EP1106277A2 - Method of making a compressed-air vessel - Google Patents

Method of making a compressed-air vessel Download PDF

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Publication number
EP1106277A2
EP1106277A2 EP00125538A EP00125538A EP1106277A2 EP 1106277 A2 EP1106277 A2 EP 1106277A2 EP 00125538 A EP00125538 A EP 00125538A EP 00125538 A EP00125538 A EP 00125538A EP 1106277 A2 EP1106277 A2 EP 1106277A2
Authority
EP
European Patent Office
Prior art keywords
container halves
container
halves
compressed air
forming process
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.)
Granted
Application number
EP00125538A
Other languages
German (de)
French (fr)
Other versions
EP1106277B1 (en
EP1106277A3 (en
Inventor
Norbert Burger
Matthias Tittel
Andreas Dipl.-Ing. Übelacker
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.)
MAN Truck and Bus SE
Original Assignee
MAN Nutzfahrzeuge 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 MAN Nutzfahrzeuge AG filed Critical MAN Nutzfahrzeuge AG
Publication of EP1106277A2 publication Critical patent/EP1106277A2/en
Publication of EP1106277A3 publication Critical patent/EP1106277A3/en
Application granted granted Critical
Publication of EP1106277B1 publication Critical patent/EP1106277B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/18—Making hollow objects characterised by the use of the objects vessels, e.g. tubs, vats, tanks, sinks, or the like
    • 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
    • F17C1/14—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge constructed of aluminium; constructed of non-magnetic steel
    • 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
    • F17C1/16—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge constructed of plastics materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
    • 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
    • F17C2201/0176—Shape variable
    • F17C2201/0185—Shape variable with separating membrane
    • 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
    • F17C2203/0607—Coatings
    • 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
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0636—Metals
    • F17C2203/0639—Steels
    • 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
    • F17C2203/0646—Aluminium
    • 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
    • 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
    • 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
    • F17C2209/232—Manufacturing of particular parts or at special locations of walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/031—Air
    • 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
    • F17C2223/035—High pressure (>10 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
    • 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
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/011—Improving strength
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/018—Adapting dimensions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/05—Improving chemical properties
    • F17C2260/053—Reducing corrosion
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0165—Applications for fluid transport or storage on the road
    • F17C2270/0168—Applications for fluid transport or storage on the road by vehicles
    • F17C2270/0171—Trucks

