DE10024770A1 - Process for operating a vehicle engine comprises mechanically coupling a switching suction pipe and switching valve for a separating sheet - Google Patents

Process for operating a vehicle engine comprises mechanically coupling a switching suction pipe and switching valve for a separating sheet

Info

Publication number
DE10024770A1
DE10024770A1 DE10024770A DE10024770A DE10024770A1 DE 10024770 A1 DE10024770 A1 DE 10024770A1 DE 10024770 A DE10024770 A DE 10024770A DE 10024770 A DE10024770 A DE 10024770A DE 10024770 A1 DE10024770 A1 DE 10024770A1
Authority
DE
Germany
Prior art keywords
switching
suction path
flap
internal combustion
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Withdrawn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
DE10024770A
Other languages
German (de)
Inventor
Leo Spiegel
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.)
Volkswagen AG
Original Assignee
Volkswagen 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 Volkswagen AG filed Critical Volkswagen AG
Priority to DE10024770A priority Critical patent/DE10024770A1/en
Publication of DE10024770A1 publication Critical patent/DE10024770A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4235—Shape or arrangement of intake or exhaust channels in cylinder heads of intake channels
    • F02F1/4242—Shape or arrangement of intake or exhaust channels in cylinder heads of intake channels with a partition wall inside the channel
    • 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
    • F02B27/005—Oscillating pipes with charging achieved by arrangement, dimensions or shapes of intakes pipes or chambers; Ram air pipes
    • F02B27/006—Oscillating pipes with charging achieved by arrangement, dimensions or shapes of intakes pipes or chambers; Ram air pipes of intake runners
    • 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
    • F02B27/0247—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
    • F02B31/00—Modifying induction systems for imparting a rotation to the charge in the cylinder
    • F02B31/04—Modifying induction systems for imparting a rotation to the charge in the cylinder by means within the induction channel, e.g. deflectors
    • F02B31/06—Movable means, e.g. butterfly valves
    • 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
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/48—Tumble motion in gas movement in cylinder
    • 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

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  • 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

Process for operating an I.C. engine comprises mechanically coupling a switching suction pipe and switching valve for a separating sheet. An Independent claim is also included for an I.C. engine comprising a switching suction pipe (26) which changes the length of a suction path (28, 30), and a separating sheet (18) arranged in an intake path (14) with a switching valve (32) which opens or closes the channel (22) formed by the separating sheet. A single switching mechanism is provided for operating the suction pipe and the valve.

Description

Die Erfindung betrifft eine Brennkraftmaschine sowie Verfahren zum Betreiben dieser, gemäß dem jeweiligen Oberbegriff des Anspruchs 1 bzw. 3.The invention relates to an internal combustion engine and a method for operating it, 3. according to the respective preamble of claim 1 or 3.

Bei herkömmlichen Brennkraftmaschinen ist es bekannt, mittels eines Trennbleches in einem Ansaugkanal im Zylinderkopf gezielt in bestimmten Betriebssituationen eine in einen jeweiligen Zylinder gerichtete Tumbleströmung zu erzeugen. Hierzu wird eine mit dem Trennblech zusammenwirkende Schaltklappe geöffnet oder geschlossen. Ferner sind Schaltsaugrohre für Brennkraftmaschinen bekannt, welche einen Saugweg für der Brennkraftmaschine zugeführte Luft gezielt verändert, so daß beispielsweise in Abhängigkeit von einer montanen Betriebssituation der Brennkraftmaschine ein kurzer Saugweg wahlweise geöffnet oder geschlossen wird, wogegen ein langer Saugweg permanent offen bleibt. Der Tumbleschaltung und der Längenschaltung sind jeweils getrennte Betätigungsmechanismen zugeordnet.In conventional internal combustion engines it is known to use a separating plate in an intake duct in the cylinder head specifically in certain operating situations to generate a respective cylinder directed tumble flow. For this, one with the switching flap interacting with the separating plate is opened or closed. Further Switching suction pipes for internal combustion engines are known which have a suction path for the Air supplied to the internal combustion engine is changed in a targeted manner so that, for example, in Depending on a montane operating situation of the internal combustion engine a short Suction path is either opened or closed, whereas a long suction path remains permanently open. The tumble switch and the length switch are each assigned separate actuation mechanisms.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Verfahren sowie eine Brennkraftmaschine der obengenannten Art dahingehend zu verbessern, daß eine Brennkraftmaschine mit vereinfachter Montage, mit reduzierte Komplexität und verringerten Kosten zur Verfügung steht.The present invention has for its object a method and a To improve internal combustion engine of the type mentioned above in that a Internal combustion engine with simplified assembly, with reduced complexity and reduced cost is available.

