DE4327069A1 - Intake system of an internal combustion engine - Google Patents

Intake system of an internal combustion engine

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Publication number
DE4327069A1
DE4327069A1 DE4327069A DE4327069A DE4327069A1 DE 4327069 A1 DE4327069 A1 DE 4327069A1 DE 4327069 A DE4327069 A DE 4327069A DE 4327069 A DE4327069 A DE 4327069A DE 4327069 A1 DE4327069 A1 DE 4327069A1
Authority
DE
Germany
Prior art keywords
suction
section
line
straight
combustion engine
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Withdrawn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
DE4327069A
Other languages
German (de)
Inventor
Jurij Gartner
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke 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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Priority to DE4327069A priority Critical patent/DE4327069A1/en
Publication of DE4327069A1 publication Critical patent/DE4327069A1/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Withdrawn legal-status Critical Current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
    • F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
    • F02M35/10144—Connections of intake ducts to each other or to another device
    • 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
    • F02B27/0231—Movable ducts, walls or the like
    • 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
    • F02B27/0247—Plenum chambers; Resonance chambers or resonance pipes
    • F02B27/0263—Plenum chambers; Resonance chambers or resonance pipes the plenum chamber and at least one of the intake ducts having a common wall, and the intake ducts wrap partially around the plenum chamber, i.e. snail-type
    • 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
    • F02B27/0278—Multi-way valves
    • 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
    • F02M35/10039—Intake ducts situated partly within or on the plenum chamber housing
    • 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
    • F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
    • F02M35/10301—Flexible, resilient, pivotally or movable parts; Membranes
    • 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
    • F02B27/0294—Actuators or controllers therefor; Diagnosis; Calibration
    • 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
    • F02M35/10347—Moulding, casting 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Characterised By The Charging Evacuation (AREA)

Abstract

In an intake system, especially for a multi-cylinder internal combustion engine, a plurality of displaceable line parts are provided, each of which is capable of connecting a cylinder intake pipe to two different intake ports of different length, assigned to the said intake pipe and opening in a manifold. The line parts are guided with their straight section longitudinally displaceable in a straight section of the cylinder intake pipe. The end face of the curved section adjoining the straight section of the line part is aligned parallel to the axis of displacement, which is the axis of the straight intake pipe section. As a result, the line part can at any time fit flush against a free end of one of the two intake ports assigned to the cylinder intake pipe. The line parts suspended in a common slide are displaced by means of a rocker arm provided with an elongated slot guide.

Description

Die Erfindung betrifft eine Sauganlage einer Brennkraft­ maschine mit einem verschiedenartig positionierbaren Lei­ tungsstück, das ein zum Brennkraftmaschinen-Zylinder füh­ rendes Saugrohr mit unterschiedlich langen, in einem Sam­ melbehälter mündenden Saugkanälen verbindet.The invention relates to an intake system of an internal combustion engine machine with a lei that can be positioned in different ways tion piece that leads to the internal combustion engine cylinder suction pipe with different lengths, in one sam connecting the suction tank.

Bekannt ist eine derartige Sauganlage aus der EP 0 355 960 A2. Mit einer derartigen Sauganlage läßt sich die wirksame Saugrohrlänge verändern und somit an den jewei­ ligen Betriebspunkt der Brennkraftmaschine anpassen. Bei der bekannten Sauganlage ist das verschiedenartig posi­ tionierbare Leitungsstück drehschieberartig ausgebildet, wodurch sich zwar eine kompakte Bauweise ergibt, was je­ doch unerwünschte, da Strömungsverluste hervorrufende Um­ lenkungen des Brennkraftmaschinen-Ansaugluftstromes in der Sauganlage hervorruft.Such a suction system is known from EP 0 355 960 A2. With such a suction system, the change effective intake manifold length and thus on the respective Adjust the operating point of the internal combustion engine. At the well-known suction system is the different posi tionable line piece designed like a rotary slide valve, which results in a compact design, what ever nevertheless undesirable, since flow losses cause Um steering of the internal combustion engine intake air flow in of the suction system.

Eine weiter verbesserte Sauganlage nach dem Oberbegriff des Anspruchs 1 aufzuzeigen, ist demnach Aufgabe der vorliegenden Erfindung. Zur Lösung dieser Aufgabe sind die kennzeichnenden Merk­ male des ersten Anspruchs vorgesehen, vorteilhafte Wei­ terbildungen sind im abhängigen Anspruch aufgelistet. A further improved suction system according to the generic term of claim 1, is accordingly the object of the present invention. To solve this problem, the characteristic notes male provided the first claim, advantageous Wei Further training is listed in the dependent claim.  

