EP4071401A1 - Storage device for compressed gas, vehicle - Google Patents
Storage device for compressed gas, vehicle Download PDFInfo
- Publication number
- EP4071401A1 EP4071401A1 EP21167195.3A EP21167195A EP4071401A1 EP 4071401 A1 EP4071401 A1 EP 4071401A1 EP 21167195 A EP21167195 A EP 21167195A EP 4071401 A1 EP4071401 A1 EP 4071401A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- compressed gas
- connection
- storage device
- gas tank
- storage line
- 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.)
- Withdrawn
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Classifications
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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
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/08—Mounting arrangements for 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
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/08—Mounting arrangements for vessels
- F17C13/083—Mounting arrangements for vessels for medium-sized mobile storage vessels, e.g. tank vehicles or railway tank vehicles
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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
- F17C2201/0119—Shape cylindrical with flat end-piece
-
- 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
- F17C2205/0134—Two or more vessels characterised by the presence of fluid connection between vessels
- F17C2205/0142—Two or more vessels characterised by the presence of fluid connection between vessels bundled in parallel
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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
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/037—Quick connecting means, e.g. couplings
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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
- 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
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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
-
- 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
- F17C2270/0184—Fuel cells
Definitions
- the invention relates to a storage device for compressed gas.
- the compressed gas can be hydrogen or natural gas, for example, which is used as fuel in a fuel cell system or in an internal combustion engine.
- the invention relates to a vehicle with a storage device according to the invention.
- Safety solenoid valves are therefore used to securely close pressurized gas containers, which are closed when de-energized so that gas escape is reliably avoided even in the event of a fault. It may be required by law that such a safety solenoid valve (“Shut-Off-Valve”) be present for each pressurized gas container and must be fitted directly on or in the container. Depending on the number of containers, the number of valves can thus increase rapidly.
- a storage device for compressed gas with a plurality of compressed gas containers which are each connected to a common collection volume via a tank valve and a line element.
- the collection volume which can also be referred to as a "rail", reduces the piping work.
- the collection volume is expanded to the effect that valve devices, which were previously present in the gas supply line or the gas discharge line are integrated into the collection volume. This reduces the number of interfaces, which is an advantage with regard to the sealing problem.
- the integrated valve devices are preferably a non-return valve in the area of a gas supply line and a shut-off valve in the area of a gas discharge line.
- valve devices integrated in the collection volume can be used to seal off the surrounding lines.
- the present invention is based on the object of further developing a storage device of the type mentioned above in such a way that it satisfies increased safety requirements, for example to enable the use of pressurized gas containers whose nominal pressure is 900 bar or more.
- the proposed storage device for compressed gas for example for hydrogen or natural gas, comprises a storage line and at least one compressed gas tank connected to the storage line.
- the connection is realized via a socket-like connection piece of the storage line and a socket-like connection piece of the compressed gas tank, which interact to form a joint.
- connection of the compressed gas tank to the storage line which is designed as a joint, allows tolerances in the connection area due to manufacturing and/or assembly to be compensated for, so that a high degree of tightness of the connection is ensured. In particular, misalignment and/or concentricity problems can be eliminated via the joint.
- connection satisfies increased safety requirements, so that the storage device is suitable for nominal pressures of up to 900 bar or even more.
- the socket-like connection piece of the storage line and the socket-like connection piece of the compressed gas tank preferably each have a spherically or conically shaped connection geometry.
- a spherically or conically shaped connection geometry For example, two spherically shaped connection geometries or one spherical and one conically shaped connection geometry can interact to form a joint.
- connection geometries In the case of two spherically shaped connection geometries, these are of opposite design, that is to say that one geometry is concave and the other geometry is convex, so that they interact to form a ball and socket joint.
- the concave geometry is formed on the connection piece of the storage line and the convex geometry on the connection piece of the compressed gas tank, resulting in an optimized flow geometry in the flow direction of the gas from the compressed gas tank into the storage line.
- the (concave) conical geometry forms a seat for the (convex) spherical geometry.
- the contact area is reduced to a circumferential contact line, which enables self-centering and also has a high sealing force in the contact area. Additional sealing means, such as a sealing ring, can therefore be dispensed with.
- the convex geometry is advantageously formed on the connection piece of the compressed gas tank and the concave geometry on the connection piece of the accumulator line.
- a sealing ring be integrated into the connection geometry of the connection piece of the storage line, which sealing ring bears against the connection geometry of the connection piece of the compressed gas tank under axial prestress.
- the two connection geometries are each spherically shaped, so that the contact area is not reduced to a circumferential contact line.
- vibrations can be compensated with the help of the sealing ring to which memory devices for mobile applications in particular are exposed, for example when driving over uneven terrain.
- the sealing ring converts the kinetic energy of the vibrations into deformation energy, so that damping is achieved.
- the compressed gas tank is preferably held on the storage line by means of a union nut.
- An axial force can be generated via the mounting by means of the union nut, which ensures the sealing contact between the two connecting pieces and causes a sealing force in the sealing contact. If the sealing contact is made via a sealing ring, the necessary axial prestressing force can be generated with the aid of the union nut, by means of which the sealing ring rests on the connection piece of the compressed gas tank.
- the union nut is preferably connected to the connection piece of the storage line or the connection piece of the compressed gas tank via a screw connection and is supported in the axial direction on an annular collar of the respective other connection piece.
- the compressed gas tank can be easily assembled and disassembled via the screw connection. To do this, simply loosen the screw connection between the union nut and the storage line or the compressed gas tank.
- the support of the union nut on the annular collar of the respective other connection piece does not have to meet any tightness requirements, since the functions of holding and sealing are separate in the present case.
- the seal is achieved via the connection geometries of the two connection pieces or an intermediate sealing ring, so that the union nut only has to take over the function of the holder.
- the annular collar on which the union nut is supported can be formed by the respective connection piece, which is the connection piece that is not screwed to the union nut, or by a separate ring. If the latter is the case, the separate ring is preferably fastened to the corresponding connecting piece with the aid of a locking ring, so that the position of the ring or annular collar in relation to the connecting piece is fixed.
