs. 4 and 5 are longer in longitudinal direction than the openings 5a, 5b of the roof section of Figs. 1 to 3 . Therefore, the air which is deflected by the radial fan 17a, 17b in radial direction can leave the roof section within the shortest possible distance.
  • the outlet openings 15a, 15b may be shorter in other embodiments or may be divided in two or more separate openings.
  • each inlet opening 22a, 22b is directly located above the respective radial fan 17a, 17b and is - in this specific embodiment - rotationally symmetric to the axis of rotation of fan 17a, 17b.
  • the inlet openings 22a, 22b are formed as cutouts of the cover 23 of the roof section.
  • the braking resistors to be cooled are not shown in Figs. 4 and 5 . They can be arranged, similarly to Fig. 1 to 3 , around the periphery of the radial fan 17a, 17b and/or they can be arranged in two groups on both sides of the radial fans 17a, 17b. Such groups may be arranged similarly to the arrangements of braking resistors shown in Figs. 6 and 7 . However, Figs. 6 and 7 are referred to a single-fan roof section.
  • Fig. 6 shows the same arrangement as shown in Figs. 1 to 3 with the exception of the arrangement of the braking resistors to be cooled,
  • the braking resistors 9 are aligned in two rows extending in longitudinal direction between the radial fan 7 and the outlet opening 5b.
  • the same arrangement of braking air resistors is also placed on the opposite side of the radial fan 7 between the fan and the outlet opening 5a. This second group of braking resistors is not shown in Fig. 6 .
  • Fig. 7 shows a similar arrangement as Fig. 6 but the row of braking resistors 19 differs from the two rows of braking resistors 9 according to Fig. 6 .
  • the braking resistors 19 are tilted and are directly placed under the outlet opening 5b.
  • the same or similar arrangement of braking resistors is placed near the outlet opening 5a on the opposite side of the fan 7. This second row of braking resistors is not shown in Fig. 7 .
  • braking resistors is used in the description of the Figures. The term covers different embodiments, in particular braking resistors with and without additional bodies for improving the heat transfer from the braking resistor to the cooling area.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Automation & Control Theory (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Braking Arrangements (AREA)
EP09012623.6A 2009-10-06 2009-10-06 Résistances de frein de refroidissement d'un véhicule relié à des rails Not-in-force EP2308735B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL09012623T PL2308735T3 (pl) 2009-10-06 2009-10-06 Chłodzenie oporników hamowania pojazdu związanego z torem
EP09012623.6A EP2308735B1 (fr) 2009-10-06 2009-10-06 Résistances de frein de refroidissement d'un véhicule relié à des rails

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09012623.6A EP2308735B1 (fr) 2009-10-06 2009-10-06 Résistances de frein de refroidissement d'un véhicule relié à des rails

Publications (2)

Publication Number Publication Date
EP2308735A1 true EP2308735A1 (fr) 2011-04-13
EP2308735B1 EP2308735B1 (fr) 2013-08-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP09012623.6A Not-in-force EP2308735B1 (fr) 2009-10-06 2009-10-06 Résistances de frein de refroidissement d'un véhicule relié à des rails

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EP (1) EP2308735B1 (fr)
PL (1) PL2308735T3 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014172120A1 (fr) * 2013-04-19 2014-10-23 Progress Rail Services Corporation Ensemble ventilateur de radiateur
EP2845781A1 (fr) * 2013-09-04 2015-03-11 Siemens Aktiengesellschaft Véhicule ferroviaire doté de boîtier de rhéostat de freinage
CN105109499A (zh) * 2015-09-11 2015-12-02 中国北车集团大连机车研究所有限公司 动力分散式内燃动车组用顶部安装水冷却装置
US20160089983A1 (en) * 2014-09-25 2016-03-31 Dayton-Phoenix Group, Inc. Braking Grid Cooling System
JP2016107983A (ja) * 2014-12-03 2016-06-20 アルストム トランスポート テクノロジーズ 鉄道車両要素用の冷却エアローリック装置及び対応する鉄道車両
CN106218649A (zh) * 2016-08-10 2016-12-14 株洲中车时代电气股份有限公司 一种用于低地板车的散热装置
EP3109120A1 (fr) * 2015-06-23 2016-12-28 ALSTOM Transport Technologies Coffre de traction d'un véhicule ferroviaire et véhicule ferroviaire associé
CN108223100A (zh) * 2017-12-29 2018-06-29 中车唐山机车车辆有限公司 顶置式内燃动力总成冷却系统
US10081250B2 (en) 2014-12-15 2018-09-25 Dayton-Phoenix Group, Inc. Cooling fan vane assembly for a resistor grid
EP3398826A1 (fr) * 2017-05-05 2018-11-07 ALSTOM Transport Technologies Système de refroidissement d'une chaine de traction pour un véhicule de transport, chaîne de traction et véhicule électrique de transport associés