Näher erläutert wird die Erfindung anhand eines bevorzug­ ten Ausführungsbeispieles. In der einzigen Figur ist eine erfindungsgemäße Sauganlage in einer vereinfachten Schnittdarstellung gezeigt.The invention is explained in more detail with reference to one th embodiment. In the only figure is one Suction system according to the invention in a simplified Sectional view shown.

Mit der Bezugsziffer 1 ist ein Saugrohr bezeichnet, das sich an einen Einlaßkanal 2 eines Brennkraftmaschinen-Zy­ linderkopfes 3 anschließt und somit zu einem Brennkraft­ maschinen-Zylinder führt. Das Saugrohr 1 weist einen ge­ rade verlaufenden Abschnitt 1′ auf, in den koaxial ein Leitungsstück 4 mit seinem geraden Abschnitt 4a hinein­ ragt, wobei die Wandstärke des Leitungsstückes 4 aus der Innenwand des Saugrohres 1 herausgearbeitet ist, um einen konstanten Strömungsquerschnitt zu erzielen.The reference numeral 1 denotes an intake manifold, which connects to an inlet channel 2 of an internal combustion engine cylinder head 3 and thus leads to an internal combustion engine cylinder. The intake manifold 1 comprises a ge rade extending section 1 ', in the coaxial with a line piece 4 with its straight portion 4a protrudes, wherein the wall thickness of the pipe piece 4 is machined out of the inner wall of the suction tube 1, in order to achieve a constant flow cross section.

An den geraden Abschnitt 4a des Leitungsstückes 4 schließt sich ein gekrümmter Abschnitt 4b an, dessen Stirnfläche 5 parallel zur Achse 6 des geraden Saugrohr- Abschnittes 1′ ausgerichtet ist.At the straight section 4 a of the line piece 4 is followed by a curved section 4 b, the end face 5 is aligned parallel to the axis 6 of the straight intake manifold section 1 '.

Das Leitungsstück 4 ist längs der Achse 6 gemäß Pfeil­ richtung 7 längsverschiebbar. Hierdurch kann das Lei­ tungsstück 4 mit seiner Stirnfläche 5 entweder - wie ge­ zeigt - am freien Ende eines ersten Saugkanales 8 oder am freien Ende eines zweiten Saugkanales 9 bündig zur Anlage gebracht werden. Daher sind auch die freien Enden der Saugkanäle 8, 9 bzw. von deren Kanalwänden parallel zur Verschiebe-Achse 6 ausgerichtet.The line piece 4 is longitudinally displaceable along the axis 6 according to the arrow direction 7 . As a result, the Lei line piece 4 with its end face 5 either - as shown - at the free end of a first suction channel 8 or at the free end of a second suction channel 9 are brought flush to the system. Therefore, the free ends of the suction channels 8 , 9 or of their channel walls are aligned parallel to the displacement axis 6 .

Die beiden Saugkanäle 8, 9 münden in einem Sammelbehälter 10 und sind dabei von unterschiedlicher Länge. In diesem gemeinsamen Sammelbehälter 10 münden selbstverständlich auch die neben den gezeigten Saugkanälen 8, 9 liegenden weiteren identisch angeordneten Saugkanäle weiterer Brennkraftmaschinen-Zylinder. Da in der gezeigten Anord­ nung die beiden Saugkanäle 8, 9 mit ihren freien Enden übereinanderliegen, schließen sich deren Stirnflächen in einer gemeinsamen Ebene liegend selbstverständlich direkt aneinander an, wobei diese gemeinsame Ebene wiederum pa­ rallel zur Verschiebeachse 6 ausgerichtet ist. Bündig auf dieser gemeinsamen Ebene kann dann das Leitungsstück 4 mit seiner Stirnfläche 5 gemäß Pfeilrichtung 7 verschoben werden. Befindet sich dabei das Leitungsstück 4 in der gezeigten Position, so wird der Brennkraftmaschinen-Zy­ linder über das Saugrohr 1 sowie das Leitungsstück 4 und den ersten, kurzen Saugkanal 8 aus dem Sammelbehälter 10 mit Ansaugluft versorgt, während nach einer Verschiebung des Leitungsstückes 4 nach oben die Luftansaugung vom Sammelbehälter 10 über den zweiten Saugkanal 9 sowie das Leitungsstück 4 und das Saugrohr 1 erfolgt.The two suction channels 8 , 9 open into a collecting container 10 and are of different lengths. In this common collecting container 10 , of course, the further identically arranged suction ducts of further internal combustion engine cylinders lying next to the suction ducts 8 , 9 shown also open. Since in the arrangement shown, the two suction channels 8 , 9 lie one above the other with their free ends, their end faces lie of course directly adjacent to one another in a common plane, this common plane in turn being aligned parallel to the displacement axis 6 . The pipe section 4 with its end face 5 can then be moved flush on this common plane in the direction of the arrow 7 . The line piece 4 is in the position shown, the internal combustion engine cylinder is supplied with intake air via the intake manifold 1 and the line piece 4 and the first, short suction channel 8 from the collecting container 10 , while after a displacement of the line piece 4 upwards the air is drawn in from the collecting container 10 via the second suction channel 9 and the line piece 4 and the suction pipe 1 .

