Rail vehicle

Abstract

The invention relates to a rail vehicle (1) comprising at least a vehicle interior (10), an air conditioning and air supply system (100) for the vehicle interior (10) including an intake unit (110) for supplying ambient air to the vehicle interior (100), and at least one assembly (200), the rail vehicle (1) being designed to supply the assembly (200) with air from the vehicle interior (100).

Description

[0001] Description

[0002] Rail vehicle

[0003] The invention relates to a rail vehicle, comprising at least one vehicle interior, an air conditioning and air supply system for the vehicle interior with an intake for supplying outside air into the vehicle interior, and at least one unit.

[0004] In rail vehicles, some components on the roof or underfloor, such as air conditioning systems, air supply systems, etc., require outside air intake. Since certain regions or climates contain a high proportion of sand and dust in the intake air, complex sand filter systems must be used for the components, and the interfaces must be sealed against dust. This leads to complex designs and shorter maintenance intervals or frequent failures of components such as filters and fans.

[0005] When taking in outside air, components such as air conditioning and air supply systems must be protected from high levels of dust and dust particles by special filter systems with, for example, filters, grilles, or separators, or they must be designed to be particularly robust against these environmental influences. This is particularly the case when a train travels through an area such as a desert, where the outside air (ambient air) is heavily polluted with particles such as sand. The exhaust air from the air conditioning system is usually blown out of the vehicle without further specific use.

[0006] In addition to the vehicle interior, units also require air cooling under certain climatic conditions in order to maintain their function and protect their components. Since natural convection is usually not sufficient for cooling, outside air is used. In this case too, fans and special filter systems are required. Here, too, the ingress of sand must be avoided. The outside air taken in is passed through particle separators and / or filters, grilles in order to reduce the particle load to a tolerable level. Alternatively, the units or parts such as heat exchangers, pumps / compressors in these systems are designed to be particularly robust in order to withstand the particularly aggressive environmental influences.

[0007] In construction machinery, the airflow through the heat exchangers may be briefly reversed to blow off settled particles. This does not help against abrasion caused by sand, for example, and is not helpful.

[0008] In both cases, more complex and / or additional components are used. This usually involves increased service costs, such as filter cleaning.

[0009] Based on this, the invention is based on the object of providing a rail vehicle that is structurally simpler and reduces maintenance costs. This object is achieved by the features of claim 1. Advantageous embodiments and further developments are the subject of the dependent claims.

[0010] According to the invention, a rail vehicle is provided, comprising at least one vehicle interior, an air conditioning and air supply system for the vehicle interior with an intake for supplying outside air into the vehicle interior, and at least one unit. The rail vehicle is designed to supply the unit with air from the vehicle interior. By using the air from the vehicle interior to cool units, special filter systems, fans, and complex structures for sealing the interfaces against dust can be eliminated.

[0011] In order to minimize or avoid costly upgrading of the ventilation systems, the air from the vehicle interior is used.

[0012] This air has already been cleaned during intake by the rail vehicle's air conditioning and air supply system, and after its primary use in the vehicle interior (e.g., passenger compartment), it is only lightly contaminated with particles (compared to, for example, the outside air in deserts, which is heavily contaminated with sand particles). If this air from the vehicle interior is specifically directed through units such as cooling systems for transformers, traction motors, or Gailey cooling units, the pollution from the ambient air drawn in from outside (outside air) is reduced or eliminated.

[0013] The energy efficiency of the rail vehicle can be increased further because at high ambient temperatures the exhaust air from the air conditioning and air supply system, i.e. the air from the vehicle interior, is cooler than the outside air. Heat exchange processes for cooling are therefore more efficient when the exhaust air from the air conditioning and air supply system is used. In deserts in particular, the humidity of the outside air (ambient air) is low. The exhaust air from the air conditioning and air supply system is usually charged with a high relative humidity, for example from the passengers in the rail vehicle. If used correctly, this further increases the efficiency of the thermodynamic cooling process. The targeted use of the exhaust air from the air conditioning and air supply system minimizes the effort and cost of upgrading rail vehicles in particularly aggressive environments such as deserts.In addition, the energy efficiency of the rail vehicle increases.

[0014] The vehicle interior may preferably be a passenger compartment.

[0015] According to the invention, a possibility is thus provided to blow the air out of the interior via a unit to be cooled.

[0016] In a further development of the rail vehicle, it can be provided that the at least one unit is or comprises a unit arranged outside the vehicle interior.

[0017] This makes it possible to supply a unit located outside the interior with the exhaust air from the interior.

[0018] Furthermore, it can be provided that alternatively or additionally the at least one unit 200 is or comprises an unit 200 arranged within the vehicle interior 10.

[0019] This makes it possible to supply a unit located inside the interior with the exhaust air from the interior.

