DE4404946A1 - Air intake pipe for IC engine - Google Patents

Air intake pipe for IC engine

Info

Publication number
DE4404946A1
DE4404946A1 DE4404946A DE4404946A DE4404946A1 DE 4404946 A1 DE4404946 A1 DE 4404946A1 DE 4404946 A DE4404946 A DE 4404946A DE 4404946 A DE4404946 A DE 4404946A DE 4404946 A1 DE4404946 A1 DE 4404946A1
Authority
DE
Germany
Prior art keywords
air intake
intake pipe
manifold
flange
pipe
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Withdrawn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
DE4404946A
Other languages
German (de)
Inventor
Hartmut Witte
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.)
Pierburg GmbH
Original Assignee
Pierburg GmbH
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 Pierburg GmbH filed Critical Pierburg GmbH
Priority to DE4404946A priority Critical patent/DE4404946A1/en
Publication of DE4404946A1 publication Critical patent/DE4404946A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10Air intakes; Induction systems
    • F02M35/10091Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
    • F02M35/10144Connections of intake ducts to each other or to another device
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B27/00Use 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
    • F02B27/005Oscillating pipes with charging achieved by arrangement, dimensions or shapes of intakes pipes or chambers; Ram air pipes
    • F02B27/006Oscillating pipes with charging achieved by arrangement, dimensions or shapes of intakes pipes or chambers; Ram air pipes of intake runners
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10Air intakes; Induction systems
    • F02M35/10006Air 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
    • F02M35/10026Plenum chambers
    • F02M35/10032Plenum chambers specially shaped or arranged connecting duct between carburettor or air inlet duct and the plenum chamber; specially positioned carburettors or throttle bodies with respect to the plenum chamber
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10Air intakes; Induction systems
    • F02M35/10006Air 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
    • F02M35/10026Plenum chambers
    • F02M35/10052Plenum chambers special shapes or arrangements of plenum chambers; Constructional details
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10Air intakes; Induction systems
    • F02M35/10091Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
    • F02M35/10111Substantially V-, C- or U-shaped ducts in direction of the flow path
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10Air intakes; Induction systems
    • F02M35/1034Manufacturing and assembling intake systems
    • F02M35/10354Joining multiple sections together
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10Air intakes; Induction systems
    • F02M35/104Intake manifolds
    • F02M35/112Intake manifolds for engines with cylinders all in one line
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D9/00Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/1035Details of the valve housing
    • F02D9/104Shaping of the flow path in the vicinity of the flap, e.g. having inserts in the housing
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

Abstract

The air intake has individual channels formed by tube bends (5). These are accommodated and tensioned in retainer bores between a flange rail (2) and a collection tube (3). There are side walls (4) between the flange rail and the tube to form a frame. A throttle flap socket (9) is integrated into an end wall (8) of the collection tube. The opposite end wall (10) of the tube is formed by a cover (11). The tube ends are retained via an intermediate elastic seal, formed by an intake air funnel.

Description

Die Erfindung betrifft ein Luftansaugrohr für eine Brenn­ kraftmaschine nach dem Oberbegriff des Anspruchs 1.The invention relates to an air intake pipe for a burner Motor machine according to the preamble of claim 1.

Derartige Luftansaugrohre weisen zur Erhöhung der Zylinder­ füllung bzw. des Motordrehmoments erhebliche Schwinglängen auf, und es sind bereits eine Reihe von Vorschlägen be­ kannt, wie diese mit geringstem Bauraum realisiert werden können (DE-GM 92 17 249).Such air intake pipes have to increase the cylinders filling or the engine torque considerable oscillation lengths on, and there are already a number of suggestions knows how these can be realized with the smallest possible installation space can (DE-GM 92 17 249).

Aus dem DE-GM 89 14 049 ist bereits bekannt, ein Luftan­ saugrohr aus mehreren Bauteilen herzustellen, die als Guß­ teile ausgeführt und zusammengeschraubt sind.From DE-GM 89 14 049 an Luftan is already known Manufacture intake manifold from several components that are cast parts executed and screwed together.

