EP0857869A1 - Structure for supporting the exhaust gas recirculation conduit on the engine - Google Patents

Structure for supporting the exhaust gas recirculation conduit on the engine Download PDF

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Publication number
EP0857869A1
EP0857869A1 EP97121920A EP97121920A EP0857869A1 EP 0857869 A1 EP0857869 A1 EP 0857869A1 EP 97121920 A EP97121920 A EP 97121920A EP 97121920 A EP97121920 A EP 97121920A EP 0857869 A1 EP0857869 A1 EP 0857869A1
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EP
European Patent Office
Prior art keywords
exhaust gas
gas recirculation
internal combustion
recirculation line
combustion engine
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
EP97121920A
Other languages
German (de)
French (fr)
Other versions
EP0857869B1 (en
EP0857869B2 (en
Inventor
Josef Astner
Reinhard Krösche
Karl-Heinz Metzger
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.)
Mercedes Benz Group AG
Original Assignee
DaimlerChrysler AG
Daimler Benz AG
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Publication date
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Application filed by DaimlerChrysler AG, Daimler Benz AG filed Critical DaimlerChrysler AG
Publication of EP0857869A1 publication Critical patent/EP0857869A1/en
Publication of EP0857869B1 publication Critical patent/EP0857869B1/en
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    • 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
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/12—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems characterised by means for attaching parts of an EGR system to each other or to engine parts
    • 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
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/41—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories characterised by the arrangement of the recirculation passage in relation to the engine, e.g. to cylinder heads, liners, spark plugs or manifolds; characterised by the arrangement of the recirculation passage in relation to specially adapted combustion chambers

Definitions

  • the invention relates to a holder of an exhaust gas recirculation line on the motor housing of an internal combustion engine according to Preamble of claim 1.
  • DE 35 29 543 C2 is already a generic bracket an exhaust gas recirculation line on the engine housing of an internal combustion engine known, the exhaust gas recirculation line from a branches off the exhaust pipe near the engine and with an intake pipe Internal combustion engine is connected. Via an additional engine-fixed The support is the exhaust gas recirculation line along with the exhaust gas recirculation valve held on the cylinder head of the internal combustion engine.
  • the invention has for its object a compact bracket to create which with optimal use of the existing Space is easy and inexpensive to manufacture, as well as a time and cost saving installation.
  • An advantage of the holder according to the invention is that by integrating the support into part of the exhaust gas recirculation line the bracket can be manufactured in a very compact design is.
  • the saving of a separate support also enables a reduction in manufacturing costs while reducing weight the bracket and a reduction in assembly effort.
  • the component is not only used to hold the Exhaust gas recirculation line on the engine housing of the internal combustion engine, but also the support of the mixing housing and the Suction module.
  • the component By attaching the component to the cylinder head cover and both on the mixing housing Bracket of the exhaust gas recirculation line as well as the support of the Suction module and the mixing housing on the engine housing of the internal combustion engine.
  • the component also enables a reduction the assembly effort, since only one support is to be installed is.
  • In a particularly advantageous construction of the Invention has the component axially extending stiffening ribs which counteract the forces acting on the component.
  • a preferred embodiment of the invention provides that the Mounting on the cylinder head cover using the anyway for the Fastening the cylinder head cover to the cylinder head of the internal combustion engine required fastening screws.
  • the exhaust gas recirculation line 1 is formed in two parts and includes a first line part 5, which is by means of a pipe clamp 6 is sealingly connected to a second line part 7.
  • a first line part 5 of the exhaust gas recirculation line 1 branches from one Exhaust pipe 8 close to the engine, which in a collecting space 9 a Exhaust manifold 10 opens, which via exhaust pipes 11 at a Exhaust side 3a of the cylinder head 3 of the internal combustion engine is flanged.
  • That connecting to the first line part 5 second line part 7 is connected via a flange connection 12 a mixing housing 13 in connection, which in turn with a Intake line 14 of the internal combustion engine is connected.
  • the suction line 14 is part of a on an inlet side 3b of the cylinder head 3 flanged intake module 15.
  • Das Suction module 15 extends in the direction of an engine longitudinal axis 23 essentially over the entire length of the cylinder head 3 and approximately parallel to the direction of a motor vertical axis 24.
  • the mixing housing 13 has a first, via an upper side 15a of the suction module 15 protruding vacuum box 16, the one Exhaust gas recirculation valve arranged in the mixing housing 13 controls.
  • the mixing housing 13 has connections 17 for connecting one second vacuum box, not shown here, which a throttle valve also arranged in the mixing housing 13 controls.
  • the exhaust gas recirculation line 1 is in its course over a engine-fixed support 18 held on the internal combustion engine, wherein according to the invention, the second line part 7 of the exhaust gas recirculation line 1 with the support 18 to form a component 19 is.
  • the component 19 is preferably formed by a cast part and has axially extending stiffening ribs 22. In the area of the support 18, the component 19 has one piece molded mounting flange 20 and is over this Flange 20 using fastening screws 21 on the cylinder head cover 4 attached to the internal combustion engine.
  • the motor which is only partially shown, is installed in an inclined position, whereby the focus of the suction module 15 in the direction the engine vertical axis 24 viewed, approximately laterally above the cylinder head cover 4 lies. Due to the inclined position of the Motors acts on the suction module 15 together with the mixing housing 13 for a moment, which counteracts the holder connected to the suction module 15.
  • the component 19 forming the holder thus serves not only for exhaust gas recirculation, but also at the same time Supporting the mixing housing 13 and the suction module 15.
  • the fastening screws 21 for fastening the bracket or the component 19 on the cylinder head cover 4 at the same time for attaching the cylinder head cover 4 to the cylinder head 3 Serve internal combustion engine so that separate screws are omitted can.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
  • Exhaust Silencers (AREA)

