EP0843782A1 - Fuel line for vehicle fuel delivery means - Google Patents

Fuel line for vehicle fuel delivery means

Info

Publication number
EP0843782A1
EP0843782A1 EP96932432A EP96932432A EP0843782A1 EP 0843782 A1 EP0843782 A1 EP 0843782A1 EP 96932432 A EP96932432 A EP 96932432A EP 96932432 A EP96932432 A EP 96932432A EP 0843782 A1 EP0843782 A1 EP 0843782A1
Authority
EP
European Patent Office
Prior art keywords
tube
fuel
fuel line
fuel delivery
pipe
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
EP96932432A
Other languages
German (de)
French (fr)
Other versions
EP0843782B1 (en
Inventor
Hans-Peter Braun
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0843782A1 publication Critical patent/EP0843782A1/en
Application granted granted Critical
Publication of EP0843782B1 publication Critical patent/EP0843782B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • 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
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/08—Feeding by means of driven pumps electrically driven
    • F02M37/10—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir
    • F02M37/106—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir the pump being installed in a sub-tank
    • 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
    • F02M37/0047—Layout or arrangement of systems for feeding fuel

Definitions

  • the invention is based on a fuel line for fuel delivery devices of motor vehicles according to the preamble of claim 1.
  • Such a fuel line is known from DE 42 24 981 AI.
  • Components of the fuel delivery device are connected to one another or to the internal combustion engine of the motor vehicle through the fuel line.
  • the fuel line can be fastened to the components of the fuel delivery device or the internal combustion engine on a connection piece.
  • Fuel lines can generally be designed as a flexible hose or as a tube. Pipes are less expensive than fuel-resistant hoses, but they have the disadvantage that either expensive connection means are required to attach them to the connecting piece, or their direct attachment and solution to the connecting piece is only possible with special assembly or disassembly devices, so that a Removal of components of the fuel delivery device or the fuel line is not possible in a simple manner.
  • the configuration of the fuel line according to the invention with the features according to claim 1 has the advantage that it is prepared to enable simple removal of components of the fuel delivery device or the fuel line.
  • a new fuel line for example in the form of a flexible hose, can be attached to the new nozzle which can be produced in a simple manner.
  • FIG. 1 shows a detail of a fuel delivery device
  • FIG. 2 shows an enlarged view of a pipe of the fuel delivery device according to a first exemplary embodiment that is arranged on a connecting piece and serves as a fuel line
  • FIG. 3 shows the connecting piece with a separate pipe arranged thereon and a new fuel line attached and a second embodiment.
  • a fuel delivery device for motor vehicles shown in simplified form in FIG. 1, has a fuel delivery unit 10 which delivers fuel from a storage container 12 to the internal combustion engine 14 of the motor vehicle.
  • the fuel delivery unit 10 is connected via a fuel line 16 to the internal combustion engine 14, which is fastened to a connecting piece 20 of the fuel delivery unit 10.
  • the fuel delivery device may also include, for example, a return flow from the internal combustion engine 14 into the storage container 12, through which excess fuel not used by the internal combustion engine is returned to the storage container 12 and which likewise comprises a fuel line 22, which is connected to a connection piece 24 on the internal combustion engine 14 and / or is attached to the storage container 12.
  • the fuel delivery device may also include a flange 26, through which an opening 28 in the storage container 12 can be closed and which has the connection piece 30, on which sections of the fuel lines 16 and / or 22 arranged inside and outside the storage container 12 are fastened.
  • the fuel delivery device can also include other components to which a fuel line is also attached to a connecting piece.
  • Fuel line 16 described, the same for all other fuel lines
  • Fuel delivery device is applicable.
  • Fuel line 16 is designed as a tube and can consist of rigid plastic.
  • the tube 16 can be wave-shaped at least in sections in the form of a so-called
  • Corrugated tube to be formed so that it is in its course can be flexibly adapted to the respective installation conditions.
  • the nozzle 20 has at least one collar 34 on its outer circumference; preferably a plurality of collars 34 offset in the longitudinal direction are provided.
  • the collars 34 are chamfered on their sides facing the free end of the socket 20 in order to enable the tube 16 to be easily pushed on, and are arranged with their opposite sides approximately perpendicular to the longitudinal extension of the socket 20.
  • the nozzle 20 thus has a fir tree-like shape, the tip of which faces the free end of the nozzle 20.
  • the tube 16 can be heated in its end region so that it can be expanded and pushed onto the connector 20 over the collar 34.
  • the tube 16 shrinks again, the collar 34 clawing into it and thus holding the tube 16 on the nozzle 20 so that it can no longer be removed.
  • the tube 16 can also be installed without heating, the end of which is pushed onto the connector 20 with the appropriate application of force. In the maximum pressure range, the plastic material of the tube 16 settles, so that it clings to the fir tree profile of the connector 20 and thus secures the tube 16 against being pulled off.
  • the tube 16 has an outwardly projecting abutment bead 36 on its outer circumference near the connector 20 in a region projecting beyond the connector 20.
  • the abutment bead 36 can advantageously be formed by a shaft section of the tube 16, of which a plurality of strings, as described above, form a section of the tube 16 in the form of a corrugated tube that can be flexibly bent. If removal of the pipe 16 or the fuel delivery unit 10 is required, it can the tube 16 are separated so that, as shown in FIG. 3, a remaining piece 16a with the abutment bead 36 remains on the connector 20.
  • the remaining piece 16a of the tube 16 then forms a new connection piece, on which a new fuel line 23 in the form of a flexible hose can be fastened.
  • the tube 16 is preferably cut off immediately after the contact bead 36, so that the free end of the remaining remnant piece 16a tapers approximately conically, which facilitates the subsequent pushing on of the hose 23. Since the contact bead 36 protrudes beyond the connector 20, it is ensured that the connector 20 is not partially removed when the tube 16 is cut off.
  • the contact bead 36 prevents the hose 23 from slipping, which can optionally be additionally secured on the rest piece 16a arranged on the connector 20 by means of a hose clamp 38.
  • the remaining piece 16a of the pipe 16 on the socket 20 is smoothly formed on the outer circumference outside the contact bead 36, that is to say that the collar 34 does not press through it, so that the connection of the hose 23 to the new socket is durable.
  • FIG. 4 shows the tube 16 according to a second exemplary embodiment, in which the contact bead 36 is arranged on the area of the tube 16 arranged on the connector 20.
  • the pipe 16 can have a marking 40 in its area protruding beyond the connection piece 20, for example in the form of a notch at which the pipe 16 should be cut off without part of the connection piece 20 also being cut off.
  • the abutment bead 36 may end at approximately the same height as the socket 20 or may already end on the socket 20, so that even a smooth section of the remaining piece 16a of the tube 16 remains on the socket 20 after it has been separated.

