EP0817913A1 - Fastening device for attaching a fuel line to a connecting piece - Google Patents

Fastening device for attaching a fuel line to a connecting piece

Info

Publication number
EP0817913A1
EP0817913A1 EP96943870A EP96943870A EP0817913A1 EP 0817913 A1 EP0817913 A1 EP 0817913A1 EP 96943870 A EP96943870 A EP 96943870A EP 96943870 A EP96943870 A EP 96943870A EP 0817913 A1 EP0817913 A1 EP 0817913A1
Authority
EP
European Patent Office
Prior art keywords
fuel line
connecting piece
socket
bushing
longitudinal axis
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.)
Withdrawn
Application number
EP96943870A
Other languages
German (de)
French (fr)
Inventor
Rolf Fischerkeller
Wolfgang WÜRL
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 EP0817913A1 publication Critical patent/EP0817913A1/en
Withdrawn legal-status Critical Current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
    • 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
    • F16L33/02—Hose-clips
    • F16L33/03—Self-locking elastic clips
    • 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

Definitions

  • the invention is based on a fastening arrangement of a fuel line on a nozzle according to the preamble of claim 1.
  • the fuel line is attached to a connection piece of a component of a fuel delivery device.
  • Fuel lines can be designed as pipes made of plastic or as flexible hoses, pipes being less expensive than hoses.
  • the connecting piece When using pipes, the connecting piece usually has a plurality of collars spaced from one another in the direction of its longitudinal axis and projecting from the outer circumference thereof and is designed in the manner of a fir tree profile.
  • the pipe can be fastened on the connecting piece by pushing it in the direction of its longitudinal axis, the pulling of the pipe being prevented by the claws in the pipe and at the same time achieving a seal shall be.
  • the socket can be opened even before the
  • Fuel line can be arranged on this and expands elastically when pushed on, so that at the
  • the socket is fixed in a simple manner in the direction of the longitudinal axis of the nozzle.
  • FIG. 1 shows a nozzle and a fuel line to be fastened thereon
  • FIG Fuel line in a cross section along line II-II in Figure 1 and Figure 3, the nozzle with the fuel line arranged thereon.
  • FIGS. 1-10 A fastening arrangement of a fuel line on a nozzle shown in FIGS.
  • Fuel delivery device can be provided, through which fuel is delivered from a storage tank to the internal combustion engine of a motor vehicle.
  • the nozzle 10 can be arranged, for example, on a delivery unit 11 (not shown in more detail) or on any other components of the fuel delivery device.
  • the connector 10 can consist of metal or preferably of fuel-resistant plastic.
  • the connecting piece 10 has a plurality of collars 14 spaced apart from one another in the direction of its longitudinal axis 12 and projecting outward from its outer circumference.
  • the collars 14 each have a bevel 16 towards the free end of the connector 10 and a shoulder 18 arranged approximately perpendicular to the longitudinal axis 12 on their opposite sides.
  • the connector 10 thus has a so-called fir tree profile on its outer circumference. It can be provided that the collar 14a arranged closest to the free end of the connection piece 10 projects less from the outer circumference of the connection piece 10.
  • the collar 14a is of less sharp-edged design, that is to say its shoulder 18a is beveled away from the free end of the connector 10 and / or the transition between the bevel 16a and the shoulder 18a is rounded.
  • the nozzle 10 is chamfered at its free end to its longitudinal axis 12.
  • the fuel line 20 is designed as a rigid tube made of fuel-resistant plastic.
  • the pipe 20 can be designed in sections as a so-called corrugated pipe, in order to be able to adapt it flexibly in its course to the respective installation conditions.
  • a bushing 22, which can be elastically expanded, is arranged on the end region of the tube 20 that can be pushed onto the socket 10.
  • the elastic expandability of the bushing 22 can be achieved, for example, by means of a longitudinal slot 24 or by using a sufficiently elastically deformable material for the bushing 22, which can then be designed as a completely closed ring.
  • the bushing 22 is thin-walled, that is to say that its thickness in the radial direction to the longitudinal axis 12 is smaller in relation to its width in the direction of the longitudinal axis 12.
  • the socket 22 can consist of metal or plastic, in particular the socket 10 and the socket 22 can be made of the same plastic.
  • the bushing 22 is fixed on the tube 20 in the direction of the longitudinal axis 12, that is to say cannot be displaced thereon.
  • the tube 20 can have two elevations 26 which protrude outward from its outer circumference and are spaced apart in the direction of the longitudinal axis 12 approximately according to the width of the bushing 22.
  • the bushing 22 can be slid from the end of the tube 22 over one of the elevations 26 with an elastic widening and is then arranged between the elevations 26 and fixed in the direction of the longitudinal axis 12.
  • the tube 20 When the tube 20 is fastened on the nozzle 10, it is pushed onto the nozzle 10 in the direction of the longitudinal axis 12.
  • the tube 20 is expanded and the collar 14 claw under plastic deformation of the tube 20 in its inner circumference.
  • the socket 22 is at Sliding on the nozzle 10 extends elastically and is arranged in the end position of the tube 20 in the region of the collar 14a.
  • the prestressed bushing 22 exerts a pressure on the tube 20 in the region of the collar 14a and thus achieves a secure seal, even if the tube 20 widens after being heated up considerably. If the connector 10 and the bushing 22 are made of the same plastic, they expand approximately the same amount when heated, so that essentially the same pressure remains as in the unheated state.
  • the dimensions of the socket 22 are such that the tolerances and out-of-roundness of the connector 10 and the tube 20 are compensated for.
  • the pull-off strength of the tube 20 is achieved by means of the further collars 14 clawing in the tube 20.

