DE19526241B4 - Air intake duct system for internal combustion engines - Google Patents

Air intake duct system for internal combustion engines Download PDF

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Publication number
DE19526241B4
DE19526241B4 DE19526241A DE19526241A DE19526241B4 DE 19526241 B4 DE19526241 B4 DE 19526241B4 DE 19526241 A DE19526241 A DE 19526241A DE 19526241 A DE19526241 A DE 19526241A DE 19526241 B4 DE19526241 B4 DE 19526241B4
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Germany
Prior art keywords
switching flap
duct system
short
air intake
internal combustion
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Expired - Lifetime
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DE19526241A
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German (de)
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DE19526241A1 (en
Inventor
Hans-Jürgen Hüsges
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Pierburg GmbH
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Pierburg GmbH
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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
    • F02M35/1034—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
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B27/00—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues
    • F02B27/02—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means
    • F02B27/0205—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means characterised by the charging effect
    • F02B27/0215—Oscillating pipe charging, i.e. variable intake pipe length charging
    • 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
    • F02B27/00—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues
    • F02B27/02—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means
    • F02B27/0226—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means characterised by the means generating the charging effect
    • F02B27/0268—Valves
    • F02B27/0273—Flap valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/1005—Details of the flap
    • F02D9/101—Special flap shapes, ribs, bores or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/1005—Details of the flap
    • F02D9/1025—Details of the flap the rotation axis of the flap being off-set from the flap center axis
    • F02D9/103—Details of the flap the rotation axis of the flap being off-set from the flap center axis the rotation axis being located at an edge
    • 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
    • F02M35/10065—Valves arranged in the plenum chamber
    • 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
    • F02M35/10072—Intake runners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
    • F02M35/10111—Substantially V-, C- or U-shaped ducts in direction of the flow path
    • 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
    • F02B27/00—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues
    • F02B27/02—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means
    • F02B27/0226—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means characterised by the means generating the charging effect
    • F02B27/0231—Movable ducts, walls or the like
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Abstract

Luftansaugkanalsystem für Brennkraftmaschinen mit einem Sammeleinlasskanal und von diesem zu den Zylindern führenden Einzelansaugkanälen, gebildet aus aneinander gefügten Teilstücken und einem oder mehreren Passstücken, die in die Teilstücke eingesetzt sind, wobei jeder Einzelansaugkanal einen Kurzschlusskanal aufweist, der in Abhängigkeit von Betriebskenngrößen der Brennkraftmaschine zur Verkürzung der Ansauglänge durch eine Schaltklappe in den Sammeleinlasskanal hinein geöffnet werden kann, wobei die Kurzschlusskanäle von einer gemeinsamen, im Sammeleinlasskanal gelagerten Schaltklappe geschaltet werden, dadurch gekennzeichnet, dass die Schaltklappe (11) innerhalb von Lagerflächen (15, 16) eines der Teilstücke (4) und des/der Passstücke (14) derart gelagert ist, dass die Schaltklappe (11) in Schließstellung in die Kurzschlusskanäle (10) hineinreicht und bei Öffnung in den Sammeleinlasskanal (6) hineinschwenkt.The air intake channel for internal combustion engines with a collection inlet duct and leading from this to the cylinders Single intake ducts, formed from one another sections and one or more fitting pieces, in the cuts are used, each individual intake a short-circuit channel which, depending on of operating characteristics of Internal combustion engine for shortening the suction length be opened by a switching flap into the collecting inlet channel inside can, with the short-circuit channels from a common switching flap mounted in the collecting inlet duct be switched, characterized in that the switching flap (11) within storage areas (15, 16) one of the cuts (4) and the fitting (s) (14) is mounted such that the switching flap (11) in the closed position into the short circuit channels (10) extends and when opening pivots into the collection inlet channel (6).

Figure 00000001
Figure 00000001

Description

Die Erfindung betrifft ein Lufteinlasskanalsystem für Brennkraftmaschinen nach dem Oberbegriff des Anspruchs 1.The The invention relates to an air intake duct system for internal combustion engines the preamble of claim 1.

