WO2015086426A1 - Conduite, de préférence conduite d'amenée de carburant - Google Patents

Conduite, de préférence conduite d'amenée de carburant Download PDF

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Publication number
WO2015086426A1
WO2015086426A1 PCT/EP2014/076575 EP2014076575W WO2015086426A1 WO 2015086426 A1 WO2015086426 A1 WO 2015086426A1 EP 2014076575 W EP2014076575 W EP 2014076575W WO 2015086426 A1 WO2015086426 A1 WO 2015086426A1
Authority
WO
WIPO (PCT)
Prior art keywords
hose
pressure hose
pressure
bar
line
Prior art date
Application number
PCT/EP2014/076575
Other languages
German (de)
English (en)
Inventor
Erwin Weh
Wolfgang Weh
Original Assignee
Erwin Weh
Wolfgang Weh
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 Erwin Weh, Wolfgang Weh filed Critical Erwin Weh
Priority to DE112014005616.2T priority Critical patent/DE112014005616A5/de
Publication of WO2015086426A1 publication Critical patent/WO2015086426A1/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
    • 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
    • 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
    • F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/20—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members
    • F16L33/207—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members only a sleeve being contracted on the hose
    • F16L33/2071—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members only a sleeve being contracted on the hose the sleeve being a separate connecting member
    • F16L33/2073—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members only a sleeve being contracted on the hose the sleeve being a separate connecting member directly connected to the rigid member
    • F16L33/2076—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members only a sleeve being contracted on the hose the sleeve being a separate connecting member directly connected to the rigid member by plastic deformation
    • 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
    • F02M55/004—Joints; Sealings
    • F02M55/005—Joints; Sealings for high pressure conduits, e.g. connected to pump outlet or to injector inlet

