DE4040598A1 - Aspiration unit for multicylinder IC engine - has suction pipes per cylinder of differing lengths - Google Patents

Aspiration unit for multicylinder IC engine - has suction pipes per cylinder of differing lengths

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Publication number
DE4040598A1
DE4040598A1 DE4040598A DE4040598A DE4040598A1 DE 4040598 A1 DE4040598 A1 DE 4040598A1 DE 4040598 A DE4040598 A DE 4040598A DE 4040598 A DE4040598 A DE 4040598A DE 4040598 A1 DE4040598 A1 DE 4040598A1
Authority
DE
Germany
Prior art keywords
intake
suction
intake manifold
suction pipes
pipes
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Withdrawn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
DE4040598A
Other languages
German (de)
Inventor
Gerd Dipl Ing Ohrnberger
Jiri Dipl Ing Stiller
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.)
Audi AG
Original Assignee
Audi 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 Audi AG filed Critical Audi AG
Priority to DE4040598A priority Critical patent/DE4040598A1/en
Publication of DE4040598A1 publication Critical patent/DE4040598A1/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Withdrawn legal-status Critical Current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
    • 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
    • F02D9/12—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having slidably-mounted valve members; having valve members movable longitudinally of conduit
    • F02D9/16—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having slidably-mounted valve members; having valve members movable longitudinally of conduit the members being rotatable
    • 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
    • F02B27/0252—Multiple plenum chambers or plenum chambers having inner separation walls, e.g. comprising valves for the same group of cylinders
    • 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
    • F02B27/0284—Rotary slide 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
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B2075/1804—Number of cylinders
    • F02B2075/1816—Number of cylinders four
    • 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
    • F02B75/20—Multi-cylinder engines with cylinders all in one line
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
    • F05C2225/08—Thermoplastics
    • 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

The first and second suction pipes (1,2) of varying lengths per cylinder evolve from first and second suction distributors (3,6), coming together shortly before the inlet valve. The shorter second suction pipe (2) is controlled by a cut-off component (9) which is closed in the lower load range and open in the upper such range. In the first suction distributor (3) issues a suction conduit (4) with a throttle valve (5). The second suction distributor (6) is connected to the first (3), and the second suction pipe (2) evolves from a partly circular curved wall (8) of the second suction distirbutor. This wall works in conjunction with a correspondingly curved wall (10) of a rotary diaphragm (9) forming a cut-off component for all second suction pipes (2). USE - As an aspiration arrangement for a multi-cylinder internal combustion engine.

Description

Die Erfindung bezieht sich auf eine Ansauganlage für eine Mehrzylinder-Brennkraftmaschine entsprechend dem Oberbegriff des Anspruchs 1.The invention relates to an intake system for a multi-cylinder internal combustion engine corresponding to that Preamble of claim 1.

Bei einer bekannten Ansauganlage dieser Art (DE A 37 11 859) mündet in den den kürzeren Saugrohren zuge­ ordneten Ansaugverteiler eine eigene Ansaugleitung, und es ist in jedem kürzeren Saugrohr ein Absperrorgan in Form einer Verschlußklappe angeordnet. Diese bekannte Ausführung ist verhältnismäßig aufwendig, da für den zweiten Ansaugverteiler eine eigene Ansaugleitung und für jedes zweite Saugrohr eine eigene Verschlußklappe vorgesehen ist. Diese Verschlußklappen müssen einzeln gelagert und justiert und zur gemeinsamen Betätigung miteinander verbunden werden.In a known intake system of this type (DE A 37 11 859) flows into the shorter suction pipes arranged intake manifolds their own intake line, and there is a shut-off device in every shorter intake manifold Formed a closure flap. This well-known Execution is relatively expensive because for the second intake manifold its own intake line and a separate flap for every second intake manifold is provided. These flaps must be individually stored and adjusted and for joint operation be connected to each other.

Der Erfindung liegt die Aufgabe zugrunde, eine Ansaug­ anlage der gattungsgemäßen Art zu schaffen, die sich durch einen wesentlich einfacheren Aufbau auszeichnet.The invention has for its object a suction to create plant of the generic type, which itself characterized by a much simpler structure.

Diese Aufgabe wird erfindungsgemäß durch die im Kenn­ zeichen des Anspruchs 1 angegebenen Merkmale gelöst.This object is achieved by the in the Kenn Character of claim 1 specified features solved.

