EP0731258B1 - Collecteur d'échappement - Google Patents

Collecteur d'échappement Download PDF

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Publication number
EP0731258B1
EP0731258B1 EP96102547A EP96102547A EP0731258B1 EP 0731258 B1 EP0731258 B1 EP 0731258B1 EP 96102547 A EP96102547 A EP 96102547A EP 96102547 A EP96102547 A EP 96102547A EP 0731258 B1 EP0731258 B1 EP 0731258B1
Authority
EP
European Patent Office
Prior art keywords
flange
pipes
manifold
exhaust manifold
cylinder
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
EP96102547A
Other languages
German (de)
English (en)
Other versions
EP0731258A1 (fr
Inventor
Klaus Krüger
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.)
Friedrich Boysen GmbH and Co KG
Original Assignee
Friedrich Boysen GmbH and Co KG
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 Friedrich Boysen GmbH and Co KG filed Critical Friedrich Boysen GmbH and Co KG
Publication of EP0731258A1 publication Critical patent/EP0731258A1/fr
Application granted granted Critical
Publication of EP0731258B1 publication Critical patent/EP0731258B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
    • F01N13/102—Other arrangements or adaptations of exhaust conduits of exhaust manifolds having thermal insulation

Definitions

  • the invention is based on an air-gap-insulated exhaust manifold for Internal combustion engines according to the preamble of claim 1.
  • the invention has for its object one in fluidic and manufacturing technology improved exhaust manifold create.
  • the invention proposes a manifold with features mentioned in claim 1. Developments of the invention are the subject of subclaims.
  • the invention therefore proposes that in a case with three cylinder tubes it is provided that the first two cylinder tubes are brought together in parallel are and with an axially aligned intermediate header get connected.
  • This intermediate header pipe can then be used the third cylinder tube in turn aligned and merged then a connection, for example by plugging in, with the header pipe running in the same direction.
  • the intermediate manifold when the intermediate manifold is brought together with the third cylinder tube the intermediate manifold a double as large a cross section as the cylinder tube since it is the gas flow from two cylinder tubes.
  • the first two cylinder tubes are like this shaped so that in its end region the direction of the intermediate header exhibit. This curvature, for example by 90 °, can be so take place that a gradual deflection of the gas jet is effected. In its end area, that is, when the gas flows into the intermediate manifold, the gases are already in the same direction as the intermediate manifold, so that there are no one-sided local impacts on wall parts.
  • the making of holes in the wall of the intermediate header omitted, since the first two cylinder tubes axially in there anyway Opened intermediate header pipe inserted or connected to it become.
  • the one another adjacent merged ends of the cylinder tubes along one especially abut a flat surface.
  • the invention proposes that the cross section through the merged Ends of the first two cylinder tubes each with a semicircle, can correspond to a semi-oval or another semi-shape. If for example, the intermediate header pipe has a circular cross section has, contain the first two cylinder tubes in their end region a semicircular cross section. With an oval intermediate header pipe the cross section would accordingly have the shape of a have half oval.
  • the intermediate header pipes secured against slipping by lugs, bulges or projections be, these are arranged so that temperature expansions are still possible.
  • End of cylinder tubes is especially in the case of air gap insulated Exhaust manifolds applicable in which the gas-bearing inner pipe system is arranged within an outer shell, which with the cylinder flange and connected to the collecting flange, in particular welded is.
  • the connection between the cylinder tubes, the manifold and the intermediate manifolds by simple Plug in because gas tightness is no longer required.
  • the exhaust manifold shown in Fig. 1 includes a flange 1 which in its left part in Fig. 1, which is about two thirds of the total length extends as a cylinder flange 2 is formed. In his mind of it right adjoining Part of the flange 1 is then designed as a collecting flange 3.
  • Starting from the cylinder flange 2 are three cylinder tubes 4 attached to the flange, for example by welding. Each cylinder tube 4 has an opening in the cylinder flange 2 in connection so that the through the opening of the Flange 2 passing gas jet through the corresponding Cylinder tube 4 is derived.
  • the cylinder tubes 4 are approximately on the cylinder flange 2 attached at right angles and extend from there on over a quarter arch in one direction that essentially parallel or slightly oblique to the surface of the flange 1 runs.
  • the first cylinder tube on the far left in FIG. 1, extends to beyond the second cylinder tube 4, the two first cylinder tubes 4 abut each other and in their End regions 5 run parallel to each other. Both end areas 5 of the first two cylinder tubes 4 are in an intermediate header tube 6 inserted, the axis of which is the same direction has as the end regions 5 of the cylinder tubes 4. It occurs So in the intermediate header 6 no deflection of the two the two cylinder tubes 4 emerging gas jets.
  • the intermediate header 6 then continues approximately straight up to the also coaxially aligned manifold 7th
  • the third cylinder tube 4 which also has a quarter arc is curved, is parallel in its end region to the end region of the intermediate header 6 and lies with his wall on this. It is next to the intermediate header 6 inserted horizontally into the end of the collecting tube 7, so that both the gas jet emerging from the intermediate header 6 as well as the gas jet from the cylinder tube 4 when entering run parallel to each other in the collecting tube 7.
  • the Collecting tube 7 now picks up and directs all gas jets over the sheet 8 at its end to the as Collective flange acting part 3 of the flange.
  • an outer shell for example in the form of a hood, arranged around with the flange 1 is welded gas-tight.
  • Fig. 2 shows in its right half a section through the Arrangement of Fig. 1 along the line B-B, i.e. H. at the Point at which the end regions 5 of the two cylinder tubes 4 into the intermediate collecting tube with a circular cross-section open out.
  • the cross section of the two end regions 5 corresponds to a semicircle, with a flat one Partition between the two walls that are close together issue.
  • the intermediate header 6 is a close fit created around the two end regions 5.
  • Both end areas 5 of the first two cylinder tubes 4 have the same Cross-sectional shape and the same cross-sectional size. From there the same amount of gas flows out of both cylinder tubes this way an equal speed of the two Gas flows reached when entering the intermediate header 6.
  • Fig. 2 shows on the left a cross section through the arrangement along the line A-A.
  • the end region 5 opens at this point of the third cylinder tube 4 together with the end region of the Intermediate header tube 6 in the header tube 7.
  • the End region of the intermediate header tube 6 along a plane Partition surface at the end region of the third cylinder tube 4.
  • the cross section of the intermediate header tube 6 is approximately twice as large as the cross section of the cylinder tube 4 since from the intermediate header 6 the gas flow from the two first cylinder tubes 4 emerges.
  • FIG. 3 shows corresponding representations in an exhaust system, in which both the header pipe and the intermediate header pipe 6 has an oval cross section.
  • Fig. 4 shows a longitudinal section through part of a Arrangement on an enlarged scale.
  • the cylinder flange 2 has a plurality of openings 10 already mentioned, from which the exhaust gases from the internal combustion engine escape.
  • every opening 10 is the end of a cylinder tube 4 assigned to the engine used and welded.
  • the opposite ends 5 of the first two cylinder tubes 4 are in the intermediate header 6 inserted.
  • the two ends 5 of the first two Cylinder tubes 4 are neither with each other nor with the intermediate header 6 welded or soldered, so that due to the Eliminating such a connection further reduced costs can be.
  • the first cylinder tube 4 contains just before its end portion 5 has an outward projection Shape of a bead 11, for example, over a Extends part of its circumference.
  • the intermediate header 6 together with the third cylinder tube 4 in the manifold 7 inserted.
  • the intermediate header pipe 6 contains the intermediate header pipe 6 a bead 12 corresponding to the bead 11 Distance of the bead 12 from the associated end edge of the Intermediate manifold 6 is chosen so that thermal stresses can be included.
  • the two beads 11, 12 are intended to prevent the intermediate collecting tube from slipping off 7 for temperature changes and for Prevent vibrations.
  • Fig. 6 shows again the arrangement of Fig. 1, this time an outer shell 13 is broken off at the ends of the flange 1 is shown, along the edge of the flange 1 with this is welded.
  • the flange 13 can also have holes 14, which have corresponding connection holes 15 of flange 1 match.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Claims (7)

