WO2012113480A1 - Charge air pipe having a resonator - Google Patents

Charge air pipe having a resonator Download PDF

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Publication number
WO2012113480A1
WO2012113480A1 PCT/EP2011/073534 EP2011073534W WO2012113480A1 WO 2012113480 A1 WO2012113480 A1 WO 2012113480A1 EP 2011073534 W EP2011073534 W EP 2011073534W WO 2012113480 A1 WO2012113480 A1 WO 2012113480A1
Authority
WO
WIPO (PCT)
Prior art keywords
resonator
fluid line
inner part
outer part
connecting pieces
Prior art date
Application number
PCT/EP2011/073534
Other languages
German (de)
French (fr)
Inventor
Axel Bornemann
Holger Fassl
Original Assignee
Contitech Mgw Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Contitech Mgw Gmbh filed Critical Contitech Mgw Gmbh
Publication of WO2012113480A1 publication Critical patent/WO2012113480A1/en

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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
    • F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1255—Intake silencers ; Sound modulation, transmission or amplification using resonance
    • F02M35/1266—Intake silencers ; Sound modulation, transmission or amplification using resonance comprising multiple chambers or compartments
    • 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
    • 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
    • F02M35/1034—Manufacturing and assembling intake systems
    • F02M35/10354—Joining multiple sections together
    • 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
    • F02M35/1283—Manufacturing or assembly; Connectors; Fixations
    • 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
    • F02M35/1015—Air intakes; Induction systems characterised by the engine type
    • F02M35/10157—Supercharged engines

Definitions

  • the invention relates to a fluid line, in particular a charge air line for an internal combustion engine having an exhaust gas turbocharger, with at least one resonator, wherein the resonator has an inner part and at least one outer part and the at least one outer part is part of the fluid line.
  • the resonator requires no separate inner part, wherein the necessary for the sound refraction grooves are formed by a forming process of the pipe wall.
  • the particularly advantageous for the damping of high-frequency oscillations training sharp demolition edges of the grooves can be realized with the help of chipless forming of pipe walls only consuming, since wall thickness-dependent edge radii arise.
  • this support jacket is arranged on the outside of the conduit, it can in the cavities formed between the support shell and the pipe wall to
  • Outer wall of the resonator is a smooth-walled elastomer hose.
  • the separate inner part of the resonator can be inserted into the tube and radially positioned there by means of a holder.
  • the flow cross-section of the charge air line is significantly narrowed by this construction in the region of the resonator, which entails flow losses
  • an additional pressure ring is provided for axially fixing the inner part, which clamps the inner part from the outside by radial deformation of the tubular body.
  • a significant elasticity of the pipe material is required, which is the choice of
  • the invention has the object to improve a fluid line of the type described so that the attenuation of high-frequency vibrations without
  • the fluid line consists of two parts
