DE316082C - - Google Patents
Info
- Publication number
- DE316082C DE316082C DENDAT316082D DE316082DA DE316082C DE 316082 C DE316082 C DE 316082C DE NDAT316082 D DENDAT316082 D DE NDAT316082D DE 316082D A DE316082D A DE 316082DA DE 316082 C DE316082 C DE 316082C
- Authority
- DE
- Germany
- Prior art keywords
- cylinder
- channels
- flow
- cooling
- exhaust gases
- 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.)
- Active
Links
- 238000001816 cooling Methods 0.000 claims description 17
- 239000007789 gas Substances 0.000 claims description 11
- 238000004880 explosion Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 230000003584 silencer Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000010408 sweeping Methods 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000011872 intimate mixture Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000003252 repetitive Effects 0.000 description 1
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
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/05—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of air, e.g. by mixing exhaust with air
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Description
Die Erfindung betrifft einen 'Schalldämpfer für mehrzylindrige Erplosionsmotoren, insbesondere von Luftfahrzeugen, bei welchem ein kühlender Luftstrom zur Anwendung kommt, und bezweckt Verbesserungen, durch welche die Schalldämpfung gefördert und die hemmende Rückwirkung" auf den Motor vermindert wird.The invention relates to a 'muffler for multi-cylinder explosion engines, especially of aircraft, in which a cooling air flow is used, and aims at improvements by which the sound absorption promoted and the inhibiting reaction "reduced" on the engine will.
Es ist bei Schalldämpfern bekannt, einenIt is known to have one in silencers
ίο kühlenden Luftstrom anzuwenden, der am Ende des Kühlweges in die heißen Gase eingeleitet wird. Nach der vorliegenden Erfindung kommt der kühlende Luftstrom mit den heißen Gasen unmittelbar nach Eintritt der letzteren in den Auspuffzylinder in wärme- und schallausgleichende Berührung, und zwar unter Fortfall jeglicher Trennungswände. Die völlige .Vermischung beider Ströme tritt jedoch erst im Verlaufe des gemeinsamen und im wesentlichen ungehinderten Weiterströmens ein, so daß keine hemmende Rückwirkung auf den Motor stattfinden kann. Zu dem Zwecke erhält der an beiden Enden geschlossene Zylinder eine Einrtitts- und Austrittsdüse, zwischen denen ein Fangraum liegt, in welchen die Auspuffgase seitlich, und zwar im Winkel zur Strömungsrichtung der Kühlluft unmittelbar eintreten. Innerhalb dieses Fangraumes erhalten die Auspuffgase Gelegenheit, den Kühlstrom zu umfassen bzw.. einzuhüllen und sich dabei allmählich dessen Strömungsrichtung anzupassen und mit ihm eine innige Vermischung einzugehen. Zweckmäßig an dem Auspuffzylinder innerhalb des eigentlichen Fangraumes können Querwände angeordnet werden, die nur in den Umfassungsweg der Auspuffgase ragen, den Weg der Kühlluft jedoch nicht beeinträchtigen. Dadurch werden die Auspuffgase immer wieder in den Kühlstrom hineingedrängt und eine allmähliche Vermischung herbeigeführt. Der schon beim ersten Zusammentreffen der beiden sich im Winkel schneidenden Gasströme einsetzende Spannungs- und Temperaturausgleich wird durch dieses sich während des allmählichen Gleichrichtens immer wiederholende Auseinanderdrängen der Ströme bei unterschiedlichen Strömungsgeschwindigkeiten so gesteigert, daß das Gemisch schließlich völlig ohne Geräusch und abgekühlt aus der Vorrichtung heraustritt. Die wirksame Abkühlung der Auspuffgase läßt eine Erhitzung deri Auspuffrohre selbst bei ausgedehnter Fährt nicht aufkommen, und durch die erzielte wirksame Dämpfung des Auspuffgeräusches wird dem Gehör des Führers auch die kleinste Unregelmäßigkeit in der Arbeit der Motoren wahrnehmbar.