- the union nut is supported axially via a spherically or conically shaped support geometry on a spherically or conically shaped support geometry of the annular collar. This means that the union nut and the annular collar are also connected in an articulated manner.
- the union nut surrounds the connection piece that has or forms the annular collar, forming an annular gap.
- the annular gap ensures the free space that the union nut needs to move relative to the annular collar of the respective connection piece.
- several compressed gas tanks are connected to the storage line.
- the connection is the same for all compressed gas tanks, so that all compressed gas tanks are connected to the storage line via an articulated connection.
- the multiple compressed gas tanks are preferably arranged in a row, so that a space-saving arrangement is created.
- the overall height of the storage device can be kept low as a result of the arrangement in a row. This proves to be an advantage above all in mobile applications, since the storage device is usually arranged underneath the chassis of a vehicle, so that the overall height is limited.
- Compressed gas bottles in particular come into consideration as compressed gas containers. In this case, a bottleneck or a nozzle-like component connected to the bottleneck can serve as the connection piece.
- the multiple compressed gas tanks or compressed gas cylinders are mounted on a frame-like structure.
- the entire storage device can be attached to the chassis of a vehicle via the frame-like structure, preferably underneath the chassis.
- the at least one compressed gas tank is advantageously mounted in the frame-like structure via a fixed bearing and a floating bearing.
- the floating bearing allows the compressed gas tank to undergo thermally induced changes in length without constraints or tension. As a result, the robustness of the memory device can be further increased.
- the loose bearing is preferably arranged closer to the storage line than the fixed bearing. Since the connection of the compressed gas tank to the storage line is designed as a joint, the changes in length and/or movements of the compressed gas tank relative to the floating bearing in the area of the connection can be compensated.
- the storage line is connected to the frame-like structure and the connection allows relative movements of the storage line with respect to the frame-like structure, in particular to compensate for changes in length of the at least one compressed gas tank.
- the connection can be a clamp or clip connection, for example.
- a number of attachment points can be provided on the frame-like structure, in the area in which the storage line is attached by means of clamps or clips.
- the connection should in particular allow movements of the storage line in the direction of the longitudinal axis of the at least one compressed gas tank.
- the storage device according to the invention is preferably used in a mobile application, a vehicle with a storage device according to the invention is also proposed.
- the compressed gas can in particular be hydrogen for operating a fuel cell system or an internal combustion engine.
- the compressed gas can be natural gas, which is stored on board the vehicle for operating an internal combustion engine with the aid of the device according to the invention.
- the storage device shown schematically comprises a frame-like structure 16 which encloses a storage line 1 and a plurality of compressed gas tanks 2 connected to the storage line 1 .
- a frame-like structure 16 which encloses a storage line 1 and a plurality of compressed gas tanks 2 connected to the storage line 1 .
- five pressurized gas containers 2 arranged in a row are shown, which are aligned approximately parallel to one another. Because of manufacturing and/or assembly-related tolerances, there are axial displacements that are compensated for in the present case by tilting the respective compressed gas tank 2 .
- the pressurized gas tanks 2 can be positioned at an angle to one another (see Fig. 1a )) and/or at different altitudes ( Fig. 1b )) come to rest.
- connection of the compressed gas tank 2 to the storage line 1 is in each case via a socket-like connection piece 3 of the storage line 1 and a socket-like connection piece 4 of the respective compressed gas tank 2 manufactured. Possible embodiments are based on the Figures 2 and 3 described.
- connection piece 3 which is part of the storage line 1 .
- the connection piece 3 has a conically shaped connection geometry 6 which serves as a seat for a spherically shaped connection geometry 7 of a second socket-like connection piece 4 which is part of a compressed gas tank 2 . Because of their connection geometries 6 , 7 , the two connection pieces 3 , 4 work together to form a joint 5 .
- the joint 5 can thus tilt the Compressed gas tank 2 can be achieved in order to compensate for manufacturing and / or assembly-related tolerances.
- connection geometries 6, 7 The contact between the two connection geometries 6, 7 is reduced to a circumferential contact line, so that when the compressed gas tank 2 is assembled, the compressed gas tank 2 is self-centering. This means that the compressed gas tank 2 aligns itself in relation to the connection geometry 6 of the connection piece 3 of the storage line 1 . At the same time, a high sealing force can be achieved over the linear contact area.
- the sealing force is generated with the aid of a union nut 9 which is connected on the one hand to the connection piece 4 of the compressed gas tank 2 via a screw connection 10 and on the other hand is axially supported on an annular collar 11 of the connection piece 3 of the storage line 1 .
- the annular collar 11 is designed as a separate ring, which is fastened to the connection piece 3 of the storage line 1 by means of a locking ring 12 .
- the sealing force can be adjusted via the screwing depth of the connecting piece 4 of the compressed gas tank 2 into the union nut 9 .
- the union nut 9 has a first support geometry 13 which also forms a joint with a second support geometry 14 formed on the annular collar 11.
- An annular gap 15 between the union nut 9 and the connection piece 3 of the storage line 1 provides the necessary free space so that the compressed gas tank 2 together with the union nut 9 can be aligned with respect to the connection piece 3 of the storage line 1 .
- connection pieces 3, 4 each have a spherically shaped connection geometry 6, 7, so that a flat contact area is created.
- the sealing force is less high, so that a sealing ring 8 is additionally integrated into the connection geometry 6 of the connection piece 3 of the storage line 1 to ensure tightness.
- the connection geometry 6 has a shoulder 17 in the form of a Depression into which the sealing ring 8 is inserted.
- the embodiment corresponds to 3 the the 2 , so that on the description of the 2 is referenced.
- the union nut 9 for holding the compressed gas tank 2 is screwed to the connection piece 3 of the storage line 1 via a screw connection 10 and is axially supported on an annular collar 11 of the connection piece 4 of the compressed gas tank 2 .
- the annular collar 11 is not formed by the connection piece 4 itself, but by a separate ring which is fixed via a locking ring 12 on the connection piece 4 of the compressed gas tank 2 .
- the annular collar 11 has a support geometry 14 which interacts with a support geometry 13 of the union nut 9 to form a joint.
