DE102011107119A1 - Off-gas elbow cover for internal combustion engine mounted in motor vehicle, has sound absorber provided for acoustic shield of off-gas elbow to absorb hitting acoustic wave in off-gas elbow gasket firmly connected with sound absorber - Google Patents
Off-gas elbow cover for internal combustion engine mounted in motor vehicle, has sound absorber provided for acoustic shield of off-gas elbow to absorb hitting acoustic wave in off-gas elbow gasket firmly connected with sound absorber Download PDFInfo
- Publication number
- DE102011107119A1 DE102011107119A1 DE201110107119 DE102011107119A DE102011107119A1 DE 102011107119 A1 DE102011107119 A1 DE 102011107119A1 DE 201110107119 DE201110107119 DE 201110107119 DE 102011107119 A DE102011107119 A DE 102011107119A DE 102011107119 A1 DE102011107119 A1 DE 102011107119A1
- Authority
- DE
- Germany
- Prior art keywords
- exhaust manifold
- sound absorber
- gas elbow
- gasket
- cover
- 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.)
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Classifications
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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
- 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
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/24—Silencing apparatus characterised by method of silencing by using sound-absorbing materials
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Abstract
Description
Die Erfindung betrifft eine Abgaskrümmerabdeckung für einen Abgaskrümmer einer Brennkraftmaschine nach dem Oberbegriff des Anspruchs 1.The invention relates to an exhaust manifold cover for an exhaust manifold of an internal combustion engine according to the preamble of claim 1.
Aus der
Der Erfindung liegt insbesondere die Aufgabe zugrunde, eine einfach zu befestigende akustisch und thermisch wirksame Abgaskrümmerabdeckung bereitzustellen. Sie wird gemäß der Erfindung durch die Merkmale des Anspruchs 1 gelöst. Weitere Ausgestaltungen ergeben sich aus den Unteransprüchen.The invention is in particular the object of providing an easy to install acoustically and thermally effective exhaust manifold cover. It is achieved according to the invention by the features of claim 1. Further embodiments emerge from the subclaims.
Die Erfindung geht aus von einer Abgaskrümmerabdeckung mit einem Hitzeschild, der zur thermischen Abschirmung eines Abgaskrümmers einer Brennkraftmaschine vorgesehen ist und der einen Schallabsorber aufweist, der zur akustischen Abschirmung des Abgaskrümmers dazu vorgesehen ist, eine auftreffende Schallwelle im Wesentlichen zu absorbieren.The invention is based on an exhaust manifold cover with a heat shield, which is provided for thermal shielding of an exhaust manifold of an internal combustion engine and having a sound absorber, which is provided for acoustic shielding of the exhaust manifold to substantially absorb an incident sound wave.
Es wird vorgeschlagen, dass die Abgaskrümmerabdeckung eine Abgaskrümmerdichtung aufweist, die fest mit dem Schallabsorber verbunden ist. Dadurch kann eine Geräuschbelastung, insbesondere in einem Innenraum eines Kraftfahrzeugs, aber auch gegenüber einer Umgebung verringert werden, während gleichzeitig Bauteile, die den Abgaskrümmer umgeben, vorteilhaft gegen eine thermische Überbelastung aufgrund einer thermischen Abstrahlung des Abgaskrümmers geschützt werden können. Durch die feste Verbindung des Hitzeschilds mit der Abgaskrümmerdichtung kann eine aufwendige Befestigung des Hitzeschilds entfallen, wodurch eine einfach zu befestigende akustisch und thermisch wirksame Abgaskrümmerabdeckung bereitgestellt werden kann. Unter einer „thermischen Abschirmung” soll dabei insbesondere verstanden werden, dass die Abgaskrümmerabdeckung für umliegende Bauteile eine thermische Belastung durch die Abstrahlung des Abgaskrümmers senkt. Unter „im Wesentlichen absorbieren” soll insbesondere verstanden werden, dass eine Intensität einer auf den Schallabsorber auftreffenden Schallwelle um zumindest 50%, vorzugsweise um zumindest 60% und besonders vorteilhaft um zumindest 75% verringert wird. Unter einer Schallwelle soll dabei insbesondere eine Schallabstrahlung des Abgaskrümmers in einem Leerlauf- sowie im Teil- und Vollast-Betrieb der Brennkraftmaschine verstanden werden. Unter „vorgesehen” soll insbesondere speziell programmiert, ausgelegt und/oder ausgestattet verstanden werden.It is proposed that the exhaust manifold cover has an exhaust manifold gasket which is fixedly connected to the sound absorber. As a result, a noise load, in particular in an interior of a motor vehicle, but also with respect to an environment can be reduced, while at the same time components that surround the exhaust manifold, can be advantageously protected against thermal overload due to thermal radiation of the exhaust manifold. Due to the fixed connection of the heat shield with the exhaust manifold gasket can be dispensed with a complex attachment of the heat shield, whereby an easy to install acoustically and thermally effective exhaust manifold cover can be provided. A "thermal shield" should be understood in particular that the exhaust manifold cover for surrounding components lowers a thermal load by the emission of the exhaust manifold. By "substantially absorbing" is meant in particular that an intensity of a sound wave impinging on the sound absorber is reduced by at least 50%, preferably by at least 60% and particularly advantageously by at least 75%. Under a sound wave is to be understood in particular a sound radiation of the exhaust manifold in an idling and in partial and full load operation of the internal combustion engine. By "provided" is intended to be understood in particular specially programmed, designed and / or equipped.
