EP2768657A1 - Compressed gas tank and method for producing same - Google Patents

Compressed gas tank and method for producing same

Info

Publication number
EP2768657A1
EP2768657A1 EP12769918.9A EP12769918A EP2768657A1 EP 2768657 A1 EP2768657 A1 EP 2768657A1 EP 12769918 A EP12769918 A EP 12769918A EP 2768657 A1 EP2768657 A1 EP 2768657A1
Authority
EP
European Patent Office
Prior art keywords
gas tank
compressed gas
core
carbon fiber
struts
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Withdrawn
Application number
EP12769918.9A
Other languages
German (de)
French (fr)
Inventor
Andreas Knoop
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mercedes Benz Group AG
Original Assignee
Daimler AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Daimler AG filed Critical Daimler AG
Publication of EP2768657A1 publication Critical patent/EP2768657A1/en
Withdrawn legal-status Critical Current

Links

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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
    • B29C33/52—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles soluble or fusible
    • 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
    • B29C70/24—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in at least three directions forming a three dimensional structure
    • 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
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/32—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core on a rotating mould, former or core
    • 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
    • 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
    • F17C1/08—Integral reinforcements, e.g. ribs
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
    • B29C33/52—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles soluble or fusible
    • B29C2033/525—Cores made of frozen liquids, e.g. ice
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2891/00—Use of waxes as mould material
    • 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
    • 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
    • F17C2203/0617—Single wall with one layer
    • 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
    • F17C2203/0658—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
    • 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
    • F17C2203/0673—Polymers
    • 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
    • F17C2209/21—Shaping processes
    • F17C2209/2109—Moulding
    • F17C2209/2136—Moulding using wax moulds
    • 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
    • F17C2209/21—Shaping processes
    • F17C2209/2154—Winding
    • 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
    • F17C2209/21—Shaping processes
    • F17C2209/2154—Winding
    • F17C2209/2163—Winding with a mandrel
    • 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
    • F17C2209/22—Assembling processes
    • F17C2209/227—Assembling processes by adhesive means
    • 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

Definitions

  • the invention relates to the production of a compressed gas tank and the compressed gas tank, in particular a pressurized hydrogen tank itself.
  • pressurized hydrogen tanks which are currently being manufactured by wrapping a plastic liner with carbon fibers which are already preimpregnated or impregnated after the winding.
  • the liner is necessary to give the tank its basic shape.
  • the impregnated carbon fiber ribbon is fixed in a manner known per se by curing the matrix polymer.
  • the liner remains on the inner wall of the pressurized hydrogen tank.
  • tank operation it may happen that hydrogen diffuses through the wall of the liner and accumulates at the carbon fiber composite bandage. If the tank pressure falls during the subsequent driving operation, it may happen that the liner peels off the carbon fiber bandage and in the worst case collapses.
  • this problem should be circumvented by multilayer liner, which have a higher diffusion resistance, so as to avoid peeling.
  • Such a pressurized hydrogen tank is known from DE 10 2009 014 057 A1. It has a wall made of a fiber composite material and a plastic liner and a connection flange.
  • DE 10 2009 014 057 A1 relates to the problem of preventing diffusion of the hydrogen gas or another gaseous medium out of the interior of the pressure vessel through the wall of fiber composite material, which can be done by means of an additional liner as a gas or vapor barrier.
  • the inventive method for producing compressed gas tanks made of carbon fiber materials with a filling and removal nozzle, such as pressurized hydrogen tanks comprises in a first embodiment, the steps
  • the impregnation of the carbon fibers can be realized by using preimpregnated carbon fibers for wrapping, on the other hand, only the finished carbon fiber bandage can be impregnated. Both variants can be combined.
  • the method has the following steps to increase the material requirement reduce and still cause no loss of stability of the compressed gas tank:
  • a support structure of carbon fiber braces or spokes is already provided therein. This may suitably extend from a radially away from the central axis of the core
  • Consist spokes support structure The free ends of the struts or spokes should be so long that they protrude over the surface of the core to be wrapped. Then, when wrapping the core with the carbon fiber bandage, the overhanging free ends of the struts or spokes can be wrapped into it. This achieves an advantageously fixed connection. Upon consolidation of the polymeric matrix material, the free ends of the support structure wrapped in the carbon fiber bandage are then fixed. Now, if the liquefaction and removal of the liquid core material is made from the compressed gas tank, the support structure remains stabilizing in its interior.
  • the fusible core may have a round or, in particular, if it contains the support structure, oval or other suitable cross-sectional shape and thus allow to produce other than cylindrical pressurized gas tanks.
  • An inventive pressurized gas tank which can be manufactured with the above methods, and which has a filling and withdrawal nozzle, therefore, has a wall which consists of a carbon fiber composite material layer and which is advantageously free of an inner-walled liner layer.
  • This compressed gas tank can be a pressurized hydrogen tank.
  • a support structure of struts or spokes made of carbon fiber material is present in the interior of the compressed gas tank, which stabilizes and with respect to
  • This may preferably be configured as a spoke support structure extending radially away from a central axis of the pressurized gas tank, whose distal strut or spoke ends form the inner wall of the pressurized gas tank penetrate and are received in the polymeric matrix of the carbon fiber composite layer forming the wall of the pressurized gas tank.
  • the pressurized gas tank can therefore have an oval or other suitable cross-sectional shape in addition to the cylindrical shape, especially in Stauer Modellverassemble.
  • Fig. 1 is a cross-sectional view of a cylindrical tank with radial support struts
  • Fig. 2 is a cross-sectional view of a tank having an elliptical cross-section and with
  • FIG. 1 shows the section through a cylindrical pressurized hydrogen tank 1 made of carbon fiber materials with carbon fiber spokes 3, which extend radially in the interior from a central axis to the tank wall 2 and are received in the wall 2.
  • a fusible core (not shown), such as wax or ice, was used to form the inner shape of the cylindrical pressurized gas tank. Then, the core was wrapped with carbon fibers, so that the resulting carbon fiber bandage forms a preform of the compressed gas tank 1.
  • the curable polymeric matrix material with which the carbon fibers were impregnated before or after winding was subjected to appropriate curing conditions to form the consolidated carbon fiber composite material that provides the wall 2 of the pressure tank 1.
  • spoke ends which protrude from the core and are incorporated into the carbon fiber bandage, are thereby fixed in the polymeric matrix. If a pulverulent, curable polymeric matrix material is used, it can first be liquefied first in order to wet the carbon fibers.
  • the core which already contained the supporting structure of spokes 3, was liquefied by melting and the liquid core material was removed from the filling and removal nozzle. If such spokes 3 projecting radially from a central axis are used, or optionally also another supporting structure, it is even possible to deviate from the cylindrical basic shape of a pressurized hydrogen tank and, for example, to create an elliptical cross section of the pressurized hydrogen tank, as shown in FIG.

