EP0860591B1 - Verfahren zur Herstellung eines luftspaltisolierten Abgaskrümmers - Google Patents
Verfahren zur Herstellung eines luftspaltisolierten Abgaskrümmers Download PDFInfo
- Publication number
- EP0860591B1 EP0860591B1 EP98102185A EP98102185A EP0860591B1 EP 0860591 B1 EP0860591 B1 EP 0860591B1 EP 98102185 A EP98102185 A EP 98102185A EP 98102185 A EP98102185 A EP 98102185A EP 0860591 B1 EP0860591 B1 EP 0860591B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- inner pipe
- sections
- connection
- accordance
- inner tube
- 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
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
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
- F01N13/1811—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration
-
- 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
-
- 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
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4935—Heat exchanger or boiler making
- Y10T29/49393—Heat exchanger or boiler making with metallurgical bonding
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49398—Muffler, manifold or exhaust pipe making
Definitions
- the invention relates to a method for producing a Air gap-insulated exhaust manifold according to the preamble of the claim 1.
- the exhaust manifold there is made up of three inner pipe sections, as well as a lower and an upper shell that the outer shell form, composed.
- the inner tube sections which consisting of a 90 ° elbow, a T-piece and a header pipe exist in the order given in the Production line with sliding seat inserted into each other, the T-piece with one end of its crossbeam with the two other pipe sections is connected. Not with each other connected ends of the pipe sections are parallel to each other in one level and each have flanges for screwing to a cylinder head of an internal combustion engine.
- the inner tube sections are in plug-in position inserted into the lower shell, whereupon the upper shell these put on and by means of a machine-controlled die is pressed. Then the inner tube sections welded to the outer shell at the mouth openings, wherein the centering is retained. Then the upper shell with the lower shell welded to the edges.
- the areas of overlap of the inner tube sections are in their Longitudinal extension through the dimensions of the section ends in generally short, which makes the sections in the outer shell relatively are movable and in particular the pipe bend is unhindered can detach from this.
- the degree of looseness significantly from the manufacturing tolerances of the inner tube sections depends in the radial direction, it can happen that due to vibration of the parts during assembly, for example when manually placing the top shell on the Lower shell and the subsequent mechanical pressing, as well by the centrifugal forces in the swiveling movement of the Rotary table during the transfer of the assembly part from the assembly occur to the welding station, the inner tube sections move, which can detach the connectors.
- the invention has for its object a generic To further develop methods so that in a simple manner both a sliding fit of the nested inner tube sections as well as the formation of a uniform air gap insulation the inner tube sections after completion of the production the exhaust manifold is always guaranteed.
- the inner tube remains with this weld centered immovably in the outer shell and with respect to one perfectly functioning sliding seat between the inner tube sections permanently optimally aligned. So that a sliding seat is achieved, the rigid connector after the Welding can be loosened. This will be advantageous simply by exposure to heat, under which the Lanyard that previously ensured the rigid connection dissolves.
- the inner tube - assembled separately - as a pre-assembled unit be delivered to the production line, reducing production time is saved. The pre-assembled unit must then just inserted and welded to the outer shell become.
- the inner tube 2 in turn consists of three sections, a Y-shaped Collecting pipe section 4, a T-piece 5 and a 90 ° elbow 6.
- the T-bar of the T-piece 5 forms on the pipe bend side with its end 7 the sliding seat mount for the one facing it end 8 of the pipe bend 6 inserted in it.
- To the other Side is the end 9 of the T-beam in the sliding seat holder 10 of the header piece 4 inserted, these formed by one end of the fork of the Y-shape of the pipe section 4 is.
- the other end 11 of the fork, the free end 12 of the T-piece 5 and the free end 13 of the pipe bend 6 are mutually aligned parallel in one plane.
- the ends 11, 12 and 13 are at their mouth openings 14 which is composed of a lower shell 15 and an upper shell Outer shell 3, only representative here the lower shell 15 is shown, forming a fillet weld welded.
- the orifices 14 are for this purpose adjacent outlet openings 16 of the outer shell 3 set back.
- Inlet flanges 17 are welded to them, with which the exhaust manifold 1 to a cylinder head an internal combustion engine is screwed.
- the outer shell 3 carries an output flange 19 on which an exhaust line an exhaust system can be attached gas-tight.
- a slotted spacer ring in the area of the sliding seat 20 postponed, by means of which the put together Inner tube 2 is centered in the outer shell 3, with an almost uniformly running heat insulating gap 21 between the Inner tube 2 and the outer shell 3 is formed.
- the spacer rings 20 align the inner tube sections 4,5,6 with each other to avoid any eventual occurrence in later driving To avoid misjudging, however, is the production of such Spacer rings 20 are also subject to tolerances, so that the probability optimal alignment is low. moreover there must be some play around the inner tube sections 4,5,6 stuck together and to form a To ensure sliding fit.
