WO2007137704A1 - Section de collecteur d'échappement ainsi que procédé de fixation d'une tubulure sur un collecteur d'échappement - Google Patents

Section de collecteur d'échappement ainsi que procédé de fixation d'une tubulure sur un collecteur d'échappement Download PDF

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Publication number
WO2007137704A1
WO2007137704A1 PCT/EP2007/004336 EP2007004336W WO2007137704A1 WO 2007137704 A1 WO2007137704 A1 WO 2007137704A1 EP 2007004336 W EP2007004336 W EP 2007004336W WO 2007137704 A1 WO2007137704 A1 WO 2007137704A1
Authority
WO
WIPO (PCT)
Prior art keywords
wall
exhaust pipe
end portion
recess
nozzle
Prior art date
Application number
PCT/EP2007/004336
Other languages
German (de)
English (en)
Inventor
Robert Jedlitschka
Original Assignee
Emcon Technologies Germany (Augsburg) 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 Emcon Technologies Germany (Augsburg) Gmbh filed Critical Emcon Technologies Germany (Augsburg) Gmbh
Publication of WO2007137704A1 publication Critical patent/WO2007137704A1/fr

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
    • F16L41/00—Branching pipes; Joining pipes to walls
    • F16L41/008—Branching pipes; Joining pipes to walls for connecting a measuring instrument
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/22—Methods or apparatus for fitting, inserting or repairing different elements by welding or brazing

Definitions

  • the invention relates to an exhaust pipe section with a breakthrough having a wall and on the wall in the region of the opening from the outside attached nozzle, which has a continuously convexly curved end portion. Moreover, the invention relates to a method for fixing a nozzle with a continuously convexly curved end portion on an exhaust pipe.
  • various probes for detecting exhaust gas parameters may be provided, for example, lambda probes, pressure sensors, temperature sensors and the like.
  • these probes for example, the injection in the internal combustion engines or the exhaust aftertreatment, e.g. the regeneration of particulate filters, controlled.
  • a probe neck is provided, which in DE 42 24 251 C1 has a spherical cap, in the exhaust pipe partially protruding and fixed to the wall end portion.
  • the probe neck can be produced as a standard part, since it can be welded to the wall under various angular positions, depending on the available space available.
  • other functional parts may also be connected as probes on a nozzle to the interior of the exhaust pipe, e.g. Pressure pipes or injection elements.
  • the object of the invention is therefore to provide an exhaust pipe section with a nozzle or a method for its production, in which this problem does not occur.
  • this is provided in an exhaust pipe section of the type mentioned that the wall is formed in the portion surrounding the aperture as a recess in which the end portion is at least partially accommodated.
  • the wall of the exhaust pipe thus extends from the opening, over a certain range directly along the outer surface of the nozzle along, resulting in a kind of seal between the nozzle and the exhaust pipe, which prevents ingress of undesirable material into the exhaust pipe.
  • the end portion is connected to an outer edge of the recess with the wall. In this way it is ensured that no incurred during the attachment of the nozzle spatter or similar undesirable material can get into the exhaust pipe, since the connection of the exhaust pipe and nozzle is in a range that, based on the center axis of the nozzle, far out of the opening is arranged.
  • the depression is a concave, indented wall section which can be manufactured comparatively easily.
  • the nozzle has a central opening with a thread, which serve the arrangement or locking of a functional part, in particular a probe.
  • the recess should be substantially complementary to the recorded in her part of the
  • End section be designed. This means in particular that when the nozzle and thus the end portion is tilted relative to the normal of the wall, and the recess is carried out according to asymmetrical.
  • the nozzle is secured by welding to the wall, but it can also be soldered or glued. Even in the latter two cases, the embodiment according to the invention offers advantages. Going that no unwanted, resulting in the attachment material can get into the exhaust pipe.
  • a method for fastening a nozzle comprises the following steps: First, a breakthrough in a wall of the exhaust pipe is made, in particular by punching. Subsequently, a portion surrounding the aperture of the wall is pressed to form a concave depression. The curvature of the recess is adapted to the curvature of the end portion in a contact portion. Finally, the nozzle is inserted with the end portion in the recess and the end portion connected to the wall.
  • the inventive method is characterized in particular by its simplicity and thus low cost. It ensures that a standardized nozzle can be used for a wide variety of exhaust pipes; only the orientation of the recess depends on the orientation of the nozzle in a specific application.
  • the end portion is advantageously connected at an outer edge of the recess to the wall, which is arranged outside the opening.
  • the breakthrough can be made in the same operation as the indentation of the section surrounding the breakthrough.
  • FIG. 2 is a longitudinal section through an exhaust pipe section according to the invention.
  • FIG. 1 shows an exhaust pipe section of an internal combustion engine according to the prior art.
  • the exhaust pipe is defined by an exhaust pipe with a cylindrical wall 10.
  • a nozzle 12th fastened which has a convexly curved end portion 14 which projects in part through an opening 16 into the interior of the tube, that is in the exhaust pipe.
  • the nozzle 12 has a central opening 18 with a thread 20 for receiving a functional part, in particular a probe.
  • Immediately at the edge of the opening 16 of the nozzle 12 is fixed to the wall 10, welded here.
  • the weld is denoted by reference numeral 22. Unfavorable in the embodiment shown is that during the production of the weld 22 welding spatter can fall through a gap 24 between the end portion 14 and the edge of the opening 16 in the exhaust pipe.
  • the wall 10 is formed in a portion 26 surrounding the aperture 16 as a recess 28, in which the end portion 14 is received to a large extent.
  • the recess 28 is a concave indented wall portion, which is designed substantially complementary to the part of the end portion 14 received in it.
  • the convexly curved end portion 14 of the nozzle 12 is in particular a spherical cap. However, it may also have another shape, symmetrical or asymmetrical with respect to its central axis A, e.g.
  • the curvature of the end portion 14 should be designed with a view to the lowest possible flow resistance and low turbulence.
  • the end portion 14 is connected to an outer edge 30 of the recess 28 with the wall 10, welded here.
  • the end portion 14 could also be soldered or glued to the wall 10.
  • the nozzle 12 Due to the convex design of the end portion 14 of the nozzle 12 can be installed in different angular positions relative to the wall 10.
  • the nozzle 12 is opposite the cross-sectional plane B of Exhaust pipe tilted by an angle ⁇ .
  • the nozzle 12 may also be tilted in the cross-sectional plane B of the tube.
  • the aperture 16 in the wall 10 is made, e.g. by punching or by laser cutting. Subsequently, the portion 26 surrounding the aperture 16 is pressed in to form the concave recess 28 whose curvature is the curvature of the end portion 14, at least in one