Bei dem erfindungsgemäßen Vorschlag entfällt eine eigene Ansaugleitung für die zweiten Saugrohre und es erfolgt das Absperren bzw. Freigeben der zweiten Saugrohre mittels eines einzigen Absperrorgans, wobei durch die Ausbildung des Absperrorgans als Drehblende mit teil­ kreisförmig gekrümmter Wand der Querschnitt des zweiten Ansaugverteilers fast beliebig gewählt werden kann, da nur seine mit der Drehblende zusammenwirkende Wand, von welcher die zweiten Saugrohrstränge ausgehen, eine ent­ sprechende Krümmung haben muß. Dies erleichtert die Un­ terbringung des zweiten Ansaugverteilers beträchtlich. Die Drehblende, die nur an ihren Enden gelagert zu sein braucht, kann sehr leicht ausgeführt werden, da die Breite ihrer gekrümmten Wand nur geringfügig größer zu sein braucht als der Durchmesser der kurzen Saugrohre. Zum Gewichtsausgleich dieser Wand können auf der der Drehachse der Drehblende gegenüberliegenden Seite Ausgleichsmassen vorgesehen sein, die als parallel zu der gekrümmten Wand verlaufende Stäbe ausgebildet sein und zur Versteifung der Drehblende beitragen können.In the proposal according to the invention there is no separate one Intake pipe for the second suction pipes and it is done shutting off or releasing the second suction pipes by means of a single shut-off device, whereby through the Training the shut-off device as a rotary shutter with part circular curved wall the cross section of the second Intake manifold can be chosen almost arbitrarily, because only its wall, which interacts with the rotating screen, from which the second suction pipe strands run out, one ent must have speaking curvature. This makes the Un easier provision of the second intake manifold considerably. The rotating bezel that is only to be stored at its ends needs, can be carried out very easily since the Width of their curved wall only slightly larger needs to be than the diameter of the short suction pipes. To balance this wall, you can use the  opposite side of the axis of rotation of the rotary screen Compensating masses can be provided that are parallel to the curved wall extending rods can be formed and can contribute to the stiffening of the rotating screen.

Eine besonders kostengünstige und raumsparende Anordnung ergibt sich, wenn alle Saugrohre und die beiden Ansaug­ verteiler sowie deren Verbindungsleitung in einem ein­ zigen Bauteil integriert sind, in welchem die beiden Saugrohre jedes Zylinders übereinander und die den ein­ zelnen Zylindern zugeordneten Saugrohre nebeneinander angeordnet sind.A particularly inexpensive and space-saving arrangement results when all suction pipes and the two intake distributor and their connecting line in one component are integrated, in which the two Intake pipes of each cylinder one above the other and the one suction cylinders assigned to individual cylinders side by side are arranged.

Ein Ausführungsbeispiel der Erfindung wird im folgenden unter Bezugnahme auf die Zeichnungen beschrieben. Es zeigt:An embodiment of the invention is as follows described with reference to the drawings. It shows:

Fig. 1 einen Längsschnitt einer erfindungsgemäßen Ansauganlage, und Fig. 1 shows a longitudinal section of an intake system according to the invention, and

Fig. 2 einen Schnitt entlang Linie 2-2 in Fig. 1 in perspektivischer und auseinandergezogener Darstellung. Fig. 2 shows a section along line 2-2 in Fig. 1 in a perspective and exploded view.

