EP0933509B2 - Exhaust manifold - Google Patents

Exhaust manifold Download PDF

Info

Publication number
EP0933509B2
EP0933509B2 EP98118632A EP98118632A EP0933509B2 EP 0933509 B2 EP0933509 B2 EP 0933509B2 EP 98118632 A EP98118632 A EP 98118632A EP 98118632 A EP98118632 A EP 98118632A EP 0933509 B2 EP0933509 B2 EP 0933509B2
Authority
EP
European Patent Office
Prior art keywords
pipe
sliding seat
sliding fit
flange
pipe connection
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.)
Expired - Lifetime
Application number
EP98118632A
Other languages
German (de)
French (fr)
Other versions
EP0933509A1 (en
EP0933509B1 (en
Inventor
Johannes Bussmann
Andreas Dr.-Ing. Fritz
Jürgen Dipl.-Ing. Kleinschmidt
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.)
Benteler Deustchland GmbH
Original Assignee
Benteler Deustchland 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7855927&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0933509(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Benteler Deustchland GmbH filed Critical Benteler Deustchland GmbH
Publication of EP0933509A1 publication Critical patent/EP0933509A1/en
Application granted granted Critical
Publication of EP0933509B1 publication Critical patent/EP0933509B1/en
Publication of EP0933509B2 publication Critical patent/EP0933509B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
    • 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
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1883—Construction facilitating manufacture, assembly, or disassembly manufactured by hydroforming
    • 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
    • F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
    • F01N2260/10—Exhaust treating devices having provisions not otherwise provided for for avoiding stress caused by expansions or contractions due to temperature variations
    • 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
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/24—Concentric tubes or tubes being concentric to housing, e.g. telescopically assembled

Definitions

  • the invention relates to an exhaust manifold according to the features in the preamble of claim 1.
  • a generic Adgaskrümmer is out DE-A-43 39 290 known.
  • Such an exhaust manifold comprises a curved one End section, to which usually two Affix T sections.
  • the end section and the T-sections have a flange connection and a Pipe connection on.
  • the T-sections have a sliding seat nozzle.
  • the flange connection about the flange connection are the T-sections as well as the end section with a head flange to the engine-side connection of the exhaust manifold connected. To allow for expansion compensation, are the end portion and the T-sections each connected via sliding seats. For this overlaps the sliding seat of a T-section the pipe connection of the end section or the pipe connection an adjacent T-section end.
  • the T-sections of the exhaust manifold are made from a straight pipe section. For this is by hydraulic hydrofoil a substantially perpendicular to the tube axis projecting nozzle-shaped Bulge generated. This will be end opened by a saw cut. This way will the flange connection made.
  • the sliding seat nozzle is formed by one end of the exit tube.
  • the invention is therefore based on the
  • the prior art is based on the object, one in his Functionality improved exhaust manifold too create.
  • crux of the invention is the measure, the sliding seat nozzle by hydroforming at the outer radius of a pipe bend.
  • the output pipe is a bent pipe for use.
  • For the sliding seat neck is first at the outer radius of the pipe bend a bulge hydraulically generated. This is the end by a Saw cut open.
  • the saw cut oblique to the vertical transverse plane of the bulge or the pipe connection of a tee.
  • the flange connection of a T-piece can according to the technical or constructive requirements be executed long. This will both the attachment of the head flange as well as the assembly of the Exhaust manifold facilitated on the engine.
  • the length of a sliding seat can be kept relatively short.
  • a ratio of the length of the sliding seat to the diameter of a pipe bend of about 0.3 to 0.7, preferably 0.5, on. That way is one advantageous hydroforming production of Sliding seat neck possible without material thinning is to be feared.
  • the sliding seat between end portion and subsequent T-section or between the T-sections each other is guided by the merging of the respective sliding seat nozzle with the pipe connection guaranteed.
  • an exhaust manifold 1 is shown with a multi-channel inflow 2 and a single-channel outflow 3.
  • the exhaust manifold 1 essentially comprises three manifold components, namely a curved end portion 4, to which two Affix T-sections 5 and 6.
  • a curved end portion 4 to which two Affix T-sections 5 and 6.
  • T-sections 5 and 6 To make a stretch or length compensation of this pipe assembly in the exhaust system to allow the end section 4 and the T-section 5 and the T-section 5 and the T-section 6 each have a sliding seat 7 and 8 respectively connected with each other.
  • the bent end portion 4 has a Flange connection 9 and a pipe connection 10. Also the T-sections 5, 6 have a flange connection 11, 12 and a pipe connection 13, 14. Furthermore own the T-sections 5, 6 each have a sliding seat nozzle 15, 16.
  • Each T-section 5, 6 is a pipe bend 17, 18 made, on the wall of the sliding seat nozzle 15 or 16 is formed.
  • the saw cut is oblique executed, so that the ends 21, 22 of the sliding seat 15, 16 relative to the vertical plane accordingly slanting at an angle. Also the end 23 from the pipe connection 10 and the end 24 of the pipe connection 13 is bevelled. This way will an impairment of the flow conditions in the Elbow area 19 and 20 avoided.
  • the sliding seat 7 and 8 is formed by the fact that the sliding seat nozzle 15 of the T-section 5, the pipe connection 10 and the sliding seat nozzle 16 of the T-section 6, the pipe connection 13 of the T-section 5 end overlaps, wherein the sliding seat nozzle 15 and 16 and the pipe connections 10 and 13 each lie against each other in a media-tight manner. Accordingly, the diameter D 1 of the sliding seat nozzle 15, 16 by a corresponding amount greater than the diameter D 2 of the pipe connections 10 and 13th
  • the ratio of the length L s of a sliding seat stub 15, 16 measured along the center line ML to the diameter D of a pipe bend 17, 18, which corresponds to D 2 , is 0.5.
  • an exhaust manifold 1 For completing an exhaust manifold 1 is at its inflow 2 a not shown here Head flange fixed. To the head flange are the Flange connections 9 and 11 and 12 in diameter widened. At the outflow side 3 also closes via a sliding seat an exhaust pipe or intermediate pipe with an end head flange.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Exhaust Silencers (AREA)
  • Fluid-Damping Devices (AREA)

