DE102018222302B4 - Method for producing a pressure tank for storing fuel in a motor vehicle and a pressure tank produced therewith - Google Patents
Method for producing a pressure tank for storing fuel in a motor vehicle and a pressure tank produced therewith Download PDFInfo
- Publication number
- DE102018222302B4 DE102018222302B4 DE102018222302.5A DE102018222302A DE102018222302B4 DE 102018222302 B4 DE102018222302 B4 DE 102018222302B4 DE 102018222302 A DE102018222302 A DE 102018222302A DE 102018222302 B4 DE102018222302 B4 DE 102018222302B4
- Authority
- DE
- Germany
- Prior art keywords
- mandrel
- pressure tank
- tubular
- hose
- end pieces
- 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.)
- Expired - Fee Related
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
- B29C70/521—Pultrusion, i.e. forming and compressing by continuously pulling through a die and impregnating the reinforcement before the die
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/06—Fibrous reinforcements only
- B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
- B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
- B29C70/86—Incorporated in coherent impregnated reinforcing layers, e.g. by winding
- B29C70/865—Incorporated in coherent impregnated reinforcing layers, e.g. by winding completely encapsulated
-
- 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
- F17C1/02—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge involving reinforcing arrangements
- F17C1/04—Protecting sheathings
- F17C1/06—Protecting sheathings built-up from wound-on bands or filamentary material, e.g. wires
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7154—Barrels, drums, tuns, vats
- B29L2031/7156—Pressure vessels
-
- 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
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/05—Size
- F17C2201/056—Small (<1 m3)
-
- 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
-
- 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
-
- 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
- F17C2203/0636—Metals
-
- 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
- F17C2203/066—Plastics
-
- 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
-
- 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
- F17C2205/0311—Closure means
-
- 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
- F17C2205/0388—Arrangement of valves, regulators, filters
- F17C2205/0394—Arrangement of valves, regulators, filters in direct contact with the pressure vessel
- F17C2205/0397—Arrangement of valves, regulators, filters in direct contact with the pressure vessel on both sides of the pressure vessel
-
- 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
- F17C2209/00—Vessel construction, in particular methods of manufacturing
- F17C2209/23—Manufacturing of particular parts or at special locations
- F17C2209/234—Manufacturing of particular parts or at special locations of closing end pieces, e.g. caps
-
- 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
-
- 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
-
- 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)
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- General Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Moulding By Coating Moulds (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
Verfahren zum Herstellen eines Drucktanks (100) zur Speicherung von Brennstoff in einem Kraftfahrzeug, mit den Schritten:- Bereitstellen eines rohr- oder schlauchartigen Halbzeugs (12), wobei das rohr- oder schlauchartige Halbzeug (12) eine Wanddicke von mindestens 2 mm, jedoch nicht mehr als 5 mm aufweist;- Aufziehen des rohr- oder schlauchartigen Halbzeugs (12) auf einen Dorn (250);- Aufbringen einer Faserummantelung (14) auf das Halbzeug (12) mittels eines Pultrusionsprozesses, wobei in einem kontinuierlichen Prozess ohne Verformung des Halbzeugs (12) ein mehrlagiger zylindrischer Hohlkörperstrang (110') mit geflechtartigen Umfangswicklungen erzeugt wird;- Abschneiden eines Strangstücks (110) mit gewünschter Länge vom Hohlkörperstrang (110'), wobei das Abschneiden vor, bei oder nach dem Entfernen des Dorns (250) erfolgt;- Verschließen der Stirnseiten des Strangstücks (110) mit Endstücken (120), wobei die Endstücke (120) in die offenen stirnseitigen Enden des Strangstücks (110) eingepresst, eingeklebt und/oder eingeschraubt werden.Method for producing a pressure tank (100) for storing fuel in a motor vehicle, with the following steps: - Providing a tubular or hose-like semi-finished product (12), the tubular or hose-like semi-finished product (12) having a wall thickness of at least 2 mm, however not more than 5 mm; - pulling the tubular or hose-like semifinished product (12) onto a mandrel (250); - applying a fiber sheath (14) to the semifinished product (12) by means of a pultrusion process, with the Semi-finished product (12) a multilayered cylindrical hollow body strand (110 ') with braid-like circumferential windings is produced; - Cutting off a strand piece (110) of the desired length from the hollow body strand (110'), the cutting off before, during or after the removal of the mandrel (250) - Closing of the front sides of the string section (110) with end pieces (120), the end pieces (120) being inserted into the open front ends of the string section (110) pressed, glued and / or screwed in.