Diese Aufgabe wird erfindungsgemäß durch ein Verfahren der o. g. Art mit den in Anspruch 1 gekennzeichneten Merkmalen und durch eine Brennkraftmaschine der o. g. Art mit den in Anspruch 3 gekennzeichneten Merkmalen gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind in den abhängigen Ansprüchen angegeben.This object is achieved according to the invention by a method of the above. Kind of with the in Characterized features of claim 1 and by an internal combustion engine of the above. Type solved with the features characterized in claim 3. advantageous Embodiments of the invention are specified in the dependent claims.

Dazu ist es bei einem Verfahren der o. g. Art erfindungsgemäß vorgesehen, daß ein Schaltsaugrohr zum Schalten einer Saugrohrlänge und eine Schaltklappe für ein in einem Ansaugkanal angeordnetes Trennblech zum wahlweise erzeugen einer Tumbleströmung miteinander mechanisch zwangsgekoppelt geschaltet werden. For this, it is in a method of the above. Art provided according to the invention that a Switching intake manifold for switching an intake manifold length and a switching flap for an in an intake duct arranged to selectively generate one Tumble flow can be mechanically positively coupled to each other.  

Dies hat den Vorteil, daß durch die Kombination von Längenschaltung und Tumbleschaltung eine Brennkraftmaschine bzgl. einer Steuerung von Schaltsaugrohr und Schaltklappe vereinfacht ist.This has the advantage that the combination of length circuit and Tumbleschaltung an internal combustion engine with respect to a control of switching intake manifold and switching flap is simplified.

In einer bevorzugten Ausführungsform des Verfahrens wird mit dem Schaltsaugrohr ein kurzer Saugweg wahlweise geöffnet oder geschlossen, wobei die mechanisch zwangsgekoppelte Schaltung derart durchgeführt wird, daß bei geschlossenem kurzen Saugweg die Schaltklappe geschlossen wird, so daß eine höhere Tumbleströmung erzeugt wird und bei geöffnetem kurzen Saugweg die Schaltklappe geöffnet wird, so daß eine niedrigere Tumbleströmung erzeugt wird.In a preferred embodiment of the method, the switching intake manifold is used short suction path either open or closed, the mechanically positively coupled circuit is performed such that when the short is closed Suction path the switching flap is closed, so that a higher tumble flow is generated and the switching flap is opened with the short suction path open, so that a lower tumble flow is generated.

Ferner ist es bei einer Brennkraftmaschine der o. g. Art erfindungsgemäß vorgesehen, daß ein einziger Schaltmechanismus vorgesehen ist, welcher sowohl das Schaltsaugrohr als auch die Schaltklappe betätigt.Furthermore, it is in an internal combustion engine of the above. Provided according to the invention, that a single switching mechanism is provided, which both the switching suction tube as well as the switching flap operated.

Dies hat den Vorteil, daß durch die Kombination von Längenschaltung und Tumbleschaltung eine Brennkraftmaschine bzgl. einer Steuerung von Schaltsaugrohr und Schaltklappe vereinfacht ist.This has the advantage that the combination of length circuit and Tumbleschaltung an internal combustion engine with respect to a control of switching intake manifold and switching flap is simplified.

In einer bevorzugten Ausführungsform der Brennkraftmaschine öffnet bzw. schließt das Schaltsaugrohr einen kurzen Saugweg wahlweise, wobei der Schaltmechanismus derart ausgebildet ist, daß die Schaltklappe geschlossen ist, wenn der kurze Saugweg geschlossen ist, bzw. die Schaltklappe offen ist, wenn der kurze Saugweg geöffnet ist. Hierbei trennt in besonders bevorzugter Weise in dem Schaltsaugrohr eine Trennwand einen kurzen Saugweg von einem langen Saugweg derart, daß der kurze Saugweg in den mittels der Schaltklappe geschalteten Kanal des Trennbleches mündet.In a preferred embodiment of the internal combustion engine, this opens or closes Switching intake manifold a short suction path optionally, the switching mechanism such is formed that the switching flap is closed when the short suction path is closed, or the switching flap is open when the short suction path is open. In this case, a partition wall separates in a particularly preferred manner in the switching intake manifold a short suction path from a long suction path such that the short suction path in the channel of the partition plate switched by means of the switching flap opens.