Landscapes

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

Abstract

The fastening device proposed is designed for use with a fuel line (20) in the form of plastic tubing and a connecting piece (10) with, spaced along its longitudinal axis (12), several shoulders (14) which stand out from the outside surface of the connecting piece. Fitted round the end of the fuel line (20), which is pushed on to the connecting piece (10), is an elastically expandable sleeve (22) which is prevented from moving in the longitudinal direction (12) by two ridges (26) extending out from the fuel line (20). The sleeve (22) ensures a reliable seal between the fuel line (20) and the connecting piece (10), and the fuel line (20) can be attached in place by simply pushing it on to the connecting piece (10).

Description

Befestigungsanordnung einer Kraftstoffleitung auf einem StutzenFastening arrangement of a fuel line on a nozzle
Stand der TechnikState of the art
Die Erfindung geht aus von einer Befestigungsanordnung einer Kraftstoffleitung auf einem Stutzen nach der Gattung des Anspruchs 1.The invention is based on a fastening arrangement of a fuel line on a nozzle according to the preamble of claim 1.
Eine solche Befestigungsanordnung ist durch die DE 42 24 981 AI bekannt. Dabei ist die Kraftstoffleitung auf einem Stutzen eines Bauteils einer Kraftstoffördereinrichtung befestigt. Kraftstoffleitungen können als aus Kunststoff bestehende Rohre ausgebildet sein oder als flexible Schläuche, wobei Rohre gegenüber Schläuchen kostengünstiger sind. Bei der Verwendung von Rohren weist der Stutzen üblicherweise mehrere in Richtung seiner Längsachse zueinander beabstandete, aus dessen Außenumfang hervorstehende Kragen auf und ist tannenbaumprofilartig ausgebildet. Das Rohr ist durch Aufschieben in Richtung von dessen Längsachse auf dem Stutzen befestigbar, wobei durch die sich im Rohr verkrallenden Kragen ein Abziehen des Rohrs verhindert werden soll und zugleich eine Abdichtung erreicht werden soll. Es hat sich gezeigt, daß bei dieser Befestigungsanordnung nach starker Erwärmung des Rohrs infolge einer bleibenden Aufweitung des Rohrs keine ausreichende Dichtigkeit mehr gewährleistet ist. Zusätzlich kann das Rohr auf dem Stutzen mittels einer Rohrschelle gehalten werden, die jedoch aufwendig konstruiert sein muß, um die Pressung gleichmäßig über den Umfang des Rohrs zu verteilen und deren Montage zeitaufwendig ist.Such a mounting arrangement is known from DE 42 24 981 AI. The fuel line is attached to a connection piece of a component of a fuel delivery device. Fuel lines can be designed as pipes made of plastic or as flexible hoses, pipes being less expensive than hoses. When using pipes, the connecting piece usually has a plurality of collars spaced from one another in the direction of its longitudinal axis and projecting from the outer circumference thereof and is designed in the manner of a fir tree profile. The pipe can be fastened on the connecting piece by pushing it in the direction of its longitudinal axis, the pulling of the pipe being prevented by the claws in the pipe and at the same time achieving a seal shall be. It has been shown that with this fastening arrangement, after the tube has been heated up to a great extent as a result of a permanent expansion of the tube, it is no longer possible to ensure adequate tightness. In addition, the pipe can be held on the connecting piece by means of a pipe clamp, which, however, has to be of complex construction in order to distribute the pressure evenly over the circumference of the pipe and its assembly is time-consuming.