Description
Die Erfindung betrifft ein Verfahren zum Herstellen eines Drucktanks zur Speicherung von Brennstoff in einem Kraftfahrzeug. Die Erfindung betrifft ferner einen erfindungsgemäß hergestellten Drucktank.The invention relates to a method for producing a pressure tank for storing fuel in a motor vehicle. The invention also relates to a pressure tank produced according to the invention.
Drucktanks der hier betreffenden Art werden in Kraftfahrzeugen zur Speicherung von Brennstoff, insbesondere zur Speicherung von Wasserstoff für einen Brennstoffzellenantrieb oder zur Speicherung von Gas für einen Gasantrieb, verwendet. Solche Drucktanks sollen einerseits stabil sein, um den hohen Innendrücken (bis zu 750 bar und mehr) standzuhalten und gegebenenfalls auch Kräfte und Momente im Kraftfahrzeug zu übertragen, und sollen andererseits leicht sein.Pressure tanks of the type in question are used in motor vehicles for storing fuel, in particular for storing hydrogen for a fuel cell drive or for storing gas for a gas drive. Such pressure tanks should on the one hand be stable in order to withstand the high internal pressures (up to 750 bar and more) and, if necessary, also transmit forces and moments in the motor vehicle, and on the other hand should be light.
Um diesen mitunter widersprüchlichen Anforderungen gerecht zu werden, sind aus dem Stand der Technik Druckstanks bekannt, die einen sogenannten Liner (Innenhülle) sowie mindestens eine außen auf dem Liner aufgebrachte faserverstärkte Materialschicht (Faserummantelung) aufweisen. Für die serienmäßige Herstellung solcher Druckstanks haben sich Wickelverfahren, bei denen eine Wickelmaschine ein Faserband oder dergleichen auf den Liner aufbringt, durchgesetzt. Zum Stand der Technik wird auf die
Ferner ist aus der
Die
Die
Mit dem erfindungsgemäßen Verfahren des Patentanspruchs 1 wird nun ein weiteres spezielles Verfahren zum Herstellen eines Drucktanks vorgestellt, das sehr kurze Taktzeiten ermöglicht und somit insbesondere für die Serienfertigung von Drucktanks geeignet ist. Mit dem nebengeordneten Patentanspruch erstreckt sich die Erfindung auch auf einen mit dem erfindungsgemäßen Verfahren hergestellten Drucktank. Bevorzugte Weiterbildungen und Ausgestaltungen der Erfindung ergeben sich analog für beide Erfindungsgegenstände aus den abhängigen Patentansprüchen, der nachfolgenden Erfindungsbeschreibung und der Zeichnung.With the method according to the invention of claim 1, a further special method for producing a pressure tank is now presented, which enables very short cycle times and is therefore particularly suitable for the series production of pressure tanks. With the independent patent claim, the invention also extends to a pressure tank produced using the method according to the invention. Preferred further developments and refinements of the invention result analogously for both subjects of the invention from the dependent patent claims, the following description of the invention and the drawing.
