WO2019081458A1 - Conduite de carburant, pièce de raccordement et système d'alimentation en carburant - Google Patents

Conduite de carburant, pièce de raccordement et système d'alimentation en carburant

Info

Publication number
WO2019081458A1
WO2019081458A1 PCT/EP2018/078954 EP2018078954W WO2019081458A1 WO 2019081458 A1 WO2019081458 A1 WO 2019081458A1 EP 2018078954 W EP2018078954 W EP 2018078954W WO 2019081458 A1 WO2019081458 A1 WO 2019081458A1
Authority
WO
WIPO (PCT)
Prior art keywords
fuel
fuel line
chamber
line according
electrically conductive
Prior art date
Application number
PCT/EP2018/078954
Other languages
German (de)
English (en)
Inventor
Hans-Guenter Benner
Matthias Kadler
Original Assignee
Continental Automotive Gmbh
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 Continental Automotive Gmbh filed Critical Continental Automotive Gmbh
Publication of WO2019081458A1 publication Critical patent/WO2019081458A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
    • F02M37/0017—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor related to fuel pipes or their connections, e.g. joints or sealings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M43/00—Fuel-injection apparatus operating simultaneously on two or more fuels, or on a liquid fuel and another liquid, e.g. the other liquid being an anti-knock additive
    • 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
    • F16L11/12—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
    • F16L11/127—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting electrically conducting
    • 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
    • F16L11/22—Multi-channel hoses
    • 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
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/56—Couplings of the quick-acting type for double-walled or multi-channel pipes or pipe assemblies
    • 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
    • F16L39/00—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
    • F16L39/02—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies for hoses
    • 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
    • F16L9/125—Rigid pipes of plastics with or without reinforcement electrically conducting
    • 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
    • F16L9/18—Double-walled pipes; Multi-channel pipes or pipe assemblies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/90—Selection of particular materials
    • F02M2200/9015—Elastomeric or plastic materials

