EP0990093B1 - Induction system, especially for use as an induction port of an internal combustion engine - Google Patents

Induction system, especially for use as an induction port of an internal combustion engine Download PDF

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Publication number
EP0990093B1
EP0990093B1 EP98939521A EP98939521A EP0990093B1 EP 0990093 B1 EP0990093 B1 EP 0990093B1 EP 98939521 A EP98939521 A EP 98939521A EP 98939521 A EP98939521 A EP 98939521A EP 0990093 B1 EP0990093 B1 EP 0990093B1
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EP
European Patent Office
Prior art keywords
internal structure
intake system
intake
resonator
combustion engine
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EP98939521A
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German (de)
French (fr)
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EP0990093A1 (en
Inventor
Helmut Spannbauer
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Mann and Hummel GmbH
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Mann and Hummel GmbH
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/12Intake silencers ; Sound modulation, transmission or amplification
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10Air intakes; Induction systems
    • F02M35/10006Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
    • F02M35/10026Plenum chambers
    • F02M35/10039Intake ducts situated partly within or on the plenum chamber housing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10Air intakes; Induction systems
    • F02M35/10006Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
    • F02M35/10026Plenum chambers
    • F02M35/10052Plenum chambers special shapes or arrangements of plenum chambers; Constructional details
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/12Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1205Flow throttling or guiding
    • F02M35/1216Flow throttling or guiding by using a plurality of holes, slits, protrusions, perforations, ribs or the like; Surface structures; Turbulence generators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/12Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1255Intake silencers ; Sound modulation, transmission or amplification using resonance
    • F02M35/1266Intake silencers ; Sound modulation, transmission or amplification using resonance comprising multiple chambers or compartments
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10Air intakes; Induction systems
    • F02M35/10314Materials for intake systems
    • F02M35/10321Plastics; Composites; Rubbers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10Air intakes; Induction systems
    • F02M35/1034Manufacturing and assembling intake systems
    • F02M35/10354Joining multiple sections together
    • F02M35/1036Joining multiple sections together by welding, bonding or the like

