EP2308735B1 - Abkühlen von Bremswiderständen eines schienengebundenen Fahrzeugs - Google Patents
Abkühlen von Bremswiderständen eines schienengebundenen Fahrzeugs Download PDFInfo
- Publication number
- EP2308735B1 EP2308735B1 EP09012623.6A EP09012623A EP2308735B1 EP 2308735 B1 EP2308735 B1 EP 2308735B1 EP 09012623 A EP09012623 A EP 09012623A EP 2308735 B1 EP2308735 B1 EP 2308735B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fan
- vehicle
- braking resistors
- air
- braking
- 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.)
- Not-in-force
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Classifications
-
- 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 a track bound vehicle, in particular a rail vehicle, comprising an arrangement for cooling braking resistors of the vehicle by ventilating air, wherein the braking resistors are adapted to dissipate electric energy caused by braking the vehicle into heat.
- the invention also relates to a method of cooling braking resistors of a track bound vehicle.
- 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 locations 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 resistors 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 axiaf 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.
- GB 248,270 A describes a cooling system for the engines of motor vehicles. Ribbed water coolers bridging openings in the roof of the vehicle and a fan disposed below the same perform cooling. Air is sucked in through openings provided laterally in the roof and the air is expelled through the coolers.
- It is an object of the present invention to provide a track bound vehicle comprising an arrangement for cooling braking resistors by ventilating air, wherein the braking resistors are adapted to dissipate electric energy caused by braking the vehicle, wherein the arrangement can be located in the roof section of the car body of the vehicle, wherein the production of noise is small and wherein a plurality of braking resistors can effectively be cooled.
- 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 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 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 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.
- 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.
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)
Claims (9)
- Spurgebundenes Fahrzeug, insbesondere Schienenfahrzeug, das eine Anordnung zum Kühlen von Bremswiderständen (9; 19) durch Belüften mit Luft aufweist, wobei die Bremswiderstände (9; 19) ausgestaltet sind, elektrische Energie, die durch Bremsen des spurgebundenen Fahrzeugs verursacht wird, in Wärme zu dissipieren, wobei die Anordnung aufweist:- einen Lüfter (7; 17),- eine Mehrzahl von Bremswiderständen (9; 19), die zu kühlen sind,dadurch gekennzeichnet, dass- der Lüfter (7; 17) ein radialer Lüfter (7; 17) ist, der eingehende Luft ablenkt, die in die Richtung einer Drehachse des Lüfters (7; 17) strömt, und zwar in verschiedene radiale Richtungen quer zu der Drehachse des Lüfters (7; 17), wobei die Geschwindigkeit der abgelenkten Luft optional auch eine tangentiale Komponente hat,- die Mehrzahl von Bremswiderständen (9; 19) in zumindest einigen der verschiedenen radialen Richtungen angeordnet ist,- die Drehachse des Lüfters (7; 17) sich von oben nach unten erstreckt, oder umgekehrt, sodass während eines Betriebes der Anordnung die kühle Luft von oben nach unten zu dem Lüfter (7; 17) geführt wird und durch den Lüfter (7; 17) in Richtung der Mehrzahl von Bremswiderständen (9; 19) abgelenkt wird.
- Das Fahrzeug nach Anspruch 1, wobei die Mehrzahl von Bremswiderständen (9; 19) an entgegengesetzten Seiten des Lüfters (7; 17) angeordnet sind.
- Das Fahrzeug nach Anspruch 1 oder 2, wobei die Mehrzahl von Bremswiderständen (9; 19) um die Peripherie des Lüfter (7; 17) angeordnet ist.
- Das Fahrzeug nach einem der Ansprüche 1 bis 3, wobei eine Ansaug-Führung (10), die ausgestaltet ist, kühle Luft von der Umgebung des Fahrzeugs in den Lüfter (7; 17) zu führen, angeordnet ist, Luft von oberhalb des Lüfters (7; 17) zu führen.
- Das Fahrzeug nach Anspruch 4, wobei die Ansaugführung (10) durch den Lüfter (7; 17) gebildet ist.
- Das Fahrzeug nach einem der Ansprüche 1 bis 5, wobei die Ansaug-Führung (10) sich von einer Einlassöffnung in einem Dach (1) des Fahrzeugs in den Lüfter (7; 17) erstreckt.
- Das Fahrzeug nach dem vorhergehenden Anspruch, wobei Auslassöffnungen zum Passieren von erwärmter Luft von der Mehrzahl von Bremswiderständen (9; 19) an entgegengesetzten Seiten des Fahrzeugs angeordnet sind, insbesondere an entgegengesetzten Seiten des Dachs (13) des Fahrzeugs.
- Verfahren zum Kühlen von Bremswiderständen (9; 19) eines spurgebundenen Fahrzeugs, insbesondere eines Schienenfahrzeugs, wobei- kühle Luft, die in der Richtung einer Drehachse eines radialen Lüfters (7; 17) strömt, angesaugt wird, indem der radiale Lüfter (7; 17) betrieben wird, wobei die Drehachse des Lüfters (7; 17) sich von oben nach unten erstreckt, oder umgekehrt,- die kühle Luft von oberhalb des Lüfters (7; 17) in den Lüfter (7; 17) angesaugt wird und durch den Lüfter (7; 17) in verschiedene radiale Richtungen quer zu der Rotationsachse abgelenkt wird, wobei die Geschwindigkeit der abgelenkten Luft optional auch eine tangentiale Komponente hat,- es der abgelenkten Luft erlaubt wird, eine Mehrzahl von Bremswiderständen (9; 19), die in zumindest einigen der verschiedenen radialen Richtungen angeordnet sind, zu passieren, wodurch die Mehrzahl der Bremswiderstände (9; 19) gekühlt wird.
