EP1500798A1 - Schalldämpfer sowie Abgasanlage - Google Patents
Schalldämpfer sowie Abgasanlage Download PDFInfo
- Publication number
- EP1500798A1 EP1500798A1 EP04015174A EP04015174A EP1500798A1 EP 1500798 A1 EP1500798 A1 EP 1500798A1 EP 04015174 A EP04015174 A EP 04015174A EP 04015174 A EP04015174 A EP 04015174A EP 1500798 A1 EP1500798 A1 EP 1500798A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- exhaust pipe
- resonator
- silencer
- housing
- sound absorber
- 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.)
- Granted
Links
- 230000003584 silencer Effects 0.000 title claims abstract description 37
- 239000006096 absorbing agent Substances 0.000 claims abstract description 52
- 238000013016 damping Methods 0.000 claims description 13
- 238000004891 communication Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 4
- 239000006098 acoustic absorber Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 24
- 230000002238 attenuated effect Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011490 mineral wool Substances 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 210000002268 wool Anatomy 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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 ; 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
-
- 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
- F01N1/003—Silencing apparatus characterised by method of silencing by using dead chambers communicating with gas flow passages
- F01N1/006—Silencing apparatus characterised by method of silencing by using dead chambers communicating with gas flow passages comprising at least one perforated tube extending from inlet to outlet of the silencer
-
- 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
- F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
- F01N1/04—Silencing apparatus characterised by method of silencing by using resonance having sound-absorbing materials in resonance chambers
-
- 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
- F01N2310/00—Selection of sound absorbing or insulating material
- F01N2310/02—Mineral wool, e.g. glass wool, rock wool, asbestos or the like
-
- 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
- F01N2310/00—Selection of sound absorbing or insulating material
- F01N2310/04—Metallic wool, e.g. steel wool, copper wool or the like
-
- 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
- F01N2470/00—Structure or shape of gas passages, pipes or tubes
- F01N2470/02—Tubes being perforated
- F01N2470/04—Tubes being perforated characterised by shape, disposition or dimensions of apertures
-
- 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
- F01N2470/00—Structure or shape of gas passages, pipes or tubes
- F01N2470/10—Tubes having non-circular cross section
Definitions
- the invention relates to a silencer according to the preamble of the claim 1 for an exhaust system of a motor vehicle. Furthermore, the concerns Invention an exhaust system for a motor vehicle, with an inventive Silencer.
- the exhaust gas flow to conduct through a so-called sound absorber or absorption silencer.
- the sound waves in a damping material by friction converted into heat and so muted.
- a silencer for an exhaust system of a Motor vehicle known in the sound waves of different frequency ranges attenuated by the combination of a resonator with a sound absorber be arranged in a common muffler housing.
- Resonator here serves a branched off from the exhaust pipe resonator tube, with is in flow communication with the exhaust pipe.
- the sound absorber that the is to attenuate high-frequency sound waves, is spaced from the resonator tube arranged in the muffler housing and is also with the exhaust pipe in Flow connection.
- a disadvantage of this known muffler is in particular that of Silencer due to the combination of the resonator tube with the sound absorber a large volume compared to conventional silencers has.
- the invention solves the problem by a muffler with the features according to claim 1. Furthermore, the invention solves the problem by an exhaust system according to claim 12, with a silencer according to the invention Is provided.
- the silencer according to the invention which is provided with a resonator for Attenuation of low-frequency sound waves and a sound absorber for absorption high-frequency sound waves are both simultaneously the exhaust pipe itself and the sound absorber as functional elements of Resonator used form as part of the resonator.
- a tubular resonance body is produced used, which is in flow communication with the exhaust pipe, the exhaust pipe circumferentially encloses simultaneously, but spaced from the exhaust pipe while at the same time the sound absorber is at least partially in the open end of the sound box is inserted.
- the gas volume in the resonator, with which the low - frequency components of the Sound waves are to be damped, is thus through the inner surface of the Resonant body, the outer surface of the resonant body enclosed Section of the exhaust pipe and the outer surface of the resonant body introduced sound absorber limited.