Definitions

  • the invention relates to an intake system, in particular for use as an intake passage of an internal combustion engine, according to the preamble of claim 1 (see US-A-444 9607 or US-A-3712416).
  • Intake systems for internal combustion engines are provided in particular in the region of the intake manifold with shunt resonators in order to achieve a damping of the intake noise.
  • these shunt resonators consist of a resonator chamber and a resonator neck which connects the resonator chamber to the suction tube.
  • This basic form of shunt resonator can be varied depending on the particular application. There are several necks conceivable that allow for different lengths attenuation of intake noise of different frequencies.
  • the resonator space can have almost any shape.
  • the resonator space described above must be considered structurally already in the design of the intake manifold.
  • the disadvantage here is that the resonator described can not be used subsequently to improve the acoustics of a suction tube, if the results are unsatisfactory with respect to the intake noise of the intake manifold. In such a situation, there is often no additional space for a shunt resonator even in the engine compartment since the development of the vehicle in question is almost completed. This can be necessary expensive new construction in Saugrohr Anlagen.
  • the object of the invention is to provide a Helmholzresonator claimed a small space for themselves and can also be added later in an existing Saugrohrkonstrutation. In this case, either special frequencies of the intake noise to be damped or broadband attenuation can be achieved.
  • an inner structure is inserted into the interior of the suction tube and fastened there.
  • This internal structure together with the walls of the suction pipe, forms a resonator space which must have at least one opening to the intake manifold volume.
  • Such an internal structure requires no additional space in the engine compartment.
  • a further advantage is the possibility of retrofitting. This is especially easy to implement with suction tubes, which are manufactured in multi-shell technology.
  • such an internal structure can be introduced through the inlet or outlet openings of the suction tube.
  • the shape of the suction tube does not have to be changed at all or only insignificantly.
  • the internal structure z. B. glued, it must be adapted only to a certain contour region of the suction tube.
  • the inner structure may be designed such that it generates a plurality of resonator chambers of different volume after mounting in the intake manifold. By this measure, different frequencies in the intake can be mainly attenuated.
  • a useful variant of the invention provides for the assembly of the inner structure in the interior of the suction tube. This is arranged in front of the intake ducts to the cylinders. Therefore, the noise damping acts on all intake ports of the intake manifold.
  • An alternative variant of the internal structure provides for their design as an insert. This can be carried out in one piece with a positive effect on the economy in mass production.
  • the inner structure may have regions of different wall thickness. If one sees several openings in an inner structure, this results in different neck lengths for the shunt resonator.
  • the positive effect of this measure is a broadband attenuation of the intake noise.
  • the inner structure can also be welded into the intake manifold. This is especially true for plastic suction, but is also conceivable for metallic suction pipes.
  • a plastic entry part can in particular be joined by the ultrasonic welding process. However, there are other welding methods, eg. As the friction welding, possible.
  • a suction pipe 10 is shown in section through one of the intake ports 11.
  • the combustion air is supplied to a plenum 12 through an inlet, not shown.
  • the collecting space distributes the combustion air to the intake ducts 11, which are connected by outlets 13 with not shown cylinder-side air inlets. Through this, the combustion air is supplied to the engine: dead spaces 14 formed in the intake manifold can be used for damping the intake noise.
  • the suction tube consists of several shells 15. Before the shells are welded together, internal structures 16 can be brought into contact with inner walls 17 of the suction tube.
  • the internal structures have bores 18, which serve as necks for the resonator spaces formed by the internal structures.
  • the inner structures can preferably be mounted in the collecting space 12 of the suction tube.
  • the inner structures 16 may consist of a perforated plate 19 and spacers 20 which are mounted between the inner wall 17 and plate 19, consist.
  • the inner structure may consist of a single insert part 21, which is preferably welded to the inner wall 17.
  • welding shoulders 22 must be provided on the inner wall. The welding of the shells 15 takes place after introduction of the inner structures 16.
  • the collection space 12 is shown in longitudinal section. It represents the connection of an inlet 24 for the combustion air and the Saugkanalmünditch 25.
  • the inner structure 16 is shown in plan view. In this illustration, the comparatively large surface area in relation to the height of the inner structure (see FIG. 1) becomes clear. This geometry is necessary because the cross-section of the collecting space must not be excessively narrowed. In this way, a sufficient air supply of the intake ducts is given.
  • FIG. 3 shows a section through the wall section of an inner structure 16.
  • the wall thickness of the component increases linearly in this case.
  • the holes 18, which are introduced at regular intervals in the wall and serve as necks for the shunt resonator, have a different length. As a result, the shunt resonator exhibits a broadband effect.
  • FIG. 4 schematically shows an inner structure 16 with a plurality of resonator cavities 23. These cavities are formed by a dividing wall 26 which rests on the inner wall 17 of the Suction tube supported.
  • the inner structure can be glued via a circumferential lip 27 with the suction tube wall.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Characterised By The Charging Evacuation (AREA)
  • Exhaust Silencers (AREA)

Abstract

The invention relates to an induction port with an optimal noise level, especially a suction pipe for use as an induction port of an internal combustion engine. The noise level is optimised by introducing shunt resonators (16, 18) in the collecting chamber (12) of the suction pipe. Said suction pipe is produced using a multi-shell technique. The inserted structures (16, 18) can be stuck or welded before the shells are joined. The inventive shunt resonators (16, 18) require little space and can also be used for subsequently optimising the suction pipes in the test phase, should the test results be acoustically unsatisfactory.

Description

Die Erfindung betrifft ein Ansaugsystem, insbesondere zur Verwendung als Ansaugkanal einer Brennkraftmaschine, nach der Gattung des Patentanspruches 1 (siehe US-A-444 9607 oder US-A-3712416).The invention relates to an intake system, in particular for use as an intake passage of an internal combustion engine, according to the preamble of claim 1 (see US-A-444 9607 or US-A-3712416).

