DE3911809A1 - Exhaust manifold for naturally aspirated engine - incorporates convergent outlet pipe which forms thrust nozzle - Google Patents
Exhaust manifold for naturally aspirated engine - incorporates convergent outlet pipe which forms thrust nozzleInfo
- Publication number
- DE3911809A1 DE3911809A1 DE19893911809 DE3911809A DE3911809A1 DE 3911809 A1 DE3911809 A1 DE 3911809A1 DE 19893911809 DE19893911809 DE 19893911809 DE 3911809 A DE3911809 A DE 3911809A DE 3911809 A1 DE3911809 A1 DE 3911809A1
- Authority
- DE
- Germany
- Prior art keywords
- volume
- acoustic
- tube
- pipe
- upstream
- 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.)
- Withdrawn
Links
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
- F01N13/08—Other arrangements or adaptations of exhaust conduits
- F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
-
- 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
- F01N1/023—Helmholtz resonators
-
- 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
- F01N1/089—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using two or more expansion chambers in series
-
- 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
- F01N1/14—Silencing apparatus characterised by method of silencing by adding air to exhaust gases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B13/00—Engines characterised by the introduction of liquid fuel into cylinders by use of auxiliary fluid
-
- 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
- F01N2270/00—Mixing air with exhaust gases
-
- 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
- F01N2490/02—Two or more expansion chambers in series connected by means of tubes
- F01N2490/04—Two or more expansion chambers in series connected by means of tubes the gases flowing longitudinally from inlet to outlet only in one direction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B1/00—Engines characterised by fuel-air mixture compression
- F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
- F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Abstract
Description
Die Aufgabe dieser Patentanmeldung besteht darin, die technologische Ent wicklung der Abgasanlage für Kraftwagen zusammenfassend für ihre Elemente Schubdüse/Langrohr/finale Schalldämpfung in der Weise darzustellen, daß die Herstellung der Motorleistung integriert mit äußerster Armut des fi nalen Schadstoffauswurfes für den Abstimmungsingenieur herstellbar ist. Zur Herstellung des Endausbrandes im Motorbrennraum der verschiedenen Zy linder liegt ihr besonderer Schwerpunkt darin, unter Ausnutzung des beson deren Leistungsaufbaus der Anlage primär zugleich die richtige Dosierung des ansaugseitigen Kraftstoff/Luftgemenges vornehmen zu können, da mit ihr im Unterschiede zu nachträglichen Zusatzluft-Einbringungen die innige Kraftstoff/Luft-Mischung erreichbar ist, die bereits in den Motorbrenn räumen entstanden sein muß, um vollkommenen Endausbrand zu erzielen. Es sind bewährte Zusatzluft-Positionen für den Fall angegeben, daß derarti ge Anlagen auch im Gebrauchtfahrzeugmarkt angewendet werden, bei dem es in der Regel nicht möglich ist, auch die korrespondierende ansaugseitige Feinabstimmung vorzunehmen, die zur korrekten Gesamtdurchführung des be schriebenen Systems meßtechnisch erforderlich ist. Ausgearbeitete Zusatz luft-Einbringungsverfahren werden für den Spezialisten als Zusatzanmeldun gen nachgereicht werden.The task of this patent application is the technological ent Development of the exhaust system for motor vehicles in summary for their elements To represent thrust nozzle / long tube / final sound absorption in such a way that the production of the engine power integrated with extreme poverty of the fi nalen pollutant ejection for the voting engineer is producible. To produce the final burnout in the engine combustion chamber of the various Zy Her special focus is on taking advantage of the special the performance of the system is primarily the correct dosage the fuel / air mixture on the intake side, as with you, in contrast to subsequent additions of additional air, the intimate Air / fuel mixture is achievable already in the engine combustion clearing must have arisen in order to achieve complete burnout. It proven additional air positions are given in the event that suchi systems can also be used in the used vehicle market, where it is usually not possible, even the corresponding intake-side To fine-tune the correct overall implementation of the be written system is required for measurement. Elaborated addition Air introduction procedures are an additional registration for the specialists be submitted later.
