DE731808C - Sound absorption for very high vibrations of the exhaust gases from internal combustion engines, in which the exhaust gases are divided - Google Patents
Sound absorption for very high vibrations of the exhaust gases from internal combustion engines, in which the exhaust gases are dividedInfo
- Publication number
- DE731808C DE731808C DEE54261D DEE0054261D DE731808C DE 731808 C DE731808 C DE 731808C DE E54261 D DEE54261 D DE E54261D DE E0054261 D DEE0054261 D DE E0054261D DE 731808 C DE731808 C DE 731808C
- Authority
- DE
- Germany
- Prior art keywords
- exhaust gases
- line
- internal combustion
- combustion engines
- vibrations
- 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
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Description
Schalldämpfung für sehr hohe Schwingungen der Abgase von Brennkraftmaschinen, bei denen eine Teilung der Abgase stattfindet Gegenstand der Erfindung ist eine Schalldämpfung für sehr hohe Schwingungen der Abgase von Brennkraftmaschinen, bei denen eine Teilung der Abgase stattfindet.Soundproofing for very high vibrations in the exhaust gases from internal combustion engines, in which a division of the exhaust gases takes place Soundproofing for very high vibrations in the exhaust gases from internal combustion engines where a division of the exhaust gases takes place.
Sehr hohe Schallschwingungen haben die Eigenschaft, daß sie z. B. aus einem gelochten Rohr nicht mehr in den das Rohr umgebenden Schallschluckstoff eintreten. Sie lösen sich nämlich von der Wand ab und durchlaufen, zu einer Art Bündel vereinigt, -das Rohr etwa in der Mitte. Dieses Bündel aufzuspalten und wieder an die Wand zu bringen, ist kaum möglich. Es ist in anderem Zusammenhang schon bekanntgeworden, die Abgase aus bestimmten Gründen in zwei verschiedenen Stromwegen abzuleiten, ohne daß damit die der Erfindung zugrunde gelegte Aufgabe zu lösen wäre.Very high sound vibrations have the property that they z. B. from a perforated pipe no longer into the sound absorbing material surrounding the pipe enter. They detach themselves from the wall and run through to a kind of Bundles united, -the tube about in the middle. To split this bundle up again and again to put on the wall is hardly possible. It has already become known in another context, to divert the exhaust gases in two different flow paths for certain reasons without that this would solve the problem on which the invention is based.
Erfindungsgemäß wird nun eine Schalldämpfung für sehr hohe Schwingungen der Abgase von Brennkraftmaschinen so ausgestaltet, daß die Abgase nach dem Austritt aus dem Motor unmittelbar gegen eine am Leitungsende vorgesehene, an sich bekannte Absorptionsmasse ,geführt werden, in der die hohen Schwingungen gelöscht werden, während .die mittleren und tiefen Schwingungen durch die zur Abgasleitung um einen Winkel gleich oder kleiner als 9o° abgebogene Fortsetzung der Leitung abgeleitet werden. , In weiterer vorteilhafter Ausgestaltung der Erfindung ist an die Abgasleitung ein mit an sich bekanntem Absorptionsstoff gefüllter Behälter, Patrone o. dgl. angeschlossen, während .die Fortsetzung der Leitung an der Anschlußstelle des Behälters, Patrone o. dgl. mit der Zuleitung einen spitzen oder rechten Winkel bildet und in einen Schalldämpfer üblicher Bauart mündet.According to the invention there is now a sound attenuation for very high vibrations the exhaust gases from internal combustion engines designed so that the exhaust gases after the exit from the engine directly against a known per se provided at the end of the line Absorption mass, in which the high vibrations are extinguished, while .the medium and low vibrations caused by the exhaust pipe by one Angle equal to or less than 9o ° bent continuation of the line derived will. In a further advantageous embodiment of the invention, the exhaust line a with on well-known absorbent filled container, cartridge o. The like. Connected, while. The continuation of the line at the connection point of the container, cartridge or the like. With the supply line an acute or right angle forms and opens into a muffler of conventional design.