Ein derartiger Lufteinlasskanalsystem ist aus der US 5,211,139 bekannt. Ein weiteres Lufteinlasskanalsystem ist in der DE 89 14 049 U1 angegeben und ermöglicht es, dass alle Einzelteile im Druckgussverfahren herstellbar sind, wobei erwähnt ist, dass ggf. auch eine Vorrichtung zur Umschaltung auf kürzere Ansauglängen verwendet werden kann.Such an air inlet duct system is known from US 5,211,139. Another air intake duct system is in the DE 89 14 049 U1 specified and makes it possible that all items are produced by die casting, it being mentioned that, if necessary, a device for switching to shorter Ansauglängen can be used.

Eine solche Vorrichtung ist in der DE 89 06 045 U1 angegeben, wobei jeder Einzelansaugkanal einen Kurzschlusskanal aufweist, der in Abhängigkeit von Betriebskenngrößen der Brennkraftmaschine zur Verkürzung der Ansauglänge durch eine Schaltklappe in den Sammeleinlasskanal hinein geöffnet werden kann.Such a device is in the DE 89 06 045 U1 indicated, wherein each Einzelansaugkanal has a short-circuit channel, which can be opened depending on operating characteristics of the internal combustion engine to shorten the intake length by a switching flap into the collecting inlet channel inside.

Bei dem Ausführungsbeispiel ist vorgesehen, dass wenigstens immer zwei Schaltklappen auf einer Schaltklappenwelle angeordnet sind mittels Verschraubung, Vernietung oder Verschweißung.at the embodiment is provided that at least two switching flaps on one Switch valve shaft are arranged by means of screwing, riveting or welding.

Hierfür ist jedoch ein erheblicher Montageaufwand nötig, wobei das Risiko des Lösens der Klappen besteht, das eine Zerstörung der Brennkraftmaschine zur Folge hätte. Die aus Flachblech hergestellten Klappen weisen darüber hinaus strömungstechnische Nachteile auf.However, this is a considerable installation effort needed being the risk of loosening the flaps is the destruction of the internal combustion engine would result. The flaps made of flat sheet metal have more than that fluidic Disadvantages.

Hiervon ausgehend liegt der Erfindung die Aufgabe zugrunde, Maßnahmen aufzufinden, mit denen ein gattungsgemäßes Luftansaugkanalsystem durch weniger Bauteile herstellbar, einfach montierbar wird, wobei diese Maßnahmen zusätzlich eine stromungstechnische Optimierung bewirken sollen.Of these, Based on the object of the invention, measures by which a generic Luftansaugkanalsystem by fewer components to produce, easy to assemble, and this activities additionally should cause a stromungstechnische optimization.

Diese Aufgabe ist durch die im Anspruch 1 angegebenen Merkmale gelöst worden. Vorteilhafte Weiterbildungen sind in den Unteransprüchen angegeben.These The object has been solved by the features specified in claim 1. Advantageous developments are specified in the subclaims.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird nachfolgend beschrieben.One embodiment The invention is illustrated in the drawing and will be described below described.

Die Zeichnung zeigt:The Drawing shows:

1 eine Teilansicht eines Schnittes durch ein Luftansaugkanalsystem; 1 a partial view of a section through an air intake duct system;

2 einen Schnitt aus 1, 2 a cut out 1 .

3 eine Einzelheit aus 2. 3 a detail 2 ,

1 zeigt einen Querschnitt eines Luftansaugkanalsystems 1 einer Brennkraftmaschine, aus dem ein Zylinderkopf 2 der Brennkraftmaschine sowie eine Teilungsebene 3 von Dichtflächen zweier Teilstücke 4, 5 erkennbar sind, die miteinander verschraubt das Luftansaugkanalsystem 1 bilden. Dieses weist einen zentral angeordneten Sammeleinlaßkanal 6 auf, in den ein nicht dargestellter Lufteinlaßkanal einmündet, der von einer Drosseleinrichtung kontrolliert wird. Von dem Sammeleinlaßkanal 6 zweigen spiralförmig ausgebildete, zu den Zylindern der Brennkraftmaschine führende Einzelansaugkanäle 9 ab, wobei jeder dieser Kanäle 9 über einen Kurzschlußkanal 10 direkt mit dem Sammeleinlaßkanal 6 verbunden werden kann, wenn eine in den Kurzschlußkanälen 10 angeordnete Schaltklappe 11 in Öffnungsstellung gebracht wird. Mit diesen Schaltklappen 11 kann je nach Betriebsart der Brennkraftmaschine eine Steuerung der Einzelansaugkanallängen (kurz oder lang) erfolgen. 1 shows a cross section of an air intake duct system 1 an internal combustion engine, from which a cylinder head 2 the internal combustion engine and a division level 3 of sealing surfaces of two sections 4 . 5 are recognizable, screwed together the air intake duct system 1 form. This has a centrally located collecting inlet channel 6 in which an unillustrated air inlet duct opens, which is controlled by a throttle device. From the collection inlet duct 6 branch spirally formed, leading to the cylinders of the engine Einzelansaugkanäle 9 from, each of these channels 9 via a short-circuit channel 10 directly to the collection inlet channel 6 can be connected if one in the short-circuit channels 10 arranged switching flap 11 is brought into the open position. With these switching flaps 11 can take place depending on the operating mode of the internal combustion engine, a control of the Einzelansaugkanallängen (short or long).

