EP1177368B1 - Sammelrohr-anordnung für auspuffanlagen - Google Patents
Sammelrohr-anordnung für auspuffanlagen Download PDFInfo
- Publication number
- EP1177368B1 EP1177368B1 EP00929007A EP00929007A EP1177368B1 EP 1177368 B1 EP1177368 B1 EP 1177368B1 EP 00929007 A EP00929007 A EP 00929007A EP 00929007 A EP00929007 A EP 00929007A EP 1177368 B1 EP1177368 B1 EP 1177368B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- parallel
- pipes
- arrangement according
- wave
- exhaust
- 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 - Lifetime
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Classifications
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- 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
- F01N13/04—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 having two or more silencers in parallel, e.g. having interconnections for multi-cylinder engines
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- 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
- F01N1/06—Silencing apparatus characterised by method of silencing by using interference effect
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- 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
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
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- 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
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2882—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices
- F01N3/2885—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices with exhaust silencers in a single housing
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- 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
- F01N2330/00—Structure of catalyst support or particle filter
- F01N2330/02—Metallic plates or honeycombs, e.g. superposed or rolled-up corrugated or otherwise deformed sheet metal
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- 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
- F01N2330/00—Structure of catalyst support or particle filter
- F01N2330/06—Ceramic, e.g. monoliths
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- 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
- F01N2330/00—Structure of catalyst support or particle filter
- F01N2330/12—Metallic wire mesh fabric or knitting
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- 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
- F01N2330/00—Structure of catalyst support or particle filter
- F01N2330/14—Sintered material
Definitions
- the invention relates to a collector pipe arrangement for exhaust systems from Internal combustion engines, in particular multi-cylinder motorcycle engines, for switching on between the exhaust gas exhaust lines from the or each cylinder and at least one Silencer, with the exhaust gas outlet lines of the cylinders gradually at most finally a connecting pipe are summarized, behind this connecting pipe a tap is provided which divides the exhaust gas flow into at least two, flow-parallel pipes with a larger cross-sectional area than that divides the connecting pipe, and a merge behind these pipes again a single header is provided, the header having a free flow cross section which has at least the total area of the parallel pipelines corresponds and has a wave resistance function in this header
- EP 421 724 there is an arrangement with distribution of the exhaust gas flow at least two pipelines with subsequent reunification are disclosed.
- This The arrangement acts by damping standing waves by means of interference different lengths of parallel pipes.
- pressure reactions in upstream areas of the exhaust line for example through any characteristic impedance can be avoided.
- the cross-sectional area of the parallel pipelines is at least equal to or larger is than the input cross-sectional area and is also at least equal to or greater than downstream sections.
- the object of the invention is therefore a collector pipe arrangement as mentioned at the beginning described which consistently over the entire speed range of a Multi-cylinder engine an increase in performance with the greatest possible disadvantage Offers resonance phenomena with sufficient sound absorption, which at the same time with a smallest possible size can be realized, in particular the use in To make motorcycles possible or to make space for others in automobile construction Do not unduly reduce components.
- a component is used as a wave resistance, which component is the exhaust gas volume flow lets pass freely, while pressure waves become one if possible total reflection on this component will be forced, and that the total cross-sectional area of the parallel pipes is at least 25% larger than the free one Flow cross section of the connecting pipe.
- the distribution of the exhaust gas routing of the individual The connecting pipe on at least two parallel pipes leads to the division an undivided pressure wave in front of the tap onto several waves, the total energy of which corresponds to the original wave and the downstream, parallel channels run through as individual and independent wave fronts.
- wave resistance Another advantage of the component "wave resistance” is in that, on the one hand, the portion of wave energy that escapes total reflection and it happens to dissolve into a diffuse wave pattern, thereby stimulating unwanted Resonance vibrations in a downstream silencer is avoided. To the another, it reflects vacuum waves resulting from the mutual reflections in the proposed arrangement result and after the collector pipe in the direction Silencers would run as a similar vacuum wave towards the engine, creating a additional portion of the original pressure wave energy to support the Charge change is made usable.
- the further feature of the invention provided that the total cross-sectional area of the parallel pipes at least 25% larger than the free flow cross section of the connecting pipe.
