DE1031055B - Container with sound absorption filling and guide channel for pulsating gas flow, in particular sound absorbers for internal combustion engines - Google Patents
Container with sound absorption filling and guide channel for pulsating gas flow, in particular sound absorbers for internal combustion enginesInfo
- Publication number
- DE1031055B DE1031055B DEE11245A DEE0011245A DE1031055B DE 1031055 B DE1031055 B DE 1031055B DE E11245 A DEE11245 A DE E11245A DE E0011245 A DEE0011245 A DE E0011245A DE 1031055 B DE1031055 B DE 1031055B
- Authority
- DE
- Germany
- Prior art keywords
- perforated
- container
- internal combustion
- gas flow
- combustion engines
- 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
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
-
- 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
-
- 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
- F01N2470/24—Concentric tubes or tubes being concentric to housing, e.g. telescopically assembled
-
- 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
- F01N2530/00—Selection of materials for tubes, chambers or housings
- F01N2530/26—Multi-layered walls
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Description
DEUTSCHESGERMAN
Die Erfindung ist darauf gerichtet, die Gaskanäle in schluckstoffgefüllten Behältern, insbesondere Schalldämpfern, so gegen Verlust des Schallschluckstoffes zu sichern, daß der einmal vorgegebene Schluckstoffwiderstand und damit die akustische Abstimmung aufrechterhalten wird.The invention is directed to the gas ducts in containers filled with absorbent, in particular silencers, to secure against loss of the sound absorbing substance that the given resistance of the absorbing substance and so that the acoustic coordination is maintained.
Es sind Schalldämpfer mit verlustlosem glattem Durchgang bekannt, bei denen die mit Schallschluckstoff versehenen Gaskanäle oder Räume perforiert sind und bei denen zwischen den perforierten Flächen und dem Schallschluckstoff ein meist feinmaschiges Netz angeordnet ist. Selbst bei feinster Ausführung der Netze verändern derartige Schalldämpfer bereits nach kurzer Betriebszeit schon infolge Verlust an Schallschluckstoff ihren akustischen Schluckstoffwiderstand und damit ihre innere Abstimmung.There are known sound absorbers with a lossless smooth passage, in which those with sound absorbing material provided gas channels or spaces are perforated and those between the perforated surfaces and A mostly fine-meshed network is arranged on the sound-absorbing material. Even with the finest execution of the Networks change such silencers after a short period of operation due to the loss of sound absorbing material their acoustic resistance to absorption and thus their internal coordination.
Die Erfindung hat sich nun zur Aufgabe gestellt, die den Schallschluckstoff zerstörenden Schwingungen der Netze zu unterbinden, die unter Umständen auch ein Zusammensacken des Schallschluckstoffes bei größeren Volumina hervorrufen können.The invention has now set itself the task of eliminating the vibrations that destroy the sound-absorbing substance to prevent the nets, which may also cause the sound absorbing substance to collapse can cause larger volumes.
Zu diesem Zweck wird das sich an eine perforierte Wand anlegende engmaschige Netz auch auf seiner zur Schallschluckstoffüllung hin gelegenen Seite mit einer perforierten Wand bedeckt, so daß das Netz also zwischen zwei perforierten Wänden gehalten wird.For this purpose, the close-meshed network, which is placed against a perforated wall, is also placed on his the side facing the sound absorbing material is covered with a perforated wall, so that the network held between two perforated walls.
Die Doppelwände, die vorzugsweise mit Rundlöchern versehen sind, übernehmen als starkwandige Gebilde die erforderliche Festigkeit der Kanal- bzw. Raumabschlüsse. Weiterhin wird erfindungsgemäß vorgesehen, daß das Netz insbesondere bei grob perforierten Wänden zwischen zwei starkwandigen, gleich oder in bezug auf die Größe und gegebenenfalls den Abstand der Löcher verschieden perforierten Wänden angeordnet ist.The double walls, which are preferably provided with round holes, take over as thick-walled Form the required strength of the channel or room closures. Furthermore, according to the invention provided that the network between two thick-walled walls, especially in the case of roughly perforated walls, is the same or with regard to the size and optionally the spacing of the holes differently perforated walls is arranged.
In der Zeichnung sind Ausführungsbeispiele des Erfindungsgegenstandes schematisch dargestellt. Es zeigtExemplary embodiments of the subject matter of the invention are shown in the drawing shown schematically. It shows
Fig. 1 einen Behälter mit glattem Durchgang mit radial beaufschlagtem Schluckstoff,Fig. 1 shows a container with a smooth passage with radially loaded absorbent,
Fig. 2 einen Behälter mit radial und axial beaufschlagtem Schluckstoff.Fig. 2 shows a container with radially and axially acted upon absorbent.