Weitere Merkmale, Vorteile und vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den abhängigen Ansprüchen, sowie aus der nachstehenden Beschreibung der Erfindung anhand der beigefügten Zeichnung. Diese zeigt in der einzigen Figur eine Schnittansicht eines Teils einer bevorzugten Ausführungsform einer erfindungsgemäßen Brennkraftmaschine.Further features, advantages and advantageous configurations of the invention result from the dependent claims, as well as from the following description of the Invention with reference to the accompanying drawings. This shows one in the single figure Sectional view of part of a preferred embodiment of an inventive Internal combustion engine.

Die aus der einzigen Figur ersichtliche Brennkraftmaschine umfaßt einen Zylinderkopf 10, welcher einen Brennraum 12 begrenzt und einen in den Brennraum mündenden Ansaugkanal 14 sowie einen Auslaßkanal 16 aufweist. In dem Ansaugkanal 14 ist ein Trennblech 18 angeordnet, welches den Ansaugkanal in einen ersten Kanal 20 und einen zweiten Kanal 22 trennt. Über einen Zylinderkopfflansch 24 ist ein Schaltsaugrohr 26 mit dem Zylinderkopf 10 verbunden. Das Schaltsaugrohr 26 weist einen permanent offenen langen Saugweg 28 und einen wahlweise verschließbaren kurzen Saugweg 30 auf, welche durch eine Trennwand 34 voneinander separiert sind. Der lange Saugweg 28 mündet dabei in den ersten Kanal 20 des Trennbleches 18 und der kurze Saugweg 30 mündet in den zweiten Kanal 22 des Trennbleches 18.The internal combustion engine shown in the single figure comprises a cylinder head 10 which delimits a combustion chamber 12 and has an intake duct 14 opening into the combustion chamber and an exhaust duct 16 . A separating plate 18 is arranged in the intake duct 14 and separates the intake duct into a first duct 20 and a second duct 22 . A switching suction pipe 26 is connected to the cylinder head 10 via a cylinder head flange 24 . The switching suction tube 26 has a permanently open long suction path 28 and an optionally closable short suction path 30 , which are separated from one another by a partition wall 34 . The long suction path 28 opens into the first channel 20 of the partition plate 18 and the short suction path 30 opens into the second channel 22 of the partition plate 18 .

Auf einer Schaltwelle 36 des Zylinderkopfflansches 24 ist eine Schaltklappe 32 derart schwenkbar gelagert, daß die Schaltklappe 32 den zweiten Kanal 22 des Trennbleches 18 wahlweise öffnet, gestrichelt dargestellt, oder verschließt, in durchgezogener Linie dargestellt. Bei geschlossener Schaltklappe 32, d. h. bei geschlossenem zweiten Kanal 22, strömt Luft über den ersten Kanal 20 unter Ausbildung einer Tumbleströmung in den Brennraum 12. Bei geöffneter Schaltklappe 32 strömt Luft sowohl über den ersten Kanal 20 als auch den zweiten Kanal 22 in den Brennraum 12, wobei sich keine Tumbleströmung ausbildet.On a switching shaft 36 of the cylinder head flange 24 , a switching flap 32 is pivotally mounted such that the switching flap 32 either opens the second channel 22 of the separating plate 18 , shown in broken lines, or closes, in a solid line. When the switching flap 32 is closed, that is to say when the second duct 22 is closed, air flows into the combustion chamber 12 via the first duct 20 , forming a tumble flow. When the switching flap 32 is open, air flows into the combustion chamber 12 both via the first duct 20 and the second duct 22 , with no tumble flow forming.