Vorteile der ErfindungAdvantages of the invention
Die erfindungsgemäße Befestigungsanordnung einerThe mounting arrangement of the invention
Kraftstoffleitung auf einem Stutzen hat demgegenüber denIn contrast, fuel line on a nozzle has the
Vorteil, daß die Kraftstoffleitung weiterhin auf einfacheAdvantage that the fuel line continues to be simple
Weise durch Aufschieben auf dem Stutzen befestigbar ist und durch die Buchse die Dichtigkeit gewährleistet ist. DieCan be fastened by pushing it onto the socket and tightness is ensured through the bushing. The
Buchse kann dabei schon vor dem Aufschieben derIn this case, the socket can be opened even before the
Kraftstoffleitung auf dieser angeordnet sein und weitet sich beim Aufschieben elastisch auf, so daß sich bei auf demFuel line can be arranged on this and expands elastically when pushed on, so that at the
Stutzen angeordneter Kraftstoffleitung eine zusätzlicheFuel line arranged an additional
Pressung durch die Buchse ergibt.Pressing through the bushing results.
Vorteilhafte Ausgestaltungen und Weiterbildungen der erfindungsgemäßen Befestigungsanordnung sind in den abhängigen Ansprüchen angegeben. Durch die Weiterbildung der Kraftstoffleitung gemäß Anspruch 2 ist die Buchse auf einfache Weise in Richtung der Längsachse des Stutzens fixiert .Advantageous refinements and developments of the fastening arrangement according to the invention are specified in the dependent claims. Through the development of the fuel line according to claim 2, the socket is fixed in a simple manner in the direction of the longitudinal axis of the nozzle.
Zeichnungdrawing
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen Figur 1 einen Stutzen und eine auf diesem zu befestigende Kraftstoffleitung, Figur 2 die Kraftstoffleitung in einem Querschnitt entlang Linie II-II in Figur 1 und Figur 3 den Stutzen mit auf diesem angeordneter Kraftstoffleitung.An embodiment of the invention is shown in the drawing and explained in more detail in the following description. FIG. 1 shows a nozzle and a fuel line to be fastened thereon, FIG Fuel line in a cross section along line II-II in Figure 1 and Figure 3, the nozzle with the fuel line arranged thereon.
Beschreibung des AusführungsbeispielsDescription of the embodiment
Eine in den Figuren 1 bis 3 dargestellte Befestigungsanordnung einer Kraftstoffleitung auf einem Stutzen kann beispielsweise bei einerA fastening arrangement of a fuel line on a nozzle shown in FIGS
Kraftstoffördereinrichtung vorgesehen sein, durch die Kraftstoff aus einem Vorratstank zur Brennkraftmaschine eines Kraftfahrzeugs gefördert wird. Der Stutzen 10 kann beispielsweise an einem nicht näher dargstellten Förderaggregat 11 angeordnet sein oder an beliebigen anderen Bauteilen der Kraftstoffördereinrichtung. Der Stutzen 10 kann aus Metall oder vorzugsweise aus kraftstoffbeständigem Kunststoff bestehen.Fuel delivery device can be provided, through which fuel is delivered from a storage tank to the internal combustion engine of a motor vehicle. The nozzle 10 can be arranged, for example, on a delivery unit 11 (not shown in more detail) or on any other components of the fuel delivery device. The connector 10 can consist of metal or preferably of fuel-resistant plastic.
