DE202007015606U1 - Exhaust manifold for internal combustion engines - Google Patents
Exhaust manifold for internal combustion engines Download PDFInfo
- Publication number
- DE202007015606U1 DE202007015606U1 DE202007015606U DE202007015606U DE202007015606U1 DE 202007015606 U1 DE202007015606 U1 DE 202007015606U1 DE 202007015606 U DE202007015606 U DE 202007015606U DE 202007015606 U DE202007015606 U DE 202007015606U DE 202007015606 U1 DE202007015606 U1 DE 202007015606U1
- Authority
- DE
- Germany
- Prior art keywords
- flange
- collar
- outer shell
- inner shell
- exhaust manifold
- 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
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
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1888—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/08—Other arrangements or adaptations of exhaust conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- 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
- 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 ; 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
- F01N13/105—Other arrangements or adaptations of exhaust conduits of exhaust manifolds having the form of a chamber directly connected to the cylinder head, e.g. without having tubes connected between cylinder head and chamber
-
- 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
- F01N13/1805—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 ; 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
- F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
- F01N13/1827—Sealings specially adapted for exhaust systems
-
- 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
- F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
- F01N13/1844—Mechanical joints
-
- 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
Abstract
Description
Die Erfindung betrifft luftspaltisolierte Abgaskrümmer für Brennkraftmaschinen gemäß dem Oberbegriff des Anspruchs 1.The The invention relates to air gap insulated exhaust manifold for Internal combustion engines according to the preamble of Claim 1.
Luftspaltisolierte
Abgaskrümmer umfassen im Wesentlichen ein Sammelgehäuse
für die Motorabgase, bestehend aus einer Innen- und einer
Außenschalenkonstruktion, welche durch einen Luftspalt
voneinander isoliert sind. Dieses Sammelgehäuse ist zudem
mit mehreren Flanschen versehen, die an den entsprechenden Auslässen
des Zylinderkopfes der Brennkraftmaschine anschließen. Luftspaltisolierte
Abgaskrümmer gehören insbesondere bei mit Katalysator
ausgestatteten Kraftfahrzeugen zum Stand der Technik. Hier setzen
luftspaltisolierte Abgaskrümmer, wie sie aus
Ein Katalysator benötigt eine relativ hohe Mindesttemperatur, um die Abgasumwandlung effizient vornehmen zu können. Diese sogenannte Anspringtemperatur liegt bei etwa 250°C. So sind die nach dem Motorstart aus dem Zylinderraum in den Abgaskrümmer strömenden heißen Abgase, die dann zur Konvertierung in den Katalysator weitergeleitet werden, selbst die einzige Wärmequelle zur Aktivierung des Katalysators. Vorteilsmäßig nimmt das dünnwandige Wandblech der Innenschalenstruktur im Abgaskrümmer schnell die Abgastemperatur von bis zu 900°C an, ohne dem Abgasstrom nennenswert Wärme zu entziehen. Des weiteren vorteilsmäßig werden die Wärmeverluste durch den isolierend wirkenden Luftspalt zur Außenschale und damit schließlich in den Motorraum klein gehalten. Die Außenschale des Abgaskrümmers überschreitet selbst bei längerem Motorbetrieb eine Temperatur von 500°C nicht.One Catalyst requires a relatively high minimum temperature, to efficiently carry out the exhaust gas conversion. These so-called light-off temperature is about 250 ° C. So are the after engine start from the cylinder chamber in the exhaust manifold flowing hot exhaust gases, which then convert be passed into the catalyst, even the only heat source for activating the catalyst. advantage default takes the thin-walled wall panel of the inner shell structure in Exhaust manifold quickly the exhaust gas temperature of up to 900 ° C. without significantly removing heat from the exhaust gas flow. Furthermore, advantageously, the heat losses through the insulating air gap to the outer shell and finally kept small in the engine compartment. The outer shell of the exhaust manifold exceeds even with prolonged engine operation, a temperature of 500 ° C not.