- connection piece 4 of the compressed gas tank 2 and the union nut 9 creates the necessary free space in order to be able to pivot the compressed gas tank 2 relative to the connection piece 3 of the storage line 1 to at least a small extent. This free space is completely sufficient for tolerance compensation.
- FIG 5 shows a fully assembled storage device according to the invention, with the storage line 1 not being visible, however, since it is covered by the frame-like structure 16.
- the storage line 1 not being visible, however, since it is covered by the frame-like structure 16.
- several pressurized gas tanks 2 can be seen, which are held parallel to one another in the frame-like structure 16 via a fixed bearing 18 and a floating bearing 19 .
- the number of compressed gas tanks 2 is not limited to three, but can be expanded as desired.
- the fixed bearing 18 has a lower part 18.1 and an upper part 18.2.
- the lower part 18.1 which is formed by a web-like structure, causes in particular a lateral support of the compressed gas tank 2. In this way, vibrations can be absorbed.
- raised sections of the lower part 18.1 prevent the pressurized gas containers 2 from touching one another.
- the upper part 18.2 of the fixed bearing 18 presses the compressed gas tank 2 downwards, i.e. against the lower part 18.1 of the fixed bearing 18.
- the loose bearing 19 also has a lower part 19.1 and an upper part 19.2, with the upper part 19.2 not exerting any pressure on the compressed gas tank 2.
- the upper part 19.2 preferably has no contact at all with the pressurized gas containers 2, so that these can move relative to the loose bearing 19, in particular in the direction of their longitudinal axis.
- the lower part 19.1 of the loose bearing 19 can be designed analogously to the lower part 18.1 of the fixed bearing 18 in order to prevent the compressed gas tank 2 from hitting one another in the event of vibration.
- the storage line 1 can be held on the frame-like structure 16 via clamp connections 20, the clamp connections 20 allowing movements of the storage line 1 relative to the frame-like structure 16 in the direction of the longitudinal axes of the compressed gas tanks 2.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
Die Erfindung betrifft eine Speichervorrichtung für Druckgas, beispielsweise Wasserstoff oder Erdgas, umfassend eine Speicherleitung (1) und mindestens einen an die Speicherleitung (1) angeschlossenen Druckgasbehälter (2), wobei der Anschluss über ein stutzenartiges Anschlussstück (3) der Speicherleitung (1) und ein stutzenartiges Anschlussstück (4) des Druckgasbehälters (2) realisiert ist, die ein Gelenk (5) ausbildend zusammenwirken.Die Erfindung betrifft ferner ein Fahrzeug mit einer erfindungsgemäßen Speichervorrichtung.The invention relates to a storage device for compressed gas, for example hydrogen or natural gas, comprising a storage line (1) and at least one compressed gas tank (2) connected to the storage line (1), the connection being made via a socket-like connecting piece (3) to the storage line (1) and a socket-like connection piece (4) of the compressed gas tank (2) is realized, which interact forming a joint (5). The invention also relates to a vehicle with a storage device according to the invention.
Description
Die Erfindung betrifft eine Speichervorrichtung für Druckgas. Bei dem Druckgas kann es sich beispielsweise um Wasserstoff oder Erdgas handeln, der bzw. das in einem Brennstoffzellensystem oder in einer Brennkraftmaschine als Brennstoff genutzt wird.The invention relates to a storage device for compressed gas. The compressed gas can be hydrogen or natural gas, for example, which is used as fuel in a fuel cell system or in an internal combustion engine.
Darüber hinaus betrifft die Erfindung ein Fahrzeug mit einer erfindungsgemäßen Speichervorrichtu ng.In addition, the invention relates to a vehicle with a storage device according to the invention.
In mobilen Anwendungen werden Druckgase üblicherweise in einem einzigen Druckgastank oder in mehreren Druckgasbehältern bzw. Druckgasflaschen bevorratet. Aus Sicherheitsgründen muss zu jedem Zeitpunkt die Dichtheit des Tanks bzw. der Flaschen gewährleistet sein. Zum sicheren Verschließen von Druckgasbehältern werden daher Sicherheitsmagnetventile eingesetzt, die im stromlosen Zustand geschlossen sind, so dass ein Gasaustritt selbst im Fehlerfall sicher vermieden wird. Gesetzlich kann vorgeschrieben sein, dass je Druckgasbehälter ein derartiges Sicherheitsmagnetventil ("Shut-Off-Valve") vorhanden und direkt am oder im Behälter angebracht sein muss. In Abhängigkeit von der Anzahl der Behälter kann sich somit die Anzahl der Ventile schnell erhöhen.In mobile applications, compressed gases are usually stored in a single compressed gas tank or in several compressed gas containers or compressed gas cylinders. For safety reasons, the tightness of the tank or cylinder must be guaranteed at all times. Safety solenoid valves are therefore used to securely close pressurized gas containers, which are closed when de-energized so that gas escape is reliably avoided even in the event of a fault. It may be required by law that such a safety solenoid valve (“Shut-Off-Valve”) be present for each pressurized gas container and must be fitted directly on or in the container. Depending on the number of containers, the number of valves can thus increase rapidly.
Aus der Offenlegungsschrift
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Speichervorrichtung der vorstehend genannten Art derart weiterzubilden, dass sie erhöhten Sicherheitsanforderungen genügt, beispielsweise, um den Einsatz von Druckgasbehältern zu ermöglichen, deren Nenndruck 900 bar oder mehr beträgt.The present invention is based on the object of further developing a storage device of the type mentioned above in such a way that it satisfies increased safety requirements, for example to enable the use of pressurized gas containers whose nominal pressure is 900 bar or more.
Zur Lösung der Aufgabe wird die Speichervorrichtung mit den Merkmalen des Anspruchs 1 vorgeschlagen. Vorteilhafte Weiterbildungen der Erfindung sind den Unteransprüchen zu entnehmen. Ferner wird ein Fahrzeug mit einer erfindungsgemäßen Speichervorrichtung angegeben.To solve the problem, the memory device with the features of claim 1 is proposed. Advantageous developments of the invention can be found in the dependent claims. Furthermore, a vehicle with a memory device according to the invention is specified.
