EP1043494A2 - Intake system for combustion engines - Google Patents

Intake system for combustion engines Download PDF

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Publication number
EP1043494A2
EP1043494A2 EP00102912A EP00102912A EP1043494A2 EP 1043494 A2 EP1043494 A2 EP 1043494A2 EP 00102912 A EP00102912 A EP 00102912A EP 00102912 A EP00102912 A EP 00102912A EP 1043494 A2 EP1043494 A2 EP 1043494A2
Authority
EP
European Patent Office
Prior art keywords
suction system
container
wall
inserts
walls
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Withdrawn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
EP00102912A
Other languages
German (de)
French (fr)
Other versions
EP1043494A3 (en
Inventor
Jürgen Kodweiss
Jürgen Schorn
Siegfried Mayer
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.)
Dr Ing HCF Porsche AG
Original Assignee
Dr Ing HCF Porsche AG
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 Dr Ing HCF Porsche AG filed Critical Dr Ing HCF Porsche AG
Publication of EP1043494A2 publication Critical patent/EP1043494A2/en
Publication of EP1043494A3 publication Critical patent/EP1043494A3/en
Withdrawn legal-status Critical Current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
    • F02M35/104—Intake manifolds
    • F02M35/116—Intake manifolds for engines with cylinders in V-arrangement or arranged oppositely relative to the main shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/22—Multi-cylinder engines with cylinders in V, fan, or star arrangement
    • 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
    • F02M35/10006—Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
    • F02M35/10026—Plenum chambers
    • F02M35/10052—Plenum chambers special shapes or arrangements of plenum chambers; Constructional details
    • 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
    • F02M35/1205—Flow throttling or guiding
    • F02M35/1216—Flow throttling or guiding by using a plurality of holes, slits, protrusions, perforations, ribs or the like; Surface structures; Turbulence generators
    • 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
    • F02M35/12—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

