WO2000056536A1 - Conduite de carburant - Google Patents

Conduite de carburant Download PDF

Info

Publication number
WO2000056536A1
WO2000056536A1 PCT/EP2000/002300 EP0002300W WO0056536A1 WO 2000056536 A1 WO2000056536 A1 WO 2000056536A1 EP 0002300 W EP0002300 W EP 0002300W WO 0056536 A1 WO0056536 A1 WO 0056536A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
fuel line
fuel
barrier layer
line according
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.)
Ceased
Application number
PCT/EP2000/002300
Other languages
German (de)
English (en)
Inventor
Joachim Geimer
Martin Ehret
Thorsten Desch
Andreas Seyler
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.)
Veritas AG
Original Assignee
Veritas 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 Veritas AG filed Critical Veritas AG
Publication of WO2000056536A1 publication Critical patent/WO2000056536A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/045—Hoses, i.e. flexible pipes made of rubber or flexible plastics with four or more layers without reinforcement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/01—Arrangement of fuel conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/12—Rigid pipes of plastics with or without reinforcement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L2011/047—Hoses, i.e. flexible pipes made of rubber or flexible plastics with a diffusion barrier layer

Definitions

  • the invention relates to a fuel line with a barrier layer for preventing fuel permeation and a carrier layer surrounding the barrier layer.
  • Such fuel lines and ventilation lines are known from the prior art.
  • the fuel is conveyed from the fuel tank to the engine via the line and the fuel is ventilated.
  • the fuels are generally gasoline or diesel.
  • the fuel line can either be flexible or rigid.
  • the barrier layer is made from polyvinylidene fluoride (PVDF) or else ethylene vinyl alcohol copolymer (EVOH).
  • the material of the carrier layer is generally polyamide (PA), such as. B. PA11 / 12.
  • PA polyamide
  • a disadvantage of these known fuel lines is that the material of the carrier layer causes high costs.
  • the fuel lines must also be attached to the fuel tank via complicated line connections. However, other materials are not suitable for the carrier layer, since there are problems when connecting to the barrier layer.
  • a fuel line of the type mentioned at the outset in which the backing layer has polyethylene and an adhesion promoter layer with polyamide materials is provided between the barrier layer and the backing layer.
  • the carrier layer can consist entirely of polyethylene materials.
  • the carrier layer consists of high molecular weight polyethylene (PE-HD).
  • PE-HD high molecular weight polyethylene
  • Such a material has sufficient strength at low cost. This material is also particularly suitable for welding
  • adhesion promoter layer consists entirely of polyamide materials. This enables the necessary strength of the adhesion promoter layer to be achieved
  • adhesion promoter layer consists of PE1 1/12. This material can be particularly suitable as an adhesion promoter layer
  • the barrier layer can have polyvinylidemfluoride (PVDF). This material has already been used as a barrier layer
  • the barrier layer can also have ethylene vinyl alcohol copolymer (EVOH). This material is also very suitable as a barrier layer
  • FIG. 1 shows a first embodiment of the invention in a schematic illustration
  • Figure 2 shows a second embodiment of the invention in a schematic representation
  • the fuel line 1 according to the invention is shown schematically in FIG. 1 in accordance with a first embodiment.
  • the inner wall of the fuel line 1 is formed by a barrier layer 2 made of polyvinylidemfluoride (PVDF) there is a carrier material 4 made of high molecular weight polyethylene (PE-HD)
  • PVDF polyvinylidemfluoride
  • PE-HD high molecular weight polyethylene
  • the barrier layer prevents permeation of the fuel that is required through the line. It therefore consists of a correspondingly resistant material.
  • the adhesion promoter made of polyamide material, in particular PA1 1/12, ensures a firm connection of the barrier layer 2 and the carrier layer 4.
  • the carrier layer is made of polyethylene material is produced, there is the possibility of welding the support layer to the material of a tank, since the tanks are usually made of polyethylene materials.
  • the adhesion promoter 3 is required to ensure a firm connection between the barrier layer 2 and the support layer
  • the novel fuel line can thus be realized with a relatively inexpensive carrier material.
  • the use of polyethylene materials enables welding to the wall of the tank
  • the carrier material is a polyamide
  • the manufacturing costs for producing the fuel line itself and on the other hand the costs for attaching the fuel line to a tank can be reduced.
  • the novel fuel line can either be rigid as a tube or else flexible
  • FIG. 2 shows a second embodiment of the fuel line according to the invention.
  • an inner layer 5 is additionally provided.
  • This inner layer also consists of polyamide materials, namely PA1 1/12.
  • the barrier layer can be protected from contact with fuel by means of the inner layer. Otherwise, the mode of operation of the second embodiment of the invention is the same as that of the first embodiment of the invention

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Glass Compositions (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention concerne une conduite de carburant comprenant une couche barrière destinée à empêcher la perméation de carburant et une couche support entourant la couche barrière. Pour améliorer une conduite de carburant du type susmentionné de telle façon qu'elle soit économique à fabriquer et facile à fixer au réservoir de carburant, la couche support présente du polyéthylène et une couche d'adhérence, intercalée entre la couche barrière et la couche support, présente des matières de polyamide.
PCT/EP2000/002300 1999-03-18 2000-03-15 Conduite de carburant Ceased WO2000056536A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29905010U DE29905010U1 (de) 1999-03-18 1999-03-18 Kraftstoffleitung
DE29905010.6 1999-03-18

Publications (1)

Publication Number Publication Date
WO2000056536A1 true WO2000056536A1 (fr) 2000-09-28

Family

ID=8071061

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2000/002300 Ceased WO2000056536A1 (fr) 1999-03-18 2000-03-15 Conduite de carburant

Country Status (2)

Country Link
DE (1) DE29905010U1 (fr)
WO (1) WO2000056536A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10203626B4 (de) 2002-01-30 2004-01-08 Veritas Ag Mehrschichtiges Rohr bzw. Schlauch

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5443874A (en) * 1993-05-24 1995-08-22 Mitsubishi Petrochemical Co., Ltd. Hollow multi-layer molding
EP0673762A2 (fr) * 1994-03-24 1995-09-27 Hüls Aktiengesellschaft Tuyau multicouche en plastique
US5858492A (en) * 1995-03-01 1999-01-12 Huels Aktiengesellschaft Thermoplastic multilayer composites

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4309829C2 (de) 1993-03-26 1996-04-18 Technoflow Tube Systems Gmbh Verwendung von Sperrschichtkunststoffen als Festigkeitsträger in Kraftfahrzeugrohrleitungen
DE29502265U1 (de) 1995-02-13 1995-06-08 Deutsche Tecalemit GmbH, 33659 Bielefeld Mehrschichtiges Kunststoffrohr
DE19537003A1 (de) 1995-10-04 1997-04-10 Inventa Ag Haftvermittler auf Polyamidbasis

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5443874A (en) * 1993-05-24 1995-08-22 Mitsubishi Petrochemical Co., Ltd. Hollow multi-layer molding
EP0673762A2 (fr) * 1994-03-24 1995-09-27 Hüls Aktiengesellschaft Tuyau multicouche en plastique
US5858492A (en) * 1995-03-01 1999-01-12 Huels Aktiengesellschaft Thermoplastic multilayer composites

Also Published As

Publication number Publication date
DE29905010U1 (de) 1999-06-10

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