  • the outer part of the resonator has two sections, each section is formed from a relative to the rest of the line in diameter enlarged nozzle, wherein the nozzle from one axial end portion of the respective associated portion the fluid line can be produced by blow molding and whose inner diameter corresponds to the inner part, each nozzle is axially slipped over a respectively associated end of the inner part, such that the respective axial ends of the nozzle come to lie opposite each other, and the axial ends of the nozzle so airtight connectable to each other, that from both connected nozzles an airtight
  • Outer jacket can be formed around the inner part, wherein the axial length of the outer shell is dimensioned such that the inner part with its axial ends by the opposite the nozzle in the smaller diameter, adjacent to the nozzle pipe sections is axially fixed in the fluid line.
  • the inventive solution blow molding is applicable as a manufacturing process, which allows a cost-effective solution.
  • the inner part at its two axial ends in each case a stop buffer made of elastomeric material.
  • stop buffers are formed as integrally formed, annular, axially projecting elastomeric sealing lips.
  • This variant has the advantage that the stop buffers are not lost when the stub of the outer part.
  • FIG. 1 shows a cut-open section of a fluid line 1 according to the invention.
  • the section 1 comprises a resonator region 2.
  • the resonator region 2 has a resonator body 3, which has annular grooves 4.
  • the resonator region 2 has an outer part 5.
  • the outer part 5 is characterized in that it is welded together in airtight manner from two partial stubs 6 and 7 at a weld 8.
  • the partial stubs 6 and 7 are compared with each corresponding and cohesively connected to the respective nozzle 6 and 7 connected line parts 9 and 10 in diameter.
  • the line parts 9 and 10 with the corresponding part piece 6 and 7 are made of a thermoplastic, weldable plastic by blow molding.
  • the smallest inner diameter 11 of the resonator body 3 is dimensioned such that it is almost equal to the inner diameter 12 of the conduit parts 9 and 10.
  • Resonator body 3 has at each of its axial ends in each case a sealing lip 13 made of elastomeric material, which comprises the associated axial end annular.
  • a transition region 14, 15 is arranged in each case.
  • the inner diameter of the partial connecting pieces 6 and 7 is dimensioned such that the resonator body 3 with its outer diameter fits into the partial connecting pieces 6, 7 without clearance or with little radial play.
  • Transition region 14, 15 has in the interior immediately in the end region of the respective associated line parts 9, 10 and before the start of the diameter increase in each case a radially encircling edge 16, 17.
  • the partial stubs 6, 7 can be welded together in such a way that, on the one hand, the seam 8 is airtight, and, on the other hand, the outer part 5 of the resonator region formed by the welded-on partial stubs 6 and 7 2 axially defines the resonator body 3 with the associated sealing lips 13 between the sharp edges 16 and 17.
  • the sealing lips 13 correspond to the sharp edges 16 and 17, whereby an axial clearance of the resonator body 3 can be avoided.
  • Conduction parts 9 and 10 have an enlarged diameter, it is possible, the inner diameter 11 of the resonator body 3 with the inner diameter 12 of