Die dargestellte Ansauganlage für eine Mehrzylinder- Brennkraftmaschine weist pro Zylinder ein langes erstes Saugrohr 1 und ein kurzes zweites Saugrohr 2 auf, die sich kurz vor dem Einlaßkanal im nicht dargestellten Zylinderkopf vereinigen. Die langen Saugrohre 1 gehen von einem ersten Ansaugverteiler 3 aus, in den eine Ansaugleitung 4 mit einem Leistungsregelorgan in Form einer Drosselklappe 5 mündet. Die kurzen Saugrohre 2 gehen von einem zweiten Ansaugverteiler 6 aus, der mit dem ersten Ansaugverteiler 3 durch eine Leitung 7 in Verbindung steht. Die Wand 8 des zweiten Ansaugvertei­ lers 6, von welcher die kurzen Saugrohre 2 ausgehen, ist teilkreisförmig gekrümmt. In dem zweiten Ansaugverteiler 6 ist eine Drehblende 9 angeordnet, die eine entspre­ chend teilkreisförmig gekrümmte Wand 10 aufweist, welche sich im wesentlichen über die ganze Länge des zweiten Ansaugverteilers 6 erstreckt und die Mündungen aller kurzen Saugrohre 2 gleichzeitig absperrt oder freigibt. Die Wand 10 ist einstückig mit Stirnwänden 11, von denen sich Drehzapfen 12, 12′ nach außen erstrecken, mit denen die Drehblende 9 in entsprechenden Lagern 13 in den Stirnwänden 14, 14′ des zweiten Ansaugverteilers 6 gelagert ist, von denen die Wand 14′ als abnehmbarer Deckel ausgebildet ist. An dem einen Drehzapfen 12′ ist ein Hebel 15 befestigt, an dem ein Gestänge 16 angreift, das beispielsweise durch eine Unterdruckdose 17 verscho­ ben werden kann, um die Drehblende 9 in Abhängigkeit von Betriebsparametern entweder in ihre geschlossene oder in ihre offene Stellung zu bringen. Die Breite der gekrümm­ ten Wand 10 braucht nur geringfügig größer zu sein als der Innendurchmesser der kurzen Saugrohre 2. Dadurch erhält die Drehblende 9 ein geringes Gewicht. Zur Er­ höhung der Stabilität können auf der der gekrümmten Wand gegenüberliegenden Seite der Drehachse parallel zu die­ ser verlaufende Stäbe 18 vorgesehen werden, welche die Stirnwände 11 miteinander verbinden und gleichzeitig zum Ausgleich der Masse der gekrümmten Wand 10 dienen.The intake system shown for a multi-cylinder internal combustion engine has a long first intake pipe 1 and a short second intake pipe 2 per cylinder, which unite shortly before the intake port in the cylinder head, not shown. The long intake pipes 1 start from a first intake manifold 3 , into which an intake line 4 opens with a power control element in the form of a throttle valve 5 . The short intake pipes 2 start from a second intake manifold 6 , which is connected to the first intake manifold 3 by a line 7 . The wall 8 of the second Ansaugvertei lers 6 , from which the short suction pipes 2 extend, is curved in a part-circle. In the second intake manifold 6 , a rotary orifice 9 is arranged, which accordingly has a partially circular wall 10 which extends essentially over the entire length of the second intake manifold 6 and simultaneously blocks or releases the orifices of all short suction pipes 2 . The wall 10 is in one piece with end walls 11 , of which pivots 12 , 12 'extend outwards, with which the rotary orifice 9 is mounted in corresponding bearings 13 in the end walls 14 , 14 ' of the second intake manifold 6 , of which the wall 14 ' is designed as a removable cover. At one pivot 12 ', a lever 15 is attached to which a linkage 16 engages, which can be moved, for example, by a vacuum can 17 to bring the rotary orifice 9 into either its closed or its open position, depending on operating parameters. The width of the curved wall 10 need only be slightly larger than the inside diameter of the short suction pipes 2 . This gives the rotary screen 9 a low weight. To increase stability, he can be provided on the opposite side of the axis of rotation of the curved wall parallel to the water extending rods 18 , which connect the end walls 11 to each other and at the same time serve to balance the mass of the curved wall 10 .

Da nur die mit der gekrümmten Wand 10 der Drehblende 9 zusammenwirkende Wand 8 des zweiten Ansaugverteilers 6 eine dieser Wand entsprechende Krümmung über den Dreh­ bereich der Drehblende 9 aufweisen muß, kann die Quer­ schnittsform des zweiten Ansaugverteilers 6 so gewählt werden, daß sich dieser an die langen Saugrohre an­ schmiegt, wie dies aus Fig. 1 ersichtlich ist. Dadurch wird der Platzbedarf gering gehalten. Since only one of these wall corresponding with the curved wall 10 of the rotary shutter 9 cooperating wall 8 of the second intake manifold 6 of curvature of the rotary shutter is required to have 9 divisional the rotation, the cross-sectional shape of the second intake manifold 6 is selected so that this to the long suction pipes nestles on, as can be seen from Fig. 1. This keeps the space requirement low.

Vorzugsweise besteht die gesamte Ansauganlage mit Aus­ nahme der Drehblende 9, des Abschlußdeckels 14′ des zweiten Ansaugverteilers 6 und der Ansaugleitung 4 aus einem Stück aus Leichtmetall oder Kunststoff.Preferably, the entire intake system with the exception of the rotary orifice 9 , the end cover 14 'of the second intake manifold 6 and the intake line 4 from a piece of light metal or plastic.

