EP0989295A2 - Intake system for a combustion engine - Google Patents

Intake system for a combustion engine Download PDF

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Publication number
EP0989295A2
EP0989295A2 EP99118493A EP99118493A EP0989295A2 EP 0989295 A2 EP0989295 A2 EP 0989295A2 EP 99118493 A EP99118493 A EP 99118493A EP 99118493 A EP99118493 A EP 99118493A EP 0989295 A2 EP0989295 A2 EP 0989295A2
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EP
European Patent Office
Prior art keywords
resonator
suction line
housing
suction
resonator housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP99118493A
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German (de)
French (fr)
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EP0989295A3 (en
Inventor
Axel Gössling
Rainer Montigny
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
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Mannesmann VDO AG
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Filing date
Publication date
Application filed by Mannesmann VDO AG filed Critical Mannesmann VDO AG
Publication of EP0989295A2 publication Critical patent/EP0989295A2/en
Publication of EP0989295A3 publication Critical patent/EP0989295A3/en
Withdrawn legal-status Critical Current

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    • 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
    • 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

Definitions

  • the invention relates to an intake system for an internal combustion engine, in particular an internal combustion engine driving a vehicle, having a resonator, according to the features of the preamble of claim 1.
  • DE 42 15 416 A1 a suction system is known in which between one Air filter and an injector of the internal combustion engine an air supply line is arranged.
  • the internal combustion engine is via this air supply line or their injection device fresh air supplied, the fresh air supplied is metered by means of a throttle valve.
  • the Fresh air is drawn in by the internal combustion engine, causing vibrations the air column in the air supply line, the uncomfortable and annoying Cause suction noise. Therefore, DE 42 15 416 A1 proposes Air supply line a resonator, which is designed here as a Helmholtz resonator is to be attached. These are both on the Helmholtz resonator a flange is also arranged on the air supply line, via which the two Components are interconnected. This can be the annoying Eliminate suction noise as far as possible, whereas this is described in DE 42 15 416 A1 described suction system has the disadvantage that it with respect to the Variety of parts and the assembly effort is in need of improvement.
  • the invention is therefore based on the object that described above To improve the suction system so that the assembly effort is reduced becomes. Another aspect of the task is the fact that for the Suction system gives a pleasing appearance, which makes the suction system lighter in the available space in the outside area of the internal combustion engine is to be accommodated.
  • the resonator is designed as a resonator module, wherein the resonator module from a resonator housing and a resonator housing cover exists and the resonator housing and the resonator housing cover be inextricably linked.
  • the resonator module there is only a single part left in the suction system assemble.
  • the air filter above which fresh air for combustion in the internal combustion engine is sucked in, attached and a connection on the output side to the injector of the internal combustion engine.
  • the resonator module and the air filter respectively whose air filter housing form a single component.
  • the resonator housing and the resonator housing cover be inextricably linked, as a resonator module is available, which is constructive to the respective type of Internal combustion engine in which it is to be used can and thus reduces the variety of parts during assembly.
  • the resonator module can be prefabricated and as a finished Component for example in the production of the internal combustion engine or also is available when installing the internal combustion engine in a vehicle. Furthermore, leaks are effectively avoided, so that sealants can be omitted.
  • suction instructions are provided in the resonator housing provided, which is at least partially formed by the resonator housing is. This further increases the integration of components of the resonator module, so that automatically with the installation of the resonator module not only the resonator is available in itself, but also the connection between the air filter and the injector of the internal combustion engine. This means that the available space is also compact Well used resonator module.
  • the suction line cover also becomes unsolvable connected to the resonator housing.
  • the suction line cover also becomes unsolvable connected to the resonator housing.
  • the suction line cover Just like the inseparable connection of the resonator housing cover with the resonator housing has permanent connection of the suction line cover to the resonator housing the advantage that there is inevitably a tight connection between those involved Components is made, so that leaks and associated therewith Shifts in the resonance frequency can be effectively prevented.
  • an inseparable connection (such as gluing) easier and safer to establish than, for example, a connection via Flanges with a gasket in between, the flanges together be screwed.
  • the assembly effort is not only reduced, but also automated can what especially in a series production of resonator modules is particularly effective and inexpensive.
  • the suction line cover has an air guiding section on the suction line with the volume of the resonator housing connects. This means that not only the suction line is inside the resonator housing, but also the resonator, which makes the handling of the resonator module is further improved during installation.
  • the suction line cover with the air guide section formed as a component which also reduces the variety of components becomes. This is again in the manufacture of the resonator module including all its plastic components of particular advantage, where this will be discussed in the following.
  • the suction system is characterized by its Manufactured from plastic, in particular a heat-resistant plastic.
  • a heat-resistant plastic that also with the appropriate heat in the Engine compartment retains its shape is therefore necessary, because when operating the Internal combustion engine, particularly in an engine compartment of a vehicle is housed, high temperatures prevail that do not cause deformation of the resonator module.