Zwischen dem Kanal 1, der einen sogenannten lochperforierten glatten Durchgang 2 besitzt, und dem Behältermantel 3 befindet sich der Schluckstoff 4. Der perforierte Kanal 1 ist umhüllt von dem feinmaschigen Netz 5, welches seinerseits vom perforierten Rohr 6 umhüllt wird. Das Netz 5 erstreckt sich über den ganzen Bereich der perforierten Stellen und des dort angrenzenden Schluckstoffes 4.Between the channel 1, which has a so-called hole perforated smooth passage 2, and the container jacket 3 is the absorbing material 4. The perforated channel 1 is covered by the fine-mesh net 5, which in turn is enveloped by the perforated pipe. 6 The network 5 extends over the entire area of the perforated points and the absorbent 4 adjoining there.
In Fig. 1 ist der Kanal 1 an seinem ganzen Umfang innerhalb des Behälters 3 perforiert.In FIG. 1, the channel 1 is perforated within the container 3 over its entire circumference.
Bei der in Fig. 2 gezeigten Behälterausführung mündet das Eintrittsrohr 7 in eine erste leere Kammer 12 mit einem perforierten Abschluß 11, wobei derAus-Behälter mit SchallschluckstoffüllungIn the case of the container design shown in FIG. 2, the inlet pipe 7 opens into a first empty chamber 12 with a perforated closure 11, the out container with sound absorbing material filling
und Führungskanal für pulsierendeand guide channel for pulsating
Gasströmung, insbesondere SchalldämpferGas flow, especially silencers
für Brennkraftmaschinenfor internal combustion engines
Anmelder:Applicant:
Fa. J. Eberspächer,
Eßlingen/Neckar, Eberspächerstr. 24J. Eberspächer,
Eßlingen / Neckar, Eberspächerstr. 24
Dr.-Ing. Herbert Martin und Walter Bauerschmidt,Dr.-Ing. Herbert Martin and Walter Bauerschmidt,
Eßlingen/Neckar,
sind als Erfinder genannt wordenEsslingen / Neckar,
have been named as inventors
trittskanal 8 koaxial zum Eintrittsrohr 7 an die erste Kammer angeschlossen, perforiert und beiderseits offen ist. Die Perforation 2 befindet sich im Bereich der zweiten Kammer, die mit Schluckstoff 4 ausgefüllt ist. Zwischen der ersten und zweiten Kammer befindet sich eine Querwand aus einem perforierten Teil 9, so daß der Schluckstoff 4 auch frontal beaufschlagt wird. Das Netz 5 liegt an der Perforation 2 des Austrittskanals 8 und an der Querwand9 an; es wird wiederum von einem perforierten Rohr 6 umhüllt bzw. durch eine perforierte Querwand gegen den Schallschluckstoff abgedeckt.outlet channel 8 is connected coaxially to the inlet pipe 7 to the first chamber, perforated and open on both sides. The perforation 2 is located in the area of the second chamber, which is filled with absorbent 4. Between the first and second chambers there is a transverse wall made of a perforated part 9, so that the absorbent 4 is also acted on from the front. The network 5 rests against the perforation 2 of the outlet channel 8 and against the transverse wall 9; it is in turn enveloped by a perforated tube 6 or covered against the sound-absorbing material by a perforated transverse wall.
