• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Rail vehicle with a friction brake (1), wherein the friction brake (1) has at least one friction partner (2) fixed to the frame, which is equipped with a heat exchanger (3), so that the braking heat generated during a braking operation in the friction partner (2) by means of a heat transfer Fluids (8), which is guided by a conveying device (4) in a heat transfer fluid circuit (5), to at least one in the heat transfer fluid circuit (5) arranged further heat exchanger (9, 13) is transferable.
    公开号:AT516143A1
    申请号:T50569/2014
    申请日:2014-08-13
    公开日:2016-02-15
    发明作者:Vladimir Dipl Ing Dr Stojanovic
    申请人:Siemens Ag Österreich；
    IPC主号:
    专利说明:

    description
    Rail vehicle with air conditioning and a friction brake
    Technical area
    The invention relates generally to the technical field of rail vehicles, in particular rail vehicles equipped with an air conditioning system and with a friction brake.
    State of the art
    In rail vehicles, the passenger compartment is provided with an air conditioning system which, in a cooling or heating operation, ensures that the respective internal temperature can be maintained within predetermined limits. In a train, an air conditioner with about 20% of energy consumption next to the drive is the largest energy consumer. Not only in rail vehicles, but in the entire vehicle technology increasingly environmental policy and environmental aspects gain in importance and go hand in hand with increasing comfort needs of the passenger. Typically, rail vehicles such as metros are often provided with conventional friction brakes, such as a disc brake or drum brake. In contrast to electrical regenerative braking, a friction brake loses kinetic energy for the vehicle to travel. The braking heat generated during a braking process is released unused to the environment. She is u. A. depending on the braking force, load and instantaneous speed of the train. With a friction brake, limit temperatures in a range between 300 ° C and 500 ° C may occur. These temperatures are still dominated by organic brake pads, moreover, sintered brake pads are used.
    The amount of heat released to the environment during a braking operation is undesirable for various reasons. For subways that travel underground over longer distances, the subway infrastructure may limit the maximum allowable heat of a train to a limit.
    In rail vehicles, it is also common for the energy required for the air conditioning of the passenger compartment to be obtained by conversion of electrical energy.
    Both the non-use of the braking heat and the use of electrical energy for the purpose of heating is inefficient and also environmentally unfavorable.
    Efforts are therefore increasingly being made to make the on-board processes of energy conversion as efficient and ecologically advantageous as possible.
    From EP 2 031 739 A2, for example, a rail vehicle with air conditioning heat exchanger for heat recovery from the refrigeration cycle for air conditioning purposes is known.
    Presentation of the invention
    It is an object of the present invention to provide a rail vehicle equipped with an air conditioner and a friction brake so that the braking heat accumulated in the friction brake during braking can be utilized as efficiently as possible on board the rail vehicle.
    This object is achieved by a rail vehicle having the features of claim 1. Advantageous embodiments of the invention are defined in the dependent claims.
    The invention is based on the consideration that the heat of the brake which has been unused to the environment during a friction brake can be usefully used aboard the rail vehicle by first tapping the brake heat of a heat transfer fluid from the friction brake friction partners and feeding it to a consumer heat exchanger. For this transport of the brake heat, a heat transfer fluid is used, which is circulated by means of a delivery device, for example a pump. The heat transfer fluid is preferably a liquid, e.g. a mixture of water and additives such as antifreeze and corrosion inhibitors.
    Advantageously switching means are provided in this circuit, by means of which the volume flow of the heat transfer fluid is steerable either via a heat exchanger of the air conditioning of the train, or via another heat exchanger to another onboard consumer. According to the invention, a control device is provided for this purpose which, on the one hand, acts on the pump in such a way that the delivery volume in the heat carrier fluid circuit can be predetermined. As a result, the heat quantity is controllable. On the other hand, switching means are provided in the heat transfer fluid circuit by means of which the volume flow can be switched either via a heat exchanger of the air conditioning system of the rail vehicle or via at least one further heat exchanger of another consumer. This makes it possible to direct depending on operating conditions heat transfer to different consumers.
    In a preferred embodiment, a temperature measuring device is provided which is arranged to measure a flow temperature downstream of the friction partner heat exchanger, a return temperature (TRI) of another heat exchanger, and the return temperature (TR 2) of an air conditioning side heat exchanger. The measuring device consists of several temperature sensors which are arranged along the heat transfer fluid circuit. Each of these temperature sensors generates an analogue measurement which is digitized and fed to the control unit. according to the operating condition, the control unit decides the target and amount of heat transport.
