DE10339211C5 - Cooling concept for brake means of a locomotive - Google Patents
Cooling concept for brake means of a locomotive Download PDFInfo
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- DE10339211C5 DE10339211C5 DE10339211.4A DE10339211A DE10339211C5 DE 10339211 C5 DE10339211 C5 DE 10339211C5 DE 10339211 A DE10339211 A DE 10339211A DE 10339211 C5 DE10339211 C5 DE 10339211C5
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- engine
- brake
- cooling
- heat exchanger
- braking
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- 238000001816 cooling Methods 0.000 title claims abstract description 54
- 230000003137 locomotive effect Effects 0.000 title description 4
- 239000002826 coolant Substances 0.000 claims abstract description 14
- 238000002485 combustion reaction Methods 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 239000012530 fluid Substances 0.000 claims description 4
- 239000000110 cooling liquid Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000005520 electrodynamics Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000004941 influx Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T5/00—Vehicle modifications to facilitate cooling of brakes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/61—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/02—Dynamic electric resistor braking
- B60L7/06—Dynamic electric resistor braking for vehicles propelled by AC motors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/10—Dynamic electric regenerative braking
- B60L7/14—Dynamic electric regenerative braking for vehicles propelled by AC motors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/22—Dynamic electric resistor braking, combined with dynamic electric regenerative braking
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
- F01P7/165—Controlling of coolant flow the coolant being liquid by thermostatic control characterised by systems with two or more loops
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/78—Features relating to cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2210/00—Converter types
- B60L2210/30—AC to DC converters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2210/00—Converter types
- B60L2210/40—DC to AC converters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/10—Vehicle control parameters
- B60L2240/36—Temperature of vehicle components or parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/44—Drive Train control parameters related to combustion engines
- B60L2240/445—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
- F01P2005/105—Using two or more pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P2060/00—Cooling circuits using auxiliaries
- F01P2060/06—Retarder
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
Schienengeführtes Triebfahrzeug (1) mit einem Verbrennungsmotor (2) zum Erzeugen einer Antriebsbewegung für das Triebfahrzeug (1), einem Motorkühler (10) zum Kühlen des Verbrennungsmotors (2) und Bremsmitteln (6, 5a, 5b, 17) zum Abbremsen des Triebfahrzeuges (1), wobei die Bremsmittel (6, 5a, 5b, 17) über einen mit Kühlflüssigkeit befüllten Bremskühlkreislauf (18, 19) mit dem Motorkühler (10) des Verbrennungsmotors (2) verbunden sind, wobei die Bremsmittel eine elektrische Bremse (6, 5a, 5b, 17) mit einem Bremswiderstand (17) aufweisen und der Bremswiderstand (17) über den Bremskühlkreislauf (18, 19) mit dem Motorkühler (10) verbunden ist, wobei der Motorkühler (10) wenigstens einen in den Bremskühlkreislauf (18, 19) eingebundenen Bremswärmetauscher (19) und wenigstens einen in einen Motorkühlkreislauf (14, 15) eingebundenen Motorwärmetauscher (14) aufweist dadurch gekennzeichnet, dass sowohl der Bremswärmetauscher (19) als auch der Motorwärmetauscher (14) als Luft-/Flüssigkeitswärmeaustauscher ausgelegt sind, und dass der Motorkühler (10) zum Kühlen zweier voneinander unabhängiger Kühlkreisläufe dient.Rail-guided traction vehicle (1) with an internal combustion engine (2) for generating a drive movement for the traction vehicle (1), an engine radiator (10) for cooling the internal combustion engine (2) and braking means (6, 5a, 5b, 17) for decelerating the traction vehicle ( 1), wherein the brake means (6, 5a, 5b, 17) via a filled with coolant brake cooling circuit (18, 19) with the engine radiator (10) of the internal combustion engine (2) are connected, wherein the braking means is an electric brake (6, 5a , 5b, 17) with a braking resistor (17) and the braking resistor (17) via the brake cooling circuit (18, 19) with the engine radiator (10) is connected, wherein the engine radiator (10) at least one in the brake cooling circuit (18, 19 ) integrated brake heat exchanger (19) and at least one in an engine cooling circuit (14, 15) integrated motor heat exchanger (14), characterized in that both the brake heat exchanger (19) and the engine heat exchanger (14) as an air / Liquid heat exchanger are designed, and that the engine radiator (10) is used for cooling two independent cooling circuits.