Definitions

  • the invention relates to a method for producing a compressed air container in Motor vehicles.
  • DE 44 07 075 C2 describes a single-walled compressed air tank in commercial vehicles known, the wall of which is provided on its inside with a corrosion protection layer is.
  • the wall of the compressed air tank is made of at least two, one of two layers Composite prefabricated, subsequently assembled and then welded together, individual wall parts.
  • the container halves can are thermally aftertreated each time they are manufactured. Stress relieving may be used as a thermal aftertreatment or the like are used.
  • the container halves can be produced provided sheets are made of corrosion-resistant materials and / or have a corrosion-resistant coating, which before or after the forming process can be applied to the sheets.
  • corrosion-resistant materials For example, aluminum alloys, stainless steel types or the like be provided.
  • a corrosion-resistant coating a plastic coating can be used.
  • each container half can have adapted radii for each forming process.
  • the compressed air container can be a have size and shape adapted to their respective installation situation. Possibly can fasteners for attaching the compressed air tank in the Container halves can be integrated.
  • the container halves can be one cross-sectional shape deviating from a circular cross-section, for example one have a convex cross-sectional shape. This is a better use of space achievable, d. H. with the same space requirement, a larger volume in the compressed air tank be realized.
  • an optional bulkhead can be arranged, the peripheral edge zone Is part of the joint fold connection of the two container halves.
  • the bulkhead can be a Transition area of the two container halves effective, liquid-impermeable, but have an air-permeable membrane.
  • this can be used to manufacture the Halves of the container required by a pressing, deep drawing, flow molding, Pressing method or the like may be given.
  • the two container halves can sealing sealants also have adhesive properties.
  • Fig. 1 is a side view of a first embodiment of one according to the invention Manufacturing process manufactured compressed air tank 1 in motor vehicles shown.
  • the compressed air tank 1 is of approximately the same size, in one first half of the container produced by a forming process 2, 3 composed, which by non-thermal joining of their common Connection area and with the additional use of a sealant 8th (Fig. 2) via a jointly formed, circumferential circumferential fold connection 4 are sealingly connected to each other.
  • the sealant 8 used additionally also have adhesive properties.
  • FIG. 2 is a side view in a sectional view of the approximately the same size container halves 2, 3 assembled compressed air tank 1 in the uncompleted state shown.
  • the approximately the same size container halves 2, 3 are after a forming process manufactured and after this step initially have an opening side, web edges 6, 7 which run around their circumference and protrude approximately at right angles, which after a possibly applied heat treatment by non-thermal joining and with the additional use of a sealing and / or Adhesive 8 via a jointly formed, circumferential circumferential Folded connection 4 (Fig. 3) can be sealingly connected to one another.
  • the first formed by a forming process, optionally thermally treated Container halves 2, 3 can initially be brought to a low-stress level before using non-thermal joining and with the help of a sealant 8 can be sealingly connected to one another.
  • An optional bulkhead 5 is arranged at the web edges 6, 7 of the container halves 2, 3. whose peripheral edge is part of the joint joint 4 (Fig. 3) of the two container halves 2, 3.
  • Such a folded connection is shown in an enlarged detail in a sectional view in FIG. 3 4 according to the variant of the compressed air tank 1 from FIG. 2 shown.
  • the folding of the two web edges 6, which was carried out by a folding process, 7 of the container halves 2, 3 takes into account the one inserted between the web edges 6, 7 and provided with sealing and / or adhesive 8 on both sides of the edge zone Bulkhead 5.
  • the bulkhead 5 can be in the transition area of the two container halves 2, 3 effective, liquid-impermeable, but air-permeable membrane have, the bulkhead 5 in its edge zone from a the folded forming participating material.
  • the forming process required to produce the container halves 2, 3 can realized by a pressing, deep drawing, flow molding, pressing process or the like his.
  • the sheets provided for producing the container halves 2, 3 can be made from there are corrosion-resistant materials and / or a corrosion-resistant coating have, which before or after the forming process on the sheets is applied.
  • Each container half 2, 3 can the respective forming process have adapted radii.
  • the achieved after the respective forming process Sheet thicknesses on the container halves 2, 3 can be the expected load of the compressed air tank 1 have an adapted dimension.
  • Fig. 4 are two pairs of compressed air tanks 1 with different in front view Cross section shown. There is a pair in dashed lines of compressed air tanks 1 shown with a circular cross section. Furthermore is in lined Representation a pair of compressed air tanks 1 shown, one of a Circular cross-section have a different cross-sectional shape.
  • the compressed air tanks 1 according to the manufacturing method according to the invention enabled the latter variant of a cambered cross-sectional shape of both Container halves 2, 3 - according to the lined representation - has the advantage of a larger one Filling volume and better volume utilization of the two Compressed air tanks 1 occupied space.
  • the sheets used for the container halves 2, 3 can optionally be one Have surface protection, which before or after the forming process on the Container halves 2, 3 is applied.
  • it can also be stainless materials such as aluminum alloys, stainless steel types, etc. as sheets be used.
  • Plastic coatings, for example, can be used as surface protection or the like are used.
  • the sheet thicknesses of the container halves 2, 3 adapted to the respective load can be approx. 2 mm for aluminum and approx. 1.5 mm for steel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

Two container halves (2,3) of approx. the same size are fabricated in a forming process, and are thermally processed after the forming stage. Edges (6,7) around the openings of both halves project at approx. 90 degrees . In a second stage, the edges and a seal unit (8) are formed in a non-thermal process to create a peripheral folded seam connection, for sealed connection of the two container halves. The halves are formed from non-corrosive materials, or have such a coating.