    In a particular embodiment, it may be provided that the control unit includes a digital computer which has a signal line with a brake computer of the
    Rail vehicle is connected. The interaction between the control unit and the brake computer results in a number of advantages. First, it should be noted that a brake computer is typically already present on a rail vehicle and is configured to calculate the required braking force for the individual braking systems of the train and to adjust it to the respective brake cylinders at a braking force specification provided by the driver. These characteristic braking values can be stored either in the brake computer itself or in the control system. By coupling the brake computer to the control unit, it is possible to calculate from existing information (stored either in the control system or in the brake computer itself) the heat of friction which is developed during a braking operation on each brake unit. Taking into account that some of the frictional heat is lost by the structural parts to the environment, the remainder of the rest represents the theoretically usable frictional heat. In this regard, a controller in the control unit (Figure 5) can act on centrifugal pump and 3-way valves in a targeted manner Amount of heat expected to be efficiently reused, either in the air conditioning system of the rail vehicle itself, or in another on-board heat consumer.
    The conveyor in the heat transfer fluid circuit may be suitably designed as a centrifugal pump, the
    Switching means can be realized in a simple and inexpensive way by conventional 3-way valves.
    In a most preferred embodiment, it may be provided that the control unit is adapted to act on the switching means and the centrifugal pump so that a temperature range required for the optimal operation of the heat pump of the air conditioner or other consumer can be maintained. Thereby, it is possible that the regenerative braking energy recovered to an on-board consumer can be adjusted to the respective circumstances of a consumer. In the event that the braking energy is supplied to an air conditioner, the heat flow communicated to the heat pump compressor may be selected to allow optimum operation (for example, in a temperature range between 15 and 25 ° C) of the air conditioner. This results in the advantage that the heat pump of the air conditioning system can be operated in an energetically favorable temperature range specified by the manufacturer of the air conditioning system. This has the result that the braking energy produced during a braking process can be used efficiently in a conventional rail vehicle air conditioning system.
    In the other case, if the thermal load is not an air conditioning system but the recovered energy is to be supplied to, for example, a hot water boiler on board, the appropriate amount of braking heat may be transmitted depending on the heat demand detected. For example, if the water temperature in a hot water boiler has dropped significantly, all or at least a large part of the energy generated during a braking operation is transferred to the hot water boiler. On the other hand, if the temperature of the hot water boiler is only slightly below its setpoint temperature, only part of the recovered braking energy will be directed to the hot water boiler; the remaining part, for example supplied to another consumer, or if not on-board
    Use is possible, delivered to the environment. Apart from this exceptional exceptional case, brake heat is available to indiviual consumers of the railway vehicle, such as in the kitchen of the restaurant wagon, in the sanitary facilities of a passenger coach, or in a sleeper car with washing facilities or elsewhere, usually in any form. It is also conceivable to transmit the brake heat to a heat accumulator, wherein when charging the energy accumulator an imminent withdrawal of energy from a preceding stretch of the control unit or the guide is taken into account.
    Brief description of the drawing
    To further explain the invention, in the following part of the description reference is made to drawings, from which further advantageous embodiments, details and further developments of the invention can be gathered by way of non-limiting example. Show it:
    Figure 1 is a block diagram illustrating the working principle;
    FIG. 2 shows a particular embodiment of the invention, in which the friction brake is designed as a disc brake, wherein the brake disc and axle are thermally decoupled;
    Figure 3 shows a particularly preferred embodiment of the invention, in which the friction brake is designed as a thermally insulated disc brake;
    Figure 4 shows a particular embodiment of the invention, in you the friction brake is designed as a pad brake, with one shown in the drawing
    Block brake unit is flowed through by a heat transfer fluid;
    Figure 5 is a block diagram of a control loop in which a transfer of the braking heat to an air conditioning system is shown, wherein the regulator takes into account an energetically favorable temperature interval predetermined by the air conditioning system;
    Figure 6 shows an embodiment of the invention in a
    Single-wheel drive unit of a low-floor tram.