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Exhaust Silencers (AREA)

Abstract

The invention relates to a fluid pipe (1), in particular a charge air pipe for an internal combustion engine having an exhaust gas turbocharger, comprising at least one resonator (2, 3, 5), wherein the resonator (2, 3, 5) has an inner part (3) and at least one outer part (5, 6, 7) and the at least one outer part (5, 6, 7) is a component part of the fluid pipe (1, 9, 10). In order to permit high-frequency oscillations to be damped without appreciably restricting the flow cross-section, and to simplify the production and assembly of the pipe, according to the invention the outer part (5) of the resonator (2, 3, 5) is formed from two blow-moulded partial connecting pieces (6, 7), wherein the connecting pieces (6, 7) can be welded to each other in an airtight manner. In this connection the resonator body can be axially fixed between two stop edges (16, 17) inside the outer part (5).

Description

Beschreibung  description
Ladeluftleitung mit Resonator Charge air line with resonator
Die Erfindung betrifft eine Fluidleitung, insbesondere eine Ladeluftleitung für eine Brennkraftmaschine mit einem Abgasturbolader, mit mindestens einem Resonator, wobei der Resonator ein Innenteil und mindestens ein Außenteil aufweist und das mindestens eine Außenteil Bestandteil der Fluidleitung ist. The invention relates to a fluid line, in particular a charge air line for an internal combustion engine having an exhaust gas turbocharger, with at least one resonator, wherein the resonator has an inner part and at least one outer part and the at least one outer part is part of the fluid line.
Derartige Fluidleitungen sind an sich bekannt und werden zur Verminderung der Such fluid lines are known per se and are used to reduce the
Strömungsgeräusche im Fahrzeugbau eingesetzt. Insbesondere sollen dabei auch hochfrequente Schallemissionen gedämpft werden. Flow noise used in vehicle construction. In particular, high-frequency sound emissions should also be damped.
In der DE 102 19 964 ist eine gattungsgemäße Ladeluftleitung offenbart, deren Resonator ohne separates Innenteil auskommt, wobei die zur Schallbrechung notwendigen Nuten durch einen Umformvorgang der Rohrwandung gebildet sind. Die für die Dämpfung hochfrequenter Schwingungen besonders vorteilhafte Ausbildung scharfer Abrisskanten der Nuten ist mit Hilfe von spanloser Umformung von Rohrwandungen nur aufwendig realisierbar, da wanddickenabhängige Kantenradien entstehen. Außerdem ist zur In DE 102 19 964 a generic charge air line is disclosed, the resonator requires no separate inner part, wherein the necessary for the sound refraction grooves are formed by a forming process of the pipe wall. The particularly advantageous for the damping of high-frequency oscillations training sharp demolition edges of the grooves can be realized with the help of chipless forming of pipe walls only consuming, since wall thickness-dependent edge radii arise. In addition, to the
Vermeidung von Längsschwingungen des entsprechenden Rohrab Schnittes ein Stützmantel erforderlich, der bei der Herstellung oder der Montage der Leitung berücksichtigt werden muss. Avoidance of longitudinal vibrations of the corresponding pipe section cut a support jacket required, which must be considered in the manufacture or installation of the line.
Da dieser Stützmantel auf der Außenseite der Leitung angeordnet ist, kann es in den zwischen dem Stützmantel und der Rohrwandung gebildeten Hohlräumen zu Since this support jacket is arranged on the outside of the conduit, it can in the cavities formed between the support shell and the pipe wall to
unerwünschter Korrosion oder Ansammlung von Schmutz und Abriebpartikeln kommen. In der DE 10 2009 024 728 AI ist ein Luftführungsbauteil offenbart, bei dem die unwanted corrosion or accumulation of dirt and abrasion particles come. In DE 10 2009 024 728 AI an air guide member is disclosed in which the
Außenwandung des Resonatorbereiches ein glattwandiger Elastomerschlauch ist. Das separate Innenteil des Resonators ist in das Rohr einschiebbar und dort mittels eines Halters radial positionierbar. Outer wall of the resonator is a smooth-walled elastomer hose. The separate inner part of the resonator can be inserted into the tube and radially positioned there by means of a holder.