Description

Die Erfindung betrifft ein Verfahren zur Herstellung eines Druckluftbehälters in Kraftfahrzeugen.The invention relates to a method for producing a compressed air container in Motor vehicles.

Aus der DE 44 07 075 C2 ist ein einwandiger Druckluftbehälter in Nutzfahrzeugen bekannt, dessen Wand auf ihrer Innenseite mit einer Korrosionsschutzschicht versehen ist. Die Wand des Druckluftbehälters ist aus wenigstens zwei, aus einem zweischichtigen Verbundwerkstoff vorgefertigten, nachfolgend zusammengesetzten und anschließend zusammengeschweißten, einzelnen Wandteilen hergestellt.DE 44 07 075 C2 describes a single-walled compressed air tank in commercial vehicles known, the wall of which is provided on its inside with a corrosion protection layer is. The wall of the compressed air tank is made of at least two, one of two layers Composite prefabricated, subsequently assembled and then welded together, individual wall parts.

Es ist Aufgabe der Erfindung, die Herstellung eines Druckluftbehälters in Kraftfahrzeugen technisch und wirtschaftlich zu optimieren.It is an object of the invention to manufacture a compressed air tank in motor vehicles to optimize technically and economically.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruches 1 gelöst.This object is achieved by the features of claim 1.

Durch das erfindungsgemäße Verfahren zur Herstellung eines Druckluftbehälters in Kraftfahrzeugen sind zunächst zwei in etwa gleichgroße Behälterhälften nach einem Umformverfahren herstellbar. Dabei sind öffnungsseitig beider Behälterhälften umfangsseitig umlaufende, etwa rechtwinklig hiervon abragende Stegränder gebildet, welche in einem nachfolgenden Arbeitsschritt durch nichtthermisches Fügen und unter zusätzlicher Verwendung eines Dichtmittels zu einer gemeinsam gebildeten, umfangsmäßig umlaufenden Falzverbindung umgeformt werden, durch diese beide Behälterhälften abdichtend miteinander verbunden sind.By the method according to the invention for producing a compressed air container in Motor vehicles are initially two roughly equal container halves after one Forming process can be produced. Both container halves are on the opening side on the circumference circumferential, approximately at right angles protruding web edges formed, which in a subsequent step by non-thermal joining and with the additional use of a sealant to form a jointly formed circumferential circumferential fold connection are formed by these two Halves of the container are sealed together.

Gemäß einer weiteren Ausgestaltung der Erfindung können die Behälterhälften bei ihrer Herstellung jeweils nach dem Umformverfahren thermisch nachbehandelt werden. Als thermische Nachbehandlung kann beispielsweise ein Spannungsarmglühen oder dergleichen zur Anwendung kommen. According to a further embodiment of the invention, the container halves can are thermally aftertreated each time they are manufactured. Stress relieving may be used as a thermal aftertreatment or the like are used.

Gemäß einer weiteren Ausgestaltung der Erfindung können zur Herstellung der Behälterhälften vorgesehen Bleche aus korossionsbeständigen Materialien bestehen und/oder eine korrosionsbeständige Beschichtung aufweisen, welche vor oder nach dem Umformvorgang auf die Bleche aufbringbar ist. Als korrosionsbeständige Materialien können beispielsweise Alulegierungen, nichtrostende Stahlsorten oder dergleichen vorgesehen sein. Als korrosionsbeständige Beschichtung kann beispielsweise eine Kunststoffbeschichtung verwendet sein.According to a further embodiment of the invention, the container halves can be produced provided sheets are made of corrosion-resistant materials and / or have a corrosion-resistant coating, which before or after the forming process can be applied to the sheets. As corrosion-resistant materials For example, aluminum alloys, stainless steel types or the like be provided. For example, as a corrosion-resistant coating a plastic coating can be used.

Gemäß einer weiteren Ausgestaltung der Erfindung kann jede Behälterhälfte dem jeweiligen Umformverfahren angepaßte Radien aufweisen.According to a further embodiment of the invention, each container half can have adapted radii for each forming process.