Landscapes

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

Abstract

The invention relates to a fuel line (16) which connects components of the fuel delivery means to each other or to the internal combustion engine (14). The fuel line (16) is in the form of a pipe (16) and fastened to a connection member (20). The periphery of the pipe (16) has a bearing bulge (36) adjacent the connection member (20). By dividing the pipe (16) the pipe section (16a) which remains on the connection member (20) has the bearing bulge (36) and produces a new connection member to which a new fuel line, for example, a flexible hose, can be fastened. The fuel line or components connected thereto are simple to dismantle due to the preparation of the pipe (16) with the bearing bulge (36).

Description

Kraftstoffleitunσ für Kraftstoffördereinrichtungen von KraftfahrzeugenFuel line for fuel delivery systems of motor vehicles
Stand der TechnikState of the art
Die Erfindung geht aus von einer Kraftstoffleitung für Kraftstoffδrdereinrichtungen von Kraftfahrzeugen nach der Gattung des Anspruchs 1.The invention is based on a fuel line for fuel delivery devices of motor vehicles according to the preamble of claim 1.
Eine solche Kraftstoffleitung ist durch die DE 42 24 981 AI bekannt. Dabei sind Bauteile der Kraftstoffördereinrichtung miteinander bzw. mit der Brennkraftmaschine des Kraftfahrzeugs durch die Kraftstoffleitung verbunden. Die Kraftstoffleitung ist dabei auf den Bauteilen der Kraftstoffördereinrichtung oder der Brennkraftmaschine auf einem Stutzen befestigbar. Kraftstoffleitungen können allgemein als flexibler Schlauch oder als Rohr ausgebildet sein. Rohre sind gegenüber kraftstoffbeständigen Schläuchen kostengünstiger, weisen jedoch den Nachteil auf, daß zu deren Befestigung am Stutzen entweder aufwendige Verbindungsmittel erforderlich sind oder deren direkte Befestigung und Lösung am Stutzen nur mit besonderen Montage- bzw. Demontagevorrichtungen möglich ist, so daß ein Ausbau von Bauteilen der Kraftstoffördereinrichtung oder der Kraftstoffleitung nicht auf einfache Weise möglich ist.Such a fuel line is known from DE 42 24 981 AI. Components of the fuel delivery device are connected to one another or to the internal combustion engine of the motor vehicle through the fuel line. The fuel line can be fastened to the components of the fuel delivery device or the internal combustion engine on a connection piece. Fuel lines can generally be designed as a flexible hose or as a tube. Pipes are less expensive than fuel-resistant hoses, but they have the disadvantage that either expensive connection means are required to attach them to the connecting piece, or their direct attachment and solution to the connecting piece is only possible with special assembly or disassembly devices, so that a Removal of components of the fuel delivery device or the fuel line is not possible in a simple manner.
Vorteile der ErfindungAdvantages of the invention
Die erfindungsgemäße Ausbildung der Kraftstoffleitung mit den Merkmalen gemäß Anspruch 1 hat demgegenüber den Vorteil, daß diese zur Ermöglichung eines einfachen Ausbaus von Bauteilen der Kraftstoffördereinrichtung oder der Kraftstoffleitung vorbereitet ist. Auf dem auf einfache Weise erzeugbaren neuen Stutzen ist dabei eine neue Kraftstoffleitung, beispielsweise in Form eines flexiblen Schlauchs, befestigbar.The configuration of the fuel line according to the invention with the features according to claim 1 has the advantage that it is prepared to enable simple removal of components of the fuel delivery device or the fuel line. In this case, a new fuel line, for example in the form of a flexible hose, can be attached to the new nozzle which can be produced in a simple manner.