Definitions

  • the invention relates to a suction system for internal combustion engines according to the preamble of claim 1.
  • the main advantages achieved with the invention are the fact that with the Furnishing in the various forms of resonance peaks deliberately detuned or be disturbed, which leads to the reduction of the surface radiation and thus the Noise emission leads.
  • the walls with yes Through openings, intermediate parts with openings and inserts Absorbent material can include a significant reduction in noise or Operational quality improvement of the internal combustion engine achieved.
  • the Walls, intermediate parts and inserts easily realized and with little Space requirements can be integrated into the suction system.
  • a suction system 1 is arranged on an internal combustion engine 2, of which only Inlet ports 3, 4, 5 of a cylinder head 6 are indicated.
  • the internal combustion engine 2 has two opposing rows of cylinders, only the left of one Central row plane A-A extending cylinder bank 7 is shown; this applies analogously also for the suction system 1, which has a container 8 for the respective cylinder row 7 having.
  • Both containers are connected to one another via connecting lines 9 and 10 connected, the connecting line 9 being a distributor pipe and connecting line 10 is a resonance tube.
  • the container 8 is with individual tubular supply lines 11, 12, 13 to the Intake ports 3, 4, 5 of the cylinder head 6 connected.
  • In the cylinder head 6 are pro Cylinder more than two valves, preferably two intake valves and two exhaust valves housed for gas exchange control.
  • the container 8 has - seen from above - a rectangular basic shape that through shorter container walls 14, 15 and longer container walls 16, 17 are determined is. Together with lid-like container walls 18, 19, they form the container 8 and surround a container interior 20. Suitable as a material for the container Metal, plastic or the like
  • a device 21 for reducing the surface radiation occurring during operation of the internal combustion engine 2 is provided in the container interior 20. 1 and 2, the device 21 is formed by an inner wall 22 which is provided with a plurality or a plurality of through openings 23.
  • the through openings 23 can be designed in the manner of a perforation 24 and have different diameters - DI> DII and - vice versa .
  • the latter can be defined arithmetically and / or iteratively.
  • the inner wall 22 extends between the opposite longer container walls 16, 17; it is also conceivable that it connects the two shorter container walls 14, 15. There is the possibility that the inner wall 22 extends obliquely - angle ⁇ - to the container walls 16, 17 or the container walls 15, 16.
  • the inner wall 22 can take up the entire height HG of the container 8 and connect the lid-like container walls 18, 19 to one another.
  • FIG. 3 shows that the device 21 in the feed lines 11, 12, 13 forming first deposits 25, 26, 28 are used. It is local Pipe sections which surround the supply lines 11, 12, 13 on their inside, rest in an area leading away from the container 8 and with funnel-shaped Extensions 29, 30, 31 protrude into the container interior 20. Comparable second intermediate parts 32, 33 are provided in the connecting lines 9, 10. These intermediate parts 32, 33 extend with cylindrical extensions 34, 35 inside the container interior 20.
  • the perforations 24, which also have Intermediate parts 25, 26, 27 and 32, 33 are located directly on the inside of the Feed lines 11, 12, 13 or the connecting lines 9, 10. Is possible but also predominantly with the formation of an annular space ZR to be inserted into the corresponding lines without contact - Fig. 4 -.
  • the device 21 inserts 36, 37 from Absorbent material includes that in the container interior 20 to the opposite Container walls 14, 15 are provided.
  • the volume V I and V II of the inserts 36, 37 can be determined mathematically and / or iteratively, the inserts 36, 37 from Foam, ceramic or the like. Can be made.
  • Another embodiment is shown in Fig. 7.
  • inserts 38, 39 are on the lid-like Container walls 18, 19 arranged.
  • the insert 38 rests in a local Recess 40 of the container wall 18 of the container 8, and if made of foam existing, it can be made in one piece with the container 8, as far as the latter one Plastic part is to be made.
  • the insert 39 is a separate foam part, that by means of parallel to the container wall 19 support members 41, 42 in position is held.
  • FIG. 8 shows an inner wall 43 which runs parallel to the container wall 19 Device 21, which inner wall 43 the perforation 24 already described having.
  • the inner wall 43 delimits a reflection chamber 44 in which if necessary, an insert 45 made of absorption material can be arranged.
  • the reflection chamber 44 becomes sound energy when flowing through the perforation 24 Heat energy is converted and the sound waves are reflected on the walls, which leads to a superposition of the sound waves. It has been shown that smaller the volume of the resonance chamber 44 or, the distance AS of the inner wall 43 the higher the frequency ranges that can be damped, the greater the wall of the container.
  • the container 8 is, according to FIGS. 9 and 10, adjacent to the inlet channels 3, 4, 5, ie in the Area of the feed lines 11, 12, 13 with compensation chambers 46, 47, 48, 49, 50, 51 provided. They are in a kind of housing 52 with a rectangular shape housed in which the device 21 is effective.
  • the device 21 is on there Inner walls 53, 54, 55, 56, 57, 58, 59 and 60 are provided.
  • the inner walls 53, 54, 55, 56, 57, 58, 59 and 60 are part of the housing 52, with only the Inner walls 53, 54 and 56, 57 and 59, 60 the perforation 24 is provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Exhaust Silencers (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Abstract

The induction system includes a container connected to the cylinder head, extending adjacently to the cylinder head and connected by input lines to the induction channels of the cylinder head, which includes gas exchange control valves. There is a device (21 the container (8) and/or the input lines (11, 12, 13) to reduce the surface radiation.

Description

Die Erfindung betrifft eine Sauganlage für Brennkraftmaschinen nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a suction system for internal combustion engines according to the preamble of claim 1.

Die Reduktion von Geräuschemissionen hochentwickelter Brennkraftmaschinen ist eine vorrangige Entwicklungsaufgabe, bei der Bauteilen, wie Sauganlage, Luftfilter oder dgl. eine besondere Bedeutung zukommt.The reduction of noise emissions from highly developed internal combustion engines is one priority development task in the case of components such as suction system, air filter or Like. Of particular importance.

Bei einer bekannten Sauganlage einer Brennkraftmaschine, DE 195 04 223 A1, ist ein Schalldämpfer vorgesehen, der ein Dämpfungsbauteil mit einer geschlossenen Oberfläche aufweist. Durch das Dämpfungsteil ist ein Ansaugrohr geführt, das im Bereich eines Ringraumes mit Öffnungen versehen ist. Mit dieser Ausführung wird angestrebt die Geräuschemission der Brennkraftmaschine zu reduzieren. Besagte Ausführung erschwert jedoch die freie Brennkraftmaschinen-Gestaltung im Bereich einer Sauganlage und erfordert zusätzlichen Bauraum, der regelmäßig nicht zur Verfügung steht.In a known intake system of an internal combustion engine, DE 195 04 223 A1, is a Muffler provided that a damping component with a closed Surface. An intake pipe is guided through the damping part Area of an annulus is provided with openings. With this version strives to reduce the noise emission of the internal combustion engine. Said Execution, however, complicates the free design of internal combustion engines in the area a suction system and requires additional space that is not regularly used Available.