Das erfindungsgemäße Verfahren zum Herstellen eines Drucktanks zur Speicherung von Brennstoff in einem Kraftfahrzeug umfasst zumindest die folgenden Schritte, die insbesondere automatisiert ausgeführt werden:
- - Bereitstellen eines rohr- oder schlauchartigen Halbzeugs, wobei das rohr- oder schlauchartige Halbzeug eine Wanddicke von mindestens 2 mm, jedoch nicht mehr als 5 mm aufweist;
- - Aufziehen des rohr- oder schlauchartigen Halbzeugs auf einen Dorn;
- - Aufbringen einer Faserummantelung auf das Halbzeug mittels eines Pultrusionsprozesses, wobei in einem kontinuierlichen Prozess ohne Verformung des Halbzeugs ein mehrlagiger zylindrischer Hohlkörperstrang mit geflechtartigen Umfangswicklungen erzeugt wird;
- - Abschneiden eines Strangstücks mit gewünschter Länge vom Hohlkörperstrang wobei das Abschneiden vor, bei oder nach dem Entfernen des Dorns erfolgt.
- - Verschließen der offenen Stirnseiten des Strangstücks mit Endstücken, wobei die Endstücke in die offenen stirnseitigen Enden des Strangstücks eingepresst, eingeklebt und/oder eingeschraubt werden.
- - Provision of a tubular or hose-like semi-finished product, the tubular or hose-like semi-finished product having a wall thickness of at least 2 mm, but not more than 5 mm;
- - Pulling the tubular or hose-like semi-finished product onto a mandrel;
- Application of a fiber sheathing to the semifinished product by means of a pultrusion process, a multi-layer, cylindrical hollow body strand with braid-like circumferential windings being produced in a continuous process without deforming the semifinished product;
- - Cutting off a strand piece with the desired length from the hollow body strand, the cutting taking place before, during or after the removal of the mandrel.
- - Closing the open end faces of the string section with end pieces, the end pieces being pressed, glued and / or screwed into the open front ends of the string section.
Die Erfindung sieht also vor, dass zunächst ein zylindrischer Hohlkörper erzeugt wird, der im Weiteren als Drucktankwandung fungiert. Erfindungsgemäß wird hierzu auf das rohr- oder schlauchartige Halbzeug, das insbesondere aus Kunststoff (z. B. Polyethylen oder Polyamid) oder Metall (z. B. Aluminium) gebildet ist, über den gesamten Umfang mittels Pultrusion wenigstens eine aus faserverstärktem Kunststoff gebildete äußere Verstärkungsschicht aufgebracht, sodass sich ein Hohlkörper mit einer wenigstens zweilagigen, laminatähnlich aufgebauten Wandung ergibt, wobei die innere, aus dem rohr- oder schlauchartigen Halbzeug erzeugte Lage bzw. Schicht den Liner und die äußere, durch Pultrusion erzeugte Lage bzw. Schicht die Faserummantelung (genau genommen eine Faser-Kunststoff-Ummantelung) bildet. Der zylindrische Hohlkörper wird dann, nachdem dieser gegebenenfalls noch auf eine vorgesehene axiale Länge zugeschnitten wurde, an seinen beiden offenen Enden bzw. Stirnseiten mittels Endstücken dicht verschlossen, womit der Drucktank im Wesentlichen fertiggestellt ist. Die Endstücke dienen bei entsprechender Ausgestaltung gleichzeitig auch dem Anschluss des Drucktanks.The invention therefore provides that a cylindrical hollow body is initially produced, which subsequently functions as a pressure tank wall. According to the invention, at least one outer reinforcement layer made of fiber-reinforced plastic is applied over the entire circumference by means of pultrusion to the tubular or hose-like semi-finished product, which is made in particular of plastic (e.g. polyethylene or polyamide) or metal (e.g. aluminum) applied, so that a hollow body with an at least two-layer, laminate-like structure results, with the inner layer or layer produced from the tubular or hose-like semi-finished product being the liner and the outer layer or layer produced by pultrusion being the fiber cladding (more precisely a fiber-plastic sheathing). The cylindrical hollow body is then, after it has optionally also been cut to an intended axial length, tightly closed at its two open ends or front sides by means of end pieces, with which the pressure tank is essentially completed. With an appropriate configuration, the end pieces also serve to connect the pressure tank.