In den abhängigen Ansprüchen sind vorteilhafte Ausgestaltungen und Weiterbildungen der erfindungsgemäßen Kraftstoffleitung angegeben. Durch die Ausbildung gemäß Anspruch 2 ist der Anlagewulst des Rohrs auf einfache Weise gebildet.Advantageous refinements and developments of the fuel line according to the invention are specified in the dependent claims. Due to the design according to claim 2, the contact bead of the tube is formed in a simple manner.
Zeichnungdrawing
Zwei Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen Figur l ausschnittsweise eine Kraftstoffördereinrichtung, Figur 2 in vergrößerter Darstellung ein auf einem Stutzen angeordnetes, als Kraftstoffleitung dienendes Rohr der Kraftstoffördereinrichtung gemäß einem ersten Ausführungbeispiel, Figur 3 den Stutzen mit auf diesem angeordnetem abgetrenntem Rohr und befestigter neuer Kraftstoffleitung und Figur 4 das Rohr gemäß einem zweiten Ausführungsbeispiel.Two embodiments of the invention are shown in the drawing and explained in more detail in the following description. FIG. 1 shows a detail of a fuel delivery device, FIG. 2 shows an enlarged view of a pipe of the fuel delivery device according to a first exemplary embodiment that is arranged on a connecting piece and serves as a fuel line, FIG. 3 shows the connecting piece with a separate pipe arranged thereon and a new fuel line attached and a second embodiment.
Beschreibung der Ausführungsbeispiele Eine in Figur 1 vereinfacht dargestellte Kraftstoffördereinrichtung für Kraftfahrzeuge weist ein Kraftstoffδrderaggregat 10 auf, das Kraftstoff aus einem Vorratsbehalter 12 zur Brennkraftmaschine 14 des Kraftfahrzeugs fördert. Das Kraftstofförderaggregat 10 ist über eine Kraftstoffleitung 16 mit der Brennkraftmaschine 14 verbunden, die an einem Stutzen 20 des Kraftstofförderaggregats 10 befestigt ist. Zur Kraftstoffördereinrichtung kann außerdem beispielweise auch ein Rücklauf von der Brennkraftmaschine 14 in den Vorratsbehalter 12 gehören, durch den überschüssiger, von der Brennkraftmaschine nicht verbrauchter Kraftstoff in den Vorratsbehalter 12 zurückgeführt wird und der ebenfalls eine Kraftstoffleitung 22 umfaßt, die an einem Stutzen 24 an der Brennkraftmaschine 14 und/oder am Vorratsbehalter 12 befestigt ist. Zur Kraftstoffördereinrichtung kann außerdem ein Flansch 26 gehören, durch den eine Öffnung 28 im Vorratsbehalter 12 verschließbar ist und der Stutzen 30 aufweist, auf denen innerhalb und außerhalb des Vorratsbehälters 12 angeordnete Abschnitte der Kraftstoffleitungen 16 und/oder 22 befestigt sind. Zur Kraftstoffördereinrichtung können außerdem weitere Bauteile gehören, an denen ebenfalls an einem Stutzen eine Kraftstoffleitung befestigt ist.Description of the embodiments A fuel delivery device for motor vehicles, shown in simplified form in FIG. 1, has a fuel delivery unit 10 which delivers fuel from a storage container 12 to the internal combustion engine 14 of the motor vehicle. The fuel delivery unit 10 is connected via a fuel line 16 to the internal combustion engine 14, which is fastened to a connecting piece 20 of the fuel delivery unit 10. The fuel delivery device may also include, for example, a return flow from the internal combustion engine 14 into the storage container 12, through which excess fuel not used by the internal combustion engine is returned to the storage container 12 and which likewise comprises a fuel line 22, which is connected to a connection piece 24 on the internal combustion engine 14 and / or is attached to the storage container 12. The fuel delivery device may also include a flange 26, through which an opening 28 in the storage container 12 can be closed and which has the connection piece 30, on which sections of the fuel lines 16 and / or 22 arranged inside and outside the storage container 12 are fastened. The fuel delivery device can also include other components to which a fuel line is also attached to a connecting piece.
Nachfolgend wird beispielhaft die Ausbildung der am StutzenThe following is an example of the training of the nozzle
20 des Kraftstofförderaggregats 10 befestigten20 attached to the fuel delivery unit 10