Der erste Saugkanal 8 sowie ein Teil des zweiten Saugka­ nales 9 werden gemeinsam mit dem Sammelbehälter 10 sowie dem Saugrohr 1 durch eine Baueinheit 11 gebildet, an die ein weiteres Teilstück 9′ des zweiten Saugkanales 9 sowie ein Zufuhrstutzen 12 zur Versorgung des Sammelbehälter 10 angeflanscht sind. In der gezeigten Darstellung weist die Baueinheit 11 oberhalb des Leitungsstückes 4 eine Monta­ geöffnung 13 auf, die durch einen Deckel 14 verschlossen ist. Über diese Montageöffnung 13 können bei entferntem Deckel 14 die einzelnen Leitungsstücke 4 der nebeneinan­ derliegenden Saugrohre 1 für die einzelnen Brennkraftma­ schinen-Zylinder in die beispielsweise in einem Gießver­ fahren oder einem Spritzgießverfahren hergestellte Bau­ einheit 11 eingesetzt werden.The first suction channel 8 and part of the second Saugka channel 9 are formed together with the collecting container 10 and the suction pipe 1 by a structural unit 11 , to which a further section 9 'of the second suction channel 9 and a feed pipe 12 are flanged to supply the collecting container 10 . In the illustration shown, the structural unit 11 has a mounting opening 13 above the line section 4 , which opening is closed by a cover 14 . About this mounting opening 13 , with the cover 14 removed, the individual line pieces 4 of the adjacent intake manifolds 1 for the individual internal combustion engine cylinders in which, for example, in a Gießver or an injection molding process manufactured construction unit 11 can be used.

Wie bereits erwähnt, sind mehrere Saugrohre 1 und dement­ sprechend mehrere Leitungsstücke 4 für mehrere Brenn­ kraftmaschinen-Zylinder nebeneinander angeordnet. Mecha­ nisch verbunden sind die Leitungsstücke 4 über einen Schlitten 15, in dessen entsprechende, nicht explizit dargestellte Aufnahmeöffnungen die Leitungsstücke 4 über einen geringen Bereich verschiebbar eingehängt sind. Über eine relative Verschiebebewegung zwischen dem Schlitten 15 sowie den Leitungsstücken 4 ist ein Toleranzausgleich möglich, während durch Verschieben des Schlittens 4 sämt­ liche Leitungsstücke 4 verschoben und neu positioniert werden. Der Schlitten 15 weist einen Stützarm 16 mit einer Langloch-Führung 19 auf, in den ein Schwenkhebel 18 mit einem Zapfen 17 eingehängt ist. Durch Verschwenken des Schwenkhebels 18 um seine Schwenkachse 20 kann somit das Leitungsstück 4 gemäß Pfeilrichtung 7 verschoben werden, dabei ist der Schwenkhebel 18 in seinen beiden möglichen Rastpositionen dargestellt. Auch der Schlitten 15 sowie der Schwenkhebel 18 sind innerhalb der Bau­ einheit 11 angeordnet, wozu die auch die Kanäle 8 bil­ dende Wand zwischen den Kanälen 8 entsprechende Ausbuch­ tungen 21 aufweist. Auf diese Weise muß lediglich die ko­ axial zur Schwenkachse 20 verlaufende nicht gezeigte An­ triebswelle zum Verschwenken des bzw. der Schwenkhebel (s) 18 durch die Baueinheit 11 nach außen geführt werden, so daß sich keine gravierenden Abdichtprobleme ergeben.As already mentioned, a plurality of intake pipes 1 and accordingly a plurality of pipe sections 4 for a plurality of internal combustion engine cylinders are arranged side by side. The line pieces 4 are connected mechanically via a slide 15 , in the corresponding, not explicitly shown receiving openings, the line pieces 4 are slidably suspended over a small area. A relative sliding movement between the carriage 15 and the pipe sections 4, a tolerance compensation is possible, while by moving the carriage 4 all different classes of line pieces 4 moved and repositioned. The carriage 15 has a support arm 16 with an elongated hole guide 19 , in which a pivot lever 18 is suspended with a pin 17 . By pivoting the pivot lever 18 about its pivot axis 20 , the line piece 4 can thus be moved in the direction of the arrow 7 , the pivot lever 18 being shown in its two possible latching positions. The carriage 15 and the pivoting lever 18 are arranged within the construction unit 11 , for which purpose the channels 8 bil dende wall between the channels 8 corresponding Ausbuch lines 21 . In this way, only the ko axially extending to the pivot axis 20 , not shown, to the drive shaft for pivoting the or the pivot lever (s) 18 through the assembly 11 out, so that there are no serious sealing problems.