Abstract

Die Erfindung bezieht sich auf eine Halterung einer Abgasrückführleitung (1) am Motorgehäuse (2) einer Brennkraftmaschine, wobei die Abgasrückführleitung (1) von einem motornahen Abgasrohr (8) abzweigt und mit einer Ansaugleitung (14) der Brennkraftmaschine verbunden ist und wobei die Abgasrückführleitung (1) in ihrem Verlauf über eine motorfeste Stütze (18) an der Brennkraftmaschine gehalten ist. Um eine Halterung einer Abgasrückführleitung (1) am Motorgehäuse einer Brennkraftmaschine derart auszubilden, daß eine kompakte Halterung geschaffen ist, welche vorhandenen Bauraum optimal nutzt, leicht und kostengünstig herstellbar ist, sowie eine zeit- und kostensparende Montage ermöglicht, wird erfindungsgemäß vorgeschlagen, daß zumindest ein Teil (7) der Abgasrückführleitung (1) mit der Stütze (18) zu einem Bauteil ausgebildet ist. <IMAGE>The invention relates to a holder for an exhaust gas recirculation line (1) on the engine housing (2) of an internal combustion engine, the exhaust gas recirculation line (1) branching off from an exhaust pipe (8) close to the engine and connected to an intake line (14) of the internal combustion engine, and wherein the exhaust gas recirculation line ( 1) is held on the internal combustion engine in its course via a motor-fixed support (18). In order to design a holder for an exhaust gas recirculation line (1) on the engine housing of an internal combustion engine in such a way that a compact holder is created which makes optimal use of the available space, is easy and inexpensive to manufacture, and enables time-saving and cost-saving installation, the invention proposes that at least one Part (7) of the exhaust gas recirculation line (1) with the support (18) is formed into a component. <IMAGE>

Description

Die Erfindung bezieht sich auf eine Halterung einer Abgasrückführleitung am Motorgehäuse einer Brennkraftmaschine gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a holder of an exhaust gas recirculation line on the motor housing of an internal combustion engine according to Preamble of claim 1.