  1. Collecteur d'échappement isolé par un espace d'air, avec une bride cylindrique (2) pour la fixation du collecteur sur une culasse, une bride collective (3) pour le raccordement d'un tuyau de transmission, une coque extérieure (13), qui est reliée à la bride cylindrique (2) et à la bride collective (3), et avec un système de tuyau intérieur véhiculant du gaz à l'intérieur de la coque extérieure (13), qui présente un tuyau collecteur (7) relié à la bride collective (3) et au moins trois tuyaux cylindriques (4) reliés à la bride cylindrique (2),
       caractérisé en ce que
       les extrémités (5) des deux premiers tuyaux cylindriques (4) s'étendent parallèlement entre elles,
       sont disposées de façon contiguë et sont reliées à un tuyau collecteur intermédiaire (6) orienté axialement, en particulier emboíté dans ce tuyau, lequel est agencé de façon parallèle au troisième tuyau cylindrique (4) dans la zone d'extrémité et est contigu à celui-ci et est regroupé avec celui-ci dans la zone d'extrémité et est relié au tuyau collecteur (7) ou un autre tuyau collecteur intermédiaire, en particulier est emboíté dans celui-ci.
  2. Collecteur d'échappement selon la revendication 1, sur lequel les extrémités (5) regroupées et contiguës des tuyaux cylindriques (4) se touchent le long d'une surface en particulier plane.
  3. Collecteur d'échappement selon la revendication 1 ou 2, sur lequel la section transversale dans les extrémités (5) regroupées des deux premiers tuyaux cylindriques (4) correspond à peu près à un demi-cercle ou à un demi-ovale.
  4. Collecteur d'échappement selon l'une quelconque des revendications précédentes, sur lequel les tuyaux collecteurs intermédiaires (6) sont maintenus entre des parties saillantes (11, 12) ou des parties bosselées.
  5. Collecteur d'échappement selon l'une quelconque des revendications précédentes, sur lequel le tuyau collecteur (7) et/ou les tuyaux collecteurs intermédiaires (6) présentent une section transversale correspondant à la section transversale commune des tuyaux cylindriques (4) regroupés.
  6. Collecteur d'échappement selon l'une quelconque des revendications précédentes, sur lequel le partage de section transversale des tuyaux collecteurs intermédiaires (6) et/ou du tuyau collecteur (7) correspond au nombre des tuyaux cylindriques (4) regroupés.
  7. Collecteur d'échappement selon l'une quelconque des revendications précédentes, sur lequel les tuyaux cylindriques (4), le tuyau collecteur (7) et les tuyaux collecteurs intermédiaires (6) sont reliés entre eux par emboítement.
EP96102547A 1995-03-03 1996-02-21 Collecteur d'échappement Expired - Lifetime EP0731258B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19507439A DE19507439A1 (de) 1995-03-03 1995-03-03 Auspuffkrümmer
DE19507439 1995-03-03