Ansaugsysteme für Brennkraftmaschinen werden insbesondere im Bereich des Saugrohres mit Nebenschlußresonatoren versehen, um eine Dämpfung des Ansauggeräusches zu erreichen. Im einfachsten Fall bestehen diese Nebenschlußresonatoren aus eine Resonatorraum und einem Resonatorhals der den Resonatorraum mit dem Saugrohr verbindet. Diese Grundform des Nebenschlußresonators kann in Abhängigkeit vom jeweiligen Anwendungsfall variiert werden. Es sind mehrere Hälse denkbar die bei unterschiedlicher Länge eine Dämpfung von Ansauggeräuschen unterschiedlicher Frequenzen ermöglichen. Der Resonatorraum kann nahezu beliebige Formen besitzen.Intake systems for internal combustion engines are provided in particular in the region of the intake manifold with shunt resonators in order to achieve a damping of the intake noise. In the simplest case, these shunt resonators consist of a resonator chamber and a resonator neck which connects the resonator chamber to the suction tube. This basic form of shunt resonator can be varied depending on the particular application. There are several necks conceivable that allow for different lengths attenuation of intake noise of different frequencies. The resonator space can have almost any shape.

Nachteilig an der Verwendung von Nebenschlußresonatoren ist deren Platzbedarf im Bereich des Saugrohres. Dieser muß im Motorraum vorgesehen werden, was durch die engen Platzverhältnisse im Motorraum erschwert wird. Ein Ansatz zur Lösung des Problems ist der z. B. DE 3842248 A1 zu entnehmen. Es wird ein Resonator vorgeschlagen, der in das Gehäuse des Ansaugsystems integriert ist. Dadurch wird die Nutzung des in dem Gehäuse anfallenden Totvolumens als Resonatorraum möglich. Es muß daher kein zusätzlicher Einbauraum im Motorraum zur Verfügung gestellt werden.A disadvantage of the use of shunt resonators whose space requirement in the region of the suction pipe. This must be provided in the engine compartment, which is complicated by the tight space in the engine compartment. One approach to solving the problem is the z. For example, see DE 3842248 A1. It is proposed a resonator, which is integrated in the housing of the intake system. This makes it possible to use the dead volume accumulating in the housing as a resonator chamber. There must therefore be no additional installation space in the engine compartment available.

Der oben beschriebene Resonatorraum muß jedoch konstruktiv schon bei der Gestaltung des Saugrohrgehäuses beachtet werden. Nachteilig dabei ist, daß der beschriebene Resonator nicht nachträglich zur Verbesserung der Akustik eines Saugrohres verwendet werden kann, wenn die Ergebnisse hinsichtlich der Ansauggeräusche des Saugrohres unbefriedigend sind. In einer solchen Situation ist häufig auch im Motorraum kein zusätzlicher Platz für einen Nebenschlußresonator vorhanden, da die Entwicklung des fraglichen Fahrzeugs fast abgeschlossen ist. Dadurch können im Saugrohrbereich teure neue Konstruktion notwendig werden.However, the resonator space described above must be considered structurally already in the design of the intake manifold. The disadvantage here is that the resonator described can not be used subsequently to improve the acoustics of a suction tube, if the results are unsatisfactory with respect to the intake noise of the intake manifold. In such a situation, there is often no additional space for a shunt resonator even in the engine compartment since the development of the vehicle in question is almost completed. This can be necessary expensive new construction in Saugrohrbereich.

Aufgabe der Erfindung ist es einen Helmholzresonator zu schaffen der einen geringen Bauraum für sich beansprucht und auch nachträglich in eine bereits bestehende Saugrohrkonstruktion eingefügt werden kann. Dabei sollen entweder spezielle Frequenzen des Ansauggeräusches gedämpft werden oder eine Breitbanddämpfung erzielt werden.The object of the invention is to provide a Helmholzresonator claimed a small space for themselves and can also be added later in an existing Saugrohrkonstruktion. In this case, either special frequencies of the intake noise to be damped or broadband attenuation can be achieved.