  • Heat-resistant is understood to mean that the resonator module made of plastic also at low temperatures (which prevail in winter, for example) is exposed to after commissioning the internal combustion engine, the temperatures in the engine compartment increase sharply. So these temperature fluctuations must not become one Deform the geometry of the resonator module.
  • the manufacture of the resonator module is Suction system characterized by a shape and at least two cores Manufacture of the resonator housing by casting or injection molding Plastic.
  • the shape forms the outer contours of the resonator housing, whereby in this form two cores are inserted, one core being the resonator volume (thus the inner contours of the resonator housing) and the open section of the suction line, with the manufacture of the resonator housing is produced simultaneously, forms and the second core the inner contours a tubular piece of the suction line within the resonator housing forms, the outer contours of the tubular piece from the first Core are formed.
  • the resonator housing is open simple way using a shape and at least two cores in the Casting or injection molding process can be made of plastic and without problems to core and take out of shape.
  • the suction line cover is also covered made a mold and a core, which makes the suction line cover in one work step can be produced as a one-piece component, that at the same time takes on the task of covering the open area of the suction line and at the same time the connection between the suction line and the resonator volume and the resonator housing.
  • means for changing the resonator volume are in particular a flap or a slide, and an actuator for setting the means for changing the resonator volume in the resonator module integrated.
  • the actuator can, for example, depending on a Parameters of the internal combustion engine, in particular the speed, of one Control direction can be controlled.
  • the actuator for setting the means for change of the resonator volume is either inside the resonator housing for example attached to the suction line cover or also arranged outside the resonator module.
  • An arrangement within the The advantage of resonator modules is that there are no bushings through the walls of the resonator module are required, which also causes sealing problems here be effectively avoided.
  • a resonator module 1 is a three-dimensional view in FIG Suction system of an internal combustion engine shown.
  • the resonator module 1 exists from a resonator housing 2, at one end of the resonator housing 2, a flange 3 is provided with which the resonator module is connected to a Air filter for fresh air intake is connected.
  • a further flange 4 is provided, the Flange 4 via a pipe piece 5, in particular tubular, with another Flange 6 is attached to the resonator housing 2.
  • the arrangement and the alignment of the flanges 3, 4 and 6 is only exemplary and is shown in Dependence of the installation space and the position of the air filter, which on the Flange 3 is connected, and depending on the position of the injector the internal combustion engine, which is connected to the flange 4, chosen.
  • the resonator housing 2 also has fastening means which are illustrated by way of example 7 with which the resonator module 1 are fixed in place can.
  • the resonator housing 2 is not yet completely closed, but rather has Connecting edges 8, more precisely a completely circumferential connecting edge 8, on with the connecting edge 8 the contours of a resonator housing cover or its side parts correspond.
  • a suction line 9 is arranged inside the resonator housing 2, wherein this suction line 9 at least partially simultaneously with the manufacture of the resonator housing 2 is ordered.
  • This suction line 9 and the resonator housing 2 thus form a one-piece component.
  • the suction line 9 is on their the entire extent is not yet closed, but in the area of a connecting edge 10 or of connecting surfaces 11 and 12 still open. Since the suction line 9 is approximately tubular, it instructs one end, especially at the end, which is in the direction of the flange 3 is aligned, a tubular piece 13, the tubular The length of piece 13 is straight, i.e. approximately as a cylindrical line, is trained.
  • This shown in Figure 1, or correspondingly similar configurations have the advantage that the resonator housing 2 by means of a shape and at least two cores can be produced.
  • the shape describes the outer contours of the resonator housing 2, while one core is the inner volume of the resonator housing 2, the open part of the suction line 9, the connecting edge 10 and the connecting surfaces 11 and 12 and the surface of the tubular piece 13 describes.
  • the second core forms the inner core of the tubular piece 13, so that after casting or Injection molding a coring and a removal of the finished resonator housing 2 is made possible from the mold.
  • FIG. 2 shows a suction line cover 14 which corresponds to that in FIG. 1 shown open area of the suction line 9 covers.
  • the suction line cover 14 consists of a part-circular cover 15 covering the open area covers the suction line 9 in the sense of an arcuate pipeline.
  • the suction line cover 14 has connecting surfaces 16 on, which correspond to the connecting surfaces 11 and 12 of the resonator housing 2.
  • the suction line cover 14 also takes on the task a connection from the now more closed suction line 9 to the volume to produce the resonator housing 2.
  • an air guide section 18 as a separate component can be placed, the air guide section 18 being particularly advantageous Production of the suction line cover 14 is already formed or with this is inextricably linked.
  • the air guide section 18 has an opening 19 on, which is directed in the direction of the volume of the resonator housing 2.
  • a further opening 20, which is only hinted at here, provides a connection between the air guide section 18 and the suction line 9, in particular in the vicinity of the Flange 6, forth.
  • the resonator housing 2 is shown in FIG Resonator housing cover 21 on the resonator housing 2 according to the Connection edges 8 placed and also by gluing, welding or the like is sealingly connected to the resonator housing 2.
  • the ready-to-install resonator module 1 is available and can be Flanges 3 and 4 with the air filter and the injector of the internal combustion engine get connected.

