EP2744696A1

EP2744696A1 - Controlled-route vehicle, in particular train, with improved air intake

Info

Publication number: EP2744696A1
Application number: EP12773275.8A
Authority: EP
Inventors: Arnd RÜTER
Original assignee: Siemens AG
Current assignee: Siemens AG
Priority date: 2011-10-14
Filing date: 2012-09-27
Publication date: 2014-06-25
Also published as: DE102011084490A1; CA2851911A1; WO2013053602A1; US20140235155A1; CN204150048U

Abstract

The invention relates to a controlled-route vehicle, in particular a train, having at least one air passage (24) which is arranged in a wall (16) of the controlled-route vehicle. The air passage (24) has an inlet opening (28) for letting air into the air passage (24), wherein the inlet opening (28) is arranged in an outer side (26) of the wall (16), an outlet opening (32), through which the air can be let out into an interior of the controlled-route vehicle, wherein the outlet opening (32) is arranged in an inner side (30) of the wall (16), and a section (46) which tapers in the direction of the outlet opening (32) and is formed by an inner wall side (33) of the wall (16). As a result, improved transport of the air into the interior of the controlled-route vehicle (10) can be achieved in a structurally simple and inexpensive manner.

Description

description

Off-road vehicle, especially train, with improved air intake

The invention relates to a road-bound vehicle,

especially a train.

In the following, without limitation of generality, reference will be made to a high speed train having a cooling air passage.

It is known in the art that cooling air passages are incorporated in a wall of a high-speed train to cool air from the outside into an interior of a below a

Outside wall of the high-speed train arranged

Initiate cooling system. For example, the cooling system may be disposed on a roof wall of a passenger compartment provided below the outer wall of the high-speed train that limits the cooling system. The cooling air passage may, for example, have an oblong cross-section as seen along the wall for sucking in the cooling air from the outside into the interior of the high-speed train. In this case, the longitudinal direction of the cooling air passage transversely to a

Be oriented longitudinally of the high-speed train, so that the longitudinal direction of the cooling air passage is transverse to a direction of travel of the high-speed train. Such a configuration and arrangement of

Cooling air passage can provide sufficient inflow of the cooling air into an interior of the high-speed train

accomplish when the bullet train is stationary.

However, the inflow of the cooling air through the

Cooling air passage with a movement of the

High speed train, so while driving the

High-speed train, to be inadequate.

It is also known that the cooling air passage may be incorporated in the wall such that the longitudinal direction of the Cooling air passage in the longitudinal direction of

High-speed train is oriented to allow a transport of the cooling air into the interior of the high-speed train. However, such a cooling air passage may also result in insufficient air intake of the cooling air during travel of the high-speed train.

It is therefore an object of the invention to provide a road-bound vehicle, in particular a train, which provides an improved transport of air into an interior of a

weggebundenen vehicle constructively simple and inexpensive.

This task is performed by a tied vehicle,

in particular a train, according to the independent claims.

According to an exemplary aspect of the invention, there is provided a ground-bound vehicle, in particular a train, having at least one air passage disposed in a wall of the ground-bound vehicle, wherein the

Air passage an inlet port for introducing air into the air passage, wherein the inlet opening in a

Outside of the wall is arranged, and has an outlet opening through which the air is discharged into an interior of the weggebundenen vehicle, wherein the outlet opening is disposed in an inner side of the wall, wherein a protective grid is at least partially disposed within the air passage, in the longitudinal direction of the elongated air passage is formed curved inwardly substantially.

According to a further exemplary aspect of the invention is a road-bound vehicle, in particular a train,

provided with at least one air passage, which is arranged in a wall of the weggebundenen vehicle, wherein the air passage has an inlet opening for introducing air into the air passage, wherein the inlet opening in a

Outside of the wall is arranged, an outlet opening, by which the air can be discharged into an interior of the path-bound vehicle, wherein the outlet opening is arranged in an inner side of the wall, and in the direction of the

Outlet opening has tapered portion which is formed by an inner wall side of the wall.