Diese Anmeldung geht aus von der Hauptanmeldung P 39 05 405.5 (20. 2. 1989). Typenbezogene Anlagen, die meßtechnische Dokumentationen hinsichtlich ih res Wirkungsgrades besitzen, werden im Markt angeboten werden und sind auch mit ihren ansaugseitigen Maßnahmen durch den Fachservice handhabbar. Diese Hauptanmeldung hatte erstmalig das aus den Strahlantriebsentwicklungen be kannte Schubdüsenverfahren auch auf die von Mehrzylinder-Langrohranlagen ausgeworfene Abgassäule angewendet, um damit in der Ventilüberschneidungs zone der Kraftwagen-Viertaktmotoren die auf den ansaugseitigen Beladungs prozeß des Motors wirkende nachsaugende Wirkung der Abgassäule optimal ab zustimmen. Das Verfahren besteht im Prinzip darin, den bisher ohne Verbrauchs erhöhung nicht steigerbaren Luftbeladungsgrad der Kraftstoff/Luft-Mischung der Viertakt-Spülsysteme so zu erhöhen, das bisherige Verlustenergien der Spülsysteme vermieden werden und eine bessere Kraftstoff-Ausnützung gesi chert ist. This application is based on the main application P 39 05 405.5 (February 20, 1989). Type-related systems, the metrological documentation with regard to own efficiency, will be offered in the market and are also with their intake-side measures can be handled by the specialist service. These The main application had this for the first time from the jet drive developments Known thrust nozzle process also on that of multi-cylinder long pipe systems ejected exhaust column applied to keep it in the valve overlap zone of the motor four-stroke engines on the intake-side loading process of the engine optimally absorbing effect of the exhaust column agree. In principle, the process consists of the one that has so far been without consumption Increase in the air load ratio of the fuel / air mixture that cannot be increased of the four-stroke flushing systems to increase the previous energy losses Flushing systems are avoided and better fuel utilization is ensured chert is.
Diese Beschreibung folgt den schutzrechtlich wichtigen Gesichtspunkten. Sie definiert auch für Lizenznehmer des Faches mit ihren Schemazeich nungen, wie sie innerhalb schutzrechtlicher Darstellungen üblich sind und keine Maßangaben enthalten, die technologischen Zusammenhänge. DieThis description follows the important points of protection law. It also defines for licensees of the subject with their schematic drawing such as are common within protective law presentations and do not contain dimensions, the technological context. The
Fig. 1 und 2 zeigen schematisch das Schubdüsensystem, das darin be steht, den Auswurf der Mehrzylinder-Abgasleitungen (323/1 bis 323/4) ab rupt in eine sogenannte Lorindüse (= Schubdüse) zu zeigen, die darin besteht, die Auswürfe nicht einfach nur in einer oder mehreren Sammelrohr leitungen zu reinigen, sondern sie in einen ansteigenden Längsraum (K 1) einlaufen zu lassen, dessen Querschnitt entsprechend der anwachsenden Ab gasmenge zunimmt und bezogen hierauf die darin liegende Entwicklung der Auswurfenergien begünstigt. Diese Beibehaltung und Ausnützung der Aus wurfenergien mit ihren innewohnenden Drücken, Dichten und Temperaturen begünstigt jede ihr nachfolgende Frischladung des Motors, indem sie mit ihrer Qualität als "Abruptauswürfe" die geringstmöglichen Widerstän de für alle ihr folgenden Frischladungsprozesse herbeiführt. Fig. 1 and 2 show schematically the thrust nozzle system, which is to be the ejection of the multi-cylinder exhaust pipes ( 323/1 to 323/4 ) from rupture in a so-called Lorindüse (= thrust nozzle), which consists in not ejecting simply to clean pipes in one or more header pipes, but to let them run into an increasing longitudinal space (K 1 ), the cross-section of which increases in accordance with the increasing amount of exhaust gas and, based on this, favors the development of ejection energy therein. This maintenance and exploitation of the ejection energies with their inherent pressures, densities and temperatures favors every subsequent fresh charge of the engine, since with its quality as "abrupt ejections" it brings about the least possible resistance for all subsequent fresh charge processes.
Bei der Schemazeichnung Fig. 1 ist zu beachten, daß in ihr der Über gang aus der Senkrechten in die Horizontale des Unterflurbetriebs nicht eingezeichnet ist: die Bezeichnung VZ bedeutet "Verdrehungszone", d. h. einen Verstellbereich, mit dem der Übergang in den horizontal verlau fenden Unterflurbereich bzw. in sonstige Raumbedingungen erfolgt. Die marktfertig ausgearbeiteten Anlagen enthalten die dafür von Fall zu Fall erforderlichen Informationen. Die Schemazeichnungen 1 und 2 sichern mit ihren Konstruktionen, welche mit ihren gesteigerten Auswurfenergien den Beladungsprozeß des Motors im Unterschiede zu üblichen querschnittsglei chen Rohrleitungen positiv beeinflussen, interessante Motorleistungen. Die Schemazeichnungen der Fig. 3 und 4 zeigen die Konstruktion der finalen Schalldämpfungskonstruktionen, welche auf die Vorzüge des Schub düsensystems meßtechnisch abgestimmt sind. Die dies sehr ausführlich beschreibenden 12 Ansprüche erklären die auch für diese Konstruktionen maßgeblichen Gesichtspunkte, so daß die Sicherheit besteht, daß optima le Schalldämpfung die hervorragende und von Anwendungsfall zu Anwendungs fall abgestimmte besondere Motorleistung und die Schadstoffarmut nicht beeinträchtigt. . In the schematic of Figure 1 is to be noted that in it the transitional is not drawn from the vertical to the horizontal position of the underground operation: the designation VZ means "twisting zone", ie an adjustment that allows the transition to the horizontal duri fenden underfloor area or in other room conditions. The ready-made systems contain the information required for this on a case-by-case basis. Schematic drawings 1 and 2 ensure interesting engine performance with their designs, which, with their increased ejection energies, have a positive effect on the loading process of the engine, in contrast to conventional cross-sectional pipelines. The diagrams of Figs. 3 and 4 show the construction of the final sound damping constructions, which are matched to the advantages of the thrust nozzle system by measurement. The 12 claims, which describe this in great detail, explain the points of view which are also relevant for these constructions, so that there is certainty that optimal sound absorption does not impair the excellent engine power and the low level of pollutants, which is coordinated from case to case.