Abstract

The invention relates to a compressed gas tank (1) which consists of carbon fiber materials and which has a filling and withdrawal connection. The invention also relates to a method for producing same, having the following steps: - providing a meltable core that forms an internal shape of the compressed gas tank (1), - wrapping the core with at least one carbon fiber bandage and impregnating the carbon fibers with a curable polymer matrix material, thereby providing a preform of the compressed gas tank (1), - consolidating the polymer matrix material of the preform and obtaining the carbon fiber composite compressed gas tank (1), and - liquefying the core material by means of a melting process and withdrawing the liquid core material out of the filling and removal connection.

Description

Druckgastank und Fertigungsverfahren für selbigen  Compressed gas tank and manufacturing process for selbigen
Die Erfindung betrifft die Fertigung eines Druckgastanks und den Druckgastank, insbesondere einen Druckwasserstofftank selbst. The invention relates to the production of a compressed gas tank and the compressed gas tank, in particular a pressurized hydrogen tank itself.
Aus dem Stand der Technik sind Druckwasserstofftanks bekannt, die derzeit gefertigt werden, indem ein Kunststoffliner mit Kohlefasern umwickelt wird, die bereits vorimprägniert sind oder nach der Wicklung imprägniert werden. Hierbei ist der Liner notwendig, um dem Tank seine Grundform zu geben. Nach der Wicklung wird die imprägnierte Kohlefaserbandage auf an sich bekannte Weise durch Aushärten des Matrixpolymers fixiert. Der Liner verbleibt dabei an der Innenwandung des Druckwasserstofftanks. Beim Tankbetrieb kann es nun vorkommen, dass Wasserstoff durch die Wand des Liners diffundiert und sich an der Kohlefaserverbundwerkstoff-Bandage anreichert. Wenn beim anschließenden Fahrbetrieb der Tankdruck abfällt, kann es vorkommen, dass sich der Liner von der Kohlefaserbandage abschält und im schlimmsten Fall kollabiert. Im Stand der Technik soll diese Problematik durch mehrschichtige Liner umgangen werden, die einen höheren Diffusionswiderstand haben, um so das Abschälen zu vermeiden. From the prior art pressurized hydrogen tanks are known, which are currently being manufactured by wrapping a plastic liner with carbon fibers which are already preimpregnated or impregnated after the winding. Here, the liner is necessary to give the tank its basic shape. After winding, the impregnated carbon fiber ribbon is fixed in a manner known per se by curing the matrix polymer. The liner remains on the inner wall of the pressurized hydrogen tank. In tank operation, it may happen that hydrogen diffuses through the wall of the liner and accumulates at the carbon fiber composite bandage. If the tank pressure falls during the subsequent driving operation, it may happen that the liner peels off the carbon fiber bandage and in the worst case collapses. In the prior art, this problem should be circumvented by multilayer liner, which have a higher diffusion resistance, so as to avoid peeling.
Ein derartiger Druckwasserstofftank ist aus der DE 10 2009 014 057 A1 bekannt. Er verfügt über eine Wandung aus einem Faserverbundwerkstoff und einen Liner aus Kunststoff sowie einen Anschlussflansch. Die DE 10 2009 014 057 A1 bezieht sich auf die Problematik, eine Diffusion des Wasserstoffgases oder eines sonstigen gasförmigen Mediums aus dem Inneren des Druckbehälters heraus durch die Wandung aus Faserverbundwerkstoff zu unterbinden, was mittels eines zusätzlichen Liners als Gas- oder Dampfsperre geschehen kann. Such a pressurized hydrogen tank is known from DE 10 2009 014 057 A1. It has a wall made of a fiber composite material and a plastic liner and a connection flange. DE 10 2009 014 057 A1 relates to the problem of preventing diffusion of the hydrogen gas or another gaseous medium out of the interior of the pressure vessel through the wall of fiber composite material, which can be done by means of an additional liner as a gas or vapor barrier.
Aus der DE 2124789 A ist eine aufblasbare, faserverstärkte Elastomerblase bekannt, welche als schrumpfbarer und damit entnehmbarer Kern für den Behälterbau From DE 2124789 A an inflatable, fiber-reinforced elastomer bladder is known which as a shrinkable and thus removable core for container construction
vorgeschlagen wird. Aus der DE 19803909 A1 ist ein Verfahren zur Herstellung einer faserverstärkten Polymerblase bekannt. Ausgehend von diesem Stand der Technik ergibt sich die Aufgabe, einen Druckgastank, insbesondere für Wasserstoff, zu schaffen, der keine kollabierbare Innenstruktur aufweist. is proposed. From DE 19803909 A1 a method for producing a fiber-reinforced polymer bladder is known. Based on this prior art, the object is to provide a compressed gas tank, in particular for hydrogen, which has no collapsible internal structure.