In the context of this application, the term "lane-bound vehicle" may refer to a vehicle fixed in its direction of travel, in particular, the vehicle may be (exclusively) bi-directionally movable

Be oriented or run along the direction of travel of the path-bound vehicle along its direction of travel.

The term "direction of travel" of the path-bound vehicle can in particular be a direction of movement of the path-bound vehicle

Designate the vehicle towards a

air-flow side of the path-bound vehicle may have. In particular, the direction of travel leading to the

Air side of the path bound vehicle may point towards an occupied driver's cab

directionally bound vehicle or in a direction to an end of the path bound vehicle, which may be arranged opposite to the occupied driver's cab end opposite.

The term "interior of the tied vehicle"

in particular an interior of a passenger compartment of the

a bound vehicle or an interior of an adjacent to an outer wall of the path bound vehicle system. The example box-shaped system can be flush with the outer wall of the weggebundenen

Vehicle integrated. In particular, the interior of the system may be connected to or disconnected from the passenger compartment of the lane-bound vehicle. For example, the passage of air may be with an interior of one within a

External wall arranged air transport system to be connected, the at least one channel and / or at least one fan and may be separated from a passenger compartment of the lane-bound vehicle.

The term "page of an element" may in particular

outer surface of the element and / or an outer

Designate edge portion of the element.

The term "essentially" can be largely or

mostly mean. In particular, a majority of the protective grid and the tapered section may be curved inwards.

Due to an interaction between an airflow to be transported into the interior of the lane-bound vehicle and an airflow around the bound vehicle

In particular, during its journey an aerodynamic back pressure in the area of the air passage can occur, which sucked into the air passage and thus by the

Air passage can reduce transportable air volume. The back pressure can be particularly in the range of in the

Direction of travel of the weggebundenen vehicle front portion of the air passage be so large that an intake effect of the air passage may be small. Adjacent to and in a central portion of the air passage, the

Back pressure lower than in the front section of the

Air passage, while the aerodynamic back pressure adjacent to and in the rear in the direction of travel

Section of the air passage may be minimal, so that the air can easily flow into the air passage.

Both the inwardly curved grille and the portion of the air passageway tapering into the interior of the tied-down vehicle can create a pressure-assisting or neutral pressure situation in the region of the air passage that facilitates the transport of air

Air circulation of the path bound vehicle and to

transporting airflow occurring aerodynamic

Counterpressure adjacent to the front in the direction of travel and / or middle section of the air passage and the air flow in the region of the rearward portion of the air passage may be low in the direction of travel. In particular, by the inwardly curved protective grille a

Homogenization of the air outflow of the air passage can be achieved, so that the back pressure in the range of

Air passage can be reduced. Therefore, can on

constructively simple way into the interior of the

transportable air volume

be significantly increased.

Due to the air inflow supporting

Printing situation can be a size and / or capacity of

Fans are reduced in the interior of the path-bound vehicle in flow coupling with the

Air passage may be arranged and adapted to suck the air transported through the air passage and forward. In particular, at least a part of the fans can be switched off, since the suction effect of the air passage can be sufficient for transporting the air flow. The one or more

Fans generated delivery pressure can thus be reduced, so that an energy expenditure for the same

transporting air quantity can be reduced.

In particular, for a power supply of

Fans used auxiliary converters be made smaller and lighter or be switched off. Overall, therefore, manufacturing, maintenance and upkeep costs of the tied vehicle can be low, especially since the

Air inflow supporting pressure situation of the

Air passage can be accomplished without additional components.

The following are embodiments of the path-bound

Vehicle according to the exemplary aspect of the invention described. These also apply to the road-bound vehicle according to the further exemplary aspect of the invention. In particular, trained as a train tied away

Vehicle be designed as a high-speed train. The term "high-speed train" can be understood in particular to mean a train that is essentially smooth

extending outer surface, so a step-free outer surface may have. In particular, the

High speed train an Intercity Express (ICE),

for example, an ICE 1, ICE 2 or an ICx, or a

Be Eurostar.

Alternatively, the tied vehicle as

Magnetic levitation railway or be designed as Luftkissenschwebebahn. In particular, the protective grid with an inner

Connected wall side of the wall, which can limit the air passage and thus form. For example, the protective grid may be arranged in an inner contour of the inlet opening, which may be provided in the outer side of the wall, or in an inner contour of the outlet opening and / or be firmly connected to the inside of the wall

can be arranged.