Diese Lösung hat jedoch den Nachteil, daß die Bauteilkon­ taktflächen sehr genau hergestellt werden müssen, um Dich­ tigkeit zu erlangen, und wegen der Teilevielzahl besteht ein erhöhter Montageaufwand.However, this solution has the disadvantage that the component con tactical areas must be made very precisely to you activity and because of the large number of parts increased assembly effort.

Hiervon ausgehend liegt der Erfindung die Aufgabe zugrunde, ein gattungsgemäßes Luftansaugrohr derart zu gestalten, daß geringer Bauraum, eine geringe Bauteilanzahl sowie gering­ ste mechanische Bearbeitung und Montageaufwand erreichbar sind.Proceeding from this, the object of the invention is to design a generic air intake pipe such that small space, a small number of components and small mechanical processing and assembly effort are.

Diese Aufgabe ist durch die im Kennzeichen des Anspruchs 1 angegebenen Merkmale gelöst, weitere Merkmale vorteilhafter Weiterbildungen sind in den Unteransprüchen angegeben.This object is achieved in the characterizing part of claim 1 specified features solved, other features more advantageous Further developments are specified in the subclaims.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird nachfolgend mit Angabe erreichbarer Vorteile beschrieben.An embodiment of the invention is in the drawing is shown and is more accessible below with details Advantages described.

Diese Zeichnung zeigt:This drawing shows:

Fig. 1 ein erfindungsgemäßes Luftansaugrohr, Fig. 1 shows an inventive air intake pipe,

Fig. 2 einen Querschnitt aus Fig. 1, Fig. 2 shows a cross section of Fig. 1,

Fig. 3 einen Längsschnitt aus Fig. 1. Fig. 3 a longitudinal section in FIG. 1.

Fig. 1 zeigt ein Luftansaugrohr 1 für eine Brennkraftma­ schine, das mit einer Flanschleiste 2 am Zylinderkopf derselben angeschraubt werden kann. Fig. 1 shows an air intake pipe 1 for an internal combustion engine, which can be screwed to the cylinder head of the same with a flange 2 .

Das Luftansaugrohr 1 besteht aus der Flanschleiste 2 und einem Sammelrohr 3, die beide durch Seitenwände 4, einen Rahmen bildend verbunden und als Gußstück hergestellt sind.The air intake pipe 1 consists of the flange 2 and a manifold 3 , both of which are connected by side walls 4 , forming a frame and are produced as a casting.

Zwischen der Flanschleiste 2 und dem Sammelrohr 3 sind, wie in Fig. 2 dargestellt, Rohrkrümmer 5 in entsprechend ausge­ formte Aufnahmebohrungen 6, 7 eingespannt, die Einzelkanäle bilden, die ausgehend vom Sammelrohr 3 zu den einzelnen Zy­ lindern der Brennkraftmaschine führen. Das Sammelrohr 3 weist an einer Stirnwand 8 einen integrierten Drosselklap­ penstutzen 9 auf, wobei die entgegengesetzte Stirnwand 10 von einem Deckel 11 gebildet ist. Auf diese Art läßt sich ein im Drosselklappenstutzen 9 bestehender Drosselabschnitt 12 ausformen, wie aus Fig. 3 ersichtlich, indem beiderseits des Drosselabschnitts 12 Formzüge ausgezogen werden können.Between the flange 2 and the manifold 3 , as shown in Fig. 2, pipe elbows 5 are clamped in correspondingly shaped receiving bores 6 , 7 , which form individual channels that alleviate starting from the manifold 3 to the individual Zy the engine. The header tube 3 has an integrated Drosselklap penstutzen 9 on an end wall 8 , the opposite end wall 10 being formed by a cover 11 . In this way, an existing throttle section 12 in the throttle valve neck 9 can be formed, as can be seen in FIG. 3, by pulling out molds 12 on both sides of the throttle section.