Description

Die Erfindung betrifft einen Abgaskrümmer gemäß den Merkmalen im Oberbegriff des Anspruchs 1.The invention relates to an exhaust manifold according to the features in the preamble of claim 1.

Ein gattungs gemäßer Adgaskrümmer ist aus der DE-A-43 39 290 bekannt.A generic Adgaskrümmer is out DE-A-43 39 290 known.

Ein solcher Abgaskrümmer umfasst einen gebogenen Endabschnitt, an den sich üblicherweise zwei T-Abschnitte angliedern. Der Endabschnitt und die T-Abschnitte weisen einen Flanschanschluss und einen Rohranschluss auf. Desweiteren besitzen die T-Abschnitte einen Schiebesitzstutzen.Such an exhaust manifold comprises a curved one End section, to which usually two Affix T sections. The end section and the T-sections have a flange connection and a Pipe connection on. Furthermore, the T-sections have a sliding seat nozzle.

Über den Flanschanschluss sind die T-Abschnitte ebenso wie der Endabschnitt mit einem Kopfflansch zur motorseitigen Anbindung des Abgaskrümmers verbunden. Um einen Dehnungsausgleich zu ermöglichen, sind der Endabschnitt und die T-Abschnitte jeweils über Schiebesitze miteinander verbunden. Hierzu übergreift der Schiebesitzstutzen eines T-Abschnitts den Rohranschluss des Endabschnitts bzw. den Rohranschluss eines benachbarten T-Abschnitts endseitig.About the flange connection are the T-sections as well as the end section with a head flange to the engine-side connection of the exhaust manifold connected. To allow for expansion compensation, are the end portion and the T-sections each connected via sliding seats. For this overlaps the sliding seat of a T-section the pipe connection of the end section or the pipe connection an adjacent T-section end.