Vorteile der ErfindungAdvantages of the invention

Erfindungsgemäß wird die Aufgabe dadurch gelöst, daß eine Innenstruktur in den Innenraum der Saugrohrs eingelegt und dort befestigt wird. Diese Innenstruktur bildet zusammen mit den Wänden des Saugrohres einen Resonatorraum, der mindestens eine Öffnung zum Saugrohrvolumen hin besitzen muß. Eine solche Innenstruktur benötigt keinen zusätzlichen Bauraum im Motorraum. Vorteilhaft ist weiterhin die Möglichkeit eines nachträglichen Einbaus. Dies ist vor allen Dingen bei Saugrohren einfach zu realisieren, die in Mehrschalentechnik gefertigt werden. Ebenso kann eine solche Innenstruktur jedoch durch die Einlaß- bzw. Auslaßöffnungen des Saugrohres eingebracht werden. Dabei muß die Gestalt des Saugrohres gar nicht oder nur unwesentlich verändert werden. Würde die Innenstruktur z. B. eingeklebt, muß diese lediglich an einen bestimmten Konturbereich des Saugrohres angepaßt werden. Vorteilhafterweise kann die Innenstruktur derart gestaltet sein, daß sie nach Montage im Saugrohr mehrere Resonatorräume unterschiedlichen Volumens erzeugt. Durch diese Maßnahme können unterschiedliche Frequenzen im Ansaugbereich schwerpunktmäßig gedämpft werden.According to the invention the object is achieved in that an inner structure is inserted into the interior of the suction tube and fastened there. This internal structure, together with the walls of the suction pipe, forms a resonator space which must have at least one opening to the intake manifold volume. Such an internal structure requires no additional space in the engine compartment. A further advantage is the possibility of retrofitting. This is especially easy to implement with suction tubes, which are manufactured in multi-shell technology. Likewise, however, such an internal structure can be introduced through the inlet or outlet openings of the suction tube. The shape of the suction tube does not have to be changed at all or only insignificantly. Would the internal structure z. B. glued, it must be adapted only to a certain contour region of the suction tube. Advantageously, the inner structure may be designed such that it generates a plurality of resonator chambers of different volume after mounting in the intake manifold. By this measure, different frequencies in the intake can be mainly attenuated.

Eine sinnvolle Variante der Erfindung sieht die Montage der Innenstruktur im Innenraum des Saugrohrs vor. Dieser ist vor den Ansaugkanälen zu den Zylindern angeordnet. Daher wirkt die Geräuschdämpfung auf alle Ansaugkanäle des Saugrohrs.A useful variant of the invention provides for the assembly of the inner structure in the interior of the suction tube. This is arranged in front of the intake ducts to the cylinders. Therefore, the noise damping acts on all intake ports of the intake manifold.

Nach einer sinnvollen Ausgestaltung der Innenstruktur ist diese aus einem flachen Bauteil, z. B. einem Lochblech, und Abstandhaltern aufgebaut. Der Resonatorraum entsteht demnach zwischen dem Lochblech und der Saugrohrwand. Vorteilhaft ist dabei, daß die Innenstruktur aus einfachen Halbzeugen herstellbar ist. Dies führt zu einer Erhöhung der Wirtschaftlichkeit bei Kleinserien, z. B. im Tuningbereich.After a meaningful design of the inner structure of these is a flat component, for. B. a perforated plate, and spacers constructed. The resonator space thus arises between the perforated plate and the Saugrohrwand. It is advantageous that the inner structure of simple semi-finished products can be produced. This leads to an increase in cost-effectiveness in small series, z. In the tuning area.

