DE202005011669U1 - Bypass resonator for induction passage of internal combustion engine has element consisting of porous material installed inside connection between chamber of resonator and induction pipe - Google Patents

Bypass resonator for induction passage of internal combustion engine has element consisting of porous material installed inside connection between chamber of resonator and induction pipe Download PDF

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Publication number
DE202005011669U1
DE202005011669U1 DE200520011669 DE202005011669U DE202005011669U1 DE 202005011669 U1 DE202005011669 U1 DE 202005011669U1 DE 200520011669 DE200520011669 DE 200520011669 DE 202005011669 U DE202005011669 U DE 202005011669U DE 202005011669 U1 DE202005011669 U1 DE 202005011669U1
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DE
Germany
Prior art keywords
resonator
internal combustion
combustion engine
tubular connection
induction
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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DE200520011669
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German (de)
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Mercedes Benz Group AG
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DaimlerChrysler AG
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Application filed by DaimlerChrysler AG filed Critical DaimlerChrysler AG
Priority to DE200520011669 priority Critical patent/DE202005011669U1/en
Publication of DE202005011669U1 publication Critical patent/DE202005011669U1/en
Priority to PCT/EP2006/006908 priority patent/WO2007012414A1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
    • F02M35/10295—Damping means, e.g. tranquillising chamber to dampen air oscillations
    • 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
    • F01N1/003—Silencing apparatus characterised by method of silencing by using dead chambers communicating with gas flow passages
    • 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
    • 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
    • F02M35/10124—Ducts with special cross-sections, e.g. non-circular cross-section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10314—Materials for intake systems
    • F02M35/10321—Plastics; Composites; Rubbers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10314—Materials for intake systems
    • F02M35/10334—Foams; Fabrics; Porous media; Laminates; Ceramics; Coatings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1255—Intake silencers ; Sound modulation, transmission or amplification using resonance
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1272—Intake silencers ; Sound modulation, transmission or amplification using absorbing, damping, insulating or reflecting materials, e.g. porous foams, fibres, rubbers, fabrics, coatings or membranes
    • 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
    • F01N2490/14—Dead or resonance chambers connected to gas flow tube by relatively short side-tubes

Abstract

The bypass resonator (6) for the induction passage of an internal combustion engine (1) has a chamber (7) which via a pipe-form connection (8) is connected to the induction pipe (3). An element consisting of a porous material such as foam is installed inside the connection. The element is installed inside the pipe-form connection perpendicularly to the connection's center axis and fills out the cross section of the connection. The element has a thickness of preferably around 7mm. Independent claims are also included for the following: (A) an induction system (2) with at least one induction pipe and a bypass resonator as specified in the invention; and (B) an internal combustion engine with the aforesaid induction system.

Description

Die Erfindung betrifft einen Nebenschlussresonator für eine Ansaugleitung einer Brennkraftmaschine nach der im Oberbegriff von Anspruch 1 näher definierten Art. Des Weiteren betrifft die Erfindung eine Ansauganlage für eine Brennkraftmaschine sowie eine Brennkraftmaschine.The The invention relates to a shunt resonator for a suction line of a Internal combustion engine according to the closer defined in the preamble of claim 1 Art. Furthermore, the invention relates to an intake system for an internal combustion engine and an internal combustion engine.

Ein gattungsgemäßer Nebenschlussresonator sowie eine entsprechende Ansauganlage sind in der DE 197 43 482 A1 beschrieben. Solche Nebenschlussresonatoren werden an der Ansaugleitung angebracht, um eventuelle Rohrresonanzen zu unterdrücken und damit das Geräuschniveau im Innenraum eines Kraftfahrzeugs zu senken. Sie weisen eine hohle Kammer auf, die über ein kurzes Rohrstück, welches auch als Resonatorhals bezeichnet wird, mit der Ansaugleitung verbunden ist.A generic shunt resonator and a corresponding intake are in the DE 197 43 482 A1 described. Such shunt resonators are mounted on the intake pipe to suppress any pipe resonances and thus to reduce the noise level in the interior of a motor vehicle. They have a hollow chamber, which is connected via a short pipe section, which is also referred to as Resonatorhals, with the suction line.

