EP4526173A1 - Fahrzeug mit querschnittsreduktionsabschnitt - Google Patents
Fahrzeug mit querschnittsreduktionsabschnittInfo
- Publication number
- EP4526173A1 EP4526173A1 EP23745409.5A EP23745409A EP4526173A1 EP 4526173 A1 EP4526173 A1 EP 4526173A1 EP 23745409 A EP23745409 A EP 23745409A EP 4526173 A1 EP4526173 A1 EP 4526173A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- air
- cross
- flow
- air supply
- vehicle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D17/00—Construction details of vehicle bodies
- B61D17/04—Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures
- B61D17/20—Communication passages between coaches; Adaptation of coach ends therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D17/00—Construction details of vehicle bodies
- B61D17/04—Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures
- B61D17/20—Communication passages between coaches; Adaptation of coach ends therefor
- B61D17/22—Communication passages between coaches; Adaptation of coach ends therefor flexible, e.g. bellows
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D17/00—Construction details of vehicle bodies
- B61D17/02—Construction details of vehicle bodies reducing air resistance by modifying contour ; Constructional features for fast vehicles sustaining sudden variations of atmospheric pressure, e.g. when crossing in tunnels
Definitions
- the invention relates to vehicles that have at least one cross-sectional reduction section.
- Cross-section reduction sections are usually present in railway rail vehicles in intermediate car areas between cars that are coupled to one another.
- the invention is based on the object of improving a vehicle of the type described with regard to the fluidic design of the cross-section reduction section.
- At least one air guide element is arranged in the cross-sectional reduction section, which extends outwards along the transverse direction of the vehicle and effects an air flow guide of an air flow that has entered the cross-sectional reduction section while driving, in such a way that part of the air flow returns is guided from the inside to the outside and is thereby deflected diagonally downwards.
- the contaminated air can reach the roof area and contaminate air conditioning units, air supply slots and the like.
- the particle flow of sand and dust in the upper area of the vehicle can also leave the intermediate car area and pass through the side wall in the area of the side windows, which can lead to significant abrasion effects in the upper side and window area.
- the problem of contamination and abrasion is particularly relevant for modern local and long-distance trains that operate in desert areas.
- a significant advantage of the inventive design of the cross-sectional reduction section is that the air guide element according to the invention - at least in its area of influence - can be used to segment the cross-sectional reduction section, namely in such a way that an air flow that has reached the cross-sectional reduction section below the air guide element is directed back outwards and is guided at the bottom without it being able to pass through the air guide element in the vertical direction, at least not to a relevant extent.
- the air guide element is oriented obliquely downwards at least in its outer end region; With such a design, the air flow is directed downwards particularly efficiently.
- the air guide element is preferably arranged at the front end of the cross-section reduction section - viewed in the direction of travel.
- an air supply element is preferably arranged, the longitudinal direction of which runs vertically or at least predominantly vertically and whose outer contour causes a horizontal air flow supply into the cross-sectional reduction section when driving.
- the horizontal air flow supply causes or at least supports said air flow in the cross-sectional reduction section.
- the air supply element and the air guide element therefore preferably work together and together form a flow guide pair.
- the air guide element and the air supply element are preferably arranged at the front end of the cross-sectional reduction section - viewed in the direction of travel.
- the shape of the air supply element is preferably adapted to the contour of the vehicle in the side wall area, so that the longitudinal direction is generally not strictly vertical, but adapts to any curvatures of the side wall area.
- the air guide element is arranged in height in the middle region between the upper end of the air supply element and the lower end of the air supply element and the cross-sectional reduction section in an upper flow section with an upward flow direction of the air flow and in a lower one Flow section segmented with downward flow direction of the air flow.
- the air guide element is arranged in the area of the upper end of the air supply element or above it.
- the air supply element extends in height or in the vertical direction, preferably at most up to the middle of the cross-section reduction section.
- the vehicle preferably comprises two cars that are coupled together to form an intermediate car area.
- the intermediate carriage area preferably forms the cross-section reduction section.
- the air guide element is preferably arranged on an end face of one of the cars facing the intermediate car area.
- the air supply element is preferably formed by the shape of a side wall section of the same car adjacent to the intermediate car area.