- Verfahren zum Herstellen eines spurgebundenen Fahrzeugs, insbesondere eines Schienenfahrzeugs, aufweisend eine Kühlanordnung zum Kühlen von Bremswiderständen (9; 19) durch Belüften mit Luft, wobei die Bremswiderstände (9; 19) ausgestaltet sind, elektrische Energie, die durch Bremsen des Fahrzeugs verursacht wird, in Wärme zu dissipieren, wobei das Folgende vorgesehen wird:- ein Lüfter (7; 17),- eine Mehrzahl von Bremswiderständen (9; 19), die zu kühlen sind,dadurch gekennzeichnet, dass- ein radialer Lüfter (7; 17) als der Lüfter (7; 17) vorgesehen wird und der Lüfter (7; 17) in dem Dachbereich des Fahrzeugs angeordnet wird, um eingehende Luft abzulenken, die in der Richtung einer Drehachse des radialen Lüfters (7; 17) strömt, und zwar in radiale Richtungen quer zu einer Drehachse des Lüfters (7; 17), wobei die Geschwindigkeit der abgelenkten Luft optional auch eine tangentiale Komponente hat,- die Mehrzahl von Bremswiderständen (9; 19) in dem Dachbereich des Fahrzeugs angeordnet wird, in zumindest einigen der verschiedenen radialen Richtungen,- die Drehachse des Lüfters (7; 17) sich von oben nach unten erstreckt, oder umgekehrt,sodass während eines Betriebes der Anordnung die kühle Luft von oben nach unten zu dem Lüfter (7; 17) angesaugt wird und durch den Lüfter (7; 17) in Richtung der Mehrzahl der Bremswiderstände (9; 19) abgelenkt wird.
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 (de) | 2009-10-06 | 2009-10-06 | Abkühlen von Bremswiderständen eines schienengebundenen Fahrzeugs |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09012623.6A EP2308735B1 (de) | 2009-10-06 | 2009-10-06 | Abkühlen von Bremswiderständen eines schienengebundenen Fahrzeugs |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2308735A1 EP2308735A1 (de) | 2011-04-13 |
EP2308735B1 true EP2308735B1 (de) | 2013-08-14 |
Family
ID=41794962
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09012623.6A Not-in-force EP2308735B1 (de) | 2009-10-06 | 2009-10-06 | Abkühlen von Bremswiderständen eines schienengebundenen Fahrzeugs |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2308735B1 (de) |
PL (1) | PL2308735T3 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140311715A1 (en) * | 2013-04-19 | 2014-10-23 | Progress Rail Services Corporation | Radiator fan assembly |
DE102013217628A1 (de) * | 2013-09-04 | 2015-03-05 | Siemens Aktiengesellschaft | Schienenfahrzeug mit Bremswiderstandsgehäuse |
US9815374B2 (en) * | 2014-09-25 | 2017-11-14 | Dayton-Phoenix Group, Inc. | Braking grid cooling system |
FR3029485B1 (fr) * | 2014-12-03 | 2018-03-16 | Alstom Transport Technologies | Dispositif aeraulique de refroidissement d'un element d'un vehicule ferroviaire et vehicule ferroviaire correspondant |
US10081250B2 (en) | 2014-12-15 | 2018-09-25 | Dayton-Phoenix Group, Inc. | Cooling fan vane assembly for a resistor grid |
FR3037913B1 (fr) * | 2015-06-23 | 2017-08-11 | 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 |
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 |
FR3065936B1 (fr) * | 2017-05-05 | 2019-07-05 | 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 |
CN108223100B (zh) * | 2017-12-29 | 2020-03-24 | 中车唐山机车车辆有限公司 | 顶置式内燃动力总成冷却*** |
Family Cites Families (5)
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 |
JPH01141163A (ja) | 1986-02-11 | 1989-06-02 | Alsthom Atlantique Sa | 機関車の流体冷却器用及び/又は加減抵抗器用換気装置 |
US5931640A (en) * | 1997-10-17 | 1999-08-03 | Robert Bosch Corporation | Oppositely skewed counter-rotating fans |
US6142213A (en) * | 1997-11-25 | 2000-11-07 | Siemens Canada Limited | Ducted cooling system with radial-flow fan |
FR2926276B1 (fr) * | 2008-01-11 | 2010-09-03 | Alstom Transport Sa | Ensemble de ventilation d'un appareillage de vehicule ferroviaire |
-
2009
- 2009-10-06 EP EP09012623.6A patent/EP2308735B1/de not_active Not-in-force
- 2009-10-06 PL PL09012623T patent/PL2308735T3/pl unknown
Also Published As
Publication number | Publication date |
---|---|
EP2308735A1 (de) | 2011-04-13 |
PL2308735T3 (pl) | 2014-01-31 |
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