Problematisch bei diesen bekannten Nebenschlussresonatoren ist jedoch, dass zwar die Rohrresonanz der Ansaugleitung unterdrückt wird, dass jedoch teilweise neue Resonanzfrequenzen entstehen, die bei anderen Motordrehzahlen zu einer erhöhten Schallabstrahlung durch das Luftfiltergehäuse führen. Dies kann bei bestimmten Drehzahlen der Brennkraftmaschine zu einer Überhöhung des Geräuschs im Innenraum des Kraftfahrzeugs führen.Problematic however, in these known shunt resonators, that is true the pipe resonance of the intake pipe is suppressed, but partially new resonant frequencies arise at different engine speeds to an increased sound radiation through the air filter housing to lead. This can at certain speeds of the internal combustion engine to an increase of the sound lead in the interior of the vehicle.

Es ist daher Aufgabe der vorliegenden Erfindung, einen Nebenschlussresonator für eine Ansaugleitung einer Brennkraftmaschine zu schaffen, bei welchem über den gesamten Drehzahl bereich nur eine geringe Schallabstrahlung zu verzeichnen ist.It It is therefore an object of the present invention to provide a shunt resonator for one To provide intake manifold of an internal combustion engine, in which over the entire speed range only a small sound radiation is recorded.

Erfindungsgemäß wird diese Aufgabe durch die in Anspruch 1 genannten Merkmale gelöst.According to the invention this Problem solved by the features mentioned in claim 1.

Durch das erfindungsgemäße, aus einem porösen Material bestehende Element innerhalb der rohrartigen Verbindung, mit welcher der Hohlraum des Nebenschlussresonators mit der Ansaugleitung verbunden ist, können Resonanzüberhöhungen so weit reduziert werden, dass die Schallabstrahlung durch das Luftfiltergehäuse keinen Einfluss auf das Innengeräusch des mit einem solchen Nebenschlussresonator ausgestatteten Kraftfahrzeugs hat. Auf diese Weise kann also bei hohen Motordrehzahlen das Innengeräusch erheblich gesenkt werden, wodurch sich für den Benutzer eine erhebliche Komfortverbesserung einstellt.By the invention, from a porous one Material existing element within the tubular connection, with which the cavity of the shunt resonator connected to the suction line is, can Resonance peaks so far be reduced, that the sound radiation through the air filter housing no Influence on the interior noise of the motor vehicle equipped with such a shunt resonator Has. In this way, so at high engine speeds, the interior noise considerably be lowered, which is responsible for the user sets a significant comfort improvement.

Eine besonders effektive Reduzierung der Resonanzüberhöhungen wurde bei einer Ausführungsform beobachtet, bei der das innerhalb der rohrartigen Verbindung angeordnete Element aus Schaumstoff besteht.A Particularly effective reduction of resonance peaks has been in one embodiment observed when arranged within the tubular connection Element made of foam.

Eine Ansauganlage mit wenigstens einer Ansaugleitung und einem erfindungsgemäßen Nebenschlussresonator ergibt sich aus den Merkmalen von Anspruch 7.A Intake system with at least one intake pipe and a shunt resonator according to the invention arises from the features of claim 7.

In Anspruch 8 ist eine Brennkraftmaschine mit einer derartigen Ansauganlage angegeben.In Claim 8 is an internal combustion engine with such an intake system specified.

Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den restlichen Unteransprüchen. Nachfolgend ist ein Ausführungsbeispiel der Erfindung anhand der Zeichnung prinzipmäßig beschrieben.advantageous Refinements and developments of the invention will become apparent the remaining dependent claims. Below is an embodiment the invention described in principle with reference to the drawing.

Dabei zeigen:there demonstrate:

1 eine Brennkraftmaschine mit einer Ansauganlage und einem an einer Ansaugleitung angebrachten, erfindungsgemäßen Nebenschlussresonator; 1 an internal combustion engine having an intake system and a bypass resonator according to the invention mounted on a suction line;

2 eine vergrößerte Schnittdarstellung des Nebenschlussresonators aus 1; und 2 an enlarged sectional view of the shunt resonator 1 ; and

3 ein Diagramm, in dem die Schallabstrahlung des Luftfiltergehäuses über der Schallfrequenz innerhalb der Ansaugleitung aufgetragen ist. 3 a diagram in which the sound radiation of the air filter housing is plotted against the sound frequency within the intake manifold.