Weiter wird vorgeschlagen, dass die Abgaskrümmerdichtung und der Schallabsorber zumindest teilweise einstückig ausgeführt sind. Dadurch kann eine besonders einfache konstruktive Ausgestaltung der Abgaskrümmerabdeckung erreicht werden. Unter „einstückig” soll in diesem Zusammenhang insbesondere verstanden werden, dass die Abgaskrümmerdichtung und der Hitzeschild wenigstens ein gemeinsames Bauteil aufweisen.It is further proposed that the exhaust manifold gasket and the sound absorber are at least partially made in one piece. This allows a particularly simple structural design of the exhaust manifold cover can be achieved. In this context, "integral" is to be understood in particular as meaning that the exhaust manifold gasket and the heat shield have at least one common component.
Dabei ist es insbesondere vorteilhaft, wenn die Abgaskrümmerabdeckung ein Blech aufweist, das als Dichtelement für die Abgaskrümmerdichtung und als Trägerblech für den Schallabsorber vorgesehen ist. Dadurch kann die feste Verbindung und insbesondere die einstückige Ausgestaltung besonders einfach erreicht werden. Unter einem Blech soll dabei insbesondere ein Element verstanden werden, dessen Stärke im Verhältnis zu seinen sonstigen Abmessungen sehr gering ist.It is particularly advantageous if the exhaust manifold cover has a plate which is provided as a sealing element for the exhaust manifold gasket and as a support plate for the sound absorber. Thereby, the fixed connection and in particular the one-piece design can be achieved particularly easily. Under a sheet should be understood in particular an element whose strength is very low in relation to its other dimensions.
Außerdem wird vorgeschlagen, dass der Schallabsorber zumindest dreilagig ausgebildet ist. Dadurch kann ein akustisch besonders wirksamer Schallabsorber bereitgestellt werden. Unter einer „zumindest dreilagigen Ausbildung” soll dabei insbesondere verstanden werden, dass der Schallabsorber zumindest drei Schichten aufweist, die eine unterschiedliche Struktur aufweisen und/oder aus unterscheidbaren Materialien sind.It is also proposed that the sound absorber is formed at least three layers. As a result, an acoustically particularly effective sound absorber can be provided. An "at least three-layered design" should be understood in particular to mean that the sound absorber has at least three layers which have a different structure and / or are made of distinguishable materials.
Weitere Vorteile ergeben sich aus der folgenden Zeichnungsbeschreibung. In den Zeichnungen ist ein Ausführungsbeispiel der Erfindung dargestellt. Die Zeichnungen, die Beschreibung und die Ansprüche enthalten zahlreiche Merkmale in Kombination. Der Fachmann wird die Merkmale zweckmäßigerweise auch einzeln betrachten und zu sinnvollen weiteren Kombinationen zusammenfassen.Further advantages emerge from the following description of the drawing. In the drawings, an embodiment of the invention is shown. The drawings, the description and the claims contain numerous features in combination. The person skilled in the art will expediently also consider the features individually and combine them into meaningful further combinations.
Dabei zeigen:Showing:
Die
Weiter umfasst die Abgaskrümmerabdeckung die Abgaskrümmerdichtung
Die Abgaskrümmerdichtung
Zum einen ist das Blech
Für den Schallabsorber
Die Deckschicht
Das Blech
In montiertem Zustand ist die Deckschicht
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES 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 of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 102005058253 A1 [0002] DE 102005058253 A1 [0002]
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201110107119 DE102011107119A1 (en) | 2011-07-12 | 2011-07-12 | Off-gas elbow cover for internal combustion engine mounted in motor vehicle, has sound absorber provided for acoustic shield of off-gas elbow to absorb hitting acoustic wave in off-gas elbow gasket firmly connected with sound absorber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201110107119 DE102011107119A1 (en) | 2011-07-12 | 2011-07-12 | Off-gas elbow cover for internal combustion engine mounted in motor vehicle, has sound absorber provided for acoustic shield of off-gas elbow to absorb hitting acoustic wave in off-gas elbow gasket firmly connected with sound absorber |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102011107119A1 true DE102011107119A1 (en) | 2013-01-17 |
Family
ID=47425543
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE201110107119 Withdrawn DE102011107119A1 (en) | 2011-07-12 | 2011-07-12 | Off-gas elbow cover for internal combustion engine mounted in motor vehicle, has sound absorber provided for acoustic shield of off-gas elbow to absorb hitting acoustic wave in off-gas elbow gasket firmly connected with sound absorber |
Country Status (1)
Country | Link |
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DE (1) | DE102011107119A1 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005058253A1 (en) | 2005-12-06 | 2007-06-14 | Federal-Mogul Sealing Systems Gmbh | Protective shield for the thermal and acoustic shielding of components of an internal combustion engine |
-
2011
- 2011-07-12 DE DE201110107119 patent/DE102011107119A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005058253A1 (en) | 2005-12-06 | 2007-06-14 | Federal-Mogul Sealing Systems Gmbh | Protective shield for the thermal and acoustic shielding of components of an internal combustion engine |
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Legal Events
Date | Code | Title | Description |
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R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20150203 |