Publications (2)

Publication Number Publication Date
EP0731258A1 EP0731258A1 (fr) 1996-09-11
EP0731258B1 true EP0731258B1 (fr) 2002-09-04

Family

ID=7755538

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96102547A Expired - Lifetime EP0731258B1 (fr) 1995-03-03 1996-02-21 Collecteur d'échappement

Country Status (4)

Country Link
EP (1) EP0731258B1 (fr)
AT (1) ATE223556T1 (fr)
DE (2) DE19507439A1 (fr)
ES (1) ES2178683T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19917604C5 (de) * 1998-04-20 2009-09-10 Honda Giken Kogyo K.K. Wärmeisolierter Abgaskrümmer
WO2025083079A1 (fr) * 2023-10-17 2025-04-24 Rolls-Royce Solutions GmbH Dispositif d'écoulement, moteur à combustion interne et procédé de fusion de deux écoulements de fluide au moyen d'un dispositif d'écoulement de ce type

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19957979B4 (de) * 1999-12-02 2006-08-10 Audi Ag Abgaskrümmer
DE10219269A1 (de) * 2002-04-30 2003-11-20 Zeuna Staerker Kg Zweischalige, luftspaltisolierte Abgaszusammenführung und Verfahren zu deren Herstellung
DE10261879B4 (de) * 2002-12-20 2012-09-27 Volkswagen Ag Abgassammelrohr
DE602004006698T2 (de) * 2003-12-01 2007-10-04 Nissan Motor Co., Ltd., Yokohama Abgaskrümmer für eine Brennkraftmaschine
DE102009001542A1 (de) 2009-03-13 2010-10-07 Ford Global Technologies, LLC, Dearborn Zylinderkopf für einen Saugmotor und Verwendung eines derartigen Zylinderkopfes
USD812100S1 (en) 2015-03-31 2018-03-06 Litchfield Imports Limited Exhaust manifold
CN114135380B (zh) * 2022-01-27 2023-01-06 潍柴动力股份有限公司 一种排气歧管

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2344863A (en) * 1942-04-09 1944-03-21 Continental Motors Corp Internal combustion engine
US3043094A (en) * 1960-02-29 1962-07-10 Alco Products Inc Exhaust manifolds
JPH01138311A (ja) * 1987-11-24 1989-05-31 Mazda Motor Corp エンジンの排気通路構造
WO1992003639A1 (fr) * 1990-08-13 1992-03-05 Flowmaster, Inc. Ensemble de collecteur pour moteur a combustion interne et procede
JP2632601B2 (ja) * 1991-02-18 1997-07-23 株式会社ユタカ技研 排気管
DE4226171A1 (de) * 1992-08-07 1994-02-10 Bischoff Erhardt Gmbh Co Kg Abgaskrümmer
US5299419A (en) * 1992-11-02 1994-04-05 Bittle James J Gas flow headers for internal combustion engines
DE4342572C1 (de) * 1993-12-14 1994-11-24 Mtu Friedrichshafen Gmbh Abgasanlage für eine aufgeladene Brennkraftmaschine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19917604C5 (de) * 1998-04-20 2009-09-10 Honda Giken Kogyo K.K. Wärmeisolierter Abgaskrümmer
WO2025083079A1 (fr) * 2023-10-17 2025-04-24 Rolls-Royce Solutions GmbH Dispositif d'écoulement, moteur à combustion interne et procédé de fusion de deux écoulements de fluide au moyen d'un dispositif d'écoulement de ce type

Also Published As

Publication number Publication date
DE19507439A1 (de) 1996-09-05
ATE223556T1 (de) 2002-09-15
ES2178683T3 (es) 2003-01-01
DE59609613D1 (de) 2002-10-10
EP0731258A1 (fr) 1996-09-11

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