Es ist daher Aufgabe der Erfindung an der Sauganlage der Brennkraftmaschine selbst solche Vorkehrungen zu treffen, daß zum einen störende Geräusche reduziert und zum anderen leicht verwirklichbare und räumlich günstig unterbringbare Bauteile eingesetzt werden können.It is therefore an object of the invention on the intake system of the internal combustion engine itself to take such precautions that on the one hand reduces annoying noises and on the other other easily implemented and spatially inexpensive components used can be.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Patentanspruchs 1 gelöst, Weitere, die Erfindung ausgestaltende Merkmale sind in den Unteransprüchen enthalten. This object is achieved by the features of claim 1 solved, further features embodying the invention are in the subclaims contain.

Die mit der Erfindung hauptsächlich erzielten Vorteile sind darin zu sehen, daß mit der Einrichtung in der verschiedenen Ausprägung Resonanzspitzen gezielt verstimmt bzw. gestört werden, was zur Reduktion der Oberflächenabstrahlung und damit auch der Geräuschemmission führt. Gerade bei fortschrittlichen Brennkraftmaschinen mit mehr als zwei Ventilen pro Zylinder - Vierventil-Technik - entstehen aufgrund von optimiertem Ladungswechsel unangenehme hochfrequente Geräuschkomponenten, die von der Sauganlage selbst und gegebenenfalls einem vorgeschalteten Luftfilter abgestrahlt werden, ebenso können Störgeräuschkomponenten direkt als Luftschall über die Ansaugmündung in Erscheinung treten. Durch die Einrichtung, die ja Wandungen mit Durchgangsöffnungen, Zwischenteile mit Öffnungen und Einsätze aus Absorptionsmaterial umfassen kann, wird eine deutliche Störgeräuschabsenkung bzw. Betriebsqualitätsverbesserung der Brennkraftmaschine erzielt. Dabei sind die Wandungen, Zwischenteile und Einsätze leicht realisierbar und mit geringem Raumanspruch in die Sauganlage integrierbar. In der Zeichnung sind Ausführungsbeispiele der Erfindung dargestellt, die nachstehend näher beschrieben sind.The main advantages achieved with the invention are the fact that with the Furnishing in the various forms of resonance peaks deliberately detuned or be disturbed, which leads to the reduction of the surface radiation and thus the Noise emission leads. Especially with advanced internal combustion engines with more than two valves per cylinder - four-valve technology - are created due to optimized Charge changes unpleasant high-frequency noise components from the Suction system itself and possibly an upstream air filter emitted noise components can also be transmitted directly as airborne noise Intake mouth appear. By the facility, the walls with yes Through openings, intermediate parts with openings and inserts Absorbent material can include a significant reduction in noise or Operational quality improvement of the internal combustion engine achieved. Here are the Walls, intermediate parts and inserts easily realized and with little Space requirements can be integrated into the suction system. In the drawing, embodiments of the invention are shown, the following are described in more detail.

Es zeigen

Fig.1
eine Ansicht von oben auf eine Sauganlage einer mehrzylinderigen Brennkraftmaschine;
Fig.2
einen Schnitt nach der Linie II-II der Fig.1;
Fig.3
eine Ansicht entsprechend Fig.1;
Fig.4
eine Ansicht entsprechend Fig.1;
Fig.5
eine Ansicht entsprechend Fig.1;
Fig.6
einen Schnitt nach der Linie VI-VI der Fig.5;
Fig.7
eine Ansicht entsprechend Fig.2;
Fig.8
eine Ansicht entsprechend Fig.2;
Fig.9
eine Ansicht entsprechend Fig.1.;
Fig.10
eine schematische Ansicht in Pfeilrichtung A der Fig.1, teilweise im Schnitt.
Show it
Fig. 1
a top view of an intake system of a multi-cylinder internal combustion engine;
Fig. 2
a section along the line II-II of Figure 1;
Fig. 3
a view corresponding to Figure 1;
Fig. 4
a view corresponding to Figure 1;
Fig. 5
a view corresponding to Figure 1;
Fig. 6
a section along the line VI-VI of Figure 5;
Fig. 7
a view corresponding to Figure 2;
Fig. 8
a view corresponding to Figure 2;
Fig. 9
a view corresponding to Fig.1 .;
Fig. 10
a schematic view in the direction of arrow A of Figure 1, partly in section.