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Exhaust Silencers (AREA)

Abstract

Section de collecteur d'échappement munie d'une paroi (10) comportant une percée (16) et d'une tubulure (12) fixée depuis l'extérieur à la paroi (10) dans la zone de la percée (16), avec une section finale (14) courbée de manière convexe en continu. La paroi (10) est configurée comme une cavité (28) dans la section (26) entourant la percée (16), cavité dans laquelle la section finale (14) est logée au moins partiellement. En outre, l'invention décrit un procédé de fixation d'une tubulure (12) avec une section finale (14) courbée de manière convexe en continu sur un collecteur d'échappement.
PCT/EP2007/004336 2006-05-29 2007-05-15 Section de collecteur d'échappement ainsi que procédé de fixation d'une tubulure sur un collecteur d'échappement WO2007137704A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200610024944 DE102006024944A1 (de) 2006-05-29 2006-05-29 Abgasleitungsabschnitt sowie Verfahren zu Befestigung eines Stutzens an einer Abgasleitung
DE102006024944.5 2006-05-29

Publications (1)

Publication Number Publication Date
WO2007137704A1 true WO2007137704A1 (fr) 2007-12-06

Family

ID=38196531

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/004336 WO2007137704A1 (fr) 2006-05-29 2007-05-15 Section de collecteur d'échappement ainsi que procédé de fixation d'une tubulure sur un collecteur d'échappement

Country Status (2)

Country Link
DE (1) DE102006024944A1 (fr)
WO (1) WO2007137704A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008019753A (ja) * 2006-07-12 2008-01-31 Calsonic Kansei Corp センサ取付用ボス部構造
WO2017187634A1 (fr) * 2016-04-28 2017-11-02 フタバ産業株式会社 Structure de montage de capteur de gaz d'échappement et procédé de fabrication de structure de montage de capteur de gaz d'échappement

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9249708B2 (en) * 2007-12-05 2016-02-02 Grundfos Nonox A/S Nozzle arrangement
DE102008047555B4 (de) * 2008-09-16 2016-11-17 Tenneco Gmbh Abgasgehäuse
DE202009008997U1 (de) 2009-06-30 2009-09-03 Fischer & Kaufmann Gmbh & Co. Kg Sondenstutzen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4224251C1 (de) * 1992-07-22 1993-12-02 Zeuna Staerker Kg Rohr- oder Schalenelement einer Abgasleitung mit einem Sondenstutzen
US20020172550A1 (en) * 2001-05-15 2002-11-21 Uhler Gregory Allen Sensor mount assembly
DE202005013904U1 (de) * 2005-09-02 2006-02-09 Elb-Form Ges.m.b.H. Rohr mit Sensoradapter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4224251C1 (de) * 1992-07-22 1993-12-02 Zeuna Staerker Kg Rohr- oder Schalenelement einer Abgasleitung mit einem Sondenstutzen
US20020172550A1 (en) * 2001-05-15 2002-11-21 Uhler Gregory Allen Sensor mount assembly
DE202005013904U1 (de) * 2005-09-02 2006-02-09 Elb-Form Ges.m.b.H. Rohr mit Sensoradapter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008019753A (ja) * 2006-07-12 2008-01-31 Calsonic Kansei Corp センサ取付用ボス部構造
WO2017187634A1 (fr) * 2016-04-28 2017-11-02 フタバ産業株式会社 Structure de montage de capteur de gaz d'échappement et procédé de fabrication de structure de montage de capteur de gaz d'échappement

Also Published As

Publication number Publication date
DE102006024944A1 (de) 2007-12-06

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