Aus der DE 35 29 543 C2 ist bereits eine gattungsgemäße Halterung einer Abgasrückführleitung am Motorgehäuse einer Brennkraftmaschine bekannt, wobei die Abgasrückführleitung von einem motornahen Abgasrohr abzweigt und mit einer Ansaugleitung der Brennkraftmaschine verbunden ist. Über eine zusätzliche motorfeste Stütze ist die Abgasrückführleitung nebst Abgasrückführventil am Zylinderkopf der Brennkraftmaschine gehalten.DE 35 29 543 C2 is already a generic bracket an exhaust gas recirculation line on the engine housing of an internal combustion engine known, the exhaust gas recirculation line from a branches off the exhaust pipe near the engine and with an intake pipe Internal combustion engine is connected. Via an additional engine-fixed The support is the exhaust gas recirculation line along with the exhaust gas recirculation valve held on the cylinder head of the internal combustion engine.

Zum allgemeinen technischen Hintergrund wird noch auf die DE 40 17 074 A1 und die DE 195 07 354 A1 verwiesen.For the general technical background, reference is made to DE 40 17 074 A1 and DE 195 07 354 A1.

Der Erfindung liegt die Aufgabe zugrunde, eine kompakte Halterung zu schaffen, welche bei optimaler Nutzung des vorhandenen Bauraumes leicht und kostengünstig herstellbar ist, sowie eine zeit- und kostensparende Montage ermöglicht.The invention has for its object a compact bracket to create which with optimal use of the existing Space is easy and inexpensive to manufacture, as well as a time and cost saving installation.

Diese Aufgabe wird erfindungsgemäß durch die im Kennzeichen des Patentanspruchs 1 gegebenen Merkmale gelöst.This object is achieved by the in the characteristic of Features given claim 1 solved.

Ein Vorteil der erfindungsgemäßen Halterung liegt darin, daß durch die Integration der Stütze in einen Teil der Abgasrückführleitung die Halterung in sehr kompakter Bauweise herstellbar ist. Die Einsparung einer separaten Stütze ermöglicht zudem bei gleichzeitiger Gewichtsreduzierung eine Senkung der Herstellkosten der Halterung sowie eine Verringerung des Montageaufwands.An advantage of the holder according to the invention is that by integrating the support into part of the exhaust gas recirculation line the bracket can be manufactured in a very compact design is. The saving of a separate support also enables a reduction in manufacturing costs while reducing weight the bracket and a reduction in assembly effort.

Das Bauteil dient nicht nur wie oben erwähnt der Halterung der Abgasrückführleitung am Motorgehäuse der Brennkraftmaschine, sondern zusätzlich der Abstützung des Mischgehäuses und des Saugmoduls. Mit dem Befestigen des Bauteils an der Zylinderkopfhaube und am Mischgehäuse erfolgt gleichzeitig sowohl die Halterung der Abgasrückführleitung als auch die Abstützung des Saugmoduls sowie des Mischgehäuses am Motorgehäuse der Brennkraftmaschine. Zudem ermöglicht das Bauteil eine Verringerung des Montageaufwands, da nurmehr eine Abstützung zu montieren ist.The component is not only used to hold the Exhaust gas recirculation line on the engine housing of the internal combustion engine, but also the support of the mixing housing and the Suction module. By attaching the component to the cylinder head cover and both on the mixing housing Bracket of the exhaust gas recirculation line as well as the support of the Suction module and the mixing housing on the engine housing of the internal combustion engine. The component also enables a reduction the assembly effort, since only one support is to be installed is.

In einer besonders vorteilhaften baulichen Ausgestaltung der Erfindung weist das Bauteil axial verlaufende Versteifungsrippen auf, die den auf das Bauteil wirkenden Kräften entgegenwirken.In a particularly advantageous construction of the Invention has the component axially extending stiffening ribs which counteract the forces acting on the component.

Um eine Vereinfachung der Montage der Halterung zu ermöglichen, sieht eine bevorzugte Ausgestaltung der Erfindung vor, daß die Montage an die Zylinderkopfhaube mittels der ohnehin für die Befestigung der Zylinderkopfhaube am Zylinderkopf der Brennkraftmaschine benötigten Befestigungsschrauben erfolgt.In order to simplify the assembly of the bracket, A preferred embodiment of the invention provides that the Mounting on the cylinder head cover using the anyway for the Fastening the cylinder head cover to the cylinder head of the internal combustion engine required fastening screws.