    Embodiment of the invention
    Figure 1 illustrates the working principle of the invention in the form of a block diagram. A trained as a pneumatic brake friction brake 1 consists of a symbolic only hinted rotating part (drum or brake disc) aufden a frame-fixed friction partner 2 acts. The test of the model means that the friction partner 2 is fixed in position over the stroke of the braking movement, but otherwise fixed on the frame of the braking device. At the friction partner 2, a heat exchanger 3 is formed. Usually, a number of these friction partners 2 are present in one braking unit. The heat of braking occurring during a braking operation in a friction partner 2 is tapped by the heat exchanger 3. The heat exchanger 3 is flowed through by a heat transfer fluid 8. The flow of the heat transfer fluid 8 forces a conveyor 4, which in the present example is a centrifugal pump. The centrifugal pump takes up the electrical power PK1 from the grid. The heat transfer fluid 8 is conveyed in a circuit 5. In this circuit switching means 10, 11 are incorporated, which are designed as 3-way valve. For controlling the heat recovery, a control unit 7 is provided. As indicated in FIG. 1 by broken lines, the control device 7 acts both on the centrifugal pump 4 and on the 3-way valves. The control device specifies the rotational speed of the centrifugal pump and thus the volume flow of the heat transfer fluid 8 in the circulation 5 that is conveyed per unit of time. On the other hand, by acting on the 3-way valves 10, 11, the volume flow can be directed either via a heat exchanger 9 of an air conditioning system 12, or via a further heat exchanger 13. As explained in more detail below, the control unit 7 is supplied with a series of operating parameters.
    In Figure 1, above the reference numeral 12 to known components an air conditioner 12 summarized, as it is commonly used in rail vehicles.
    The air conditioning system 12 consists of two circuits, first of all a heat pump with a cycle KP, in which also a heat transfer fluid circulates. In contrast to the heat carrier fluid from above, this alternately changes the state of aggregation. The circulation is forced in a known manner by a compressor VD, which carries the heat transfer fluid in this circuit through a condenser K, through an expansion valve and through an evaporator V. The compressor VD receives the electric power PVD from the vehicle electrical system. In the present case, the heat output QVent transferred to the evaporator V originates from the braking heat removed by the friction partner 2. The condenser K of the air conditioner 12 in turn outputs heat output QW to a heat exchanger which is not further specified. This heat exchanger is also included in a cycle of a heat transfer fluid (pump PK1), so that braking heat eventually reaches heaters 16 of a passenger compartment of the rail vehicle. Thus, the object stated at the outset is achieved, the heat of friction generated in a friction partner 2 (left in FIG. 1) is at least partially transferred on board the rail vehicle in a heat consumer, for example radiator 19 in a railroad car cart (in FIG. 1, right), where it is usefully used , As mentioned above, the air conditioner 12 per se is not the subject of the invention, so that the following explanations are limited to the part of the block diagram shown in FIG. 1 to the left of the air conditioning unit 12.
    In FIG. 1, in circuit 5, the amount of heat transfer fluid 8 conducted per unit time is predetermined by the rotational speed of the centrifugal pump 4. The speed of the centrifugal pump 4 is set by the control means 7, e.g. the frequency f of a frequency converter. In Figure 1, TE denotes the temperature at the heat-absorbing heat exchanger 3, T being the temperature at the exothermic heat exchanger 9. As already indicated, the control unit 7 takes into account a number of process parameters, including the temperature of the heat transfer fluid 8, measured at various points on the circuit 5. Means a temperature measuring device 6, the flow temperature TV is measured at different locations. Another measured value is the temperature at the outlet of the heat exchanger 13 (return temperature TRI) and the return temperature TR2 at the output of the heat exchanger 9. These temperature measured values TV, TRI and TR2 are initially analogue, are digitized and supplied to the control unit 7. (In FIG. 1, this supply of the temperature measured values to the control unit 7 is indicated by arrows in each case). The control device 7 takes into account one or all of the measured temperatures when acting on the centrifugal pump 4 or on the 3-way valves 10, 11.
    By specifying the rotational speed of the centrifugal pump 4 or by specifying the switching positions of the 3-way valves, it is possible to direct the braking heat to a predetermined extent either to the air conditioning system 12 or to another heat consumer associated with the heat exchanger 13. Such a heat consumer may be, for example, the production or supply of the hot water for the on-board restaurant, but may also be one or more radiators in a passenger compartment or in a driver's cab or another consumer in a train wagon. In all these cases, a contribution to the recuperation of the heat of friction is also made.