[0020] In an advantageous development of the rail vehicle, the rail vehicle can be provided with an air supply device designed to supply the unit with air from the interior. For this purpose, a corresponding intake is provided in the vehicle interior near the unit.

[0021] It can further be provided that the air supply device has an exhaust air unit which draws in air from the vehicle interior and supplies it to the unit.

[0022] This ensures that the exhaust air (exhaust air) from the vehicle interior is specifically removed from the vehicle interior by the exhaust air unit and fed to the unit.

[0023] In addition, the costly upgrading of the air-conducting systems is minimized and the air that has to be removed from the vehicle interior is specifically fed to the unit.

[0024] Furthermore, it can be provided that the air conditioning and air supply system has at least one air conditioning device for conditioning the outside air to be supplied to the vehicle interior. The conditioning of the air can, for example, comprise adjusting the air temperature and the air humidity. It can be provided that the air conditioning device conditions the air with regard to its use in the vehicle interior. Furthermore, when conditioning the outside air, it can be taken into account that, after flowing through the vehicle interior, it is supplied to at least one unit.

[0025] In a further development, the air conditioning and air supply system may further include at least one sand and dust filter system for filtering the outside air taken in. This filters out the sand and dust from the outside air before it is fed into the rail vehicle.

[0026] The already pre-cleaned exhaust air from the air conditioning and air supply system can also be fed to a compressed air generation device in the rail vehicle in order to minimize the processing of the intake air.

[0027] This can reduce the amount of equipment required to generate compressed air.

[0028] The compressed air generation device is designed to supply compressed air to a compressed air system of the rail vehicle. Connected to the compressed air system are, for example, compressed air brakes or other pneumatic systems.

[0029] In one embodiment, the air conditioning and air supply system may be arranged above the vehicle interior. The air conditioning and air supply system is preferably arranged in the roof area of ​​the rail vehicle. Accordingly, the air conditioning and air supply system is preferably arranged on the car body.

[0030] This ensures that the air conditioning and air supply system is located where the least dust is generated and can draw in outside air directly from the roof area. Furthermore, the positioning of the air conditioning and air supply system in the roof area ensures that the available space is utilized in this way.

[0031] Furthermore, it can be provided that the unit is arranged below the vehicle interior, preferably in the underfloor area. This ensures that the unit is located at a location that gives the rail vehicle a low center of gravity. Furthermore, if the air conditioning and air supply system is located in the roof area, air flow through the vehicle interior from top to bottom can be achieved.

[0032] In a further development of the rail vehicle, it can be provided that no filter is located between the vehicle interior and the unit. Thus, the air from the vehicle interior is fed directly to the unit without further filtering or conditioning.

[0033] This keeps the equipment costs and maintenance costs to a minimum.

[0034] Alternatively, in a further development of the rail vehicle, an additional sand or dust filter can be arranged between the vehicle interior and the unit. This additional sand or dust filter can be designed, for example, as a fine filter or a filter mat. This provides a low-cost and / or low-maintenance means of supplying additional filtered air to the unit.

[0035] In a design of the rail vehicle, it can further be provided that the at least one unit is assigned an outside air supply device arranged in the region of the unit, via which outside air from the environment of the unit can be supplied to the at least one unit for cooling, preferably in addition to the air in the vehicle interior.

[0036] If the required air volume flow of the unit is temporarily or permanently ( e.g. in the case of traction engine cooling) greater than the volume flow emitted from the vehicle interior (exhaust air from the air conditioning and air supply system), this can be used proportionally as intake air and thus at least reduces the particle input and thus the load on the unit.

[0037] The invention will now be explained using exemplary embodiments with reference to the drawings.

[0038] It shows :

[0039] Fig. 1 shows a schematic representation of a rail vehicle according to the invention with an air conditioning and air supply system according to a first embodiment; and

[0040] Fig. 2 shows a schematic representation of a rail vehicle according to the invention with an air conditioning and air supply system according to the second first embodiment.

[0041] Fig. 1 shows a schematic representation of a rail vehicle 1 according to the invention with an air conditioning and air supply system 100 according to a first embodiment.

[0042] The rail vehicle 1 comprises at least one vehicle interior 10 and an air conditioning and air supply system 100 for the vehicle interior 10.

[0043] The air conditioning and air supply system 100 has an intake 110 for supplying outside air into the vehicle interior 10.

[0044] The rail vehicle further comprises at least one unit 200.

[0045] According to Fig. 1, the at least one unit 200 is arranged outside the vehicle interior 10, but can alternatively or additionally be / include a unit 200 arranged within the vehicle interior 10. As can be seen from Fig. 1, the rail vehicle 1 is designed to supply the unit 200 with air from the vehicle interior 10.