Claims (6)

1. Ansauganlage für eine Mehrzylinder-Brennkraft­ maschine, die pro Zylinder erste und zweite Saugrohre (1, 2) unterschiedlicher Länge aufweist, welche jeweils von einem eigenen ersten bzw. zweiten Ansaugverteiler (3, 6) ausgehen und kurz vor dem Einlaßventil zusammengeführt sind, und von denen das kürzere, zweite Saugrohr (2) von einem Absperrorgan (9) beherrscht ist, das im unteren Lastbereich ge­ schlossen und im oberen Lastbereich geöffnet ist, wobei in den ersten Ansaugverteiler (3) eine An­ saugleitung (4) mit einer Drosselklappe (5) mündet, dadurch gekennzeichnet, daß der zweite Ansaugverteiler (6) mit dem ersten Ansaugver­ teiler (3) in Verbindung steht, und daß die zweiten Saugrohre (2) von einer teilkreisförmig gekrümmten Wand (8) des zweiten Ansaugverteilers (6) ausgehen, die mit einer entsprechend gekrümmten Wand (10) einer in diesem Ansaugverteiler (6) angeordneten, das Absperrorgan für alle zweiten Saugrohre (2) bildenden Drehblende (9) zusammenwirkt. 1. Intake system for a multi-cylinder internal combustion engine, the first and second intake pipes ( 1 , 2 ) of different lengths per cylinder, each of which emanate from its own first and second intake manifold ( 3 , 6 ) and are brought together shortly before the inlet valve, and of which the shorter, second intake manifold ( 2 ) is controlled by a shut-off device ( 9 ) which is closed in the lower load area and opened in the upper load area, with a suction line ( 4 ) with a throttle valve in the first intake manifold ( 3 ) ( 5 ) opens, characterized in that the second intake manifold ( 6 ) communicates with the first intake manifold ( 3 ), and that the second intake pipes ( 2 ) start from a partially circular wall ( 8 ) of the second intake manifold ( 6 ) , which with a correspondingly curved wall ( 10 ) in this intake manifold ( 6 ) arranged, the shut-off device for all second suction pipes ( 2 ) forming rotary screen e ( 9 ) interacts. 2. Ansauganlage nach Anspruch 1, daß sich die gekrümmte Wand (10) der Drehblende (9) über die ganze Länge des zweiten Ansaugverteilers (6) erstreckt.2. Intake system according to claim 1, that the curved wall ( 10 ) of the rotary orifice ( 9 ) extends over the entire length of the second intake manifold ( 6 ). 3. Ansauganlage nach Anspruch 1, dadurch gekennzeichnet, daß die Breite der gekrümmten Wand (10) der Dreh­ blende (9) nur geringfügig größer ist als der Durch­ messer der zweiten Saugrohre (2).3. Intake system according to claim 1, characterized in that the width of the curved wall ( 10 ) of the rotary aperture ( 9 ) is only slightly larger than the diameter of the second suction pipes ( 2 ). 4. Ansauganlage nach Anspruch 3, dadurch gekennzeichnet, daß auf der der gekrümmten Wand (10) gegenüberliegen­ den Seite der Drehachse der Drehblende (9) eine Ausgleichsgewicht (18) angebracht ist.4. Intake system according to claim 3, characterized in that on the the curved wall ( 10 ) opposite the side of the axis of rotation of the rotary screen ( 9 ) a counterweight ( 18 ) is attached. 5. Ansauganlage nach Anspruch 4, dadurch gekennzeichent, daß das Ausgleichsgewicht von parallel zur Drehachse der Drehblende (9) verlaufenden und sich über deren ganze Länge erstreckenden Stäben (18) gebildet ist, welches sich zwischen den Stirnwänden (11) der Drehblende (9) erstrecken und mit diesen verbunden sind. 5. Intake system according to claim 4, characterized in that the balance weight of parallel to the axis of rotation of the rotary screen ( 9 ) extending and extending over its entire length rods ( 18 ) is formed, which between the end walls ( 11 ) of the rotary screen ( 9 ) extend and connected to them. 6. Ansauganlage nach Anspruch 1, dadurch gekennzeichnet, daß alle Saugrohre (1, 2) und die beiden Ansaugver­ teiler (3, 6) sowie deren Verbindungsleitung (7) in einem einzigen Bauteil integriert sind, in welchem die beiden Saugrohre (1, 2) für jeden Zylinder übereinander und die den einzelnen Zylinder zugeord­ neten Saugrohre nebeneinander angeordnet sind.6. Intake system according to claim 1, characterized in that all the suction pipes ( 1 , 2 ) and the two Ansaugver dividers ( 3 , 6 ) and their connecting line ( 7 ) are integrated in a single component in which the two suction pipes ( 1 , 2nd ) for each cylinder one above the other and the suction pipes assigned to the individual cylinders are arranged side by side.
DE4040598A 1990-12-19 1990-12-19 Aspiration unit for multicylinder IC engine - has suction pipes per cylinder of differing lengths Withdrawn DE4040598A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4040598A DE4040598A1 (en) 1990-12-19 1990-12-19 Aspiration unit for multicylinder IC engine - has suction pipes per cylinder of differing lengths