Die vorgeschlagene Speichervorrichtung für Druckgas, beispielsweise für Wasserstoff oder Erdgas, umfasst eine Speicherleitung und mindestens einen an die Speicherleitung angeschlossenen Druckgasbehälter. Der Anschluss ist dabei über ein stutzenartiges Anschlussstück der Speicherleitung und ein stutzenartiges Anschlussstück des Druckgasbehälters realisiert, die ein Gelenk ausbildend zusammenwirken.The proposed storage device for compressed gas, for example for hydrogen or natural gas, comprises a storage line and at least one compressed gas tank connected to the storage line. The connection is realized via a socket-like connection piece of the storage line and a socket-like connection piece of the compressed gas tank, which interact to form a joint.
Der als Gelenk ausgeführte Anschluss des Druckgasbehälters an die Speicherleitung ermöglicht den Ausgleich fertigungs- und/oder montagebedingte Toleranzen im Anschlussbereich, so dass eine hohe Dichtheit des Anschlusses gewährleistet ist. Über das Gelenk können insbesondere Desachsierungs- und/oder Konzentrizitätsprobleme behoben werden.The connection of the compressed gas tank to the storage line, which is designed as a joint, allows tolerances in the connection area due to manufacturing and/or assembly to be compensated for, so that a high degree of tightness of the connection is ensured. In particular, misalignment and/or concentricity problems can be eliminated via the joint.
Die hohe Dichtheit des Anschlusses wiederum genügt erhöhten Sicherheitsanforderungen, so dass die Speichervorrichtung für Nenndrücke bis 900 bar oder sogar darüber geeignet ist.The tightness of the connection in turn satisfies increased safety requirements, so that the storage device is suitable for nominal pressures of up to 900 bar or even more.
Zur Ausbildung des Gelenks weisen bevorzugt das stutzenartige Anschlussstück der Speicherleitung und das stutzenartige Anschlussstück des Druckgasbehälters jeweils eine sphärisch oder konisch geformte Anschlussgeometrie auf. Beispielsweise können zwei sphärisch geformte Anschlussgeometrien oder eine sphärisch und eine konisch geformte Anschlussgeometrie ein Gelenk ausbildend zusammenwirken.To form the joint, the socket-like connection piece of the storage line and the socket-like connection piece of the compressed gas tank preferably each have a spherically or conically shaped connection geometry. For example, two spherically shaped connection geometries or one spherical and one conically shaped connection geometry can interact to form a joint.
Im Falle zweier sphärisch geformter Anschlussgeometrien sind diese gegengleich ausgebildet, das heißt, dass die eine Geometrie konkav und die andere Geometrie konvex ausgebildet ist, so dass diese ein Kugelgelenk ausbildend zusammenwirken. Vorteilhafterweise ist die konkave Geometrie am Anschlussstück der Speicherleitung und die konvexe Geometrie am Anschlussstück des Druckgasbehälters ausgebildet, so dass sich eine optimierte Strömungsgeometrie in Strömungsrichtung des Gases aus dem Druckgasbehälter in die Speicherleitung ergibt.In the case of two spherically shaped connection geometries, these are of opposite design, that is to say that one geometry is concave and the other geometry is convex, so that they interact to form a ball and socket joint. Advantageously, the concave geometry is formed on the connection piece of the storage line and the convex geometry on the connection piece of the compressed gas tank, resulting in an optimized flow geometry in the flow direction of the gas from the compressed gas tank into the storage line.
Im Falle einer sphärisch und einer konisch geformten Anschlussgeometrie, bildet die (konkave) konische Geometrie einen Sitz für die (konvexe) sphärische Geometrie aus. Der Kontaktbereich reduziert sich in diesem Fall auf eine umlaufende Kontaktlinie, die eine Selbstzentrierung ermöglicht und zudem im Kontaktbereich eine hohe Dichtkraft aufweist. Auf zusätzliche Dichtmittel, wie beispielsweise einen Dichtring, kann daher verzichtet werden. Vorteilhafterweise ist auch hier die konvexe Geometrie am Anschlussstück des Druckgasbehälters und die konkave Geometrie am Anschlussstück der Speicherleitung ausgebildet.In the case of a spherical and a conical shaped connection geometry, the (concave) conical geometry forms a seat for the (convex) spherical geometry. In this case, the contact area is reduced to a circumferential contact line, which enables self-centering and also has a high sealing force in the contact area. Additional sealing means, such as a sealing ring, can therefore be dispensed with. Here, too, the convex geometry is advantageously formed on the connection piece of the compressed gas tank and the concave geometry on the connection piece of the accumulator line.
Des Weiteren wird vorgeschlagen, dass in die Anschlussgeometrie des Anschlussstücks der Speicherleitung ein Dichtring integriert ist, der unter einer axialen Vorspannung an der Anschlussgeometrie des Anschlussstücks des Druckgasbehälters anliegt. Dies ist insbesondere von Vorteil, wenn die beiden Anschlussgeometrien jeweils sphärisch geformt sind, so dass der Kontaktbereich nicht auf eine umlaufende Kontaktlinie reduziert ist. Darüber hinaus können mit Hilfe des Dichtrings Vibrationen kompensiert werden, denen insbesondere Speichervorrichtungen für mobile Anwendungen ausgesetzt sind, beispielsweise bei einer Fahrt über unebenes Gelände. Der Dichtring wandelt die Bewegungsenergie der Vibrationen in Verformungsenergie, so dass hierüber eine Dämpfung erreicht wird.Furthermore, it is proposed that a sealing ring be integrated into the connection geometry of the connection piece of the storage line, which sealing ring bears against the connection geometry of the connection piece of the compressed gas tank under axial prestress. This is particularly advantageous if the two connection geometries are each spherically shaped, so that the contact area is not reduced to a circumferential contact line. In addition, vibrations can be compensated with the help of the sealing ring to which memory devices for mobile applications in particular are exposed, for example when driving over uneven terrain. The sealing ring converts the kinetic energy of the vibrations into deformation energy, so that damping is achieved.