Abstract

The suction system has a resonator constructed as a module (1) consisting of a housing (2) and cover which are inseparably interconnected. A suction line (9) is provided in the housing and is formed at least partially by it. That part of the suction line which is not formed by the resonator housing is covered by a suction line cover which is inseparably connected to the housing. The suction line cover has a guiding section which connects the suction line to the volume of the resonator housing.

Description

Die Erfindung betrifft eine Sauganlage für eine Brennkraftmaschine, insbesondere eine ein Fahrzeug antreibende Brennkraftmaschine, mit einem Resonator, entsprechend den Merkmalen des Oberbegriffes des Patentanspruches 1.The invention relates to an intake system for an internal combustion engine, in particular an internal combustion engine driving a vehicle, having a resonator, according to the features of the preamble of claim 1.

Aus der DE 42 15 416 A1 ist eine Sauganlage bekannt, bei der zwischen einem Luftfilter und einer Einspritzvorrichtung der Brennkraftmaschine eine Luftzuführungsleitung angeordnet ist. Über diese Luftzuführungsleitung wird der Brennkraftmaschine beziehungsweise deren Einspritzvorrichtung Frischluft zugeführt, wobei die zugeführte Frischluft mittels einer Drosselklappe dosiert wird. Bei der Ansaugung von Frischluft durch die Brennkraftmaschine kommt es zu Schwingungen der Luftsäule in der Luftzuführleitung, die unangenehme und störende Ansauggeräusche verursachen. Daher schlägt die DE 42 15 416 A1 vor, an der Luftzuführungsleitung einen Resonator, der hier als Helmholtz-Resonator ausgebildet ist, anzubringen. Dazu sind sowohl an dem Helmholtz-Resonator als auch an der Luftzuführungsleitung ein Flansch angeordnet, über die die beiden Bauteile miteinander verbunden werden. Damit lassen sich zwar die störenden Ansauggeräusche weitest gehend eliminieren, wohingegen diese in der DE 42 15 416 A1 beschriebene Sauganlage den Nachteil hat, daß sie in bezug auf die Teilevielfalt und den Montageaufwand verbesserungsbedürftig ist.From DE 42 15 416 A1 a suction system is known in which between one Air filter and an injector of the internal combustion engine an air supply line is arranged. The internal combustion engine is via this air supply line or their injection device fresh air supplied, the fresh air supplied is metered by means of a throttle valve. In the Fresh air is drawn in by the internal combustion engine, causing vibrations the air column in the air supply line, the uncomfortable and annoying Cause suction noise. Therefore, DE 42 15 416 A1 proposes Air supply line a resonator, which is designed here as a Helmholtz resonator is to be attached. These are both on the Helmholtz resonator a flange is also arranged on the air supply line, via which the two Components are interconnected. This can be the annoying Eliminate suction noise as far as possible, whereas this is described in DE 42 15 416 A1 described suction system has the disadvantage that it with respect to the Variety of parts and the assembly effort is in need of improvement.

Der Erfindung liegt daher die Aufgabe zugrunde, die eingangs beschriebene Sauganlage dahingehend zu verbessern, daß der Montageaufwand verringert wird. Ein weiterer Aspekt der Aufgabe ist darin zu sehen, daß sich für die Sauganlage ein gefälliges Erscheinungsbild ergibt, wodurch die Sauganlage leichter in den zur Verfügung stehenden Bauraum im Außenbereich der Brennkraftmaschine unterzubringen ist.The invention is therefore based on the object that described above To improve the suction system so that the assembly effort is reduced becomes. Another aspect of the task is the fact that for the Suction system gives a pleasing appearance, which makes the suction system lighter in the available space in the outside area of the internal combustion engine is to be accommodated.

Diese Aufgabe wird durch die Merkmale des Patentanspruches 1 gelöst.This object is solved by the features of claim 1.

Erfindungsgemäß ist der Resonator als Resonatormodul ausgebildet, wobei das Resonatormodul aus einem Resonatorgehäuse und einem Resonatorgehäusedeckel besteht und das Resonatorgehäuse und der Resonatorgehäusedeckel unlösbar miteinander verbunden werden. Nach Herstellung des Resonatormodules liegt nur noch ein einziges Teil vor, daß in der Sauganlage zu montieren ist. Zu diesem Zweck wird beispielsweise an dem Eingang des Resonatormoduls der Luftfilter, über den Frischluft zur Verbrennung in der Brennkraftmaschine angesaugt wird, befestigt und ausgangsseitig eine Verbindung zu der Einspritzvorrichtung der Brennkraftmaschine hergestellt. An der Stelle ist es auch denkbar, daß zum Beispiel das Resonatormodul und der Luftfilter beziehungsweise dessen Luftfiltergehäuse ein einziges Bauteil bilden.According to the invention, the resonator is designed as a resonator module, wherein the resonator module from a resonator housing and a resonator housing cover exists and the resonator housing and the resonator housing cover be inextricably linked. After manufacturing the resonator module there is only a single part left in the suction system assemble. For this purpose, for example, at the input of the resonator module the air filter, above which fresh air for combustion in the internal combustion engine is sucked in, attached and a connection on the output side to the injector of the internal combustion engine. At the point it is also conceivable that, for example, the resonator module and the air filter, respectively whose air filter housing form a single component.

Weiterhin ist es von Vorteil, daß das Resonatorgehäuse und der Resonatorgehäusedeckel unlösbar miteinander verbunden werden, da somit ein Resonatormodul zur Verfügung steht, welches konstruktiv auf den jeweiligen Typ der Brennkraftmaschine, bei dem es eingesetzt werden soll, abgestimmt werden kann und sich somit die Teilevielfalt bei der Montage verringert. Dies bedeutet, daß das Resonatormodul schon vorgefertigt werden kann und als fertiges Bauteil zum Beispiel bei der Produktion der Brennkraftmaschine oder auch beim Einbau der Brennkraftmaschine in ein Fahrzeug zur Verfügung steht. Weiterhin werden Undichtigkeiten wirksam vermieden, so daß auch Dichtmittel entfallen können.It is also advantageous that the resonator housing and the resonator housing cover be inextricably linked, as a resonator module is available, which is constructive to the respective type of Internal combustion engine in which it is to be used can and thus reduces the variety of parts during assembly. This means, that the resonator module can be prefabricated and as a finished Component for example in the production of the internal combustion engine or also is available when installing the internal combustion engine in a vehicle. Furthermore, leaks are effectively avoided, so that sealants can be omitted.

In Weiterbildung der Erfindung ist in dem Resonatorgehäuse eine Sauganleitung vorgesehen, die zumindest teilweise von dem Resonatorgehäuse gebildet ist. Damit wird die Integration von Bauteilen des Resonatormoduls weiter erhöht, so daß automatisch mit Einbau des Resonatormodules nicht nur der Resonator an sich zur Verfügung steht, sondern auch die Verbindung zwischen dem Luftfilter und der Einspritzvorrichtung der Brennkraftmaschine gegeben ist. Dadurch wird auch der zur Verfügung stehende Bauraum durch das kompakte Resonatormodul bestens ausgenutzt.In a further development of the invention, suction instructions are provided in the resonator housing provided, which is at least partially formed by the resonator housing is. This further increases the integration of components of the resonator module, so that automatically with the installation of the resonator module not only the resonator is available in itself, but also the connection between the air filter and the injector of the internal combustion engine. This means that the available space is also compact Well used resonator module.