- the Exhaust pipe and the sound absorber in the design of the resonator leaves a very compact silencer with a compared to the state of the Implement technology of extremely low volume.
- the exhaust pipe and the sound absorber specifically influence the damping behavior of the resonator.
- Muffler proposed to use the tubular resonator body its opposite end to the open end on the inside to attach the silencer housing.
- the sound box with its end opposite the open end on the outer surface be attached to the exhaust pipe.
- the distance of the inner surface of the resonator to the outer surface of the exhaust pipe in the circumferential direction of Exhaust pipe considered at least approximately constant to unwanted To avoid turbulences in the sound box, which may arise could cause audible flow noise.
- the distance of the inner surface of the resonator to the outer surface of the exhaust pipe preferably also in the longitudinal direction of the Seen resonant body considered at least partially constant.
- the silencer has the exhaust pipe and the resonance body preferably at least approximately circular cross section, wherein the tubular resonance body concentric is arranged to the exhaust pipe.
- the exhaust pipe For example, to make oval in cross-section. In such a development should the cross section of the resonator to the cross section of Adapted exhaust pipe and be arranged symmetrically to the exhaust pipe.
- the sound absorber is in a particularly preferred embodiment of the inventive muffler designed so that even the sound absorber completely encloses the exhaust pipe in the circumferential direction, wherein the Sound absorber is attached to the exhaust pipe at the same time.
- This can be on the one hand the connection of the sound absorber to the exhaust pipe on very simple Realize manner, while the sound absorber at the same time at extremely low Space requirement for the sound absorption sufficiently large volume can.
- a sound absorber As a sound absorber is used in this preferred embodiment described above preferably a sound absorber, which is a pushed onto the exhaust pipe Absorber housing having, with the exhaust pipe in flow communication standing interior opposite the muffler housing at least approximately gas-tight, and with a damping material, such as Mineral wool, steel wool and the like, is filled for sound absorption.
- a damping material such as Mineral wool, steel wool and the like.
- the resonator over the entire length of the resonator consistent Has flow and damping property is the resonant body in a particularly preferred embodiment of the invention Silencer at its open end so widened that in one plane viewed transversely to the longitudinal direction of the resonator body in the plane of the inner surface of the sound box and the outer surface of the sound absorber limited flow cross section at least approximately the flow cross section corresponds to that of the inner surface of the sound box and the outer surface of the exhaust pipe in a parallel second plane considered limited.
- a plurality of openings are formed, by the exhaust gases between the exhaust pipe and the resonator body or the sound absorber can flow back and forth, with the provision a plurality of openings instead of a single opening the exhaust pipe in his Stiffness is hardly affected.
- the openings are particularly preferred as Slots formed which extend in the longitudinal direction of the exhaust pipe.
- the sum of the surface areas of the flow-through surfaces of the resonator in fluid communication openings on the exhaust pipe should about 0.8 to 1 times that in a plane transverse to the longitudinal direction of Resonant body considered flow cross section, the of the Inner surface of the resonance body and the outer surface of the exhaust pipe is limited to ensure that the entire gas volume in the sound box is vibrated and a sufficiently high damping effect is guaranteed.
- the sum of the Flow cross-sections of the openings in total less than 0.8 times the Flow cross section of the resonator is, for example, if manufacturing technology Reasons or for reasons of insufficient rigidity the exhaust pipe, the size and number of openings is limited.
- each survey should preferably be half the distance between the Inner surface of the sound box and the outer surface of the sound absorber correspond to remaining gap, in which the elevation protrudes.
- the invention relates to an exhaust system for a Motor vehicle equipped with a silencer according to the invention.
- Fig. 1 is a schematic sectional view of an inventive silencer 10 shown for an exhaust system in a motor vehicle.
- the silencer 10 is conventionally either via flanges to the casing the exhaust system connected or already in the exhaust system immediately integrated.