Die T-Abschnitte des Abgaskrümmers werden aus einem geraden Rohrabschnitt hergestellt. Hierzu wird mittels hydraulischem Innenhochdruck eine im wesentlichen rechtwinklig zur Rohrachse abstehende stutzenförmige Ausbauchung erzeugt. Diese wird endseitig durch einen Sägeschnitt geöffnet. Auf diese Weise wird der Flanschanschluss hergestellt. Der Schiebesitzstutzen wird von einem Ende des Ausgangsrohrs gebildet.The T-sections of the exhaust manifold are made from a straight pipe section. For this is by hydraulic hydrofoil a substantially perpendicular to the tube axis projecting nozzle-shaped Bulge generated. This will be end opened by a saw cut. This way will the flange connection made. The sliding seat nozzle is formed by one end of the exit tube.

Nachteilig hieran ist, dass die Länge des Flanschanschlusses aufgrund der hydroformtechnischen Ausbildung begrenzt ist, und zwar auf maximal das Ein- bis Zweifache des Durchmessers eines Ausgangsrohrs. Eine größere Länge des Flanschanschlusses könnte zu einer unzulässigen Materialverdünnung führen. Die Auslegung anderer Bauteilkomponenten muss daher auf die kurze Flanschlänge abgestimmt werden. Auch die Festlegung des Kopfflansches wird hierdurch erschwert. Ferner werden die Einbaubedingungen des Abgaskrümmers beeinträchtigt, da die Anschlagpunkte für die Festlegung am Motor schwerer zugänglich sind. Damit stoßen die konstruktive Gestaltung und der technischen Einsatz eines solchen Abgaskrümmers an ihre Grenzen.The disadvantage of this is that the length of the Flange connection due to hydroforming technology Training is limited, to a maximum one to two times the diameter of an exit tube. A greater length of the flange connection could lead to an impermissible material thinning to lead. The design of other components must therefore be adapted to the short flange length become. The definition of the head flange is makes this difficult. Furthermore, the installation conditions the exhaust manifold affected because the attachment points hard to access for fixing to the engine are. This bumps the structural design and the technical use of such exhaust manifold to their limits.

Der Erfindung liegt daher ausgehend vom Stand der Technik die Aufgabe zugrunde, einen in seiner Funktionalität verbesserten Abgaskrümmer zu schaffen.The invention is therefore based on the The prior art is based on the object, one in his Functionality improved exhaust manifold too create.

Die Lösung dieser Aufgabe besteht nach der Erfindung in den Merkmalen des Anspruchs 1.The solution to this problem consists of the Invention in the features of claim 1.

Vorteilhafte Ausgestaltungen der Erfindung bilden Gegenstand der abhängigen Ansprüche 2 und 3.Advantageous embodiments of the invention form the subject of dependent claims 2 and 3.

Kernpunkt der Erfindung bildet die Maßnahme, den Schiebesitzstutzen durch Innenhochdruckformung am Außenradius eines Rohrbogens zu formen.Crux of the invention is the measure, the sliding seat nozzle by hydroforming at the outer radius of a pipe bend.

Als Ausgangsrohr kommt ein gebogenes Rohr zum Einsatz. Für den Schiebesitzstutzen wird zunächst am Außenradius des Rohrbogens eine Ausbauchung hydraulisch erzeugt. Diese wird endseitig durch einen Sägeschnitt geöffnet. Vorzugsweise ist der Sägeschnitt schräg zur vertikalen Querebene der Ausbauchung bzw. des Rohranschlusses eines T-Stücks geführt.The output pipe is a bent pipe for use. For the sliding seat neck is first at the outer radius of the pipe bend a bulge hydraulically generated. This is the end by a Saw cut open. Preferably, the saw cut oblique to the vertical transverse plane of the bulge or the pipe connection of a tee.

Der Flanschanschluss eines T-Stücks kann den technischen bzw. konstruktiven Anforderungen entsprechend lang ausgeführt sein. Hierdurch wird sowohl der Anbau des Kopfflansches als auch die Montage des Abgaskrümmers am Motor erleichtert.The flange connection of a T-piece can according to the technical or constructive requirements be executed long. This will both the attachment of the head flange as well as the assembly of the Exhaust manifold facilitated on the engine.