In particular, the protective grid can be arranged flush with the outside when viewed from the outside. In particular, the protective grille can be arranged completely inside the air passage or protrude from the cooling air passage into the interior of the path-bound vehicle. The following are embodiments of the path-bound

Vehicle according to the further exemplary aspect of

Invention described. These also apply to the bound vehicle according to the exemplary aspect of the invention. In particular, the tapered portion may be disposed between the inlet port and the outlet port. The inner wall side may have a flat or planar portion extending transversely to a longitudinal direction of the bound vehicle, angled with respect to the outside of the wall, in particular at an obtuse angle

angled, arranged. The obtuse angle may be measured counterclockwise from an outside of the wall through the wall in the direction of the air passage. In particular, the obtuse angle may be at least about 165 °, at least about 170 °, at least about 175 °. This allows the passage of air in the region of the section to be ramp-shaped, in order to achieve a good one

Air intake of the air passage to ensure.

In particular, the air flowing around the tied-down vehicle has to travel during a movement of the tied-down vehicle due to the low inclination of the section along it

Flow direction are only slightly deflected.

Alternatively or additionally, the inner wall side may have a transversely to a longitudinal direction of the path bound vehicle extending portion which may be curved. The term "curved" portion of the inner wall side may in particular a portion of the inner

Designate wall side, seen in cross section slope may be different at different section points or section areas. As a result, the air passage can have such an inlet geometry, which is an inflow of the air into the interior of the path-bound vehicle

can favor and reduce the back pressure in the area of the air passage, so that through the air passage

transportable air quantity can be significantly increased in a constructive simple manner.

In particular, the angled portion and / or the curved portion may be integrally formed.

The plane and / or curved portion may, in particular, in the longitudinal direction of the path-bound vehicle and in the

Driving direction front section of the inner wall side or the rear portion of the inner in the longitudinal direction of the tied-away vehicle and the same direction of travel

Be wall side. In particular, the others can

Extend portions of the inner wall side adjacent to the tapered portion of the air passage transversely, in particular perpendicular, to the outside and / or inside of the wall to form the tapered portion.

In particular, in the longitudinal direction of the

weggebundenen vehicle and in the direction of travel front and rear portion of the inner wall side with respect to the

Outside angled and / or curved be formed. The seen in both directions of travel of the path-bound vehicle each front portion of the inner wall side can thus be tapered inwardly and angled or curved with respect to the outside, so that always in the range of in

Direction of travel front end portion of the air passage occurring back pressure can be reduced. In particular, the angled portion adjacent to the inlet opening and the curved portion may be disposed adjacent to the outlet opening.

The (front and / or rear) curved portion may be formed to be curved outwardly substantially so that the substantially outer surface of the inner wall side may be directed substantially outward. In the case of an exclusively outwardly directed curvature, the outer surface of the wall can be rounded in particular. These

Surface shape of the wall adjacent to the tapered

Section of the air passage can be improved

Provide suction of the air passage, since the air flowing around the path bound vehicle must be deflected only slightly when driving the weggebundenen vehicle along its flow direction. In particular, an edge portion of the (front and / or rear) portion of the inner wall side and / or a middle Intermediate portion of the portion of the inner wall side to be curved inwardly.

In particular, the substantially outwardly curved portion of the inner wall side or the entire, the

Air passage forming inner wall side completely inside the air passage, so be arranged between the inlet opening and the outlet opening. In particular, the planar and / or curved portion of the inner wall side or the entire inner wall side, which may form the air passage, a metal alloy, in particular steel, or glass fiber reinforced plastic (GRP) have, or be made thereof. The section or the inner wall side may in particular be formed in one piece. In particular, these materials make it possible to produce a weatherproof, cost-effective and sufficiently rigid inner wall side.

