DE626889C - Silencer for the exhaust of internal combustion engines - Google Patents
Silencer for the exhaust of internal combustion enginesInfo
- Publication number
- DE626889C DE626889C DEK128270D DEK0128270D DE626889C DE 626889 C DE626889 C DE 626889C DE K128270 D DEK128270 D DE K128270D DE K0128270 D DEK0128270 D DE K0128270D DE 626889 C DE626889 C DE 626889C
- Authority
- DE
- Germany
- Prior art keywords
- sound
- pipe
- absorbing
- exhaust
- chambers
- 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
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
- 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
- F01N2490/00—Structure, disposition or shape of gas-chambers
- F01N2490/15—Plurality of resonance or dead chambers
- F01N2490/155—Plurality of resonance or dead chambers being disposed one after the other in flow direction
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Description
1-ΪΞΓ. w-l. Eig1-ΪΞΓ. w-l. Prop
AUSGEGEBENAMISSUED
2 7. Dez. 19372 Dec. 7, 1937
REICHSPATENTAMTREICH PATENT OFFICE
PATENTSCHRIFT PPATENT PUBLICATION P
JVi 626 889 KLASSE 46 c6 GRUPPE loiJVI CLASS 626 889 46 c 6 GROUP loi
K1282701/460» Tag der Bekanntmachung über die Erteilung des Patents: 13. Februar 1936K1282701 / 460 » Date of publication of the patent grant: February 13, 1936
S)r.-3ng. Ulrich Schmidt in Berlin-Wilmersdorf Schalldämpfer für den Auspuff von BrennkraftmaschinenS) r.-3ng. Ulrich Schmidt in Berlin-Wilmersdorf Silencers for the exhaust of internal combustion engines
Patentiert im Deutschen Reiche vom 18. Dezember 1932 abPatented in the German Empire on December 18, 1932
Die Erfindung betrifft einen Schalldämpfer für den Auspuff von Brennkraftmaschinen, bei welchem in bekannter Weise ein mittleres, mit Austrittsöffnungen versehenes Abgasrohr von mehreren hintereinandergeschalteten Kammern umgeben ist, die mit dem Innern des Abgasrohres durch Öffnungen verbunden sind. Die Kammern sind dabei mit schalldämpfenden Stoffen völlig ausgefüllt. Bei diesem Schalldämpfer kann durch Öl oder Rußteile sowie durch das Verbrennungswasser der Abgase verhältnismäßig schnell eine Verschmutzung und Verkrustung der die Kammern ausfüllenden schalldämpfenden Stoffe.The invention relates to a muffler for the exhaust of internal combustion engines, in which, in a known manner, a central exhaust pipe provided with outlet openings is surrounded by several chambers connected in series, which are connected to the interior of the Exhaust pipe are connected by openings. The chambers are thereby with sound-absorbing Substances completely filled. With this silencer, oil or soot particles as well as the combustion water can cause the exhaust gases Soiling and encrustation of the sound-absorbing substances filling the chambers relatively quickly.
in dem das Abgasrohr unmittelbar umgebenden Teil erfolgen, da sie unmittelbar in dem Bereich der durch die Verbindungsöffnungen in die Kammern eintretenden Gasströme liegen. Wenn auch die durch die Verbindungs-Öffnungen in die Kammern eintretenden Gasmengen verhältnismäßig gering sind, so können doch die geschilderten Nachteile, die. ein Unwirksamwerden der schalldämpfenden Stoffe bedingen, sich verhältnismäßig bald bemerkbar machen.in the part immediately surrounding the exhaust pipe, as they are directly in the Area of the gas flows entering the chambers through the connecting openings. Even if the amount of gas entering the chambers through the connection openings are relatively low, the disadvantages described, the. the ineffectiveness of the sound-absorbing materials require themselves relatively soon to make noticable.
Gemäß der Erfindung wird zur Vermeidung dieser Nachteile jede mit schalldämpfenden Stoffen ausgefüllte Kammer von einen) Kanal durchsetzt, der sich an die Öffnung oder die Öffnungen des mittleren Abgasrohres anschließt und die Kammer in ihrer ganzen Länge senkrecht zum Abgasstrom durchsetzt. Da die verhältnismäßig geringen Abgasmengen, die in die Kammern eintreten.According to the invention, to avoid these disadvantages, each with sound-absorbing Substances-filled chamber penetrated by a) channel, which extends to the opening or the openings of the middle exhaust pipe connects and the entire length of the chamber is perpendicular to the exhaust gas flow interspersed. Because the relatively small amounts of exhaust gas that enter the chambers.