Eine alternative Variante der Innenstruktur sieht deren Gestaltung als Einlegeteil vor. Dieses kann einteilig ausgeführt sein mit positiven Wirkung auf die Wirtschaftlichkeit in der Großserie.An alternative variant of the internal structure provides for their design as an insert. This can be carried out in one piece with a positive effect on the economy in mass production.

Einer weiteren Ausgestaltung der Erfindung gemäß kann die Innenstruktur Bereiche unterschiedlicher Wandstärke aufweisen. Sieht man in einer Innenstruktur mehrere Öffnungen vor, so ergeben sich dadurch unterschiedliche Halslängen für den Nebenschlußresonator. Der positive Effekt dieser Maßnahme ist eine Breitbanddämpfung des Ansauggeräusches.According to a further embodiment of the invention, the inner structure may have regions of different wall thickness. If one sees several openings in an inner structure, this results in different neck lengths for the shunt resonator. The positive effect of this measure is a broadband attenuation of the intake noise.

Unter der Voraussetzung, daß die Innenstruktur sowie das Saugrohr aus demselben Material bestehen, kann die Innenstruktur auch in das Saugrohr eingeschweißt werden. Dies gilt insbesondere für Kunststoffsaugrohre, ist jedoch auch für metallische Saugrohre denkbar. Ein Kunststoffeiniegeteil kann insbesondere durch das Ultraschallschweißverfahren gefügt werden. Es sind allerdings auch andere Schweißverfahren, z. B. das Reibschweißverfahren, möglich.Provided that the inner structure and the suction tube made of the same material, the inner structure can also be welded into the intake manifold. This is especially true for plastic suction, but is also conceivable for metallic suction pipes. A plastic entry part can in particular be joined by the ultrasonic welding process. However, there are other welding methods, eg. As the friction welding, possible.

Diese und weitere Merkmale von bevorzugten Weiterbildungen der Erfindung gehen außer aus den Ansprüchen auch aus der Beschreibung und den Zeichnungen hervor, wobei die einzelnen Merkmale jeweils für sich allein oder zu mehreren in Form von Unterkombinationen bei der Ausführungsform der Erfindung und auf anderen Gebieten verwirklicht sein und vorteilhafte sowie für sich schutzfähige Ausführungen darstellen können, für die hier Schutz beansprucht wird.These and other features of preferred embodiments of the invention will become apparent from the claims and from the description and the drawings, wherein the individual features in each case alone or in the form of sub-combinations in the embodiment of the invention and on be realized other areas and can represent advantageous and protectable versions for which protection is claimed here.

Zeichnungdrawing

Weitere Einzelheiten der Erfindung werden in den Zeichnungen anhand von schematischen Ausführungsbeispielen beschrieben. Hierbei zeigen:

  • Figur 1 einen Schnitt durch ein Saugrohr für eine Brennkraftmaschine mit Reihenanordnung der Zylinder mit dem typischen spiralförmigen Verlauf des Saugkanals entlang der Linie A-A in Figur 2,
  • Figur 2 den Schnitt B-B gemäß Figur 1 durch den Sammelraum des Saugrohrs mit Aufsicht auf eine als Nebenschlußresonator wirkende Einlegestruktur und die Öffnungen der Ansaugkanäle,
  • Figur 3 einen schematischen Schnitt durch die Wand einer Innenstruktur mit veränderlicher Wandstärke und Bohrungen, die als Hälse unterschiedlicher Länge für den Resonator dienen und
  • Figur 4 den schematischen Schnitt durch eine Einlegestruktur zur Erzeugung zweier Resonatorräume unterschiedlichen Volumens.
Further details of the invention are described in the drawings with reference to schematic embodiments. Hereby show:
  • 1 shows a section through a suction pipe for an internal combustion engine with a row arrangement of the cylinder with the typical spiral shape of the suction channel along the line AA in Figure 2,
  • FIG. 2 shows the section BB according to FIG. 1 through the collecting space of the suction tube with a view of an insertion structure acting as shunt resonator and the openings of the intake channels,
  • Figure 3 shows a schematic section through the wall of an inner structure with variable wall thickness and holes, which serve as necks of different lengths for the resonator and
  • 4 shows the schematic section through an insertion structure for generating two Resonatorräume different volume.