Gemäß einer weiteren Ausgestaltung der Erfindung können die nach dem jeweiligen Umformverfahren erzielten Blechdicken an den Behälterhälften ein dem zu erwartenden Belastungsfall des Druckluftbehälters angepaßtes Maß aufweisen.According to a further embodiment of the invention, according to the respective Forming processes achieved sheet thicknesses on the container halves to be expected Have the load of the compressed air tank adjusted to the appropriate size.

Gemäß einer weiteren Ausgestaltung der Erfindung kann der Druckluftbehälter eine seiner jeweiligen Einbausituation angepaßte Größe und Form aufweisen. Gegebenenfalls können Befestigungselemente zur Anbringung des Druckluftbehälters in die Behälterhälften integriert sein.According to a further embodiment of the invention, the compressed air container can be a have size and shape adapted to their respective installation situation. Possibly can fasteners for attaching the compressed air tank in the Container halves can be integrated.

Gemäß einer weiteren Ausgestaltung der Erfindung können die Behälterhälften eine von einem Kreisquerschnitt abweichende Querschnittsform, beispielsweise eine bombierte Querschnittsform aufweisen. Dadurch ist eine bessere Raumausnutzung erzielbar, d. h. bei gleichem Platzbedarf kann ein größerer Volumeninhalt im Druckluftbehälter realisiert sein.According to a further embodiment of the invention, the container halves can be one cross-sectional shape deviating from a circular cross-section, for example one have a convex cross-sectional shape. This is a better use of space achievable, d. H. with the same space requirement, a larger volume in the compressed air tank be realized.

Gemäß einer weiteren Ausgestaltung der Erfindung kann zwischen den Behälterhälften eine optionale Schottwand angeordnet sein, deren umlaufende Randzone Bestandteil der gemeinsamen Falzverbindung der beiden Behälterhälften ist. According to a further embodiment of the invention can between the container halves an optional bulkhead can be arranged, the peripheral edge zone Is part of the joint fold connection of the two container halves.

Gemäß einer weiteren Ausgestaltung der Erfindung kann die Schottwand eine im Übergangsbereich der beiden Behälterhälften wirksame, flüssigkeitsundurchlässige, jedoch luftdurchlässige Membran aufweisen.According to a further embodiment of the invention, the bulkhead can be a Transition area of the two container halves effective, liquid-impermeable, but have an air-permeable membrane.

Gemäß einer weiteren Ausgestaltung der Erfindung kann das zur Herstellung der Behälterhälften erforderliche Umformverfahren durch ein Preß-, Tiefzieh-, Fließform-, Drückverfahren oder dergleichen gegeben sein.According to a further embodiment of the invention, this can be used to manufacture the Halves of the container required by a pressing, deep drawing, flow molding, Pressing method or the like may be given.

Gemäß einer weiteren Ausgestaltung der Erfindung kann das die beiden Behälterhälften abdichtende Dichtmittel zusätzlich Klebeeigenschaften aufweisen.According to a further embodiment of the invention, the two container halves can sealing sealants also have adhesive properties.

Nachfolgend ist die erfindungsgemäße Vorrichtung anhand in der Zeichnung dargestellter Ausführungsbeispiele näher erläutert.The device according to the invention is shown below with reference to the drawing Exemplary embodiments explained in more detail.

In der Zeichnung zeigen:

Fig. 1
einen Druckluftbehälter eines Kraftfahrzeuges in Seitenansicht,
Fig. 2
zusammensetzbare Behälterhälften im Schnitt in Seitenansicht,
Fig. 3
als vergrößerten Ausschnitt aus Fig. 2 eine Falzverbindung und
Fig. 4
in Vorderansicht zwei nebeneinander angeordnete Druckluftbehälter in Schnittdarstellung mit unterschiedlichen Querschnitten.
The drawing shows:
Fig. 1
a compressed air tank of a motor vehicle in side view,
Fig. 2
assembled container halves in section in side view,
Fig. 3
as an enlarged detail from FIG. 2, a fold connection and
Fig. 4
in front view two compressed air tanks arranged side by side in a sectional view with different cross sections.