Definitions

  • the present invention relates to a fuel line and a fitting for joining with such a fuel line for use in a fuel-carrying vehicle and a fuel supply system with at least one such fuel line and at least one such connector.
  • a fuel line is basically any kind of vehicle to understand, which must be supplied for operation with a liquid and / or gaseous fuel, but in particular passenger cars and / or commercial vehicles.
  • a fuel is guided both inside and outside of a fuel tank in fuel lines, which lead the fuel only in a Strö ⁇ tion direction, approximately to an internal combustion engine or to a disposed within the fuel tank
  • a fuel line for use in a fuel-bearing vehicle is proposed.
  • the fuel line is formed as a one-piece multi-chamber line with at least two mutually separate fuel-carrying lines, which each form a chamber, wherein a first chamber leads a fuel in a first flow direction, whereas a second chamber the fuel in the first or in a second, the first Flow direction opposite flow direction leads.
  • a "fuel line” is to be understood as meaning a flexible or rigid tube or hose which is flexible in nature, for example in the form of a plastic or rubber hose.
  • the flexibility of the fuel line can also contribute, for example, to the formation of a waveform at least in sections, so that the fuel line can be formed either in sections or at least substantially entirely as a so-called corrugated tube or a corrugated tube.
  • “mutually separate fuel-carrying lines” is to be understood that the individual lines formed by the respectively associated chambers are continuously separated from each other over their longitudinal extent.
  • the proposed fuel line also contributes to the reduction of a variety of parts. This in turn goes hand in hand with a reduction in the cost of a fuel supply system, including storage costs are to be expected, and also with a reduction of assembly costs.
  • the proposed fuel line also contributes to the reduction of a variety of parts. This in turn goes hand in hand with a reduction in the cost of a fuel supply system, including storage costs are to be expected, and also with a reduction of assembly costs.
  • Fuel line at least three separate fuel-carrying lines, which each form a chamber. In principle, however, the number of these lines is freely selectable as needed.
  • the cross section of the fuel line can be designed as desired, e.g. circular, semicircular, oval-shaped, semi-oval, triangular, square, rectangular or crescent-shaped.
  • the cross-sections of the individual chambers may be arbitrary, e.g. circular, semi-circular, oval-shaped, semi-oval, triangular, square, rectangular or crescent-shaped.
  • the walls between the individual chambers can have the same and / or unequal thicknesses.
  • the fuel line can be made by extrusion of a plastic to form the individual chambers.
  • the fuel line may be designed antistatic, wherein the fuel line at least one electrically conductive strip for dissipating a static charge to a
  • the electrically conductive strip has ground potential.
  • at least one such strip can be assigned to each chamber.
  • the electrically conductive strip extends, for example, over the entire length of the fuel line.
  • the electrically conductive strip can be aligned in the longitudinal direction of the fuel line, since this also contributes to minimizing the required electrically conductive material.
  • the electrically conductive strip may be formed as an integral part of a coextruded plastic line, wherein the strip is formed of an electrically conductive plastic.
  • thermoplastic POM HOSTAFORM EC140XF EC140XF
  • an electrically conductive strip may be printed on the fuel line.
  • suitable, printable electrically conductive materials are known in the art. These materials will therefore not be discussed in more detail below.
  • an electrically conductive strip, approximately in the form of a metallic strip may be adhered to the fuel line. Suitable adhesive materials for such an application, for example in the form of a metallic adhesive strip, are known to the person skilled in the art. These materials will therefore not be discussed in detail below.
  • the connector can be joined with a single fuel line or more fuel lines of the type described above.
  • connection piece comprises at least a first fuel-carrying connection piece pipe section and a second fuel-carrying connection piece pipe section, wherein both connection piece pipe sections are spaced apart from one another and formed on a common connection piece base section.
  • the connector includes at least a first, a second and a third fuel-carrying fitting tube portion, wherein the individual fitting tube portions are different from each beab ⁇ standet and open into an associated fuel-carrying line of the terminal base portion.
  • the cross sections of the individual connecting piece pipe sections can be designed to be asymmetrical with respect to one another in order to represent the aforementioned Poka Yoke principle.
  • the cross-sections may be circular, semicircular, oval-shaped, semi-oval, triangular, square, rectangular or crescent-shaped. be formed.
  • the lines inside the connection piece base section can also have any desired cross- sectional shape.
  • the connector is attached to a an opening of a fuel tank closing flange of a fuel delivery unit formed ⁇ . Furthermore, a fuel supply system of a
  • FIG. 1 shows a prior art level sensor designed for use in a fuel tank
  • FIG. 2 shows the suction unit shown in Fig.l with a proposed fuel line
  • FIG. 3 shows a proposed connection piece for joining with a proposed fuel line in a perspective view and in a side view.
  • Fig.l illustrates a part of a known in the prior art suction unit 2, also called Vorratsgeber, for tank level measurement of particular commercial and special vehicles.
  • the suction unit 2 comprises a fastening and connection section 4, which can be fastened to a fuel tank via a bayonet flange (not shown here) and, on the other hand, provides four connections 4a, 4b, 4c, 4d for fuel-carrying lines.
  • the suction unit 2 together with the bayonet flange thereby closes an opening of the fuel tank, from which the suction unit 2 dips into the fuel tank.
  • the three illustrated separate fuel lines 8, 10, 12 each extend from an associated connection of a connection section 6 to a region near the bottom of the fuel tank.
  • Fuel line 8 is in fluid communication with a first port 4 a of an engine lead, whereas the second fuel line 10 is in fluid communication
  • Connection 4b of an engine return in fluid communication ⁇ connection is.
  • the third fuel line 12, however, is in fluid communication with a third port 4c of a flow of auxiliary heating.
  • a fourth connection 4d Via a fourth connection 4d, a return of the auxiliary heater is ensured, wherein no separate fuel line is provided for the return of the additional heating in the fuel tank, which extends from the terminal 4d in the fuel tank.
  • the proposed suction unit 2 of Figure 2 differs from the representation in Fig.l by the fuel line 14 which is formed as a one-piece multi-chamber line with three vonei ⁇ separate fuel-carrying lines 8, 10, 12, wherein the individual lines 8, 10, 12 each form a chamber 14 ⁇ , 14n, 14m.
  • the first chamber 14 ⁇ forms the first fuel line 8 previously mentioned with reference to FIG. 1, whereas the second chamber 14n forms the aforementioned second fuel line 10 and the third chamber 14m forms the aforementioned third fuel line 12.
  • FIG. 3 illustrates a connecting piece 16 for joining with a one-piece two-chamber line 14.
  • the connecting piece 16 is formed on a flange 22 of a fuel delivery unit, for example, by injection molding.
  • the flange 22 closes in its position of use an opening of a fuel tank through which the fuel delivery unit is inserted into the fuel tank.
  • the connector 16 includes a first fuel-carrying connecting piece pipe section 18i and a second fuel-carrying connecting pipe section 18n, wherein both connecting pipe sections 18i, 18n, for example, over their entire longitudinal extent spaced from each other and on a common terminal base portion 20, 20 Ir 20 ⁇ are formed.
  • the two connecting piece pipe portions 18i, 18n are each provided with a Christmas tree profile.
  • the two to one another in X - X forms longitudinally offset portions 20 Ir 20n, two separate, fuel carrying lines 24 ⁇ , 24n formed in which open the respective, associated connector tube sections 18i, 18n.
  • two line sections 26, 28 integrally formed each with a fir-tree profile 30, for example, by injection molding, in which the respective, associated wires, lead 24 ⁇ 24n.
  • the first fitting pipe portion 18i in conjunction with the associated first line 24 ⁇ and the conduit portion 28 may cause a fuel in a first flow direction, whereas the second fitting tube portion 18n in United ⁇ bond with the associated second line 24n and the pipe section 26 the fuel first in the or in a second, opposite to the first flow direction Strö ⁇ mungsraum leads.
  • the fitting tube portion 18i the pipe can stand 28 with a motor lead is in fluid flow connection 24 ⁇ and the lead portion, the fitting tube portion 18n, the line 24n and the pipe section 28 may be associated with an engine return line in fluid flow communication.
  • both fitting tube portions 18i, 18n are formed mutually asymmetrically excluded advantageously, so that an incorrect joining with the two-chamber pipe 14, which connects the two chambers 14 ⁇ , 14n forms, according to the aforementioned "Poka Yoke" - the principle is omitted.
  • the two chambers 14 i, 14 n are formed with respect to their cross-section correspon ⁇ dierend for shaping the respectively associated connection piece pipe sections 1 8 i, 1 8 n.
  • the two-chamber line 14 is also advantageously carried out anti ⁇ static.
  • each of the two chambers 14 ⁇ , 14 n associated with an electrically conductive strip 17 for deriving a static charge to a ground potential, wherein the two strips 17 extend over the entire length of the two-chamber line 14, for example, while aligned in the longitudinal direction of the two-chamber line 14 are.
  • the strips 17 are formed, for example, as an integral part of a coextruded plastic line.
  • at least one electrically conductive strip may be printed onto the fuel line and / or adhesively bonded. Suitable, printable or stickable, electrically conductive materials for such an application are known in the art. These will therefore not be discussed in more detail below.
  • the two-chamber line 14 may further be formed flexible at least at its the connecting piece 1 6 facing the end 14 1 , by approximately wavy sections formed and / or their choice of materials is taken accordingly.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