In Weiterbildung der Erfindung ist derjenige Teil der Saugleitung, der nicht von dem Resonatorgehäuse gebildet ist, von einer Saugleitungsabdeckung abgedeckt. Dies hat insbesondere Vorteile bei der Herstellung der Resonatormodules aus Kunststoff, worauf an späterer Stelle noch eingegangen wird.In a development of the invention, that part of the suction line that is not of the resonator housing is formed, covered by a suction line cover. This has particular advantages in the manufacture of the resonator modules made of plastic, which will be discussed later.

In Weiterbildung der Erfindung wird auch die Saugleitungsabdeckung unlösbar mit dem Resonatorgehäuse verbunden. Genauso wie bei der unlösbaren Verbindung des Resonatorgehäusedeckels mit dem Resonatorgehäuse hat die unlösbare Verbindung der Saugleitungsabdeckung mit dem Resonatorgehäuse den Vorteil, daß unweigerlich eine dichte Verbindung zwischen den beteiligten Bauteilen hergestellt wird, so daß damit Undichtigkeiten und damit verbunden Verschiebungen in der Resonanzfrequenz wirksam unterbunden werden. Außerdem ist eine solche unlösbare Verbindung (wie zum Beispiel Verkleben) einfacher und sicherer herzustellen, als zum Beispiel eine Verbindung über Flansche mit einer dazwischen gelegten Dichtung, wobei die Flansche miteinander verschraubt werden. Auch hier versteht es sich von selbst, daß dadurch der Montageaufwand nicht nur verringert wird, sondern auch automatisiert werden kann, was insbesondere bei einer Serienherstellung von Resonatormodulen besonders effektiv und kostengünstig ist.In a further development of the invention, the suction line cover also becomes unsolvable connected to the resonator housing. Just like the inseparable connection of the resonator housing cover with the resonator housing has permanent connection of the suction line cover to the resonator housing the advantage that there is inevitably a tight connection between those involved Components is made, so that leaks and associated therewith Shifts in the resonance frequency can be effectively prevented. Moreover is such an inseparable connection (such as gluing) easier and safer to establish than, for example, a connection via Flanges with a gasket in between, the flanges together be screwed. Here, too, it goes without saying that the assembly effort is not only reduced, but also automated can what especially in a series production of resonator modules is particularly effective and inexpensive.

In Weiterbildung der Erfindung weist die Saugleitungsabdeckung einen Luftleitabschnitt auf, der die Saugleitung mit dem Volumen des Resonatorgehäuses verbindet. Damit ist innerhalb des Resonatorgehäuses nicht nur die Saugleitung, sondern auch der Resonator realisiert, wodurch das Handling des Resonatormodules beim Einbau weiter verbessert wird.In a further development of the invention, the suction line cover has an air guiding section on the suction line with the volume of the resonator housing connects. This means that not only the suction line is inside the resonator housing, but also the resonator, which makes the handling of the resonator module is further improved during installation.

In Weiterbildung der Erfindung ist die Saugleitungabdeckung mit dem Luftleitabschnitt als ein Bauteil ausgebildet, wodurch ebenfalls die Bauteilevielfalt reduziert wird. Auch dies ist wieder bei der Herstellung des Resonatormodules einschließlich aller seiner Bauteile aus Kunststoff von besonderem Vorteil, wobei im folgenden darauf eingegangen wird.In a further development of the invention, the suction line cover with the air guide section formed as a component, which also reduces the variety of components becomes. This is again in the manufacture of the resonator module including all its plastic components of particular advantage, where this will be discussed in the following.

In Weiterbildung der Erfindung ist die Sauganlage gekennzeichnet durch ihre Herstellung aus Kunststoff, insbesondere einen wärmebeständigen Kunststoff. Ein wärmebeständiger Kunststoff, der auch bei der entsprechenden Wärme im Motorraum seine Form behält, ist daher erforderlich, da beim Betrieb der Brennkraftmaschine, die insbesondere in einem Motorraum eines Fahrzeuges untergebracht ist, hohe Temperaturen herrschen, die nicht zu einer Verformung des Resonatormodules führen dürfen. Unter wärmebeständig ist dabei zu verstehen, daß das aus Kunststoff hergestellte Resonatormodul auch tiefen Temperaturen (die zum Beispiel im Winter herrschen) ausgesetzt ist, wobei sich nach Inbetriebnahme der Brennkraftmaschine die Temperaturen im Motorraum stark erhöhen. Auch diese Temperaturschwankungen dürfen also nicht zu einer Verformung der Geometrien des Resonatormodules führen.In a further development of the invention, the suction system is characterized by its Manufactured from plastic, in particular a heat-resistant plastic. A heat-resistant plastic that also with the appropriate heat in the Engine compartment retains its shape is therefore necessary, because when operating the Internal combustion engine, particularly in an engine compartment of a vehicle is housed, high temperatures prevail that do not cause deformation of the resonator module. Heat-resistant is understood to mean that the resonator module made of plastic also at low temperatures (which prevail in winter, for example) is exposed to after commissioning the internal combustion engine, the temperatures in the engine compartment increase sharply. So these temperature fluctuations must not become one Deform the geometry of the resonator module.