ίο apply cooling air flow that is introduced into the hot gases at the end of the cooling path will. According to the present invention, the cooling air flow comes with the hot gases immediately after entering the the latter in the exhaust cylinder in heat- and sound-compensating contact, namely without any partition walls. However, the two currents are completely mixed only in the course of the common and essentially unhindered flow a, so that there can be no inhibitory reaction on the engine. For this purpose, the closed at both ends receives Cylinder an inlet and outlet nozzle, between which there is a trap chamber, in which the exhaust gases laterally, and enter directly at an angle to the direction of flow of the cooling air. Within This trap area gives the exhaust gases the opportunity to enclose the cooling flow or. envelop and gradually adapt to its direction of flow and with it to enter into an intimate mixture. Appropriately on the exhaust cylinder within the transverse walls can be arranged in the actual trap area, which are only in the circumferential path the exhaust gases protrude, but do not interfere with the path of the cooling air. This will keep the exhaust fumes pushed back into the cooling flow and brought about a gradual mixing. The tension and temperature equalization that already begins when the two gas streams intersect at an angle for the first time becomes through this repetitive during the gradual rectification Forcing the streams apart at different flow speeds so increased that the mixture finally comes out of the device completely without any noise and has cooled down. The effective cooling The exhaust gases allow the exhaust pipes to heat up even when driving for a long time does not arise, and is achieved by the effective damping of the exhaust noise even the slightest irregularity in the work of the engines to the driver's hearing perceptible.
Der Erfindungsgegenstand ist in der Zeichnung in einem Ausführungsbeispiel dargestellt, und zwar zeigt Fig. 1 eine schaubildliche Ansicht, und Fig. 2 einen Schnitt nach der Linie 2-2 der Fig. 1.The subject of the invention is shown in the drawing in an exemplary embodiment, 1 shows a perspective view, and FIG. 2 shows a section the line 2-2 of FIG. 1.
Der Auspuffzylinder wird zweckmäßig so aufgestellt, daß der vom Propeller abgeleitete Kühlstrom durch die Düse g achsial in den Zylinder c eintritt, der nach dem Austrittsende der Gase zu verjüngt ausgebildet ist. Die Auspuffrohre k der Explosionsmotoren münden im Winkel zur Mittelachse des Zylinders c in letzteren ein. Innerhalb des Zylinders c und außerhalb des von dem Kühl-The exhaust cylinder is expediently set up so that the cooling flow derived from the propeller enters axially through the nozzle g into the cylinder c , which is designed to be tapered after the outlet end of the gases. The exhaust pipes k of the explosion engines open into the latter at an angle to the central axis of the cylinder c. Inside the cylinder c and outside of the cooling
Claims (1)
Publications (1)
Publication Number | Publication Date |
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DE316082C true DE316082C (en) |
Family
ID=568810
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT316082D Active DE316082C (en) |
Country Status (1)
Country | Link |
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DE (1) | DE316082C (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE918674C (en) * | 1941-08-19 | 1954-09-30 | Versuchsanstalt Fuer Luftfahrt | Device for exhaust systems of aircraft engines |
US2841237A (en) * | 1953-12-14 | 1958-07-01 | Slayter Games | Muffler structure |
DE1052174B (en) * | 1951-07-03 | 1959-03-05 | Elie P Aghnides | Exhaust air ejector for internal combustion engines |
DE1052173B (en) * | 1953-03-24 | 1959-03-05 | Vladimir Jansa | Exhaust system for motorcycle engines |
-
0
- DE DENDAT316082D patent/DE316082C/de active Active
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE918674C (en) * | 1941-08-19 | 1954-09-30 | Versuchsanstalt Fuer Luftfahrt | Device for exhaust systems of aircraft engines |
DE1052174B (en) * | 1951-07-03 | 1959-03-05 | Elie P Aghnides | Exhaust air ejector for internal combustion engines |
DE1052173B (en) * | 1953-03-24 | 1959-03-05 | Vladimir Jansa | Exhaust system for motorcycle engines |
US2841237A (en) * | 1953-12-14 | 1958-07-01 | Slayter Games | Muffler structure |
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