- the total cross-sectional area of the parallel pipes is at least 40% up to 60% larger than the free flow cross section of the connecting pipe.
- the length of the parallel pipelines between tap and Merge should advantageously be at least twice that of each Diameter of these pipes correspond to ensure that they are in parallel Channels can each form separate and independent wave fronts and the original wave is not only spread briefly.
- An advantage of the proposed Arrangement is that the total length of the parallel pipe pieces for the Function is of no importance because of the induced multiple wave reflection between the components of the invention the transit times of the individual reflection waves be decoupled from the ignition frequency of the engine within the arrangement.
- the parallel pipes as side by side extending pipe sections are formed with substantially parallel axes.
- the wave resistance is as with holes or Slotted sheet made.
- the Wave resistance is designed as a perforated plate cylinder oriented essentially axially parallel, whose end facing the parallel pipes is closed, while the other End to the downstream parts of the exhaust system, especially the silencer is open.
- the wave resistance can be increased for a given hole diameter, if the holes or slots have a non-negligible longitudinal dimension or are axially extended by short pipe sections or protuberances of the sheet. With that is easily producible hole sizes, the desired wave resistance can be produced easily.
- the wave resistance can also include a catalyst body be honeycomb-shaped shafts, for example, which means that the dimensions are very small prescribed limits for noise and exhaust emissions with optimal and uniform Performance increase can be easily maintained even with motorcycles.
- the wave resistance is one porous metal or ceramic body, preferably made of sintered material.
- the could also Wave resistance is an easy to manufacture scrim, knitted fabric or knitted fabric made of metal threads his.
- Total cross section of the passage openings in the component of the wave resistance is greater than the total cross section of the parallel pipes, the flow resistance is not or only insignificantly larger than that of the upstream exhaust system, which makes an unfavorable Influencing the engine power is avoided. It is advantageously provided that the Total cross section of the passage openings is about 30% to 40% larger than that Total cross section of the pipes.
- the Wave resistance component acts as a volume resonator and builds up natural vibrations, which adversely affect the upstream system, is advantageously the Wave resistance arranged immediately behind the merge, the distance being too whose end is a maximum of about twice the pipe diameter there.
- FIG. 1 shows a first embodiment of the Invention for four-cylinder engines
- Fig. 2 is another variant for four-cylinder engines
- the Fig. 3 and its cross section A-A represent a special embodiment for the parallel Pipes
- Fig. 4 shows another embodiment of an inventive Exhaust system with two branches, two parallel pipe arrangements and two Impedances.
- the primary outlet pipes 1, which are designed as usual, are to 4 of the individual cylinders of a four-cylinder engine in pairs, as is also already known and usual, summarized in two secondary exhaust pipes 5 and 6.
- a Corresponding arrangement is also common in six-cylinder engines, where groups then of three primary outlet pipes combined into a secondary pipe are.
- the secondary exhaust pipes 5, 6 may optionally be other than have a circular cross-section, for example if they are structurally divided by a division single pipe are executed in two separate pipe halves.
- Each of a group of primary exhaust pipes associated with secondary exhaust pipes 5, 6 are known in this Arrangement merged into a single manifold 7, which the exhaust gas flows all cylinders combined and to which usually devices such as silencers or Catalysts 14 are connected, which can also be combined in a single component can.
- Corresponding arrangements are also common for eight- or twelve-cylinder engines each of which a cylinder bank is equipped with such an exhaust pipe elbow.
- the Merging of the primary immediately after the individual cylinders Exhaust pipes in a jointly extending exhaust pipe is also in two- or three-cylinder engines with the difference that according to the smaller number of cylinders the primary outlet pipes open directly into the individual manifold 7, the one Muffler or catalyst 14 leads.
- this collecting tube 12 with wave impedance 13 is the device 14, for example the silencer or the catalytic converter.
- section A-A of FIG. 1 shows the wave resistance 13 is advantageously arranged concentrically in the collecting tube 12.
- the particular effectiveness of the proposed arrangement is based on the following physical causes: the nature of the propagation of shock waves caused by the opening of a Engine exhaust, and the fundamental difference between partial and total reflection of these waves.