- the muffler 10 has a muffler housing 12, the in the illustrated embodiment a Hollow cylinder shape has.
- the muffler housing 12 is at its two each end closed by a cover 14 and 16, respectively.
- a hollow cylindrical exhaust pipe extends 18, which formed by the two covers 14 and 16 openings 20 and 22 in the longitudinal direction of the muffler housing 12 passed is.
- the exhaust pipe 18 is connected to the two covers 14 and 16 of the Silencer housing 12 gas-tight welded.
- a resonator 24 of a resonator 26 is arranged in the muffler housing 12 in the muffler housing 12 is concentric about the exhaust pipe 18 .
- the also trained as a pipe Sound box 24 is with its one open end on the inside attached to the cover 14 shown on the left in Fig. 1, extends in the longitudinal direction the silencer housing 12 and ends at a short distance before the inside of the second cover 16 so that the other end of the tubular Sound box 24 remains open.
- the resonator 24 has a cylindrical portion 28, which merges into a flared cylindrical portion 30 which is about 3/4 the length of the resonator 24 forms.
- the sound absorber 32 In the flared portion 30 of the sound box 24 is a sound absorber 32 arranged.
- the sound absorber 32 has an absorber housing 34, which as a the exhaust pipe 18 enclosing pipe piece is formed, which at closed at its ends and connected to the exhaust pipe 18 gas-tight.
- a damping material 36 In the interior of the absorber housing 34 is a damping material 36, such as rock wool, Steel wool and the like, taken with the in the absorber housing 34 conducted medium and high frequency sound waves by friction in heat be converted and steamed in this way.
- the radial elevations 38 are each dimensioned in their length, that they are about half the gap height between the inner surface of the resonator 24 and the outer surface of the sound absorber 32 correspond. They are intended to prevent the vibrating body vibrating during damping 24 collided with the inside of the muffler housing 12.
- pulsating Exhaust gas flow are at the exhaust pipe 18 more in the longitudinal direction of the Exhaust pipe 18 extending slots 40 and 42, respectively.
- the slots 40 stand with the from the inner surface of the sound box 24, the outer surface the exhaust pipe 18 and the outer surface of the sound absorber 32 limited gas volume in fluid communication.
- Connect the slots 42 the exhaust pipe 18 with the interior of the sealed-off to the outside absorber housing 30. Through the slots 40 and 42 can through the exhaust pipe 18 flowing exhaust gas flow with the gas column in the resonator 26 and with the volume of gas contained in the sound absorber 32 for vibration transmission communicate.
- FIG. 2 and 3 are sections along the section lines shown in FIG. 1 II-II and III-III shown.
- 2 shows the section II-II through the exhaust pipe 18 and the unexpanded portion 28 of the sound box 24, while Fig. 3 shows the section III-III through the sound box 24, the sound absorber 32 and the exhaust pipe 18 shows.
- the volume of the resonator 26 in the region of the unexpanded portion 28 of the resonator 24 is limited by the inner surface of the resonator 24 and the outer surface of the exhaust pipe 18 and defined in this sectional plane has a flow cross-section A 1 , over the entire length of the unexpanded portion 28 is approximately constant.
- the volume of the resonator 26 in the region of the widened portion 30 of the resonator 24 is limited by the inner surface of the resonator 24 and the outer surface of the sound absorber 32 and defines a flow cross-section A 2 in this sectional plane. Again, the flow cross-section A 2 remains approximately constant over the length of the widened portion 30.
- the radial distance of the outer surface of the exhaust pipe 18 to the inner surface resonating body 24 in the unexpanded portion 28 of the resonator 24 and the radial distance of the outer surface of the sound absorber 32 to the inner surface of the resonator 24 each chosen so that the two flow cross-sections A 1 and A 2 correspond to each other at least approximately.