Beschreibung der AusführungsbeispieleDescription of the embodiments

In Figur 1 ist ein Saugrohr 10 im Schnitt durch einen der Ansaugkanäle 11 dargestellt. Die Verbrennungsluft wird einem Sammelraum 12 durch einen nichtdargestellten Einlaß zugeführt. Der Sammelraum verteilt die Verbrennungsluft auf die Ansaugkanäle 11, die durch Auslässe 13 mit nicht dargestellten zylinderseitigen Lufteinläßen verbunden sind. Durch diese wird die Verbrennungsluft dem Motor zugeführt: Im Saugrohr entstehende Toträume 14 können dabei zur Dämpfung des Ansauggeräusches verwendet werden.In Figure 1, a suction pipe 10 is shown in section through one of the intake ports 11. The combustion air is supplied to a plenum 12 through an inlet, not shown. The collecting space distributes the combustion air to the intake ducts 11, which are connected by outlets 13 with not shown cylinder-side air inlets. Through this, the combustion air is supplied to the engine: dead spaces 14 formed in the intake manifold can be used for damping the intake noise.

Das Saugrohr besteht aus mehreren Schalen 15. Vor der Verschweißung der Schalen untereinander können Innenstrukturen 16 mit Innenwänden 17 des Saugrohrs in Verbindung gebracht werden. Die Innenstrukturen weisen Bohrungen 18 auf, die als Hälse für die durch die Innenstrukturen gebildeten Resonatorräume dienen. Die Innenstrukturen können bevorzugt im Sammelraum 12 des Saugrohrs angebracht werden.The suction tube consists of several shells 15. Before the shells are welded together, internal structures 16 can be brought into contact with inner walls 17 of the suction tube. The internal structures have bores 18, which serve as necks for the resonator spaces formed by the internal structures. The inner structures can preferably be mounted in the collecting space 12 of the suction tube.

Die Innenstrukturen 16 können aus einem gelochten Blech 19 und Abstandshaltern 20, die zwischen Innenwand 17 und Blech 19 angebracht sind, bestehen. Alternativ hierzu kann die Innenstruktur aus einem einzelnen Einlegeteil 21 bestehen, welches bevorzugt mit der Innenwand 17 verschweißt wird. Zu diesem Zweck müssen Schweißabsätze 22 an der Innenwand vorgesehen werden.
Die Verschweißung der Schalen 15 erfolgt nach Einbringen der Innenstrukturen 16.
The inner structures 16 may consist of a perforated plate 19 and spacers 20 which are mounted between the inner wall 17 and plate 19, consist. Alternatively, the inner structure may consist of a single insert part 21, which is preferably welded to the inner wall 17. For this purpose, welding shoulders 22 must be provided on the inner wall.
The welding of the shells 15 takes place after introduction of the inner structures 16.

In Figur 2 ist der Sammelraum 12 im Längsschnitt dargestellt. Er stellt die Verbindung eines Einlasses 24 für die Verbrennungsluft und den Saugkanalmündungen 25 dar.In Figure 2, the collection space 12 is shown in longitudinal section. It represents the connection of an inlet 24 for the combustion air and the Saugkanalmündungen 25.

Die Innenstruktur 16 ist in der Aufsicht dargestellt. In dieser Darstellung wird die vergleichsweise große Flächenausdehnung im Verhältnis zur Höhe der Innenstruktur (vergleiche Figur 1) deutlich. Diese Geometrie ist notwendig, da der Querschnitt des Sammelraumes nicht übermäßig stark verengt werden darf. Auf diese Weise ist eine ausreichende Luftversorgung der Ansaugkanäle gegeben.The inner structure 16 is shown in plan view. In this illustration, the comparatively large surface area in relation to the height of the inner structure (see FIG. 1) becomes clear. This geometry is necessary because the cross-section of the collecting space must not be excessively narrowed. In this way, a sufficient air supply of the intake ducts is given.