[0046] According to Fig. 1, the rail vehicle has an air supply device 300 which is designed such that it supplies the unit 200 with air from the vehicle interior 10.

[0047] According to Fig. 1, a carriage of the rail vehicle 1 is shown as an example. The carriage body 40 has the vehicle interior 10.

[0048] Furthermore, the air supply device 300 has an exhaust air unit 310 which draws in air from the vehicle interior 10 and supplies it to the unit 200.

[0049] The air conditioning and air supply system 100 has at least one air conditioning device 120 for conditioning the outside air to be supplied to the vehicle interior 10. The air conditioning device 120 is designed to condition the outside air with respect to temperature and / or humidity before it is supplied to the vehicle interior 10.

[0050] Furthermore, the air conditioning and air supply system 100 has at least one sand and dust filter system 130 for filtering the outside air taken in.

[0051] Furthermore, the air conditioning and air supply system 100 may have an outlet 140 which is designed to return a portion of the air sucked in by the intake 110 to the

[0052] environment.

[0053] The air conditioning and air supply system 100 is arranged above the vehicle interior 10. In particular, the air conditioning and air supply system 100 is arranged on the car body 40 in the roof area, as shown in Fig. 1. The air conditioning and air supply system 100 includes the intake 110, the air conditioning device 120, the sand and dust filter system 130, and the outlet 140, which are arranged above the vehicle interior 10.

[0054] The unit 200 is arranged below the vehicle interior 100, preferably in the underfloor area 20.

[0055] No filter is arranged between the vehicle interior 10 and the unit 200. Instead, the air from the vehicle interior is fed directly to the unit.

[0056] Fig. 2 shows a schematic representation of a rail vehicle 1 according to the invention with an air conditioning and air supply system 100 according to the second embodiment. The rail vehicle 1 of the second embodiment is based on the first embodiment, with essentially only the differences between the second embodiment and the first embodiment being explained below.

[0057] As can be seen from Fig. 2, the rail vehicle 1 according to the second embodiment, like the rail vehicle 1 of the first embodiment (cf. Fig. 1), is designed to supply the unit 200 with air from the vehicle interior 100. The unit 200 is assigned an outside air supply device 400 arranged in the region of the unit, via which outside air from the environment of the unit 200 can be supplied to the unit 200 for cooling. The outside air supply device 400 can be operated on demand, so that the outside air supply device 400 can be switched on when the volume flow of air from the vehicle interior 10 is insufficient.

Claims

Patent claims 1. Rail vehicle (1), comprising at least one vehicle interior (10), an air conditioning and air supply system (100) for the vehicle interior (10) with an intake (110) for supplying outside air into the vehicle interior (10), and at least one unit (200), characterized in that the rail vehicle (1) is designed to supply the unit (200) with air from the vehicle interior (10).

2. Rail vehicle (1) according to claim 1, characterized in that the at least one unit (200) is a unit (200) arranged outside the vehicle interior (10).

3. Rail vehicle (1) according to claim 1 or 2, characterized in that the at least one unit (200) is a unit (200) arranged within the vehicle interior (10).

4. Rail vehicle (1) according to one of claims 1 to 3, characterized in that the rail vehicle (1) has an air supply device (300) which is designed such that it supplies the unit (200) with air from the vehicle interior (10).

5. Rail vehicle (1) according to one of claims 1 to 4, characterized in that the air supply device (300) has an exhaust air unit (310) which is designed to suck in air from the vehicle interior (10) and to supply it to the unit (200).

6. Rail vehicle (1) according to one of the preceding claims, characterized in that the air conditioning and air supply system (100) comprises at least one Air conditioning device (120) for conditioning the outside air to be supplied to the vehicle interior (10).

7. Rail vehicle (1) according to one of the preceding claims, characterized in that the air conditioning and air supply system (100) has at least one sand and dust filter system (130) for filtering the outside air taken in.

8. Rail vehicle (1) according to one of the preceding claims, characterized in that the air conditioning and air supply system (100) is arranged above the vehicle interior (10).

9. Rail vehicle (1) according to one of the preceding claims, characterized in that the unit (200) is arranged below the vehicle interior (100), preferably in the underfloor area (20).

10. Rail vehicle (1) according to one of the preceding claims, characterized in that no filter is arranged between the vehicle interior (10) and the unit (200).

11. Rail vehicle (1) according to one of the preceding claims, characterized in that an additional sand or dust filter is arranged between the vehicle interior (10) and the unit (200).

12. Rail vehicle (1) according to one of the preceding claims, characterized in that the unit (200) is assigned an outside air supply device (400) arranged in the region of the unit (200), via which outside air from the environment of the unit (200) can be supplied to the unit (200) for cooling, preferably in addition to the air on the vehicle interior (10).

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