Ferner bevorzugt ist der Druckgasbehälter mittels einer Überwurfmutter an der Speicherleitung gehalten. Über die Halterung mittels der Überwurfmutter kann eine Axialkraft erzeugt werden, die den Dichtkontakt zwischen den beiden Anschlussstücken gewährleistet sowie eine Dichtkraft im Dichtkontakt bewirkt. Sofern der Dichtkontakt über einen Dichtring hergestellt ist, kann mit Hilfe der Überwurfmutter die notwendige axiale Vorspannkraft erzeugt werden, mittels welcher der Dichtring am Anschlussstück des Druckgasbehälters anliegt.Furthermore, the compressed gas tank is preferably held on the storage line by means of a union nut. An axial force can be generated via the mounting by means of the union nut, which ensures the sealing contact between the two connecting pieces and causes a sealing force in the sealing contact. If the sealing contact is made via a sealing ring, the necessary axial prestressing force can be generated with the aid of the union nut, by means of which the sealing ring rests on the connection piece of the compressed gas tank.
Bevorzugt ist die Überwurfmutter über eine Schraubverbindung mit dem Anschlussstück der Speicherleitung oder dem Anschlussstück des Druckgasbehälters verbunden und in axialer Richtung an einem Ringbund des jeweils anderen Anschlussstücks abgestützt. Über die Schraubverbindung kann der Druckgasbehälter einfach montiert und demontiert werden. Hierzu wird einfach die Schraubverbindung der Überwurfmutter mit der Speicherleitung oder dem Druckgasbehälter gelöst. Die Abstützung der Überwurfmutter am Ringbund des jeweils anderen Anschlussstücks muss keine Dichtheitsanforderungen erfüllen, da die Funktionen Halterung und Abdichtung vorliegend getrennt sind. Die Abdichtung wird über die Anschlussgeometrien der beiden Anschlussstücke bzw. einen zwischenliegenden Dichtring erzielt, so dass die Überwurfmutter lediglich die Funktion der Halterung übernehmen muss.The union nut is preferably connected to the connection piece of the storage line or the connection piece of the compressed gas tank via a screw connection and is supported in the axial direction on an annular collar of the respective other connection piece. The compressed gas tank can be easily assembled and disassembled via the screw connection. To do this, simply loosen the screw connection between the union nut and the storage line or the compressed gas tank. The support of the union nut on the annular collar of the respective other connection piece does not have to meet any tightness requirements, since the functions of holding and sealing are separate in the present case. The seal is achieved via the connection geometries of the two connection pieces or an intermediate sealing ring, so that the union nut only has to take over the function of the holder.
Der Ringbund, an dem die Überwurfmutter abgestützt ist, kann durch das jeweilige Anschlussstück, welches das Anschlussstück ist, das nicht mit der Überwurfmutter verschraubt ist, oder durch einen separaten Ring ausgebildet werden. Sofern letzteres der Fall ist, ist vorzugsweise der separate Ring mit Hilfe eines Sicherungsrings am entsprechenden Anschlussstück befestigt, so dass die Lage des Rings bzw. Ringbunds in Bezug auf das Anschlussstück fest vorgegeben ist.The annular collar on which the union nut is supported can be formed by the respective connection piece, which is the connection piece that is not screwed to the union nut, or by a separate ring. If the latter is the case, the separate ring is preferably fastened to the corresponding connecting piece with the aid of a locking ring, so that the position of the ring or annular collar in relation to the connecting piece is fixed.
Um die Funktion des Gelenks zwischen den beiden Anschlussstücken nicht zu beeinträchtigen, wird in Weiterbildung der Erfindung vorgeschlagen, dass die Überwurfmutter über eine sphärisch oder konisch geformte Stützgeometrie an einer sphärisch oder konisch geformten Stützgeometrie des Ringbunds axial abgestützt ist. Das heißt, dass die Überwurfmutter und der Ringbund ebenfalls gelenkig verbunden sind.In order not to impair the function of the joint between the two connecting pieces, it is proposed in a further development of the invention that the union nut is supported axially via a spherically or conically shaped support geometry on a spherically or conically shaped support geometry of the annular collar. This means that the union nut and the annular collar are also connected in an articulated manner.
Des Weiteren wird vorgeschlagen, dass die Überwurfmutter das den Ringbund aufweisende bzw. ausbildende Anschlussstück unter Ausbildung eines Ringspalts umgibt. Der Ringspalt gewährleistet den Freiraum, den die Überwurfmutter benötigt, um eine Relativbewegung gegenüber dem Ringbund des jeweiligen Anschlussstücks auszuführen.Furthermore, it is proposed that the union nut surrounds the connection piece that has or forms the annular collar, forming an annular gap. The annular gap ensures the free space that the union nut needs to move relative to the annular collar of the respective connection piece.
Gemäß einer bevorzugten Ausführungsform der Erfindung sind an die Speicherleitung mehrere Druckgasbehälter angeschlossen. Der Anschluss ist bei allen Druckgasbehältern gleich ausgebildet, so dass alle Druckgasbehälter über eine gelenkige Verbindung an die Speicherleitung angeschlossen sind. Die mehreren Druckgasbehälter sind vorzugsweise in Reihe angeordnet, so dass eine platzsparende Anordnung geschaffen wird. Durch die gereihte Anordnung kann insbesondere die Bauhöhe der Speichervorrichtung geringgehalten werden. Dies erweist sich vor allem bei mobilen Anwendungen als Vorteil, da üblicherweise die Speichervorrichtung unterhalb des Chassis eines Fahrzeugs angeordnet wird, so dass die Bauhöhe begrenzt ist. Als Druckgasbehälter kommen insbesondere Druckgasflaschen in Frage. Als Anschlussstück kann in diesem Fall ein Flaschenhals oder ein mit dem Flaschenhals verbundenes stutzenartiges Bauteil dienen.According to a preferred embodiment of the invention, several compressed gas tanks are connected to the storage line. The connection is the same for all compressed gas tanks, so that all compressed gas tanks are connected to the storage line via an articulated connection. The multiple compressed gas tanks are preferably arranged in a row, so that a space-saving arrangement is created. In particular, the overall height of the storage device can be kept low as a result of the arrangement in a row. This proves to be an advantage above all in mobile applications, since the storage device is usually arranged underneath the chassis of a vehicle, so that the overall height is limited. Compressed gas bottles in particular come into consideration as compressed gas containers. In this case, a bottleneck or a nozzle-like component connected to the bottleneck can serve as the connection piece.