Es ist möglich, den Schlitten 15 und somit die einzelnen Leitungsstücke 4 durch einen einzigen, zentral bzw. mit­ tig angeordneten Schwenkhebel 18 gemäß Pfeilrichtung 7 zu bewegen. Dabei können an den freien Enden des Schlittens 15 nicht gezeigte Federelemente vorgesehen werden, um eine exakte geradlinige Führung zu erzielen. Es ist je­ doch auch möglich, zwei Schwenkhebel 18 anstelle des zen­ tral angeordneten Schwenkhebels an den beiden Enden des Schlittens 15 vorzusehen. Dies sowie weitere Details kön­ nen dabei durchaus abweichend vom gezeigten Ausführungs­ beispiel gestaltet sein, ohne den Inhalt der Pa­ tentansprüche zu verlassen. Stets zeichnet sich die be­ schriebene Sauganlage nicht nur durch eine einfache und kompakte Bauweise aus, sondern erlaubt darüber hinaus auf einfache Weise eine Umschaltung zwischen den verschie­ denen Saugkanälen 8, 9, ohne daß hierdurch - beispiels­ weise hervorgerufen durch Strömungsumlenkungen - unver­ tretbar hohe Strömungsverluste in Kauf genommen werden müssen. Auch indem das Leitungsstück 4 mit seiner Stirn­ fläche 5 an den freien Enden der Kanäle 8 oder 9 jeweils bündig anliegt, ergibt sich ein günstiger Strömungsver­ lauf. Gleiches gilt für den Übergang vom Leitungsstück 4 in das Saugrohr 1, welches vorteilhafterweise im Sinne einer Funktionsvereinigung auch die Führung des Leitungs­ stückes 4 bei dessen Verschiebebewegung gemäß Pfeilrich­ tung 7 übernimmt.It is possible to move the carriage 15 and thus the individual line pieces 4 by a single, centrally or with tig arranged pivot lever 18 according to arrow direction 7 . Spring elements (not shown) can be provided on the free ends of the carriage 15 in order to achieve an exact linear guidance. However, it is also possible to provide two pivot levers 18 instead of the central pivot lever at the two ends of the carriage 15 . This and other details may be designed differently from the example shown without leaving the content of the claims. The suction system described is not only characterized by a simple and compact design, but also allows a simple switch between the various suction channels 8 , 9 , without this - for example caused by flow deflections - unacceptably high flow losses in Purchase must be made. Also by the line piece 4 with its end face 5 at the free ends of the channels 8 or 9 is flush, there is a favorable flow ver run. The same applies to the transition from the line section 4 into the intake manifold 1 , which advantageously also takes over the management of the line section 4 when it is moved according to the direction of the arrow 7 in the sense of a functional union.

Claims (2)