Weitere Ausgestaltungen und Vorteile der Erfindung gehen aus den übrigen Unteransprüchen und der Beschreibung hervor.Further configurations and advantages of the invention go out the other subclaims and the description.

In der einzigen Figur ist im folgenden ein Ausführungsbeispiel mit weiteren Einzelheiten näher erläutert. Sie zeigt eine erfindungsgemäße Halterung einer Abgasrückführleitung 1 am Motorgehäuse 2 einer teilweise dargestellten Brennkraftmaschine, die einen Zylinderkopf 3 und eine am Zylinderkopf 3 befestigte Zylinderkopfhaube 4 umfaßt.In the single figure is an embodiment in the following explained in more detail with further details. It shows an inventive Holding an exhaust gas recirculation line 1 on the engine housing 2 of a partially illustrated internal combustion engine, the a cylinder head 3 and a cylinder head cover attached to the cylinder head 3 4 includes.

Die Abgasrückführleitung 1 ist zweiteilig ausgebildet und umfaßt einen ersten Leitungsteil 5, der mittels einer Rohrschelle 6 dichtend mit einem zweiten Leitungsteil 7 verbunden ist. Der erste Leitungsteil 5 der Abgasrückführleitung 1 zweigt von einem motornahen Abgasrohr 8 ab, das in einen Sammelraum 9 eines Abgaskrümmers 10 mündet, welcher über Abgasleitungen 11 an einer Auslaßseite 3a des Zylinderkopfes 3 der Brennkraftmaschine angeflanscht ist. Das an das erste Leitungsteil 5 anschließende zweite Leitungsteil 7 steht über eine Flanschverbindung 12 mit einem Mischgehäuse 13 in Verbindung, welches wiederum mit einer Ansaugleitung 14 der Brennkraftmaschine verbunden ist.The exhaust gas recirculation line 1 is formed in two parts and includes a first line part 5, which is by means of a pipe clamp 6 is sealingly connected to a second line part 7. Of the first line part 5 of the exhaust gas recirculation line 1 branches from one Exhaust pipe 8 close to the engine, which in a collecting space 9 a Exhaust manifold 10 opens, which via exhaust pipes 11 at a Exhaust side 3a of the cylinder head 3 of the internal combustion engine is flanged. That connecting to the first line part 5 second line part 7 is connected via a flange connection 12 a mixing housing 13 in connection, which in turn with a Intake line 14 of the internal combustion engine is connected.

Die Ansaugleitung 14 ist Bestandteil eines an einer Einlaßseite 3b des Zylinderkopfes 3 angeflanschten Saugmodules 15. Das Saugmodul 15 erstreckt sich in Richtung einer Motorlängsachse 23 im wesentlichen über die gesamte Länge des Zylinderkopfes 3 und in etwa parallel zur Richtung einer Motorhochachse 24.The suction line 14 is part of a on an inlet side 3b of the cylinder head 3 flanged intake module 15. Das Suction module 15 extends in the direction of an engine longitudinal axis 23 essentially over the entire length of the cylinder head 3 and approximately parallel to the direction of a motor vertical axis 24.

Das Mischgehäuse 13 weist eine erste, über eine Oberseite 15a des Saugmoduls 15 hinausragende Unterdruckdose 16 auf, die ein im Mischgehäuse 13 angeordnetes Abgasrückführventil steuert. Das Mischgehäuse 13 weist Anschlüsse 17 zum Anschluß einer zweiten, hier nicht dargestellten Unterdruckdose auf, welche eine ebenfalls im Mischgehäuse 13 angeordnete Drosselklappe steuert.The mixing housing 13 has a first, via an upper side 15a of the suction module 15 protruding vacuum box 16, the one Exhaust gas recirculation valve arranged in the mixing housing 13 controls. The mixing housing 13 has connections 17 for connecting one second vacuum box, not shown here, which a throttle valve also arranged in the mixing housing 13 controls.