Die Rohrkrümmer 5 werden, wie in Fig. 2 dargestellt ist, unter Zwischenlage einer elastischen Dichtung 13 einge­ spannt und durch umgeformte Sammelrohr- bzw. Flanschlei­ stenwände 14 bzw. 15 gehalten.The elbows 5 are, as shown in Fig. 2, clamped with the interposition of an elastic seal 13 and are held by reshaped manifold or flange guide walls 14 and 15 respectively.

Die Montage der Rohrkrümmer 5 wird erleichtert, wenn die Rohrkrümmer 5 einen Krümmungsbogenabschnitt mit einem Win­ kel α von etwa 180° aufweisen.The assembly of the pipe elbow 5 is facilitated if the pipe elbow 5 have a curved section with a win angle α of about 180 °.

In die Flanschleiste 2 können elektrische Einspritzventile eingesetzt werden, wobei die hierfür vorgesehenen Aufnahme­ bohrungen in Einzelkanäle 16 einmünden, die in der Flansch­ leiste 2 in Weiterführung der Rohrkrümmerkanäle bestehen. Die elastische Dichtung 13 ist vorteilhafterweise auf der Einströmseite als Einlauflufttrichter 17 ausgebildet.In the flange strip 2 , electrical injection valves can be used, the receptacles provided for this purpose opening into individual channels 16 , which consist in the flange strip 2 in continuation of the pipe elbow channels. The elastic seal 13 is advantageously designed as an inlet air funnel 17 on the inflow side.

Mit dem erfindungsgemäßen Luftansaugrohr 1 liegt eine sehr steife Rahmenkonstruktion vor, die als Gußteil in Formma­ schinen und mit weniger mechanischer Bearbeitung herge­ stellt werden kann. With the air intake pipe 1 according to the invention, there is a very rigid frame construction which can be machined as a casting in Formma and can be produced with less mechanical processing.

Die als gelängte Rohrkrümmer 5 ausgeführten Einzelkanäle sind sehr dünnwandig und weisen eine sehr glatte Oberfläche auf. Damit liegt eine Gewichtsreduzierung gegenüber gegos­ senen Rohren vor und die angesaugte Luft strömt mit vermin­ derter Reibung in die Brennzylinder ein, womit eine bessere Füllung erreicht wird. Die durch umgeformte Wandungen 14, 15 erreichte Befestigung der Rohrkrümmer 5 ist gegenüber Verschraubung billiger.The individual channels 5, which are designed as elongated elbows, are very thin-walled and have a very smooth surface. This results in a weight reduction compared to cast pipes and the sucked-in air flows into the combustion cylinder with reduced friction, thus achieving a better filling. The fastening of the pipe elbow 5 achieved by deformed walls 14 , 15 is cheaper than screwing.

Die integrierte Anordnung des Drosselklappenstutzens 9 so­ wie der elektrischen Einspritzventile läßt ein kompaktes Einbauteil entstehen, das eine integrierte Funktionsüber­ prüfung der einzelnen Funktionsgruppen ermöglicht. Hierdurch werden Qualität erhöht und Kosten vermieden.The integrated arrangement of the throttle valve connector 9 as well as the electric injection valves allows a compact installation part to be created which enables an integrated function check of the individual function groups. This increases quality and avoids costs.

Claims (5)