nun nicht mehr oder doch nur geringfügig mit den schalldämpfenden Stoffen in Berührung kommen, können diese nicht mehr so leicht verschmutzt oder verkrustet werden, so daß die Gebrauchsdauer des Schalldämpfers dadurch wesentlich erhöht wird. Gemäß der Erfindung kann ferner der die Kammern durchsetzende Kanal von einem mit Durchbrechungen versehenen Rohr gebildet sein, das an die Öffnungen des mittleren Abgasrohres "angeschlossen ist. Bei dem Schalldämpfer gemäß der Erfindung sind dann nur die Seitenw.ände der Schall dämpf ungskammern mit schalldämpfenden Stoffen belegt, während innerhalb der Schalldämpfungskammern ein senkrecht zum Abgasstrom stehender, die Schalldämpfungskammern in ihrer ganzen Länge durchsetzender Kanal vorge- · sehen ist, der durch Öffnungen im Abgasrohr mit dessen Innern verbunden ist. Ein so ausgebildeter Schalldämpfer hat neben einer außerordentlich guten schalldämpfenden Wirkung eine lange Gebrauchsdauer, und es wird vermieden, daß der Schalldämpfer zur ■ Reinigung der verschmutzten oder verkrusteten Teile von den Füllstoffen öfters geöffnet werden muß.now no longer or only slightly in contact with the sound-absorbing materials come, these can no longer be so easily soiled or encrusted, so that the service life of the silencer is thereby significantly increased. According to the In accordance with the invention, the channel passing through the chambers can also be one with perforations provided pipe, which is connected to the openings of the middle exhaust pipe ". In the muffler According to the invention, only the Seitenw.ände of the sound damping chambers are then Covered with sound-absorbing materials while inside the sound-absorbing chambers a duct standing perpendicular to the exhaust gas flow and penetrating the soundproofing chambers over their entire length is provided. can be seen, which is connected to the interior through openings in the exhaust pipe. Such a trained silencer has an extraordinarily good sound-absorbing effect a long service life, and it is avoided that the muffler to ■ Cleaning of the soiled or encrusted parts from the fillers opened frequently must become.
In der" Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt. Es zeigt In the "drawing, an embodiment of the invention is shown. It shows
Abb. r einen Schalldämpfer mit vomHauptrohr abgezweigter, senkrecht zur Hauptrohrachse liegender schalldämpfender Nebenkammer, Fig. R a silencer with from the main pipe branched, sound-absorbing secondary chamber perpendicular to the main pipe axis,
Abb. 2 einen Schalldämpfer mit um dasFig. 2 a silencer with around the
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK128270D DE626889C (en) | 1932-12-18 | 1932-12-18 | Silencer for the exhaust of internal combustion engines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK128270D DE626889C (en) | 1932-12-18 | 1932-12-18 | Silencer for the exhaust of internal combustion engines |
Publications (1)
Publication Number | Publication Date |
---|---|
DE626889C true DE626889C (en) | 1937-12-27 |
Family
ID=7246579
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEK128270D Expired DE626889C (en) | 1932-12-18 | 1932-12-18 | Silencer for the exhaust of internal combustion engines |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE626889C (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE935647C (en) * | 1950-02-12 | 1955-11-24 | Eberspaecher J | Blower for air delivery for heating and ventilation of motor vehicles |
DE1292669B (en) * | 1963-07-17 | 1969-04-17 | Aoi Katashi | Muffler for internal combustion engines, in particular for motor vehicles |
DE10103739A1 (en) * | 2001-01-26 | 2002-08-01 | Mahle Filtersysteme Gmbh | Exhaust silencer comprises an outlet end of an inlet pipe and/or an inlet end of an outlet pipe protruding in a free-standing manner into a hollow chamber |
DE102004057413A1 (en) * | 2004-11-26 | 2006-06-29 | Mahle Filtersysteme Gmbh | Muffler for internal combustion engine, has housing arranged at airborne sound conveying pipe during operation of internal combustion engine and including damper body with set of hollow bodies that are connected with each other |
EP1826369B1 (en) * | 2006-02-23 | 2016-05-18 | Eberspächer Exhaust Technology GmbH & Co. KG | Silencer for an exhaust system |
-
1932
- 1932-12-18 DE DEK128270D patent/DE626889C/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE935647C (en) * | 1950-02-12 | 1955-11-24 | Eberspaecher J | Blower for air delivery for heating and ventilation of motor vehicles |
DE1292669B (en) * | 1963-07-17 | 1969-04-17 | Aoi Katashi | Muffler for internal combustion engines, in particular for motor vehicles |
DE10103739A1 (en) * | 2001-01-26 | 2002-08-01 | Mahle Filtersysteme Gmbh | Exhaust silencer comprises an outlet end of an inlet pipe and/or an inlet end of an outlet pipe protruding in a free-standing manner into a hollow chamber |
DE10103739B4 (en) * | 2001-01-26 | 2010-01-14 | Mahle Filtersysteme Gmbh | silencer |
DE102004057413A1 (en) * | 2004-11-26 | 2006-06-29 | Mahle Filtersysteme Gmbh | Muffler for internal combustion engine, has housing arranged at airborne sound conveying pipe during operation of internal combustion engine and including damper body with set of hollow bodies that are connected with each other |
EP1826369B1 (en) * | 2006-02-23 | 2016-05-18 | Eberspächer Exhaust Technology GmbH & Co. KG | Silencer for an exhaust system |
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