Einerseits ist der Strömungsquerschnitt der Ladeluftleitung durch diese Bauweise im Bereich des Resonators deutlich verengt, was Strömungsverluste mit sich bringt, andererseits ist zur axialen Fixierung des Innenteils ein zusätzlicher Pressring vorgesehen, der durch radiale Verformung des Rohrkörpers von außen das Innenteil festklemmt. Hier ist eine deutliche Elastizität des Rohrmaterials erforderlich, was die Auswahl der On the one hand, the flow cross-section of the charge air line is significantly narrowed by this construction in the region of the resonator, which entails flow losses, on the other hand, an additional pressure ring is provided for axially fixing the inner part, which clamps the inner part from the outside by radial deformation of the tubular body. Here, a significant elasticity of the pipe material is required, which is the choice of
Materialien für die Rohrwandung einschränkt. Limits materials for the pipe wall.
Der Erfindung liegt die Aufgabe zugrunde, eine Fluidleitung der eingangs geschilderten Art so zu verbessern, dass die Dämpfung hochfrequenter Schwingungen ohne The invention has the object to improve a fluid line of the type described so that the attenuation of high-frequency vibrations without
nennenswerte Einschränkung des Strömungsquerschnitts möglich ist und dabei die appreciable restriction of the flow cross section is possible and thereby the
Herstellung und Montage der Leitung vereinfacht ist. Production and installation of the line is simplified.
Diese Aufgabe wird dadurch gelöst, dass die Fluidleitung aus zwei Teilen besteht, das Außenteil des Resonators zwei Teilstücke aufweist, wobei jedes Teilstück aus einem gegenüber der übrigen Leitung im Durchmesser vergrößerten Stutzen gebildet ist, wobei die Stutzen aus jeweils einem axialen Endbereich des jeweils zugeordneten Teilstücks der Fluidleitung durch Blasformen herstellbar sind und deren Innendurchmesser mit dem Innenteil korrespondiert, jeder Stutzen axial über ein jeweils zugeordnetes Ende des Innenteils stülpbar ist, derart, dass die jeweiligen axialen Enden der Stutzen einander gegenüber zu liegen kommen, und die axialen Enden der Stutzen derart luftdicht miteinander verbindbar sind, dass aus beiden verbundenen Stutzen ein luftdichter This object is achieved in that the fluid line consists of two parts, the outer part of the resonator has two sections, each section is formed from a relative to the rest of the line in diameter enlarged nozzle, wherein the nozzle from one axial end portion of the respective associated portion the fluid line can be produced by blow molding and whose inner diameter corresponds to the inner part, each nozzle is axially slipped over a respectively associated end of the inner part, such that the respective axial ends of the nozzle come to lie opposite each other, and the axial ends of the nozzle so airtight connectable to each other, that from both connected nozzles an airtight
Außenmantel um das Innenteil bildbar ist, wobei die axiale Länge des Außenmantels derart bemessen ist, dass das Innenteil mit seinen axialen Enden durch die gegenüber den Stutzen im Durchmesser kleineren, an die Stutzen angrenzenden Teilrohrstücke axial in der Fluidleitung festlegbar ist. Mit einer derartigen Anordnung ist es möglich, den Resonator derartig auszubilden, dass eine Verengung des Strömungsquerschnitts vermeidbar ist. Außerdem ist für die erfindungsgemäße Lösung das Blasformen als Herstellverfahren anwendbar, was eine kostengünstige Lösung ermöglicht. Outer jacket can be formed around the inner part, wherein the axial length of the outer shell is dimensioned such that the inner part with its axial ends by the opposite the nozzle in the smaller diameter, adjacent to the nozzle pipe sections is axially fixed in the fluid line. With such an arrangement, it is possible to form the resonator such that a narrowing of the flow cross-section is avoidable. In addition, for the inventive solution blow molding is applicable as a manufacturing process, which allows a cost-effective solution.