Eine Sauganlage 1 ist an einer Brennkraftmaschine 2 angeordnet, von der lediglich Einlaßkanäle 3, 4, 5 eines Zylinderkopfs 6 angedeutet sind. Die Brennkraftmaschine 2 weist zwei gegenüberliegende Zylinderreihen auf, von denen nur die links von einer Mittellängsebene A-A verlaufende Zylinderreihe 7 dargestellt ist; sinngemäß gilt dies auch für die Sauganlage 1, die für die jeweilige Zylinderreihe 7 einen Behälter 8 aufweist. Beide Behälter sind über Verbindungsleitungen 9 und 10 miteinander verbunden, wobei die Verbindungsleitung 9 ein Verteilerrohr und Verbindungsleitung 10 ein Resonanzrohr ist. Im folgenden wird die Ausbildung der Sauganlage 1 allein anhand des einen Behälters 8 beschrieben, da der andere Behälter einen vergleichbaren Aufbau hat.A suction system 1 is arranged on an internal combustion engine 2, of which only Inlet ports 3, 4, 5 of a cylinder head 6 are indicated. The internal combustion engine 2 has two opposing rows of cylinders, only the left of one Central row plane A-A extending cylinder bank 7 is shown; this applies analogously also for the suction system 1, which has a container 8 for the respective cylinder row 7 having. Both containers are connected to one another via connecting lines 9 and 10 connected, the connecting line 9 being a distributor pipe and connecting line 10 is a resonance tube. In the following, the training of the suction system 1 alone using the one container 8 described, since the other container one comparable structure.

Der Behälter 8 ist mit einzelnen rohrförmigen Zuführungsleitungen 11, 12, 13 an die Einlaßkanäle 3, 4, 5 des Zylinderkopfs 6 angeschlossen. Im Zylinderkopf 6 sind pro Zylinder mehr als zwei Ventile, vorzugsweise zwei Einlaßventile und zwei Auslaßventile zur Gaswechselsteuerung untergebracht.The container 8 is with individual tubular supply lines 11, 12, 13 to the Intake ports 3, 4, 5 of the cylinder head 6 connected. In the cylinder head 6 are pro Cylinder more than two valves, preferably two intake valves and two exhaust valves housed for gas exchange control.

Der Behälter 8 weist - von oben gesehen - eine rechteckige Grundform auf, die durch kürzere Behälterwandungen 14, 15 und längere Behälterwandungen 16, 17 bestimmt ist. Sie bilden zusammen mit deckelartigen Behälterwandungen 18, 19 den Behälter 8 und umgeben einen Behälterinnenraum 20. Als Werkstoff für den Behälter eignet sich Metall, Kunststoff oder dgl.The container 8 has - seen from above - a rectangular basic shape that through shorter container walls 14, 15 and longer container walls 16, 17 are determined is. Together with lid-like container walls 18, 19, they form the container 8 and surround a container interior 20. Suitable as a material for the container Metal, plastic or the like