- the number of slots 40 which connect the exhaust pipe 18 and the resonator 26 with each other, and their flow cross sections are again chosen so that they at least 0.8 to 1 times, preferably 0.9 times, the flow cross section A 1 and A 2 , which ensures that a sufficient volume flow of the exhaust gas can communicate with the resting in the resonator 24 gas column for vibration damping.
- an exhaust stream flows through the exhaust pipe 18, in which in particular due to the clocked operation of the internal combustion engine propagate resulting pressure pulses or sound waves.
- the exhaust gas flow flows into the muffler 10 according to the invention, communicates the Exhaust gas flow with the resting in the resonator 26 gas column, wherein the exhaust gas flow acting sound waves, the gas column in the resonator 26 to vibrate stimulate.
- the vibrating gas column excites the resonator 24 to swing, which due to its mass and its material properties Low-frequency components of the resulting vibrations dampens, so that in low-frequency sound waves in the exhaust gas stream damped become.
- they are present in the exhaust gas stream Sound waves via the slots 42 in the sound absorber 32 a. This is especially the energy of medium and high frequency sound waves due to friction in the Damping material is converted into heat. Then it flows like that Silenced exhaust gas flow from the muffler 10.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Abstract
Description
- Fig. 1
- eine schematische Schnittansicht eines erfindungsgemäßen Schalldämpfers mit einem Abgasrohr, einem Resonanzkörper und einem Schallabsorber zeigt,
- Fig. 2
- einen Schnitt entlang der Schnittlinie II-II in Fig. 1 zeigt, in dem der von dem Resonanzkörper und dem Abgasrohr begrenzte Strömungsquerschnitt in einer Ebene quer zur Längsrichtung des Schalldämpfers dargestellt ist, und
- Fig. 3
- einen Schnitt entlang der Schnittlinie III-III in Fig. 1 zeigt, in dem der von dem Resonanzkörper und dem Schallabsorber begrenzte Strömungsquerschnitt in einer zweiten Ebene quer zur Längsrichtung des Schalldämpfers dargestellt ist.
- 10
- Schalldämpfer
- 12
- Schalldämpfergehäuse
- 14
- Abdeckung
- 16
- Abdeckung
- 18
- Abgasrohr
- 20
- Öffnung
- 22
- Öffnung
- 24
- Resonanzkörper
- 26
- Resonator
- 28
- zylindrischer Abschnitt
- 30
- aufgeweiteter zylindrischer Abschnitt
- 32
- Schallabsorber
- 34
- Absorbergehäuse
- 36
- Dämpfungsmaterial
- 38
- Erhebungen
- 40
- Schlitze
- 42
- Schlitze
- A1
- Strömungsquerschnitt im nicht aufgeweiteten Abschnitt 28
- A2
- Strömungsquerschnitt im aufgeweiteten Abschnitt 30
Claims (12)
- Schalldämpfer für eine Abgasanlage eines Kraftfahrzeuges, mit einem Schalldämpfergehäuse (12), durch das ein Abgasrohr (18) zum Hindurchleiten schallzudämpfender Abgasströme hindurchführt, wobei das Abgasrohr (18) mit einem im Schalldämpfergehäuse (12) angeordneten Resonator (26) sowie einem im Schalldämpfergehäuse (12) angeordneten Schallabsorber (32) in Strömungsverbindung steht,
dadurch gekennzeichnet, dass als Resonator (26) ein das Abgasrohr (18) in dessen Umfangsrichtung umschließender und beabstandet zum Abgasrohr (18) angeordneter, rohrförmiger Resonanzkörper (24) dient, in dessen offenes Ende der Schallabsorber (32) zumindest teilweise eingeführt ist. - Schalldämpfer nach Anspruch 1, dadurch gekennzeichnet, dass der Resonanzkörper (24) mit seinem anderen Ende an der Innenseite des Schalldämpfergehäuses (12) oder an der Außenoberfläche des Abgsrohres (18) befestigt ist.