Die Abgasrückführungsleitung 1 ist in ihrem Verlauf über eine motorfeste Stütze 18 an der Brennkraftmaschine gehalten, wobei erfindungsgemäß der zweite Leitungsteil 7 der Abgasrückführungsleitung 1 mit der Stütze 18 zu einem Bauteil 19 ausgebildet ist. Das Bauteil 19 ist vorzugsweise durch ein Gußteil gebildet und weist axial verlaufende Versteifungsrippen 22 auf. Im Bereich der Stütze 18 weist das Bauteil 19 einen einstückig angeformten Befestigungsflansch 20 auf und ist über diesen Flansch 20 mittels Befestigungschrauben 21 an der Zylinderkopfhaube 4 der Brennkraftmaschine befestigt.The exhaust gas recirculation line 1 is in its course over a engine-fixed support 18 held on the internal combustion engine, wherein according to the invention, the second line part 7 of the exhaust gas recirculation line 1 with the support 18 to form a component 19 is. The component 19 is preferably formed by a cast part and has axially extending stiffening ribs 22. In the area of the support 18, the component 19 has one piece molded mounting flange 20 and is over this Flange 20 using fastening screws 21 on the cylinder head cover 4 attached to the internal combustion engine.

Der nur zum Teil dargestellte Motor wird in schräger Lage eingebaut, wodurch der Schwerpunkt des Saugmoduls 15 in Richtung der Motorhochachse 24 betrachtet, in etwa seitlich über der Zylinderkopfhaube 4 liegt. Aufgrund der schrägen Einbaulage des Motors wirkt auf das Saugmodul 15 nebst Mischgehäuse 13 ein Moment, dem die mit dem Saugmodul 15 verbundene Halterung entgegenwirkt. Das die Halterung ausbildende Bauteil 19 dient somit nicht nur zur Abgasrückführung, sondern auch gleichzeitig zur Abstützung des Mischgehäuses 13 und des Saugmoduls 15.The motor, which is only partially shown, is installed in an inclined position, whereby the focus of the suction module 15 in the direction the engine vertical axis 24 viewed, approximately laterally above the cylinder head cover 4 lies. Due to the inclined position of the Motors acts on the suction module 15 together with the mixing housing 13 for a moment, which counteracts the holder connected to the suction module 15. The component 19 forming the holder thus serves not only for exhaust gas recirculation, but also at the same time Supporting the mixing housing 13 and the suction module 15.

In einer weiteren Ausgestaltung der Erfindung wäre vorstellbar, daß die Befestigungsschrauben 21 zur Befestigung der Halterung bzw. des Bauteils 19 an der Zylinderkopfhaube 4 gleichzeitig zur Befestigung der Zylinderkopfhaube 4 am Zylinderkopf 3 der Brennkraftmaschine dienen, so daß separate Schrauben entfallen können.In a further embodiment of the invention, it would be conceivable that the fastening screws 21 for fastening the bracket or the component 19 on the cylinder head cover 4 at the same time for attaching the cylinder head cover 4 to the cylinder head 3 Serve internal combustion engine so that separate screws are omitted can.

Claims (7)