Im Behälterinnenraum 20 ist eine Einrichtung 21 zur Reduktion der im Betrieb der Brennkraftmaschine 2 auftretenden Oberflächenabstrahlung vorgesehen. Die Einrichtung 21 wird gemäß den Fig.1 und 2 durch eine Innenwand 22 gebildet, die mit mehreren oder einer Vielzahl von Durchgangsöffnungen 23 versehen ist. Die Durchgangsöffnungen 23 können nach Art einer Perforation 24 ausgebildet sein und unterschiedliche Durchmesser - DI > DII und - vice versa - aufweisen. Letzteres kann rechnerisch und/oder iterativ definiert werden. Die Innenwand 22 erstreckt sich zwischen den gegenüberliegenden längeren Behälterwandungen 16, 17; denkbar ist aber auch, daß sie die beiden kürzeren Behälterwandungen 14, 15 verbindet. Dabei besteht die Möglichkeit, daß die Innenwand 22 schräg - Winkel α - zu den Behälterwandungen 16, 17 bzw. den Behälterwandungen 15, 16 verläuft. Darüber hinaus kann die Innenwand 22 die gesamte Höhe HG des Behälters 8 einnehmen und die deckelartigen Behälterwandungen 18, 19 miteinander verbinden.A device 21 for reducing the surface radiation occurring during operation of the internal combustion engine 2 is provided in the container interior 20. 1 and 2, the device 21 is formed by an inner wall 22 which is provided with a plurality or a plurality of through openings 23. The through openings 23 can be designed in the manner of a perforation 24 and have different diameters - DI> DII and - vice versa . The latter can be defined arithmetically and / or iteratively. The inner wall 22 extends between the opposite longer container walls 16, 17; it is also conceivable that it connects the two shorter container walls 14, 15. There is the possibility that the inner wall 22 extends obliquely - angle α - to the container walls 16, 17 or the container walls 15, 16. In addition, the inner wall 22 can take up the entire height HG of the container 8 and connect the lid-like container walls 18, 19 to one another.

In Fig.3 ist dargestellt, daß in die Zuführungsleitungen 11, 12, 13 die Einrichtung 21 bildende erste Einlagen 25, 26, 28 eingesetzt sind. Es handelt sich um örtliche Rohrabschnitte, die die Zuführungsleitungen 11, 12, 13 an ihrer Innenseite umhüllen, in einem vom Behälter 8 weggeführten Bereich ruhen und mit trichterförmigen Erweiterungen 29, 30, 31 in den Behälterinnenraum 20 hineinragen. Vergleichbare zweite Zwischenteile 32, 33 sind in den Verbindungsleitungen 9,10 vorgesehen. Diese Zwischenteile 32, 33 verlaufen mit zylindrischen Verlängerungen 34, 35 innerhalb des Behälterinnenraums 20. Die ebenfalls die Perforation 24 aufweisenden Zwischenteile 25, 26, 27 und 32, 33 liegen direkt an der Innenseite der Zuführungsleitungen 11, 12, 13 bzw. der Verbindungsleitungen 9, 10 an. Möglich ist aber auch sie unter Bildung eines ringartigen Zwischenraums ZR überwiegend berührungsfrei in die entsprechende Leitungen einzusetzen - Fig.4 -.FIG. 3 shows that the device 21 in the feed lines 11, 12, 13 forming first deposits 25, 26, 28 are used. It is local Pipe sections which surround the supply lines 11, 12, 13 on their inside, rest in an area leading away from the container 8 and with funnel-shaped Extensions 29, 30, 31 protrude into the container interior 20. Comparable second intermediate parts 32, 33 are provided in the connecting lines 9, 10. These intermediate parts 32, 33 extend with cylindrical extensions 34, 35 inside the container interior 20. The perforations 24, which also have Intermediate parts 25, 26, 27 and 32, 33 are located directly on the inside of the Feed lines 11, 12, 13 or the connecting lines 9, 10. Is possible but also predominantly with the formation of an annular space ZR to be inserted into the corresponding lines without contact - Fig. 4 -.

Aus den Fig. 5 und 6 geht hervor, daß die Einrichtung 21 Einsätze 36, 37 aus Absorptionsmaterial umfaßt, die im Behälterinnenraum 20 an den gegenüberliegenden Behälterwandungen 14, 15 vorgesehen sind. Das Volumen V I und V II der Einsätze 36, 37 ist rechnerisch und/oder iterativ ermittelbar, wobei die Einsätze 36, 37 aus Schaumstoff, Keramik oder dgl. hergestellt sein können. Eine andere Ausführungsform ist in Fig. 7 dargestellt. Danach sind Einsätze 38, 39 an den deckelartigen Behälterwandungen 18, 19 angeordnet. Der Einsatz 38 ruht in einer örtlichen Vertiefung 40 der Behälterwandung 18 des Behälters 8, und wenn aus Schaumstoff bestehend, kann er aus einem Stück mit dem Behälter 8, soweit letzterer ein Kunststoffteil ist, hergestellt sein. Der Einsatz 39 ist ein separates Schaumstoffteil, das mittels parallel zur Behälterwandung 19 verlaufender Stützglieder 41, 42 in Lage gehalten wird.5 and 6 that the device 21 inserts 36, 37 from Absorbent material includes that in the container interior 20 to the opposite Container walls 14, 15 are provided. The volume V I and V II of the inserts 36, 37 can be determined mathematically and / or iteratively, the inserts 36, 37 from Foam, ceramic or the like. Can be made. Another embodiment is shown in Fig. 7. Thereafter, inserts 38, 39 are on the lid-like Container walls 18, 19 arranged. The insert 38 rests in a local Recess 40 of the container wall 18 of the container 8, and if made of foam existing, it can be made in one piece with the container 8, as far as the latter one Plastic part is to be made. The insert 39 is a separate foam part, that by means of parallel to the container wall 19 support members 41, 42 in position is held.