Claims (12)
daß die den einzelnen Abgasauswürfen vorlaufende Stoßwelle an den Innen wandungen dieser Leitungsstrecke noch vor Übertritt in das Langrohr (52) mindestens zwei Prallwand-Umleitungen an Schrägflächen (410, 411) erfährt.1. Working method of self-priming multi-cylinder piston engines, the individual piston section ejections according to claim 1 and 2 of the application P 39 05 405.5 pass exhaust pipes equipped without intermediate volume, the outlets ( Fig. 1 and 2) get into a manifold system, which in various designs as a thrust tube (Lorindüse ) is designed, characterized in that the thrust tube part of this summarizing line section (K 1 ) between its lorine nozzle-like extension and the same constriction ( 42 ) for heat build-up has such a sequence of curvatures in the center,
that the shockwaves leading to the individual exhaust gas ejections on the inner walls of this line section undergoes at least two baffle diversions on inclined surfaces ( 410, 411 ) before they pass into the long tube ( 52 ).
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19893911809 DE3911809A1 (en) | 1989-02-22 | 1989-04-11 | Exhaust manifold for naturally aspirated engine - incorporates convergent outlet pipe which forms thrust nozzle |
DE3916429A DE3916429A1 (en) | 1989-04-11 | 1989-05-20 | IC engine exhaust system - incorporates Helmholtz resonator to generate pressure wave to increase power |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19893905405 DE3905405A1 (en) | 1988-03-18 | 1989-02-22 | Development of the operating method of internal combustion engines which are designed as naturally aspirated piston engines (reciprocating or rotary piston) |
DE19893911809 DE3911809A1 (en) | 1989-02-22 | 1989-04-11 | Exhaust manifold for naturally aspirated engine - incorporates convergent outlet pipe which forms thrust nozzle |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3911809A1 true DE3911809A1 (en) | 1990-10-18 |
Family
ID=25878053
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19893911809 Withdrawn DE3911809A1 (en) | 1989-02-22 | 1989-04-11 | Exhaust manifold for naturally aspirated engine - incorporates convergent outlet pipe which forms thrust nozzle |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3911809A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2371334A (en) * | 2001-01-17 | 2002-07-24 | Sankei Giken Kogyo Kk | Engine exhaust system with U-shaped section of larger internal diameter than other sections of the pipe |
GB2409238A (en) * | 2001-01-17 | 2005-06-22 | Sankei Giken Kogyo Kk | Engine exhaust system with a u-shaped section disposed in a muffler |
-
1989
- 1989-04-11 DE DE19893911809 patent/DE3911809A1/en not_active Withdrawn
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2371334A (en) * | 2001-01-17 | 2002-07-24 | Sankei Giken Kogyo Kk | Engine exhaust system with U-shaped section of larger internal diameter than other sections of the pipe |
GB2409238A (en) * | 2001-01-17 | 2005-06-22 | Sankei Giken Kogyo Kk | Engine exhaust system with a u-shaped section disposed in a muffler |
GB2409238B (en) * | 2001-01-17 | 2005-07-27 | Sankei Giken Kogyo Kk | Engine exhaust system |
GB2371334B (en) * | 2001-01-17 | 2005-08-10 | Sankei Giken Kogyo Kk | Engine exhaust system |
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Legal Events
Date | Code | Title | Description |
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AF | Is addition to no. |
Ref country code: DE Ref document number: 3905405 Format of ref document f/p: P |
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AG | Has addition no. |
Ref country code: DE Ref document number: 3916429 Format of ref document f/p: P |
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8131 | Rejection | ||
8170 | Reinstatement of the former position | ||
8141 | Disposal/no request for examination |