Diese Aufgabe wird durch das Verfahren mit den Merkmalen des Anspruchs 1 und mit der Vorrichtung mit den Merkmalen des Anspruchs 6 gelöst. Weiterbildungen der Vorrichtung und des Verfahrens sind in den Unteransprüchen ausgeführt. This object is achieved by the method with the features of claim 1 and with the device with the features of claim 6. Further developments of the device and the method are set forth in the subclaims.
Das erfindungsgemäße Verfahren zur Herstellung von Druckgastanks aus Kohlefasermaterialien mit einem Befüll- und Entnahmestutzen, wie etwa Druckwasserstofftanks, umfasst in einer ersten Ausführungsform die Schritte The inventive method for producing compressed gas tanks made of carbon fiber materials with a filling and removal nozzle, such as pressurized hydrogen tanks, comprises in a first embodiment, the steps
- Bereitstellen eines schmelzbaren Kerns, der eine Innenform des Druckgastanks bildet, Providing a fusible core which forms an internal shape of the compressed gas tank,
- Umwickeln des Kerns mit zumindest einer Kohlefaserbandage und Imprägnieren der Kohlefasern mit einem aushärtbaren polymeren Matrixmaterial und dabei Bereitstellen einer Preform des Druckgastanks. Die Imprägnierung der Kohlefasern kann durch Verwendung von vorimprägnierten Kohlefasern zum Umwickeln realisiert werden, andererseits kann auch erst die fertige Kohlefaserbandage imprägniert werden. Es können auch beide Varianten kombiniert werden. - wrapping the core with at least one carbon fiber bandage and impregnating the carbon fibers with a curable polymeric matrix material, thereby providing a preform of the compressed gas tank. The impregnation of the carbon fibers can be realized by using preimpregnated carbon fibers for wrapping, on the other hand, only the finished carbon fiber bandage can be impregnated. Both variants can be combined.
Weitere Schritte des Verfahrens sind  Further steps of the process are
- Konsolidieren des polymeren Matrixmaterials der Preform und Erhalten des Kohlefaserverbund-Druckgastanks, und  Consolidating the polymer matrix material of the preform and obtaining the carbon fiber composite pressurized gas tank, and
- Verflüssigen des Kernmaterials durch Aufschmelzen und Entnehmen des flüssigen Kernmaterials aus dem Befüll- und Entnahmestutzen  - liquefying the core material by melting and removing the liquid core material from the filling and withdrawal nozzle
- bei dem Bereitstellen des schmelzbaren Kerns in dem Kern Vorsehen einer Stützstruktur aus Streben oder Speichen (3) aus Kohlefasermaterial, wobei die freien Enden der Streben oder Speichen (3) über eine zu umwickelnde Oberfläche des Kerns überstehen,  in providing the fusible core in the core, providing a support structure of struts or spokes (3) of carbon fiber material, the free ends of the struts or spokes (3) projecting beyond a surface of the core to be wrapped,
- beim Umwickeln des Kerns mit der Kohlefaser-Bandage Einwickeln der überstehenden freien Enden der Streben oder Speichen (3), dann  - When wrapping the core with the carbon fiber bandage wrapping the protruding free ends of the struts or spokes (3), then
- beim Konsolidieren Fixieren der freien Enden in der Kohlefaserverbund-Bandage, - consolidating fixing the free ends in the carbon fiber composite bandage,
- verbleiben Lassen der Stützstruktur (3) nach dem Verflüssigen und Entnehmen des flüssigen Kernmaterials in dem Druckgastank (1).. - Leaving the support structure (3) after liquefying and removing the liquid core material in the compressed gas tank (1).
So wird es ermöglicht, den Druckgastank ohne einen Liner herzustellen, wodurch sich ergibt, dass die Ablöseproblematik entfällt. This makes it possible to produce the compressed gas tank without a liner, which results in that the separation problem is eliminated.
Erfindungsgemäß weist das Verfahren folgende Schritte auf, um den Materialbedarf zu verringern und dennoch keine Stabilitätsverluste des Druckgastanks herbeizuführen: According to the invention, the method has the following steps to increase the material requirement reduce and still cause no loss of stability of the compressed gas tank:
Wenn der schmelzbaren Kern bereitgestellt wird, wird in diesem bereits eine Stützstruktur aus Streben oder Speichen aus Kohlefasermaterial vorgesehen. Diese kann geeigneter Weise aus einer sich von der Zentralachse des Kerns radial weg erstreckenden When the fusible core is provided, a support structure of carbon fiber braces or spokes is already provided therein. This may suitably extend from a radially away from the central axis of the core