Description
Die Erfindung betrifft ein schienengeführtes Triebfahrzeug gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a rail-guided traction vehicle according to the preamble of patent claim 1.
Ein solches schienengeführtes Triebfahrzeug ist aus der
Gasförmige Kühlmittel wie Luft entfalten im Vergleich zu flüssigen Kühlmitteln eine geringere Kühlwirkung, da ein vergleichsweise schlechterer Wärmeübergang zwischen den in der Regel metallischen Bremsmitteln und dem Kühlmittel stattfindet. Dies kann zu raumgreifenden Bremsmitteln führen, da eine zur Kühlung der Bremsmittel ausreichend große Anströmfläche für die Luft bereitgestellt werden muss. Darüber hinaus kann eine Dachanordnung des Bremswiderstandes aus konstruktiven Gründen unvorteilhaft sein.Gaseous coolants such as air exhibit a lower cooling effect in comparison to liquid coolants, since a comparatively poorer heat transfer takes place between the usually metallic brake means and the coolant. This can lead to bulky braking means, as a sufficiently large flow area for the air must be provided for cooling the brake fluid. In addition, a roof assembly of the braking resistor may be unfavorable for structural reasons.
Aus der
Die Kühlung elektrischer Bremswiderstände mit einer Kühlflüssigkeit ist aus der
Die
Aus der
Aufgabe der Erfindung ist es, ein schienengeführtes Triebfahrzeug der eingangs genannten Art bereitzustellen, dessen Bremsmittel kompakt sind und das gleichzeitig in der Lage ist, auch hohe Bremswärmen effektiv an die Atmosphäre abzuführen.The object of the invention is to provide a rail-guided traction vehicle of the type mentioned, the braking means are compact and at the same time is able to effectively dissipate even high braking heat to the atmosphere.
Die Erfindung löst diese Aufgabe durch die kennzeichnenden Merkmale des Anspruchs 1.The invention solves this problem by the characterizing features of claim 1.
Erfindungsgemäß verfügen die Bremsmittel über eine elektrodynamische Bremse mit einem Bremswiderstand. Der Bremswiderstand wird durch eine Kühlflüssigkeit gekühlt. Durch diese Flüssigkühlung wird die Kühlungseffektivität gegenüber luftgekühlten Bremswiderständen beträchtliche erhöht. Darüber hinaus kann im Rahmen der Erfindung auf einen zusätzlichen Luftkühler für die Bremsmittel selbst oder für den Bremskreislauf verzichtet werden. Die Bremswärme der Bremsmittel wird erfindungsgemäß über die Kühlflüssigkeit zum ohnehin vorhandenen Motorkühler des Verbrennungsmotors transportiert und durch dessen Luftkühlung an die Atmosphäre abgeführt. Das erfindungsgemäße Triebfahrzeug weist daher Bremsmittel auf, die kompakt und gleichzeitig mit einer effektiven Kühlung versehen sind. Ferner kann erfindungsgemäß auch bei geringem für die Bremsmittel zur Verfügung stehenden Bauraum auf eine Flussigkühlung zurückgegriffen werden. Dabei ist die Kühlleistung eines Lüfters des Motorkühlers in der Regel so groß, dass auch bei geringer Umwälzgeschwindigkeit der Kühlflüssigkeit für die Bremsmittel eine ausreichend hohe Kühlungsleistung bereitgestellt ist.According to the invention, the braking means have an electrodynamic brake with a braking resistor. The braking resistor is cooled by a coolant. This liquid cooling significantly increases the cooling efficiency over air cooled brake resistors. In addition, can be dispensed with in the context of the invention to an additional air cooler for the braking means itself or for the brake circuit. The braking heat of the braking means is transported according to the invention via the cooling liquid to the already existing engine radiator of the engine and discharged through the air cooling to the atmosphere. The traction vehicle according to the invention therefore has braking means which are compact and at the same time provided with effective cooling. Furthermore, according to the invention, recourse can be made to a liquid cooling even with a small space available for the braking means. In this case, the cooling capacity of a fan of the engine radiator is generally so great that a sufficiently high cooling capacity is provided even for a low circulation speed of the coolant for the brake fluid.