The inner wall side may comprise or be formed at least in the region of the portion a plurality of contiguous fins, each lamella of the plurality of fins in the transverse direction of the tied away vehicle elongated and on a longitudinal side of the fins with a further, different lamella of the plurality of Slats can be connected. In particular, each lamella may be formed flat or at least one lamella of the plurality of lamellae may be formed substantially outwardly or substantially inwardly curved. This measure can represent a particularly simple and cost-effective production of a curved inner wall side to one for the

Air inflow supporting pressure situation to create.

In particular, each lamella of the plurality of lamellae may comprise a metal alloy, in particular steel, or glass fiber plastic, or may be made thereof, for example, as sheet metal or

Be made of glass fiber plastic strips. Alternatively or additionally, each lamella of the plurality of fins as Cast component be formed. Each lamella can be welded to an adjacent lamella.

In particular, the wall may comprise or be made of metal, in particular aluminum, or a metal alloy, in particular steel.

In particular, the multiplicity of lamellae can be formed in one piece and manufactured, for example, as a folded sheet metal or as a cast component.

A curvature of the curved portion of the inner wall side may be uniform. The term "uniform curvature of the portion of the inner wall side" may in particular designate a step-free or non-jamming curvature of the inner wall side, in particular the inner wall side may be formed by means of an integral component, for example a one-piece sheet and / or as a cast component inner wall side may be formed by a sufficiently large number of fins of the plurality of fins, so that the uniform curvature of the portion can be approximated by means of the many fins.

The curvature of the angled and / or curved portion of the inner wall side may be adjustable. In particular, the just ausgestalte section between the plane

Design and a substantially inwardly curved configuration be changeable. In this way, a suction effect of the air passage situations and

be adapted to a required amount of air as needed. This can be achieved by means of a greater flexing or flattening of the portion of the inner wall side. For this purpose, the portion may be at least partially made of a plastically deformable material and / or an increase in surface area of the portion, which may occur at a greater deflection of the portion (or parts thereof), by the plastically deformable material and / or by a Accordion-like unfolding of the section (or parts of it). In the embodiment of the portion of the inner wall side with a plurality of fins, a relative

Arrangement of the slats to each other and / or a curvature of the individual slats be adjustable. This can be done in

Dependence of a vehicle speed of the path-bound vehicle and / or an air requirement, the Einsaugverhalten the air passage can be inexpensively and easily changed to set a quantity of transported air situation- and / or demand-dependent.

In particular, at least the portion of the inner

Wall side of the plastically deformable material and the

Metal alloy and / or the glass fiber plastic.

A protective grid can be placed inside the outlet opening of the

Be arranged air passage. In particular, that can

Protective grating by means of two outer struts and transverse, in particular perpendicular, be formed to the struts extending connecting portions, which are the two

can connect lateral struts with each other. The two lateral struts can be realized in particular by means of a strip-shaped sheet metal. The

Connection sections can in particular be made as (thin-walled or solid) tubes or round bars. Additionally or alternatively, the protective grid may have two transverse struts, which may be formed as strip-shaped plates and connected to the inner wall side. In particular, the protective grid can

air-permeable area of the outlet opening certain, in particular reduce, so that an air outflow of air from the air passage into the interior of the path-bound

Vehicle can be homogenized. As a result, despite a reduced air-permeable cross-section of the

Outlet opening be increased by the air passage transportable amount of air. The protective grid can be flat. In particular, the protective grid along the longitudinal direction of the

weggebundenen vehicle be arranged. The level

The design of the air passage may have a particularly easily predictable air outflow of the air passage to the arrangement of the air passage in the wall optimally

to be able to select.

The protective grid may be formed in the longitudinal direction of the path-bound vehicle substantially inwardly curved. The inwardly curved grille, as shown above, increase the suction effect of the air passage, so that the transport of the air can be increased in the interior of the path bound vehicle. In particular, a

End portion of the protective grid, which may be located adjacent to the inner wall side, curved outwards

be formed while a middle section of the

Protective grating, which may be the major part of the protective grid, inwardly curved - in particular with a changing curvature - may be.