Halterung einer Abgasrückführleitung am Motorgehäuse einer Brennkraftmaschine, wobei die Abgasrückführleitung von einem motornahen Abgasrohr abzweigt und mit einer Ansaugleitung der Brennkraftmaschine verbunden ist und wobei die Abgasrückführleitung in ihrem Verlauf über eine motorfeste Stütze an der Brennkraftmaschine gehalten ist,
dadurch gekennzeichnet,
daß zumindest ein Teil der Abgasrückführleitung (1) mit der Stütze (18) zu einem Bauteil (19) ausgebildet ist.Holding an exhaust gas recirculation line on the engine housing of an internal combustion engine, the exhaust gas recirculation line branching off from an exhaust pipe near the engine and being connected to an intake line of the internal combustion engine, and the course of the exhaust gas recirculation line being held on the engine by a support that is fixed to the engine,
characterized,
that at least part of the exhaust gas recirculation line (1) is formed with the support (18) to form a component (19). Halterung einer Abgasrückführleitung einer Brennkraftmaschine nach Anspruch 1,
dadurch gekennzeichnet,
daß die Stütze (18) an einer Zylinderkopfhaube (4) der Brennkraftmaschine befestigt ist.Holding an exhaust gas recirculation line of an internal combustion engine according to claim 1,
characterized,
that the support (18) is attached to a cylinder head cover (4) of the internal combustion engine. Halterung einer Abgasrückführleitung einer Brennkraftmaschine nach Anspruch 1,
dadurch gekennzeichnet,
daß die Abgasrückführleitung (1) mit einem Abgaskrümmer (10) und über ein Mischgehäuse (13) mit einem Saugmodul (15) verbunden ist.Holding an exhaust gas recirculation line of an internal combustion engine according to claim 1,
characterized,
that the exhaust gas recirculation line (1) is connected to an exhaust manifold (10) and via a mixing housing (13) to a suction module (15). Halterung einer Abgasrückführleitung einer Brennkraftmaschine nach Anspruch 1,
dadurch gekennzeichnet,
daß das Bauteil (19) zur Abstützung des Mischgehäuses (13) und des Saugmoduls (15) dient. Holding an exhaust gas recirculation line of an internal combustion engine according to claim 1,
characterized,
that the component (19) serves to support the mixing housing (13) and the suction module (15). Halterung einer Abgasrückführleitung einer Brennkraftmaschine nach Anspruch 1 oder 4,
dadurch gekennzeichnet,
daß das Bauteil (19) durch ein Gußteil gebildet ist.Holding an exhaust gas recirculation line of an internal combustion engine according to claim 1 or 4,
characterized,
that the component (19) is formed by a casting. Halterung einer Abgasrückführleitung einer Brennkraftmaschine nach einem der Ansprüche 1, 4 oder 5,
dadurch gekennzeichnet,
daß das Bauteil (19) axial verlaufende Versteifungsrippen (22) aufweist.Holding an exhaust gas recirculation line of an internal combustion engine according to one of claims 1, 4 or 5,
characterized,
that the component (19) has axially extending stiffening ribs (22). Halterung einer Abgasrückführleitung einer Brennkraftmaschine nach einem der Ansprüche 1 oder 4 bis 6,
dadurch gekennzeichnet,
daß Befestigungsschrauben (21) zur Befestigung des Bauteils (19) an der Zylinderkopfhaube (4) vorgesehen sind, die gleichzeitig zum Befestigen der Zylinderkopfhaube (4) an einem Zylinderkopf (3) der Brennkraftmaschine dienen.Holding an exhaust gas recirculation line of an internal combustion engine according to one of claims 1 or 4 to 6,
characterized,
that fastening screws (21) for fastening the component (19) to the cylinder head cover (4) are provided, which at the same time serve to fasten the cylinder head cover (4) to a cylinder head (3) of the internal combustion engine.
EP97121920A 1997-01-21 1997-12-12 Structure for supporting the exhaust gas recirculation conduit on the engine Expired - Lifetime EP0857869B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19701873 1997-01-21
DE19701873A DE19701873C1 (en) 1997-01-21 1997-01-21 Retainer for exhaust gas recirculation conduit

Publications (3)

Publication Number Publication Date
EP0857869A1 true EP0857869A1 (en) 1998-08-12
EP0857869B1 EP0857869B1 (en) 2001-11-14
EP0857869B2 EP0857869B2 (en) 2004-03-17

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EP97121920A Expired - Lifetime EP0857869B2 (en) 1997-01-21 1997-12-12 Structure for supporting the exhaust gas recirculation conduit on the engine

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US (1) US5988148A (en)
EP (1) EP0857869B2 (en)
DE (2) DE19701873C1 (en)
ES (1) ES2167669T3 (en)

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Also Published As

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US5988148A (en) 1999-11-23
ES2167669T3 (en) 2002-05-16
DE59705381D1 (en) 2001-12-20
EP0857869B1 (en) 2001-11-14
DE19701873C1 (en) 1998-06-04
EP0857869B2 (en) 2004-03-17

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