In Weiterbildung der Erfindung ist die Herstellung des Resonatormoduls der Sauganlage gekennzeichnet durch eine Form und zumindest zwei Kerne zur Herstellung des Resonatorgehäuses im Gieß- oder Spritzgußverfahren aus Kunststoff. Die Form bildet die äußeren Konturen des Resonatorgehäuses, wobei in diese Form zwei Kerne eingelegt werden, wobei ein Kern das Resonatorvolumen (damit also die inneren Konturen des Resonatorgehäuses) und den offenen Abschnitt der Saugleitung, die mit Herstellung des Resonatorgehäuses gleichzeitig hergestellt wird, bildet und der zweite Kern die inneren Konturen eines rohrförmigen Stückes der Saugleitung innerhalb des Resonatorgehäuses bildet, wobei die äußeren Konturen des rohrförmigen Stückes von dem ersten Kern gebildet sind. Durch diese Ausgestaltung ist das Resonatorgehäuse auf einfache Art und Weise mittels einer Form und zumindest zweier Kerne im Gieß- oder Spritzgußverfahren aus Kunststoff herstellbar und ohne Probleme zu entkernen und aus der Form zu nehmen.In a development of the invention, the manufacture of the resonator module is Suction system characterized by a shape and at least two cores Manufacture of the resonator housing by casting or injection molding Plastic. The shape forms the outer contours of the resonator housing, whereby in this form two cores are inserted, one core being the resonator volume (thus the inner contours of the resonator housing) and the open section of the suction line, with the manufacture of the resonator housing is produced simultaneously, forms and the second core the inner contours a tubular piece of the suction line within the resonator housing forms, the outer contours of the tubular piece from the first Core are formed. With this configuration, the resonator housing is open simple way using a shape and at least two cores in the Casting or injection molding process can be made of plastic and without problems to core and take out of shape.

In Weiterbildung der Erfindung wird auch die Saugleitungsabdeckung durch eine Form und einen Kern hergestellt, wodurch die Saugleitungsabdeckung in einem Arbeitsschritt als einstückiges Bauteil herstellbar ist, daß dann gleichzeitig die Aufgabe übernimmt, den offenen Bereich der Saugleitung abzudecken und gleichzeitig die Verbindung zwischen der Saugleitung und dem Resonatorvolumen und des Resonatorgehäuses herzustellen.In a further development of the invention, the suction line cover is also covered made a mold and a core, which makes the suction line cover in one work step can be produced as a one-piece component, that at the same time takes on the task of covering the open area of the suction line and at the same time the connection between the suction line and the resonator volume and the resonator housing.

In Weiterbildung der Erfindung sind Mittel zur Veränderung des Resonatorvolumens, insbesondere eine Klappe oder ein Schieber, sowie ein Stellantrieb zum Einstellen der Mittel zur Veränderung des Resonatorvolumens in dem Resonatormodul integriert. Der Stellantrieb kann zum Beispiel in Abhängigkeit eines Parameters der Brennkraftmaschine, insbesondere der Drehzahl, von einer Steuerrichtung angesteuert werden. Durch den Einsatz der Mittel zur Veränderung des Resonatorvolumens ist es möglich, die Ansauggeräusche nicht nur bei einer bestimmten Frequenz oder einem bestimmten schmalen Frequenzbereich, sondern auch über einen größeren Frequenzbereich sowie drehzahlabhängig zu unterdrücken beziehungsweise zu eliminieren. Als Mittel zur Veränderung des Resonatorvolumens kommen beispielsweise Klappen oder Schieber in Betracht, die am Eingang oder am Ende des Luftleitungsabschnittes oder dazwischen eingesetzt sind. Der Stellantrieb zum Einstellen der Mittel zur Veränderung des Resonatorvolumens ist entweder innerhalb des Resonatorgehäuses zum Beispiel an der Saugleitungsabdeckung befestigt oder aber auch außerhalb des Resonatormodules angeordnet. Eine Anordnung innerhalb des Resonatormodules hat den Vorteil, daß keine Durchführungen durch die Wände des Resonatormodules erforderlich sind, wodurch auch hier Abdichtungsprobleme wirksam vermieden werden.In a further development of the invention, means for changing the resonator volume are in particular a flap or a slide, and an actuator for setting the means for changing the resonator volume in the resonator module integrated. The actuator can, for example, depending on a Parameters of the internal combustion engine, in particular the speed, of one Control direction can be controlled. By using the means to change of the resonator volume, it is possible not only the intake noise at a certain frequency or a certain narrow frequency range, but also over a larger frequency range and depending on the speed to suppress or eliminate. As a means of change of the resonator volume come, for example, flaps or slides considered at the entrance or at the end of the air duct section or are inserted in between. The actuator for setting the means for change of the resonator volume is either inside the resonator housing for example attached to the suction line cover or also arranged outside the resonator module. An arrangement within the The advantage of resonator modules is that there are no bushings through the walls of the resonator module are required, which also causes sealing problems here be effectively avoided.

Eine beispielhafte Ausgestaltung eines erfindungsgemäßen Resonatormodules für eine Sauganlage für eine Brennkraftmaschine ist im folgenden beschrieben und anhand der Figuren erläutert. Die in den Figuren gezeigten geometrischen Ausgestaltungen sind lediglich beispielhaft und können in bezug auf die Charakteristik der Brennkraftmaschine sowie in bezug auf den zur Verfügung stehenden Bauraum variiert beziehungsweise angepaßt werden, ohne den damit zu erzielenden Effekt zu vernachlässigen und den Erfindungsgedanken aufzugeben.An exemplary embodiment of a resonator module according to the invention for a suction system for an internal combustion engine is described below and explained using the figures. The geometric shown in the figures Refinements are only exemplary and can be in relation to the characteristic the internal combustion engine and in relation to the available Installation space can be varied or adapted without the neglect the effect to be achieved and give up the idea of the invention.

Es zeigen:

  • Figur 1: ein Resonatormodul im noch nicht zusammengebauten Zustand,
  • Figur 2: eine Saugleitungsabdeckung und
  • Figur 3: ein Resonatorgehäusedeckel.
    • Show it:
  • FIG. 1: a resonator module in the not yet assembled state,
  • Figure 2: a suction line cover and
  • Figure 3: a resonator housing cover.