Die in bezug auf den Sammeleinlaßkanal 6 innenliegenden Wandungen 12 der Einzelansaugkanäle 9 und die Wandung 13 des Sammeleinlaßkanals 6 sind von einem spiralförmigen Paßstück 14 gebildet, das von den Dichtflächen ausgehend in die entsprechenden Ausnehmungen der Teilstücke 4, 5 eingesetzt ist.With respect to the collection intake passage 6 internal walls 12 the individual intake ducts 9 and the wall 13 the collection inlet channel 6 are of a spiral fitting 14 formed, starting from the sealing surfaces in the corresponding recesses of the sections 4 . 5 is used.

Erfindungsgemäß ist nun vorgesehen, daß die Kurzschlußkanäle 10 von einer gemeinsamen, im Sammeleinlaßkanal 6 gelagerten Schaltklappe 11 geschaltet werden, wobei die Schaltklappe 11 innerhalb von Lagerflächen 15, 16 eines der Teilstücke 4 und des/der Paßstücke 14 gelagert ist und bei Öffnung in den Sammeleinlaßkanal 6 hineinschwenkt (Strichpunktlinie).According to the invention it is now provided that the short-circuit channels 10 from a common, in the collection inlet duct 6 mounted switching flap 11 be switched, the switching flap 11 within storage areas 15 . 16 one of the cuts 4 and of the fitting (s) 14 is stored and when opening in the collecting inlet channel 6 swivels in (dash-dot line).

Durch die als ein Druckgußteil herstellbaren Schaltklappen 11 und durch die ebenfalls im Druckgußverfahren hergestellten Lagerflächen 15, 16 entfällt die bei Luftansaugkanalsystemen des Standes der Technik übliche mechanische Bearbeitung. Die Montage ist sehr einfach auszuführen. Es ist sehr vorteilhaft, für die Abdichtung der Einzelansaugkanäle 9 gegeneinander, wenn die Schaltklappe 11 den einzelnen Trennwänden 17 der Einzelansaugkanäle 9 zugeordnete Stege 18 aufweist, die Schlitze 19 bilden, in die die hier U-förmigen Trennwände 17 beim Schließen eintauchen, wie aus 2 und 3 entnehmbar ist, in denen ein Schnitt aus 1 dargestellt ist.By the manufacturable as a Druckgußteil switching flaps 11 and by the likewise produced by die casting bearing surfaces 15 . 16 eliminates the usual in air intake duct systems of the prior art mechanical processing. The assembly is very easy to perform. It is very beneficial for the sealing of the individual intake ducts 9 against each other when the switching flap 11 the individual partitions 17 the individual intake ducts 9 associated webs 18 has the slots 19 form, in which the here U-shaped partitions 17 when closing dive, like out 2 and 3 is removable, in which a cut out 1 is shown.