1. Sauganlage einer Brennkraftmaschine mit einem ver­ schiedenartig positionierbaren Leitungsstück (4), das ein zum Brennkraftmaschinen-Zylinder führendes Saugrohr (1) mit unterschiedlich langen, in einem Sammelbehälter (10) mündenden Saugkanälen (8, 9) verbindet, gekennzeichnet durch folgende Merkmale:
  • - das Leitungsstück (4) weist einen geraden Abschnitt (4a) und einen gekrümmten Abschnitt (4b) auf
  • - mit seinem geraden Abschnitt (4a) ragt das Leitungs­ stück (4) in das abschnittsweise ebenfalls gerade verlaufende Saugrohr (1), Saugrohr-Abschnitt (1′) hinein
  • - das Leitungsstück (4) ist längs der Achse (6) des geraden Saugrohr-Abschnittes (1′) verschiebbar
  • - mit seiner parallel zur Verschiebeachse (6) ausge­ richteten Stirnfläche (5) des gekrümmten Abschnittes (4b) liegt das Leitungsstück (4) bündig am freien Ende eines der Saugkanäle (8, 9) an.
1. Suction system of an internal combustion engine with a line piece ( 4 ) which can be positioned in various ways and which connects a suction pipe ( 1 ) leading to the internal combustion engine cylinder with suction ducts ( 8 , 9 ) of different lengths opening into a collecting container ( 10 ), characterized by the following features:
  • - The line piece ( 4 ) has a straight section ( 4 a) and a curved section ( 4 b)
  • - With its straight section ( 4 a), the line piece ( 4 ) protrudes into the intake pipe ( 1 ), intake pipe section ( 1 ') which is also straight in sections
  • - The line piece ( 4 ) is displaceable along the axis ( 6 ) of the straight intake manifold section ( 1 ')
  • - With its parallel to the axis of displacement ( 6 ) aligned end face ( 5 ) of the curved section ( 4 b), the line piece ( 4 ) is flush with the free end of one of the suction channels ( 8 , 9 ).
2. Sauganlage nach Anspruch 1, gekennzeichnet durch zumindest eines der folgenden Merkmale:
  • - mehrere Zylinder-Saugrohre (1) sowie Teile der jedem Saugrohr (1) zugeordneten Saugkanäle (8, 9) bilden eine in einem Gieß- oder Spritzgieß-Verfahren her­ stellbare Baueinheit (11), die eine mit einem Deckel (14) verschlossene Montageöffnung (13) für die jedem Saugrohr (1) zugeordneten, innerhalb der Baueinheit (11) liegenden Leitungsstücke (4) aufweist
  • - die Leitungsstücke (4) sind in einem gemeinsamen, verschiebbaren Schlitten (15) eingehängt
  • - am Schlitten (15) greift über eine Langloch-Führung (19) ein dessen Verschiebebewegung bewirkender Schwenkhebel (18) an.
2. Suction system according to claim 1, characterized by at least one of the following features:
  • - A plurality of cylinder suction pipes ( 1 ) and parts of the suction channels ( 8 , 9 ) assigned to each suction pipe ( 1 ) form an assembly ( 11 ) which can be produced in a casting or injection molding process and which has an assembly opening which is closed by a cover ( 14 ) (13) assigned to each suction pipe (1) having within the unit (11) line sections lying (4)
  • - The line pieces ( 4 ) are suspended in a common, sliding carriage ( 15 )
  • - On the slide ( 15 ) engages via an elongated hole guide ( 19 ) causing its displacement movement swivel lever ( 18 ).
DE4327069A 1993-08-12 1993-08-12 Intake system of an internal combustion engine Withdrawn DE4327069A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4327069A DE4327069A1 (en) 1993-08-12 1993-08-12 Intake system of an internal combustion engine

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Application Number Priority Date Filing Date Title
DE4327069A DE4327069A1 (en) 1993-08-12 1993-08-12 Intake system of an internal combustion engine

Publications (1)

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DE4327069A1 true DE4327069A1 (en) 1995-02-16

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3807159A1 (en) * 1988-03-04 1989-09-14 Bayerische Motoren Werke Ag Intake pipe of an internal combustion engine
DE3843690A1 (en) * 1988-12-23 1990-07-05 Bayerische Motoren Werke Ag Intake system combining a ram pipe system and resonator system for multicylinder internal combustion engines
DE4041200A1 (en) * 1990-12-21 1992-07-02 Porsche Ag AIR INTAKE SYSTEM FOR AN INTERNAL COMBUSTION ENGINE
DE4102453A1 (en) * 1991-01-28 1992-07-30 Bayerische Motoren Werke Ag Intake device for IC engine - has movable elbow pipe for length-adjustable intake conduit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3807159A1 (en) * 1988-03-04 1989-09-14 Bayerische Motoren Werke Ag Intake pipe of an internal combustion engine
DE3843690A1 (en) * 1988-12-23 1990-07-05 Bayerische Motoren Werke Ag Intake system combining a ram pipe system and resonator system for multicylinder internal combustion engines
DE4041200A1 (en) * 1990-12-21 1992-07-02 Porsche Ag AIR INTAKE SYSTEM FOR AN INTERNAL COMBUSTION ENGINE
DE4102453A1 (en) * 1991-01-28 1992-07-30 Bayerische Motoren Werke Ag Intake device for IC engine - has movable elbow pipe for length-adjustable intake conduit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP 62-51722 A.: Patents Abstracts of Japan, M-613,Aug 5,1987,Vol.11,No.238 *

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