Das erfindungsgemäße Verfahren weist die Besonderheit auf, dass die Faserummantelung nicht in einem Wickelprozess, sondern in einem Pultrusionsprozess erzeugt wird. Der Pultrusionsprozess wird mittels einer Pultrusionsanlage ausgeführt (wie bspw. in der Zeichnung gezeigt). Der Pultrusionsprozess wird auch als Strangziehverfahren bezeichnet und ist als solcher aus dem Stand der Technik, insbesondere für die Fertigung von faserverstärkten Kunststoffprofilen, bekannt. Im Weiteren wird auf entsprechende Fachliteratur verwiesen oder auch auf den deutschsprachigen Wikipedia-Artikel zum „Strangziehen“. Der Pultrusionsprozess wird erfindungsgemäß nun dazu genutzt, auf das rohr- oder schlauchartige Halbzeug eine Faserummantelung aufzubringen. Im Vergleich zum herkömmlichen Wickelprozess ergibt sich eine wesentlich kürzere Taktzeit und dadurch verbesserte Wirtschaftlichkeit. Ferner ergibt sich eine größere Herstellungsflexibilität, insbesondere hinsichtlich einer gewünschten Drucktanklänge.The method according to the invention has the special feature that the fiber cladding is not produced in a winding process, but in a pultrusion process. The pultrusion process is carried out by means of a pultrusion system (as shown, for example, in the drawing). the The pultrusion process is also referred to as an extrusion process and is known as such from the prior art, in particular for the production of fiber-reinforced plastic profiles. Furthermore, reference is made to the relevant specialist literature or to the German-language Wikipedia article on “pulling the rope”. The pultrusion process is now used according to the invention to apply a fiber coating to the tubular or hose-like semi-finished product. Compared to the conventional winding process, the cycle time is significantly shorter and, as a result, improved economic efficiency. Furthermore, there is greater manufacturing flexibility, in particular with regard to a desired pressure tank length.
Für den Pultrusionsvorgang kann die Eigenstabilität des rohr- oder schlauchartigen Halbzeugs ausreichend sein. Hierbei ist vorgesehen, dass das rohr- oder schlauchartige Halbzeug eine Wanddicke von mindestens 2 mm jedoch nicht mehr als 5 mm betragen sollte.The inherent stability of the tubular or hose-like semi-finished product can be sufficient for the pultrusion process. It is provided here that the tubular or hose-like semi-finished product should have a wall thickness of at least 2 mm but not more than 5 mm.
Beim Pultrusionsvorgang wird ein Dorn verwendet, der als stabilisierender Stützkörper, insbesondere auch als formvorgebender Stützkörper, fungiert.In the pultrusion process, a mandrel is used that acts as a stabilizing support body, in particular also as a shape-defining support body.
Der Pultrusionsprozess ist hierbei ein kontinuierlicher Prozess, bei dem ein mehrlagiger zylindrischer Hohlkörperstrang mit geflechtartigen Umwicklungen erzeugt wird (bspw. mit einer Produktionsgeschwindigkeit von bis zu 0,7 m/min). Von diesem Hohlkörperstrang können dann mit gewünschter (axialer) Länge Strangstücke abgeschnitten werden. Das Abschneiden kann bspw. vor, bei oder nach dem Entfernen des Dorns erfolgen. Die auf diese Weise erzeugten Hohlkörper werden dann an ihren Stirnseiten mittels Endstücken verschlossen.
Die Endstücke können in die offenen stirnseitigen Enden des Hohlkörpers eingepresst, eingeklebt und/oder eingeschraubt werden. Zur Abdichtung können ferner Dichtungen, wie bspw. O-Ringe, verwendet werden.The pultrusion process is a continuous process in which a multi-layer, cylindrical hollow body strand with braid-like wraps is produced (e.g. at a production speed of up to 0.7 m / min). From this hollow body strand, strand pieces can then be cut off with the desired (axial) length. The cutting can take place, for example, before, during or after the removal of the mandrel. The hollow bodies produced in this way are then closed at their end faces by means of end pieces.