Diese Schnitte zeigen die Querschnitte der Einzelansaugkanäle 9, gebildet aus Wänden des Teilstückes 5 und den Trennwänden des Paßstückes 14, sowie die geschlossen dargestellten Schaltklappen 11. Die Lagerflächen 15 befinden sich an mit dem Teilstück 4 einstückig gegossenen Lagerböcken 20, die Lagerflächen 16 befinden sich an dem Paßstück 14. Die Schaltklappen 11 weisen an den Enden Lagerzapfen 21 auf, die, wie erwähnt, von den Lagerflächen 15, 16 gelagert werden, es können jedoch zusätzliche Lagerböcke/Lager zwischen den Enden vorgesehen sein.These sections show the cross sections of the individual intake ducts 9 , formed from walls of the section 5 and the partitions of the fitting 14 , as well as the switching flaps shown closed 11 , The storage areas 15 are with with the section 4 integrally cast bearing blocks 20 , the storage areas 16 are located on the fitting 14 , The switching flaps 11 have at the ends journals 21 on, as mentioned, from the storage areas 15 . 16 be stored, however, it can be provided between the ends of additional bearing blocks / bearings.

Für einen günstigen Lufteinlauf bei geöffneter Schaltklappe (in Strichpunktlinie dargestellt) ist vorgesehen, daß die Schaltklappe 11 an ihrem zum Lagerdrehpunkt 22 äußeren Ende und die Kurzschlußkanäle an der mit diesem Ende korrespondierenden Wand Einlaufwülste 23, 24 aufweisen.For a favorable air inlet with open switching flap (shown in dotted line) is provided that the switching flap 11 at her to the bearing pivot point 22 outer end and the short-circuit channels at the corresponding wall with this end inlet beads 23 . 24 exhibit.

Wie in 2 dargestellt ist, kann die Schaltklappe 11 eine zum Lagerdrehpunkt 22 beabstandete Einhängeöffnung 25 aufweisen, in die eine Schubstange 26 eingehängt ist, die direkt oder über einen Umlenkhebel mit einem Stellelement verbunden ist.As in 2 is shown, the switching flap 11 one to the bearing pivot point 22 spaced suspension opening 25 in which a push rod 26 mounted, which is connected directly or via a lever with an actuating element.

In Abänderung der Ausführung nach 1 und 2, der Vorstellbarkeit wegen nicht extra dargestellt, kann nur jede 2-te/x-te Trennwand 17 zwischen den Einzelansaugkanälen 9 durch Stege 18 der Schaltklappe 11 umfaßt sein.In modification of the execution after 1 and 2 However, for the sake of affordability not shown separately, only every 2nd / 5th partition can be used 17 between the individual intake ducts 9 through bars 18 the switching flap 11 to be inclusive.

Mit der erfindungsgemäßen Ausführung des Luftansaugkanalsystems liegt eine mit geringen im Druckgußverfahren herstellbaren Bauteilen zu realisierende Lösung vor, die einfach zu montieren ist und strömungstechnische Vorteile aufweist.With the inventive design of the air intake duct system is one with small manufacturable by die casting components to be realized solution before, which is easy to assemble and has fluidic advantages.

Claims (5)