    • In Figur 1 ist in dreidimensionaler Ansicht ein Resonatormodul 1 einer Sauganlage einer Brennkraftmaschine gezeigt. Das Resonatormodul 1 besteht aus einem Resonatorgehäuse 2, wobei an dem einen Ende des Resonatorgehäuses 2 ein Flansch 3 vorgesehen ist, mit dem das Resonatormodul an einen Luftfilter zur Frischluftansaugung angeschlossen wird. An einem anderen Ende des Resonatorgehäuses 2 ist ein weiterer Flansch 4 vorgesehen, wobei der Flansch 4 über ein insbesondere rohrförmiges Leitungsstück 5 mit einem weiteren Flansch 6 an dem Resonatorgehäuse 2 befestigt ist. Die Anordnung und die Ausrichtung der Flansche 3, 4 und 6 ist lediglich beispielhaft und wird in Abhängigkeit des Einbauraumes und der Lage des Luftfilters, der an dem Flansch 3 angeschlossen wird, und in Abhängigkeit der Lage der Einspritzvorrichtung der Brennkraftmaschine, die an dem Flansch 4 angeschlossen wird, gewählt.A resonator module 1 is a three-dimensional view in FIG Suction system of an internal combustion engine shown. The resonator module 1 exists from a resonator housing 2, at one end of the resonator housing 2, a flange 3 is provided with which the resonator module is connected to a Air filter for fresh air intake is connected. At another end of the resonator housing 2, a further flange 4 is provided, the Flange 4 via a pipe piece 5, in particular tubular, with another Flange 6 is attached to the resonator housing 2. The arrangement and the alignment of the flanges 3, 4 and 6 is only exemplary and is shown in Dependence of the installation space and the position of the air filter, which on the Flange 3 is connected, and depending on the position of the injector the internal combustion engine, which is connected to the flange 4, chosen.

    Weiterhin weist das Resonatorgehäuse 2 noch beispielhaft dargestellte Befestigungsmittel 7 auf, mit denen das Resonatormodul 1 ortsfest befestigt werden kann.Furthermore, the resonator housing 2 also has fastening means which are illustrated by way of example 7 with which the resonator module 1 are fixed in place can.

    Das Resonatorgehäuse 2 ist noch nicht komplett verschlossen, sondern weist Verbindungskanten 8, genauer eine komplett umlaufende Verbindungskante 8, auf wobei die Verbindungskante 8 den Konturen eines Resonatorgehäusedeckels beziehungsweise dessen Seitenteile entsprechen.The resonator housing 2 is not yet completely closed, but rather has Connecting edges 8, more precisely a completely circumferential connecting edge 8, on with the connecting edge 8 the contours of a resonator housing cover or its side parts correspond.

    Innerhalb des Resonatorgehäuses 2 ist eine Saugleitung 9 angeordnet, wobei diese Saugleitung 9 zumindest teilweise gleichzeitig mit Herstellung des Resonatorgehäuses 2 herbestellt wird. Diese Saugleitung 9 und das Resonatorgehäuse 2 bilden also ein einstückiges Bauteil. Die Saugleitung 9 ist über ihre gesamte Erstreckung noch nicht verschlossen, sondern im Bereich einer Verbindungskante 10 beziehungsweise von Verbindungsflächen 11 und 12 noch offen. Da die Saugleitung 9 in etwa rohrförmig ausgestaltet ist, weist sie an dem einen Ende, insbesondere an dem Ende, welches in Richtung des Flansches 3 ausgerichtet ist, ein rohrförmiges Stück 13 auf, wobei das rohrförmige Stück 13 in seiner Erstreckung gerade, also in etwa als zylinderförmige Leitung, ausgebildet ist. Diese in Figur 1 gezeigte, oder entsprechend ähnliche Ausgestaltungen haben den Vorteil, daß das Resonatorgehäuse 2 mittels einer Form und zumindest zweier Kerne herstellbar ist. Die Form beschreibt die Außenkonturen des Resonatorgehäuses 2, während der eine Kern das innere Volumen des Resonatorgehäuses 2, den offenen Teil der Saugleitung 9, die Verbindungskante 10 und die Verbindungsflächen 11 und 12 sowie die Oberfläche des rohrförmigen Stückes 13 beschreibt. Der zweite Kern bildet den Innenkern des rohrförmigen Stückes 13, so daß nach dem Gießen beziehungsweise dem Spritzgießen eine Entkernung und eine Entnahme des fertigen Resonatorgehäuse 2 aus der Form ermöglicht wird.A suction line 9 is arranged inside the resonator housing 2, wherein this suction line 9 at least partially simultaneously with the manufacture of the resonator housing 2 is ordered. This suction line 9 and the resonator housing 2 thus form a one-piece component. The suction line 9 is on their the entire extent is not yet closed, but in the area of a connecting edge 10 or of connecting surfaces 11 and 12 still open. Since the suction line 9 is approximately tubular, it instructs one end, especially at the end, which is in the direction of the flange 3 is aligned, a tubular piece 13, the tubular The length of piece 13 is straight, i.e. approximately as a cylindrical line, is trained. This shown in Figure 1, or correspondingly similar configurations have the advantage that the resonator housing 2 by means of a shape and at least two cores can be produced. The shape describes the outer contours of the resonator housing 2, while one core is the inner volume of the resonator housing 2, the open part of the suction line 9, the connecting edge 10 and the connecting surfaces 11 and 12 and the surface of the tubular piece 13 describes. The second core forms the inner core of the tubular piece 13, so that after casting or Injection molding a coring and a removal of the finished resonator housing 2 is made possible from the mold.