Die Bremsmittel können im Rahmen der Erfindung eine Bremsscheibe aufweisen. Dabei ist die Bremsscheibe drehfest mit jeweils einem Rad des Triebwagens verbunden. Gemäß dieser erfindungsgemäßen Weiterentwicklung verfügt die Bremsscheibe über eine Bremsfläche, die einem beispielsweise hydraulisch verfahrbaren Bremsschuh zugewandt ist. Im Bremsfall wird der Bremsschuh hydraulisch gegen die Bremsfläche der Bremsscheibe gepresst, so dass aufgrund der entstehenden Reibung eine Bremswirkung erzeugt wird. Innerhalb der Bremsscheibe sind Kühlkanäle vorgesehen, die von dem umgewälzten flüssigen Kühlmittel durchströmt werden. Dabei erwärmt sich die Kühlflüssigkeit in der Bremsscheibe. Durch das Umwälzen der Kühlflüssigkeit wird die Bremswärme von der Bremsscheibe zum Motorkühler transportiert und dort an die an dem Motorkühler vorbeiströmende Luft abgegeben.The braking means may comprise a brake disc in the invention. The brake disc is rotatably connected to one wheel of the railcar. According to this development of the invention, the brake disc has a braking surface, which faces an example hydraulically movable brake shoe. In the case of braking, the brake shoe is hydraulically pressed against the braking surface of the brake disc, so that due to the resulting friction, a braking effect is generated. Inside the brake disc are Cooling channels provided, which are flowed through by the circulating liquid coolant. The coolant in the brake disc heats up. By circulating the cooling liquid, the brake heat is transported from the brake disk to the engine radiator and discharged there to the air flowing past the engine radiator.
Der flüssiggekühlte Bremswiderstand muss erfindungsgemäß nicht mehr auf dem Dach des Triebfahrzeugs angeordnet sein. Vielmehr ist es durch die hocheffiziente Flüssigkühlung des Bremswiderstandes möglich, diesen an beliebigen Stellen des Triebfahrzeugs anzuordnen, so dass die konstruktiven Gestaltungsmöglichkeiten des Triebfahrzeugs beträchtlich erhöht sind. Auch kann der Luftwiderstand des Triebfahrzeugs durch die Vermeidung einer Dachanordnung des Bremswiderstandes herabgesetzt werden.The liquid-cooled brake resistor according to the invention no longer needs to be arranged on the roof of the traction vehicle. Rather, it is possible by the highly efficient liquid cooling of the braking resistor to arrange this at any point of the traction unit, so that the structural design options of the traction unit are considerably increased. Also, the aerodynamic drag of the traction vehicle can be reduced by avoiding a roof arrangement of the braking resistor.
Der Motorkühler ist zweckmäßigerweise so in dem Triebfahrzeug angeordnet, dass Fahrtwind in den Motorkühler einleitbar ist. Bei einer diesbezüglich zweckmäßigen Weiterentwicklung weist der Motorkühler einen Lüfter auf, der insbesondere bei langsamer Fahrt des Triebfahrzeugs einen zur Kuhlung ausreichend großen Luftstrom bereitstellt. Der Motorkuhler kann nur durch den Lüfter gekühlt werden.The engine radiator is expediently arranged in the traction vehicle so that the wind can be introduced into the engine radiator. In an expedient further development in this regard, the engine radiator has a fan, which provides a sufficiently large airflow for cooling, especially at slow speed of the traction unit. The engine cooler can only be cooled by the fan.
Vorteilhafterweise verfügt der Bremskühlkreislauf über eine Pumpe zum Umwälzen der Kühlflüssigkeit. Dabei ist die Pumpe beispielsweise von einem Akkumulator gespeist, der mit dem Verbrennungsmotor gekoppelt ist und von diesem wieder aufgeladen wird. Abweichend hiervon ist es jedoch auch moglich, statt einer Elektropumpe eine hydraulische Pumpe im Bremskreislauf vorzusehen. Dabei ist die hydraulische Pumpe ebenfalls von dem Verbrennungsmotor angetrieben.Advantageously, the brake cooling circuit has a pump for circulating the cooling liquid. In this case, the pump is fed, for example, from an accumulator, which is coupled to the internal combustion engine and is recharged by this. Deviating from this, however, it is also possible to provide a hydraulic pump in the brake circuit instead of an electric pump. The hydraulic pump is also driven by the internal combustion engine.