Alternativ oder ergänzend wird vorgeschlagen, dass die mehreren Druckgasbehälter bzw. Druckgasflaschen über eine rahmenartige Struktur gelagert sind. Über die rahmenartige Struktur kann die gesamte Speichervorrichtung am Chassis eines Fahrzeugs befestigt werden, vorzugsweise unterhalb des Chassis.Alternatively or additionally, it is proposed that the multiple compressed gas tanks or compressed gas cylinders are mounted on a frame-like structure. The entire storage device can be attached to the chassis of a vehicle via the frame-like structure, preferably underneath the chassis.
Vorteilhafterweise ist der mindestens eine Druckgasbehälter in der rahmenartigen Struktur über ein Festlager und ein Loslager gelagert. Das Loslager ermöglicht, dass der Druckgasbehälter thermisch bedingte Längenänderungen ohne Zwängungen oder Spannungen ausführen kann. Dadurch kann die Robustheit der Speichervorrichtung weiter gesteigert werden. Vorzugsweise ist das Loslager näher an der Speicherleitung als das Festlager angeordnet. Da der Anschluss des Druckgasbehälters an der Speicherleitung als Gelenk ausgeführt ist, können die Längenänderungen und/oder Bewegungen des Druckgasbehälters gegenüber dem Loslager im Bereich des Anschlusses ausgeglichen werden.The at least one compressed gas tank is advantageously mounted in the frame-like structure via a fixed bearing and a floating bearing. The floating bearing allows the compressed gas tank to undergo thermally induced changes in length without constraints or tension. As a result, the robustness of the memory device can be further increased. The loose bearing is preferably arranged closer to the storage line than the fixed bearing. Since the connection of the compressed gas tank to the storage line is designed as a joint, the changes in length and/or movements of the compressed gas tank relative to the floating bearing in the area of the connection can be compensated.
Als weiterbildende Maßnahme wird vorgeschlagen, dass die Speicherleitung mit der rahmenartigen Struktur verbunden ist und die Verbindung, insbesondere zum Ausgleich von Längenänderungen des mindestens einen Druckgasbehälters, Relativbewegungen der Speicherleitung gegenüber der rahmenartigen Struktur zulässt. Die Verbindung kann beispielsweise eine Klemm- oder Klippverbindung sein. An der rahmenartigen Struktur können hierzu mehrere Befestigungspunkte vorgesehen sein, im Bereich welcher die Speicherleitung mittels Klemmen oder Klipse aufgesteckt wird. Zum Ausgleich thermisch bedingter Längenänderungen des Druckgasbehälters sollte die Verbindung insbesondere Bewegungen der Speicherleitung in Richtung der Längsachse des mindestens einen Druckgasbehälters zulassen.As a further development measure, it is proposed that the storage line is connected to the frame-like structure and the connection allows relative movements of the storage line with respect to the frame-like structure, in particular to compensate for changes in length of the at least one compressed gas tank. The connection can be a clamp or clip connection, for example. For this purpose, a number of attachment points can be provided on the frame-like structure, in the area in which the storage line is attached by means of clamps or clips. To compensate for thermally induced changes in length of the compressed gas tank, the connection should in particular allow movements of the storage line in the direction of the longitudinal axis of the at least one compressed gas tank.
Da die erfindungsgemäße Speichervorrichtung bevorzugt in einer mobilen Anwendung zum Einsatz gelangt, wird ferner ein Fahrzeug mit einer erfindungsgemäßen Speichervorrichtung vorgeschlagen. Bei dem Druckgas kann es sich in diesem Fall insbesondere um Wasserstoff zum Betreiben eines Brennstoffzellensystems oder eines Verbrennungsmotors handeln. Ferner kann es sich bei dem Druckgas um Erdgas handeln, das zum Betreiben eines Verbrennungsmotors mit Hilfe der erfindungsgemäßen Vorrichtung an Bord des Fahrzeugs bevorratet wird.Since the storage device according to the invention is preferably used in a mobile application, a vehicle with a storage device according to the invention is also proposed. In this case, the compressed gas can in particular be hydrogen for operating a fuel cell system or an internal combustion engine. Furthermore, the compressed gas can be natural gas, which is stored on board the vehicle for operating an internal combustion engine with the aid of the device according to the invention.
Bevorzugte Ausführungsformen der Erfindung werden nachfolgend anhand der beigefügten Zeichnungen näher erläutert. Diese zeigen:
-
Fig. 1 eine schematische Darstellung einer Speichervorrichtung a) in der Draufsicht und b) in einer Seitenansicht, -
Fig. 2 einen Längsschnitt durch eine erste erfindungsgemäße Speichervorrichtung im Anschlussbereich eines Druckgasbehälters an die Speicherleitung, -
Fig. 3 einen Längsschnitt durch eine zweite erfindungsgemäße Speichervorrichtung im Anschlussbereich eines Druckgasbehälters an die Speicherleitung, -
Fig. 4 einen Längsschnitt durch eine dritte erfindungsgemäße Speichervorrichtung im Anschlussbereich eines Druckgasbehälters an die Speicherleitung, -
Fig. 5 eine perspektivische Darstellung einer vierten erfindungsgemäßen Speichervorrichtung und -
Fig. 6 eine Seitenansicht einer fünften erfindungsgemäßen Speichervorrichtung.
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1 a schematic representation of a storage device a) in plan view and b) in a side view, -
2 a longitudinal section through a first storage device according to the invention in the connection area of a compressed gas tank to the storage line, -
3 a longitudinal section through a second storage device according to the invention in the connection area of a compressed gas tank to the storage line, -
4 a longitudinal section through a third storage device according to the invention in the connection area of a compressed gas tank to the storage line, -
figure 5 a perspective view of a fourth memory device according to the invention and -
6 a side view of a fifth memory device according to the invention.