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4040598A DE4040598A1 (en) 1990-12-19 1990-12-19 Aspiration unit for multicylinder IC engine - has suction pipes per cylinder of differing lengths

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DE4040598A1 true DE4040598A1 (en) 1992-06-25

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995018295A1 (en) * 1993-12-24 1995-07-06 Audi Ag Inlet manifold assembly for a multi-cylinder internal-combustion engine
EP0691461A1 (en) 1994-07-05 1996-01-10 FILTERWERK MANN & HUMMEL GMBH Induction system for a multi-cylinder combustion engine
DE19613467A1 (en) * 1996-04-04 1997-10-09 Mann & Hummel Filter Intake system for an internal combustion engine
DE19800079A1 (en) * 1998-01-02 1999-07-08 Volkswagen Ag Air intake for motor
DE10227254A1 (en) * 2002-06-19 2004-01-08 Mann + Hummel Gmbh Closure device is for air inlet channels in multi-cylinder internal combustion engine and is provided with slider valve comprising closure components which have through hole running parallel to axis of air inlet channels
DE102004045730B3 (en) * 2004-09-21 2006-03-16 Pierburg Gmbh Flap e.g. for air suction channel system of combustion engine, has shaft and flap body, which is fastened to shaft in channel of air duct system and flap body is swiveled into first channel lock and second channel release position
EP1531256A3 (en) * 2003-11-12 2011-06-01 Pierburg GmbH Air intake system for an internal combustion engine

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DE3429414A1 (en) * 1983-08-10 1985-02-28 Mazda Motor Corp., Hiroshima AIR INLET SYSTEM FOR COMBUSTION ENGINES
JPS60147531A (en) * 1984-01-12 1985-08-03 Mazda Motor Corp Suction device for engine
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DE3702827A1 (en) * 1987-01-30 1988-08-11 Bayerische Motoren Werke Ag INTAKE SYSTEM WITH A CONTROL DEVICE, ESPECIALLY FOR COMBUSTION ENGINES

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3814069A (en) * 1971-01-01 1974-06-04 Lucas Industries Ltd Inlet manifolds
DE3429414A1 (en) * 1983-08-10 1985-02-28 Mazda Motor Corp., Hiroshima AIR INLET SYSTEM FOR COMBUSTION ENGINES
JPS60147531A (en) * 1984-01-12 1985-08-03 Mazda Motor Corp Suction device for engine
DE3529388C2 (en) * 1985-08-16 1987-07-09 Audi Ag, 8070 Ingolstadt, De
DE3711859A1 (en) * 1986-04-19 1987-10-22 Volkswagen Ag Multicylinder reciprocating piston internal combustion engine
DE3702827A1 (en) * 1987-01-30 1988-08-11 Bayerische Motoren Werke Ag INTAKE SYSTEM WITH A CONTROL DEVICE, ESPECIALLY FOR COMBUSTION ENGINES

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Title
60-147531 A. M-437, DEc. 10, 1985, Vol. 9/No.313 *
Patents Abstracts of Japan: 63-255514 A. M-793, Feb. 03, 1989, Vol.13/No. 48 *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995018295A1 (en) * 1993-12-24 1995-07-06 Audi Ag Inlet manifold assembly for a multi-cylinder internal-combustion engine
EP0691461A1 (en) 1994-07-05 1996-01-10 FILTERWERK MANN & HUMMEL GMBH Induction system for a multi-cylinder combustion engine
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DE102004045730B3 (en) * 2004-09-21 2006-03-16 Pierburg Gmbh Flap e.g. for air suction channel system of combustion engine, has shaft and flap body, which is fastened to shaft in channel of air duct system and flap body is swiveled into first channel lock and second channel release position

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