    In order to be able to adapt the recovery of the braking energy as well as possible to the requirements of a heat consumer located on board the rail vehicle, it may be favorable if, in addition to the abovementioned temperature measured values, the heat demand measurement technique occurring in the respective consumer is also detected. For example, when heat is supplied to a heat pump of an air conditioner, it is favorable to maintain the optimum heat pump temperature T * indicated by the air conditioner manufacturer. In other words, if the supplied temperature is within a tolerance given by the plant manufacturer, the energy conversion is cycled the heat pump more efficient. In order to achieve this, the control unit 7 determines a characteristic temperature value from the measured temperatures (TV, TRI, TR2) and compares this with the temperature tolerance field specified by the manufacturer of the heat pump. For example, if this difference negative, that is, if the characteristic temperature value of the heat carrier fluid 8 is smaller than this temperature designated by the manufacturer of the heat pump / air conditioning, the speed of the centrifugal pump 4 is adjusted by the control unit 7 so that the optimum temperature range on the input side of the air conditioner 12 again is. On the other hand, if the characteristic temperature of the heat transfer fluid 8 is outside the optimum temperature range specified by the manufacturer, the 3-way valves are switched so that brake heat is not transported to the air conditioning unit 12 but to another on-board user, for example, directly into one or more cab heaters Passenger compartment, orzu a heat exchanger 13, which serves for example for industrial water treatment on board the rail vehicle.
    By means of the invention it is possible to convert the braking energy generated abruptly with a friction brake, which has hitherto been unused and often undesirably discharged to the environment, into usable heat (for example heating passenger compartment) directly on board the vehicle.
    Thanks to the invention, it is possible to usefully utilize at least part of the heat generated during a braking operation of a friction brake on board a rail vehicle.
    The beneficial use of frictional heat is not necessarily tied to the heating season. As already mentioned, the beneficial use of the braking heat is also possible outside the heating period, for example by using it for hot water preparation, in the kitchen of the feed car, in the sanitary facilities of a coach or sleeper with washing facilities (bath, shower) etc. For this purpose, outside the heating period, the heat carrier fluid 8 is switched to the heat exchanger 13. (Such a switching action also occurs within the heating period when the return temperature TR 2 downstream of the heat exchanger 9 is above the range favorable for the air conditioner 12, for example, if TR 2 > 30 ° C).
    As already mentioned above, by specifying the rotational speed of the centrifugal pump 4, brake heat accumulated can be quantified transferred to the respective consumer, for example, by determining prematurely the current demand of the energy sink (for example, instantaneous temperature in a hot water boiler) and taking it into account in the heat transfer.
    In a further aspect of the invention, the control device 7 is coupled to a brake force calculator 17 via a signal-conducting connection 18. Such a braking force calculator 17 is usually always present on trains. He has the task, a predetermined by the driver braking force specification taking into account the current vehicle weight and the current
    Vehicle speed to calculate the required braking force for the pneumatic air brake and adjust these amjeweiligen brake cylinder. Taking this information into consideration, it is possible to predictively calculate the heat of friction developed at a brake unit at a braking operation. Taking into account the amount of heat lost by convection and radiation convection, it is possible to estimate the practically usable braking heat produced during a braking process. Knowing the calculated usable brake heat, the rotational speed of the centrifugal pump or the amount of heat carrier fluid per second can be set such that the temperature of the heat transfer fluid conveyed through the heat exchanger 9 of the air conditioning system 12 to the temperature range T * required for the optimal operation of the heat pump of the air conditioning system (for example 15-25 ° C) are very well adapted. In other words, by keeping the heat output Qv output to the evaporator V of the heat pump of the air conditioner within certain limits, it is possible to operate the air conditioner 12 in a favorable working range. The same applies in the event that frictional heat is transferred as required to another consumer (via heat exchanger 13).
    Figure 2 shows the application of the invention to a disc brake. The disc brake has stationary brake shoes 2. Each of these brake shoes is designed as a heat exchanger. Each heat exchanger 3 is flowed through by a heat transfer fluid 8. The heat transfer fluid 8 is in isolated lines and derived (flow, return). Thanks to the insulated pipes, a large part of the braking heat enters the cycle 5. In FIG. 1, TE is the temperature at the heat-absorbing heat exchanger 3, T being the temperature at the heat-emitting heat exchanger 9. Brake disk 19 is mounted on the axle 15.