The end pieces can be pressed, glued and / or screwed into the open front ends of the hollow body. Seals, such as, for example, O-rings, can also be used for sealing.
Bevorzugt wird für den kontinuierlichen Pultrusionsprozess ein mitlaufender segmentierter Dorn verwendet, der insbesondere mehrere, in Durchlaufrichtung hintereinander angeordnete Dornsegmente aufweist, die in einem Kreislauf nach der Pultrusionsanlage vom Dorn getrennt und vor der Pultrusionsanlage wieder an den Dorn angesetzt werden.A segmented mandrel moving along with it is preferably used for the continuous pultrusion process, which in particular has several mandrel segments arranged one behind the other in the direction of passage, which are separated from the mandrel in a circuit after the pultrusion system and attached to the mandrel before the pultrusion system.
Bevorzugt wird an wenigstens einem der Endstücke ein Anschlussgewinde für ein Ventil ausgebildet. In ein solches Anschlussgewinde kann auch ein Blindstopfen eingeschraubt werden, wenn am betreffenden Ende des Drucktanks kein Anschluss vorgesehen ist. Die Endstücke können aus Metall gefertigt sein. Die Endstücke können auch aus Kunststoff (z. B. Polyamid) gefertigt sein und können gegebenenfalls einen metallischen Gewindeeinsatz aufweisen.A connection thread for a valve is preferably formed on at least one of the end pieces. A blind plug can also be screwed into such a connection thread if no connection is provided at the relevant end of the pressure tank. The end pieces can be made of metal. The end pieces can also be made of plastic (e.g. polyamide) and can optionally have a metallic thread insert.
Die Erfindung wird nachfolgend anhand der Zeichnung näher erläutert. Die in den Figuren der Zeichnung gezeigten und/oder nachfolgend erläuterten Merkmale können, auch unabhängig von bestimmten Merkmalskombinationen, allgemeine Merkmale der Erfindung sein und die Erfindung entsprechend weiterbilden.
-
1 veranschaulicht schematisch einen Pultrusionsprozess. -
2 veranschaulicht schematisch das Verschließen der Stirnseiten an einem zylindrischen Hohlkörper, der mit dem in1 gezeigten Pultrusionsprozess hergestellt wurde. -
3 zeigt einen erfindungsgemäß hergestellten röhrenförmigen Drucktank.
-
1 schematically illustrates a pultrusion process. -
2 illustrates schematically the closing of the end faces on a cylindrical hollow body, which is connected to the in1 shown pultrusion process. -
3 shows a tubular pressure tank made in accordance with the invention.