- the spacer rings 20 consist of a heat-volatile material, preferably made of polyethylene, making the spacer rings 20 after the inner tube 2 has been exposed to hot exhaust gas decompose and / or burn.
- a heat-volatile material preferably made of polyethylene, making the spacer rings 20 after the inner tube 2 has been exposed to hot exhaust gas decompose and / or burn.
- the between Inner tube 2 and outer shell 3 due to the two-sided Installation of the respective spacer 20 undesirable heat transfer prevented and on the other hand the ends 8.9 are released, after which the pipe bend 6 and the T-piece 5 there accordingly the heat load can expand freely.
- a connecting means (in this embodiment not shown) used this by generation a frictional connection between the two plug-in partners rigid designed, creating a precisely defined arrangement of the two Plug partners to each other is made possible.
- the lanyard can be an adhesive strip in the respective recording 7.10 of the inner tube sections 4.5 is attached circumferentially and from a material with the same properties regarding Heat acts like the spacer rings 20. The non-positive Connection is made when the Inner tube sections 4,5,6.
- the connecting means from a elastic cuff is formed on the receiving end 7, 10 of one inner tube section 4, 5 is pushed on.
- the end to be inserted 8.9 of the other inner tube section 5,6 is pushed through the cuff, both pushing the sleeve onto an inner tube section 4, 5 as well as pushing the end to be inserted 8.9 of other inner tube section 5.6 by the sleeve friction he follows.
- This can consist of a rubber-like, Rigid and heat-volatile material exists and is present the respective plug-in partner closely. Axial movements of the Plug partners are compensated elastically, after which these always be returned to their original plug position.
- the spacer rings 20 are only in terms of centering supportive for the respective lanyard.
- FIG. 2 the ends 7, 8 and the end 9 and the sliding seat receptacle 10 rigidly with each other via a respectively pushed-on sleeve 22 connected, which consists of a heat-volatile material and after initially loosely applied under the influence of heat on the ends 7,8 or end 9 and sliding seat receptacle 10 shrunk becomes.
- Due to the circumferential uniform thickness of the cuff 22 is the inner tube 2 in the outer shell 3 when inserting automatically centered in these, with the Insulating gap 21 sets.
- the inner tube sections 4,5,6 is the gap-forming function of the Spacer rings 20 virtually integrated, which can be omitted.
- the spacer rings 20 however, in other areas of the inner tube 2, advantageously be arranged in the region of the knee of the pipe bend 6.
- the cuff 22 can also be a piece of tubing.
- the inner tube 2 can be optimally centered when it is inserted into the lower shell 15 automatically, for example, by radial protruding spacer beads suitably arranged on the circumference Cuff 22 take place, the support of the cuff 22 in the lower shell 15 is minimized, causing surface unevenness the otherwise shrunken ones lying on a large surface Cuff 22 and manufacturing tolerances of the lower shell 15 for the centering of the inner tube 2 is no longer important.
- the inner tube 2 is inserted into the lower shell 15, positioned and the upper shell placed on the lower shell 15.
- a die then presses on the top shell, after which it fits snugly sits on the lower shell 15.
- the on a Round table assembly of a welding station (Welding robot) by swiveling the rotary table.
- the station is at the mouth openings 14 of the inner tube 2nd this with the formation of a fillet weld on the outer shell 3 on the inside all around laser welded.
- the Input flanges 17 on the ends 11, 12, 13 of the inner tube sections 4,5,6 and the output flange 19 on the end 18 of the Collected pipe piece 4 inserted and also laser welded.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Description
Claims (9)