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB248270A (en) * 1925-09-10 1926-03-04 Guido Fornaca A cooling system for the engines of motor vehicles
US4840221A (en) 1986-02-11 1989-06-20 Alsthom Device for ventilating rheostats and/or fluid radiators in a locomotive
EP0919705A2 (fr) * 1997-11-25 1999-06-02 Siemens Canada Limited Système de refroidissement avec un conduit et un ventilateur radial
US5931640A (en) * 1997-10-17 1999-08-03 Robert Bosch Corporation Oppositely skewed counter-rotating fans
EP2078655A1 (fr) * 2008-01-11 2009-07-15 Alstom Transport S.A. Ensemble de ventilation d'un appareillage de véhicule ferroviaire

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB248270A (en) * 1925-09-10 1926-03-04 Guido Fornaca A cooling system for the engines of motor vehicles
US4840221A (en) 1986-02-11 1989-06-20 Alsthom Device for ventilating rheostats and/or fluid radiators in a locomotive
US5931640A (en) * 1997-10-17 1999-08-03 Robert Bosch Corporation Oppositely skewed counter-rotating fans
EP0919705A2 (fr) * 1997-11-25 1999-06-02 Siemens Canada Limited Système de refroidissement avec un conduit et un ventilateur radial
EP2078655A1 (fr) * 2008-01-11 2009-07-15 Alstom Transport S.A. Ensemble de ventilation d'un appareillage de véhicule ferroviaire

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014172120A1 (fr) * 2013-04-19 2014-10-23 Progress Rail Services Corporation Ensemble ventilateur de radiateur
EP2845781A1 (fr) * 2013-09-04 2015-03-11 Siemens Aktiengesellschaft Véhicule ferroviaire doté de boîtier de rhéostat de freinage
US20160089983A1 (en) * 2014-09-25 2016-03-31 Dayton-Phoenix Group, Inc. Braking Grid Cooling System
US9815374B2 (en) 2014-09-25 2017-11-14 Dayton-Phoenix Group, Inc. Braking grid cooling system
JP2016107983A (ja) * 2014-12-03 2016-06-20 アルストム トランスポート テクノロジーズ 鉄道車両要素用の冷却エアローリック装置及び対応する鉄道車両
US10081250B2 (en) 2014-12-15 2018-09-25 Dayton-Phoenix Group, Inc. Cooling fan vane assembly for a resistor grid
EP3109120A1 (fr) * 2015-06-23 2016-12-28 ALSTOM Transport Technologies Coffre de traction d'un véhicule ferroviaire et véhicule ferroviaire associé
FR3037913A1 (fr) * 2015-06-23 2016-12-30 Alstom Transp Tech Coffre de traction d'un vehicule ferroviaire et vehicule ferroviaire associe
CN105109499A (zh) * 2015-09-11 2015-12-02 中国北车集团大连机车研究所有限公司 动力分散式内燃动车组用顶部安装水冷却装置
CN106218649A (zh) * 2016-08-10 2016-12-14 株洲中车时代电气股份有限公司 一种用于低地板车的散热装置
CN106218649B (zh) * 2016-08-10 2018-07-24 株洲中车时代电气股份有限公司 一种用于低地板车的散热装置
EP3398826A1 (fr) * 2017-05-05 2018-11-07 ALSTOM Transport Technologies Système de refroidissement d'une chaine de traction pour un véhicule de transport, chaîne de traction et véhicule électrique de transport associés
FR3065936A1 (fr) * 2017-05-05 2018-11-09 Alstom Transport Technologies Systeme de refroidissement d'une chaine de traction pour un vehicule de transport, chaine de traction et vehicule electrique de transport associes
CN108223100A (zh) * 2017-12-29 2018-06-29 中车唐山机车车辆有限公司 顶置式内燃动力总成冷却系统

Also Published As

Publication number Publication date
EP2308735B1 (fr) 2013-08-14
PL2308735T3 (pl) 2014-01-31

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