Da das Innenteil separat zu fertigen ist, sind optimierte Nutformen mit den gewünschten scharfen Kanten möglich. Erhöhte Anforderungen an die Elastizität der Rohrwandung müssen nicht erfüllt sein, da eine axiale Festlegung des Innenteils formschlüssig erfolgt. Die Beeinflussung der Schwingungen ist erfindungsgemäß durch scharfe Kanten desSince the inner part is to be manufactured separately, optimized groove shapes with the desired sharp edges are possible. Increased demands on the elasticity of the pipe wall need not be met, since an axial fixing of the inner part is positively. The influence of the vibrations is inventively by sharp edges of the
Innenteils realisierbar, so dass separate, gegeneinander luftdichte Kammern des Resonators nicht erforderlich sind. Ein besonders hoher Anspruch an die Durchmessertoleranzen von Resonator und Außenteil sind deshalb nicht zu stellen. In einer Weiterbildung der Erfindung weist das Innenteil an seinen beiden axialen Enden jeweils einen Anschlagpuffer aus elastomerem Material auf. Can be realized on the inside, so that separate, airtight chambers of the resonator are not required. A particularly high demand on the diameter tolerances of resonator and outer part are therefore not to ask. In one embodiment of the invention, the inner part at its two axial ends in each case a stop buffer made of elastomeric material.
Durch die Verwendung von Anschlagpuffern ist auch eine besondere Genauigkeit der axialen Länge des Innenteils oder der blasgeformten Stutzen nicht mehr erforderlich, da axiale Spalte durch die elastischen Anschlagpuffer ausfüllbar sind. Damit ist By using bump stops and a special accuracy of the axial length of the inner part or the blow-molded nozzle is no longer necessary because axial gaps are filled by the elastic bump stop. This is
sichergestellt, dass das Innenteil im Betrieb nicht klappert. ensures that the inner part does not rattle during operation.
In einer Weiterbildung der Erfindung sind die Anschlagpuffer als angeformte, ringförmige, axial vorspringende elastomere Dichtlippen ausgebildet. In a further development of the invention, the stop buffers are formed as integrally formed, annular, axially projecting elastomeric sealing lips.
Diese Variante hat den Vorteil, dass die Anschlagpuffer beim Stülpen der Stutzen des Außenteils nicht verloren gehen. This variant has the advantage that the stop buffers are not lost when the stub of the outer part.
In der Zeichnung wird nachfolgend ein Ausführungsbeispiel der Erfindung näher erläutert. Die Fig. 1 zeigt ein aufgeschnittenes Teilstück einer erfindungsgemäßen Fluidleitung 1. Das Teilstück 1 umfasst einen Resonatorbereich 2. Der Resonatorbereich 2 weist einen Resonatorkörper 3 auf, der ringförmig angeordnete Nuten 4 aufweist. Weiter weist der Resonatorbereich 2 ein Außenteil 5 auf. Das Außenteil 5 ist dadurch gekennzeichnet, dass es aus zwei Teilstutzen 6 und 7 an einer Schweißstelle 8 luftdicht zusammengeschweißt ist. In the drawing, an embodiment of the invention will be explained in more detail below. 1 shows a cut-open section of a fluid line 1 according to the invention. The section 1 comprises a resonator region 2. The resonator region 2 has a resonator body 3, which has annular grooves 4. Furthermore, the resonator region 2 has an outer part 5. The outer part 5 is characterized in that it is welded together in airtight manner from two partial stubs 6 and 7 at a weld 8.
Die Teilstutzen 6 und 7 sind gegenüber jeweils korrespondierenden und mit den jeweiligen Stutzen 6 und 7 stoffschlüssig verbundenen Leitungsteilen 9 und 10 im Durchmesser vergrößert. The partial stubs 6 and 7 are compared with each corresponding and cohesively connected to the respective nozzle 6 and 7 connected line parts 9 and 10 in diameter.
Die Leitungsteile 9 und 10 mit den korrespondierenden Teilstutzen 6 und 7 sind aus einem thermoplastischen, verschweißbaren Kunststoff mittels Blasformtechnik herstellbar. The line parts 9 and 10 with the corresponding part piece 6 and 7 are made of a thermoplastic, weldable plastic by blow molding.
Der kleinste Innendurchmesser 11 des Resonatorkörpers 3 ist derart bemessen, dass er mit dem Innendurchmesser 12 der Leitungsteile 9 und 10 nahezu gleich ist. Der The smallest inner diameter 11 of the resonator body 3 is dimensioned such that it is almost equal to the inner diameter 12 of the conduit parts 9 and 10. Of the