Die Figur 3 stellt einen Schnitt durch den Wandabschnitt einer Innenstruktur 16 dar. Die Wandstärke des Bauteils steigt in diesem Fall linear. Die Bohrungen 18, die in regelmäßigen Abständen in die Wand eingebracht sind und als Hälse für den Nebenschlußresonator dienen, weisen eine unterschiedliche Länge auf. Dadurch entfaltet der Nebenschlußresonator eine Breitbandwirkung.FIG. 3 shows a section through the wall section of an inner structure 16. The wall thickness of the component increases linearly in this case. The holes 18, which are introduced at regular intervals in the wall and serve as necks for the shunt resonator, have a different length. As a result, the shunt resonator exhibits a broadband effect.

Figur 4 zeigt schematisch eine Innenstruktur 16 mit mehreren Resonatorräumen 23. Diese werden durch eine Trennwand 26 gebildet, die sich auf der Innenwand 17 des Saugrohres abstützt. Die Innenstruktur kann über eine umlaufende Lippe 27 mit der Saugrohrwand verklebt werden.FIG. 4 schematically shows an inner structure 16 with a plurality of resonator cavities 23. These cavities are formed by a dividing wall 26 which rests on the inner wall 17 of the Suction tube supported. The inner structure can be glued via a circumferential lip 27 with the suction tube wall.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1010
Saugrohrsuction tube
1111
Ansaugkanalintake port
1212
Sammelraumplenum
1313
Auslaßoutlet
1414
Totraumdead space
1515
SchaleBowl
1616
Innenstrukturinternal structure
1717
Innenwandinner wall
1818
Bohrungdrilling
1919
Blechsheet
2020
Abstandshalterspacer
2121
Einlegeteilinsert
2222
Schweißabsatzwelding paragraph
2323
Resonatorraumresonator chamber
2424
EinlaßInlet
2525
Saugkanalmündungsuction channel
2626
Trennwandpartition wall
2727
Lippelip

Claims (6)

  1. Intake system for an intake duct (10) of an internal combustion engine, the said intake system comprising an inlet (24) and an outlet (13), wherein at least one internal structure (16) is mounted on the cavity-forming inner walls (17), the said internal structure being introducible subsequently into an already existing intake duct structure while at least substantially retaining the duct geometry and, in co-operation with the inner walls (17), defining the at least one resonator chamber (23), and the said resonator chamber includes at least one opening, more especially a bore (18) leading to the interior of the intake system, characterised in that the internal structure is adhesively bonded to the inner wall (17) or in that between the internal structure (16) and the inner walls (17) there are weld seams, more especially ultrasound weld seams.
  2. Intake system according to claim 1, characterised in that the at least one internal structure (16) is disposed in a manifold chamber (12) of the intake system.
  3. Intake system according to one of the preceding claims, characterised in that the internal structure (16) comprises a flat component, more especially a perforated sheet metal plate (19) and at least one spacer (20).
  4. Intake system according to one of claims 1 or 2, characterised in that the internal structure (16) comprises one single insert (21).
  5. Intake system according to the preceding claims, characterised in that the internal structure (16) includes regions of differing wall thicknesses, wherein at least two openings, more especially bores (18), are provided in regions of different wall thicknesses.
  6. Intake system according to one of the preceding claims, characterised in that the internal structure (16) and the intake duct are produced from the same material, more especially from plastics material.
EP98939521A 1997-06-20 1998-06-19 Induction system, especially for use as an induction port of an internal combustion engine Expired - Lifetime EP0990093B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19726327 1997-06-20
DE19726327 1997-06-20
PCT/EP1998/003771 WO1998059166A1 (en) 1997-06-20 1998-06-19 Induction system, especially for use as an induction port of an internal combustion engine