Die Länge eines Schiebesitzstutzens kann verhältnismäßig kurz gehalten werden. Für die Praxis bietet sich ein Verhältnis der Länge des Schiebesitzstutzens zum Durchmesser eines Rohrbogens von etwa 0,3 bis 0,7, vorzugsweise 0,5, an. Auf diese Weise ist eine vorteilhafte hydroformtechnische Herstellung des Schiebesitzstutzens möglich, ohne dass eine Materialverdünnung zu befürchten ist.The length of a sliding seat can be kept relatively short. For the practice offers a ratio of the length of the sliding seat to the diameter of a pipe bend of about 0.3 to 0.7, preferably 0.5, on. That way is one advantageous hydroforming production of Sliding seat neck possible without material thinning is to be feared.

Der Schiebesitz zwischen Endabschnitt und anschließendem T-Abschnitt bzw. zwischen den T-Abschnitten untereinander wird durch das Ineinanderführen des jeweiligen Schiebesitzstutzens mit dem Rohranschluss gewährleistet. Hierzu übergreift der Schiebesitzstutzen den jeweiligen Rohranschluss. Damit wird eine zuverlässige Abgasführung gewährleistet. Für die Praxis ist es ferner vorteilhaft, wenn die in den Schiebesitzstutzen eintauchenden Enden der Rohranschlüsse abgeschrägt sind, und zwar so, dass sie sich der Kontur eines Rohrbogens anpassen. Auf diese Weise wird eine Beeinträchtigung der Abgasführung bzw. Strömungsverhältnisse in dem Rohrverbund vermieden.The sliding seat between end portion and subsequent T-section or between the T-sections each other is guided by the merging of the respective sliding seat nozzle with the pipe connection guaranteed. For this purpose overlaps the sliding seat nozzle the respective pipe connection. This is a reliable exhaust system guaranteed. In practice, it is also advantageous if the immersed in the sliding seat neck Ends of the pipe connections are chamfered, and Although in such a way that they adapt to the contour of a pipe bend. In this way, an impairment of the Exhaust system or flow conditions in the Pipe joint avoided.

Im Rahmen der Erfindung ist auch eine doppelwandige Ausbildung des Abgaskrümmers möglich.In the context of the invention is also a double-walled Training the exhaust manifold possible.

Die Erfindung ist nachfolgend anhand eines in der Abbildung dargestellten Ausführungsbeispiels näher beschrieben.The invention is described below with reference to a in the embodiment shown in more detail described.

In der Figur 1 ist ein Abgaskrümmer 1 dargestellt mit einer mehrkanaligen Einströmseite 2 und einer einkanaligen Ausströmseite 3. Der Abgaskrümmer 1 umfasst im wesentlichen drei Krümmerbauteile, nämlich einen gebogenen Endabschnitt 4, an den sich zwei T-Abschnitte 5 und 6 angliedern. Um einen Dehnungs- bzw. Längenausgleich dieses Rohrverbunds bei der Abgasführung zu ermöglichen, sind der Endabschnitt 4 und der T-Abschnitt 5 sowie der T-Abschnitt 5 und der T-Abschnitt 6 jeweils über einen Schiebesitz 7 bzw. 8 miteinander verbunden.In the figure 1, an exhaust manifold 1 is shown with a multi-channel inflow 2 and a single-channel outflow 3. The exhaust manifold 1 essentially comprises three manifold components, namely a curved end portion 4, to which two Affix T-sections 5 and 6. To make a stretch or length compensation of this pipe assembly in the exhaust system to allow the end section 4 and the T-section 5 and the T-section 5 and the T-section 6 each have a sliding seat 7 and 8 respectively connected with each other.