- Schalldämpfer nach Anspruch 1 oder 2, dadurch gekennzeichnet, der Abstand der Innenoberfläche des Resonanzkörpers (24) zur Außenoberfläche des Abgasrohres (18) in Umfangsrichtung des Abgasrohres (18) betrachtet zumindest annähernd konstant ist, wobei der Abstand vorzugsweise auch in Längsrichtung des Resonanzkörpers (24) betrachtet zumindest abschnittsweise konstant ist.
- Schalldämpfer nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, dass das Abgasrohr (18) und der Resonanzkörper (24) einen zumindest annähernd kreisrunden Querschnitt aufweisen und der rohrförmige Resonanzkörper (24) konzentrisch zum Abgasrohr (18) angeordnet ist.
- Schalldämpfer nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der Schallabsorber (32) das Abgasrohr (18) in dessen Umfangsrichtung vollständig umschließt und an diesem befestigt ist.
- Schalldämpfer nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der Schallabsorber (32) ein auf das Abgasrohr (18) aufgeschobenes Absorbergehäuse (34) aufweist, dessen mit dem Abgasrohr (18) in Strömungsverbindung stehender Innenraum gegenüber dem Schalldämpfergehäuse (12) zumindest annähernd gasdicht ist, und der mit einem Dämpfungsmaterial (36) zur Schallabsorbierung gefüllt ist.
- Schalldämpfer nach Anspruch 6, dadurch gekennzeichnet, dass das Absorbergehäuse (34) ein das Abgasrohr (18) umschließendes Rohrstück ist, welches an seinen Enden verschlossen und an dem Abgasrohr (18) befestigt ist.
- Schalldämpfer nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Resonanzkörper (24) an seinem offenen Ende so aufgeweitet ist, dass in einer Ebene quer zur Längsrichtung des Resonanzkörpers (24) betrachtet der in der Ebene von der Innenoberfläche des Resonanzkörpers (24) und der Außenoberfläche des Schallabsorbers (32) begrenzte Strömungsquerschnitt (A2) zumindest annähernd dem Strömungsquerschnitt (A1) entspricht, der von der Innenoberfläche des Resonanzkörpers (24) und der Außenoberfläche des Abgasrohres (18) in einer parallelen zweiten Ebene betrachtet begrenzt ist.
- Schalldämpfer nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass der Resonanzkörper (24) und/oder der Schallabsorber (32) durch mehrere Öffnungen, vorzugsweise Schlitze (40, 42), mit dem Abgasrohr (18) in Strömungsverbindung stehen.
- Schalldämpfer nach Anspruch 9, dadurch gekennzeichnet, dass die Summe der Strömungsquerschnitte der mit dem Resonanzkörper (24) in Strömungsverbindung stehenden Öffnungen (40) am Abgasrohr (18) dem 0,8 bis 1-fachen des in einer Ebene quer zur Längsrichtung des Resonanzkörpers (24) betrachteten Strömungsquerschnittes (A1, A2) entspricht, der von der Innenoberfläche des Resonanzkörpers (24) und der Außenoberfläche des Abgasrohres (18) begrenzt ist.
- Schalldämpfer nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass am oder nahe dem offenen Ende des Resonanzkörpers (24) radial nach innen abstehende Erhebungen (38) vorgesehen sein, wobei die Höhe jeder Erhebung (38) vorzugsweise dem halben Abstand des zwischen der Innenoberfläche des Resonanzkörpers (24) und der Außenoberfläche des Schallabsorbers (32) verbleibenden Spaltes entspricht, in den die Erhebung (38) ragt.