In der Zeichnung zeigt Abb. i eine allgemeine Anordnung, Abb. 2 ein besonderes Beispiel.In the drawing, Fig. I shows a general arrangement, Fig. 2 a particular example.
An eine Abgasleitung i schließt, in der Richtung der Leitung liegend, ein Behälter z an, der mit Absorptionsstoff 3 gefüllt ist. An dem Ende der Leitung i ist eine Abzweigleitung 4. unter einem spitzen Winkel zur Leitung i angeordnet. Die in Pfeilrichtung 5 strömenden Abgase, die sehr hohe Schwingungen enthalten, gelangen am Ende der Leitung 1 sowohl an den Absorptionsstoff als auch an die Abzweigung ¢. Die hohen Frequenzen werden in dem Behälter 2 gelöscht. v-ährend die verbleibenden mittleren und tiefen Schwing ungen mit dem in die Leitung 4. abgelenkten Abgasstrom in Richtung des Pfeiles 6 abgeführt werden. Diese können dann. auf bekannte Weise durch einen auf diese normalen Frequenzen abgestimmten Schalldämpfer aasgedämpft werden.Connects to an exhaust pipe i, lying in the direction of the pipe, a container z which is filled with absorbent 3. At the end of the line i a branch line 4 is arranged at an acute angle to line i. The exhaust gases flowing in the direction of arrow 5, which contain very high vibrations, arrive at the end of the line 1 both at the absorbent material and at the junction ¢. The high frequencies are canceled in the container 2. v-uring the remaining medium and low vibrations with the exhaust gas flow diverted into line 4 be discharged in the direction of arrow 6. These can then. in a familiar way aasdamped by a silencer tuned to these normal frequencies will.
In der Abb. 2 ist der Fall eines Dreizylindermotors dargestellt, bei dem an die Abgasleitung 7 eine mit Absorptionsstoff gefüllte 'Patrone 8 angeschraubt oder angeflanscht ist. An diesem Ende der Leitung zweigt unter einem spitzen Winkel die Leitung g ab, die zu einem Schalldämpfer io führt, der auf normale Frequenzen stimmt ist.In Fig. 2 the case of a three-cylinder engine is shown at a cartridge 8 filled with absorbent is screwed to the exhaust pipe 7 or is flanged. At this end the line branches off at an acute angle the line g from, which leads to a silencer io, which on normal frequencies is true.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEE54261D DE731808C (en) | 1940-12-10 | 1940-12-10 | Sound absorption for very high vibrations of the exhaust gases from internal combustion engines, in which the exhaust gases are divided |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEE54261D DE731808C (en) | 1940-12-10 | 1940-12-10 | Sound absorption for very high vibrations of the exhaust gases from internal combustion engines, in which the exhaust gases are divided |
Publications (1)
Publication Number | Publication Date |
---|---|
DE731808C true DE731808C (en) | 1943-02-24 |
Family
ID=7081921
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEE54261D Expired DE731808C (en) | 1940-12-10 | 1940-12-10 | Sound absorption for very high vibrations of the exhaust gases from internal combustion engines, in which the exhaust gases are divided |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE731808C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1019510B (en) * | 1953-12-19 | 1957-11-14 | Porsche Kg | An ejector system consisting of an exhaust gas nozzle arranged in the inlet part of a mixing chamber and a diffuser connected downstream of the mixing chamber and equipped with means for sound absorption |
-
1940
- 1940-12-10 DE DEE54261D patent/DE731808C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1019510B (en) * | 1953-12-19 | 1957-11-14 | Porsche Kg | An ejector system consisting of an exhaust gas nozzle arranged in the inlet part of a mixing chamber and a diffuser connected downstream of the mixing chamber and equipped with means for sound absorption |
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