Der gebogene Endabschnitt 4 besitzt einen Flanschanschluss 9 und einen Rohranschluss 10. Auch die T-Abschnitte 5, 6 weisen einen Flanschanschluss 11, 12 und einen Rohranschluss 13, 14 auf. Ferner besitzen die T-Abschnitte 5, 6 jeweils einen Schiebesitzstutzen 15, 16.The bent end portion 4 has a Flange connection 9 and a pipe connection 10. Also the T-sections 5, 6 have a flange connection 11, 12 and a pipe connection 13, 14. Furthermore own the T-sections 5, 6 each have a sliding seat nozzle 15, 16.

Jeder T-Abschnitt 5, 6 ist aus einem Rohrbogen 17, 18 hergestellt, an dessen Wandung der Schiebesitzstutzen 15 bzw. 16 ausgeformt ist.Each T-section 5, 6 is a pipe bend 17, 18 made, on the wall of the sliding seat nozzle 15 or 16 is formed.

Hierzu ist am Aussenradius Ra des Rohrbogens 17, 18 im zwischen Flanschanschluss 11, 12 und 20 mittels hydraulischer Innenhochdruckformung zunächst ein Stutzen ausgebaucht worden. Dieser Stutzen wird anschließend durch einen Sägeschnitt geöffnet.For this purpose, at the outer radius R a of the pipe bend 17, 18 in the flange between 11, 12 and 20 by hydraulic hydroforming first a neck has been bulged. This nozzle is then opened by a saw cut.

Wie Figur 1 zeigt, ist der Sägeschnitt schräg ausgeführt, so dass die Enden 21, 22 der Schiebesitzstutzens 15, 16 gegenüber der Vertikalebene entsprechend in einem Winkel schräg verläuft. Auch das Ende 23 vom Rohranschluss 10 und das Ende 24 des Rohranschlusses 13 ist abgeschrägt. Auf diese Weise wird eine Beeinträchtigung der Strömungsverhältnisse im Krümmerbereich 19 bzw. 20 vermieden.As Figure 1 shows, the saw cut is oblique executed, so that the ends 21, 22 of the sliding seat 15, 16 relative to the vertical plane accordingly slanting at an angle. Also the end 23 from the pipe connection 10 and the end 24 of the pipe connection 13 is bevelled. This way will an impairment of the flow conditions in the Elbow area 19 and 20 avoided.

Der Schiebesitz 7 bzw. 8 wird dadurch gebildet, dass der Schiebesitzstutzen 15 des T-Abschnitts 5 den Rohranschluss 10 und der Schiebesitzstutzen 16 des T-Abschnitts 6 den Rohranschluss 13 des T-Abschnitts 5 endseitig übergreift, wobei die Schiebesitzstutzen 15 bzw. 16 und die Rohranschlüsse 10 bzw. 13 jeweils mediendicht aneinanderliegen. Dementsprechend ist der Durchmesser D1 der Schiebesitzstutzen 15, 16 um ein entsprechendes Maß grösser als der Durchmesser D2 der Rohranschlüsse 10 bzw. 13.The sliding seat 7 and 8 is formed by the fact that the sliding seat nozzle 15 of the T-section 5, the pipe connection 10 and the sliding seat nozzle 16 of the T-section 6, the pipe connection 13 of the T-section 5 end overlaps, wherein the sliding seat nozzle 15 and 16 and the pipe connections 10 and 13 each lie against each other in a media-tight manner. Accordingly, the diameter D 1 of the sliding seat nozzle 15, 16 by a corresponding amount greater than the diameter D 2 of the pipe connections 10 and 13th

Das Verhältnis der Länge Ls eines Schiebesitzstutzens 15, 16 gemessen entlang der Mittellinie ML zum Durchmesser D eines Rohrbogens 17, 18, welcher D2 entspricht, beträgt 0,5.The ratio of the length L s of a sliding seat stub 15, 16 measured along the center line ML to the diameter D of a pipe bend 17, 18, which corresponds to D 2 , is 0.5.