Resonatorkörper 3 weist an jedem seiner axialen Enden jeweils eine Dichtlippe 13 aus elastomerem Material auf, die das zugeordnete axiale Ende ringförmig umfasst.  Resonator body 3 has at each of its axial ends in each case a sealing lip 13 made of elastomeric material, which comprises the associated axial end annular.
Zwischen dem Leitungsteil 9 und dem zugeordneten Teilstutzen 6 sowie dem Leitungsteil 10 und dem Teilstutzen 7 ist jeweils ein Übergangsbereich 14, 15 angeordnet. In denBetween the conduit part 9 and the associated part of the pipe 6 and the conduit part 10 and the partial piece 7, a transition region 14, 15 is arranged in each case. In the
Übergangsbereichten 14, 15 geht der Innendurchmesser 12 der Leitungsteile 9, 10 in den Innendurchmesser der Teilstutzen 6 und 7 über. Der Innendurchmesser der Teilstutzen 6 und 7 ist derart bemessen, dass der Resonatorkörper 3 mit seinem Außendurchmesser spielfrei oder mit geringem radialen Spiel in die Teilstutzen 6, 7 hineinpasst. Jeder Transitional reports 14, 15, the inner diameter 12 of the line parts 9, 10 in the inner diameter of the partial stub 6 and 7 over. The inner diameter of the partial connecting pieces 6 and 7 is dimensioned such that the resonator body 3 with its outer diameter fits into the partial connecting pieces 6, 7 without clearance or with little radial play. Everyone
Übergangsbereich 14, 15 weist im Innenraum unmittelbar im Endbereich der jeweils zugeordneten Leitungsteile 9, 10 und vor Beginn der Durchmesservergrößerung jeweils eine radial umlaufende Kante 16, 17 auf. Transition region 14, 15 has in the interior immediately in the end region of the respective associated line parts 9, 10 and before the start of the diameter increase in each case a radially encircling edge 16, 17.
Die Teilstutzen 6, 7 sind nach dem Einbringen des Resonatorkörpers 3 in der Naht 8 derart miteinander verschweißbar, dass einerseits die Naht 8 luftdicht ist, andererseits dass das durch die verschweißten Teilstutzen 6 und 7 gebildete Außenteil 5 des Resonatorbereiches 2 den Resonatorkörper 3 mit den zugeordneten Dichtlippen 13 zwischen den scharfen Kanten 16 und 17 axial festlegt. After the resonator body 3 has been introduced into the seam 8, the partial stubs 6, 7 can be welded together in such a way that, on the one hand, the seam 8 is airtight, and, on the other hand, the outer part 5 of the resonator region formed by the welded-on partial stubs 6 and 7 2 axially defines the resonator body 3 with the associated sealing lips 13 between the sharp edges 16 and 17.
Dabei korrespondieren die Dichtlippen 13 mit den scharfen Kanten 16 und 17, wodurch ein axiales Spiel des Resonatorkörpers 3 vermeidbar ist. In this case, the sealing lips 13 correspond to the sharp edges 16 and 17, whereby an axial clearance of the resonator body 3 can be avoided.
Dadurch, dass die Teilstutzen 6 und 7 und damit das Außenteil 5 gegenüber den Because of the partial stub 6 and 7 and thus the outer part 5 with respect to the
Leitungsteilen 9 und 10 einen vergrößerten Durchmesser aufweisen, ist es möglich, den Innendurchmesser 11 des Resonatorkörpers 3 mit dem Innendurchmesser 12 der Conduction parts 9 and 10 have an enlarged diameter, it is possible, the inner diameter 11 of the resonator body 3 with the inner diameter 12 of
Leitungsteile 9 und 10 nahezu gleichzusetzen. Damit ist es möglich, Strömungsverluste zu minimieren. Align parts 9 and 10 almost. This makes it possible to minimize flow losses.
Bezugszeichenliste LIST OF REFERENCE NUMBERS
(Teil der Beschreibung)  (Part of the description)
1 Fluidleitung 1 fluid line
2 Re sonatorb er ei ch 2 Re sonator s e ch
3 Resonatorkörper  3 resonator body
4 Nuten des Resonatorkörpers 3  4 grooves of the resonator body 3
5 Außenteil  5 outer part
6,7 Teilstutzen des Außenteils 5  6.7 partial socket of the outer part 5
8 Schweissstelle 8 welding site
9, 10 Leitungsteile der Fluidleitung 1  9, 10 line parts of the fluid line. 1
11 Innendurchmesser des Resonatorkörpers 3 11 inner diameter of the resonator body 3
12 Innendurchmesser der Leitungsteile 9, 1012 inner diameter of the pipe parts 9, 10th
13 Dichtlippen des Resonatorkörpers 3 13 sealing lips of the resonator 3
14, 15 Üb ergangsb er ei che 14, 15 Exercise books
16, 17 umlaufende Kanten der Übergangsbereiche 14, 15  16, 17 circumferential edges of the transition regions 14, 15th