- the rhythm of the work cycles of a piston engine induced shock waves propagate as local sound speed in the exhaust gas Transmission medium inside the exhaust pipe towards the exhaust outlet.
- This Waves are individual events that strictly correlate with the opening of an engine outlet are.
- Their nature corresponds to that of a shock wave on the occasion of an explosion or one Sonic bang, because they too are the result of a sudden entry of Pressure energy in the transmission medium, which is there as a singular pulse with a single prominent amplitude propagates.
- shock waves must not be erroneously with standing waves be confused that establish themselves inside an exhaust system. Because the singular Wave fronts of shock waves can mess up without changing their momentum run through, comparable to two different waves on the surface of a lake, while two different standing waves inside the exhaust pipes, depending of their phase difference, either superimposed in the mode of resonance or interference. Such standing waves inside the exhaust system get their excitation from said Shock waves, however, are different from these as their cause and their effect.
- EP 0 421 724 A1 describes a pipe arrangement for standing damping Interference waves.
- their fundamental frequency naturally corresponds to the ignition frequency of the engine, therefore lies between 100 and 400 Hertz, but pipe lengths are required, especially those available on a motorcycle Clearly exceed space.
- the length difference is the parallel tubes 9 and 10 of the proposed arrangement for their function completely irrelevant. This is also proven by corresponding test series on the test bench.
- a merger 11 as a means of producing Area jumps within the free flow cross-section in the exhaust pipe of the Exhaust systems.
- the dimensioning rules listed below define the lower limit of the Geometric proportions in an exhaust gas duct according to the invention, which are responsible for the efficiency of the partial wave reflection are essential. So with the minimum length of the parallel tubes 9th and 10, which are preferably at least twice their respective diameters Pipes should correspond, ensuring that an undivided shock wave pulse in front of the tap 8 is divided into two impulses, the total energy of which is ideal, i.e. without Taking into account inevitable wall losses that correspond to the original impulse. On The junction 11 experiences each of the partial waves that are in the tubes 9 and 10 direction Spread the exhaust end, a partial reflection at the surface jump, the free one Flow cross section of this component in relation to the individual surface of the tubes 9 and 10 represents.
- the partial wave reflection of one and the same shock wave at the junction 11 as also at tap 8 binds a large portion - ideally half - of the pulse energy the original shock wave within the arrangement in which it becomes a mutual frequent reflection between the ends of the tubes 9 and 10 is forced. Carnot's Shock loss that inevitably occurs with each of these partial wave reflections, causes a conversion of the pulse energy into heat and thus a processing of the original shock wave.
- the proposed circuit of a Medium immediately after the union of the parallel pipelines, whose Passages let the exhaust gas volume flow pass unhindered, but are so small that they force impact waves to a total reflection, such as a finely perforated sheet or a catalyst body, causes a compared to the arrangement from EP 0 421 724 A1 exponential multiplication of the amount of pulse energy that is mutually partial Reflection between the ends of the parallel tubes 9 and 10 is bound in the arrangement: Because the switching of such a medium immediately after the union of the parallel Pipelines cause total reflection of all shock waves that occur, including partial waves, which result from the undivided shock wave before the arrangement in the manifold 7, i.e.
- the shock waves generated in the ignition frequency of the engine are advantageous, because they experience (partial) wave reflection that optimizes engine efficiency.
- the reason for that lies not only in the already mentioned processing of the pulse energy of the shock waves, whereby also suggestion for any residual standing waves is reduced, but in essential in that with the exponential splitting and division of the original wave into a multitude of sub-waves, just as a multiplication of the natural frequency of one standing wave that is stimulated by these sub-waves. To this This ensures that the fundamental frequency of vibrations from said arrangement is significantly above the ignition frequency of the engine to which the exhaust system is connected, which prevents unwanted overlays and resonances.
- Fig. 2 shows an arrangement according to the invention, in which the connecting tube 7 on the Branch 8 two exhaust silencers 14 and 14 'are coupled by the branch 8 Exhaust gas flow on two pairs of parallel pipe sections 9 and 10 or 9 'and 10' with each subordinate devices 11 to 13 or 11 'to 13'.