Der Stutzen 10 weist mehrere, in Richtung seiner Längsachse 12 zueinander beabstandete, aus dessen Außenumfang nach außen abstehende Kragen 14 auf. Die Kragen 14 weisen zum freien Ende des Stutzens 10 hin jeweils eine Anschrägung 16 und an ihren entgegengesetzten Seiten jeweils eine etwa senkrecht zur Längsachse 12 angeordnete Schulter 18. Der Stutzen 10 weist somit an seinem Außenumfang ein sogenanntes Tannenbaumprofil auf. Es kann vorgesehen sein, daß der dem freien Ende des Stutzens 10 am nächsten angeordnete Kragen 14a weniger weit aus dem Außenumfang des Stutzens 10 hervorsteht. Es kann alternativ oder zusätzlich auch vorgesehen werden, daß der Kragen 14a weniger scharfkantig ausgebildet ist, das heißt dessen Schulter 18a vom freien Ende des Stutzens 10 weg angeschrägt ist und/oder der Übergang zwischen der Anschrägung 16a und der Schulter 18a gerundet ist. Der Stutzen 10 ist an seinem freien Ende zu seiner Längsachse 12 hin angeschrägt. Die Kraftstoffleitung 20 ist als ein aus kraftstoffbeständigem Kunststoff bestehendes steifes Rohr ausgeführt. Das Rohr 20 kann abschnittsweise als sogenanntes Wellrohr ausgebildet sein, um dieses flexibel in seinem Verlauf an die jweiligen Einbaubedingungen anpassen zu können. Auf dem auf den Stutzen 10 aufschiebbaren Endbereich des Rohrs 20 ist eine Buchse 22 angeordnet, die elastisch aufweitbar ist. Die elastische Aufweitbarkeit der Buchse 22 kann beispielsweise durch einen Längsschlitz 24 erreicht werden oder durch Verwendung eines ausreichend elastisch verformbaren Materials für die Buchse 22, die dann als vollständig geschlossener Ring ausgebildet sein kann. Die Buchse 22 ist dünnwandig ausgeführt, das heißt, daß deren Dicke in radialer Richtung zur Längsachse 12 im Verhältnis zu deren Breite in Richtung der Längsachse 12 geringer ist. Die Buchse 22 kann aus Metall oder aus Kunststoff bestehen, wobei insbesondere der Stutzen 10 und die Buchse 22 aus demselben Kunststoff hergestellt sein können. Die Buchse 22 ist auf dem Rohr 20 in Richtung der Längsachse 12 fixiert, das heißt nicht auf diesem verschiebbar. Hierzu kann das Rohr 20 zwei aus dessen Außenumfang nach außen abstehende, in Richtung der Längsachse 12 etwa entsprechend der Breite der Buchse 22 zueinander beabstandete Erhebungen 26 aufweisen. Die Buchse 22 kann dabei unter elatischer Aufweitung vom Ende des Rohrs 22 her über eine der Erhebungen 26 geschoben werden und ist dann zwischen den Erhebungen 26 angeordnet und in Richtung der Längsachse 12 fixiert .The connecting piece 10 has a plurality of collars 14 spaced apart from one another in the direction of its longitudinal axis 12 and projecting outward from its outer circumference. The collars 14 each have a bevel 16 towards the free end of the connector 10 and a shoulder 18 arranged approximately perpendicular to the longitudinal axis 12 on their opposite sides. The connector 10 thus has a so-called fir tree profile on its outer circumference. It can be provided that the collar 14a arranged closest to the free end of the connection piece 10 projects less from the outer circumference of the connection piece 10. Alternatively or additionally, it can also be provided that the collar 14a is of less sharp-edged design, that is to say its shoulder 18a is beveled away from the free end of the connector 10 and / or the transition between the bevel 16a and the shoulder 18a is rounded. The nozzle 10 is chamfered at its free end to its longitudinal axis 12. The fuel line 20 is designed as a rigid tube made of fuel-resistant plastic. The pipe 20 can be designed in sections as a so-called corrugated pipe, in order to be able to adapt it flexibly in its course to the respective installation conditions. A bushing 22, which can be elastically expanded, is arranged on the end region of the tube 20 that can be pushed onto the socket 10. The elastic expandability of the bushing 22 can be