In particular, a curvature of the protective grid can be adjustable. This embodiment can be provided both in a flat protective grid and in a curved protective grid. In particular, the newly ausgestalte

Protective grid between the planar configuration and a substantially inwardly curved configuration to be changeable. In this way, a suction effect of the

Protective grille within the air passage situation and need to be adaptable to a required amount of air. In one embodiment of the protective grid by means of blechartiger lateral and / or transverse

Struts and tube-like connecting portions may be at a change in curvature of the protective grid, a form of

Connecting pipes remain unchanged while a

Deflection of the sheet-like efforts can be adjustable. In this case, a position of the connecting portions with respect to an original deflection of the Change page sections. For this purpose, the

sheet-like struts foldable formed and / or be made by means of a plastically deformable material.

The air passage may be a quadratic or an elongate, as seen in particular along the longitudinal direction or the transverse direction of the path-bound vehicle.

in particular rectangular, have cross-section. The

Transverse direction may correspond in particular to a height direction of the path-bound vehicle, which may be measured between an underfloor wall of the path-bound vehicle and a roof wall of the lane-bound vehicle, or a width direction, which may in particular be measured along a floor. Thus, such air passages a good

Air intake show that can be achieved in particular by the tapered shape or by the protective grid. In particular, a longitudinal direction of the air passage of the longitudinal direction of the path-bound vehicle, so the

Direction of travel of the path-bound vehicle, correspond. A first transverse direction of the air passage, in particular a width direction of the air passage, then the

Width direction or the height direction of the path-bound vehicle correspond, and a second transverse direction of the

Air passage, in particular a depth direction of the

Air passage, can be a thickness direction of the wall

correspond .

Alternatively, in particular, a longitudinal direction of the

Air passage transverse to the longitudinal direction of the weggebundenen

Vehicle, ie transverse to the direction of travel of the path-bound vehicle, ie along the height direction or the

Width direction of the path bound vehicle run. A first transverse direction of the air passage, in particular a width direction of the air passage, then the

Corresponding longitudinal direction of the path-bound vehicle, and a second transverse direction of the air passage, in particular a depth direction of the air passage, one can

Thickness direction of the wall correspond.

The air passage can as a cooling air passage or as

Be set up fresh air passage. In particular, cooling air transportable by the cooling air passage may be used to supply a cooling system for one or more motors or for electronic devices. In particular, fresh air transported through the fresh air passage may be used to supply air to passengers of the bound vehicle or to an internal combustion engine of the off-highway vehicle.

The wall may be an underfloor wall of the tied vehicle, a roof wall of the tied vehicle or a

Be sidewall of the path bound vehicle, wherein

in particular, the air passage arranged in the side wall may be arranged adjacent to the underfloor wall of the tied vehicle or the roof wall of the path bound. This allows the passage of air in conjunction with existing air ducts of the tied vehicle adjacent to the underfloor wall or the roof wall of the vehicle

be used, so that additional development costs for an air passage having air system of the path-bound vehicle can be avoided.

In particular, a width of the air passage measured in the first transverse direction, that is to say in the width direction, of the air passage may in particular be at least about 1/20, in particular at least about 1/15, in particular at least about 1/10

and / or in particular at most approximately 1/8, in particular at most approximately 1/6, in particular at most approximately 1/4 of a length of the air passage measured in the longitudinal direction of the air passage. These embodiments apply to both the air passage, the longitudinal direction along the longitudinal direction of the path-bound vehicle or along the transverse direction of the path-bound vehicle.

In particular, a depth of the air passage measured in the second transverse direction, ie in the depth direction, of the air passage can be at least approximately 1/1000,

in particular at least about 1/200, in particular at least about 1/100 and / or in particular at most about 1/10,

in particular at most about 1/8, in particular at most about 1/5 of a measured in the longitudinal direction of the air passage length of the air passage.

In particular, the bound vehicle may include a plurality of air passages that may be in accordance with one or more embodiments of the above described air passage according to one exemplary aspect and / or the other

exemplary aspect of the invention can be configured. In particular, the air passages of the plurality of air passages may be arranged in a row that may run along the longitudinal direction of the path-bound vehicle.

The invention will now be described by way of example with reference to the accompanying drawings, in which the features shown below may represent an aspect of the invention both individually and in combination. Show it:

Fig. 1 is a schematic perspective view of a high speed train according to an embodiment of the invention.