Kraftstoffleitung 16 beschrieben, die in gleicher Weise für alle weiteren Kraftstoffleitungen derFuel line 16 described, the same for all other fuel lines
Kraftstoffördereinrichtung anwendbar ist. DieFuel delivery device is applicable. The
Kraftstoffleitung 16 ist als Rohr ausgebildet und kann aus steifem Kunststoff bestehen. Das Rohr 16 kann zumindest abschnittsweise wellenförmig in Form eines sogenanntenFuel line 16 is designed as a tube and can consist of rigid plastic. The tube 16 can be wave-shaped at least in sections in the form of a so-called
Wellrohrs ausgebildet sein, so daß es in seinem Verlauf flexibel an die jeweiligen Einbauverhältnisse angepaßt werden kann. Der Stutzen 20 weist an seinem Außenumfang wenigstens einen Kragen 34 auf; vorzugsweise sind mehrere in Längsrichtung zueinander vesetzte Kragen 34 vorgesehen. Die Kragen 34 sind an ihren zum freien Ende des Stutzens 20 weisenden Seiten angeschrägt, um ein leichtes Aufschieben des Rohrs 16 zu ermöglichen, und mit ihren gegenüberliegenden Seiten etwa senkrecht zur Längserstreckung des Stutzens 20 angeordnet. Der Stutzen 20 weist somit eine tannenbaumähnliche Form auf, dessen Spitze zum freien Ende des Stutzens 20 weist. Zu seiner Befestigung am Stutzen 20 kann das Rohr 16 in seinem Endbereich erwärmt werden, so daß es sich erweitert und auf den Stutzen 20 über die Kragen 34 geschoben werden kann. Bei der Abkühlung schrumpft das Rohr 16 wieder, wobei die Kragen 34 sich in dieses einkrallen und somit das Rohr 16 auf dem Stutzen 20 halten, so daß dieses nicht mehr abgezogen werden kann. Alternativ kann das Rohr 16 auch ohne Erwärmung montiert werden, wobei dessen Ende unter entsprechender Kraftaufwendung auf den Stutzen 20 aufgeschoben wird. Im maximalen Pressungsbereich setzt sich das Kunststoffmaterial des Rohrs 16, so daß sich dieses auf dem Tannenbaumprofil des Stutzens 20 verkrallt und somit das Rohr 16 gegen Abziehen sichert.Corrugated tube to be formed so that it is in its course can be flexibly adapted to the respective installation conditions. The nozzle 20 has at least one collar 34 on its outer circumference; preferably a plurality of collars 34 offset in the longitudinal direction are provided. The collars 34 are chamfered on their sides facing the free end of the socket 20 in order to enable the tube 16 to be easily pushed on, and are arranged with their opposite sides approximately perpendicular to the longitudinal extension of the socket 20. The nozzle 20 thus has a fir tree-like shape, the tip of which faces the free end of the nozzle 20. To attach it to the connector 20, the tube 16 can be heated in its end region so that it can be expanded and pushed onto the connector 20 over the collar 34. When cooling, the tube 16 shrinks again, the collar 34 clawing into it and thus holding the tube 16 on the nozzle 20 so that it can no longer be removed. Alternatively, the tube 16 can also be installed without heating, the end of which is pushed onto the connector 20 with the appropriate application of force. In the maximum pressure range, the plastic material of the tube 16 settles, so that it clings to the fir tree profile of the connector 20 and thus secures the tube 16 against being pulled off.
Das Rohr 16 weiεt bei einem in den Figuren 2 und 3 dargestellten ersten Ausführungsbeispiel nahe dem Stutzen 20 in einem über den Stutzen 20 hinausragenden Bereich an seinem Außenumfang einen nach außen ragenden Anlagewulst 36 auf. Der Anlagewulεt 36 kann vorteilhafterweise durch einen Wellenabschnitt des Rohrs 16 gebildet sein, von denen mehrere aneinandergereiht wie vorstehend beschrieben einen Abschnitt des Rohrs 16 in Form eines Wellrohrs bilden, das flexibel verbiegbar ist. Wenn ein Ausbau des Rohrs 16 oder des Kraftstofförderaggregats 10 erforderlich ist, so kann das Rohr 16 so abgetrennt werden, daß von diesem wie in Figur 3 dargestellt ein Reststück 16a mit dem Anlagewulst 36 auf dem Stutzen 