Kritische Bereiche für unerwünschte Wärmeverluste an der Innenschale und damit demzufolge auch Wärmeverluste des Abgasstromes sind die Bereiche, an denen sich die Innenschale in direktem Kontakt mit der kälteren Außenschale und vor allem den erheblich kälteren Flanschen, die ungefähr die Temperatur des wassergekühlten Zylinderkopfes von max. 120°C annehmen, befindet. Ursache dafür ist, dass in diesen Bereichen die Wärmeübertragung durch Wärmeleitung stattfindet, das heißt von der wärmeren Innenschale zur kälteren Außenschale, bzw. zu den kälteren Flanschen fließt die Wärme durch Übertragung der kinetischen Energie der Atome. Dieser Weg der Wärmeübertragung zwischen Feststoffen durch Wärmeleitung ist erheblich (etwa um den Faktor 1000) stärker als die Wärmeübertragung durch Konvektion (= Übergang an das strömende Medium) und durch Wärmestrahlung, die in den übrigen Bereichen der vom Luftspalt umgebenen Innenschale für die Wärmeverluste verantwortlich sind. Andererseits sind solche Kontaktbereiche unvermeidbar, weil man die Innenschalenstruktur schließlich aus Stabilitätsgründen befestigen muss und sie nicht in der Außenschalenstruktur lose einsetzen kann. Dabei ist eine Befestigung der Innenschale ohne Klapper- oder Spielfreiheit schon deshalb wichtig, um unerwünschte Vibrationen, die zu einer zusätzlichen Geräuschemissionsquelle werden, auszuschließen. Demzufolge muss für eine effektive Fixierung der Innenschale im Abgaskrümmer ebenfalls Sorge getragen werden.critical Areas for unwanted heat loss on the inner shell and thus also heat losses the exhaust gas flow are the areas where the inner shell in direct contact with the colder outer shell and especially the much colder flanges, which are about the temperature of the water-cooled cylinder head of max. 120 ° C is located. Cause is that in these areas the heat transfer through Heat conduction takes place, that is from the warmer Inner shell to the colder outer shell, or to the heat flows through the transmission through the colder flanges the kinetic energy of the atoms. This way of heat transfer between solids by heat conduction is significant (about the factor 1000) stronger than the heat transfer by convection (= transition to the flowing Medium) and by heat radiation, in the rest Areas of the inner shell surrounded by the air gap for the Heat losses are responsible. On the other hand, such Contact areas unavoidable, because you have the inner shell structure Finally attach for stability reasons must and can not use them loose in the outer shell structure. In this case, an attachment of the inner shell without rattle or backlash That's why it's important to avoid unwanted vibrations to an additional noise emission source be excluded. Consequently, for a effective fixation of the inner shell in the exhaust manifold also care be worn.
Diese
Fixierung geschieht, wie in der
Beide
Konstruktionen haben den Nachteil, dass den durch die Wärmeeinwirkung
verursachten Bewegungen der Innenschalenstruktur kein oder kein
effizient zu kontrollierender Freigang gewährt wird. Im
Falle von
Der vorliegenden Erfindung liegt deshalb die Aufgabe zugrunde, einen Abgaskrümmer im Flanschanschlussbereich an den Zylinderblock so zu konstruieren, dass die Innenschale zum einen fest, das heißt vibrationsfrei gelagert ist, und dass zum anderen die thermische Ausdehnung der Innenschale gegenüber Flansch und Außenschale, vor allem bei den Temperaturänderungen in der Phase kurz nach Start und Stopp des Motors, ermöglicht wird, ohne dass diese Wärmedehnungen negativen Einfluss auf die vibrationsfreie Lagerung der Innenschale hätten.The present invention is therefore based on the object to construct an exhaust manifold in the flange connection area to the cylinder block so that the inner shell for a fixed, that is stored vibration-free, and that for whose thermal expansion of the inner shell with respect to the flange and outer shell, especially during the temperature changes in the phase shortly after the start and stop of the engine, is made possible without these thermal expansions having a negative influence on the vibration-free mounting of the inner shell.
Erfindungsgemäß wird diese Aufgabe durch die in Anspruch 1 genannten Merkmale gelöst.According to the invention This object is achieved by the features mentioned in claim 1.
Vorteilhafte Weiterbildungen ergeben sich aus den Unteransprüchen.advantageous Further developments emerge from the subclaims.
Ein erster wesentlicher Vorteil des erfindungsgemäßen Abgaskrümmers ist, dass er aus lediglich drei Komponenten besteht: eine haubenförmige Außenschale, die über ihren umlaufenden Bund mit dem Flansch verbunden ist, und eine Innenschale, die die gleiche haubenförmige Schalenform aufweist wie die Außenschale und mit ihrem Bund zwischen dem Bund der Außenschale und der Flanschfläche eingeklemmt ist. Kenzeichnendes Merkmal der vorliegenden Erfindung ist, dass die Innenschale durch Ausbuchtungen entlang ihrer Bundfläche zwischen der Außenschale und dem Flansch in einer festen, definierten Position eingeklemmt wird. Es sind also keine weiteren Teile wie Befestigungselemente oder Dichtungseinrichtungen notwendig. Die Außenschale wird mit dem Flansch verschweißt oder verlötet. Im Falle der Verlötung wird der Flansch als Blechteil ausgebildet, der an den Rändern um den Rand der Außenschale gebördelt wird.One first significant advantage of the invention Exhaust manifold is that it consists of only three components consists of: a hood-shaped outer shell that over its circumferential collar is connected to the flange, and an inner shell, which has the same hood-shaped shell shape as the outer shell and with its covenant between the covenant of Outer shell and the flange surface clamped is. Characteristic feature of the present invention is that the inner shell by bulges along its waistband between the outer shell and the flange in a solid, is clamped defined position. So there are no more Parts such as fasteners or sealing devices necessary. The outer shell is welded to the flange or soldered. In the case of soldering is the Flange formed as a sheet metal part, which at the edges around the edge of the outer shell is crimped.
Anhand der Zeichnungen soll die Erfindung in Form verschiedener Ausführungsbeispiele näher erläutert werden. Es zeigenBased of the drawings, the invention in the form of various embodiments be explained in more detail. Show it
Die
Bei
allen in den
Die
Innenschale (
Auf diese Ausführungsformen wird jetzt explizit eingegangen:On these embodiments will now be explicitly addressed:
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 10102637 [0002] - DE 10102637 [0002]
- - DE 10001287 [0005, 0006] - DE 10001287 [0005, 0006]
- - EP 0671551 [0005, 0006] - EP 0671551 [0005, 0006]
Claims (14)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202007015606U DE202007015606U1 (en) | 2007-11-09 | 2007-11-09 | Exhaust manifold for internal combustion engines |
AT08847012T ATE510114T1 (en) | 2007-11-09 | 2008-10-18 | EXHAUST MANIFOLDS FOR COMBUSTION ENGINES |
EP08847012A EP2207950B1 (en) | 2007-11-09 | 2008-10-18 | Exhaust gas manifold for internal combustion engines |
PCT/EP2008/008830 WO2009059688A1 (en) | 2007-11-09 | 2008-10-18 | Exhaust gas manifold for internal combustion engines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202007015606U DE202007015606U1 (en) | 2007-11-09 | 2007-11-09 | Exhaust manifold for internal combustion engines |
Publications (1)
Publication Number | Publication Date |
---|---|
DE202007015606U1 true DE202007015606U1 (en) | 2009-03-26 |
Family
ID=40219311
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE202007015606U Expired - Lifetime DE202007015606U1 (en) | 2007-11-09 | 2007-11-09 | Exhaust manifold for internal combustion engines |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2207950B1 (en) |
AT (1) | ATE510114T1 (en) |
DE (1) | DE202007015606U1 (en) |
WO (1) | WO2009059688A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2746546A1 (en) * | 2012-12-20 | 2014-06-25 | Friedrich Boysen GmbH & Co. KG | Exhaust manifold |
US9689302B2 (en) | 2014-09-26 | 2017-06-27 | Benteler Automobiltechnik Gmbh | Exhaust manifold |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014103809A1 (en) | 2014-03-20 | 2015-12-03 | Benteler Automobiltechnik Gmbh | Exhaust manifold for an exhaust system of an internal combustion engine |
DE102014105656B4 (en) | 2014-04-22 | 2017-02-02 | Benteler Automobiltechnik Gmbh | exhaust manifold |
CN106274447A (en) * | 2016-08-30 | 2017-01-04 | 保隆(安徽)汽车配件有限公司 | A kind of heat insulation type tailpiece frame assembly |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0671551A1 (en) | 1994-03-09 | 1995-09-13 | Etablissement STREIT S.A. | Exhaust manifold for automotive vehicle engines |
DE10001287A1 (en) | 1999-08-05 | 2001-02-22 | Hans A Haerle | Exhaust gas manifold for motor vehicle internal combustion engine has collector housing attached to the head by studs and sealing gasket |
DE10102637A1 (en) | 2001-01-20 | 2002-07-25 | Bayerische Motoren Werke Ag | Exhaust manifold for exhaust gas discharge from an internal combustion engine |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE321937T1 (en) | 2001-01-29 | 2006-04-15 | Hans A Haerle | EXHAUST MANIFOLD |
DE10125121A1 (en) * | 2001-05-23 | 2002-11-28 | Daimler Chrysler Ag | Exhaust gas manifold for attaching to a cylinder head of an internal combustion engine comprises exhaust gas bores, an exhaust gas collection housing, a gas guiding channel, and a sealing device |
DE10200638C2 (en) * | 2002-01-10 | 2003-12-11 | Benteler Automobiltechnik Gmbh | Arrangement for guiding exhaust gas from an internal combustion engine |
-
2007
- 2007-11-09 DE DE202007015606U patent/DE202007015606U1/en not_active Expired - Lifetime
-
2008
- 2008-10-18 AT AT08847012T patent/ATE510114T1/en active
- 2008-10-18 EP EP08847012A patent/EP2207950B1/en active Active
- 2008-10-18 WO PCT/EP2008/008830 patent/WO2009059688A1/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0671551A1 (en) | 1994-03-09 | 1995-09-13 | Etablissement STREIT S.A. | Exhaust manifold for automotive vehicle engines |
DE10001287A1 (en) | 1999-08-05 | 2001-02-22 | Hans A Haerle | Exhaust gas manifold for motor vehicle internal combustion engine has collector housing attached to the head by studs and sealing gasket |
DE10102637A1 (en) | 2001-01-20 | 2002-07-25 | Bayerische Motoren Werke Ag | Exhaust manifold for exhaust gas discharge from an internal combustion engine |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2746546A1 (en) * | 2012-12-20 | 2014-06-25 | Friedrich Boysen GmbH & Co. KG | Exhaust manifold |
US9689302B2 (en) | 2014-09-26 | 2017-06-27 | Benteler Automobiltechnik Gmbh | Exhaust manifold |
Also Published As
Publication number | Publication date |
---|---|
EP2207950B1 (en) | 2011-05-18 |
ATE510114T1 (en) | 2011-06-15 |
WO2009059688A1 (en) | 2009-05-14 |
EP2207950A1 (en) | 2010-07-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R207 | Utility model specification |
Effective date: 20090430 |
|
R156 | Lapse of ip right after 3 years |
Effective date: 20110601 Effective date: 20110531 |