Die Fig. 8 zeigt eine parallel zur Behälterwandung 19 verlaufende Innenwand 43 der Einrichtung 21, welche Innenwandung 43 die bereits beschriebene Perforation 24 aufweist. Die Innenwand 43 begrenzt eine Reflexionskammer 44, in der gegebenenfalls ein Einsatz 45 aus Absorptionsmaterial angeordnet werden kann. In der Reflexionskammer 44 wird beim Durchströmen der Perforation 24 Schallenergie in Wärmeenergie umgewandelt und die Schallwellen werden an den Wänden reflektiert, was zu einer Überlagerung der Schallwellen führt. Dabei hat sich gezeigt, daß je kleiner das Volumen der Resonanzkammer 44 bzw., der Abstand AS der Innenwand 43 zur Behälterwandung ist desto höhere Frequenzbereiche können bedämpft werden.8 shows an inner wall 43 which runs parallel to the container wall 19 Device 21, which inner wall 43 the perforation 24 already described having. The inner wall 43 delimits a reflection chamber 44 in which if necessary, an insert 45 made of absorption material can be arranged. In the reflection chamber 44 becomes sound energy when flowing through the perforation 24 Heat energy is converted and the sound waves are reflected on the walls, which leads to a superposition of the sound waves. It has been shown that smaller the volume of the resonance chamber 44 or, the distance AS of the inner wall 43 the higher the frequency ranges that can be damped, the greater the wall of the container.

Der Behälter 8 ist nach Fig. 9 und 10 benachbart den Einaßkanälen 3, 4, 5 also im Bereich der Zuführungsleitungen 11, 12, 13 mit Ausgleichskammern 46, 47, 48, 49, 50, 51 versehen. Sie sind in einer Art Gehäuse 52 mit rechteckiger Form untergebracht, in dem die Einrichtung 21 wirksam ist. Die Einrichtung 21 ist dort an Innenwänden 53, 54, 55, 56, 57, 58, 59 und 60 vorgesehen. Die Innenwände 53, 54, 55, 56, 57, 58, 59 und 60 sind Bestandteil des Gehäuses 52, wobei lediglich an den Innenwänden 53, 54 und 56, 57 sowie 59, 60 die Perforation 24 vorgesehen ist.The container 8 is, according to FIGS. 9 and 10, adjacent to the inlet channels 3, 4, 5, ie in the Area of the feed lines 11, 12, 13 with compensation chambers 46, 47, 48, 49, 50, 51 provided. They are in a kind of housing 52 with a rectangular shape housed in which the device 21 is effective. The device 21 is on there Inner walls 53, 54, 55, 56, 57, 58, 59 and 60 are provided. The inner walls 53, 54, 55, 56, 57, 58, 59 and 60 are part of the housing 52, with only the Inner walls 53, 54 and 56, 57 and 59, 60 the perforation 24 is provided.

Claims (19)