Zur Komplettierung eines Abgaskrümmers 1 wird an seiner Einströmseite 2 ein hier nicht dargestellte Kopfflansch festgelegt. Zum Kopfflansch hin sind die Flanschanschlüsse 9 bzw. 11 und 12 im Durchmesser aufgeweitet. An der Ausströmseite 3 schließt sich ebenfalls über einen Schiebesitz ein Auspuffrohr bzw. Zwischenrohr mit einem endseitigen Kopfflansch an.For completing an exhaust manifold 1 is at its inflow 2 a not shown here Head flange fixed. To the head flange are the Flange connections 9 and 11 and 12 in diameter widened. At the outflow side 3 also closes via a sliding seat an exhaust pipe or intermediate pipe with an end head flange.

BezugszeichenaufstellungREFERENCE NUMBERS [0025][0025]

1 -1 -
Abgaskrümmerexhaust manifold
2 -2 -
Einströmseiteinflow
3 -3 -
Ausströmseiteoutflow
4 -4 -
Endabschnittend
5 -5 -
T-AbschnittT section
6 -6 -
T-AbschnittT section
7 -7 -
Schiebesitzsliding seat
8 -8th -
Schiebesitzsliding seat
9 -9 -
Flanschanschlussflange
10 -10 -
Rohranschlusspipe connection
11 -11 -
Flanschanschlussflange
12 -12 -
Flanschanschlussflange
13 -13 -
Rohranschlusspipe connection
14 -14 -
Rohranschlusspipe connection
15 -15 -
SchiebesitzstutzenSliding fit port
16 -16 -
SchiebesitzstutzenSliding fit port
17 -17 -
RohrbogenElbows
18 -18 -
RohrbogenElbows
19 -19 -
Krümmerbereichbend region
20 -20 -
Krümmerbereichbend region
21 -21 -
Ende v. 15End of v. 15
22 -22 -
Ende v. 16End of v. 16
23 -23 -
Ende v. 10End of v. 10
24 -24 -
Ende v. 13End of v. 13
D -D -
Durchmesser v. 17 bzw. 18Diameter v. 17 or 18
D1 -D 1 -
Durchmesser v. 15 bzw. 16Diameter v. 15 or 16
D2 -D 2 -
Durchmesser v. 10 bzw. 13Diameter v. 10 or 13
Ls -L s -
Länge v. 15 bzw. 16Length v. 15 or 16
ML -ML -
Mittelliniecenter line
Ra -R a -
Außenradius v. 17 bzw. 18Outer radius v. 17 or 18

Claims (3)

  1. An exhaust gas manifold comprising a curved end portion (4) with at least two T-portions (5, 6) attached respectively via a sliding fit (7, 8), the end portion (4) and the T-portions (5, 6) each having a flange connection (9, 11, 12) fixed on a head flange, and a pipe connection (10, 13, 14), and each T-portion (5, 6) having a sliding fit port (15, 16), characterised in that each sliding fit port (15, 16) is formed by internal high-pressure forming on the outside radius (Ra) of a pipe bend (17, 18), and the sliding fit port (15) of the T-portion (5) engages over the end of the pipe connection (10) of the end portion (4) and the sliding fit port (16) of the T-portion (6) engages over the end of the pipe connection (13) of the T-portion (5).
  2. An exhaust gas manifold according to claim 1, characterised in that the sliding fit port (15, 16) and/or the pipe connection (10, 13) are bevelled at the end-face.
  3. An exhaust gas manifold according to claim 1 or 2, characterised in that the ratio of the length of the sliding fit port to the diameter of the pipe bend is about 0.5.
EP98118632A 1998-01-29 1998-10-01 Exhaust manifold Expired - Lifetime EP0933509B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803275 1998-01-29
DE19803275A DE19803275A1 (en) 1998-01-29 1998-01-29 Exhaust manifold

Publications (3)

Publication Number Publication Date
EP0933509A1 EP0933509A1 (en) 1999-08-04
EP0933509B1 EP0933509B1 (en) 2001-03-28
EP0933509B2 true EP0933509B2 (en) 2005-02-16