Fig. 2 is a schematic perspective view of a side wall of the high-speed train in Fig. 1, in which a first cooling air passage is introduced.

Fig. 3 is a schematic perspective view of

Side wall in Fig. 1, in which a second cooling air passage is introduced. Fig. 4 is a schematic perspective view of

Side wall in Fig. 1, in which a third cooling air passage is introduced.

In Fig. 1, a high-speed train 10 according to an embodiment of the invention of the type ICE 2 is shown, which has a train section 12 with a occupied driver's seat and at least one car 14. In a side wall 16 of the carriage 14 are adjacent to a roof wall 18 of the

Waggons 14, a first cooling air passage 20 and adjacent to an underfloor wall 22 of the carriage 14, a second

Cooling air passage 24 and a third cooling air passage 25 arranged. The cooling air passage 24 is in a

Direction of travel of the high-speed train 10 seen before the cooling air passage 25 and arranged in a middle

Section of the side wall 16 of the car 14 is introduced, while the cooling air passage 25 is provided in a rear end portion of the side wall 16 in the direction of travel. Each cooling air passage 20, 24, 25 is connected via a channel to a plurality of fans, which are arranged in the channel and can be supplied with energy by means of an auxiliary converter. Associated cooling air systems of

High speed train 10 are shown in Fig. 1 by means of

indicated by dashed lines, both of one

Passenger interior of high speed train 10

air flow separated, but flush with an outer wall of the high speed train 10 are integrated. The cooling air passage 20 is formed as a square through the wall 16 passing hole. The cooling air passages 24, 25 are formed as in a longitudinal direction of the carriage 14 elongated, passing through the wall 16 slot. A longitudinal direction of each cooling air passage 24, 25 is in the direction of travel of

High speed train 10 measured and corresponds to the longitudinal direction of the high speed train 10, a

Width direction of each cooling air passage 24, 25 is in one Height direction between the roof wall 18 and the underfloor wall 22 measured and a depth direction of the cooling air passage 20, 24, 25 is measured along a wall thickness of the side wall 16 of the car 14. A cross section of the cooling air passage 20 along the longitudinal direction of the side wall 16 is square along the entire depth of the cooling air passage 20, and a cross section of the cooling air passages 24, 25 along the longitudinal direction of the side wall 16 is formed rectangular along the entire depth of the cooling air passages 24, 25.

The cooling air passage 20 is 20 centimeters long, 20

Inches wide and 0.2 inches deep. Of the

Cooling air passage 24 is 10 inches long, 1.5 inches wide, and 0.05 inches deep. The cooling air passage 25 is 5 inches long, 0.25 inches wide and 1 inch deep.

Fig. 2 shows the cooling air passage 20 in an enlarged view. In an outer side 26 of the side wall 16 is an inlet opening 28 for admitting the cooling air in the

Cooling air passage 20 introduced. In an inner side 30 of the side wall 16, an outlet opening 32 is introduced, through which the cooling air can be discharged into an interior of the associated cooling system of the high speed train 10. An inner wall side 33 of the side wall 16 has four sections 34 a - d, which each extend perpendicular to the outer side 26 and the inner side 30 of the side wall 16. The cross section of the cooling air passage 20 defined along the longitudinal direction is substantially equal when viewed along its depth direction.

A protective grid 36 is disposed within the air cooling passage 20 and along the longitudinal direction of the

Air cooling passage 20 seen largely curved towards the interior of the high-speed train 10. The

Guard 36 has a frame 38, the two in

Lateral side struts 40a, b extending in the longitudinal direction of the cooling air passage 20 and in the width direction of the Cooling air passage 20 extending connecting elements 42, each having the two struts 40a, b

connect with each other. For the sake of clarity, only one connecting element is provided with the reference number 42 in FIG. The lateral braces 40a, b are formed as strip-shaped sheets and the

Connecting sections 42 are as solid rods

educated. The connecting elements 42 arranged in the longitudinal direction at the outermost edge of the protective grid 36 are in the region of the inlet opening 28 with the side wall 16

connected. The curvature of the protective grid 36 is uniform, so without jumps, and the guard 36 has in