- Verfahren zur Herstellung eines luftspaltisolierten Abgaskrümmers (1), welcher aus einem sich aus einzelnen Abschnitten (4,5,6) zusammensetzenden abgasführenden Innenrohr (2) und einer in Ober- und Unterschale (15) geteilten, dem Verlauf des Innenrohres (2) entsprechend ausgebildeten Außenschale (3) besteht, wobei die Innenrohrabschnitte (4,5,6), von denen zumindest einer als Rohrbogen (6) ausgebildet ist, ineinandergesteckt werden und bei denen der Innendurchmesser des jeweiligen Aufnahmeendes (7,10) des einen Rohrabschnittes (4,5) größer ist als der Außendurchmesser des in dieses Aufnahmeende (7,10) einzusteckenden Rohrabschnittendes (8,9) des anderen Rohrabschnittes (5,6), als ein Zusammenbauteil in die Unterschale (15) der Außenschale (3) zentriert eingelegt werden, wobei dann die Oberschale auf die Unterschale (15) aufgelegt und an dieser angedrückt wird, und wobei anschließend die Verschweißung von Ober- und Unterschale (15) und der Innenrohrabschnitte (4,5,6) mit der Außenschale (3) im Bereich deren Austrittsöffnungen (16) erfolgt,
dadurch gekennzeichnet, daß die Innenrohrabschnitte (4,5,6) vor dem Einlegen des Innenrohres (2) in die Unterschale (15) miteinander mittels jeweils eines Verbindungsmittels (22) aus hitzeflüchtigem Material kraftschlüssig verbunden werden, wobei das Verbindungsmittel (22) nach der Verschweißung der Ober- und Unterschale (15) mit den Innenrohrabschnitten (4,5,6) durch Einwirkung von Hitze aufgelöst wird. - Verfahren nach Anspruch 1,
dadurch gekennzeichnet, daß die Auflösung des Verbindungsmittels (22) durch Einwirkung der Abgaswärme erfolgt. - Verfahren nach Anspruch 1,
dadurch gekennzeichnet, daß die kraftschlüssige Verbindung beim Einstecken der Innenrohrabschnitte (4,5,6) erfolgt. - Verfahren nach Anspruch 1,
dadurch gekennzeichnet, daß die kraftschlüssige Verbindung nach dem Einstecken der Innenrohrabschnitte (4,5,6) durch Umwickeln der Steckverbindung mittels eines das Verbindungsmittel bildenden verklebend wirkenden Bandes erfolgt. - Verfahren nach Anspruch 1,
dadurch gekennzeichnet, daß auf das Aufnahmeende (7,10) des einen Innenrohrabschnittes (4,5) eine das Verbindungsmittel bildende elastische Manschette (22) aufgeschoben wird, wonach die Innenrohrabschnitte (4,5,6) ineinandergesteckt werden, wobei beim Ineinandersstecken das einzusteckende Ende (8) des Innenrohrabschnittes (6) in das Aufnahmeende (7) des anderen Innenrohrabschnittes (5) und das einzusteckende Ende (9) des anderen Innenrohrabschnittes (4) durch die Manschette (22) hindurchgeschoben wird. - Verfahren nach Anspruch 5,
dadurch gekennzeichnet, daß sowohl das Aufschieben der Manschette (22) auf den einen Innenrohrabschnitt (4,5) als auch das Hindurchschieben des einzusteckenden Endes (8,9) des anderen Innenrohrabschnittes (5, 6) durch die Manschette (22) reibschlüssig erfolgt. - Verfahren nach Anspruch 5,
dadurch gekennzeichnet, daß die Manschette (22) in Stecklage der ineinandergesteckten Innenrohrabschnitte (4,5,6) durch Wärmeeinwirkung auf diese aufgeschrumpft wird. - Verfahren nach Anspruch 1,
dadurch gekennzeichnet, daß auf die Innenrohrabschnitte (5,6) vereinzelt geschlitzte Distanzringe (20) aus einem unter Hitzeeinwirkung sich auflösenden Material gesteckt werden, mittels derer die Zentrierung der Abschnitte (4,5,6) erfolgt. - Verfahren nach Anspruch 5,
dadurch gekennzeichnet, daß die Innenrohrabschnitte (4,5,6) selbsttätig durch radial abstehende Distanzwulste der Manschette (22) beim Einlegen in die Unterschale (15) zentriert werden.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19706386A DE19706386B4 (de) | 1997-02-19 | 1997-02-19 | Verfahren zur Herstellung eines luftspaltisolierten Abgaskrümmers |
| DE19706386 | 1997-02-19 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0860591A2 EP0860591A2 (de) | 1998-08-26 |
| EP0860591A3 EP0860591A3 (de) | 2001-03-14 |
| EP0860591B1 true EP0860591B1 (de) | 2002-11-27 |
Family
ID=7820726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98102185A Expired - Lifetime EP0860591B1 (de) | 1997-02-19 | 1998-02-09 | Verfahren zur Herstellung eines luftspaltisolierten Abgaskrümmers |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6038769A (de) |
| EP (1) | EP0860591B1 (de) |
| DE (2) | DE19706386B4 (de) |