    In Figur 2 ist eine Saugleitungsabdeckung 14 gezeigt, welche den in Figur 1 gezeigten offenen Bereich der Saugleitung 9 abdeckt. Die Saugleitungsabdeckung 14 besteht aus einer teilkreisförmigen Abdeckung 15, die den offenen Bereich der Saugleitung 9 im Sinne einer bogenförmigen Rohrleitung abdeckt. Darüber hinaus weist die Saugleitungsabdeckung 14 Verbindungsflächen 16 auf, die den Verbindungsflächen 11 und 12 des Resonatorgehäuses 2 entsprechen. Ebenso sind an beiden Enden der Saugleitungsabdeckung 14 Verbindungskanten 17 vorhanden, die einerseits der Verbindungskante 10 des rohrförmigen Stückes 13 des Resonatorgehäuses 2 entspricht und andererseits nach der Montage der Saugleitungsabdeckung 14 an einer Innenwand des Resonatorgehäuses 2 anliegt. Nach dem Einsetzen der Saugleitungsabdeckung 14 und der unlösbaren Verbindung der einander zugewandten Verbindungskanten beziehungsweise Verbindungsflächen wird die Saugleitung 9 in ihrem bisherigen offenen Bereich verschlossen. Die unlösbare Verbindung erfolgt beispielsweise mittels Verkleben, Verschweißen oder dergleichen.FIG. 2 shows a suction line cover 14 which corresponds to that in FIG. 1 shown open area of the suction line 9 covers. The suction line cover 14 consists of a part-circular cover 15 covering the open area covers the suction line 9 in the sense of an arcuate pipeline. In addition, the suction line cover 14 has connecting surfaces 16 on, which correspond to the connecting surfaces 11 and 12 of the resonator housing 2. There are also 14 connecting edges at both ends of the suction line cover 17 available, the one hand the connecting edge 10 of the tubular Piece 13 of the resonator housing 2 corresponds and on the other hand after mounting the suction line cover 14 on an inner wall of the resonator housing 2 is present. After inserting the suction line cover 14 and the inseparable connection of the mutually facing connection edges or connecting surfaces, the suction line 9 in its closed previous open area. The permanent connection is made for example by means of gluing, welding or the like.

    Darüber hinaus übernimmt die Saugleitungsabdeckung 14 auch die Aufgabe, eine Verbindung von der nun mehr geschlossenen Saugleitung 9 zu dem Volumen des Resonatorgehäuses 2 herzustellen. Zu diesem Zweck ist oberhalb der teilkreisförmigen Abdeckung 15 ein Luftleitabschnitt 18 als separates Bauteil aufsetzbar, wobei in besonders vorteihafterweise der Luftleitabschnitt 18 mit Herstellung der Saugleitungsabdeckung 14 schon angeformt ist oder mit diesem unlösbar verbunden wird. Der Luftleitabschnitt 18 weist eine Öffnung 19 auf, die in Richtung des Volumens des Resonatorgehäuses 2 gerichtet ist. Eine weitere Öffnung 20, die hier nur angedeutet ist, stellt eine Verbindung zwischen dem Luftleitabschnitt 18 und der Saugleitung 9, insbesondere in Nähe des Flansches 6, her.In addition, the suction line cover 14 also takes on the task a connection from the now more closed suction line 9 to the volume to produce the resonator housing 2. For this purpose it is above the partially circular cover 15 an air guide section 18 as a separate component can be placed, the air guide section 18 being particularly advantageous Production of the suction line cover 14 is already formed or with this is inextricably linked. The air guide section 18 has an opening 19 on, which is directed in the direction of the volume of the resonator housing 2. A further opening 20, which is only hinted at here, provides a connection between the air guide section 18 and the suction line 9, in particular in the vicinity of the Flange 6, forth.

    Nachdem die Saugleitungsabdeckung 14 unlösbar mit dem Resonatorgehäuse 2 verbunden worden ist, ist es noch erforderlich, daß Resonatorgehäuse 2 mit einem Resonatorgehäusedeckel dichtend zu verschließen.After the suction line cover 14 is inseparable from the resonator housing 2 has been connected, it is still necessary that resonator housing 2 with to seal a resonator housing cover.

    Zu diesem Zweck wird mit dem Resonatorgehäuse 2 ein in Figur 3 gezeigter Resonatorgehäusedeckel 21 auf das Resonatorgehäuse 2 entsprechend den Verbindungskanten 8 aufgesetzt und ebenfalls durch Verkleben, Verschweißen oder dergleichen dichtend mit dem Resonatorgehäuse 2 verbunden. Nach diesen Fertigungsschritten, die anhand der Figuren 1 bis 3 erläutert worden sind, steht das einbaufertige Resonatormodul 1 zur Verfügung und kann über die Flansche 3 und 4 mit dem Luftfilter und der Einspritzvorrichtung der Brennkraftmachine verbunden werden. For this purpose, the resonator housing 2 is shown in FIG Resonator housing cover 21 on the resonator housing 2 according to the Connection edges 8 placed and also by gluing, welding or the like is sealingly connected to the resonator housing 2. After these Manufacturing steps that have been explained with reference to Figures 1 to 3, the ready-to-install resonator module 1 is available and can be Flanges 3 and 4 with the air filter and the injector of the internal combustion engine get connected.