Erfindungsgemäß weist der Motorkühler wenigstens einen in den Bremskühlkreislauf eingebundenen eigenen Bremswärmetauscher und wenigstens einen in einen Motorkühlkreislauf eingebundenen Motorwärmetauscher auf, wobei der Motorkühlkreislauf zum Kühlen des Verbrennungsmotors vorgesehenen ist. Gemäß dieser vorteilhaften Weiterentwicklung ist ein Motorkühler bereitgestellt, der zum Kühlen zweier voneinander unabhängiger Kühlkreisläufe dient.According to the invention, the engine radiator has at least one integrated in the brake cooling circuit own brake heat exchanger and at least one incorporated in an engine cooling circuit engine heat exchanger, wherein the engine cooling circuit is provided for cooling the internal combustion engine. According to this advantageous further development, an engine radiator is provided, which serves for cooling two independent cooling circuits.
Sowohl der Bremswärmetauscher als auch der Motorwärmetauscher als Luft-/Flüssigkeitswärmeaustauscher ausgelegt. Dabei ist der Motorblock des Verbrennungsmotors über ein Rohrleitungssystem mit dem Motorkühler verbunden, wobei die Motorflüssigkeit in dem Rohrleitungssystem umgewalzt wird. Dabei umströmt die Motorkühlflüssigkeit den Motorblock, nimmt die bei der Brennstoffverbrennung entstehende Wärme auf und führt diese dem Motorkühler zu, wo sie an die Atmosphare abgegeben wird.Both the brake heat exchanger and the engine heat exchanger designed as air / liquid heat exchanger. In this case, the engine block of the internal combustion engine is connected via a pipeline system with the engine radiator, wherein the engine fluid is circulated in the pipeline system. The engine coolant flows around the engine block, absorbs the heat generated during fuel combustion and feeds it to the engine radiator, where it is released to the atmosphere.
Gemäß einem bevorzugten Ausführungsbeispiel der Erfindung weist das Triebfahrzeug einen Elektromotor auf. Hierbei ist der Verbrennungsmotor zweckmäßigerweise ein Dieselmotor. Solche Triebfahrzeuge werden auch dieselelektrische Triebfahrzeuge genannt. Hierbei treibt der Verbrennungsmotor den Elektromotor an, so dass auf ein aufwendiges Getriebe zum Einleiten des Antriebs in Antriebsräder des Triebwagens verzichtet werden kann. Als Elektromotor eignet sich beispielsweise ein Drehstrommotor. Es können jedoch auch Gleichstrommotoren im Rahmen der Erfindung eingesetzt werden.According to a preferred embodiment of the invention, the traction vehicle has an electric motor. Here, the internal combustion engine is expediently a diesel engine. Such traction vehicles are also called diesel-electric traction vehicles. Here, the engine drives the electric motor, so that can be dispensed with a complex gear for initiating the drive in the drive wheels of the railcar. As an electric motor, for example, is a three-phase motor. However, it is also possible to use DC motors within the scope of the invention.
Vorteilhafterweise weist der Motorkuhler bewegliche Verschlussmittel auf, die zur Steuerung der Luftführung in dem Motorkühler vorgesehen sind. Durch die Verschlussmittel ist es möglich, die Kühlleistung des Motorkühlers nach Bedarf auf die jeweiligen Kuhlsysteme zu verteilen. So kann beispielsweise im Normalbetrieb des Triebfahrzeugs die erzeugte Bremswärme gering sein, so dass der Bremswärmetauscher beispielsweise mit weniger Kühlluft beaufschlagt werden muss als während einer starken Bremsung. Der erforderliche Kühlbedarf des Verbrennungsmotors verhält sich jedoch bei ungebremster Fahrt mit hohen Geschwindigkeiten in der Regel gegensätzlich dazu. Die Verschlussmittel erlauben es, den Motorkühler flexibel an unterschiedliche Betriebsituationen des Triebfahrzeugs anzupassen. Dazu sind die Verschlussmittel zweckmäßigerweise mit einem Stellantrieb sowie einer Steuerung ausgerüstet, wobei der Stellantrieb die Verschlussmittel in Abhängigkeit der jeweils erforderlichen Verteilung der Kühlung in dem Motorkühler ausrichtet, so dass der Luftstrom im Motorkühler in eine hierzu zweckmäßige Richtung umgelenkt oder aufgefächert wird.Advantageously, the engine cooler has movable closure means which are provided for controlling the air flow in the engine radiator. By the closure means, it is possible to distribute the cooling capacity of the engine radiator as needed to the respective Kuhlsysteme. Thus, for example, during normal operation of the traction vehicle, the generated braking heat be low, so that the brake heat exchanger, for example, must be acted upon with less cooling air than during a strong braking. However, the required cooling requirement of the internal combustion engine behaves in unopposed driving at high speeds usually contrary. The closure means allow the engine radiator to be flexibly adapted to different operating situations of the traction vehicle. For this purpose, the closure means are expediently equipped with an actuator and a controller, wherein the actuator aligns the closure means depending on the particular required distribution of cooling in the engine radiator, so that the air flow in the engine radiator is deflected or fanned out in a purposeful direction.