- the air guide element and the air supply element are arranged on the front of the two cars - viewed in the direction of travel - and together form a front flow guide pair.
- the air guide element and the air supply element work together in an advantageous manner in such a way that the portion of the air flow supplied horizontally from the air guide element below the air guide element to the outside with a horizontally outwardly directed directional component and a vertical downward directional component is directed.
- At least two air-guiding elements are preferably arranged on at least one of the two coupled cars, preferably on the front car in the direction of travel, with the air-guiding elements being spatially separated from one another by the vehicle's central longitudinal axis.
- Each of the air guiding elements is preferably assigned an air supply element.
- the air duct described occurs due to the interaction of air guiding elements and associated air supply elements in an advantageous manner on each of the two sides of the vehicle, at least in the forward direction of travel.
- each of the two carriages coupled to one another each has a first air guide element and a first air supply element (i.e. a first flow guide pair) that interacts with the first air guide element, as well as a second air guide element and a second air guide element interacting second air supply guide element (i.e. a second flow guide pair), wherein the first air guide element and the first air supply element are separated from the second air guide element and the second air supply element by the center of the vehicle, in particular by a walkable car transition area located in the center of the vehicle.
- the air duct described occurs advantageously on each of the two sides of the vehicle, independent of the direction of travel, due to the interaction of air guiding elements and associated air supply elements.
- each of the cross-sectional reduction sections is each equipped with one or more air guiding elements and preferably also with one or more associated air supply elements, i.e. each with one or more flow guiding pairs.
- the air guiding element or elements are preferably channel-shaped.
- the air guiding element or elements are preferably each formed by a sheet metal part that has been bent several times.
- the air guiding elements can also be round bent parts, deep-drawn parts or extruded parts.
- the air guiding element or elements are preferably each attached to a car end face facing the intermediate car area and are preferably each held there by at least one holding element, which is attached to the top of the respective air guiding element and is fastened to the car front side above the air guiding element.
- the air supply element - viewed in cross section from above - preferably has a curved outer contour which is curved inwards in the direction of the cross-section reduction section (i.e. in the transverse direction of the vehicle) and through which Curvature causes a horizontal, stall-free deflection of the airstream into the cross-section reduction section.
- An optimal curvature of the air supply element with a view to a stall-free deflection of the airstream can be determined using computer simulations that take the maximum speed of the vehicle into account.
- the air supply element is preferably formed by an inwardly curved outer skin area of the vehicle.
- the air supply element is an extruded profile part, which preferably forms a body end part.
- an extruded profile part can, for example, be attached to the front side of the associated car and define or at least co-define the vehicle skin of the vehicle in the cross-sectional reduction section on the outside.
- the air supply element can be a curved, for example deep-drawn, sheet metal that is connected in one piece to the side wall or is formed as a separate part on the side wall or is attached to the front side of the associated carriage.
- the vehicle is preferably a local or long-distance rail vehicle; Alternatively, however, it can also be a different type of vehicle.
- the vehicle can be formed by a truck with a coupled trailer, a car with a coupled trailer or a train of trucks coupled together.
- FIG. 1 components of an exemplary embodiment of a rail vehicle according to the invention in a schematic cross section viewed from above, Fig. 2-3 in three-dimensional representations an advantageous design of guide and air supply elements,
- Figure 7 shows a third advantageous embodiment of the air supply elements
- Figure 8 components of a further exemplary embodiment of a rail vehicle according to the invention, again viewed in a schematic cross section from above.
- FIG. 1 shows a schematic cross-sectional representation from above of a front car 10, viewed in the forward direction of travel F, to which a rear car 20 is coupled.
- the two cars 10 and 20 form components of a rail vehicle 30, not shown, which can be, for example, a local or long-distance railway train.
- Figure 1 shows that the rail vehicle 30 has a reduced cross section in the intermediate car area between the two cars 10 and 20; The intermediate car area thus forms a cross-sectional reduction area 40 of the rail vehicle 30.
- a first air guide element 101 and a second air guide element 102 are attached to the end face 11 of the front car 10, which is located at the rear when viewed in the forward direction of travel F. Spatially, the two air guiding elements 101 and 102 are located on different sides of an accessible transition area 50, which connects the two cars 10 and 20.