Essentially a semi-ellipse-like shape. In the

Longitudinal direction of the cooling air passage 20 seen

Edge portions 44a, b of the protective grid 36 are curved outwards and a central portion 45 of the

Protective grille is curved towards the interior. The

Edge sections 44a, b are in this case arranged by the connecting sections 42 connected to the inner wall 33 and the connecting sections 42 arranged adjacently thereto and by adjacent to the inner wall side 43a, c

End portions of the lateral struts 40a, b formed. The end portions of the lateral braces 40a, b

extend tangentially with respect to the outside 26 of the wall 16 and extend toward the interior in a generally outwardly directed curvature. The middle one

Section 45 of the protective grid 36 is formed by the remaining connecting sections 42 and middle sections 40 a, b of the protective grid 36. The curvature of the middle

Section 45 changes uniformly and takes an amount in the longitudinal direction of the cooling air passage

seen center of the protective grid 36 from.

Alternatively, the protective grid 36 may be connected to the outlet opening 32 of the cooling air passage 20 and / or extend outside the cooling air passage 20 into the interior of the channel. The protective grid 36 can also

be formed curved inwardly only. Fig. 3 shows the cooling air passage 24 in Fig. 1 in an enlarged view. The cooling air passage 24 is configured similarly to the cooling air passage 20 in FIG. 2, however, portions 34a, c of an inner wall 33 of the side wall 16 are curved outwardly. In

Longitudinal direction of the cooling air passage 24 extending

Portions 34 b, d of the inner wall 33 extend perpendicular to the outer side 26 and the inner side 30 of the side wall 16. Thus, the cooling air passage 24 has a tapered portion 46 between the inlet 28 and the outlet 32 of the cooling air passage 24. The longitudinal cross-section of the

Cooling air passage 24 decreases along its depth direction into the interior of the high speed train 10 seen. The guard 36 is connected to the portions 34 a, c of the inner wall 33 which define the outlet 32, and configured similarly to the guard 36 of FIG. 2. However, the curvature of the protective grid 36 is such that the protective grid 36 is designed to be curved inwardly only and projects into the interior. Edge regions 44a, b of the protective grid 36 extend below a

Angle of about 20 degrees to the inside 30 of the wall 16. Alternatively, the protective grid can be identical to the

Guard 36 may be configured in Fig. 2. It is also possible that the protective grid 36 is planar.

Fig. 4 shows the cooling air passage 25 of Fig. 1 in an enlarged view, which is similar to the

Cooling air passage 24 is configured in Fig. 3. However, extending transversely to the longitudinal direction of the cooling air passage 25 extending portions 34 a, c of the inner wall 33 of the side wall of the cooling air passage 25 of three each transverse to the longitudinal extent of the cooling air passage 25th

extending and continuous lamellae 48a-f are formed, which are realized as elongated portions of a steel sheet. Each of the fins 48a-f is planar, and one Curvature of the sections 34a, c is consequently not uniform, but has two steps along the surface of the inner wall side 34a, c. Furthermore, the plastically deformable lamellae 48a-f are designed such that they can be driven electrically in such a way that a relative position of the lamellae 48a-f and a curvature of each lamella can be changed over their deflection to the outside. As a result, the curvature of the sections 34a, c of the inner wall 33 is dependent on

adjustable transporting cooling air flow. An inside of an outlet opening 32 of the cooling air passage 20th

arranged protective grid 36 is similar to the protective grid 36 in Fig. 3 configured. However, the guard 36 is flat and thus has no inward curvature.

Alternatively, the guard may be identical to the

Guard 36 may be configured in Fig. 2 or of Fig. 3.

In addition, it should be understood that "having" does not preclude other elements or steps, and the use of the article "a" or "an" does not exclude a multitude. "Further, it should be noted that features or steps described with reference to one of the above embodiments also in combination with other features or steps of others described above

Embodiments can be used. Reference signs in the claims are not to be considered as limiting.

