DE102020113473A1 - Pressure tank arrangement with improved crash properties and motor vehicle with such a pressure tank arrangement - Google Patents
Pressure tank arrangement with improved crash properties and motor vehicle with such a pressure tank arrangement Download PDFInfo
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- DE102020113473A1 DE102020113473A1 DE102020113473.8A DE102020113473A DE102020113473A1 DE 102020113473 A1 DE102020113473 A1 DE 102020113473A1 DE 102020113473 A DE102020113473 A DE 102020113473A DE 102020113473 A1 DE102020113473 A1 DE 102020113473A1
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- pressure
- pressure tank
- tank arrangement
- pressure tanks
- tanks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/063—Arrangement of tanks
- B60K15/067—Mounting of tanks
- B60K15/07—Mounting of tanks of gas tanks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/063—Arrangement of tanks
- B60K2015/0634—Arrangement of tanks the fuel tank is arranged below the vehicle floor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/063—Arrangement of tanks
- B60K2015/0636—Arrangement of tanks the fuel tank being part of the chassis or frame
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/063—Arrangement of tanks
- B60K15/067—Mounting of tanks
- B60K2015/0675—Mounting of tanks allowing deflection movements of the tank in case of a crash
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2306/00—Other features of vehicle sub-units
- B60Y2306/01—Reducing damages in case of crash, e.g. by improving battery protection
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/01—Shape
- F17C2201/0104—Shape cylindrical
- F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/03—Orientation
- F17C2201/035—Orientation with substantially horizontal main axis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/05—Size
- F17C2201/056—Small (<1 m3)
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/05—Size
- F17C2201/058—Size portable (<30 l)
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/0602—Wall structures; Special features thereof
- F17C2203/0604—Liners
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/0602—Wall structures; Special features thereof
- F17C2203/0612—Wall structures
- F17C2203/0614—Single wall
- F17C2203/0619—Single wall with two layers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/0634—Materials for walls or layers thereof
- F17C2203/0658—Synthetics
- F17C2203/0663—Synthetics in form of fibers or filaments
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/068—Special properties of materials for vessel walls
- F17C2203/069—Break point in the wall
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/01—Mounting arrangements
- F17C2205/0103—Exterior arrangements
- F17C2205/0111—Boxes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/01—Mounting arrangements
- F17C2205/0123—Mounting arrangements characterised by number of vessels
- F17C2205/013—Two or more vessels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/01—Pure fluids
- F17C2221/012—Hydrogen
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/03—Mixtures
- F17C2221/032—Hydrocarbons
- F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0107—Single phase
- F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
- F17C2223/036—Very high pressure (>80 bar)
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/04—Reducing risks and environmental impact
- F17C2260/042—Reducing risk of explosion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2270/00—Applications
- F17C2270/01—Applications for fluid transport or storage
- F17C2270/0165—Applications for fluid transport or storage on the road
- F17C2270/0168—Applications for fluid transport or storage on the road by vehicles
- F17C2270/0178—Cars
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
Die Erfindung betrifft eine Drucktankanordnung (100) zur Speicherung von Brennstoff in einem Kraftfahrzeug, mit- mehreren röhrenförmigen Drucktanks (110); und- einem Gehäuse (160) oder einem Rahmen (130), in dem die Drucktanks (110) parallel zueinander angeordnet sind. Erfindungsgemäß sind die Drucktanks (110) zueinander beabstandet und das Gehäuse (160) oder der Rahmen (130) ist in Zwischenbereichen, welche sich mit Freiräumen (120) zwischen den beabstandeten Drucktanks (110) überdecken, mit Sollverformungsstellen (S) ausgebildet, in denen im Crashfall durch lokale Verformungsarbeit unter Verringerung der Abstände zwischen den Drucktanks (110) Crashenergie abgebaut werden kann. Die Erfindung betrifft ferner ein Kraftfahrzeug mit einer solchen Drucktankanordnung (100).The invention relates to a pressure tank arrangement (100) for storing fuel in a motor vehicle, with several tubular pressure tanks (110); and - a housing (160) or a frame (130) in which the pressure tanks (110) are arranged parallel to one another. According to the invention, the pressure tanks (110) are spaced apart from one another and the housing (160) or the frame (130) is formed with desired deformation points (S) in intermediate areas which overlap with free spaces (120) between the spaced pressure tanks (110) in the event of a crash, crash energy can be reduced by local deformation work while reducing the distances between the pressure tanks (110). The invention also relates to a motor vehicle with such a pressure tank arrangement (100).