Der in
Die
Für die Herstellung ist ein Dorn
Anstatt eines mitlaufenden Dorns
Von dem in der Pultrusionsanlage
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018222302.5A DE102018222302B4 (en) | 2018-12-19 | 2018-12-19 | Method for producing a pressure tank for storing fuel in a motor vehicle and a pressure tank produced therewith |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018222302.5A DE102018222302B4 (en) | 2018-12-19 | 2018-12-19 | Method for producing a pressure tank for storing fuel in a motor vehicle and a pressure tank produced therewith |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102018222302A1 DE102018222302A1 (en) | 2020-06-25 |
DE102018222302B4 true DE102018222302B4 (en) | 2021-08-19 |
Family
ID=70969745
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102018222302.5A Expired - Fee Related DE102018222302B4 (en) | 2018-12-19 | 2018-12-19 | Method for producing a pressure tank for storing fuel in a motor vehicle and a pressure tank produced therewith |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102018222302B4 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019202895B4 (en) | 2019-03-04 | 2021-08-19 | Audi Ag | Storage module with several tubular pressure tanks |
DE102019212540B4 (en) | 2019-08-21 | 2021-08-19 | Audi Ag | Tubular pressure tank for storing fuel in a motor vehicle and manufacturing process (II) |
DE102019130276B4 (en) | 2019-11-11 | 2021-08-19 | Audi Ag | Process for the production of a pressure tank for the storage of fuel in a motor vehicle and a pressure tank produced therewith |
DE102019130278B4 (en) | 2019-11-11 | 2021-07-29 | Audi Ag | Process for the production of a pressure tank for the storage of fuel in a motor vehicle and the pressure tank produced therewith (II) |
DE102019130283B4 (en) | 2019-11-11 | 2021-07-29 | Audi Ag | Process for the production of a pressure tank for the storage of fuel in a motor vehicle and the pressure tank produced therewith (III) |
JP7380474B2 (en) * | 2020-07-31 | 2023-11-15 | トヨタ自動車株式会社 | High pressure tank and high pressure tank manufacturing method |
CN116373352B (en) * | 2023-04-24 | 2023-10-13 | 常州市新创智能科技有限公司 | Deformation correction method and device for composite material pultrusion part |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19832145A1 (en) | 1998-07-17 | 2000-02-03 | Linnemann Schnetzer Gmbh | Pipe-shaped composite material container for pressurized fluid medium has inward-curved end plugs minimizing losses due to weeping |
DE60301400T2 (en) | 2002-04-08 | 2006-06-01 | Snecma Propulsion Solide (Société anonyme) | PRESSURIZED FLUID CONTAINERS, IN PARTICULAR PRESSURE GAS CONTAINERS FOR A MOTOR VEHICLE |
DE102011085962A1 (en) | 2011-11-08 | 2013-05-23 | Leichtbau-Zentrum Sachsen Gmbh | Profile shaft for use with internal profile made of fiber composite material in drive shaft of aircraft and motor vehicle, has area that forms profile shell, where profile shell has profiled cross-section with tooth bases and tooth points |
WO2013142178A1 (en) | 2012-03-22 | 2013-09-26 | Mag Ias, Llc | Method of manufacturing a compressed gas cylinder |
US20150192251A1 (en) | 2014-01-07 | 2015-07-09 | Composite Technology Development, Inc. | High pressure carbon composite pressure vessel |
DE102014215718A1 (en) | 2014-08-08 | 2016-02-11 | Bayerische Motoren Werke Aktiengesellschaft | High pressure gas container for a motor vehicle and method for producing a high pressure gas container |
DE102017107110A1 (en) | 2016-04-08 | 2017-10-12 | Toyota Jidosha Kabushiki Kaisha | MANUFACTURING PROCESS FOR A TANK |
US20180195668A1 (en) | 2017-01-06 | 2018-07-12 | Toyota Jidosha Kabushiki Kaisha | High-pressure container |
-
2018
- 2018-12-19 DE DE102018222302.5A patent/DE102018222302B4/en not_active Expired - Fee Related
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19832145A1 (en) | 1998-07-17 | 2000-02-03 | Linnemann Schnetzer Gmbh | Pipe-shaped composite material container for pressurized fluid medium has inward-curved end plugs minimizing losses due to weeping |
DE60301400T2 (en) | 2002-04-08 | 2006-06-01 | Snecma Propulsion Solide (Société anonyme) | PRESSURIZED FLUID CONTAINERS, IN PARTICULAR PRESSURE GAS CONTAINERS FOR A MOTOR VEHICLE |