Die in den
Der Ausgleich fertigungs- und/oder montagebedingter Toleranzen durch eine Verkippung der Druckgasbehälter 2 erfordert eine besondere Ausbildung des Anschlusses der Druckgasbehälter 2 an die Speicherleitung 1. Der Anschluss ist jeweils über ein stutzenartiges Anschlussstück 3 der Speicherleitung 1 und ein stutzenartiges Anschlussstück 4 des jeweiligen Druckgasbehälters 2 hergestellt. Mögliche Ausführungsformen werden nachfolgend anhand der
Der
Der Kontakt zwischen den beiden Anschlussgeometrien 6, 7 reduziert sich auf eine umlaufende Kontaktlinie, so dass bei der Montage des Druckgasbehälters 2 eine Selbstzentrierung des Druckgasbehälters 2 bewirkt wird. Das heißt, dass sich der Druckgasbehälter 2 selbst in Bezug auf die Anschlussgeometrie 6 des Anschlussstücks 3 der Speicherleitung 1 ausrichtet. Zugleich kann über den linearen Kontaktbereich eine hohe Dichtkraft erreicht werden.The contact between the two
Die Dichtkraft wird mit Hilfe einer Überwurfmutter 9 erzeugt, die einerseits über eine Schraubverbindung 10 mit dem Anschlussstück 4 des Druckgasbehälters 2 verbunden, andererseits an einem Ringbund 11 des Anschlussstücks 3 der Speicherleitung 1 axial abgestützt ist. Der Ringbund 11 ist vorliegend als separater Ring ausgeführt, der mittels eines Sicherungsrings 12 am Anschlussstück 3 der Speicherleitung 1 befestigt ist. Über die Einschraubtiefe des Anschlussstücks 4 des Druckgasbehälters 2 in die Überwurfmutter 9 kann die Dichtkraft eingestellt werden.The sealing force is generated with the aid of a
Damit die Funktion des Gelenks 5 durch die Halterung des Druckgasbehälters 2 mit Hilfe der Überwurfmutter 9 nicht beeinträchtigt wird, weist die Überwurfmutter 9 eine erste Stützgeometrie 13 auf, die mit einer am Ringbund 11 ausgebildeten zweiten Stützgeometrie 14 ebenfalls ein Gelenk ausbildend zusammenwirkt. Ein Ringspalt 15 zwischen der Überwurfmutter 9 und dem Anschlussstück 3 der Speicherleitung 1 gewährt den notwendigen Freiraum, damit sich der Druckgasbehälter 2 zusammen mit der Überwurfmutter 9 gegenüber dem Anschlussstück 3 der Speicherleitung 1 ausrichten können.So that the function of the joint 5 is not impaired by the holding of the compressed
Der
Im Übrigen entspricht die Ausführungsform der
Abweichend von der Darstellung der
Das Festlager 18 weist ein unteres Teil 18.1 und ein oberes Teil 18.2 auf. Das untere Teil 18.1, das durch eine stegartige Struktur gebildet wird, bewirkt insbesondere eine seitliche Stützung der Druckgasbehälter 2. Auf diese Weise können Vibrationen aufgefangen. Zugleich verhindern hochgezogene Abschnitte des unteren Teils 18.1, dass die Druckgasbehälter 2 einander berühren. Das obere Teil 18.2 des Festlagers 18 drückt den Druckgasbehälter 2 nach unten, das heißt, gegen das untere Teil 18.1 des Festlagers 18.The fixed bearing 18 has a lower part 18.1 and an upper part 18.2. The lower part 18.1, which is formed by a web-like structure, causes in particular a lateral support of the compressed
Das Loslager 19 weist ebenfalls ein unteres Teil 19.1 und ein oberes Teil 19.2 auf, wobei das obere Teil 19.2 keinen Druck auf die Druckgasbehälter 2 ausübt. Vorzugsweise hat das obere Teil 19.2 überhaupt keinen Kontakt zu den Druckgasbehältern 2, so dass diese sich, insbesondere in Richtung ihrer Längsachse, gegenüber dem Loslager 19 bewegen können.The loose bearing 19 also has a lower part 19.1 and an upper part 19.2, with the upper part 19.2 not exerting any pressure on the
Wie beispielhaft in der
Claims (12)
dadurch gekennzeichnet, dass zur Ausbildung des Gelenks (5) das stutzenartige Anschlussstück (3) der Speicherleitung (1) und das stutzenartige Anschlussstück (4) des Druckgasbehälters (2) jeweils eine sphärisch oder konisch geformte Anschlussgeometrie (6, 7) aufweisen.Storage device according to claim 1,
characterized in that to form the joint (5), the socket-like connection piece (3) of the storage line (1) and the socket-like connection piece (4) of the compressed gas tank (2) each have a spherically or conically shaped connection geometry (6, 7).
dadurch gekennzeichnet, dass in die Anschlussgeometrie (6) des Anschlussstücks (3) der Speicherleitung (1) ein Dichtring (8) integriert ist, der unter einer axialen Vorspannung an der Anschlussgeometrie (7) des Anschlussstücks (4) des Druckgasbehälters (2) anliegt.Storage device according to claim 2,
characterized in that a sealing ring (8) is integrated into the connection geometry (6) of the connection piece (3) of the storage line (1) and rests against the connection geometry (7) of the connection piece (4) of the compressed gas tank (2) under axial prestress .
dadurch gekennzeichnet, dass der Druckgasbehälter (2) mittels einer Überwurfmutter (9) an der Speicherleitung (1) gehalten ist.Storage device according to one of the preceding claims,
characterized in that the compressed gas tank (2) is held on the storage line (1) by means of a union nut (9).
dadurch gekennzeichnet, dass die Überwurfmutter (9) über eine Schraubverbindung (10) mit dem Anschlussstück (3) der Speicherleitung (1) oder dem Anschlussstück (4) des Druckgasbehälters (2) verbunden und in axialer Richtung an einem Ringbund (11) des jeweils anderen Anschlussstücks (4, 3) abgestützt ist.Storage device according to claim 4,
characterized in that the union nut (9) is connected via a screw connection (10) to the connection piece (3) of the storage line (1) or the connection piece (4) of the compressed gas tank (2) and in the axial direction to an annular collar (11) of the respective other connector (4, 3) is supported.