20 verbleibt. Das Reststück 16a des Rohrs 16 bildet dann einen neuen Stutzen, auf dem eine neue Kraftstoffleitung 23 in Form eines flexiblen Schlauchs befestigbar ist. Vorzugsweise wird das Rohr 16 direkt nach dem Anlagewulst 36 abgetrennt, so daß das freie Ende des verbleibenden Reststücks 16a sich etwa konisch verjüngt, wodurch das nachfolgende Aufschieben des Schlauchs 23 erleichtert ist. Da der Anlagewulst 36 über den Stutzen 20 hinausragt ist sichergestellt, daß beim Abtrennen des Rohrs 16 der Stutzen 20 nicht teilweise mit abgetrennt wird. Der Anlagewulst 36 verhindert ein Abrutschen des Schlauchs 23, der gegebenenfalls zusätzlich auf dem auf dem Stutzen 20 angeordneten Reststück 16a mittels einer Schlauchklemme 38 gesichert werden kann. Das auf dem Stutzen 20 verbleibende Reststück 16a des Rohrs 16 ist außerhalb des Anlagewulstes 36 an seinem Außenumfang glatt ausgebildet, das heißt, daß die Kragen 34 nicht durch dieses hindurchdrücken, so daß die Verbindung des Schlauchs 23 mit dem neuen Stutzen dauerhaltbar ist.In a first exemplary embodiment shown in FIGS. 2 and 3, the tube 16 has an outwardly projecting abutment bead 36 on its outer circumference near the connector 20 in a region projecting beyond the connector 20. The abutment bead 36 can advantageously be formed by a shaft section of the tube 16, of which a plurality of strings, as described above, form a section of the tube 16 in the form of a corrugated tube that can be flexibly bent. If removal of the pipe 16 or the fuel delivery unit 10 is required, it can the tube 16 are separated so that, as shown in FIG. 3, a remaining piece 16a with the abutment bead 36 remains on the connector 20. The remaining piece 16a of the tube 16 then forms a new connection piece, on which a new fuel line 23 in the form of a flexible hose can be fastened. The tube 16 is preferably cut off immediately after the contact bead 36, so that the free end of the remaining remnant piece 16a tapers approximately conically, which facilitates the subsequent pushing on of the hose 23. Since the contact bead 36 protrudes beyond the connector 20, it is ensured that the connector 20 is not partially removed when the tube 16 is cut off. The contact bead 36 prevents the hose 23 from slipping, which can optionally be additionally secured on the rest piece 16a arranged on the connector 20 by means of a hose clamp 38. The remaining piece 16a of the pipe 16 on the socket 20 is smoothly formed on the outer circumference outside the contact bead 36, that is to say that the collar 34 does not press through it, so that the connection of the hose 23 to the new socket is durable.
In Figur 4 ist das Rohr 16 gemäß einem zweiten Ausführungsbeispiel dargestellt, bei dem der Anlagewulst 36 auf dem auf dem Stutzen 20 angeordneten Bereich des Rohrs 16 angeordnet ist. Das Rohr 16 kann dabei in seinem über den Stutzen 20 hinausragenden Bereich eine Markierung 40 aufweisen, beispielsweise in Form einer Einkerbung, an der das Abtrennen des Rohrs 16 erfolgen sollte, ohne daß ein Teil des Stutzens 20 mit abgetrennt wird. Der Anlagewulst 36 kann dabei etwa auf derselben Höhe enden wie der Stutzen 20 oder bereits auf dem Stutzen 20 enden, so daß auch ein glatter Abschnitt des Reststücks 16a des Rohrs 16 nach dessen Abtrennen auf dem Stutzen 20 verbleibt. FIG. 4 shows the tube 16 according to a second exemplary embodiment, in which the contact bead 36 is arranged on the area of the tube 16 arranged on the connector 20. The pipe 16 can have a marking 40 in its area protruding beyond the connection piece 20, for example in the form of a notch at which the pipe 16 should be cut off without part of the connection piece 20 also being cut off. The abutment bead 36 may end at approximately the same height as the socket 20 or may already end on the socket 20, so that even a smooth section of the remaining piece 16a of the tube 16 remains on the socket 20 after it has been separated.