- the accessible transition area 50 is spatially limited, for example, by a bellows 51.
- the first air guide element 101 is assigned a first air supply element 201, which is arranged on the right side (bottom in FIG. 1) of the cross-sectional reduction section 40, viewed in the forward direction of travel F.
- the longitudinal direction of the first air supply element 201 runs vertically (in FIG. 1 perpendicular to the plane of the blade) or at least - apart from certain curvatures with a view to adapting to the contour of the vehicle outer skin - largely vertically.
- the second air guide element 102 is assigned a second air supply element 202, which is arranged on the left side (top in FIG. 1) of the cross-section reduction section 40, viewed in the forward direction of travel F.
- the longitudinal direction of the second air supply element 202 also runs vertically or - apart from certain curvatures with a view to adapting to the contour of the vehicle outer skin - at least largely vertically.
- the air supply elements 201 and 202 can be formed directly by appropriately shaping the side walls of the front carriage 10.
- the air supply elements 201 and 202 can be formed by body end parts that are attached, for example screwed, to the end face 11 of the car 10.
- the function of the two air guide elements 101 and 102 and the two air supply elements 201 and 202 will be explained below using the first air guide element 101 and the first air supply element 201 as an example; The following statements apply to the second air guide element 102 and the second air supply element 202 accordingly.
- the function of the first air supply element 201 is to supply a horizontal air flow into the transverse plane when driving. section reduction section 40 into it, whereby an air flow L is caused in the cross section reduction area 40.
- the air flow L is shown in FIG. 1 with a solid line in those sections in which it is essentially horizontally aligned.
- the air flow L is directed towards the end face 11 of the front carriage 19;
- the portion of the air flow L located spatially below the air guide element 101 reaches the area of influence of the air guide element 101 through the deflection, which - viewed from the center of the vehicle along the vehicle transverse direction outwards - extends outwards and effects an air flow guidance of the air flow L, namely in such a way that part of the air flow is guided from the inside to the outside and is thereby deflected diagonally downwards;
- the air flow L is shown in FIG. 1 with a dotted line.
- the first air guide element 101 and the first air supply element 201 interact when traveling along the forward direction of travel F in such a way that the portion of the air flow L supplied horizontally by the air supply element 201 below the air guide element 101 is directed backwards from the first air guide element 101 is directed outside with a horizontally outwardly directed directional component and a vertically downwardly directed directional component.
- the horizontal air flow supply - caused by the first air supply element 201 - thus generates the air flow, which the assigned air guide element 101 can direct downwards.
- the air supply element 201 and the air guide element 101 therefore work together and together form a flow guide pair.
- the first air guide element 101 can be arranged in the middle region between the upper end 201a (see FIG. 2) of the first air supply element 201 and the lower end 201b (see FIG. 2) of the first air supply element 201;
- the first air guiding element 101 can be arranged in the area of the upper end of the first air supply element 201 or above it, for example if the air supply elements 201 and 202 do not extend to the roof, but only to the middle of the vehicle in terms of height, for example.
- the cross-sectional reduction section 40 is fluidly segmented into an upper flow section with an upward or horizontal flow direction of the air flow L and into a lower flow section with an outward and downward flow direction of the air flow L.
- Figure 2 shows a particularly advantageous embodiment of the two air guide elements 101 and 102 and the two air supply elements 201 and 202 in more detail in a three-dimensional view diagonally from the side. It can be seen that the two air guiding elements 101 and 102 are preferably channel-shaped and can be screwed to the rear end face 11 of the front carriage 10 by means of holding elements 110.
- the two air supply elements 201 and 202 are formed by extruded profile parts which are attached to the end face 11, for example.
- Figure 3 shows the exemplary embodiment according to Figure 2 again from a different perspective.
- Figures 4 to 6 show a second advantageous embodiment of the two air supply elements 201 and 202 using the example of the second air supply element 202.
- the two air supply elements 201 and 202 are formed by curved sheets which are attached to the front side 11 of the carriage 10 by means of (e.g. bent and riveted) holding elements 220.