1. Luftansaugrohr für eine Brennkraftmaschine gebil­ det aus einem Sammelrohr und zu den einzelnen Zylindern der Brennkraftmaschine führenden Einzelkanälen, wobei der Ein­ laß des Sammelrohres von einem Drosselklappenstutzen gebil­ det ist, dadurch gekennzeichnet, daß die Einzelkanäle von Rohrkrümmern (5) gebildet werden, die zwischen einer Flanschleiste (2) und dem Sammelrohr (3) in entsprechend ausgeformte Aufnahmebohrungen (14, 15) auf genommen und ein­ gespannt sind, und daß zwischen Flanschleiste (2) und Sam­ melrohr (3) Seitenwände (4) bestehen und einen Rahmen bil­ den.1. Air intake pipe for an internal combustion engine gebil det from a manifold and individual channels leading to the individual cylinders of the internal combustion engine, the inlet of the manifold being formed by a throttle body, characterized in that the individual channels are formed by pipe elbows ( 5 ) which are between a flange ( 2 ) and the manifold ( 3 ) in appropriately shaped receiving bores ( 14 , 15 ) and taken up, and that between the flange ( 2 ) and Sam melrohr ( 3 ) side walls ( 4 ) exist and a frame bil . 2. Luftansaugrohr nach Anspruch 1, dadurch gekennzeichnet, daß der Drosselklappenstutzen (9) an einer Stirnwand (8) des Sammelrohres (3) integriert ist und die entgegengesetzte Stirnwand (10) des Sammelrohres (3) von einem Deckel (11) gebildet ist.2. Air intake pipe according to claim 1, characterized in that the throttle valve connector ( 9 ) on an end wall ( 8 ) of the collecting pipe ( 3 ) is integrated and the opposite end wall ( 10 ) of the collecting pipe ( 3 ) is formed by a cover ( 11 ). 3. Luftansaugrohr nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Rohrkrümmer (5) unter Zwischenlage einer elastischen Dichtung (13) eingespannt und durch umge­ formte Sammelrohr- bzw. Flanschleistenwände (14 bzw. 15) gehalten sind.3. Air intake pipe according to claim 1 or 2, characterized in that the pipe elbow ( 5 ) with the interposition of an elastic seal ( 13 ) clamped and held by reshaped manifold or flange bar walls ( 14 and 15 ). 4. Luftansaugrohr nach Anspruch 3, dadurch gekenn­ zeichnet, daß die elastische Dichtung (13) als Einlaufluft­ trichter (17) ausgebildet ist.4. Air intake pipe according to claim 3, characterized in that the elastic seal ( 13 ) is designed as an inlet air funnel ( 17 ). 5. Luftansaugrohr nach Anspruch 4, dadurch gekenn­ zeichnet, daß die Rohrkrümmer (5) einen Krümmungsbogenab­ schnitt mit einem Winkel (α) von etwa 180° aufweisen.5. Air intake pipe according to claim 4, characterized in that the pipe elbow ( 5 ) cut a Krümmungsbogenab with an angle (α) of about 180 °.
DE4404946A 1994-02-17 1994-02-17 Air intake pipe for IC engine Withdrawn DE4404946A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4404946A DE4404946A1 (en) 1994-02-17 1994-02-17 Air intake pipe for IC engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4404946A DE4404946A1 (en) 1994-02-17 1994-02-17 Air intake pipe for IC engine

Publications (1)

Publication Number Publication Date
DE4404946A1 true DE4404946A1 (en) 1995-08-24

Family

ID=6510405

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4404946A Withdrawn DE4404946A1 (en) 1994-02-17 1994-02-17 Air intake pipe for IC engine

Country Status (1)

Country Link
DE (1) DE4404946A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19613467A1 (en) * 1996-04-04 1997-10-09 Mann & Hummel Filter Intake system for an internal combustion engine
EP1046808A2 (en) * 1999-04-19 2000-10-25 Aichi Kikai Kogyo Kabushiki Kaisha Surge tank structure in intake manifold
WO2007006410A1 (en) * 2005-07-08 2007-01-18 Mündener Gummiwerk Gmbh Sleeve of a charge air hose which is used to fix the charge air hose to a nozzle and method for fixing the nozzle
WO2014041281A1 (en) * 2012-09-14 2014-03-20 Peugeot Citroen Automobiles Sa Intake air distributor of a combustion engine, and associated assembly and vehicle