Publications (2)

Publication Number Publication Date
EP0990093A1 EP0990093A1 (en) 2000-04-05
EP0990093B1 true EP0990093B1 (en) 2006-09-13

Family

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EP98939521A Expired - Lifetime EP0990093B1 (en) 1997-06-20 1998-06-19 Induction system, especially for use as an induction port of an internal combustion engine

Country Status (8)

Country Link
US (1) US6205968B1 (en)
EP (1) EP0990093B1 (en)
JP (1) JP4089982B2 (en)
KR (1) KR100602747B1 (en)
BR (1) BR9810148A (en)
CA (1) CA2295004A1 (en)
DE (2) DE59813724D1 (en)
WO (1) WO1998059166A1 (en)

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DE19915523A1 (en) * 1999-04-07 2000-10-26 Porsche Ag Suction system for internal combustion engines
DE19924870A1 (en) * 1999-05-29 2000-11-30 Mann & Hummel Filter Intake pipe for the intake air of internal combustion engines with a relief point for pressure waves
DE10048755C1 (en) * 2000-09-29 2002-05-23 Basf Ag Noise-reduced devices
DE20113496U1 (en) 2001-08-14 2001-10-18 Porsche Ag Suction system for an internal combustion engine
US6609489B1 (en) 2002-05-07 2003-08-26 General Motors Corporation Apparatus and method for reducing engine noise
DE10322168B4 (en) * 2002-05-16 2008-12-18 Toyoda Gosei Co., Ltd. Air intake device
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DE10243881A1 (en) * 2002-09-21 2004-04-01 Mann + Hummel Gmbh Air noise reducing muffler and method of making the same
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US20050161280A1 (en) * 2002-12-26 2005-07-28 Fujitsu Limited Silencer and electronic equipment
JP4305828B2 (en) * 2003-03-31 2009-07-29 スズキ株式会社 Intake manifold for internal combustion engine
US7082915B2 (en) * 2003-04-07 2006-08-01 Aisan Kogyo Kabushiki Kaisha Resin intake manifold
WO2005073545A1 (en) * 2004-02-02 2005-08-11 Daimlerchrysler Ag Air filter system
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DE102007026826A1 (en) * 2007-06-06 2008-12-11 Mann + Hummel Gmbh intake system
US7950363B2 (en) * 2008-09-12 2011-05-31 Ford Global Technologies Air inlet system for internal combustion engine
US7938225B2 (en) * 2009-01-06 2011-05-10 Denso International America, Inc. Clean air duct noise silencing
US20110108358A1 (en) * 2009-11-06 2011-05-12 Jason Michael Edgington Noise attenuator and resonator
JP5685422B2 (en) * 2010-11-19 2015-03-18 本田技研工業株式会社 Cogeneration equipment
FR3014148B1 (en) * 2013-12-03 2019-06-07 Valeo Systemes Thermiques AIR INTAKE MANIFOLD FOR THERMAL ENGINE COMPRISING AN ACOUSTIC ATTENUATOR
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US10539066B1 (en) * 2018-11-21 2020-01-21 GM Global Technology Operations LLC Vehicle charge air cooler with an integrated resonator
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Also Published As

Publication number Publication date
EP0990093A1 (en) 2000-04-05
BR9810148A (en) 2001-12-26
JP4089982B2 (en) 2008-05-28
WO1998059166A1 (en) 1998-12-30
DE19827410A1 (en) 1999-01-14
JP2002504974A (en) 2002-02-12
DE59813724D1 (en) 2006-10-26
KR20010014012A (en) 2001-02-26
CA2295004A1 (en) 1998-12-30
US6205968B1 (en) 2001-03-27
KR100602747B1 (en) 2006-07-20

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