- Abgasanlage für ein Kraftfahrzeug, mit einem Schalldämpfer (10) nach einem der Ansprüche 1 bis 11.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003133645 DE10333645A1 (de) | 2003-07-24 | 2003-07-24 | Schalldämpfer sowie Abgasanlage |
DE10333645 | 2003-07-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1500798A1 true EP1500798A1 (de) | 2005-01-26 |
EP1500798B1 EP1500798B1 (de) | 2016-09-28 |
Family
ID=33483040
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04015174.8A Active EP1500798B1 (de) | 2003-07-24 | 2004-06-29 | Schalldämpfer sowie Abgasanlage |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1500798B1 (de) |
DE (1) | DE10333645A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2534343B1 (de) * | 2010-02-11 | 2017-03-15 | Faurecia Emissions Control Technologies, USA, LLC | Kunststoffauspuff mit helmholtz-kammer |
CN107327650A (zh) * | 2017-08-01 | 2017-11-07 | 北京市劳动保护科学研究所 | 一种管道消声器及具有该消声器的管道系统 |
EP2857748B1 (de) * | 2013-10-03 | 2019-11-13 | Poujoulat | Schalldämmvorrichtung für ein Rauchgasabzugsrohr eines Heizkessels |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011114351A1 (de) * | 2011-09-27 | 2014-06-12 | Mann + Hummel Gmbh | Abgasschalldämpfer |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB403651A (en) * | 1931-06-20 | 1933-12-20 | Burgess Lab Inc C F | Silencer for gaseous currents |
US2115103A (en) * | 1936-12-21 | 1938-04-26 | Buffalo Pressed Steel Company | Muffler |
US3020095A (en) * | 1957-12-16 | 1962-02-06 | Diehl Kg | Track chain for vehicles |
GB1522999A (en) * | 1975-12-20 | 1978-08-31 | Saab Scania Ab | Silencers for damping sound waves in gases |
DE3509033A1 (de) * | 1985-03-13 | 1986-09-18 | Müller - BBM GmbH, 8033 Planegg | Schalldaempfer |
DE8806069U1 (de) * | 1988-05-06 | 1988-06-30 | Roth-Technik Gmbh, 7560 Gaggenau, De | |
US5783780A (en) * | 1995-11-27 | 1998-07-21 | Nissan Motor Co., Ltd | Sound absorption structure |
EP0802308B1 (de) | 1996-04-18 | 2001-03-21 | HEINRICH GILLET GMBH & CO. KG | Schalldämpfer |
-
2003
- 2003-07-24 DE DE2003133645 patent/DE10333645A1/de not_active Ceased
-
2004
- 2004-06-29 EP EP04015174.8A patent/EP1500798B1/de active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB403651A (en) * | 1931-06-20 | 1933-12-20 | Burgess Lab Inc C F | Silencer for gaseous currents |
US2115103A (en) * | 1936-12-21 | 1938-04-26 | Buffalo Pressed Steel Company | Muffler |
US3020095A (en) * | 1957-12-16 | 1962-02-06 | Diehl Kg | Track chain for vehicles |
GB1522999A (en) * | 1975-12-20 | 1978-08-31 | Saab Scania Ab | Silencers for damping sound waves in gases |
DE3509033A1 (de) * | 1985-03-13 | 1986-09-18 | Müller - BBM GmbH, 8033 Planegg | Schalldaempfer |
DE8806069U1 (de) * | 1988-05-06 | 1988-06-30 | Roth-Technik Gmbh, 7560 Gaggenau, De | |
US5783780A (en) * | 1995-11-27 | 1998-07-21 | Nissan Motor Co., Ltd | Sound absorption structure |
EP0802308B1 (de) | 1996-04-18 | 2001-03-21 | HEINRICH GILLET GMBH & CO. KG | Schalldämpfer |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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EP2534343B1 (de) * | 2010-02-11 | 2017-03-15 | Faurecia Emissions Control Technologies, USA, LLC | Kunststoffauspuff mit helmholtz-kammer |
EP2857748B1 (de) * | 2013-10-03 | 2019-11-13 | Poujoulat | Schalldämmvorrichtung für ein Rauchgasabzugsrohr eines Heizkessels |
CN107327650A (zh) * | 2017-08-01 | 2017-11-07 | 北京市劳动保护科学研究所 | 一种管道消声器及具有该消声器的管道系统 |
Also Published As
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EP1500798B1 (de) | 2016-09-28 |
DE10333645A1 (de) | 2005-02-24 |
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