achieved, for example, by means of a longitudinal slot 24 or by using a sufficiently elastically deformable material for the bushing 22, which can then be designed as a completely closed ring. The bushing 22 is thin-walled, that is to say that its thickness in the radial direction to the longitudinal axis 12 is smaller in relation to its width in the direction of the longitudinal axis 12. The socket 22 can consist of metal or plastic, in particular the socket 10 and the socket 22 can be made of the same plastic. The bushing 22 is fixed on the tube 20 in the direction of the longitudinal axis 12, that is to say cannot be displaced thereon. For this purpose, the tube 20 can have two elevations 26 which protrude outward from its outer circumference and are spaced apart in the direction of the longitudinal axis 12 approximately according to the width of the bushing 22. The bushing 22 can be slid from the end of the tube 22 over one of the elevations 26 with an elastic widening and is then arranged between the elevations 26 and fixed in the direction of the longitudinal axis 12.
Bei der Befestigung des Rohrs 20 auf dem Stutzen 10 wird dieses in Richtung der Längsachse 12 auf den Stutzen 10 aufgeschoben. Das Rohr 20 wird dabei erweitert und die Kragen 14 verkrallen sich unter plastischer Verformung des Rohrs 20 in dessen Innenumfang. Die Buchse 22 wird beim Aufschieben auf den Stutzen 10 elastisch erweitert und ist in der Endlage des Rohrs 20 im Bereich des Kragens 14a angeordnet. Durch die vorgespannte Buchse 22 wird auf das Rohr 20 im Bereich des Kragens 14a eine Pressung ausgeübt und somit eine sichere Abdichtung erreicht, auch wenn das Rohr 20 sich nach starker Erwärmung erweitert. Wenn der Stutzen 10 und die Buchse 22 aus demselben Kunststoff hergestellt sind, dehnen diese sich bei Erwärmung etwa gleich stark aus, so daß im wesentlichen dieselbe Pressung bestehen bliebt wie im nicht erwärmten Zustand. Die Buchse 22 ist in ihren Abmessungen so ausgelegt, daß die Toleranzen und Unrundheiten des Stutzens 10 und des Rohrs 20 ausgeglichen werden. Dadurch, daß die Buchse 22 zwischen den Erhebungen 26 in Richtung der Längsachse 12 fixiert ist, ist sichergestellt, daß diese beim Aufschieben des Rohrs 20 auf den Stutzen 10 nicht verschoben wird. Durch die weiteren, sich im Rohr 20 verkrallenden Kragen 14 wird die Abzugsfestigkeit des Rohrs 20 erreicht. When the tube 20 is fastened on the nozzle 10, it is pushed onto the nozzle 10 in the direction of the longitudinal axis 12. The tube 20 is expanded and the collar 14 claw under plastic deformation of the tube 20 in its inner circumference. The socket 22 is at Sliding on the nozzle 10 extends elastically and is arranged in the end position of the tube 20 in the region of the collar 14a. The prestressed bushing 22 exerts a pressure on the tube 20 in the region of the collar 14a and thus achieves a secure seal, even if the tube 20 widens after being heated up considerably. If the connector 10 and the bushing 22 are made of the same plastic, they expand approximately the same amount when heated, so that essentially the same pressure remains as in the unheated state. The dimensions of the socket 22 are such that the tolerances and out-of-roundness of the connector 10 and the tube 20 are compensated for. The fact that the bushing 22 is fixed between the elevations 26 in the direction of the longitudinal axis 12 ensures that this is not moved when the tube 20 is pushed onto the socket 10. The pull-off strength of the tube 20 is achieved by means of the further collars 14 clawing in the tube 20.