Description
Die Erfindung betrifft eine Drucktankanordnung zur Speicherung von Brennstoff in einem Kraftfahrzeug, mit mehreren röhrenförmigen Drucktanks und mit einem Gehäuse oder einem Rahmen, in dem die Drucktanks parallel zueinander angeordnet sind. Die Erfindung betrifft ferner ein Kraftfahrzeug mit einer solchen Drucktankanordnung.The invention relates to a pressure tank arrangement for storing fuel in a motor vehicle, with a plurality of tubular pressure tanks and with a housing or a frame in which the pressure tanks are arranged parallel to one another. The invention also relates to a motor vehicle with such a pressure tank arrangement.
Röhrenförmige Drucktanks (Rohrspeicher) der hier betreffenden Art werden in Kraftfahrzeugen zur Speicherung von Brennstoff, insbesondere zur Speicherung von Wasserstoff (H2) für einen Brennstoffzellenantrieb oder zur Speicherung von Erdgas (CNG) für einen Erdgasantrieb, verwendet.Tubular pressure tanks of the type in question are used in motor vehicles for storing fuel, in particular for storing hydrogen (H 2 ) for a fuel cell drive or for storing natural gas (CNG) for a natural gas drive.
Die
Mit der Erfindung soll eine Drucktankanordnung oben genannter Art bereitgestellt werden, die verbesserte Crasheigenschaften aufweist.The invention is intended to provide a pressure tank arrangement of the type mentioned above which has improved crash properties.
Diese Aufgabe wird gelöst durch die erfindungsgemäße Drucktankanordnung des Patentanspruchs 1. Mit dem nebengeordneten Patentanspruch erstreckt sich die Erfindung auch auf ein Kraftfahrzeug, insbesondere einen Personenkraftwagen (PKW) oder ein leichtes Nutzfahrzeug (LT), welches wenigstens eine erfindungsgemäße Drucktankanordnung aufweist, die insbesondere im Unterboden bzw. am Karosserieboden angeordnet ist. Zusätzliche Merkmale ergeben sich analog für beide Erfindungsgegenstände aus den abhängigen Patentansprüchen, der nachfolgenden Erfindungsbeschreibung und den Figuren.This object is achieved by the pressure tank arrangement according to the invention of claim 1. With the independent claim, the invention also extends to a motor vehicle, in particular a passenger car (PKW) or a light commercial vehicle (LT), which has at least one pressure tank arrangement according to the invention, in particular in the underbody or is arranged on the body floor. Additional features result analogously for both subjects of the invention from the dependent patent claims, the following description of the invention and the figures.
Die erfindungsgemäße Drucktankanordnung ist dadurch gekennzeichnet, dass die röhrenförmigen Drucktanks (im Folgenden auch nur als Drucktanks bezeichnet) zueinander beabstandet sind und dass ferner das Gehäuse oder der Rahmen in Zwischenbereichen, welche sich mit Freiräumen zwischen den beabstandeten Drucktanks (zumindest teilsweise) überdecken, mit Sollverformungsstellen bzw. -bereichen ausgebildet ist, in denen im Crashfall durch lokale Verformungsarbeit, insbesondere durch plastisches Verformen, Crashenergie abbaubar ist bzw. abgebaut werden kann und sich dabei die (ursprünglichen) Abstände zwischen den Drucktanks verringern. Im Crashfall kann also durch lokale Verformungsarbeit in den Sollverformungsstellen bzw. -bereichen unter Verringerung der (ursprünglichen) Abstände zwischen den Drucktanks Crashenergie abgebaut werden.The pressure tank arrangement according to the invention is characterized in that the tubular pressure tanks (hereinafter also referred to only as pressure tanks) are spaced apart from one another and that furthermore the housing or the frame has predetermined deformation points in intermediate areas which (at least partially) overlap with free spaces between the spaced pressure tanks or areas is formed in which in the event of a crash by local deformation work, in particular by plastic deformation, crash energy is or can be degraded and thereby reduce the (original) distances between the pressure tanks. In the event of a crash, local deformation work in the target deformation points or areas can reduce the (original) distances between the pressure tanks and reduce the crash energy.
Mit der erfindungsgemäßen Drucktankanordnung wird von den bisherigen technischen Konzepten, die zum Schutz der Drucktanks einen möglichst steifen und verformungsfesten Rahmen bzw. ein entsprechend ausgebildetes Gehäuse vorsehen, abgewichen und stattdessen ein Rahmen bzw. Gehäuse vorgeschlagen, dass in bestimmten Bereichen (s. o.) gezielt verformbar ist, wodurch gleichmäßiger und effektiver Crashenergie abgebaut wird. Dabei werden die mit Abstand zueinander angeordneten Drucktanks quasi zusammengeschoben, sodass sich der Abstand verringert.The pressure tank arrangement according to the invention deviates from the previous technical concepts, which provide a frame that is as rigid and deformation-resistant as possible or a correspondingly designed housing to protect the pressure tanks, and instead proposes a frame or housing that is specifically deformable in certain areas (see above) , whereby crash energy is dissipated more evenly and effectively. The pressure tanks, which are arranged at a distance from one another, are pushed together, so to speak, so that the distance is reduced.