Claims

Ansprüche Expectations
1. Kraftstoffleitung für Kraftstoffördereinrichtungen von Kraftfahrzeugen, durch die Bauteile (10) der1. Fuel line for fuel delivery devices of motor vehicles, through the components (10)
Kraftstoffördereinrichtung miteinander oder mit der Brennkraftmaschine (14) des Kraftfahrzeugs verbindbar sind und die auf einem Stutzen (20) eines der Bauteile (10) der Kraftstoffördereinrichtung oder der Brennkraftmaschine (14) befestigbar ist, dadurch gekennzeichnet, daß die Kraftstoffleitung (16) als Rohr ausgebildet ist und daß das Rohr (16) nahe dem Stutzen (20) an seinem Außenumfang einen Anlagewulst (36) aufweist, so daß durch Abtrennen des Rohrs (16) durch dessen auf dem Stutzen (20) verbleibendes, den Anlagewulst (36) aufweisendes Reststück (16a) eine neuer Stutzen erzeugbar ist.The fuel delivery device can be connected to one another or to the internal combustion engine (14) of the motor vehicle and can be attached to a connection piece (20) of one of the components (10) of the fuel delivery device or the internal combustion engine (14), characterized in that the fuel line (16) is designed as a tube and that the tube (16) near the nozzle (20) has an abutment bead (36) on its outer circumference, so that by separating the tube (16) through its remaining piece on the nozzle (20) having the abutment bead (36) (16a) a new nozzle can be generated.
2. Kraftstoffleitung nach Anspruch 1, dadurch gekennzeichnet, daß das Rohr (16) zumindest abschnittsweise als Wellrohr ausgebildet ist und daß der Anlagewulst (36) durch einen Wellenabschnitt des Rohrs (16) gebildet ist.2. Fuel line according to claim 1, characterized in that the tube (16) is formed at least in sections as a corrugated tube and that the abutment bead (36) is formed by a shaft portion of the tube (16).
3. Kraftstoffleitung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Anlagewulst (36) an einem über den Stutzen (20) hinausragenden Bereich des Rohrs (16) angeordnet ist. 3. Fuel line according to claim 1 or 2, characterized in that the abutment bead (36) is arranged on a region of the tube (16) which projects beyond the connecting piece (20).
4. Kraftstoffleitung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Anlagewulst (36) an einem auf dem Stutzen (20) angeordneten Bereich des Rohrs (16) angeordnet ist. 4. Fuel line according to claim 1 or 2, characterized in that the bearing bead (36) is arranged on an area of the pipe (16) arranged on the connecting piece (20).
EP96932432A 1995-12-21 1996-08-02 Fuel delivery means for vehicles Expired - Lifetime EP0843782B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19547876A DE19547876A1 (en) 1995-12-21 1995-12-21 Fuel line for fuel delivery devices of motor vehicles
DE19547876 1995-12-21
PCT/DE1996/001447 WO1997023723A1 (en) 1995-12-21 1996-08-02 Fuel line for vehicle fuel delivery means