Definitions

  • the invention relates to a line, preferably a fuel supply line, in particular for gaseous media, preferably natural gas, preferably under high pressure, preferably up to 400 bar, preferably in the range of 150 to 400 bar, more preferably in the range of 200 to 350 bar and a fuel supply device comprising at least one such a line.
  • a fuel supply line in particular for gaseous media, preferably natural gas, preferably under high pressure, preferably up to 400 bar, preferably in the range of 150 to 400 bar, more preferably in the range of 200 to 350 bar and a fuel supply device comprising at least one such a line.
  • Such lines are used in particular in motor vehicles to fill gas in a container and from a container, in particular a
  • Fuel tank of a vehicle to a consumer for example, to lead an internal combustion engine. So this line can connect all components in the high-pressure and low-pressure system.
  • Low-pressure systems are referred to systems in the pressure range of 1 bar to 50 bar.
  • the pressure in the fuel tank, in which the gaseous medium, for example natural gas or hydrogen is stored can be up to 400 bar, with pressures in the range above 150 to 400 bar are preferred.
  • the pressures in the tank can drop to 10 bar.
  • In the line is then a pressure of 10 bar to 400 bar.
  • the indicated pressures are suitable for the delivery of natural gas or hydrogen from a tank to a consumer.
  • gaseous media such as natural gas to be transported quickly and safely from a container to a consumer.
  • Combustion engine conventionally a metal fuel line, preferably selected stainless steel, in particular because of the high pressures. Another Reason for the choice of the metal lines were high demands on the
  • Temperature range above 100 ° C and at high pressures are provided. Furthermore, a simple manufacturability and easy assembly is desired.
  • a line in particular a fuel line, for gaseous media, preferably natural gas, preferably under high pressure, preferably up to 400 bar, in particular 10 bar up to 400 bar, in particular in the range of more than 150 bar, in particular more than 200 bar, preferably in the range above 150 to 400 bar, more preferably in the range of about 200 to 350 bar is suitable and a high-pressure hose with a first high-pressure hose end and a second high-pressure hose end, preferably made of an elastic, in particular a plastic material and at least one Connecting device on the first and / or second
  • the connecting device comprises a hose nozzle and a pressing piece, preferably a compression sleeve.
  • the line is characterized in that the first and / or second
  • High-pressure hose end is clamped between connection spout and pressing piece and a sealing element between the hose nozzle and a tube inner wall of the first and / or second high-pressure hose is arranged.
  • the pressure of the gaseous medium, in particular natural gas at full tank can be 400 bar and drop to, for example, 10 bar with an empty tank.
  • High-pressure hose end is arranged so that at temperatures above 100 ° C, in particular at about 120 ° C, leakage is counteracted.
  • the O-ring is preferably positioned on the hose nozzle so that after the
  • the pressing piece in particular in the form of the compression sleeve, extends over the sealing element.
  • the pressing piece, in particular the pressing sleeve has a recess in the region of the sealing element.
  • Connecting device 20.1 with the high-pressure hose can be pressed in the Range 150 bar to 400 bar for the passed medium, preferably a gas in a temperature range from -40 ° C to + 120 ° C leakage rates of less than 1 x 10 "2 mbar xl / s, preferably less than 1 x 10 " 4 mbar xl / s, preferably in the range of 1 x 10 "6 mbar xl / s to 1 x 10 " 2 mbar xl / s can be achieved.
  • the hose nozzle has a Christmas tree profile.
  • Fir tree profile is preferred on the inner surface of the
  • the hose nozzle is a seal to the hose, as well as a
  • the sealing element is preferably designed in the form of an O-ring or molded seal, wherein the O-ring preferably comprises elastomers as materials.
  • Elastomers for the sealing element include, but are not limited to, for example:
  • NBR Nitrile butadiene rubber
  • HNBR Hydrogenated acrylonitrile butadiene rubber
  • FFKM Perfluoro rubber
  • Ethylene-propylene-diene rubber EPDM
  • the application of these elastomers can be carried out by various methods, such. B. by plugging, vulcanization, bonding, gluing or
  • Sealing contour on the first and / or second high-pressure hose end includes opposite side.
  • Fuel line is also available at high pressures up to 400 bar.
  • the Abdichtkontur is possible in various designs, suitable for the respective
  • a Abdichtkontur in the form of a cone for example, a cone has been found at an angle of 20 °, which can be screwed and tightened by torque Also other connection contours, such. As a straight pipe connection or other Konturen nowadays with different angles are possible.
  • connection device or hose nozzle can also directly to a
  • a fuel supply device for example a tank nipple, a check valve, a pressure regulator, a
  • Cylinder valve, a rail, a filter or a shut-off valve be attached.
  • the hose nozzle, to which the flexible high-pressure hose is pressed by means of the pressing piece, in particular in the form of a compression sleeve, is a single piece
  • the high pressure hose is preferably made of a plastic material, in particular a multi-component material.
  • the high-pressure hose comprises a nylon (polyamide 6) hose core, a reinforcing layer arranged around the hose core, e.g. B. aramid fibers and arranged around the reinforcing layer protective layer.
  • a hose has the advantage that it can absorb high pressures.
  • Other advantages include cost-effective design, high temperature resistance, high flexibility, low weight and high resistance to environmental influences.
  • a protective hose for the high-pressure hose which hose is designed in particular as a corrugated hose.
  • the invention also provides a fuel supply device, in particular for gaseous media, in particular gas-powered
  • Motor vehicles comprising a flexible conduit with a flexible high-pressure hose and a connection device to a first and / or second high-pressure hose end, wherein the connecting device a
  • Hose nozzle and a pressing piece includes, as well as a sealing element between hose nozzle and hose inner wall of the high-pressure hose.
  • Fig. 1 a cross section through a conduit according to the invention with a
  • FIG. 1 b a top view of a hose-like FIG. 1 a with a first and a second high-pressure hose end arranged connection device and protective hose;
  • Fig. 2a section through a connecting device with hose nozzle
  • connection device 2b shows a three-dimensional view of a connection device
  • Fig. 2c view of a connection device
  • Fig. 1 a is a section of a line according to the invention, which finds particular use as a fuel supply line and by a high flexibility and flexibility.
  • the line 1 in particular for gaseous media, preferably natural gas, preferably below
  • High pressure preferably up to 400 bar, in particular 10 bar to 400 bar,
  • a high-pressure hose 3 which preferably has a polynuclear structure as shown in Figure 3 , having.