Speichen-Stützstruktur bestehen. Die freien Enden der Streben oder Speichen sollen dabei so lang sein, dass sie über die zu umwickelnden Oberfläche des Kerns überstehen. Dann können beim Umwickeln des Kerns mit der Kohlefaser-Bandage die überstehenden freien Enden der Streben oder Speichen in diese eingewickelt werden. So wird eine vorteilhaft feste Anbindung erreicht. Beim Konsolidieren des polymeren Matrixmaterials werden dann die freien Enden der Stützstruktur, die in die Kohlefaser-Bandage eingewickelt sind, fixiert. Wenn nun das Verflüssigen und Entnehmen des flüssigen Kernmaterials aus dem Druckgastank vorgenommen wird, verbleibt die Stützstruktur stabilisierend in dessen Innerem. Consist spokes support structure. The free ends of the struts or spokes should be so long that they protrude over the surface of the core to be wrapped. Then, when wrapping the core with the carbon fiber bandage, the overhanging free ends of the struts or spokes can be wrapped into it. This achieves an advantageously fixed connection. Upon consolidation of the polymeric matrix material, the free ends of the support structure wrapped in the carbon fiber bandage are then fixed. Now, if the liquefaction and removal of the liquid core material is made from the compressed gas tank, the support structure remains stabilizing in its interior.
Als ausschmelzbare Werkstoffe für den Kern kommen z. B. Wachse oder auch Wassereis in Frage. Wassereis erscheint dabei besonders geeignet, da es, wenn die Wicklung aufgebracht ist, in einem Temperaturabsenk-Schritt weiter heruntergekühlt werden kann, um so die Kohlefaserverbundwerkstoff-Bandage beim Wickelprozess mit einer Vorspannung zu versehen, um eine hohe Druckfestigkeit des Druckgastanks zu erreichen. So kann Druckgastank-Material und Gewicht eingespart werden. As ausschmelzbare materials for the core come z. As waxes or water ice in question. Water ice appears to be particularly suitable because, when the winding is applied, it can be further cooled down in a temperature lowering step so as to bias the carbon fiber composite drum during the winding process to achieve high pressure resistance of the pressurized gas tank. This can save compressed gas tank material and weight.
Der schmelzbare Kern kann eine runde oder insbesondere, wenn er die Stützstruktur enthält, ovale oder eine andere geeignete Querschnittsform aufweisen und es damit erlauben, entsprechend andere als zylindrische Druckgastanks zu fertigen. The fusible core may have a round or, in particular, if it contains the support structure, oval or other suitable cross-sectional shape and thus allow to produce other than cylindrical pressurized gas tanks.
Ein erfindungsgemäßer Druckgastank, der mit den vorstehenden Verfahren gefertigt werden kann, und der einen Befüll- und Entnahmestutzen aufweist, hat daher eine Wandung, die aus einer Kohlefaserverbundwerkstoffschicht besteht und die vorteilhaft frei von einer innenwandigen Linerschicht ist. Dieser Druckgastank kann ein Druckwasserstofftank sein. An inventive pressurized gas tank, which can be manufactured with the above methods, and which has a filling and withdrawal nozzle, therefore, has a wall which consists of a carbon fiber composite material layer and which is advantageously free of an inner-walled liner layer. This compressed gas tank can be a pressurized hydrogen tank.
Erfindungsgemäß liegt im Inneren des Druckgastanks eine Stützstruktur aus Streben oder Speichen aus Kohlefasermaterial vor, welche stabilisiert und hinsichtlich des According to the invention, a support structure of struts or spokes made of carbon fiber material is present in the interior of the compressed gas tank, which stabilizes and with respect to
Materialeinsatzes günstig ist. Diese kann bevorzugt als eine sich von einer Zentralachse des Druckgastanks radial weg erstreckenden Speichen-Stützstruktur ausgestaltet sein, deren distale Streben- oder Speichen-Enden die Innenwandung des Druckgastanks durchdringen und in der polymeren Matrix der Kohlefaserverbundwerkstoffschicht, die die Wandung des Druckgastanks bildet, aufgenommen sind. Material usage is favorable. This may preferably be configured as a spoke support structure extending radially away from a central axis of the pressurized gas tank, whose distal strut or spoke ends form the inner wall of the pressurized gas tank penetrate and are received in the polymeric matrix of the carbon fiber composite layer forming the wall of the pressurized gas tank.