Die aus dem Stand der Technik bekannten Rahmen bzw. Gehäuse weisen häufig eine äußere Crashstruktur auf (die bspw. aus einem umlaufenden Hohlkammerprofil gebildet ist), die bei der erfindungsgemäßen Drucktankanordnung entfallen oder zumindest verkleinert werden kann, sodass mehr Bauraum für die Anordnung der Drucktanks zur Verfügung steht, wobei der zusätzliche Bauraum für die Beabstandung der Drucktanks genutzt werden kann. Die erfindungsgemäße Drucktankanordnung ist somit bauraumneutral oder führt sogar zu einem besseren Bauraumnutzungsverhältnis, sodass das Gesamtspeichervolumen erhöht werden kann. Ferner können sich auch Gewichtsvorteile ergeben.The frames or housings known from the prior art often have an outer crash structure (which is formed, for example, from a circumferential hollow chamber profile), which can be omitted or at least reduced in the pressure tank arrangement according to the invention, so that more installation space for the arrangement of the pressure tanks Is available, whereby the additional installation space can be used for spacing the pressure tanks. The pressure tank arrangement according to the invention is therefore space-neutral or even leads to a better space utilization ratio, so that the total storage volume can be increased. Furthermore, weight advantages can also result.
Das Gehäuse oder der Rahmen der erfindungsgemäßen Drucktankanordnung kann gegenüberliegende Trägerelemente oder Ähnliches aufweisen, an denen die Drucktanks befestigt bzw. gelagert sind, insbesondere nach dem Festlager-Loslager-Prinzip, wobei diese Trägerelemente (in Zwischenbereichen) zwischen den Befestigungs- bzw. Lagerstellen mit reduziertem Querschnitt ausgebildet sind. Die Stellen bzw. Bereiche mit reduziertem Querschnitt bilden Sollverformungsstellen (bzw. Verformungssollstellen), in denen bei Crashbelastung gezielt eine lokale Verformung erfolgen kann.The housing or the frame of the pressure tank arrangement according to the invention can have opposite carrier elements or the like, on which the pressure tanks are attached or supported, in particular according to the fixed-bearing-floating bearing principle, these carrier elements (in intermediate areas) between the fastening or bearing points with reduced Cross-section are formed. The points or areas with a reduced cross-section form desired deformation points (or desired deformation points) in which local deformation can take place in a targeted manner in the event of a crash load.
Das Gehäuse oder gegebenenfalls auch der Rahmen kann einen Deckel und/oder einen Boden aufweisen, wobei dieser Deckel und/oder dieser Boden in Zwischenbereichen (die sich mit Freiräumen zwischen beabstandeten Drucktanks überdecken) mit reduzierter Dicke ausgebildet ist. Die Stellen bzw. Bereiche mit reduzierter Dicke bilden Sollverformungsstellen, in denen bei Crashbelastung gezielt eine lokale Verformung erfolgen kann.The housing or possibly also the frame can have a cover and / or a base, this cover and / or this base being designed with a reduced thickness in intermediate areas (which overlap with free spaces between spaced-apart pressure tanks). The points or areas with reduced thickness form desired deformation points in which local deformation can take place in a targeted manner in the event of a crash load.
Bevorzugt sind die Drucktanks mit einem Abstand von wenigstens 5 mm, wenigstens 10 mm, wenigstens 20 mm, wenigstens 30 mm oder wenigstens 40 mm zueinander beabstandet (womit insbesondere der engste Abstand von Außenwand zu Außenwand gemeint ist), sodass die Drucktanks im Crashfall über eine vergleichsweise große Wegstrecke aufeinander zubewegt werden können, insbesondere ohne aneinanderzustoßen, und dabei viel Crashenergie abgebaut werden kann.The pressure tanks are preferably spaced apart by at least 5 mm, at least 10 mm, at least 20 mm, at least 30 mm or at least 40 mm apart (which means in particular the closest distance from outer wall to outer wall), so that the pressure tanks can be moved towards one another over a comparatively long distance in the event of a crash, in particular without hitting one another, and a lot of crash energy can be dissipated in the process.
Zwischen den Drucktanks, d. h. in den Freiräumen zwischen den Drucktanks, können zusätzlich Verformungskörper angeordnet sein, die im Crashfall beim aufeinander Zubewegen der Drucktanks einerseits komprimiert werden und dabei Crashenergie abbauen und die anderseits ein Aneinanderstoßen der Drucktanks verhindern. Die Verformungskörper sind bspw. aus einem Kunststoff- oder Metallschaummaterial gebildet.Between the pressure tanks, i. H. In the free spaces between the pressure tanks, deformation bodies can also be arranged which, in the event of a crash, are compressed when the pressure tanks move towards each other and thereby reduce crash energy and on the other hand prevent the pressure tanks from colliding. The deformation bodies are formed, for example, from a plastic or metal foam material.