- the above explanations in connection with FIGS. 1 to 3 apply accordingly to the exemplary embodiment according to FIGS. 4 to 6.
- the side air supply elements 201 and 202 can also be arranged slightly offset from the vertical plane and possibly also curved.
- FIG. 7 shows a further advantageous embodiment of the two air supply elements 201 and 202.
- the two air supply elements 201 and 202 are formed by inwardly offset, curved sheets which are held on the end face 11 of the carriage 10.
- FIG. 8 shows a schematic cross-sectional representation of an embodiment in which the rear carriage 20 of the rail vehicle 30, viewed in the forward direction of travel F, is also equipped on its front end face 21 with air guiding elements 103 and 104 and air supply elements 203 and 204.
- the air guide elements 103 and 104 and the air supply elements 203 and 204 make it possible to achieve the described air guidance even when the rail vehicle 30 is operated counter to the forward direction of travel F shown in FIGS. 1 to 8, i.e. in the reverse direction of travel R ;
- the air flow guidance in the exemplary embodiment according to FIG. 8 is independent of the direction of travel.
- the above explanations in connection with Figures 1 to 7 apply accordingly to the exemplary embodiment according to Figure 8.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Platform Screen Doors And Railroad Systems (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022207921.3A DE102022207921A1 (de) | 2022-08-01 | 2022-08-01 | Fahrzeug mit Querschnittsreduktionsabschnitt |
| PCT/EP2023/068665 WO2024028037A1 (de) | 2022-08-01 | 2023-07-06 | Fahrzeug mit querschnittsreduktionsabschnitt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4526173A1 true EP4526173A1 (de) | 2025-03-26 |
Family
ID=87473757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23745409.5A Pending EP4526173A1 (de) | 2022-08-01 | 2023-07-06 | Fahrzeug mit querschnittsreduktionsabschnitt |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20260042472A1 (de) |
| EP (1) | EP4526173A1 (de) |
| DE (1) | DE102022207921A1 (de) |
| WO (1) | WO2024028037A1 (de) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3104603C2 (de) * | 1981-02-10 | 1985-09-19 | Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn | Schienenfahrzeug |
| DE102010039391A1 (de) * | 2010-08-17 | 2012-02-23 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Wagenkasten für Schienenfahrzeuge |
| DE102013002096A1 (de) * | 2013-02-05 | 2014-08-07 | Josef Staltmeir | Hochgeschwindigkeitszug mit geringem Energieumsatz |
| WO2018137758A1 (de) * | 2017-01-24 | 2018-08-02 | Stadler Altenrhein Ag | Fahrzeug mit luftführung, faltenbalg und verwendung eines faltenbalgs |
| DE102017113761A1 (de) | 2017-06-21 | 2018-12-27 | HÜBNER GmbH & Co. KG | Windleitelement zur Anordnung zwischen zwei Fahrzeugteilen eines Schienenfahrzeugs |
| FR3096949B1 (fr) | 2019-06-04 | 2021-11-12 | Sncf Mobilites | Dispositif de prolongement pour assurer la continuité pour la circulation de l’air entre un véhicule ferroviaire avant et un véhicule ferroviaire arrière d’un train ferroviaire |
| CN112796242B (zh) | 2019-11-14 | 2022-10-25 | 中车长春轨道客车股份有限公司 | 一种减震降噪风挡导流装置 |
| CN113954893B (zh) * | 2021-12-01 | 2022-11-22 | 中车制动系统有限公司 | 一种列车车端防护装置 |
-
2022
- 2022-08-01 DE DE102022207921.3A patent/DE102022207921A1/de active Pending
-
2023
- 2023-07-06 US US19/100,643 patent/US20260042472A1/en active Pending
- 2023-07-06 WO PCT/EP2023/068665 patent/WO2024028037A1/de not_active Ceased
- 2023-07-06 EP EP23745409.5A patent/EP4526173A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE102022207921A1 (de) | 2024-02-01 |
| US20260042472A1 (en) | 2026-02-12 |
| WO2024028037A1 (de) | 2024-02-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
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| 17P | Request for examination filed |
Effective date: 20241217 |
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| AK | Designated contracting states |
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| RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SIEMENS MOBILITY GMBH |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) |