1 zeigt in einer sehr schematischen Darstellung eine Brennkraftmaschine 1, zu welcher eine Ansauganlage 2 führt, welche die Brennkraftmaschine 1 mit Frischluft versorgt. Die Ansauganlage 2 weist im vorliegenden Fall eine Ansaugleitung 3 auf, in der in an sich bekannter Weise ein Luftfilter 4 angeordnet ist. Innerhalb der Brennkraftmaschine 1 erzeugte Abgase werden mittels einer Abgasanlage 5 aus derselben abgeführt. 1 shows a very schematic representation of an internal combustion engine 1 to which an intake system 2 which leads the internal combustion engine 1 supplied with fresh air. The intake system 2 has in the present case an intake pipe 3 on, in the manner known per se, an air filter 4 is arranged. Inside the internal combustion engine 1 generated exhaust gases are by means of an exhaust system 5 removed from the same.

An der Ansaugleitung 3 ist ein Nebenschlussresonator 6 angebracht, welcher einen Hohlraum 7 aufweist, der über eine auch als Resonatorhals bezeichnete rohrartige Verbindung 8 mit der Ansaugleitung 3 verbunden ist. Der Nebenschlussresonator 6 dient zur Unterdrückung einer bestimmten Resonanzfrequenz innerhalb der Ansaugleitung 3.At the intake pipe 3 is a shunt resonator 6 attached, which has a cavity 7 having, via a so-called resonator neck tubular connection 8th with the suction line 3 connected is. The shunt resonator 6 serves to suppress a certain resonant frequency within the intake pipe 3 ,

Um durch den Nebenschlussresonator 6 hervorgerufene Resonanzen im Bereich von anderen als der Resonanzfrequenz zu verhindern, ist, wie in dem Schnitt gemäß 2 zu erkennen, innerhalb der rohrartigen Verbindung 8 ein aus einem porösen Material bestehendes, im vorliegenden Fall scheibenförmig ausgebildetes Element 9 angeordnet, welches diese Resonanzüberhöhungen so weit reduziert, dass die Schallabstrahlung des Luftfilters 4 keinen Einfluss mehr auf das Geräusch innerhalb eines nicht dargestellten, mit der Brennkraftmaschine 1 ausgestatteten Kraftfahrzeugs hat. Obwohl prinzipiell ver schiedene poröse Materialien für das scheibenförmige Element 9 verwendet werden können, hat sich Schaumstoff als besonders gut geeignet erwiesen. Im vorliegenden Fall ist das scheibenförmige Element 9 im Wesentlichen senkrecht zu einer Mittelachse 10 der rohrartigen Verbindung 8 des Nebenschlussresonators 6 mit der Ansaugleitung 3 angeordnet.To pass through the shunt resonator 6 is to prevent evoked resonances in the range of other than the resonance frequency, as in the section according to 2 to recognize within the tubular connection 8th an existing of a porous material, in this case disc-shaped element 9 arranged, which reduces these resonance peaks so far that the sound radiation of the air filter 4 no longer affect the noise within a not shown, with the internal combustion engine 1 equipped motor vehicle has. Although in principle ver different porous materials for the disc-shaped element 9 can be used has become Foam proved to be particularly well suited. In the present case, the disk-shaped element 9 substantially perpendicular to a central axis 10 the tubular connection 8th of the shunt resonator 6 with the suction line 3 arranged.

Das scheibenförmige Element 9 ist des Weiteren so ausgeführt, dass es den Querschnitt der rohrartigen Verbindung 8 im Wesentlichen ausfüllt, wobei im vorliegenden Fall die rohrartige Verbindung 8 und das Element 9 einen im wesentlichen runden Querschnitt aufweisen. Bei der dargestellten Ansaugleitung 3 bzw. der rohrartigen Verbindung 8 weist das scheibenförmige Element 9 eine Dicke von 5 bis 9 mm, vorzugsweise ca. 7 mm, auf.The disk-shaped element 9 is further designed so that it is the cross section of the tubular connection 8th essentially fills, in the present case, the tubular connection 8th and the element 9 have a substantially round cross-section. In the illustrated suction line 3 or the tubular connection 8th has the disk-shaped element 9 a thickness of 5 to 9 mm, preferably about 7 mm.