  • the embodiment of the hose according to FIG. 1a comprises a
  • the protective tube 5 is as
  • the protective tube preferably comprises polypropylene as the material and is hardly inflammable, so that it also represents a fire protection. It has a very high UV resistance. Due to the formation of a corrugated hose, a minimum bending radius of 40 mm can be used for the pipe
  • High pressure hose 3 and protective tube 5 can be realized.
  • the line comprises a at the first high-pressure hose end 10. 1 and at the second high-pressure hose end
  • the first connection piece 20.1 comprises a hose nozzle 22.1 and an adjoining sealing contour 24.1. Further provided is a pressing piece 26.1, which cooperates with the hose nozzle 22.1 and connects the high pressure hose 3 at the high pressure hose end 10.1 pressure-tight to the connecting device 20.1 due to a pressing action.
  • the connecting device comprises a hose nozzle 22.1 with a
  • FIGS. 2a-2c This embodiment is shown in more detail in FIGS. 2a-2c.
  • the high-pressure hose can first be cut off to the required length. Then, the compression sleeve 26.1 is slipped over the high-pressure hose 3 in the region of the high-pressure hose end. After the compression sleeve has been pushed over the high-pressure hose end, the connection device with the hose nozzle 22.1 is inserted into the high-pressure hose.
  • a sealing element 30.1 preferably in the form of an O-ring or molded seal between the hose nozzle and the inside of the high-pressure hose end to install.
  • the sealing element 30.1 guarantees the pressure-tight connection even if at higher
  • the sealing element 30.1 is preferably made of an elastomer, in particular without limitation thereto:
  • NBR Nitrile butadiene rubber
  • HNBR Hydrogenated acrylonitrilebuadiene rubber
  • FFKM Perfluoro rubber
  • EPDM Ethylene-propylene-diene rubber
  • the compression according to the invention and the additional sealing element 30.1 is a pressure-tight connection at pressures preferably up to 400 bar, in particular in the range 150 to 400 bar, preferably in the range of 200 to 350 bar and in the temperature range -40 ° C to + 120 ° C. Provided. It is particularly preferred if the pressure-tight connection of
  • Pressure-tightness is provided at the specified pressure of 260 bar in a temperature range from -40 ° C to + 120 ° C.
  • Under pressure-tight means in the present invention that the leakage rate when using natural gas is less than 1 x 10 "2 mbar xl / s, preferably less than 1 x 10 " 4 mbar xl / s.
  • Such a low leakage rate is surprisingly achieved by a plurality of measures which cooperate and as
  • the pressing piece 26.1 extends in the form of a compression sleeve over the
  • Sealing element 30.1 away Such a configuration makes it possible that the sealing element after pressing the compression sleeve assumes a sealing function, which can counteract leaks at temperatures above 100 ° C, in particular 120 ° C.
  • RT indicates room temperature
  • HNBR an O-ring of hydrogenated acrylonitrile-butadiene rubber
  • FKM an O-ring
  • ECE R1 10, Annex 5H The tightness at room temperature with 10 bar and 390 bar pressure is measured before the start of the temperature cycles.
  • the inner diameter D inn en of the high-pressure hose is without
  • the outer diameter D aU SEN the high pressure hose preferably 8 ⁇ 0.3 mm.
  • a protective cap z. B preferably a Gummiendmuffe or plastic clip 40.1, 40.2 is slipped. This prevents the shifting of the corrugated tube 5 on the
  • the connecting cone 24.1 is preferably a 20 ° cone, which is inserted to the appropriate terminal to a dense
  • the second high-pressure hose end 10.2 is a connection device as at the first high-pressure hose end 10.1
  • Fig. 1 b is a plan view of the conduit according to the invention is shown. Same components as in Fig. 1 a are marked with the same reference numerals. Good to see is the protective tube 5 and attached via the protective tube 5 rubber stopper 40.1, 40.2 and the union nuts 50.2, 50.1, with which the inventive line, preferably as a fuel line
  • Use can be connected to other components of the vehicle, such as the power or the internal combustion engine.
  • connecting pieces which are connected to the high-pressure hose are always straight and are always connected to a component such as the fuel tank or engine by means of the union nut 50.1, other configurations of the connecting device are also conceivable without being thought deviated from the invention.
  • a sealing point is saved, namely in the region of the connecting cone or the
  • connection device 20.1 used in Figs. 1 a and 1 b is shown in more detail again.
  • O-shaped sealing element or sealing ring 30.1 which ensures that changes in length and flow of the high-pressure hose, for example, by temperature change, especially temperature increase, is compensated and a pressure-tight connection throughout
  • Fig. 2a further the Abdichtkontur 24.1 in the form of a 20 ° - cone 1 10.1.
  • the 20 ° cone 1 10.1 is placed in the receiving part close to the plant with a counterpart and achieved a tight connection between Abdichtkontur 24.1 and the counterpart.
  • Fig. 2b is a three-dimensional view of a connecting device, wherein the same components as in Fig. 1 a are designated by the same reference numerals. Clearly visible is the compression sleeve 26.1 and the union nut 50.1 with the internal thread 1 12.1. Fig. 2c shows a plan view in side view. Again, the same components are assigned the same reference numerals. Clearly visible the compression sleeve 26.2 and the nut 50.1.
  • FIG. 3 shows in detail the view of an embodiment of a high-pressure hose 3 which is introduced into the connecting device.
  • the illustrated embodiment has a total of three layers, one
  • Tube core 200 on the inside or the inner tube wall 202, the protective sleeve in the form of the Christmas tree profile is applied and with the
  • Fir tree profile is compressed pressure-tight in the installed state.
  • the tube core 200 is made of, for example, nylon (polyamide 6).
  • the tubular core 200 surrounds a reinforcing layer, preferably in the form of an aramid fabric 210.
  • the aramid fabric 210 in turn is enclosed by an outer tube 220, with a tube outer wall 222 which in turn is preferably made of nylon (polyamide 6).
  • the exemplary high-pressure hose is merely an embodiment of a high-pressure hose and not limited thereto.
  • the high-pressure hose shown in the embodiment has the advantage that it can absorb high pressures and has a low-cost construction. Furthermore, he shows a high
  • FIGS. 4a to 5b show embodiments of the invention
  • connection devices are possible with 90 ° connections and 45 ° connections.
  • the connecting pieces shown in FIGS. 4a-5b are only to be understood as examples and in no way conclusive.
  • a line is given for the first time, which is preferably used as a fuel supply line for gaseous media, preferably natural gas, preferably under high pressure, preferably up to 400 bar, in particular in the range of 150 to 400 bar initiated natural gas, characterized in that it firstly has a high flexibility, on the other hand, a sufficient leak-free seal flexible high-pressure hose.
  • gaseous media preferably natural gas
  • high pressure preferably up to 400 bar
  • the invention allows connections between 0 and 180 degrees.