Claims

Patentansprüche claims
1. Fluidleitung (1) , insbesondere eine Ladeluftleitung für eine Brennkraftmaschine mit einem Abgasturbolader, mit mindestens einem Resonator (2, 3, 5), wobei der Resonator (2, 3, 5) ein Innenteil (3) und mindestens ein Außenteil (5, 6, 7) aufweist und das mindestens eine Außenteil (5, 6, 7) Bestandteil der Fluidleitung (1, 9, 10) ist, 1. fluid line (1), in particular a charge air line for an internal combustion engine with an exhaust gas turbocharger, with at least one resonator (2, 3, 5), wherein the resonator (2, 3, 5) an inner part (3) and at least one outer part (5 , 6, 7) and the at least one outer part (5, 6, 7) is part of the fluid line (1, 9, 10),
dadurch gekennzeichnet, dass characterized in that
die Fluidleitung (1) aus zwei Teilen (9, 10) besteht, the fluid line (1) consists of two parts (9, 10),
das Außenteil (5, 6, 7) des Resonators (2, 3, 5) zwei Teilstücke (6, 7) aufweist, wobei jedes Teilstück (6, 7) aus einem gegenüber der übrigen Leitung (9, 10) im Durchmesser vergrößerten Stutzen (6, 7) gebildet ist, the outer part (5, 6, 7) of the resonator (2, 3, 5) has two sections (6, 7), wherein each section (6, 7) consists of a nozzle enlarged in diameter relative to the remaining line (9, 10) (6, 7) is formed,
wobei die Stutzen (6, 7) aus jeweils einem axialen Endbereich des jeweils zugeordneten Teilstücks (9, 10) der Fluidleitung (1) durch Blasformen herstellbar sind und deren wherein the connecting pieces (6, 7) from each axial end region of the respective associated portion (9, 10) of the fluid line (1) can be produced by blow molding and their
Innendurchmesser mit dem Innenteil korrespondiert, Inner diameter corresponds to the inner part,
jeder Stutzen (6, 7) axial über ein jeweils zugeordnetes Ende des Innenteils (3) stülpbar ist, derart, dass die jeweiligen axialen Enden der Stutzen (6, 7) einander gegenüber zu liegen kommen, und each stub (6, 7) is axially slidable over a respectively associated end of the inner part (3), such that the respective axial ends of the stubs (6, 7) come to lie opposite each other, and
die axialen Enden der Stutzen (6, 7) derart luftdicht miteinander verbindbar sind, dass aus beiden verbundenen Stutzen (6, 7) ein luftdichter Außenmantel (5, 8) um das Innenteil (3) bildbar ist, the axial ends of the connecting pieces (6, 7) can be connected airtight to one another such that an air-tight outer jacket (5, 8) can be formed around the inner part (3) from both connected connecting pieces (6, 7),
wobei die axiale Länge des Außenmantels (5) derart bemessen ist, dass das Innenteil (3) mit seinen axialen Enden durch die gegenüber den Stutzen (6, 7) im Durchmesser kleineren, an die Stutzen (6, 7) angrenzenden Teilrohrstücke (9, 10) axial in der wherein the axial length of the outer jacket (5) is dimensioned such that the inner part (3) with its axial ends by the relative to the nozzle (6, 7) in the smaller diameter, to the nozzle (6, 7) adjacent part pipe pieces (9, 10) axially in the
Fluidleitung (1) festlegbar ist. Fluid line (1) can be fixed.
2. Fluidleitung (1) nach Anspruch 1, dadurch gekennzeichnet, dass das Innenteil (3) an seinen beiden axialen Enden jeweils einen Anschlagpuffer (13) aus elastomerem Material aufweist. Second fluid line (1) according to claim 1, characterized in that the inner part (3) has at its two axial ends in each case a stop buffer (13) made of elastomeric material.
3. Fluidleitung (1) nach Anspruch 2, dadurch gekennzeichnet, dass die Anschlagpuffer (13) als angeformte, ringförmige, axial vorspringende elastomere Dichtlippen ausgebildet sind. 3. fluid line (1) according to claim 2, characterized in that the stop buffer (13) are formed as integrally formed, annular, axially projecting elastomeric sealing lips.
PCT/EP2011/073534 2011-02-24 2011-12-21 Charge air pipe having a resonator WO2012113480A1 (en)

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DE102016221105A1 (en) 2016-10-26 2018-04-26 Etm Engineering Technologie Marketing Gmbh Air duct for the intake tract of an internal combustion engine

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WO2017025315A1 (en) 2015-08-12 2017-02-16 Etm Engineering Technologie Marketing Gmbh Air pipe for the intake tract of an internal combustion engine
DE102015215394A1 (en) 2015-08-12 2017-02-16 Etm Engineering Technologie Marketing Gmbh Air duct for the intake tract of an internal combustion engine
US10731610B2 (en) 2015-08-12 2020-08-04 ETM Engineering Technologies Marketing GmbH Air pipe for the intake tract of an internal combustion engine
DE102016221105A1 (en) 2016-10-26 2018-04-26 Etm Engineering Technologie Marketing Gmbh Air duct for the intake tract of an internal combustion engine
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DE102016221105B4 (en) 2016-10-26 2018-05-09 Etm Engineering Technologie Marketing Gmbh Air duct for the intake tract of an internal combustion engine

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