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19613467A1 (en) * 1996-04-04 1997-10-09 Mann & Hummel Filter Intake system for an internal combustion engine
WO1997038221A1 (en) * 1996-04-04 1997-10-16 Filterwerk Mann+Hummel Gmbh Admission system for an internal combustion engine
US6176213B1 (en) 1996-04-04 2001-01-23 Filterwerk Mann & Hummel Gmbh Admission system for an internal combustion engine
EP1046808A2 (en) * 1999-04-19 2000-10-25 Aichi Kikai Kogyo Kabushiki Kaisha Surge tank structure in intake manifold
EP1046808A3 (en) * 1999-04-19 2001-07-04 Aichi Kikai Kogyo Kabushiki Kaisha Surge tank structure in intake manifold
WO2007006410A1 (en) * 2005-07-08 2007-01-18 Mündener Gummiwerk Gmbh Sleeve of a charge air hose which is used to fix the charge air hose to a nozzle and method for fixing the nozzle
WO2014041281A1 (en) * 2012-09-14 2014-03-20 Peugeot Citroen Automobiles Sa Intake air distributor of a combustion engine, and associated assembly and vehicle
FR2995639A1 (en) * 2012-09-14 2014-03-21 Peugeot Citroen Automobiles Sa INTAKE AIR DISTRIBUTOR OF A COMBUSTION ENGINE, ASSEMBLY AND VEHICLE THEREFOR

Similar Documents

Publication Publication Date Title
DE2823393C2 (en)
DE19614474B4 (en) Air intake duct system for internal combustion engines
DE2702160A1 (en) INTAKE SYSTEM
EP0093845B1 (en) Connecting duct between the compressor and the intake manifold of a supercharged internal-combustion engine
DE4439792C2 (en) Air intake system for internal combustion engines
DE60114125T2 (en) INTAKE DEVICE FOR USE IN A COMBUSTION ENGINE
EP0098543B1 (en) Covernor air inlet arrangement for internal-combustion engines, particularly multicylinder fuel injection internal-combustion engines
DE4404946A1 (en) Air intake pipe for IC engine
EP1119700B1 (en) Air-routing system, especially a suction system of an internal combustion engine
DE10144015A1 (en) Exhaust system for multi-cylinder internal combustion engines
DE2331755C3 (en) Intake manifold on reciprocating internal combustion engines
DE19753390A1 (en) Tuned air intake manifold for IC engine
DE4042415A1 (en) IC engine with cylinder banks in V-formation - has two-part intake conduit, located above exhaust collection pipes, both within V-space
EP1044325B1 (en) Method for producing doors, hoods or single parts made of sheet metal in automotive bodyshells
DE10002240B4 (en) Device for generating an overtone-rich sportive exhaust noise
DE1933271A1 (en) Intake manifold for internal combustion engines
DE3137453C2 (en) Intake arrangement for an internal combustion engine
DE3344950A1 (en) COMPACT FRESH GAS INLET SYSTEM FOR COMBINED CHARGED ENGINES
DE19526241B4 (en) Air intake duct system for internal combustion engines
DE60029809T2 (en) SHAPED INTAKE MANIFOLD WITH SEPARATE INTAKE TUBES
DE4447832B4 (en) Air inlet system for IC engine - has adjacent airflow chambers connecting air entry to suction pipes
EP0113441B1 (en) Air inlet arrangement for internal-combustion engines, particularly fuel injection combustion engines
EP1668233B1 (en) Air induction module for a combustion engine having pulse charging
DE2719615A1 (en) Suction pipe for internal combustion engine - consists of drawn steel tube which is cast into manifold and has cast bolting flange on end
DE4205235A1 (en) IC engine suction manifold - has two-part intake duct per cylinder with connected intake elbow with two collector pipes

Legal Events

Date Code Title Description
8127 New person/name/address of the applicant

Owner name: PIERBURG AG, 41460 NEUSS, DE

8110 Request for examination paragraph 44
8127 New person/name/address of the applicant

Owner name: PIERBURG GMBH, 41460 NEUSS, DE

8130 Withdrawal