Der Druckgastank kann außer der Zylinderform daher insbesondere bei Stützstrukturverwendung eine ovale oder eine andere geeignete Querschnittsform haben. The pressurized gas tank can therefore have an oval or other suitable cross-sectional shape in addition to the cylindrical shape, especially in Stützstrukturverwendung.
Diese und weitere Vorteile werden durch die nachfolgende Beschreibung unter Bezug auf die begleitenden Figuren dargelegt. Der Bezug auf die Figuren in der Beschreibung dient der Unterstützung der Beschreibung und dem erleichterten Verständnis des Gegenstands, sie sind lediglich eine schematische Darstellung einer Ausführungsform der Erfindung. These and other advantages are set forth by the following description with reference to the accompanying figures. The reference to the figures in the description is to aid in the description and to facilitate understanding of the subject matter, they are merely a schematic representation of an embodiment of the invention.
Dabei zeigen Show
Fig. 1 eine Querschnittsansicht eines zylindrischen Tanks mit radialen Stützstreben, Fig. 2 eine Querschnittsansicht eines Tanks mit elliptischem Querschnitt und mit  Fig. 1 is a cross-sectional view of a cylindrical tank with radial support struts, Fig. 2 is a cross-sectional view of a tank having an elliptical cross-section and with
Stützstreben.  Support struts.
Figur 1 zeigt den Schnitt durch einen zylindrischen Druckwasserstofftank 1 aus Kohlefasermaterialien mit Kohlefaserspeichen 3, die sich im Inneren radial von einer Zentralachse zur Tankwandung 2 hin erstrecken und in die Wandung 2 aufgenommen sind. Zur Herstellung des Druckwasserstofftanks 1 wurde ein schmelzbarer Kern (nicht gezeigt), etwa aus Wachs oder Eis, herangezogen, um die Innenform des zylindrischen Druckgastanks zu bilden. Dann wurde der Kern mit Kohlefasern umwickelt, so dass die entstandene Kohlefaser-Bandage eine Preform des Druckgastanks 1 bildet. Das aushärtbare polymere Matrixmaterial, mit dem die Kohlefasern vor oder nach der Wicklung imprägniert wurden, wurde entsprechenden Aushärtebedingungen ausgesetzt, so dass der konsolidierte Kohlefaserverbundwerkstoff entsteht, der die Wandung 2 des Drucktanks 1 bereitstellt. Die Speichenenden, die aus dem Kern herausragten und in die Kohlenfaser-Bandage aufgenommen sind, werden dabei in der polymeren Matrix fixiert. Wird ein pulver- förmiges aushärtbares polymeres Matrixmaterial eingesetzt, so kann dieses zunächst auch erst verflüssigt werden, um die Kohlefasern zu benetzen. 1 shows the section through a cylindrical pressurized hydrogen tank 1 made of carbon fiber materials with carbon fiber spokes 3, which extend radially in the interior from a central axis to the tank wall 2 and are received in the wall 2. For producing the pressurized hydrogen tank 1, a fusible core (not shown), such as wax or ice, was used to form the inner shape of the cylindrical pressurized gas tank. Then, the core was wrapped with carbon fibers, so that the resulting carbon fiber bandage forms a preform of the compressed gas tank 1. The curable polymeric matrix material with which the carbon fibers were impregnated before or after winding was subjected to appropriate curing conditions to form the consolidated carbon fiber composite material that provides the wall 2 of the pressure tank 1. The spoke ends, which protrude from the core and are incorporated into the carbon fiber bandage, are thereby fixed in the polymeric matrix. If a pulverulent, curable polymeric matrix material is used, it can first be liquefied first in order to wet the carbon fibers.
Am Ende des Herstellungsprozesses wurde der Kern, der bereits die Stützstruktur aus Speichen 3 enthielt, durch Aufschmelzen verflüssigt und das flüssige Kernmaterial aus dem Befüll- und Entnahmestutzen entnommen. Wenn derartige von einer Zentralachse radial abstehende Speichen 3 eingesetzt werden, oder gegebenenfalls auch eine andere Stützstruktur, besteht sogar die Möglichkeit, von der zylindrischen Grundform eines Druckwasserstofftanks abzuweichen und beispielsweise einen elliptischen Querschnitt des Druckwasserstofftanks zu schaffen, wie in Fig. 2 gezeigt. At the end of the manufacturing process, the core, which already contained the supporting structure of spokes 3, was liquefied by melting and the liquid core material was removed from the filling and removal nozzle. If such spokes 3 projecting radially from a central axis are used, or optionally also another supporting structure, it is even possible to deviate from the cylindrical basic shape of a pressurized hydrogen tank and, for example, to create an elliptical cross section of the pressurized hydrogen tank, as shown in FIG.