dadurch gekennzeichnet, dass der Ringbund (11) durch das jeweilige Anschlussstück (3, 4) oder durch einen separaten Ring ausgebildet wird, der vorzugsweise mit Hilfe eines Sicherungsrings (12) am entsprechenden Anschlussstück (3, 4) befestigt ist.Storage device according to claim 5,
characterized in that the annular collar (11) is formed by the respective connecting piece (3, 4) or by a separate ring which is preferably fastened to the corresponding connecting piece (3, 4) with the aid of a locking ring (12).
dadurch gekennzeichnet, dass die Überwurfmutter (9) über eine sphärisch oder konisch geformte Stützgeometrie (13) an einer sphärisch oder konisch geformten Stützgeometrie (14) des Ringbunds (11) axial abgestützt ist.Storage device according to claim 5 or 6,
characterized in that the union nut (9) is axially supported via a spherically or conically shaped support geometry (13) on a spherically or conically shaped support geometry (14) of the annular collar (11).
dadurch gekennzeichnet, dass die Überwurfmutter (9) das den Ringbund (11) aufweisende bzw. ausbildende Anschlussstück (4, 3) unter Ausbildung eines Ringspalts (15) umgibt.Storage device according to one of claims 4 to 7,
characterized in that the union nut (9) surrounds the connecting piece (4, 3) having or forming the annular collar (11), forming an annular gap (15).
dadurch gekennzeichnet, dass an die Speicherleitung (1) mehrere Druckgasbehälter (2) angeschlossen sind, die vorzugsweise in Reihe angeordnet und/oder über eine rahmenartige Struktur (16) gelagert sind.Storage device according to one of the preceding claims,
characterized in that several pressurized gas containers (2) are connected to the storage line (1), which are preferably arranged in a row and/or mounted on a frame-like structure (16).
dadurch gekennzeichnet, dass der mindestens eine Druckgasbehälter (2) in der rahmenartigen Struktur (16) über ein Festlager (18) und ein Loslager (19) gelagert ist, wobei vorzugsweise das Loslager (19) näher an der Speicherleitung (1) angeordnet ist.Storage device according to claim 9,
characterized in that the at least one compressed gas tank (2) is mounted in the frame-like structure (16) via a fixed bearing (18) and a floating bearing (19), the floating bearing (19) preferably being arranged closer to the storage line (1).
dadurch gekennzeichnet, dass die Speicherleitung (1) mit der rahmenartigen Struktur (16) verbunden ist und die Verbindung, insbesondere zum Ausgleich von Längenänderungen des mindestens einen Druckgasbehälters (2), Relativbewegungen der Speicherleitung (1) gegenüber der rahmenartigen Struktur (16) zulässt.Storage device according to claim 9 or 10,
characterized in that the storage line (1) is connected to the frame-like structure (16) and the connection allows relative movements of the storage line (1) in relation to the frame-like structure (16), in particular to compensate for changes in length of the at least one compressed gas tank (2).
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EP21167195.3A EP4071401A1 (en) | 2021-04-07 | 2021-04-07 | Storage device for compressed gas, vehicle |
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1117943A (en) * | 1965-09-24 | 1968-06-26 | Smith & Davis Ltd | Improvements in connectors for connecting hose-pipes to water supply taps or the like |
DE2631984A1 (en) * | 1976-07-16 | 1978-01-19 | Schenk Horst | Screw coupling with welding nozzle for pipework - has nozzle thicker part contacting sealed spherical seat in socket |
US20110272048A1 (en) * | 2010-05-06 | 2011-11-10 | Eugen Seitz Ag | Arrangement of pulse-modulated quick-acting valves, tank system, method for preparing a required mass flow and use of a tank system |
DE102017004451A1 (en) | 2017-05-09 | 2018-11-15 | Daimler Ag | Storage device for compressed gas |
WO2019233677A1 (en) * | 2018-06-07 | 2019-12-12 | Robert Bosch Gmbh | Tank device for the temperature pressure relief of a fuel cell tank |
US10525824B2 (en) * | 2017-08-09 | 2020-01-07 | Toyota Jidosha Kabushiki Kaisha | High-pressure vessel unit |
DE102019202895A1 (en) * | 2019-03-04 | 2020-09-10 | Audi Ag | Storage module with multiple tubular pressure tanks and assembly method |
-
2021
- 2021-04-07 EP EP21167195.3A patent/EP4071401A1/en not_active Withdrawn
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1117943A (en) * | 1965-09-24 | 1968-06-26 | Smith & Davis Ltd | Improvements in connectors for connecting hose-pipes to water supply taps or the like |
DE2631984A1 (en) * | 1976-07-16 | 1978-01-19 | Schenk Horst | Screw coupling with welding nozzle for pipework - has nozzle thicker part contacting sealed spherical seat in socket |
US20110272048A1 (en) * | 2010-05-06 | 2011-11-10 | Eugen Seitz Ag | Arrangement of pulse-modulated quick-acting valves, tank system, method for preparing a required mass flow and use of a tank system |
DE102017004451A1 (en) | 2017-05-09 | 2018-11-15 | Daimler Ag | Storage device for compressed gas |
US10525824B2 (en) * | 2017-08-09 | 2020-01-07 | Toyota Jidosha Kabushiki Kaisha | High-pressure vessel unit |
WO2019233677A1 (en) * | 2018-06-07 | 2019-12-12 | Robert Bosch Gmbh | Tank device for the temperature pressure relief of a fuel cell tank |
KR20210016456A (en) * | 2018-06-07 | 2021-02-15 | 로베르트 보쉬 게엠베하 | Tank device for temperature-sensitive pressure relief of fuel cell tanks |
DE102019202895A1 (en) * | 2019-03-04 | 2020-09-10 | Audi Ag | Storage module with multiple tubular pressure tanks and assembly method |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102022129587A1 (en) | 2022-11-09 | 2024-05-16 | Bayerische Motoren Werke Aktiengesellschaft | Mounting device for holding tank bottles |
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