In Fig. 1 ist in Seitenansicht eine erste Ausführungsvariante eines nach einem erfin-dungsgemäßen Herstellungsverfahren hergestellten Druckluftbehälters 1 in Kraftfahrzeugen gezeigt. Der Druckluftbehälter 1 ist aus zwei in etwa gleichgroßen, in einem ersten Arbeitsgang nach einem Umformverfahren hergestellten Behälterhälften 2, 3 zusammengesetzt, welche durch nichthermisches Fügen ihres gemeinsamen Anschlußbereiches und unter zusätzlicher Verwendung eines Dichtmittels 8 (Fig. 2) über eine gemeinsam gebildete, umfangsmäßig umlaufende Falzverbindung 4 abdichtend miteinander verbunden sind. Die verwendeten Dichtmittel 8 können zusätzlich auch Klebeeigenschaften aufweisen. In Fig. 1 is a side view of a first embodiment of one according to the invention Manufacturing process manufactured compressed air tank 1 in motor vehicles shown. The compressed air tank 1 is of approximately the same size, in one first half of the container produced by a forming process 2, 3 composed, which by non-thermal joining of their common Connection area and with the additional use of a sealant 8th (Fig. 2) via a jointly formed, circumferential circumferential fold connection 4 are sealingly connected to each other. The sealant 8 used additionally also have adhesive properties.

In Fig. 2 ist in Seitenansicht in Schnittdarstellung der aus den etwa gleichgroßen Behälterhälften 2, 3 zusammensetzbare Druckluftbehälter 1 im unkomplettierten Zustand gezeigt. Die etwa gleichgroßen Behälterhälften 2, 3 sind nach einem Umformverfahren gefertigt und weisen nach diesem Arbeitsschritt zunächst öffnungsseitig, an ihrem Umfang umlaufende, etwa rechtwinklig abragende Stegränder 6, 7 auf, welche nach einer gegebenenfalls angewendeten Wärmebehandlung anschließend durch nichtthermisches Fügen und unter zusätzlicher Verwendung eines Dicht-und/oder Klebemittels 8 über eine gemeinsam gebildete, umfangsmäßig umlaufende Falzverbindung 4 (Fig. 3) abdichtend miteinander verbunden werden. Die zunächst nach einem Umformverfahren geformten, gegebenenfalls thermisch nachbehandelten Behälterhälften 2, 3 können zunächst auf ein spannungsarmes Niveau gebracht werden, bevor sie anschließend durch nichtthermisches Fügen und unter Zuhilfenahme eines Dichtmittels 8 abdichtend miteinander verbunden werden.In Fig. 2 is a side view in a sectional view of the approximately the same size container halves 2, 3 assembled compressed air tank 1 in the uncompleted state shown. The approximately the same size container halves 2, 3 are after a forming process manufactured and after this step initially have an opening side, web edges 6, 7 which run around their circumference and protrude approximately at right angles, which after a possibly applied heat treatment by non-thermal joining and with the additional use of a sealing and / or Adhesive 8 via a jointly formed, circumferential circumferential Folded connection 4 (Fig. 3) can be sealingly connected to one another. The first formed by a forming process, optionally thermally treated Container halves 2, 3 can initially be brought to a low-stress level before using non-thermal joining and with the help of a sealant 8 can be sealingly connected to one another.

In der hier gezeigten Version ist zwischen den etwa rechtwinklig abragenden Stegrändern 6, 7 der Behälterhäften 2, 3 eine optionale Schottwand 5 angeordnet, deren umlaufende Randzone Bestandteil der gemeinsamen Falzverbindung 4 (Fig. 3) der beiden Behälterhälften 2, 3 ist.In the version shown here is between the approximately perpendicular protruding An optional bulkhead 5 is arranged at the web edges 6, 7 of the container halves 2, 3. whose peripheral edge is part of the joint joint 4 (Fig. 3) of the two container halves 2, 3.

