EP2092230A1 - Conduite présentant un raccord fileté - Google Patents

Conduite présentant un raccord fileté

Info

Publication number
EP2092230A1
EP2092230A1 EP07822144A EP07822144A EP2092230A1 EP 2092230 A1 EP2092230 A1 EP 2092230A1 EP 07822144 A EP07822144 A EP 07822144A EP 07822144 A EP07822144 A EP 07822144A EP 2092230 A1 EP2092230 A1 EP 2092230A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
counterpart
sealing surface
stop collar
radius
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Withdrawn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
EP07822144A
Other languages
German (de)
English (en)
Inventor
Klaus Ferchau
Bernd Beisenherz
Athanasios Anastasiadis
René KLEEBERG
Ralf Oelmann
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.)
Bayerische Motoren Werke AG
ContiTech Schlauch GmbH
Original Assignee
Bayerische Motoren Werke AG
ContiTech Schlauch 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 Bayerische Motoren Werke AG, ContiTech Schlauch GmbH filed Critical Bayerische Motoren Werke AG
Publication of EP2092230A1 publication Critical patent/EP2092230A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L27/00—Adjustable joints, Joints allowing movement
    • F16L27/02—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction
    • F16L27/04—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces
    • F16L27/047—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces held in place by a screwed member having an internal spherical surface
    • 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
    • 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
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
    • F16L19/025—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges

Definitions

  • the invention relates to a pipeline with a gas-tight connection with a sealing surface and an axially adjacent stop collar having nozzle, a counterpart with a nozzle associated with the sealing surface and a union nut, with which the plugged into the counter piece and the counterpart are firmly connected, wherein the cooperating with the sealing surface of the counterpart sealing surface of the nozzle is designed as a spherical cap with a first radius and the stop collar of the nozzle is designed as a spherical cap with a second radius and the nozzle has a pivot point and the union nut has a spherical cap-shaped stop surface with a third radius, which corresponds to the spherical cap-shaped stop collar of the nozzle.
  • Pipelines with such fittings are used for example in motor vehicles for fuel lines.
  • the glands are often designed according to DIN 7631.
  • the sealing surfaces of the nozzle and counterpart each have a corresponding conical shape.
  • Such compounds can not be used at an angular offset of conical nozzle and counterpart, as a gas tightness is thus not achievable.
  • a nozzle with a rounded sealing surface is used, a tightness can also be achieved even with an angle, but only very small angles are possible, since when the nozzle is screwed it is less one-sided Pressing is effective and the connection can be quickly leaking under swinging load.
  • the one-sided lower pressure results from the fact that with angular misalignment the union nut no longer presses evenly on the stop collar of the nozzle.
  • connection arrangements are disclosed for pipes having a sealing head, are formed in the sealing surface and Druckfikiee of the sealing head as a spherical cap. As a result, an angular offset in the connection arrangement is possible.
  • the corresponding active surfaces of spherical cap of the sealing head with the sealing seat and spherical cap of the sealing head with the pressure shoulder of the nut are designed such that it can lead to a change in length in the connection arrangement to a change in length within the arrangement and thus leaks.
  • the invention has for its object to provide a pipeline of the type described above, which allows a better gas tightness with high vibration resistance even at a larger angular displacement.
  • the second radius of the stop collar is greater than the first radius of the sealing surface of the nozzle.
  • Fig. 1 shows a portion of a pipe according to the invention with screw without
  • the section 1 of a pipeline shown in FIG. 1 has a screw connection 2 with a connecting piece 3, a counterpart 4 and a union nut 5.
  • Stub 3 and counterpart 4 each have a through hole 6 and 7, which are aligned.
  • the nozzle 3 has a sealing surface 8, the spherical cap-shaped and associated with the counterpart 4. Furthermore, the nozzle 3 an axially adjacent stop collar 9, which is also formed kugelkalottenförmig and the union nut 5 is assigned.
  • the counterpart 4 has a conical sealing surface 11, with which the nozzle 3 is in contact with its spherical cap-shaped sealing surface 8.
  • the union nut 5 has a stop surface 12, which corresponds to the spherical cap stop collar 9 of the nozzle 3 and is in contact.
  • the union nut 5 can be screwed to the counterpart 4 via a threaded connection 13.
  • the spherical cap-shaped sealing surface 8 of the nozzle 3 has a radius 14 and the stop collar 9 has a radius 15, wherein the radius 15 is greater than the radius 14. Both radii 14 and 15 have together with the radius 16 of the spherical cap-shaped stop surface 12 has a common center 10th which is congruent with the lying on the longitudinal axis 17 of the screw 2 pivot point 10 of the nozzle 3.
  • connection piece 3 and counterpart 4 are firmly pressed together, the surface pressure between the spherical cap-shaped sealing surface 8 of the connection piece 3 and the conical sealing surface 11 of the counterpart 4 being larger than the surface pressure between the stop collar 9 of the nozzle 3 and the stop surface 12 of the union nut 5. This reduces the torque required for a tight connection of the screw 2.
  • Stop surface 12 and the stop collar 9 in the form of a spherical cap also at Angular offset a safe and tight connection between the sealing surface 8 of the nozzle 3 and the conical sealing surface 11 of the counterpart 4 is given. Characterized in that the centers of all by the radii 14, 15 and 16 certain spherical cap-shaped surfaces 8, 9 and 12 coincide in a common center 10, which is also pivot point of the nozzle 3, the angular offset is not associated with a change in length.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Joints With Pressure Members (AREA)