Claims

Patentansprüche claims
1. Verfahren zur Herstellung eines Druckgastanks (1 ) aus Kohlefasermaterialien, der einen Befüll- und Entnahmestutzen aufweist, 1. A method for producing a compressed gas tank (1) made of carbon fiber materials, which has a filling and withdrawal nozzle,
umfassend die Schritte  comprising the steps
- Bereitstellen eines schmelzbaren Kerns,  Providing a fusible core,
der eine Innenform des Druckgastanks (1) bildet,  which forms an inner shape of the compressed gas tank (1),
- Umwickeln des Kerns mit zumindest einer Kohlefaser-Bandage und  - wrapping the core with at least one carbon fiber bandage and
Imprägnieren der Kohlefasern mit einem aushärtbaren polymeren Matrixmaterial, dabei Bereitstellen einer Preform des Druckgastanks (1),  Impregnating the carbon fibers with a curable polymeric matrix material, thereby providing a preform of the compressed gas tank (1),
- Konsolidieren des polymeren Matrixmaterials der Preform und  Consolidating the polymeric matrix material of the preform and
Erhalten des Kohlefaserverbund-Druckgastanks (1), und  Getting the carbon fiber composite compressed gas tank (1), and
- Verflüssigen des Kernmaterials durch Aufschmelzen und  - liquefying the core material by melting and
Entnehmen des flüssigen Kernmaterials aus dem Befüll- und Entnahmestutzen gekennzeichnet durch die Schritte:  Removing the liquid core material from the filling and withdrawal nozzle characterized by the steps:
- bei dem Bereitstellen des schmelzbaren Kerns  in providing the fusible core
in dem Kern Vorsehen einer Stützstruktur aus Streben oder Speichen (3) aus Kohlefasermaterial,  in the core providing a support structure of struts or spokes (3) made of carbon fiber material,
wobei die freien Enden der Streben oder Speichen (3) über eine zu umwickelnde Oberfläche des Kerns überstehen,  the free ends of the struts or spokes (3) projecting beyond a surface of the core to be wrapped,
- beim Umwickeln des Kerns mit der Kohlefaser-Bandage  - When wrapping the core with the carbon fiber bandage
Einwickeln der überstehenden freien Enden der Streben oder Speichen (3), dann Wrapping the protruding free ends of the struts or spokes (3), then
- beim Konsolidieren Fixieren der freien Enden in der Kohlefaserverbund-Bandage,- consolidating fixing the free ends in the carbon fiber composite bandage,
- verbleiben Lassen der Stützstruktur (3) nach dem Verflüssigen und Entnehmen des flüssigen Kernmaterials in dem Druckgastank (1). - Leave the support structure (3) after liquefying and removing the liquid core material in the compressed gas tank (1).
2. Verfahren nach Anspruch 1 , 2. The method according to claim 1,
wobei die Stützstruktur aus Streben oder Speichen (3) als sich von einer  wherein the support structure of struts or spokes (3) than from a
Zentralachse des Kerns radial weg erstreckend vorgesehen wird.  Central axis of the core is provided radially away extending.
3. Verfahren nach Anspruch 1 oder 2, 3. The method according to claim 1 or 2,
wobei der schmelzbare Kern ein Wassereiskern oder ein Wachskern ist. wherein the fusible core is a water ice kernel or a wax core.
4. Verfahren nach Anspruch 3, 4. The method according to claim 3,
umfassend den Schritt  comprising the step
nach dem Umwickeln des Kerns mit der Kohlefaser-Bandage zunächst weiter Absenken der Kerntemperatur.  after wrapping the core with the carbon fiber bandage, first further lower the core temperature.
5. Verfahren nach zumindest einem der vorstehenden Ansprüche, 5. The method according to at least one of the preceding claims,
wobei der schmelzbare Kern eine runde oder ovale oder eine andere geeignete Querschnittsform aufweist.  wherein the fusible core has a round or oval or other suitable cross-sectional shape.
6. Druckgastank (1 ) mit einem Befüll- und Entnahmestutzen, 6. compressed gas tank (1) with a filling and withdrawal nozzle,
herstellbar nach einem Verfahren mit zumindest einem der Ansprüche 1 bis 5, wobei eine Wandung (2) des Druckgastanks (1) aus einer Kohlefaserverbundwerkstoffschicht besteht und frei von einer innenwandigen Linerschicht ist  Can be produced by a method according to at least one of claims 1 to 5, wherein a wall (2) of the compressed gas tank (1) consists of a carbon fiber composite material layer and is free of an inner liner layer
dadurch gekennzeichnet, dass  characterized in that
in dem Inneren des Druckgastanks (1) eine Stützstruktur aus Streben oder  in the interior of the compressed gas tank (1) a support structure made of struts or
Speichen (3) aus Kohlefasermaterial angeordnet ist, wobei die distalen Strebenoder Speichen-Enden in einer polymeren Matrix der Kohlefaserverbundwerkstoffschicht, die die Wandung (2) des Druckgastanks (1) bildet, aufgenommen sind.  Spokes (3) is arranged made of carbon fiber material, wherein the distal struts or spoke ends in a polymeric matrix of the carbon fiber composite material layer forming the wall (2) of the compressed gas tank (1) are accommodated.
7. Druckgastank (1) nach Anspruch 6, 7. compressed gas tank (1) according to claim 6,
dadurch gekennzeichnet, dass  characterized in that
der Druckgastank (1 ) ein Druckwasserstofftank (1) ist.  the compressed gas tank (1) is a pressurized hydrogen tank (1).
8. Druckgastank (1) nach Anspruch 6 oder 7, 8. compressed gas tank (1) according to claim 6 or 7,
dadurch gekennzeichnet, dass  characterized in that
die Speichen-Stützstruktur (3) sich von einer Zentralachse des Druckgastanks (1) radial weg erstreckt.  the spoke support structure (3) extends radially away from a central axis of the compressed gas tank (1).
9. Druckgastank (1) nach Anspruch 8, 9. compressed gas tank (1) according to claim 8,
dadurch gekennzeichnet, dass  characterized in that
der Druckgastank (1) eine runde oder ovale oder eine andere geeignete  the compressed gas tank (1) a round or oval or another suitable
Querschnittsform aufweist.  Has cross-sectional shape.
EP12769918.9A 2011-10-21 2012-09-20 Compressed gas tank and method for producing same Withdrawn EP2768657A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011116656A DE102011116656B3 (en) 2011-10-21 2011-10-21 Compressed gas tank and manufacturing process for selbigen
PCT/EP2012/003932 WO2013056773A1 (en) 2011-10-21 2012-09-20 Compressed gas tank and method for producing same

Publications (1)

Publication Number Publication Date
EP2768657A1 true EP2768657A1 (en) 2014-08-27

Family

ID=47008461

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12769918.9A Withdrawn EP2768657A1 (en) 2011-10-21 2012-09-20 Compressed gas tank and method for producing same