In Fig. 3 ist in einem vergrößerten Ausschnitt in Schnittdarstellung eine solche Falzverbindung 4 gemäß der Ausführungsvariante des Druckluftbehälters 1 aus Fig. 2 gezeigt. Die nach einem Falzverfahren erfolgte Umfalzung der beiden Stegränder 6, 7 der Behälterhälften 2, 3 berücksichtigt die zwischen den Stegrändern 6, 7 eingelegte und mit Dicht- und/oder Klebemittel 8 beidseitig versehene Randzone der Schottwand 5. Die Schottwand 5 kann eine im Übergangsbereich der beiden Behälterhälften 2, 3 wirksame, flüssigkeitsundurchlässige, jedoch luftdurchlässige Membran aufweisen, wobei die Schottwand 5 in ihrer Randzone aus einem die Falzum-formung mitmachenden Material besteht. Such a folded connection is shown in an enlarged detail in a sectional view in FIG. 3 4 according to the variant of the compressed air tank 1 from FIG. 2 shown. The folding of the two web edges 6, which was carried out by a folding process, 7 of the container halves 2, 3 takes into account the one inserted between the web edges 6, 7 and provided with sealing and / or adhesive 8 on both sides of the edge zone Bulkhead 5. The bulkhead 5 can be in the transition area of the two container halves 2, 3 effective, liquid-impermeable, but air-permeable membrane have, the bulkhead 5 in its edge zone from a the folded forming participating material.

Nach der mechanischen Umfalzung der Falzverbindung 4 ist eine der Aushärtzeit des Klebemittels 8 entsprechende Zeit abzuwarten, bis der gesamte Druckluftbehälter 1 als fertiggestellt gilt. Gemäß einer hier nicht gezeigten Alternative kann die Schottwand 5 bedarfsweise entfallen.After the mechanical folding of the fold connection 4 is one of the curing time of the adhesive 8 to wait until the entire compressed air tank 1 is considered to be completed. According to an alternative not shown here, the Bulkhead 5 omitted if necessary.

Das zur Herstellung der Behälterhälften 2, 3 erforderliche Umformverfahren kann durch ein Preß-, Tiefzieh-, Fließform-, Drückverfahren oder dergleichen realisiert sein. Die zur Herstellung der Behälterhälften 2, 3 vorgesehenen Bleche können aus korrosionsbeständigen Materalien bestehen und/oder eine korrosionsbestände Beschichtung aufweisen, welche vor oder nach dem Umformvorgang auf die Bleche aufgebracht wird. Jede Behälterhälfte 2, 3 kann dem jeweiligen Umformverfahren angepaßte Radien aufweisen. Die nach dem jeweiligen Umformverfahren erzielten Blechdicken an den Behälterhälften 2, 3 können ein dem zu erwartenden Belastungsfall des Druckluftbehälters 1 angepaßtes Maß aufweisen.The forming process required to produce the container halves 2, 3 can realized by a pressing, deep drawing, flow molding, pressing process or the like his. The sheets provided for producing the container halves 2, 3 can be made from there are corrosion-resistant materials and / or a corrosion-resistant coating have, which before or after the forming process on the sheets is applied. Each container half 2, 3 can the respective forming process have adapted radii. The achieved after the respective forming process Sheet thicknesses on the container halves 2, 3 can be the expected load of the compressed air tank 1 have an adapted dimension.

In Fig. 4 sind in Vorderansicht jeweils zwei Paare von Druckluftbehältern 1 mit unterschiedlichem Querschnitt dargestellt. Dabei ist in strichlierter Darstellung ein Paar von Druckluftbehältern 1 mit einem Kreisquerschnitt gezeigt. Des weiteren ist in linierter Darstellung ein Paar von Druckluftbehältern 1 gezeigt, welche eine von einem Kreisquerschnitt abweichende Querschnittsform aufweisen.In Fig. 4 are two pairs of compressed air tanks 1 with different in front view Cross section shown. There is a pair in dashed lines of compressed air tanks 1 shown with a circular cross section. Furthermore is in lined Representation a pair of compressed air tanks 1 shown, one of a Circular cross-section have a different cross-sectional shape.