Abstract

L'invention concerne une conduite (1) comprenant un raccord fileté étanche au gaz (2) présentant une tubulure (3), une pièce antagoniste (4) et un écrou de raccordement (5), au moyen duquel la tubulure (3) insérée dans la pièce antagoniste (4) et la pièce antagoniste (4) sont assemblées rigidement entre elles. Afin de permettre un décalage angulaire entre la tubulure (3) et la pièce antagoniste (4), la surface d'étanchéité (8) et le collet de butée (9) de la tubulure (3) et la surface de butée (12) de l'écrou de raccordement (5) sont réalisés en forme de calotte sphérique. Le fait que les centres des surfaces de calotte sphérique (8, 9, 12) coïncident en un point commun (10) permet d'empêcher, en cas de décalage angulaire de la tubulure (3) et de la pièce antagoniste (4), une variation de longueur de la conduite (1).
EP07822144A 2006-11-14 2007-11-01 Conduite présentant un raccord fileté Withdrawn EP2092230A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102006053875 2006-11-14
DE102007050203A DE102007050203A1 (de) 2006-11-14 2007-10-20 Rohrleitung mit einer Verschraubung
PCT/EP2007/061798 WO2008058852A1 (fr) 2006-11-14 2007-11-01 Conduite présentant un raccord fileté

Publications (1)

Publication Number Publication Date
EP2092230A1 true EP2092230A1 (fr) 2009-08-26

Family

ID=39267771

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07822144A Withdrawn EP2092230A1 (fr) 2006-11-14 2007-11-01 Conduite présentant un raccord fileté

Country Status (3)

Country Link
EP (1) EP2092230A1 (fr)
DE (1) DE102007050203A1 (fr)
WO (1) WO2008058852A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2963323B1 (fr) * 2014-07-02 2017-12-27 SchmitterGroup AG Usage d'un raccord de conduites tubulaires pour transporter du gaz hydrogène et raccord de conduites tubulaires avec du gaz hydrogène
ITUB20160780A1 (it) * 2016-02-16 2017-08-16 Bosch Gmbh Robert Connettore per un gruppo pompa di un impianto di alimentazione di combustibile ad un motore a combustione interna, gruppo pompa e impianto di alimentazione

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1825825A (en) * 1927-03-16 1931-10-06 Schulder Fred Coupling connection
US5290075A (en) * 1992-06-15 1994-03-01 Aeroquip Corporation Connector and ball joint assembly
US5975588A (en) * 1997-09-06 1999-11-02 Hesseln; Joerg Turnable pipe and hose connections
DE29824253U1 (de) * 1997-09-06 2000-10-05 Hesseln Joerg Schwenkbare Rohr- und Schlauchleitungsverbindung
ES1042457Y (es) * 1999-02-24 2000-01-16 Cepex S A Racor para el acoplamiento entre tubos.
DE102005003519A1 (de) 2005-01-25 2006-08-03 Benteler Automobiltechnik Gmbh Verbindungsanordnung für Rohre
DE102005045731B4 (de) 2005-09-23 2010-09-23 Benteler Automobiltechnik Gmbh Verbindungsanordnung für Rohre

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008058852A1 *

Also Published As

Publication number Publication date
WO2008058852A1 (fr) 2008-05-22
DE102007050203A1 (de) 2008-05-15

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