Country Status (6)

Country Link
US (1) US9683699B2 (en)
EP (1) EP2768657A1 (en)
JP (1) JP6050824B2 (en)
CN (1) CN103906620A (en)
DE (1) DE102011116656B3 (en)
WO (1) WO2013056773A1 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011116656B3 (en) * 2011-10-21 2013-01-17 Daimler Ag Compressed gas tank and manufacturing process for selbigen
DE102013002944A1 (en) * 2013-02-21 2014-08-21 Daimler Ag Device for storing gas under high pressure
DE102014201377B4 (en) * 2014-01-27 2016-12-01 Bayerische Motoren Werke Aktiengesellschaft Stiffening element for stiffening a blank of an at least partially hollow fiber composite component, Blasformkernsystem and methods for producing an at least partially hollow fiber composite component
DE102014217039A1 (en) * 2014-08-27 2016-03-03 Bayerische Motoren Werke Aktiengesellschaft Process for the production of a closed hollow profile of fiber composite material reinforced with at least one reinforcing bulkhead
KR101745063B1 (en) 2014-12-05 2017-06-09 현대자동차주식회사 A precess for recycling the composite container for a high pressure gas
DE102016103979A1 (en) * 2016-03-04 2017-09-07 KTM Technologies GmbH Process for producing a fiber-reinforced structural hollow component and structural hollow component
CN106764399A (en) * 2016-11-22 2017-05-31 成都迅德科技有限公司 A kind of medical oxygen cylinder
DE102016124061A1 (en) 2016-12-12 2018-06-14 KTM Technologies GmbH Lost mold core and a method for producing a component and the component itself
DE102017204658B3 (en) 2017-03-21 2018-08-16 Volkswagen Aktiengesellschaft Structural component of a vehicle frame with an integrated storage container with a connection element made of fiber composite laminate
DE102017106028A1 (en) 2017-03-21 2018-09-27 Scania Cv Ab Shaping a memory container integrated in a structural component of a vehicle frame
DE102017106024A1 (en) 2017-03-21 2018-09-27 Scania Cv Ab Structural component of a vehicle frame with an integrated storage container
CN107127981A (en) * 2017-06-26 2017-09-05 江苏恒神股份有限公司 Carbon fiber composite material casing forming method
DE102018218085B4 (en) 2018-10-23 2023-04-27 Volkswagen Aktiengesellschaft Structural component for a chassis frame of a vehicle and method for producing a structural component
DE102019107984A1 (en) * 2019-03-28 2020-10-01 Bayerische Motoren Werke Aktiengesellschaft Pressure vessel and method of making a pressure vessel
DE102020134180A1 (en) 2020-12-18 2022-06-23 Bayerische Motoren Werke Aktiengesellschaft Method of making a tension braced pressure vessel and pressure vessel
FR3120564B3 (en) 2021-03-09 2023-09-29 Loiretech Ingenierie Process for manufacturing a tank for holding a gas under pressure, in particular hydrogen
CN115157716A (en) * 2022-08-24 2022-10-11 禾材高科(苏州)有限公司 Preparation method of high-pressure gas storage tank without inner container

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH148472A (en) * 1930-10-23 1931-07-31 Gazsouspression Syndicat Pressure accumulator for gases and dripping liquids.
US2982441A (en) * 1957-01-16 1961-05-02 Conch Int Methane Ltd Liquid-storage tank
US2947439A (en) * 1957-12-13 1960-08-02 Chicago Bridge & Iron Co Flat bottom pressure container
DE1704604A1 (en) * 1968-03-16 1971-05-27 Babcock & Wilcox Ag Process for the production of pressure vessels from pre-tensioned, resin-soaked threads
US3692551A (en) * 1970-02-24 1972-09-19 Libbey Owens Ford Co Core for use in pressure molding
US3712139A (en) * 1970-07-13 1973-01-23 Harvey Harvesters Inc Volume measuring container
DE2124789A1 (en) * 1971-05-19 1972-12-07 Deutsche Forsch Luft Raumfahrt Elastomer moulding bladder - reinforced with fibres, to produce reinforced plastic containers of the required size
US3962393A (en) * 1974-05-07 1976-06-08 Lockheed Aircraft Corporation Method for making a hollow laminated article
US5462193A (en) * 1993-10-06 1995-10-31 Schoo; Raul A. I. Composite pressure vessel
WO1996006750A2 (en) * 1994-08-29 1996-03-07 Stenger Gregory J Tank for storing pressurized gas
USRE39554E1 (en) * 1994-08-29 2007-04-10 Spectrum Solutions, Ltd. Reinforced composite structure
US6090465A (en) 1994-08-29 2000-07-18 Spectrum Solutions, Ltd. Reinforced composite structure
FR2760399B1 (en) * 1997-03-06 1999-05-07 Hispano Suiza Sa PROCESS FOR THE MANUFACTURE OF HOLLOW PARTS OF COMPOSITE MATERIAL
US6015065A (en) * 1997-08-29 2000-01-18 Mcalister; Roy E. Compact fluid storage system
CA2253037C (en) * 1997-11-12 2004-11-02 Sakura Rubber Co., Ltd. Method of manufacturing structure by using biodegradable mold
DE19803909A1 (en) * 1998-02-02 1999-08-05 Ver Foerderung Inst Kunststoff Resin injection process for production of continuous fiber reinforced hollow products, e.g. turbine blades, pressure tanks or structural components
US6325958B1 (en) * 1999-11-15 2001-12-04 Advanced Ceramics Research, Inc. Method for manufacture of mandrels for solid fuel rocket motors and other applications
JP2001263590A (en) * 2000-03-16 2001-09-26 Ihi Aerospace Co Ltd Method of manufacturing pressure vessel
US7351364B2 (en) * 2004-01-29 2008-04-01 Siemens Power Generation, Inc. Method of manufacturing a hybrid structure
US7670532B1 (en) * 2005-05-17 2010-03-02 Weaver William R Golf club head and method of making the same
DE102005031039A1 (en) * 2005-07-02 2007-01-25 Bayerische Motoren Werke Ag Braiding method and device
DE102007057198B4 (en) * 2007-11-28 2017-04-20 Daimler Ag Process for producing a fiber composite hollow body with power flow and voltage optimized fiber alignment
DE102009014057A1 (en) 2009-03-20 2010-09-23 Daimler Ag Pressure vessel for storing hydrogen gas for driving land-based motor vehicle, has liner made of plastic, and flange cooperating with support ring at wall, where section of outer circumference of flange is conical
DE102009024794A1 (en) 2009-06-10 2010-12-16 Daimler Ag Hydrogen tank for use in motor vehicle, has multi-shell structure with tank volumes enclosed from each other, where higher and lower filling pressures of tank volumes are decreased outwardly, and tank walls exhibiting different shapes
DE102009057170A1 (en) 2009-12-05 2011-06-09 Volkswagen Ag Pressure vessel for storage of fluid medium, particularly for installation in vehicle, is provided with base to form storage space in which fluid medium is retained
DE102011116656B3 (en) * 2011-10-21 2013-01-17 Daimler Ag Compressed gas tank and manufacturing process for selbigen
CH706380A1 (en) * 2012-04-13 2013-10-15 Fluid Solids Ag C O Studio Beat Karrer A degradable material from biological components.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2013056773A1 *