Publications (2)

Publication Number Publication Date
EP0843782A1 true EP0843782A1 (en) 1998-05-27
EP0843782B1 EP0843782B1 (en) 2000-03-01

Family

ID=7780839

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96932432A Expired - Lifetime EP0843782B1 (en) 1995-12-21 1996-08-02 Fuel delivery means for vehicles

Country Status (7)

Country Link
US (1) US5884669A (en)
EP (1) EP0843782B1 (en)
JP (1) JPH11501103A (en)
KR (1) KR100280065B1 (en)
CN (1) CN1072769C (en)
DE (2) DE19547876A1 (en)
WO (1) WO1997023723A1 (en)

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DE19637276A1 (en) * 1996-09-13 1998-03-19 Bosch Gmbh Robert Fuel feed device for motor vehicles
DE19907736A1 (en) * 1999-02-23 2000-08-24 Volkswagen Ag Sealed joint in a vehicle motor fuel line has a shrunk hose section over the joint which is heat-shrunk in place for a durable and leak-free joint seal
FI112276B (en) * 1999-04-01 2003-11-14 Uponor Innovation Ab A sleeve is provided with a plastic tube and a method for forming a sleeve in a plastic tube
DE19943260A1 (en) * 1999-09-10 2001-03-15 Mannesmann Vdo Ag Fuel tank
DE10117969A1 (en) * 2001-01-19 2002-08-08 Siemens Ag connection
JP4298357B2 (en) * 2003-04-08 2009-07-15 三桜工業株式会社 Pipe connection structure
EP2027407B1 (en) * 2006-06-14 2020-06-10 Carl Freudenberg KG Tube seal components
US8070187B2 (en) 2006-08-21 2011-12-06 Continental Automotive Systems Us, Inc. Interface hose seal for low permeation flange of a fuel supply unit
US20090267307A1 (en) * 2008-04-28 2009-10-29 Freudenberg-Nok General Partnership High Pressure Tube Seal
JP5132423B2 (en) * 2008-05-22 2013-01-30 昭男 荒井 Through-duct member and hollow wall duct structure using the member
DE102008061575B4 (en) * 2008-12-11 2010-11-25 Continental Automotive Gmbh Corrugated pipe of a fuel line
DE102013017499B4 (en) * 2013-10-17 2018-03-29 Kaco Gmbh + Co. Kg Combustion chamber seal for internal combustion engines of vehicles, preferably of motor vehicles
US10788150B2 (en) 2018-03-22 2020-09-29 Freudenberg-Nok General Partnership Tube seal
JP6886483B2 (en) * 2019-03-15 2021-06-16 住友理工株式会社 connector
DE202019104494U1 (en) * 2019-08-15 2020-11-25 Rehau Ag + Co Connecting element and this comprehensive pipe connection

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Also Published As

Publication number Publication date
WO1997023723A1 (en) 1997-07-03
EP0843782B1 (en) 2000-03-01
CN1173909A (en) 1998-02-18
US5884669A (en) 1999-03-23
KR19980702339A (en) 1998-07-15
DE19547876A1 (en) 1997-06-26
CN1072769C (en) 2001-10-10
KR100280065B1 (en) 2001-10-27
DE59604550D1 (en) 2000-04-06
JPH11501103A (en) 1999-01-26

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