Sauganlage für Brennkraftmaschinen der Hubkolbenbauart, die einen mit einem Zylinderkopf verbundenen Behälter umfaßt, welcher Behälter sich benachbart dem Zylinderkopf erstreckt und über Zuführungsleitungen an Saugkanäle des zur Gaswechselsteuerung mit Ventilen versehen Zylinderkopfs angeschlossen ist, dadurch gekennzeichnet, daß in dem Behälter (8) und/oder den Zuführungsleitungen (11,12, 13) eine Einrichtung (21) zur Reduktion der Oberflächenabstrahlung vorgesehen ist.Suction system for internal combustion engines of the reciprocating piston type, one with one Cylinder head connected container includes which container is adjacent to the Cylinder head extends and via supply lines to the intake ducts Gas exchange control with valves provided cylinder head is connected, thereby characterized in that in the container (8) and / or the feed lines (11, 12, 13) a device (21) for reducing the surface radiation is provided. Sauganlage nach Anspruch 1, dadurch gekennzeichnet, daß die Einrichtung (21) ein oder mehrere Innenwände (22) umfaßt, die in denen Durchgangsöffnungen (23) vorgesehen sind.Suction system according to claim 1, characterized in that the device (21) or comprises a plurality of inner walls (22), in which through openings (23) are provided. Sauganlage nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß die Einrichtung (21) Rohrabschnitte aufweist, die als Einlagen (25, 26, 27) in den Zuführungsleitungen (11, 12, 13) des Behälters (8) ausgebildet sind.Suction system according to claims 1 and 2, characterized in that the Device (21) has pipe sections which as inserts (25, 26, 27) in the Feed lines (11, 12, 13) of the container (8) are formed. Sauganlage für ein Brennkraftmaschine mit gegenüberliegenden Zylinderreihen und zwei über Vebindungsleitungen gekoppelte Behälter nach einem oder mehreren der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Einlagen (32, 33) in die Verbindungsleitungen (9, 10) eingesetzt sind.Suction system for an internal combustion engine with opposing rows of cylinders and two containers coupled via connecting lines according to one or more of the preceding claims, characterized in that the inserts (32, 33) in the Connection lines (9, 10) are used. Sauganlage nach den Ansprüchen 3 und 4, dadurch gekennzeichnet, die Einlagen (25, 26, 27 und 32, 33) an den Zuführungsleitungen (11, 12, 13) bzw. Verbindungsleitungen (9, 10) anliegen.Suction system according to claims 3 and 4, characterized in that the deposits (25, 26, 27 and 32, 33) on the feed lines (11, 12, 13) and Connect cables (9, 10). Sauganlage nach einem oder mehreren der vorangehenden Ansprüche, daß die Einlagen (25, 26, 27 und 32, 33) unter Bildung eines beispielsweise kleinen Zwischenraums (ZR) in die Zuführungsleitungen (11, 12, 13) bzw. Verbindungsleitungen (32, 33) eingesetzt sind.Suction system according to one or more of the preceding claims, that the Deposits (25, 26, 27 and 32, 33) to form a small one, for example Space (ZR) in the feed lines (11, 12, 13) or Connecting lines (32, 33) are used. Sauganlage nach Anspruch 2, dadurch gekennzeichnet, daß zumindest eine Innenwand (22) der Einrichtung (21) sich zwischen gegenüberliegenden Behälterwandungen (z.B. 14, 15) erstreckt.Suction system according to claim 2, characterized in that at least one Inner wall (22) of the device (21) between opposite Container walls (e.g. 14, 15) extends. Sauganlage mit etwa parallel verlaufenden aufrechten Behälterwandungen nach den Ansprüchen 2 und 7, dadurch gekennzeichnet, daß die Innenwand (22) der Einrichtung (21) schräg zwischen den Behälterwandungen (z.B. 14, 15) verläuft.Suction system with approximately parallel upright container walls according to the Claims 2 and 7, characterized in that the inner wall (22) of the device (21) runs diagonally between the container walls (e.g. 14, 15). Sauganlage mit etwa parallel verlaufenden horizontal verlaufenden Behälterwandungen nach einem oder mehreren der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Innenwand (22) der Einrichtung (21) sich über die gesamte Höhe (HB) des Behälters (8) erstreckt.Suction system with approximately parallel, horizontally running Container walls according to one or more of the preceding claims, characterized in that the inner wall (22) of the device (21) over the entire height (HB) of the container (8) extends. Sauganlage nach Anspruch 2, dadurch gekennzeichnet, daß die Durchgangsöffnungen (23) nach Art einer Perforation (24) an der Einrichtung (21) angeordnet sind.Suction system according to claim 2, characterized in that the Through openings (23) in the manner of a perforation (24) on the device (21) are arranged. Sauganlage nach einem oder mehreren