Also Published As

Publication number Publication date
DE102011116656B3 (en) 2013-01-17
CN103906620A (en) 2014-07-02
JP2014534395A (en) 2014-12-18
JP6050824B2 (en) 2016-12-21
US9683699B2 (en) 2017-06-20
US20140326738A1 (en) 2014-11-06
WO2013056773A1 (en) 2013-04-25

Similar Documents

Publication Publication Date Title
DE102011116656B3 (en) Compressed gas tank and manufacturing process for selbigen
DE112012002720B4 (en) High pressure gas tank and manufacturing process for high pressure gas tank
EP0113841B1 (en) Process for producing a shaped body from composite material, and shaped body obtained by the process
EP2279074B1 (en) Method of manufacturing an integral hollow component consisting of a fibre composite material
EP2511084B1 (en) Fibre-reinforced plastic node element and method for producing and using same
DE102010005987B4 (en) Process for producing hollow bodies with collar-shaped reinforcements
WO2015188925A1 (en) Method for manufacturing a pressure vessel
DE102008022377A1 (en) Support strut for supporting an intermediate deck arranged in an aircraft fuselage and method for producing a rod body for such a support strut
WO2014118004A1 (en) Core and method for producing fibre-reinforced semifinished plastic products
DE102018122890A1 (en) High pressure tank manufacturing process
CH434709A (en) Process for the production of fiber-reinforced plastic rings
EP2403711B1 (en) Component and method for the production thereof
EP2790887A1 (en) Winding method for the production of a rotationally symmetric, tube-like hollow body preform, device and method for the production of a device for producing same
EP3142843B1 (en) Method for producing a damper tube from a composite fiber material for a vibration damper
DE102019115668A1 (en) PRESSURE VESSEL WITH GROOVED LINING
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
DE2423497A1 (en) PROCESS FOR MANUFACTURING A FIBER-REINFORCED RESIN-IMPROVED HOLLOW BODY IN THE WINDING PROCESS AND HOLLOW-BODY BY THIS PROCESS
DE2230324A1 (en) TUBULAR LAMINATE AND METHOD FOR MANUFACTURING IT
DE102016224367B4 (en) Core for producing a fiber composite component, use of a core designed as a hollow mold and method for producing a fiber composite component
DE102009058487A1 (en) Braided winding preform has braiding stocking designed as braiding component made of fibers for manufacturing fiber-composite braided component, where winding core is longitudinally divided into two winding core sections
DE102018005571A1 (en) Process for manufacturing a pressurized gas container
DE102014008644B4 (en) Process for producing a hollow body from a fiber composite plastic
EP3615355A1 (en) Four-point link and method for producing a four-point link
DE2902190C2 (en) Casting mold for the production of pipes, in particular masts, made of fiberglass-reinforced synthetic resin
EP4273437A1 (en) Pressure vessel for receiving pressurized fluids and method for its manufacture

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20140405

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
RIC1 Information provided on ipc code assigned before grant

Ipc: B29C 70/54 20060101AFI20150609BHEP

Ipc: B29C 70/30 20060101ALI20150609BHEP

Ipc: F17C 1/08 20060101ALI20150609BHEP

Ipc: B29C 33/52 20060101ALI20150609BHEP

Ipc: F17C 1/06 20060101ALI20150609BHEP

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20150812

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Effective date: 20150904