- FIG. 3 A constructive alternative to two separate, parallel pipes in the arrangement according to the invention is shown in Fig. 3 and its cross section A-A.
- This pipe is divided into two channels by a partition plate 15 divided, which must pass through the exhaust gas.
- the wave resistance 13 is at the end of this Channels, advantageously as described above, placed axially in the collecting pipe 12 to which the muffler or catalytic converter 14 is connected again in the usual way.
- the function of the tap 8 the Exhaust gas from the connecting pipe 7 divided into the channels defined by the partition plate 15, preferably exerted by a conical extension piece that has the cross section of that of the connecting tube 7 expanded to the cross section of the header tube 12.
- Fig. 4 shows a particularly favorable embodiment of an inventive Arrangement
- the two secondary exhaust pipes 5 and 6, each of the exhaust gas Forward cylinders or a cylinder group of an engine together and between them a connection 15 can optionally be provided, in each case a characteristic impedance 13 or 13 ' is assigned with a downstream silencer 14 or 14 '.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exhaust Silencers (AREA)
- Exhaust Gas After Treatment (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Description
Claims (17)
- Sammlerrohr-Anordnung für Auspuffanlagen von Brennkraftmaschinen, insbesondere Mehrzylinder-Motorradmotoren, zur Einschaltung zwischen die Abgas-Auslassleitungen (1 bis 6) aus dem oder jedem Zylinder und zumindest einen Schalldämpfer (14), wobei die Abgas-Auslassleitungen (1 bis 6) der Zylinder allenfalls stufenweise in schließlich ein Verbindungsrohr (7) zusammengefaßt sind, wobei hinter diesem Verbindungsrohr (7) ein Abzweiger (8) vorgesehen ist, der den Abgasstrom auf zumindest zwei voneinander getrennte, strömungsmäßig parallele Rohrleitungen (9, 10; 9', 10') mit insgesamt größerer Querschnittsfläche als jener des Verbindungsrohres (7) aufteilt, und hinter diesen Rohrleitungen (9, 10; 9', 10') eine Zusammenführung (11, 11') auf wiederum ein einziges Sammelrohr (12, 12') vorgesehen ist, wobei das Sammelrohr (12, 12') einen freien Strömungsquerschnitt aufweist, der zumindest der Flächensumme der parallelen Rohrleitungen (9, 10; 9', 10') entspricht, und eine Wellenwiderstandsfunktion ausübt, dadurch gekennzeichnet, daß im weiterführenden Sammelrohr (12, 12') ein Wellenwiderstands-Bauteil (13, 13') eingesetzt ist, welcher Bauteil (13, 13') den Abgas-Volumenstrom ungehindert passieren läßt, während Druckwellen zu einer möglichst vollständigen Totalreflexion an dieser Komponente gezwungen werden, und daß die Summen-Querschnittsfläche der parallelen Rohrleitungen (9, 10; 9', 10') mindestens 25% größer ist als der freie Strömungsquerschnitt des Verbindungsrohres (7)
- Anordnung nach Anspruch 1, dadurch gekennzeichnet, daß die Summen-Querschnittsfläche der parallelen Rohrleitungen (9, 10; 9', 10') mindestens 40% bis 60% größer ist als der freie Strömungsquerschnitt des Verbindungsrohres (7).
- Anordnung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Länge der parallel geführten Rohrleitungen (9, 10; 9', 10') wenigstens dem Doppelten des jeweiligen Durchmessers dieser Rohre entspricht.
- Anordnung nach Anspruch 3, dadurch gekennzeichnet, daß das Verbindungsrohr (7) als Verbindungsglied zwischen den vorgeordneten Auslaßleitungen (1 bis 6) und der erfindungsgemäßen Anordnung mit einer Rohrlänge ausgeführt ist, die wenigstens dem Durchmesser des besagten Rohres (7) entspricht.
- Anordnung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die parallelen Rohrleitungen (9, 10; 9', 10') als nebeneinander verlaufende Rohrstücke mit im wesentlichen parallelen Achsen ausgebildet sind.
- Anordnung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß mehr als zwei, vorzugsweise drei parallele Rohrleitungen vorgesehen sind.