DE102011085962A1 (en) | 2011-11-08 | 2013-05-23 | Leichtbau-Zentrum Sachsen Gmbh | Profile shaft for use with internal profile made of fiber composite material in drive shaft of aircraft and motor vehicle, has area that forms profile shell, where profile shell has profiled cross-section with tooth bases and tooth points |
WO2013142178A1 (en) | 2012-03-22 | 2013-09-26 | Mag Ias, Llc | Method of manufacturing a compressed gas cylinder |
US20150192251A1 (en) | 2014-01-07 | 2015-07-09 | Composite Technology Development, Inc. | High pressure carbon composite pressure vessel |
DE102014215718A1 (en) | 2014-08-08 | 2016-02-11 | Bayerische Motoren Werke Aktiengesellschaft | High pressure gas container for a motor vehicle and method for producing a high pressure gas container |
DE102017107110A1 (en) | 2016-04-08 | 2017-10-12 | Toyota Jidosha Kabushiki Kaisha | MANUFACTURING PROCESS FOR A TANK |
US20180195668A1 (en) | 2017-01-06 | 2018-07-12 | Toyota Jidosha Kabushiki Kaisha | High-pressure container |
Also Published As
Publication number | Publication date |
---|---|
DE102018222302A1 (en) | 2020-06-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE102018222302B4 (en) | Method for producing a pressure tank for storing fuel in a motor vehicle and a pressure tank produced therewith | |
DE102006031326B4 (en) | Mold core and method for producing a fiber composite component for the aerospace industry | |
DE3113791A1 (en) | "TUBULAR HOLLOW BODY, PROCESS FOR ITS PRODUCTION AND DEVICE FOR IMPLEMENTING THE PROCESS" | |
DE2422304A1 (en) | PROCESS FOR MANUFACTURING FIBER-REINFORCED PLASTIC PIPE | |
DE102010013713A1 (en) | Method and apparatus for producing a fiber-reinforced thermoplastic composite component | |
DE102019006280A1 (en) | Process for the production of a positive load introduction for rod-shaped fiber bundle structures and their design | |
DE102016202012B3 (en) | Process for the production of a structural element from fiber composite hollow profile and load introduction element | |
DE102019127919A1 (en) | Method of manufacturing a high pressure tank | |
WO2016066239A1 (en) | Compressed gas container | |
DE102014115619A1 (en) | Spiral spring and related manufacturing process | |
DE102015102440B4 (en) | Process for producing a fiber composite hollow body with a helical contour | |
EP3057779A1 (en) | Method for producing a reinforced fiber composite component | |
DE102014019080A1 (en) | Process for producing a fiber-reinforced structural component | |
DE102011007361A1 (en) | Method for manufacturing pressure tank i.e. type 3 pressure tank, for motor car for storing hydrogen, involves pre-tensioning metallic liner in longitudinal direction until curing matrix material, and applying composite material on liner | |
DE102018210788A1 (en) | Manufacturing process for a fiber reinforced container | |
WO2022248598A1 (en) | Method for producing a split tube or a split tube cup for a wet rotor pump, and wet rotor pump with split tube or split tube cup | |
DE102017211419A1 (en) | Method for producing a fiber-reinforced component for a motor vehicle and fiber-reinforced component | |
DE102004028075B4 (en) | Process for producing a fiber composite semifinished product | |
EP1287973B1 (en) | Apparatus and process for manufacturing plastic-metal-plastic multilayered tubes | |
DE10304044A1 (en) | Resin infusion process for production of fiber composite roll tubes involves use of flow tubes to increase resin distribution rate through fiber reinforcement | |
EP1322888B1 (en) | Tubular conduit or container for transporting or storing cryogenic media and method for producing the same | |
WO2016096061A1 (en) | Profiled part, and method for producing a profiled part | |
DE2065706A1 (en) | Reinforced plastic tube - comprises a knitted tubular sheath impregnated with heat setting resin | |
DE102014008644B4 (en) | Process for producing a hollow body from a fiber composite plastic | |
DE102012211651A1 (en) | Winding tube manufacturing method, involves producing continuous fiber sheet, and integrating continuous fiber sheet facing away from core at outer side of inner tube layer heated to its melting temperature |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
R012 | Request for examination validly filed | ||
R016 | Response to examination communication | ||
R018 | Grant decision by examination section/examining division | ||
R020 | Patent grant now final | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |