DE102008033624A1 - Exhaust gas guiding component e.g. airgap-insulated exhaust manifold, for internal combustion engine of motor vehicle, has connecting part overlapping connection region of insulation shell to fix shell at wall or side turning away from wall - Google Patents
Exhaust gas guiding component e.g. airgap-insulated exhaust manifold, for internal combustion engine of motor vehicle, has connecting part overlapping connection region of insulation shell to fix shell at wall or side turning away from wall Download PDFInfo
- Publication number
- DE102008033624A1 DE102008033624A1 DE200810033624 DE102008033624A DE102008033624A1 DE 102008033624 A1 DE102008033624 A1 DE 102008033624A1 DE 200810033624 DE200810033624 DE 200810033624 DE 102008033624 A DE102008033624 A DE 102008033624A DE 102008033624 A1 DE102008033624 A1 DE 102008033624A1
- Authority
- DE
- Germany
- Prior art keywords
- wall
- connecting part
- insulation shell
- shell
- component according
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
- F16L59/028—Composition or method of fixing a thermally insulating material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K13/00—Arrangement in connection with combustion air intake or gas exhaust of propulsion units
- B60K13/04—Arrangement in connection with combustion air intake or gas exhaust of propulsion units concerning exhaust
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- 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
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- 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
- F01N13/14—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 having thermal insulation
- F01N13/141—Double-walled exhaust pipes or housings
- F01N13/143—Double-walled exhaust pipes or housings with air filling the space between both walls
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Exhaust Silencers (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft eine Abgas führende Komponente einer Abgasanlage einer Brennkraftmaschine, insbesondere eines Kraftfahrzeuges.The The present invention relates to an exhaust gas leading component of an exhaust system an internal combustion engine, in particular a motor vehicle.
Komponenten oder Bauteile von Abgasanlagen sind im Betrieb der Brennkraftmaschine hohen thermischen Belastungen ausgesetzt. Um die Umgebung der Abgasanlage, zum Beispiel ein Fahrzeugboden sowie einen Motorraum, vor einer Überhitzung zu schützen, kann eine Wand des Bauteils mit einer Isolationsschale versehen sein. Insbesondere kann mit Hilfe einer derartigen Isolationsschale eine Luftspaltisolierung realisiert werden. Da die Wand der Komponente und die Isolationsschale im Betrieb der Abgasanlage unterschiedliche Temperaturen aufweisen können, besteht die Gefahr von thermisch bedingten Spannungsspitzen im Bereich von Verbindungen zwischen der Wand und der Isolationsschale, insbesondere dann, wenn die Wand und die Isolationsschale aus Materialien mit unterschiedlichen thermischen Ausdehnungskoeffizienten bestehen. Ferner soll die Isolationsschale möglichst leicht und möglichst preiswert sein, um Gewicht und Kosten der Komponente niedrig zu halten. Preiswerte Materialien besitzen jedoch häufig reduzierte Qualität, insbesondere reduzierte Festigkeitswerte. Dementsprechend sind beispielsweise Schweißverbindungen zwischen der Isolationsschale und der Wand einer vergleichsweise hohen Beschädigungsgefahr ausgesetzt.components or components of exhaust systems are in operation of the internal combustion engine exposed to high thermal loads. To the environment of the exhaust system, For example, a vehicle floor and an engine room, from overheating protect, can provide a wall of the component with an insulating shell be. In particular, with the help of such an insulating shell an air gap insulation can be realized. As the wall of the component and the insulation shell during operation of the exhaust system different Temperatures may have, there is a risk of thermally induced voltage peaks in the area of connections between the wall and the insulation shell, in particular then, if the wall and the insulation shell of materials with consist of different thermal expansion coefficients. Furthermore, the insulation shell should be as light and as possible be inexpensive to low the weight and cost of the component hold. However, inexpensive materials often have reduced quality, in particular reduced strength values. Accordingly, for example Welded connections between the insulation shell and the wall of a relatively high risk of damage exposed.
Die vorliegende Erfindung beschäftigt sich mit dem Problem, für eine Komponente der eingangs genannten Art eine verbesserte Ausführungsform anzugeben, die sich insbesondere dadurch auszeichnet, dass sie eine vergleichsweise hohe Standzeit aufweist, wobei sie außerdem vergleichsweise preiswert realisierbar sein soll.The present invention employs dealing with the problem, for a component of the type mentioned an improved embodiment particular distinguishing themselves by the fact that they comparatively long service life, and also comparatively should be economically feasible.
Dieses Problem wird durch den Gegenstand des unabhängigen Anspruchs gelöst. Vorteilhafte Ausführungsformen sind Gegenstand der abhängigen Ansprüche.This Problem is solved by the subject matter of the independent claim. Advantageous embodiments are the subject of the dependent Claims.
Die Erfindung beruht auf dem allgemeinen Gedanken, zum Festlegen der Isolationsschale an der Wand ein zusätzliches Bauteil, nämlich ein Verbindungsteil zu verwenden, welches die Isolationsschale in einem Verbindungsbereich übergreift und an der Wand befestigt ist. Mit Hilfe des jeweiligen Verbindungsteils wird somit eine indirekte Festlegung der Isolationsschale an der Wand realisiert. Eine direkte Verbindung zwischen Isolationsschale und Wand ist nicht mehr erforderlich. Da die Isolationsschale außerdem mit Hilfe des Verbindungsteils durch Formschluss festgelegt ist, kann auch auf eine unmittelbare Befestigung der Isolationsschale am Verbindungsteil verzichtet werden. Grundsätzlich reicht es aus, wenn das Verbindungsteil am Verbindungsbereich der Isolationsschale, insbesondere vorgespannt, anliegt. Das Verbindungsteil kann dabei nach Art eines Niederhalters wirken.The The invention is based on the general idea to set the Insulation shell on the wall an additional component, namely a To use connecting part, which the insulation shell in one Connection area overlaps and is attached to the wall. With the help of the respective connection part Thus, an indirect determination of the insulation shell on the Realized wall. A direct connection between insulation shell and wall is no longer required. Since the insulation shell also with Help the connection part is determined by positive locking can also on an immediate attachment of the insulation shell on the connecting part be waived. Basically enough it out when the connection part at the connection area of the insulation shell, in particular biased, applied. The connecting part can thereby act in the manner of a hold-down.
Da eine direkte Befestigung der Isolationsschale an der Wand nicht mehr erforderlich ist, kann die Isolationsschale hinsichtlich Gewicht, Kosten und dergleichen optimiert werden. Die mit Hilfe des jeweiligen Verbindungsteils realisierte Festlegung der Isolationsschale an der Wand schließt Relativbewegungen zwischen der Isolationsschale und der Wand nicht aus. Folglich ist die Gefahr thermisch bedingter Spannungen im Bereich des Verbindungsteils erheblich reduziert. Die Lebensdauer der so hergestellten Komponente kann dadurch gesteigert werden.There a direct attachment of the insulation shell to the wall is not is more necessary, the insulating shell can be used in terms of weight, Costs and the like can be optimized. The with the help of each Connecting parts realized fixing the insulation shell the wall closes Relative movements between the insulation shell and the wall not out. Consequently, the danger of thermal stresses is in the range of the connecting part considerably reduced. The life of the sun made component can be increased.
Der vom Verbindungsteil übergriffene Verbindungsbereich der Isolationsschale kann bei einer vorteilhaften Ausführungsform von der Wand beabstandet angeordnet sein. Bei einer derartigen Bauweise besteht im Bereich der Anbindung zwischen Isolationsschale und Wand keine direkte Kontaktierung zwischen Isolationsschale und Wand. Dies reduziert den direkten Wärmeübergang zwischen Wand und Isolationsschale.Of the from the connecting part overlapped Connection region of the insulation shell can in an advantageous embodiment spaced from the wall. In such a construction exists in the area of the connection between insulation shell and wall no direct contact between insulation shell and wall. This reduces the direct heat transfer between wall and insulation shell.
Bei einer anderen Ausführungsform kann die Isolationsschale zumindest im jeweiligen Verbindungsbereich an der Wand anliegen. Insbesondere kann dadurch der Verbindungsbereich zwischen der Wand und dem Verbindungsteil eingeklemmt werden. Dies kann zu einer vereinfachten Montage führen.at another embodiment the insulation shell can at least in the respective connection area rest against the wall. In particular, thereby the connection area be clamped between the wall and the connecting part. This can lead to a simplified assembly.
Weitere wichtige Merkmale und Vorteile der Erfindung ergeben sich aus den Unteransprüchen, aus den Zeichnungen und aus der zugehörigen Figurenbeschreibung anhand der Zeichnungen.Further important features and advantages of the invention will become apparent from the Dependent claims, from the drawings and from the associated description of the figures the drawings.
Es versteht sich, dass die vorstehend genannten und die nachstehend noch zu erläuternden Merkmale nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Kombinationen oder in Alleinstellung verwendbar sind, ohne den Rahmen der vorliegenden Erfindung zu verlassen.It it is understood that the above and the following yet to be explained features not only in the specified combination, but also in other combinations or alone, without to leave the scope of the present invention.
Bevorzugte Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und werden in der nachfolgenden Beschreibung näher erläutert, wobei sich gleiche Bezugszeichen auf gleiche oder ähnliche oder funktional gleiche Bauteile beziehen.preferred embodiments The invention are illustrated in the drawings and in the following description explains where like reference numerals refer to the same or similar or functionally identical components relate.
Es zeigen, jeweils schematisch,It show, in each case schematically,
Entsprechend
den
Entsprechend
den
Bei
der in
Bei
den gezeigten Ausführungsformen
ist das jeweilige Verbindungsteil
Bei
den gezeigten Ausführungsformen
ist das jeweilige Verbindungsteil
Bei
der in
Die
Isolationsschale
Des
weiteren können
die Materialien, aus denen die Isolationsschale
Entsprechend
Ebenso
kann es sich bei der Komponente
Claims (12)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810033624 DE102008033624A1 (en) | 2008-07-17 | 2008-07-17 | Exhaust gas guiding component e.g. airgap-insulated exhaust manifold, for internal combustion engine of motor vehicle, has connecting part overlapping connection region of insulation shell to fix shell at wall or side turning away from wall |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810033624 DE102008033624A1 (en) | 2008-07-17 | 2008-07-17 | Exhaust gas guiding component e.g. airgap-insulated exhaust manifold, for internal combustion engine of motor vehicle, has connecting part overlapping connection region of insulation shell to fix shell at wall or side turning away from wall |
Publications (1)
Publication Number | Publication Date |
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DE102008033624A1 true DE102008033624A1 (en) | 2010-03-04 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE200810033624 Pending DE102008033624A1 (en) | 2008-07-17 | 2008-07-17 | Exhaust gas guiding component e.g. airgap-insulated exhaust manifold, for internal combustion engine of motor vehicle, has connecting part overlapping connection region of insulation shell to fix shell at wall or side turning away from wall |
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DE (1) | DE102008033624A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017208638A1 (en) * | 2017-05-22 | 2018-11-22 | Audi Ag | Exhaust system for an internal combustion engine |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19957806A1 (en) * | 1999-12-01 | 2001-06-07 | Bsh Bosch Siemens Hausgeraete | Insulating wall |
DE10114295A1 (en) * | 2001-03-23 | 2002-10-02 | Reinz Dichtungs Gmbh U Co Kg | Heat shield fixing element is formed from flanged shell and flanged element |
DE202006001894U1 (en) * | 2006-02-03 | 2007-06-06 | Carcoustics Tech Center Gmbh | Fastener for vehicle parts |
-
2008
- 2008-07-17 DE DE200810033624 patent/DE102008033624A1/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19957806A1 (en) * | 1999-12-01 | 2001-06-07 | Bsh Bosch Siemens Hausgeraete | Insulating wall |
DE10114295A1 (en) * | 2001-03-23 | 2002-10-02 | Reinz Dichtungs Gmbh U Co Kg | Heat shield fixing element is formed from flanged shell and flanged element |
DE202006001894U1 (en) * | 2006-02-03 | 2007-06-06 | Carcoustics Tech Center Gmbh | Fastener for vehicle parts |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017208638A1 (en) * | 2017-05-22 | 2018-11-22 | Audi Ag | Exhaust system for an internal combustion engine |
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R082 | Change of representative |
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R081 | Change of applicant/patentee |
Owner name: EBERSPAECHER EXHAUST TECHNOLOGY GMBH & CO. KG, DE Free format text: FORMER OWNER: J. EBERSPAECHER GMBH & CO. KG, 73730 ESSLINGEN, DE Effective date: 20130522 |
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Representative=s name: BRP RENAUD UND PARTNER MBB RECHTSANWAELTE PATE, DE Effective date: 20130522 Representative=s name: BRP RENAUD UND PARTNER MBB, DE Effective date: 20130522 Representative=s name: BRP RENAUD & PARTNER, DE Effective date: 20130522 |
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Owner name: PUREM GMBH, DE Free format text: FORMER OWNER: EBERSPAECHER EXHAUST TECHNOLOGY GMBH & CO. KG, 66539 NEUNKIRCHEN, DE |