Claims

claims

1. Weggebundenes vehicle (10), in particular train, with

at least one air passage (20, 24, 25) disposed in a wall (16) of the path bound vehicle (10), the air passage (20, 24, 25) comprising:

an inlet port (28) for introducing air into the air passage (20, 24, 25), the inlet port (28) being disposed in an outer side (26) of the wall (16), and

- An outlet opening (32) through which the air in an interior of the weggebundenen vehicle (10) can be discharged, wherein the outlet opening (32) in an inner side (30) of the wall (16) is arranged, and

wherein a protective grid (36) is arranged at least partially within the air passage (20, 24, 25), which in

Longitudinal direction of the path bound vehicle (10) in

Is formed substantially inwardly curved.

2. Weggebundenes vehicle (10), in particular train, with

at least one air passage (20, 24, 25) in a wall

(16) of the bound vehicle (10), wherein the air passage (20, 24, 25) comprises:

an inlet port (28) for admitting air into the

Air passage (20, 24, 25), wherein the inlet opening (28) in an outer side (26) of the wall (16) is arranged,

an outlet opening (32) through which the air in a

Inside the path bound vehicle (10) can be discharged, wherein the outlet opening (32) in an inner side (30) of the

Wall (16) is arranged, and

- one in the direction of the outlet opening (32)

tapered section (46), passing through an inner wall side

(33) of the wall (16) is formed.

3. A bonded vehicle (10) according to claim 2, wherein the inner wall side (3) has a transversely to a longitudinal direction of the weggebundenen vehicle (10) extending flat portion with respect to the outer side (26) of the wall (16) angled, in particular below an obtuse angle

angled, arranged.

4. A tied vehicle (10) according to claim 2 or 3, wherein the inner wall side (33) has a transversely to a longitudinal direction of the path bound vehicle (10) extending portion (34 a, c) which is curved.

5. A bound vehicle (10) according to claim 4, wherein the curved portion (34 a, c) is formed curved substantially outwardly.

6. Weggebundenes vehicle (10) according to any one of claims 3 to

5, wherein the inner wall side (33) at least in the region of the portion (34 a, c) a plurality of contiguous

Lamination (48a-f), wherein each lamella (48a-f) of the plurality of lamellae (48a-f) in the transverse direction of

lane-bound vehicle (10) elongated and on one longitudinal side of the lamella (48a-f) with another

Blade (48a-f) of the plurality of blades (48a-f) is connected.

7. Weggebundenes vehicle (10) according to any one of claims 4 to

6, wherein a curvature of the curved portion (34a, c) of the inner wall side (34a, c) is uniform.

8. Weggebundenes vehicle (10) according to any one of claims 3 to

7, wherein the curvature of the portion (34a, c) of the inner wall side (34a, c) is adjustable.

9. Weggebundenes vehicle (10) according to any one of claims 2 to 8, wherein a protective grid (36) within the

Outlet opening (32) of the air passage (20, 24, 25) is arranged.

10. Weggebundenes vehicle (10) according to claim 9, wherein the protective grid (36) is planar.

11. A road-bound vehicle (10) according to claim 9, wherein the protective grid (36) in the longitudinal direction of the path-bound vehicle (10) is formed curved substantially inwardly.

12. A road-bound vehicle (10) according to any one of claims 1, 10 or 11, wherein a curvature of the protective grid (36) is adjustable.

13. Weggebundenes vehicle (10) according to any one of claims 1 to 12, wherein the air passage (20, 24, 25) in the

Has substantially square or elongated, in particular rectangular, cross-section.

14. A road bound vehicle (10) according to any one of claims 1 to 13, wherein the air passage (20, 24, 25) as

Cooling air passage (20, 24, 25) or is set up as a fresh air passage.

15. A road-bound vehicle (10) according to any one of claims 1 to 14, wherein the wall (16) has an underfloor wall (22) of the path-bound vehicle (10), a roof wall (18) of the

lane bound vehicle (10) or a side wall (16) of the tied vehicle (10), wherein in particular in the side wall (16) arranged air passage (20, 24, 25) adjacent to the underfloor wall (22) of the weggebundenen

Vehicle (10) or the roof wall (18) of the weggebundenen

Vehicle (10) is arranged.