- Anordnung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Wellenwiderstand (13, 13') als mit Löchern oder Schlitzen versehenes Blech ausgeführt ist.
- Anordnung nach Anspruch 7, dadurch gekennzeichnet, daß der Wellenwiderstand (13, 13') als im wesentlichen achsparallel orientierter Lochblechzylinder ausgeführt ist, dessen den parallelen Rohrleitungen (9, 10; 9', 10') zugewandtes Ende verschlossen ist, während das andere Ende zu den nachgeschalteten Teilen (14) der Auspuffanlage, insbesondere dem Schalldämpfer, hin offen ist.
- Anordnung nach Anspruch 7, dadurch gekennzeichnet, daß die Löcher oder Schlitze eine nicht vernachlässigbare Längsdimension aufweisen oder durch kurze Rohrstücke bzw. Ausstülpungen des Bleches axial verlängert sind.
- Anordnung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der Wellenwiderstand (13, 13') ein Katalysatorkörper mit beispielsweise wabenförmigen Schächten ist.
- Anordnung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der Wellenwiderstand (13, 13') ein poröser Metall- oder Keramikkörper, vorzugsweise aus Sintermaterial, ist.
- Anordnung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der Wellenwiderstand (13, 13') ein Gelege, Gewirke oder Gestrick aus Metallfäden ist.
- Anordnung nach einem der Ansprüche 7 bis 12, dadurch gekennzeichnet, daß der Gesamtquerschnitt der Durchtritts-Öffnungen im Wellenwiderstand (13, 13') größer ist als der Gesamtquerschnitt der parallelen Rohrleitungen (9, 10; 9', 10').
- Anordnung nach Anspruch 13, dadurch gekennzeichnet, daß der Gesamtquerschnitt der Durchtritts-Öffnungen ca. 30% bis 40% größer ist als der Gesamtquerschnitt der Rohrleitungen (9, 10; 9', 10').
- Anordnung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Wellenwiderstand (13, 13') unmittelbar hinter der Zusammenführung (11, 11') angeordnet ist, wobei der Abstand zu deren Ende maximal etwa das Doppelte des dortigen Rohrdurchmessers ist.
- Anordnung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass zumindest zwei Abzweiger (8, 8') und zumindest zwei Zusammenführungen (11, 11') parallel zueinander vorgesehen sind, wobei die Rohrleitungen (9, 10 bzw. 9', 10') jedes Abzweigers (8, 8') zu verschiedenen Zusammenführungen (11, 11') verlaufen.
- Anordnung nach Anspruch 16, dadurch gekennzeichnet, dass vor dem oder jedem Abzweiger (8, 8') zumindest eine Verbindung (15) zwischen den parallelen Rohrleitungen (5, 6) vorgesehen ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT78999 | 1999-05-03 | ||
AT78999 | 1999-05-03 | ||
PCT/AT2000/000115 WO2000066884A1 (de) | 1999-05-03 | 2000-05-03 | Sammelrohr-anordnung für auspuffanlagen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1177368A1 EP1177368A1 (de) | 2002-02-06 |
EP1177368B1 true EP1177368B1 (de) | 2004-04-21 |
Family
ID=3499795
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00929007A Expired - Lifetime EP1177368B1 (de) | 1999-05-03 | 2000-05-03 | Sammelrohr-anordnung für auspuffanlagen |
Country Status (7)
Country | Link |
---|---|
US (1) | US20020083703A1 (de) |
EP (1) | EP1177368B1 (de) |
JP (1) | JP2002543336A (de) |
AT (1) | ATE264990T1 (de) |
AU (1) | AU4723200A (de) |
DE (1) | DE50006155D1 (de) |