Abstract

L'invention concerne une conduite, de préférence une conduite d'amenée de carburant, notamment pour des fluides gazeux, de préférence du gaz naturel, de préférence sous haute pression, de préférence jusqu'à 400 bar dans la plage de 150 à 400 bar, surtout de préférence dans la plage de 200 à 350 bar, comprenant au moins un tuyau à haute pression possédant une première extrémité de tuyau à haute pression et une deuxième extrémité de tuyau à haute pression; et au moins un dispositif de raccordement sur la première et/ou la deuxième extrémité de tuyau à haute pression. Le dispositif de raccordement comprend un embout à olive et une pièce de compression, de préférence un manchon de compression, la première et/ou la deuxième extrémité de tuyau à haute pression est serrée entre l'embout à olive et la pièce de compression, et un élément d'étanchéité est disposé entre l'embout à olive et une paroi intérieur de tuyau de la première et/ou de la deuxième extrémité de tuyau à haute pression.
PCT/EP2014/076575 2013-12-10 2014-12-04 Conduite, de préférence conduite d'amenée de carburant WO2015086426A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112014005616.2T DE112014005616A5 (de) 2013-12-10 2014-12-04 Leitung, bevorzugt Kraftstoffzufuhrleitung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013020708.8 2013-12-10
DE102013020708.8A DE102013020708A1 (de) 2013-12-10 2013-12-10 Leitung, bevorzugt Kraftstoffzufuhrleitung

Publications (1)

Publication Number Publication Date
WO2015086426A1 true WO2015086426A1 (fr) 2015-06-18

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PCT/EP2014/076575 WO2015086426A1 (fr) 2013-12-10 2014-12-04 Conduite, de préférence conduite d'amenée de carburant

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DE (2) DE102013020708A1 (fr)
WO (1) WO2015086426A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015114116A1 (de) * 2015-08-26 2017-03-02 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Rohrverbinder zum Anschließen einer Kraftstoffleitung einer Kraftstoffversorgung für ein Kraftfahrzeugmotor
KR20210057906A (ko) * 2019-11-13 2021-05-24 현대자동차주식회사 자동차의 연료튜브 프로텍터

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5014423A (en) * 1989-03-02 1991-05-14 Flow Systems, Inc. Method for forming a sealed coupling using a high pressure hose fitting with an O-ring type seal
US5096231A (en) * 1990-11-28 1992-03-17 S&H Fabricating And Engineering Inc. Flexible fluid conduit assembly
EP1705416A1 (fr) * 2005-03-24 2006-09-27 Tiemme Raccorderie S.p.A. Raccord pour installations, par exemple pour une installation thermosanitaire
WO2008009573A1 (fr) * 2006-07-20 2008-01-24 Vetec Gmbh Verbindungstechnolo Manchon et combinaison de manchon avec un outil de moulage par compression

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2506874B2 (de) * 1975-02-18 1978-08-17 Ernst Dr. 6250 Limburg Schnabel Befestigung eines Anschlußstücks aus Metall an einem durch Drahtgeflecht außenbewehrten Kunststoffschlauch

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5014423A (en) * 1989-03-02 1991-05-14 Flow Systems, Inc. Method for forming a sealed coupling using a high pressure hose fitting with an O-ring type seal
US5096231A (en) * 1990-11-28 1992-03-17 S&H Fabricating And Engineering Inc. Flexible fluid conduit assembly
EP1705416A1 (fr) * 2005-03-24 2006-09-27 Tiemme Raccorderie S.p.A. Raccord pour installations, par exemple pour une installation thermosanitaire
WO2008009573A1 (fr) * 2006-07-20 2008-01-24 Vetec Gmbh Verbindungstechnolo Manchon et combinaison de manchon avec un outil de moulage par compression

Also Published As

Publication number Publication date
DE102013020708A1 (de) 2015-06-11
DE112014005616A5 (de) 2016-11-17

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