Das scheibenförmige Element 9 kann innerhalb der rohrartigen Verbindung 8 mit Hilfe geeigneter Mittel fixiert werden. Im vorliegenden Fall ist das scheibenförmige Element 9 am Übergang der rohrartigen Verbindung 8 in dem Hohlraum 7 angeordnet, es kann jedoch prinzipiell an jeder Stelle innerhalb der rohrartigen Verbindung 8 angeordnet sein.The disk-shaped element 9 can be inside the tubular connection 8th be fixed by means of suitable means. In the present case, the disk-shaped element 9 at the transition of the tubular connection 8th in the cavity 7 However, it can in principle be located anywhere within the tubular connection 8th be arranged.

In 3 ist mittels der gestrichelten Linie der Verlauf der Schallabstrahlung des Luftfilters 4 über der Schallfrequenz innerhalb der Ansaugleitung 3 dargestellt, wenn auf den Nebenschlussresonator 6 vollständig verzichtet wird. Hierbei ist zu erkennen, dass in einem Bereich von ca. 175 Hz eine besonders hohe Schallabstrahlung zu verzeichnen ist. Mittels der strichpunktierten Linie ist der Verlauf der Schallabstrahlung dargestellt, wenn der Nebenschlussresonator 6 ohne das scheibenförmige Element 9 verwendet wird. Hierbei ergeben sich Maxima im Bereich von ca. 125 und ca. 240 Hz, wobei insbesondere das Maximum im Bereich von ca. 240 Hz eine annähernd so hohe Schallabstrahlung darstellt wie bei dem Verzicht auf den Nebenschlussresonator 6. Die durchgezogene Linie zeigt den Verlauf der Schallabstrahlung bei dem Ne benschlussresonator 6, bei dem sich innerhalb der rohrartigen Verbindung 8 das scheibenförmige Element 9 befindet. Hierbei ist ein sehr homogener Verlauf zu erkennen, dessen Maximum um mehr als 5 dB unterhalb der Maxima der beiden anderen Linie liegt.In 3 is by means of the dashed line the course of the sound radiation of the air filter 4 above the sound frequency within the intake pipe 3 shown when on the shunt resonator 6 is completely dispensed with. It can be seen that in a range of about 175 Hz, a particularly high sound radiation is recorded. By means of the dotted line the course of the sound radiation is shown, if the shunt resonator 6 without the disk-shaped element 9 is used. This results in maxima in the range of about 125 and about 240 Hz, in particular, the maximum in the range of about 240 Hz represents an approximately as high sound radiation as in the absence of the shunt resonator 6 , The solid line shows the course of the sound radiation at the Ne benschlussresonator 6 in which, within the tubular connection 8th the disk-shaped element 9 located. Here, a very homogeneous course can be seen, the maximum of which lies more than 5 dB below the maxima of the other two lines.

Zu dem Diagramm von 3 ist anzumerken, dass es sich dabei um ein spezielles Beispiel einer bestimmten Brennkraftmaschine 1 handelt und dass sich bei anderen Brennkraftmaschinen vollkommen andere Werte bezüglich der Frequenzen und der Schallabstrahlung ergeben können.To the diagram of 3 It should be noted that this is a specific example of a particular internal combustion engine 1 and that in other internal combustion engines completely different values with respect to the frequencies and the sound radiation can result.

Claims (8)