der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Einrichtung (21) Durchgangsöffnungen (23) mit unterschiedliche Durchmessern (DI>DII) aufweist.Suction system according to one or more of the preceding claims, characterized characterized in that the device (21) through openings (23) with has different diameters (DI> DII). Sauganlage nach Anspruch 1, dadurch gekennzeichnet, daß die Einrichtung (21) Einsätze (36, 37) aus Absorptionsmaterial umfaßt, die im Behälterinnenraum (20) des Behälters (8) angeordnet sind. Suction system according to claim 1, characterized in that the device (21) Inserts (36, 37) made of absorption material, which in the container interior (20) of the Container (8) are arranged. Sauganlage nach einem oder mehreren der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Einsätze (36, 37) an gegenüberliegenden Behälterwandungen (16, 17) angebracht sindSuction system according to one or more of the preceding claims, characterized characterized in that the inserts (36, 37) on opposite container walls (16, 17) are attached Sauganlage nach Anspruch 12, dadurch gekennzeichnet, daß als Absorptionsmaterial für die Einsätze (36, 37) Keramik, Schaumstoff oder dergl. dient.Suction system according to claim 12, characterized in that as Absorbent material for the inserts (36, 37) ceramic, foam or the like. Sauganlage nach einem oder mehreren der vorangehenden Ansprüche, dadurch gekennzeichnet, daß eine Innenwand (43) der Einrichtung (21) mit relativ geringem, jedoch etwa parallelem Abstand zu einer Behälterwandung (19) verläuft.Suction system according to one or more of the preceding claims, characterized characterized in that an inner wall (43) of the device (21) with a relatively small, however approximately parallel distance to a container wall (19). Sauganlage nach Anspruch 14, dadurch gekennzeichnet, daß zwischen der Innenwand (43) der Einrichtung (21) und der Behälterwandung (19) ein Reflexionskammer (44) ausgebildet ist.Suction system according to claim 14, characterized in that between the Inner wall (43) of the device (21) and the container wall (19) Reflection chamber (44) is formed. Sauganlage nach einem oder mehreren der vorangehenden Ansprüche, daß zwischen Innenwand (43) der Einrichtung (21) und der Behälterwandung (19) ein Einsatz (45) vorgesehen ist.Suction system according to one or more of the preceding claims, that between the inner wall (43) of the device (21) and the container wall (19) Insert (45) is provided. Sauganlage nach einem oder mehreren der vorangehenden Ansprüche dadurch gekennzeichnet, daß der Behälter (8) benachbart den Einlaßkanälen (3, 4, 5) mit Ausgleichskammern (47, 48, 49, 50) versehen ist, in denen zumindest eine Einrichtung (21) vorgesehen ist.Suction system according to one or more of the preceding claims characterized in that the container (8) adjacent to the inlet channels (3, 4, 5) Compensation chambers (47, 48, 49, 50) is provided, in which at least one Device (21) is provided. Sauganlage nach Anspruch 18, dadurch gekennzeichnet, daß die Ausgleichskammern (47, 48, 49, 50) in die Zuführungsleitungen (11, 12, 13) des Behälters (8) integriert sind.Suction system according to claim 18, characterized in that the Compensation chambers (47, 48, 49, 50) in the feed lines (11, 12, 13) of the Containers (8) are integrated.
EP00102912A 1999-04-07 2000-02-12 Intake system for combustion engines Withdrawn EP1043494A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19915523 1999-04-07
DE1999115523 DE19915523A1 (en) 1999-04-07 1999-04-07 Suction system for internal combustion engines

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EP1043494A2 true EP1043494A2 (en) 2000-10-11
EP1043494A3 EP1043494A3 (en) 2001-06-27

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FR2905141A1 (en) * 2006-08-24 2008-02-29 Peugeot Citroen Automobiles Sa Gas i.e. air, intake system for motor vehicle`s oil engine, has reduction device to reduce disparities of turbulent flow between cylinders and including gas flow stabilizing grids, where grids having plates are associated to gas distributor
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EP1403506A3 (en) * 2002-09-21 2005-06-15 Mann+Hummel Gmbh Silencer for the reduction of air noise and method for the production thereof
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WO2016030055A1 (en) * 2014-08-29 2016-03-03 Mahle International Gmbh Shunt resonator for an air-intake installation of an internal combustion engine
FR3036731A1 (en) * 2015-05-29 2016-12-02 Mecaplast France DEVICE FOR ATTENUATING MOUTH NOISES AND RADIANT NOISE
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EP1043494A3 (en) 2001-06-27
DE19915523A1 (en) 2000-10-26

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