| ES (1) | ES2186027T3 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103962806A (zh) * | 2014-05-15 | 2014-08-06 | 玉环凯贝利阀门有限公司 | 分水器连体出水口的加工工艺 |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19752773C2 (de) * | 1997-11-28 | 1999-09-02 | Daimler Chrysler Ag | Verfahren zur Herstellung eines luftspaltisolierten Abgaskrümmers einer Fahrzeugabgasanlage |
| US6425243B1 (en) * | 1999-05-10 | 2002-07-30 | Ford Global Tech., Inc. | Hybrid exhaust manifold for combustion engines |
| DE10102896B4 (de) * | 2001-01-23 | 2004-01-15 | Benteler Automobiltechnik Gmbh | Verfahren zur Herstellung eines Abgassammlers |
| US6581377B2 (en) * | 2001-07-20 | 2003-06-24 | Metaldyne Tubular Products, Inc. | Carburization of vehicle manifold flanges to prevent corrosion |
| DE10345829A1 (de) * | 2003-10-02 | 2005-04-21 | Daimler Chrysler Ag | Brennkraftmaschine mit Abgaskrümmer |
| US7305763B2 (en) * | 2005-07-26 | 2007-12-11 | Board Of Trustees Of Michigan State University | Hydroformed port liner |
| USD561079S1 (en) * | 2005-11-18 | 2008-02-05 | Workhorse Custom Chassis, Llc | Vehicle header |
| USD561078S1 (en) * | 2005-11-18 | 2008-02-05 | Workhorse Custom Chassis, Llc | Vehicle header |
| DE102006021674B4 (de) * | 2006-05-10 | 2014-05-15 | Tenneco Gmbh | Verfahren zum Herstellen von Abgaskrümmern |
| JP4670103B2 (ja) * | 2007-08-31 | 2011-04-13 | 本田技研工業株式会社 | 消音器構造 |
| DE102007062659A1 (de) * | 2007-12-24 | 2009-06-25 | J. Eberspächer GmbH & Co. KG | Abgassammler und zugehöriges Herstellungsverfahren |
| US9938940B2 (en) * | 2010-04-21 | 2018-04-10 | Ford Global Technologies, Llc | Intake manifold |
| JP2013213491A (ja) * | 2012-03-08 | 2013-10-17 | Calsonic Kansei Corp | 二重管式エキゾースト・マニホールド |
| US9790836B2 (en) | 2012-11-20 | 2017-10-17 | Tenneco Automotive Operating Company, Inc. | Loose-fill insulation exhaust gas treatment device and methods of manufacturing |
| DE102014103820A1 (de) * | 2014-03-20 | 2015-09-24 | Benteler Automobiltechnik Gmbh | Abgaskrümmer für eine Abgasanlage eines Verbrennungsmotors |
| US9422857B2 (en) | 2014-12-17 | 2016-08-23 | Caterpillar Inc. | Exhaust nozzle tip device and system |
| USD812100S1 (en) * | 2015-03-31 | 2018-03-06 | Litchfield Imports Limited | Exhaust manifold |
| USD853920S1 (en) * | 2017-05-30 | 2019-07-16 | Holley Performance Products, Inc. | Exhaust manifold |
| CN110900133B (zh) * | 2019-12-31 | 2020-12-04 | 绍兴依利奥厨具有限公司 | 一种油烟机的生产工艺 |
| USD1078795S1 (en) * | 2022-12-16 | 2025-06-10 | Eaton Intelligent Power Limited | Manifold |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4590652A (en) * | 1983-10-14 | 1986-05-27 | Apx Group Inc. | Method for fabricating an air gap pipe |
| US4656713A (en) * | 1985-10-24 | 1987-04-14 | Ap Industries, Inc. | Method for forming an air gap pipe |
| US5170557A (en) * | 1991-05-01 | 1992-12-15 | Benteler Industries, Inc. | Method of forming a double wall, air gap exhaust duct component |
| DE4437380A1 (de) * | 1994-01-07 | 1995-07-13 | Eberspaecher J | Luftspaltisoliertes Abgasrohr und Verfahren zu seiner Herstellung |
| EP0662564B2 (de) * | 1994-01-07 | 2001-09-26 | J. Eberspächer GmbH & Co. | Luftspaltisoliertes Abgasrohr und Verfahren zu seiner Herstellung |
| US5491883A (en) * | 1994-12-19 | 1996-02-20 | Ap Parts Manufacturing Co. | Method of manufacturing a non-linear composite tube |
| DE19511514C1 (de) * | 1995-03-29 | 1996-08-01 | Daimler Benz Ag | Abgaskrümmer für eine Brennkraftmaschine |
-
1997
- 1997-02-19 DE DE19706386A patent/DE19706386B4/de not_active Expired - Fee Related
-
1998
- 1998-02-09 ES ES98102185T patent/ES2186027T3/es not_active Expired - Lifetime
- 1998-02-09 EP EP98102185A patent/EP0860591B1/de not_active Expired - Lifetime
- 1998-02-09 DE DE59806385T patent/DE59806385D1/de not_active Expired - Fee Related
- 1998-02-19 US US09/025,857 patent/US6038769A/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103962806A (zh) * | 2014-05-15 | 2014-08-06 | 玉环凯贝利阀门有限公司 | 分水器连体出水口的加工工艺 |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2186027T3 (es) | 2003-05-01 |
| EP0860591A2 (de) | 1998-08-26 |
| US6038769A (en) | 2000-03-21 |
| EP0860591A3 (de) | 2001-03-14 |
| DE19706386A1 (de) | 1998-09-03 |
| DE59806385D1 (de) | 2003-01-09 |
| DE19706386B4 (de) | 2006-03-16 |
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