Luftansaugkanalsystem für Brennkraftmaschinen mit einem Sammeleinlasskanal und von diesem zu den Zylindern führenden Einzelansaugkanälen, gebildet aus aneinander gefügten Teilstücken und einem oder mehreren Passstücken, die in die Teilstücke eingesetzt sind, wobei jeder Einzelansaugkanal einen Kurzschlusskanal aufweist, der in Abhängigkeit von Betriebskenngrößen der Brennkraftmaschine zur Verkürzung der Ansauglänge durch eine Schaltklappe in den Sammeleinlasskanal hinein geöffnet werden kann, wobei die Kurzschlusskanäle von einer gemeinsamen, im Sammeleinlasskanal gelagerten Schaltklappe geschaltet werden, dadurch gekennzeichnet, dass die Schaltklappe (11) innerhalb von Lagerflächen (15, 16) eines der Teilstücke (4) und des/der Passstücke (14) derart gelagert ist, dass die Schaltklappe (11) in Schließstellung in die Kurzschlusskanäle (10) hineinreicht und bei Öffnung in den Sammeleinlasskanal (6) hineinschwenkt.An intake air duct system for internal combustion engines having a collecting inlet duct and leading to the cylinders Einzelansaugkanälen formed of juxtaposed sections and one or more fittings, which are inserted into the sections, each Einzelansaugkanal has a short-circuit channel, depending on operating characteristics of the internal combustion engine to shorten the Suction length can be opened by a switching flap into the collecting inlet channel, wherein the short-circuit channels are switched by a common switching flap mounted in the collecting inlet channel, characterized in that the switching flap ( 11 ) within storage areas ( 15 . 16 ) one of the cuts ( 4 ) and of the fitting pieces ( 14 ) is mounted such that the switching flap ( 11 ) in the closed position into the short-circuit channels ( 10 ) and when opening into the collecting inlet channel ( 6 ) into it. Luftansaugkanalsystem nach Anspruch 1, dadurch gekennzeichnet, dass die Schaltklappe (11) den einzelnen Trennwänden (17) der Einzelansaugkanäle (9) zugeordnete Stege (18) aufweist, die Schlitze (19) bilden, in die die Trennwände (17) beim Schließen eintauchen.Air intake duct system according to claim 1, characterized in that the switching flap ( 11 ) the individual partitions ( 17 ) of the individual intake ducts ( 9 ) associated webs ( 18 ), the slots ( 19 ) into which the partitions ( 17 ) when closing immerse. Luftansaugkanalsystem nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Schaltklappe (11) an ihrem zum Lagerdrehpunkt (22) äußeren Ende und die Kurzschlusskanäle an der mit diesem Ende korrespondierenden Wand Einlaufwülste (23, 24) aufweisen.Air intake duct system according to claim 1 or 2, characterized in that the switching flap ( 11 ) at its to the pivot point ( 22 ) outer end and the short-circuit channels at the wall corresponding to this end inlet beads ( 23 . 24 ) exhibit. Luftansaugkanalsystem nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Schaltklappe (11) eine zum Lagerdrehpunkt (22) beabstandete Einhängeöffnung (25) aufweist, in die eine Schubstange (26) eingehängt ist, die direkt oder über einen Umlenkhebel mit einem Stellelement verbunden ist.Air intake duct system according to one of the preceding claims, characterized in that the switching flap ( 11 ) one to the bearing pivot ( 22 ) spaced mounting hole ( 25 ), into which a push rod ( 26 ) is mounted, which is connected directly or via a lever with an actuating element. Luftansaugkanalsystem nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, dass nur jede zweite/x-te Wand (17) durch Stege (18) der Schaltklappe (11) umfasst ist.Air intake duct system according to one of claims 2 to 4, characterized in that only every second / x th wall ( 17 ) by webs ( 18 ) the switching flap ( 11 ) is included.
DE19526241A 1995-07-18 1995-07-18 Air intake duct system for internal combustion engines Expired - Lifetime DE19526241B4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19526241A DE19526241B4 (en) 1995-07-18 1995-07-18 Air intake duct system for internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19526241A DE19526241B4 (en) 1995-07-18 1995-07-18 Air intake duct system for internal combustion engines

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DE19526241A1 DE19526241A1 (en) 1997-01-23
DE19526241B4 true DE19526241B4 (en) 2006-02-09

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19845879B4 (en) * 1998-10-06 2007-02-22 Pierburg Gmbh Air intake duct system for internal combustion engines
DE10148601B4 (en) * 2001-10-02 2007-01-25 Pierburg Gmbh variable intake
DE10332640B3 (en) 2003-07-18 2004-12-16 Pierburg Gmbh Air intake channel system for an internal combustion engine comprises an opening having a flow cross-sectional area that is a specified percentage of the flowable cross-sectional area of individual air intake channels
DE102007012827A1 (en) 2007-03-17 2008-09-18 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Fresh gas supply system for internal combustion engine, has individual pipe, and mainstream path that leads from main inlet to outlet and is larger than auxiliary stream path leading from auxiliary inlet to outlet

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8906045U1 (en) * 1989-05-16 1989-07-27 Pierburg Gmbh, 4040 Neuss, De
DE8914049U1 (en) * 1989-11-29 1990-02-01 Pierburg Gmbh, 4040 Neuss, De
US5211139A (en) * 1992-09-08 1993-05-18 Siemens Automotive Limited Active manifold

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8906045U1 (en) * 1989-05-16 1989-07-27 Pierburg Gmbh, 4040 Neuss, De
DE8914049U1 (en) * 1989-11-29 1990-02-01 Pierburg Gmbh, 4040 Neuss, De
US5211139A (en) * 1992-09-08 1993-05-18 Siemens Automotive Limited Active manifold

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