Die Drucktanks der erfindungsgemäßen Drucktankanordnung sind bevorzugt in mehreren Ebenen bzw. Lagen angeordnet. Besonders bevorzugt sind die Drucktanks (nur) in einer Ebene, insbesondere in einer horizontalen Ebene, angeordnet und bilden quasi eine einzelne Drucktanklage, was einen besonders flachen Aufbau der Drucktankanordnung bedingt.The pressure tanks of the pressure tank arrangement according to the invention are preferably arranged in several levels or layers. Particularly preferably, the pressure tanks are (only) arranged in one plane, in particular in a horizontal plane, and form, as it were, a single pressure tank system, which requires a particularly flat construction of the pressure tank arrangement.
Am Gehäuse oder am Rahmen der erfindungsgemäßen Drucktankanordnung kann wenigstens ein äußeres Crashstrukturelement angeordnet sein, welches im Crashfall zusätzlich Crashenergie absorbieren kann. Das Crashstrukturelement kann aus einem Hohlkammerprofil, z. B. aus einem Strangpresshohlprofil, gebildet oder als Wabenstrukturelement aufgebaut sein. Ein solches äußeres Crashstrukturelement kann vergleichsweise klein dimensioniert werden (s. o.).At least one external crash structure element, which can additionally absorb crash energy in the event of a crash, can be arranged on the housing or on the frame of the pressure tank arrangement according to the invention. The crash structure element can consist of a hollow chamber profile, for. B. formed from an extruded hollow profile or constructed as a honeycomb structural element. Such an outer crash structure element can be dimensioned comparatively small (see above).
Die Drucktanks der erfindungsgemäßen Drucktankanordnung sind bevorzugt aus einem Liner und einer darauf aufgebrachten Ummantelung aus faserverstärktem Kunststoff (FVK), insbesondere auch mit thermoplastischer Matrix, gebildet. Solche Drucktanks sind besonders leicht und robust.The pressure tanks of the pressure tank arrangement according to the invention are preferably formed from a liner and a sheath made of fiber-reinforced plastic (FRP), in particular also with a thermoplastic matrix, applied to it. Such pressure tanks are particularly light and robust.
Nachfolgend werden anhand der Figuren beispielhaft mehrere Ausführungsmöglichkeiten der Erfindung erläutert. Die in den Figuren gezeigten und/oder nachfolgend erläuterten Merkmale können, auch unabhängig von bestimmten Merkmalskombinationen, allgemeine Merkmale der Erfindung sein und die Erfindung entsprechend weiterbilden. Ferner sind die in den Figuren gezeigten Ausführungsmöglichkeiten ausdrücklich auch miteinander kombinierbar.
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1 zeigt in einer schematischen Draufsicht eine erfindungsgemäße Drucktankanordnung für ein Kraftfahrzeug. -
2 veranschaulicht in einer schematischen Schnittdarstellung gemäß dem in1 angegebenen Schnittverlauf (A-A) eine erste Ausführungsmöglichkeit der Erfindung. -
3 veranschaulicht analog zur2 eine zweite Ausführungsmöglichkeit der Erfindung. -
4 veranschaulicht analog zur2 weitere Ausführungsmöglichkeiten der Erfindung.
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1 shows in a schematic plan view a pressure tank arrangement according to the invention for a motor vehicle. -
2 illustrated in a schematic sectional view according to FIG1 specified section line (AA) a first possible embodiment of the invention. -
3 illustrated analogously to2 a second embodiment of the invention. -
4th illustrated analogously to2 further possible embodiments of the invention.
Die in
Die Freiräume
Der Rahmen
Bei der in
Bei der in
Der Boden
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDED IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturPatent literature cited
- DE 102018205967 A1 [0003]DE 102018205967 A1 [0003]
- DE 102018210699 A1 [0003]DE 102018210699 A1 [0003]
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WO2023006555A1 (en) * | 2021-07-26 | 2023-02-02 | Bayerische Motoren Werke Aktiengesellschaft | Closure element, vehicle subassembly, and vehicle |
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DE102013008428A1 (en) | 2013-05-16 | 2014-12-04 | Volkswagen Aktiengesellschaft | Arrangement for storing at least one, arranged in a housing drive energy storage in a motor vehicle |
DE102017002211A1 (en) | 2016-03-21 | 2017-09-21 | Scania Cv Ab | Distance element for use in a holding arrangement, holding arrangement and this holding arrangement comprehensive vehicle |
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