Die nach dem erfindungsgemäßen Herstellungsverfahren von Druckluftbehältern 1 ermöglichte letztgenannte Variante einer bombierten Querschnittsformgebung beider Behälterhälften 2, 3 - gemäß der linierten Darstellung - hat den Vorteil eines größeren Füllvolumens sowie einer besseren Volumenausnutzung des von den beiden Druckluftbehältern 1 beanspruchten Raumes.The compressed air tanks 1 according to the manufacturing method according to the invention enabled the latter variant of a cambered cross-sectional shape of both Container halves 2, 3 - according to the lined representation - has the advantage of a larger one Filling volume and better volume utilization of the two Compressed air tanks 1 occupied space.

Die für die Behälterhälften 2, 3 verwendeten Bleche können gegebenenfalls einen Oberflächenschutz aufweisen, welcher vor oder nach dem Umformverfahren auf die Behälterhälften 2, 3 aufgebracht wird. Es können jedoch auch nichtrostende Materialien wie beispielsweise Alulegierungen, nichtrostende Stahlsorten usw. als Bleche verwendet sein. Als Oberflächenschutz können beispielsweise Kunststoffbeschichtungen oder dergleichen zur Anwendung kommen.The sheets used for the container halves 2, 3 can optionally be one Have surface protection, which before or after the forming process on the Container halves 2, 3 is applied. However, it can also be stainless materials such as aluminum alloys, stainless steel types, etc. as sheets be used. Plastic coatings, for example, can be used as surface protection or the like are used.

Die dem jeweiligen Belastungsfall angepaßten Blechdicken der Behälterhälften 2, 3 können bei Aluminium beispielsweise ca. 2 mm und bei Stahl ca. 1,5 mm betragen.The sheet thicknesses of the container halves 2, 3 adapted to the respective load can be approx. 2 mm for aluminum and approx. 1.5 mm for steel.

Claims (10)