L'invention concerne une conduite de carburant destinée à être utilisée dans un véhicule à carburant, la conduite de carburant (14) étant réalisée sous la forme d'une conduite d'un seul tenant à plusieurs chambres, comportant au moins deux conduites de carburant (8, 10) séparées l'une de l'autre, qui forment chacune une chambre (14I, 14II). Une première chambre (14I) conduit un carburant dans un premier sens d'écoulement, tandis qu'une deuxième chambre (14II) conduit le carburant dans le premier ou dans un deuxième sens d'écoulement opposé au premier sens d'écoulement. L'invention concerne en outre une pièce de raccordement (16) conçue de manière correspondante, destinée à être reliée à une telle conduite à plusieurs chambres. L'invention concerne en outre un système d'alimentation en carburant pour un véhicule, le système d'alimentation en carburant présentant au moins une conduite de carburant et au moins une pièce de raccordement du type décrit ci-dessus.
PCT/EP2018/078954 2017-10-26 2018-10-23 Conduite de carburant, pièce de raccordement et système d'alimentation en carburant WO2019081458A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017219263.1 2017-10-26
DE102017219263.1A DE102017219263A1 (de) 2017-10-26 2017-10-26 Kraftstoffleitung, Anschlussstück und Kraftstoffversorgungssystem

Publications (1)

Publication Number Publication Date
WO2019081458A1 true WO2019081458A1 (fr) 2019-05-02

Family

ID=64049149

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/078954 WO2019081458A1 (fr) 2017-10-26 2018-10-23 Conduite de carburant, pièce de raccordement et système d'alimentation en carburant

Country Status (2)

Country Link
DE (1) DE102017219263A1 (fr)
WO (1) WO2019081458A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994010491A1 (fr) * 1992-10-30 1994-05-11 Nobel Plastiques Canalisation de fluide realisee en matiere plastique
EP1413813A1 (fr) * 2002-10-21 2004-04-28 Siemens Aktiengesellschaft Tuyau pour un dispositif d'alimentation en carburant
US20050056332A1 (en) * 2003-09-15 2005-03-17 Martucci Norman S. Coaxial hose assembly and method of making same

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1076498A (en) * 1965-09-11 1967-07-19 Ford Motor Co Fuel delivery system for motor vehicles
NO140919C (no) * 1978-04-17 1979-12-12 Helge Dybvig Anordning ved drivstoffsystem, saerlig for baater
US5329899A (en) * 1993-10-12 1994-07-19 General Motors Corporation Fuel system pressure fuse
GB2290848A (en) * 1994-07-01 1996-01-10 Draftex Ind Ltd Multi channel pipes
DE19504609C2 (de) * 1995-02-13 1997-02-20 Tecalemit Gmbh Deutsche Mehrschichtig - mehrkanaliges Kunststoffrohr
DE102014103479A1 (de) * 2014-03-14 2015-09-17 Veritas Ag Schlauchleitung für ein Fluid

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994010491A1 (fr) * 1992-10-30 1994-05-11 Nobel Plastiques Canalisation de fluide realisee en matiere plastique
EP1413813A1 (fr) * 2002-10-21 2004-04-28 Siemens Aktiengesellschaft Tuyau pour un dispositif d'alimentation en carburant
US20050056332A1 (en) * 2003-09-15 2005-03-17 Martucci Norman S. Coaxial hose assembly and method of making same

Also Published As

Publication number Publication date
DE102017219263A1 (de) 2019-05-02

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