    In order to use as much brake heat, it may also be beneficial to isolate the rotating Reibpartnerwärmetechnisch. This can be done, for example, by connecting the brake disk to the wheelset shaft 15 by means of an isolating part 14. Thereby, the heat flow from the brake disk 19 to the wheel set shaft 15 is inhibited. This is outlined in FIG. The insulation part 14 thermally separates the brake disk 19 and the wheel set shaft 15. Each brake shoe of the disk brake is again formed as a heat exchanger 3. The heat exchanger 3 is integrated via insulated lines in a circuit of a heat carrier fluid 8. Due to the thermal decoupling between the brake disk 19 and the wheelset shaft 15, it is achieved that a large part of the energy component arising during braking can be used for recuperation.
    Figure 4 shows the application of the invention to a pad brake. The brake shoe of the pad brake again forms a heat exchanger 3 through which a heat transfer fluid 8 flows and is fed in and out through insulated lines.
    FIG. 5 shows a block diagram of a control circuit with which a transfer of the braking heat to an air conditioning system is carried out in such a way that a temperature interval predetermined by the air conditioning system is taken into account. In this case, the control unit 7 receives the favorable temperature interval (TOPmax and TOPmin) seen from the type of air conditioning system from the heat pump of the air conditioning system. The delivery temperature TA to the air conditioner is returned to the regulator. Taking into account the input temperature TE (heat dissipation at the friction partner), the controller regulates the frequency or rotational speed of the centrifugal pump in the circuit 5. As a result, the brake heat released to the air conditioner is discharged so as to allow the heat pump of the air conditioner to operate optimally.
    Figure 6 shows an embodiment of the invention in a drive for a single wheel of a low-floor tram. A right-angle single-wheel drive unit 21 is provided with a disc brake at its upper end facing away from the rail. This has at the end of the drive shaft 20, a rotating brake disc 19. The disc brake has two provided Reibpartner 2 (brake shoes) on. Each of these brake shoes 2 functions as a heat exchanger 3 for a heat transfer fluid 8. The heat transfer fluid 8 is returned to the cycle 5 explained above for the purpose of energy recovery.
    In summary, the invention provides a number of advantages:
    First, it should be mentioned that thanks to the invention, the on-board energy consumption can be reduced. The on-board power supply of a train requires less energy to be extracted, allowing these assemblies to be designed for lower nominal power, which saves investment.
    The high-quality electrical energy is not used for heating, but for driving compressors of the heat pump and operation of the centrifugal pump and thus used highly efficiently.
    A further significant advantage results from the fact that the air conditioning system is supplied with brake heat in a temperature interval which is favorable for the air conditioning system, which is favorable for the number of outputs. For a subway infrastructure, it is advantageous that the waste heat generated by a subway train in the tunnel is low overall.
    Since braking heat is at least partially derived from a friction partner (brake pad), it reduces
    Braking temperature and to a certain extent with the wear.
    In implementing the invention, the fact that many rail vehicles, e.g. in the case of metros or passenger coaches, the air conditioning system is installed in the immediate vicinity of the undercarriage trolleys. Thereby, the line length for the heat transfer fluid can be kept comparatively short
    Finally, we achieved a reduction of CO 2 emissions through energy savings and made a contribution to environmental protection.
    Although the invention has been further illustrated and described in detail by preferred embodiments, the invention is not limited by the disclosed examples. Other variations can be deduced therefrom by those skilled in the art without departing from the scope of the invention.
    Thus, the at least one heat exchanger 13 may be coupled to various users of a railway vehicle, for example radiators, boilers for heat treatment. Each of these heat sinks may be provided with a temperature sensor, the signal of which is supplied to the control unit 7.
    As the heat transfer fluid, a number of materials suitable for railway engineering and commercially available materials are available.
    Of course, the invention is not limited to the above types of pneumatically actuated friction brakes, but is applicable wherever heat from a friction partner is removable through a heat exchanger.