Verfahren zur Herstellung eines Druckluftbehälters in Kraftfahrzeugen, gekennzeichnet zunächst durch das Herstellen zweier in etwa gleichgroßer Behälterhälften (2, 3) nach einem Umformverfahren, wobei öffnungsseitig beider Behälterhälften (2, 3) umfangsseitig umlaufende, etwa rechtwinklig hiervon abragende Stegränder (6, 7) gebildet sind, welche in einem nachfolgenden Arbeitsschritt durch nichtthermisches Fügen und unter zusätzlicher Verwendung eines Dichtmittels (8) zu einer gemeinsam gebildeten, umfangsmäßig umlaufenden Falzverbindung (4) umgeformt werden, durch diese beide Behälterhälften (2, 3) abdichtend miteinander verbunden sind.Process for producing a compressed air tank in motor vehicles, characterized first by producing two container halves of approximately the same size (2, 3) according to a forming process, with both container halves on the opening side (2, 3) circumferential, roughly protruding therefrom Web edges (6, 7) are formed, which in a subsequent step by non-thermal joining and with the additional use of a Sealant (8) to a jointly formed, circumferential circumferential Folded connection (4) are formed, through these two container halves (2, 3) are sealed together. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Behälterhälften (2, 3) bei ihrer Herstellung jeweils nach dem Umformverfahren thermisch nachbehandelt werden.Method according to claim 1, characterized in that the container halves (2, 3) thermally during their production in each case by the forming process be treated. Verfahren nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß zur Herstellung der Behälterhälften (2, 3) vorgesehene Bleche aus korrosionsbeständigen Materialien bestehen und/oder eine korrosionsbeständige Beschichtung aufweisen, welche vor oder nach dem Umformvorgang auf die Bleche aufgebracht wird.Method according to one of claims 1 and 2, characterized in that sheets made of corrosion-resistant for the production of the container halves (2, 3) Materials exist and / or a corrosion-resistant coating have, which before or after the forming process on the sheets is applied. Verfahren nach einem oder mehreren der vorangegangenen Ansprüche 1 bis 3, dadurch gekennzeichnet, daß jede Behälterhälfte (2, 3) dem jeweiligen Umformverfahren angepaßte Radien aufweist.Method according to one or more of the preceding claims 1 to 3, characterized in that each container half (2, 3) the respective forming process has adapted radii. Verfahren nach Anspruch 1 bis 4, dadurch gekennzeichnet, daß die nach dem jeweiligen Umformverfahren erzielten Blechdicken an den Behälterhälften (2, 3) ein dem zu erwartenden Belastungsfall des Druckluftbehälters (1) angepaßtes Maß aufweisen. A method according to claim 1 to 4, characterized in that the after sheet metal thicknesses achieved on the container halves (2, 3) adapted to the expected load of the compressed air tank (1) Show measure. Verfahren nach Anspruch 1 bis 5, dadurch gekennzeichnet, daß der Druckluftbehälter (1) eine seiner jeweiligen Einbausituation angepaßte Größe und Form aufweist, und daß gegebenenfalls Befestigungselemente zur Anbringung des Druckluftbehälters (1) in wenigstens einer der beiden Behälterhälften (2, 3) integriert sind.Method according to claims 1 to 5, characterized in that the compressed air container (1) a size and shape adapted to its respective installation situation has, and that optionally fasteners for attaching the Compressed air container (1) integrated in at least one of the two container halves (2, 3) are. Verfahren nach einem der vorangegangenen Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die beiden Behälterhälften (2, 3) eine von einem Kreisquerschnitt abweichende Querschnittsform aufweisen.Method according to one of the preceding claims 1 to 6, characterized in that that the two container halves (2, 3) one of a circular cross section have a different cross-sectional shape. Verfahren nach einem der vorangegangenen Ansprüche 1 bis 7, dadurch gekennzeichnet, daß zwischen den beiden Behälterhälften (2, 3) eine optionale Schottwand (5) angeordnet ist, deren umlaufende Randzone Bestandteil der gemeinsamen Falzverbindung (4) der beiden Behälterhälften (2, 3) ist.Method according to one of the preceding claims 1 to 7, characterized in that that between the two container halves (2, 3) an optional Bulkhead (5) is arranged, the peripheral edge part of which Common fold connection (4) of the two container halves (2, 3). Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß die Schottwand (5) eine im Übergangsbereich der beiden Behälterhälften (2, 3) wirksame, flüssigkeitsundurchlässige, jedoch luftdurchlässige Membran aufweist.Device according to claim 8, characterized in that the bulkhead (5) an effective, liquid-impermeable, in the transition area of the two container halves (2, 3) however, has an air-permeable membrane. Verfahren nach einem oder mehreren der vorangegangenen Ansprüche 1 bis 9, dadurch gekennzeichnet, daß das zur Herstellung der Behälterhälften (2, 3) erforderliche Umformverfahren durch ein Preß-, Tiefzieh-, Fließform-, Drückverfahren oder dergleichen gegeben ist, und daß das Dichtmittel (8) zusätzlich Klebeeigenschaften aufweist.Method according to one or more of the preceding claims 1 to 9, characterized in that for the production of the container halves (2, 3) necessary forming processes by a pressing, deep drawing, flow molding, pressing process or the like is given, and that the sealant (8) additionally Has adhesive properties.
EP00125538A 1999-12-01 2000-11-22 Compressed-air vessel Expired - Lifetime EP1106277B1 (en)

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JP6783277B2 (en) * 2018-09-14 2020-11-11 本田技研工業株式会社 Liner components, high-pressure tanks and their manufacturing methods

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EP1106277B1 (en) 2005-04-13
DE50010043D1 (en) 2005-05-19
DE19957855A1 (en) 2001-06-07
EP1106277A3 (en) 2002-12-18

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