Family

ID=7855927

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98118632A Expired - Lifetime EP0933509B2 (en) 1998-01-29 1998-10-01 Exhaust manifold

Country Status (7)

Country Link
US (1) US6134886A (en)
EP (1) EP0933509B2 (en)
BR (1) BR9804289A (en)
CZ (1) CZ294172B6 (en)
DE (2) DE19803275A1 (en)
ES (1) ES2159417T5 (en)
PT (1) PT933509E (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19923557B4 (en) * 1999-05-21 2006-07-13 Daimlerchrysler Ag A built air gap insulated exhaust manifold of an exhaust system of a motor vehicle and a method for its production
US6293098B1 (en) * 2000-08-29 2001-09-25 George J. Coates Method and apparatus for joining pressurized exhaust manifold sections
DE10200638C2 (en) * 2002-01-10 2003-12-11 Benteler Automobiltechnik Gmbh Arrangement for guiding exhaust gas from an internal combustion engine
DE602004006698T2 (en) * 2003-12-01 2007-10-04 Nissan Motor Co., Ltd., Yokohama Exhaust manifold for an internal combustion engine
KR100794018B1 (en) 2006-10-31 2008-01-10 현대자동차주식회사 Exhaust manifold
JP2013213491A (en) * 2012-03-08 2013-10-17 Calsonic Kansei Corp Double pipe exhaust manifold
US20150315666A1 (en) * 2014-04-30 2015-11-05 Ford Global Technologies, Llc Induction annealing as a method for expanded hydroformed tube formability
US9422857B2 (en) * 2014-12-17 2016-08-23 Caterpillar Inc. Exhaust nozzle tip device and system
CN108699942B (en) 2016-02-05 2021-03-05 康明斯有限公司 System and method for equalizing engine cylinder backpressure

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4179884A (en) * 1977-08-08 1979-12-25 Caterpillar Tractor Co. Watercooled exhaust manifold and method of making same
US4644747A (en) * 1986-02-10 1987-02-24 General Motors Corporation Low-stress shielded exhaust passage assemblies
JPS63162918A (en) * 1986-12-25 1988-07-06 Kazuhito Fukazawa Manifold and manufacture thereof
US5159811A (en) * 1990-07-16 1992-11-03 Caterpillar Inc. Flexible coupling device for use in an engine manifold system
DE4228187C2 (en) * 1992-08-25 1995-04-27 Hde Metallwerk Gmbh Exhaust manifold for internal combustion engines
ES2081722T3 (en) * 1993-05-03 1996-03-16 Volkswagen Ag ELBOW TUBE.
DE4339290C2 (en) * 1993-11-18 1995-11-02 Daimler Benz Ag Process for the production of pipe T-pieces from an unbranched continuous pipe section by internal high pressure forming and device for carrying out the process
DE4444760C2 (en) * 1994-12-16 2003-02-13 Eberspaecher J Gmbh & Co Air gap insulated exhaust manifold
DE19510602C1 (en) * 1995-03-23 1996-04-11 Daimler Benz Ag Exhaust gas system for multicylinder engine
DE19511514C1 (en) * 1995-03-29 1996-08-01 Daimler Benz Ag Exhaust manifold for IC engine
DE19514020A1 (en) * 1995-04-13 1996-10-17 Daimler Benz Ag Exhaust manifold, in particular for an internal combustion engine in a motor vehicle, and method for its production
DE19606003A1 (en) * 1996-02-17 1997-06-12 Daimler Benz Ag Pipe connector with sliding seat

Also Published As

Publication number Publication date
DE59800573D1 (en) 2001-05-03
CZ322398A3 (en) 1999-08-11
DE19803275A1 (en) 1999-08-12
PT933509E (en) 2001-07-31
ES2159417T5 (en) 2005-09-01
CZ294172B6 (en) 2004-10-13
ES2159417T3 (en) 2001-10-01
EP0933509A1 (en) 1999-08-04
EP0933509B1 (en) 2001-03-28
BR9804289A (en) 1999-12-21
US6134886A (en) 2000-10-24