    Composition of the reference numbers used 1 friction brake 2 friction partner 3 heat exchanger 4 conveying device, centrifugal pump 5 heat transfer fluid circuit 6 temperature measuring device 7 control unit 8 volume flow of the heat transfer fluid 9 heat exchanger - air conditioning 10 three-way valve 11 three-way valve 12 air conditioning 13 heat exchanger - consumers 14 insulation part, thermal decoupling 15 Wheelset 16 Radiator 17 Brake computer 18 Signal connection between 17 and 7 19 Brake disc 20 Drive shaft of a single-wheel drive 21 Single-wheel drive unit TA Temperature at the heat exchanger of the air conditioning system (outlet) TE Temperature at the heat exchanger of a friction partner (inlet) TV Flow temperature TRI Return temperature heat exchanger LoadTR2 Return temperature heat exchanger Air conditioningT * Temperature, low for a consumer
    Qv Heat output absorbed in the evaporatorQW to heat Consumers output heat output V EvaporatorK Condenser VD Compressed expansion valve KP Flow direction of the cycle PVD Electric drive power CompressorPK1 Electric drive power Centrifugal pump 4PK2 Electric drive power Centrifugal pump
    权利要求:
    Claims (11)
    [1]
    1. Rail vehicle with a friction brake (1), wherein the friction brake (1) at least one frame-fixed friction partner (2), which is equipped with a heat exchanger (3), so that in a braking process in the partner (2) resulting brake heat by means of a heat carrier Fluids (8), which is guided by a conveyor device (4) in a heat transfer fluid circuit (5), at least one in the heat transfer fluid circuit (5) arranged further heat exchanger (9, 13) is transferable.
    [2]
    2. Rail vehicle according to claim 1, characterized in that a. a measuring device (6) for measuring the temperature (TV, TRI, TR2) of the heat transfer fluid (8) is provided, and b. a control device (7) is provided, which is supplied with the measured temperature (TV, TRI, TR2), wherein the control device (7) is arranged i. on the one hand on the heat transfer fluid circuit (5) arranged switching means (10, 11) soeinzuwirken that the heat transfer fluid (8) either via a heat exchanger (9) an air conditioning (12) or via a further consumer-side heat exchanger (13) is switchable and ii. on the other hand act on the conveying device (4) so that the volume flow of the heat carrier fluid (8) can be predetermined.
    [3]
    3. Rail vehicle according to claim 2, characterized in that the measuring device (6) is adapted to a supply temperature (TV) downstream of the heat exchanger (3), and / or a return temperature (TRI) downstream of the heat exchanger (13) and a return temperature (TR 2) of a heat exchanger (9) measure the air conditioner (12).
    [4]
    4. Rail vehicle according to claim 3, characterized in that the control unit (7) contains a digital controller and is signal-connected via a signal line (18) to a brake computer (17) of the rail vehicle.
    [5]
    5. Rail vehicle according to claim 4, characterized in that the brake computer (17) is arranged to anticipate anticipated in an impending braking operation expected braking heat and to transmit a usable portion thereof in the form of a signal via the signal line (18) to the control unit (7).
    [6]
    6. Rail vehicle according to claim 5, characterized in that the conveying device (4) is designed as a centrifugal pump.
    [7]
    7. Rail vehicle according to claim 5, characterized in that the switching means (10, 11) are designed as 3-way valves.
    [8]
    A railway vehicle according to claim 5, characterized in that the control unit (7) is adapted to act on the switching means (10, 11) and the conveyor (4) in such a way as to provide optimum operation of the heat pump of the air conditioning system (12) or other consumer required temperature range is maintained.
    [9]
    A rail vehicle according to any one of claims 1-8, characterized in that the friction brake comprises a rotating friction partner which is connected to a wheel set shaft (15) by means of an insulating part (17).
    [10]
    10. Rail vehicle according to one of claims 1-8, characterized in that the friction brake comprises a rotating friction partner, the ends of a vertically aligned drive shaft (20) of a Einzelradantriebseinheit (21) is arranged.
    [11]
    11. Rail vehicle according to claim 9 or 10, characterized in that the rotating friction partner is formed by a brake disc (19) of a disc brake.
    类似技术:
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    EP3180539B1|2021-09-22|Rail vehicle having an air-conditioning system and having a friction brake
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    EP2481898A1|2012-08-01|Cooling system for a rail vehicle
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    同族专利:
    公开号 | 公开日
    EP3180539A1|2017-06-21|
    AT516143B1|2021-02-15|
    WO2016023682A1|2016-02-18|
    EP3180539B1|2021-09-22|
    引用文献:
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50569/2014A|AT516143B1|2014-08-13|2014-08-13|Rail vehicle with air conditioning and a friction brake|ATA50569/2014A| AT516143B1|2014-08-13|2014-08-13|Rail vehicle with air conditioning and a friction brake|
    PCT/EP2015/065295| WO2016023682A1|2014-08-13|2015-07-06|Rail vehicle having an air-conditioning system and having a friction brake|
    EP15736808.5A| EP3180539B1|2014-08-13|2015-07-06|Rail vehicle having an air-conditioning system and having a friction brake|
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