Nebenschlussresonator für eine Ansaugleitung einer Brennkraftmaschine, welcher einen Hohlraum aufweist, der über eine rohrartige Verbindung mit der Ansaugleitung verbunden ist, dadurch gekennzeichnet, dass innerhalb der rohrartigen Verbindung (8) ein aus einem porösen Material bestehendes Element (9) angeordnet ist.Shunt resonator for an intake line of an internal combustion engine, which has a cavity which is connected via a tubular connection with the intake line, characterized in that within the tubular connection ( 8th ) an element consisting of a porous material ( 9 ) is arranged. Nebenschlussresonator nach Anspruch 1, dadurch gekennzeichnet, dass das innerhalb der rohrartigen Verbindung (8) angeordnete Element (9) aus Schaumstoff besteht.Shunt resonator according to claim 1, characterized in that inside the tubular connection ( 8th ) arranged element ( 9 ) consists of foam. Nebenschlussresonator nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das innerhalb der rohrartigen Verbindung (8) angeordnete Element (9) im Wesentlichen senkrecht zu einer Mittelachse (10) der rohrartigen Verbindung (8) angeordnet ist.Shunt resonator according to claim 1 or 2, characterized in that inside the tubular connection ( 8th ) arranged element ( 9 ) substantially perpendicular to a central axis ( 10 ) of the tubular connection ( 8th ) is arranged. Nebenschlussresonator nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, dass das innerhalb der rohrartigen Verbindung (8) angeordnete Element (9) den Querschnitt der rohrartigen Verbindung (8) im Wesentlichen ausfüllt.Shunt resonator according to claim 1, 2 or 3, characterized in that inside the tubular connection ( 8th ) arranged element ( 9 ) the cross section of the tubular connection ( 8th ) substantially. Nebenschlussresonator nach Anspruch 4, dadurch gekennzeichnet, dass die rohrartige Verbindung (8) und das innerhalb der rohrartigen Verbindung (8) angeordnete Element (9) einen im Wesentlichen runden Querschnitt aufweisen.Shunt resonator according to claim 4, characterized in that the tubular connection ( 8th ) and within the tubular connection ( 8th ) arranged element ( 9 ) have a substantially round cross-section. Nebenschlussresonator nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass das innerhalb der rohrartigen Verbindung (8) angeordnete Element (9) eine Dicke von 5 bis 9 mm, vorzugsweise ca. 7 mm, aufweist.Shunt resonator according to one of claims 1 to 5, characterized in that within the tubular connection ( 8th ) arranged element ( 9 ) has a thickness of 5 to 9 mm, preferably about 7 mm. Ansauganlage mit wenigstens einer Ansaugleitung und mit einem Nebenschlussresonator nach einem der Ansprüche 1 bis 6.Intake system with at least one suction line and with a shunt resonator according to one of claims 1 to 6th Brennkraftmaschine mit einer Ansauganlage nach Anspruch 7.Internal combustion engine with an intake system according to claim 7th
DE200520011669 2005-07-26 2005-07-26 Bypass resonator for induction passage of internal combustion engine has element consisting of porous material installed inside connection between chamber of resonator and induction pipe Expired - Lifetime DE202005011669U1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE200520011669 DE202005011669U1 (en) 2005-07-26 2005-07-26 Bypass resonator for induction passage of internal combustion engine has element consisting of porous material installed inside connection between chamber of resonator and induction pipe
PCT/EP2006/006908 WO2007012414A1 (en) 2005-07-26 2006-07-14 Shunt resonator for an intake line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200520011669 DE202005011669U1 (en) 2005-07-26 2005-07-26 Bypass resonator for induction passage of internal combustion engine has element consisting of porous material installed inside connection between chamber of resonator and induction pipe

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DE202005011669U1 true DE202005011669U1 (en) 2005-09-29

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014217334A1 (en) 2014-08-29 2016-03-03 Mahle International Gmbh Shunt resonator for a fresh air system of an internal combustion engine
WO2018225078A1 (en) 2017-06-05 2018-12-13 Mahle Behr India Private Limited Charge-air cooler for a fresh-air system of an internal combustion engine
US20230089571A1 (en) * 2018-09-12 2023-03-23 Tmg Performance Products, Llc Method and apparatus for suppressing undesirable tones in an exhaust system

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Publication number Priority date Publication date Assignee Title
JP7088683B2 (en) * 2018-01-30 2022-06-21 トヨタ自動車株式会社 Hose resonator connection structure

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JPS6013912A (en) * 1983-07-04 1985-01-24 Chiyoda Chem Eng & Constr Co Ltd Silencer
JPH079172B2 (en) * 1985-08-14 1995-02-01 ヤマハ発動機株式会社 Silencer for internal combustion engine
JPH02285686A (en) * 1989-04-27 1990-11-22 Matsushita Electric Ind Co Ltd Gas laser
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JP2000205068A (en) * 1999-01-13 2000-07-25 Kobe Steel Ltd Noise eliminator for piping system
JP2004036778A (en) * 2002-07-04 2004-02-05 Kobe Steel Ltd Pressure pulsation absorber

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014217334A1 (en) 2014-08-29 2016-03-03 Mahle International Gmbh Shunt resonator for a fresh air system of an internal combustion engine
WO2018225078A1 (en) 2017-06-05 2018-12-13 Mahle Behr India Private Limited Charge-air cooler for a fresh-air system of an internal combustion engine
US20230089571A1 (en) * 2018-09-12 2023-03-23 Tmg Performance Products, Llc Method and apparatus for suppressing undesirable tones in an exhaust system

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