Claims

Ansprüche Expectations
1. Befestigungsanordnung einer Kraftstoffleitung auf einem Stutzen, dadurch gekennzeichnet, daß die Kraftstoffleitung (20) als ein aus Kunststoff bestehendes Rohr ausgebildet ist, daß der Stutzen (10) mehrere in Richtung seiner Längsachse (12) zueinander beabstandete, aus dessen Außenumfang hervorstehende Kragen (14) aufweist und daß auf dem Kraftstoffröhr (20) in dessen auf den Stutzen (10) aufschiebbaren Endbereich eine elastisch aufweitbare Buchse (22) in Richtung der Längsachse (12) fixiert angeordnet ist.1. Fastening arrangement of a fuel line on a nozzle, characterized in that the fuel line (20) is designed as a tube made of plastic, that the nozzle (10) several in the direction of its longitudinal axis (12) spaced from each other, projecting from its outer circumference ( 14) and that an elastically expandable bushing (22) is arranged in the direction of the longitudinal axis (12) in a fixed manner on the fuel tube (20) in the end region which can be pushed onto the connecting piece (10).
2. Befestigungsanordnung nach Anspruch 1, dadurch gekennzeichnet, daß das Kraftstoffröhr (20) zwei nach außen abstehende, in Richtung der Längsachse (12) des Stutzens (10) zueinander beabstandete Erhebungen (26) aufweist, zwischen denen die Buchse (22) angeordnet ist.2. Fastening arrangement according to claim 1, characterized in that the fuel tube (20) has two outwardly projecting, in the direction of the longitudinal axis (12) of the nozzle (10) mutually spaced elevations (26), between which the bushing (22) is arranged .
3. Befestigungsanordnung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Buchse (22) aus Metall besteht.3. Fastening arrangement according to claim 1 or 2, characterized in that the bush (22) consists of metal.
4. Befestigungsanordnung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Buchse (22) aus Kunststoff besteht.4. Fastening arrangement according to claim 1 or 2, characterized in that the socket (22) consists of plastic.
5. Befestigungsanordnung nach Anspruch 4, dadurch gekennzeichnet, daß der Stutzen (10) aus Kunststoff besteht und daß die Buchse (22) aus demselben Kunststoff wie der Stutzen (10) besteht. 5. Fastening arrangement according to claim 4, characterized in that the socket (10) consists of plastic and that the bushing (22) consists of the same plastic as the socket (10).
6. Befestigungsanordnung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß wenigstens ein dem freien Ende des Stutzens (10) am nächsten angeordneter erster Kragen (14a) weniger weit aus dem Außenumfang des Stutzens (10) hervorsteht und/oder weniger scharfkantig ausgebildet ist als die übrigen Kragen (14) und daß die Buchse (22) bei auf dem Stutzen (10) angeordnetem Kraftstoffröhr (20) im Bereich des ersten Kragens (14a) angeordnet ist. 6. Fastening arrangement according to one of the preceding claims, characterized in that at least one of the free end of the socket (10) arranged next to the first collar (14a) protrudes less far from the outer circumference of the socket (10) and / or is less sharp-edged than the remaining collars (14) and that the bushing (22) is arranged in the region of the first collar (14a) when the fuel tube (20) is arranged on the connecting piece (10).
EP96943870A 1996-01-27 1996-10-14 Fastening device for attaching a fuel line to a connecting piece Withdrawn EP0817913A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19602907 1996-01-27
DE19602907A DE19602907A1 (en) 1996-01-27 1996-01-27 Fastening arrangement of a fuel line on a nozzle
PCT/DE1996/001955 WO1997027394A1 (en) 1996-01-27 1996-10-14 Fastening device for attaching a fuel line to a connecting piece

Publications (1)

Publication Number Publication Date
EP0817913A1 true EP0817913A1 (en) 1998-01-14

Family

ID=7783835

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96943870A Withdrawn EP0817913A1 (en) 1996-01-27 1996-10-14 Fastening device for attaching a fuel line to a connecting piece

Country Status (9)

Country Link
US (1) US6155302A (en)
EP (1) EP0817913A1 (en)
JP (1) JPH11503509A (en)
KR (1) KR100280066B1 (en)
CN (1) CN1067461C (en)
BR (1) BR9607807A (en)
DE (1) DE19602907A1 (en)
RU (1) RU2166118C2 (en)
WO (1) WO1997027394A1 (en)

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WO1997027394A1 (en) 1997-07-31
JPH11503509A (en) 1999-03-26
BR9607807A (en) 1998-07-07
KR19980702537A (en) 1998-07-15
CN1177998A (en) 1998-04-01
DE19602907A1 (en) 1997-07-31
CN1067461C (en) 2001-06-20
KR100280066B1 (en) 2001-10-27
RU2166118C2 (en) 2001-04-27
US6155302A (en) 2000-12-05

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