Erfindungsgemäß ist nun ein einziger Schaltmechanismus vorgesehen, welcher sowohl das Schaltsaugrohr als auch die Schaltklappe betätigt. Mit anderen Worten werden das Schaltsaugrohr und die Schaltklappe miteinander mechanisch zwangsgekoppelt geschaltet. Hierbei ist die Zwangskopplung derart ausgebildet, daß bei offener Schaltklappe 32 auch der kurze Saugweg 30 offen ist, wogegen bei geschlossener Schaltklappe 32 auch der kurze Saugweg 30 geschlossen ist. Hierdurch ist nur ein einziger Schaltmechanismus für Schaltklappe und Schaltsaugrohr erforderlich, wodurch sich eine Komplexität und Bauteilevielfalt der Brennkraftmaschine entsprechend reduziert. Im vorliegenden Ausführungsbeispiel schaltet daher die einzige Schaltklappe 32 sowohl die Saugrohrlänge über Saugweg 30 bzw. 28 um wie auch die Tumbleströmung über den ersten Kanal 20.According to the invention, a single switching mechanism is now provided which actuates both the switching suction pipe and the switching flap. In other words, the switching intake manifold and the switching flap are mechanically positively coupled to one another. Here, the forced coupling is designed such that when the switching flap 32 is open, the short suction path 30 is also open, whereas when the switching flap 32 is closed, the short suction path 30 is also closed. As a result, only a single switching mechanism for the switching flap and switching intake manifold is required, as a result of which the complexity and variety of components of the internal combustion engine are reduced accordingly. In the present exemplary embodiment, therefore, the single switching flap 32 switches over both the suction pipe length via suction path 30 or 28 and the tumble flow via the first channel 20 .

Claims (6)

1. Verfahren zum Betreiben einer Brennkraftmaschine, insbesondere eines Kraftfahrzeuges, dadurch gekennzeichnet, daß ein Schaltsaugrohr zum Schalten einer Saugrohrlänge und eine Schaltklappe für ein in einem Ansaugkanal angeordnetes Trennblech zum wahlweise erzeugen einer Tumbleströmung miteinander mechanisch zwangsgekoppelt geschaltet werden.1. A method of operating an internal combustion engine, in particular a motor vehicle, characterized in that a switching intake manifold for switching a length of intake manifold and a switching flap for a separator plate arranged in an intake duct for optionally generating a tumble flow are mechanically coupled to one another. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß mit dem Schaltsaugrohr ein kurzer Saugweg wahlweise geöffnet oder geschlossen wird, wobei die mechanisch zwangsgekoppelte Schaltung derart durchgeführt wird, daß bei geschlossenem kurzen Saugweg die Schaltklappe geschlossen wird, so daß eine höhere Tumbleströmung erzeugt wird und bei geöffnetem kurzen Saugweg die Schaltklappe geöffnet wird, so daß eine niedrigere Tumbleströmung erzeugt wird.2. The method according to claim 1, characterized in that with the switching suction tube a short suction path is either opened or closed, the mechanically positively coupled circuit is carried out such that at closed short suction path the switching flap is closed, so that a higher tumble flow is generated and when the short suction path is open the Switch flap is opened so that a lower tumble flow is generated. 3. Brennkraftmaschine, insbesondere eines Kraftfahrzeuges, mit einem Schaltsaugrohr (26), welches einen Saugweg (28, 30) in seiner Länge verändert, sowie mit einem im Ansaugweg (14) angeordneten Trennblech (18) mit einer Schaltklappe (32), welche wahlweise einen von dem Trennblech (18) ausgebildeten Kanal (22) im Ansaugkanal (14) öffnet oder schließt, dadurch gekennzeichnet, daß ein einziger Schaltmechanismus vorgesehen ist, welcher sowohl das Schaltsaugrohr (26) als auch die Schaltklappe (32) betätigt.3. Internal combustion engine, in particular a motor vehicle, with a switching intake manifold ( 26 ) which changes the length of a suction path ( 28 , 30 ), and with a separating plate ( 18 ) arranged in the suction path ( 14 ) with a switching flap ( 32 ), which is optional opens or closes a channel ( 22 ) formed by the separating plate ( 18 ) in the intake channel ( 14 ), characterized in that a single switching mechanism is provided which actuates both the switching suction tube ( 26 ) and the switching flap ( 32 ). 4. Brennkraftmaschine nach Anspruch 3, dadurch gekennzeichnet, daß das Schaltsaugrohr (26) einen kurzen Saugweg (30) wahlweise öffnet bzw. schließt und der Schaltmechanismus derart ausgebildet ist, daß die Schaltklappe (32) geschlossen ist, wenn der kurze Saugweg (30) geschlossen ist, bzw. die Schaltklappe (32) offen ist, wenn der kurze Saugweg (30) geöffnet ist. 4. Internal combustion engine according to claim 3, characterized in that the switching suction tube ( 26 ) optionally opens or closes a short suction path ( 30 ) and the switching mechanism is designed such that the switching flap ( 32 ) is closed when the short suction path ( 30 ) is closed or the switching flap ( 32 ) is open when the short suction path ( 30 ) is open. 5. Brennkraftmaschine nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß in dem Schaltsaugrohr (26) eine Trennwand (34) einen kurzen Saugweg (30) von einem langen Saugweg (28) derart trennt, daß der kurze Saugweg (30) in den mittels der Schaltklappe (32) geschalteten Kanal (22) des Trennbleches (18) mündet.5. Internal combustion engine according to claim 3 or 4, characterized in that in the switching intake pipe ( 26 ) a partition ( 34 ) separates a short suction path ( 30 ) from a long suction path ( 28 ) such that the short suction path ( 30 ) in the means the switching flap ( 32 ) switched channel ( 22 ) of the partition plate ( 18 ) opens. 6. Brennkraftmaschine nach einem oder mehreren der Ansprüche 3 bis 5, dadurch gekennzeichnet, daß der Schaltmechanismus eine einzige Schaltklappe (32) aufweist.6. Internal combustion engine according to one or more of claims 3 to 5, characterized in that the switching mechanism has a single switching flap ( 32 ).
DE10024770A 2000-05-19 2000-05-19 Process for operating a vehicle engine comprises mechanically coupling a switching suction pipe and switching valve for a separating sheet Withdrawn DE10024770A1 (en)