Similar Documents

Publication Publication Date Title
EP0933509B2 (en) Exhaust manifold
DE4039118A1 (en) Fuel distribution device for IC engine - is formed from two half units with sealing strip between them
DE3346394A1 (en) HOLLOW, TUBULAR CERAMIC BODY
DE10045499A1 (en) Exhaust system for motor cycles has two mufflers arranged in succession and with connecting pipe connected at one end to circumferential face of muffler cylinder and at other end to front inlet opening of second muffler
DE2621638C2 (en) Fresh gas line system for six-cylinder engines with turbocharging
DE2249174B2 (en) FASTENING A VIBRATION DAMPER, ESPECIALLY FOR MOTOR VEHICLES
DE4228188C2 (en) Vibration, bending and strain-absorbing front pipe of an internal combustion engine
DE7616060U1 (en) PIPING, IN PARTICULAR EXHAUST PIPE, OF A MOTOR VEHICLE
DE9015089U1 (en) Coaxial pipe system
DE60317271T2 (en) Production of a composite insulator body
EP3070205B1 (en) Foundation pile for a wind turbine
DE69010500T2 (en) METHOD FOR PRODUCING CIRCLES WITH A SMALL BEAM IN TUBULAR STRUCTURES.
DE3129351C2 (en) Flange for pipe elbows on combustion engines
DE4228187C2 (en) Exhaust manifold for internal combustion engines
EP3199794A1 (en) Fuel distribution rail and method for producing the same
DE4305886A1 (en) Exhaust manifold for internal combustion engines
EP0715064B1 (en) Exhaust system
AT408276B (en) PANEL OR FLAT RADIATORS
EP0733788B1 (en) Manifold for an internal combustion engine
EP1199450B1 (en) Exhaust manifold
DE4310187C2 (en) Pipe clamp
DE3122520C2 (en)
DE2157348A1 (en) Exhaust manifold for internal combustion engines
DE2909936A1 (en) Elastic tube for use in food industry - with telescopic joint between inner and outer tube sealed by O=ring
DE3604921A1 (en) METHOD FOR THE FOLDED OR BALANCED CONNECTION OF A PIPE TO A TERMINAL AND DEVICE, IN PARTICULAR FOR CARRYING OUT THIS METHOD

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19990507

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR GB IT PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

AKX Designation fees paid

Free format text: DE ES FR GB IT PT SE

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

17Q First examination report despatched

Effective date: 20000808

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB IT PT SE

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20010328

REF Corresponds to:

Ref document number: 59800573

Country of ref document: DE

Date of ref document: 20010503

ITF It: translation for a ep patent filed

Owner name: BARZANO' E ZANARDO ROMA S.P.A.

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 20010329

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2159417

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

26 Opposition filed

Opponent name: FRIEDRICH BOYSEN GMBH & CO. KG

Effective date: 20011221

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

PLAY Examination report in opposition despatched + time limit

Free format text: ORIGINAL CODE: EPIDOSNORE2

PLBC Reply to examination report in opposition received

Free format text: ORIGINAL CODE: EPIDOSNORE3

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 20050216

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): DE ES FR GB IT PT SE

GBTA Gb: translation of amended ep patent filed (gb section 77(6)(b)/1977)

Effective date: 20050323

REG Reference to a national code

Ref country code: SE

Ref legal event code: RPEO

REG Reference to a national code

Ref country code: ES

Ref legal event code: DC2A

Date of ref document: 20050513

Kind code of ref document: T5

ET3 Fr: translation filed ** decision concerning opposition
REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 18

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 19

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20171024

Year of fee payment: 20

Ref country code: DE

Payment date: 20171026

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20171023

Year of fee payment: 20

Ref country code: ES

Payment date: 20171121

Year of fee payment: 20

Ref country code: PT

Payment date: 20171002

Year of fee payment: 20

Ref country code: GB

Payment date: 20171019

Year of fee payment: 20

Ref country code: SE

Payment date: 20171019

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59800573

Country of ref document: DE

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20180930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20180930

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20181010

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20200724

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20181002