Claims (2)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEE11245A DE1031055B (en) | 1955-09-06 | 1955-09-06 | Container with sound absorption filling and guide channel for pulsating gas flow, in particular sound absorbers for internal combustion engines |
FR1158817D FR1158817A (en) | 1955-09-06 | 1956-08-21 | Protective device for maintaining the acoustic resistance of absorbent substances and the acoustic tuning of vessels subjected to oscillatory stresses, filled with absorbent substances for pulsating flow |
GB2721256A GB841828A (en) | 1955-09-06 | 1956-09-05 | "improvements relating to casings for the pulsating flow of gases" |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEE11245A DE1031055B (en) | 1955-09-06 | 1955-09-06 | Container with sound absorption filling and guide channel for pulsating gas flow, in particular sound absorbers for internal combustion engines |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1031055B true DE1031055B (en) | 1958-05-29 |
Family
ID=7068057
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEE11245A Pending DE1031055B (en) | 1955-09-06 | 1955-09-06 | Container with sound absorption filling and guide channel for pulsating gas flow, in particular sound absorbers for internal combustion engines |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE1031055B (en) |
FR (1) | FR1158817A (en) |
GB (1) | GB841828A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3941206A (en) * | 1974-05-08 | 1976-03-02 | Burgess Industries Incorporated | Noise attenuating snubber |
EP0074954A1 (en) * | 1981-03-20 | 1983-03-30 | Peabody Abc Corp | Sound attenuator. |
CN109424390A (en) * | 2017-08-30 | 2019-03-05 | 湖北福田专用汽车有限公司 | Silencing exhaust pipe device |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3175640A (en) * | 1961-04-19 | 1965-03-30 | Fukuo Saeki | Muffling devices for air handling systems |
US3209861A (en) * | 1963-10-28 | 1965-10-05 | Walker Mfg Co | Muffler with two longitudinally separated chambers |
US3688868A (en) * | 1971-08-26 | 1972-09-05 | Stephen J Gibel | Expansion chambered, fail-safe muffler |
US3688870A (en) * | 1971-08-26 | 1972-09-05 | Stephen J Gibel | Through-flow aspirator muffler |
US4314621A (en) * | 1979-03-07 | 1982-02-09 | Caterpillar Tractor Co. | Fluidborne noise attenuator |
EP0074220A3 (en) * | 1981-08-26 | 1984-05-16 | Lancaster Glass Fibre Limited | Improvements in or relating to inserts for silencers |
DE3205185C2 (en) * | 1982-02-13 | 1985-12-12 | Wilfried 6238 Hofheim Seitz | Method for producing a silencer filling for a muffler as well as silencer filling produced according to this method |
JP2003041923A (en) * | 2001-07-30 | 2003-02-13 | Honda Motor Co Ltd | Exhaust muffler |
EP1507071B2 (en) | 2003-08-11 | 2019-10-16 | Faurecia Emissions Control Technologies, Germany GmbH | Exhaust silencer |
CN104564241A (en) * | 2015-01-23 | 2015-04-29 | 安徽江淮汽车股份有限公司 | Exhaust muffler |
FR3060649B1 (en) * | 2016-12-19 | 2019-08-02 | Renault S.A.S | MOTOR VEHICLE EXHAUST LINE HAVING NOISE LIMITATION MEANS |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE665167C (en) * | 1935-12-09 | 1938-09-22 | Servais Silencers Ltd | Absorbent material for silencers |
GB495576A (en) * | 1937-05-22 | 1938-11-16 | Fernand Jiles Joseph Servais | Improvements in and relating to silencers for gaseous currents |
GB498533A (en) * | 1937-07-30 | 1939-01-10 | Francois Cementation Co Ltd | Improvements in or relating to silencers for exhaust and other gaseous currents |
US2583366A (en) * | 1948-02-09 | 1952-01-22 | Willard H Engels | Muffler with perforated cylinder containing inwardly and rearwardly inclined holes |
-
1955
- 1955-09-06 DE DEE11245A patent/DE1031055B/en active Pending
-
1956
- 1956-08-21 FR FR1158817D patent/FR1158817A/en not_active Expired
- 1956-09-05 GB GB2721256A patent/GB841828A/en not_active Expired
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE665167C (en) * | 1935-12-09 | 1938-09-22 | Servais Silencers Ltd | Absorbent material for silencers |
GB495576A (en) * | 1937-05-22 | 1938-11-16 | Fernand Jiles Joseph Servais | Improvements in and relating to silencers for gaseous currents |
GB498533A (en) * | 1937-07-30 | 1939-01-10 | Francois Cementation Co Ltd | Improvements in or relating to silencers for exhaust and other gaseous currents |
US2583366A (en) * | 1948-02-09 | 1952-01-22 | Willard H Engels | Muffler with perforated cylinder containing inwardly and rearwardly inclined holes |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3941206A (en) * | 1974-05-08 | 1976-03-02 | Burgess Industries Incorporated | Noise attenuating snubber |
EP0074954A1 (en) * | 1981-03-20 | 1983-03-30 | Peabody Abc Corp | Sound attenuator. |
EP0074954A4 (en) * | 1981-03-20 | 1983-08-01 | Peabody Abc Corp | Sound attenuator. |
CN109424390A (en) * | 2017-08-30 | 2019-03-05 | 湖北福田专用汽车有限公司 | Silencing exhaust pipe device |
Also Published As
Publication number | Publication date |
---|---|
FR1158817A (en) | 1958-06-19 |
GB841828A (en) | 1960-07-20 |
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