Priority Applications (1)

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DE10024770A DE10024770A1 (en) 2000-05-19 2000-05-19 Process for operating a vehicle engine comprises mechanically coupling a switching suction pipe and switching valve for a separating sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10024770A DE10024770A1 (en) 2000-05-19 2000-05-19 Process for operating a vehicle engine comprises mechanically coupling a switching suction pipe and switching valve for a separating sheet

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DE10024770A1 true DE10024770A1 (en) 2002-01-17

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009022862A1 (en) 2009-05-27 2010-12-02 Montaplast Gmbh Air-intake duct system for internal combustion engine, has two switching flaps that are synchronously switched, where flaps open and close longer tract and shorter tract, respectively
US20210381423A1 (en) * 2020-06-03 2021-12-09 Subaru Corporation Engine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9319545U1 (en) * 1993-12-20 1995-04-20 FEV Motorentechnik GmbH & Co. KG, 52078 Aachen Spark-ignited piston engine with direction-changing inflow of the fuel-air mixture
DE19545934A1 (en) * 1994-12-12 1996-06-13 Gen Motors Corp Gate valve inlet system for an internal combustion engine
EP0741243A2 (en) * 1995-05-04 1996-11-06 Ford Motor Company Limited Internal combustion engine intake system
EP0867610A2 (en) * 1997-03-28 1998-09-30 Hidaka Engineering Co., Ltd. Air intake system for internal combustion engine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9319545U1 (en) * 1993-12-20 1995-04-20 FEV Motorentechnik GmbH & Co. KG, 52078 Aachen Spark-ignited piston engine with direction-changing inflow of the fuel-air mixture
DE19545934A1 (en) * 1994-12-12 1996-06-13 Gen Motors Corp Gate valve inlet system for an internal combustion engine
EP0741243A2 (en) * 1995-05-04 1996-11-06 Ford Motor Company Limited Internal combustion engine intake system
EP0867610A2 (en) * 1997-03-28 1998-09-30 Hidaka Engineering Co., Ltd. Air intake system for internal combustion engine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009022862A1 (en) 2009-05-27 2010-12-02 Montaplast Gmbh Air-intake duct system for internal combustion engine, has two switching flaps that are synchronously switched, where flaps open and close longer tract and shorter tract, respectively
US20210381423A1 (en) * 2020-06-03 2021-12-09 Subaru Corporation Engine
US11560828B2 (en) * 2020-06-03 2023-01-24 Subaru Corporation Engine

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