Vorteilhafterweise sind die Verschlussmittel als bewegliche Lamellen realisiert, die mit jeweils einem Motorwarmetauscher verbunden sind.Advantageously, the closure means are realized as movable blades, which are each connected to a motor heat exchanger.
Weitere zweckmäßige Ausgestaltungen und Vorteile der Erfindung sind Gegenstand der nachfolgenden Beschreibung von Ausführungsbeispielen der Erfindung unter Bezug auf die Figur der Zeichnung, wobeiFurther expedient embodiments and advantages of the invention are the subject of the following description of embodiments of the invention with reference to the figure of the drawing, wherein
Die Antriebswechselspannung dient zum Antrieb eines als Drehstrom-Asynchron-Motor ausgebildeten Elektromotors
Zum Abkühlen des Dieselmotors
In dem gezeigten Ausführungsbeispiel weist der Motorkuhler
Das Triebfahrzeug
Zum Abführen der Bremswärme ist der Bremswiderstand
Die beim Bremsen erzeugte Bremswärme wird somit über das Rohrleitungssystem
Der Motorkuhler
Bei erhöhtem Kühlbedarf des Dieselmotors
Claims (4)
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DE10339211.4A DE10339211C5 (en) | 2003-08-20 | 2003-08-20 | Cooling concept for brake means of a locomotive |
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DE10339211.4A DE10339211C5 (en) | 2003-08-20 | 2003-08-20 | Cooling concept for brake means of a locomotive |
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DE10339211A1 DE10339211A1 (en) | 2005-03-24 |
DE10339211B4 DE10339211B4 (en) | 2007-05-10 |
DE10339211C5 true DE10339211C5 (en) | 2017-11-02 |
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DE102007003172B4 (en) * | 2006-08-08 | 2011-06-01 | Siemens Ag | Diesel electric drive system |
DE102006044742A1 (en) | 2006-09-20 | 2008-04-03 | Schniewindt Gmbh & Co. Kg | marine propulsion |
DE102008023175A1 (en) | 2008-05-10 | 2009-11-12 | Schalker Eisenhütte Maschinenfabrik Gmbh | Rail-guided traction vehicle |
DE202008018278U1 (en) | 2008-05-10 | 2012-07-04 | Schalker Eisenhütte Maschinenfabrik Gmbh | Rail-guided traction vehicle |
DE102015203689B4 (en) * | 2015-03-02 | 2017-12-14 | Siemens Aktiengesellschaft | Vehicle, in particular rail vehicle, with braking resistor |
CN108494291B (en) * | 2018-05-04 | 2021-06-04 | 阜宁广兴机械有限公司 | Dynamic resistance brake device |
CN112693300B (en) * | 2020-12-28 | 2022-11-04 | 泰安航天特种车有限公司 | Cooling system and cooling method shared by brake resistor and engine of hybrid electric vehicle |
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DE19754932A1 (en) * | 1997-12-11 | 1999-06-24 | Voith Turbo Kg | Electric braking resistor assembly for electric drive systems |
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DE1160319B (en) * | 1955-08-13 | 1963-12-27 | Daimler Benz Ag | Hydraulically operated disc brakes for motor vehicles |
DE3625375A1 (en) * | 1986-07-26 | 1988-02-04 | Porsche Ag | COOLING FLAP AND BLOWER CONTROL FOR MOTOR VEHICLES |
DE19754932A1 (en) * | 1997-12-11 | 1999-06-24 | Voith Turbo Kg | Electric braking resistor assembly for electric drive systems |
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