    Bezugszeichenliste:Reference symbol list:

    1.1.
    ResonatormodulResonator module
    2.2nd
    ResonatorgehäuseResonator housing
    3.3rd
    Flanschflange
    4.4th
    Flanschflange
    5.5.
    LeitungsstückPipe section
    6.6.
    Flanschflange
    7.7.
    BefestigungsmittelFasteners
    8.8th.
    VerbindungskanteConnecting edge
    9.9.
    SaugleitungSuction line
    10.10th
    VerbindungskanteConnecting edge
    11.11.
    VerbindungsflächeInterface
    12.12th
    VerbindungsflächeInterface
    13.13.
    rohrförmiges Leitungsstücktubular pipe section
    14.14.
    SaugleitungsabdeckungSuction line cover
    15.15.
    Teilkreisförmige AbdeckungPartial circular cover
    16.16.
    VerbindungsflächeInterface
    17.17th
    VerbindungskanteConnecting edge
    18.18th
    LuftleitabschnittAir guiding section
    19.19th
    Öffnungopening
    20.20th
    Öffnungopening
    21.21.
    ResonatorgehäusedeckelResonator housing cover

    Claims (10)

    Sauganlage für eine Brennkraftmaschine, insbesondere eine ein Fahrzeug antreibende Brennkraftmaschine, mit einem Resonator, dadurch gekennzeichnet, daß der Resonator als Resonatormodul (1) ausgebildet ist, wobei das Resonatormodul (1) aus einem Resonatorgehäuse (2) und einem Resonatorgehäusedeckel (21) besteht und das Resonatorgehäuse (2) und der Resonatorgehäusedeckel (21) unlösbar miteinander verbunden werden.Suction system for an internal combustion engine, in particular a vehicle driving internal combustion engine, with a resonator, characterized in that the resonator is designed as a resonator module (1), the resonator module (1) comprising a resonator housing (2) and a Resonator housing cover (21) and the resonator housing (2) and the resonator housing cover (21) are inextricably linked become. Sauganlage nach Anspruch 1, dadurch gekennzeichnet, daß in dem Resonatorgehäuse (2) eine Saugleitung (9) vorgesehen ist, die zumindest teilweise von dem Resonatorgehäuse (2) gebildet ist.Suction system according to claim 1, characterized in that a suction line (9) is provided in the resonator housing (2) which is at least partially formed by the resonator housing (2). Sauganlage nach Anspruch 2, dadurch gekennzeichnet, daß derjenige Teil der Saugleitung (9), der nicht von dem Resonatorgehäuse (2) gebildet ist, von einer Saugleitungsabdeckung (14) abgedeckt ist.Suction system according to claim 2, characterized in that that part of the suction line (9) which is not formed by the resonator housing (2) is covered by a suction line cover (14). Sauganlage nach Anspruch 3, dadurch gekennzeichnet, daß die Saugleitungsabdeckung (14) unlösbar mit dem Resonatorgehäuse (9) verbunden wird. Suction system according to claim 3, characterized in that the suction line cover (14) is permanently connected to the resonator housing (9). Sauganlage nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß die Saugleitungsabdeckung (14) einen Luftleitabschnitt (18) aufweist, der die Saugleitung (9) mit dem Volumen des Resonatorgehäuses (2) verbindet.Suction system according to claim 3 or 4, characterized in that the suction line cover (14) has an air guide section (18) which connects the suction line (9) to the volume of the resonator housing (2). Sauganlage nach Anspruch 5, dadurch gekennzeichnet, daß die Saugleitungsabdeckung (14) mit dem Luftleitabschnitt (18) als ein Bauteil ausgebildet ist.Suction system according to claim 5, characterized in that the suction line cover (14) with the air guiding section (18) is designed as one component. Sauganlage nach einem der vorhergehenden Ansprüche, gekennzeichnet durch ihre Herstellung aus Kunststoff, insbesondere einem wärmebeständigen Kunststoff.Suction system according to one of the preceding claims, characterized by its production from plastic, in particular a heat-resistant plastic. Sauganlage nach einem der vorhergehenden Ansprüche, gekennzeichnet durch eine Form und zumindest zwei Kerne zur Herstellung des Resonatorgehäuses (2) im Gieß- oder Spritzgußverfahren.Suction system according to one of the preceding claims, characterized by a mold and at least two cores for the production of the resonator housing (2) in the casting or injection molding process. Sauganlage nach einem der vorhergehenden Ansprüche, gekennzeichnet durch eine Form und einen Kern zur Herstellung der Saugleitungsabdeckung (14) im Gieß- oder Spritzgußverfahren.Suction system according to one of the preceding claims, characterized by a mold and a core for producing the suction line cover (14) in the casting or injection molding process. Sauganlage nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß Mittel zur Veränderung des Resonatorvolumens, insbesondere eine Klappe oder ein Schieber, sowie ein Stellantrieb zum Einstellen der Mittel zur Veränderung des Resonatorvolumens in und/oder an dem Resonatormodul (1) integriert sind.Suction system according to one of the preceding claims, characterized in that means for changing the resonator volume, in particular a flap or a slide, and an actuator for adjusting the means for changing the resonator volume are integrated in and / or on the resonator module (1).
    EP99118493A 1998-09-24 1999-09-18 Intake system for a combustion engine Withdrawn EP0989295A3 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE19843772A DE19843772A1 (en) 1998-09-24 1998-09-24 Suction system for an internal combustion engine
    DE19843772 1998-09-24

    Publications (2)

    Publication Number Publication Date
    EP0989295A2 true EP0989295A2 (en) 2000-03-29
    EP0989295A3 EP0989295A3 (en) 2000-11-15

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    ID=7882065

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP99118493A Withdrawn EP0989295A3 (en) 1998-09-24 1999-09-18 Intake system for a combustion engine

    Country Status (5)

    Country Link
    US (1) US6178940B1 (en)
    EP (1) EP0989295A3 (en)
    KR (1) KR20000023459A (en)
    BR (1) BR9904310A (en)
    DE (1) DE19843772A1 (en)

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    Also Published As

    Publication number Publication date
    BR9904310A (en) 2000-09-12
    US6178940B1 (en) 2001-01-30
    KR20000023459A (en) 2000-04-25
    EP0989295A3 (en) 2000-11-15
    DE19843772A1 (en) 2000-03-30

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