WO (1) | WO2000066884A1 (de) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT4965U3 (de) * | 2001-04-30 | 2002-06-25 | Sinus Fahrzeugkomponenten Enwi | Sammelrohr-anordnung für auspuffanlagen von brennkraftmaschinen |
DE602004002857T2 (de) * | 2004-07-02 | 2007-05-16 | Ford Global Technologies, LLC, Dearborn | Schalldämpfervorrichtung |
JP4455962B2 (ja) * | 2004-09-13 | 2010-04-21 | 川崎重工業株式会社 | 自動二輪車の排気装置 |
JP2007032541A (ja) * | 2005-07-29 | 2007-02-08 | Toyota Motor Corp | 内燃機関の排気浄化システム |
US20110039461A1 (en) * | 2005-12-12 | 2011-02-17 | Brunswick Corporation | Exhaust plenum for distributing exhaust gas uniformly through a catalyst module |
JP2007162653A (ja) * | 2005-12-16 | 2007-06-28 | Kawasaki Heavy Ind Ltd | 乗物用排気装置及び該乗物用排気装置を備えた自動二輪車 |
US8066950B2 (en) * | 2005-12-19 | 2011-11-29 | Miratech Holdings, Llc | Catalytic converter system and element for diesel engines |
JP4463210B2 (ja) * | 2006-01-13 | 2010-05-19 | 本田技研工業株式会社 | 集合型排気ポートが形成されたシリンダヘッドを備える多気筒内燃機関 |
US8113893B2 (en) * | 2008-07-22 | 2012-02-14 | Yamaha Hatsudoki Kabushiki Kaisha | Exhaust device for outboard motor multi-cylinder engine |
US8359847B2 (en) * | 2009-10-01 | 2013-01-29 | Albert Earl Hatchett | Device and method for converting a motorcycle exhaust system into a multiple exhaust system |
CN105626220A (zh) * | 2016-01-30 | 2016-06-01 | 太仓丹妮尔模塑汽配有限公司 | 一种具有超强消音功能的汽车排气管 |
JP6548693B2 (ja) * | 2017-05-19 | 2019-07-24 | 本田技研工業株式会社 | 内燃機関の排気装置 |
CN115875107A (zh) * | 2023-03-03 | 2023-03-31 | 临沂临工重托机械有限公司 | 一种发动机的排气净化装置 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53110617U (de) | 1977-02-09 | 1978-09-04 | ||
US4953352A (en) * | 1985-08-26 | 1990-09-04 | Campbell Monty A | Exhaust system |
IT206464Z2 (it) | 1986-02-27 | 1987-08-10 | Alfa Romeo Spa | Impianto di scarico per un motore a c.i.. |
DE3712495A1 (de) | 1986-04-15 | 1987-10-22 | Sebring Auspuff | Schalldaempfer fuer die abgase von brennkraftmaschinen |
DE3740238A1 (de) * | 1986-12-04 | 1988-06-23 | Audi Ag | Abgasanlage fuer eine brennkraftmaschine mit zwei zylinderbaenken |
DE3828599A1 (de) * | 1988-08-23 | 1990-03-08 | Bayerische Motoren Werke Ag | Abgasanlage einer mehrzylindrigen brennkraftmaschine |
US5033581A (en) | 1989-10-02 | 1991-07-23 | Feuling Engineering, Inc. | Muffler for an internal combustion engine |
AT3287U3 (de) * | 1999-05-03 | 2000-03-27 | Skorianz Christian | Sammelrohr-anordnung für auspuffanlagen |
-
2000
- 2000-05-03 EP EP00929007A patent/EP1177368B1/de not_active Expired - Lifetime
- 2000-05-03 AU AU47232/00A patent/AU4723200A/en not_active Abandoned
- 2000-05-03 JP JP2000615490A patent/JP2002543336A/ja not_active Withdrawn
- 2000-05-03 AT AT00929007T patent/ATE264990T1/de not_active IP Right Cessation
- 2000-05-03 DE DE50006155T patent/DE50006155D1/de not_active Expired - Fee Related
- 2000-05-03 WO PCT/AT2000/000115 patent/WO2000066884A1/de active IP Right Grant
-
2001
- 2001-11-02 US US10/001,188 patent/US20020083703A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
WO2000066884A1 (de) | 2000-11-09 |
US20020083703A1 (en) | 2002-07-04 |
JP2002543336A (ja) | 2002-12-17 |
ATE264990T1 (de) | 2004-05-15 |
DE50006155D1 (de) | 2004-05-27 |
EP1177368A1 (de) | 2002-02-06 |
AU4723200A (en) | 2000-11-17 |
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