DE4229408C1 - Air intake device for IC engine with crankcase ventilation - has flow divider chamber, and ventilation opens into it via tube end section, which is connected to pressure control valve - Google Patents

Air intake device for IC engine with crankcase ventilation - has flow divider chamber, and ventilation opens into it via tube end section, which is connected to pressure control valve

Info

Publication number
DE4229408C1
DE4229408C1 DE19924229408 DE4229408A DE4229408C1 DE 4229408 C1 DE4229408 C1 DE 4229408C1 DE 19924229408 DE19924229408 DE 19924229408 DE 4229408 A DE4229408 A DE 4229408A DE 4229408 C1 DE4229408 C1 DE 4229408C1
Authority
DE
Germany
Prior art keywords
chamber
flow divider
end section
air
ventilation
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.)
Expired - Fee Related
Application number
DE19924229408
Other languages
German (de)
Inventor
Heinz 8043 Unterfoehring De Lemberger
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 DE19924229408 priority Critical patent/DE4229408C1/en
Application granted granted Critical
Publication of DE4229408C1 publication Critical patent/DE4229408C1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/1035—Details of the valve housing
    • F02D9/1055—Details of the valve housing having a fluid by-pass
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/02—Crankcase ventilating or breathing by means of additional source of positive or negative pressure
    • F01M13/021—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure
    • F01M13/022—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure using engine inlet suction
    • 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
    • F02M35/10032—Plenum 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
    • 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
    • F02M35/10209—Fluid connections to the air intake system; their arrangement of pipes, valves or the like
    • F02M35/10222—Exhaust gas recirculation [EGR]; Positive crankcase ventilation [PCV]; Additional air admission, lubricant or fuel vapour admission
    • 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
    • F02M35/104—Intake manifolds
    • F02M35/1045—Intake manifolds characterised by the charge distribution between the cylinders/combustion chambers or its homogenisation
    • 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
    • F02M35/104—Intake manifolds
    • F02M35/116—Intake manifolds for engines with cylinders in V-arrangement or arranged oppositely relative to the main shaft

Abstract

The device (1) has a mechanical flow divider, which generates speed-reducing airflows in a chamber (12), for esp. cylinder-related distribution in an air collector (2). The crankcase ventilation opens into the flow divider chamber, via a tube end section (22). The end section, resp. tube (23), is for connection of a pressure control valve (21) of the ventilation system, which is located away from the chamber, in the intake device. The section/tube opens into chamber, between groups (18,19) of passages (15,16) in the chamber wall (13), which cause cylinder-related distribution. USE/ADVANTAGE - During part-load operation, esp. idling operation of the IC engine, there is even distribution of blow-by gases in the air collector.

Description

Die Erfindung bezieht sich auf eine Luftansauganlage für Brennkraftmaschinen mit Einrichtungen zur Kurbelgehäu­ seentlüftung gemäß der im Oberbegriff des Patentanspru­ ches 1 beschriebenen Bauart.The invention relates to an air intake system for Internal combustion engines with facilities for crankcase sea ventilation according to the preamble of claim ches 1 described type.

Eine derartige Luftansauganlage DE 41 13 284 A1 wurde mit dem Ziel vorgeschlagen, die jeweils zugemessene Teillast­ luft in einem Luftsammler der Ansauganlage mittels einer schalldämpfenden Vorrichtung in Gestalt eines mechani­ schen Strömungsteilers mit einem eine Kammer überdecken­ den Lochblech in auf Zylindergruppen verteilte, geschwin­ digkeitsreduzierte Luftströme aufzuteilen.Such an air intake system DE 41 13 284 A1 was used proposed the target, the respectively allocated partial load air in an air collector of the intake system by means of a sound-absorbing device in the form of a mechani flow divider with a cover a chamber the perforated plate in distributed on cylinder groups, speed to divide reduced air flows.

Der Erfindung liegt die Aufgabe zugrunde, bei einer der­ artigen Luftansauganlage die Kurbelgehäuseentlüftung so zu gestalten, daß zumindest im Teillastbetrieb, insbeson­ dere im Leerlaufbetrieb, eine gleichmäßige Verteilung der Durchblase- bzw. blow-by-Gase im Luftsammler der Ansaug­ anlage erzielt ist.The invention has for its object in one of the like air intake system the crankcase ventilation so to design that at least in part-load operation, in particular idle, an even distribution of the Blow-by gases in the intake air collector plant is achieved.

Gelöst wird diese Aufgabe nach dem Kennzeichenmerkmal des Patentanspruches 1 dadurch, daß die Kurbelgehäuseentlüf­ tung über einen Leitungsendabschnitt in die Strömungstei­ ler-Kammer mündet.This task is solved according to the characteristic of the Claim 1 characterized in that the crankcase vent  tion into the flow section via a line end section Chamber opens.

Der Vorteil der Erfindung liegt in der intensiven Vermi­ schung der Durchblase-Gase mit der jeweiligen zugemesse­ nen Teillastluft und der damit mittels des mechanischen Strömungsteilers erreichten gleichmäßigen Verteilung über sämtliche in den Luftsammler mündenden Ansaugleitungen der Zylinder der Brennkraftmaschine.The advantage of the invention lies in the intensive vermi Blown gas generation with the respective metered NEN partial load air and thus by means of the mechanical Flow dividers achieved even distribution across all suction lines leading into the air collector the cylinder of the internal combustion engine.

Für den Fall einer geregelten/gesteuerten Kurbelgehäu­ seentlüftung kann in Ausgestaltung der Erfindung der Lei­ tungsendabschnitt der Verbindung einer von der Strömungs­ teiler-Kammer entfernt bzw. gesondert in der Ansauganlage angeordneten Einrichtung eines Druckregelventils der Kur­ belgehäuseentlüftung dienen. Hierbei läßt sich die Ver­ bindung zwischen Strömungsteiler-Kammer und beispiels­ weise diametral angeordnetem Druckregelventil mittels eines Rohres vorteilhaft einfach verwirklichen. Zur Un­ terstützung der gleichmäßigen Verteilung der Durchblase- Gase in der jeweiligen zugemessenen Teillastluft mündet der Leitungsendabschnitt bzw. das Verbindungs-Rohr in weiterer Ausgestaltung der Erfindung in die Strömungstei­ ler-Kammer zwischen zylinderbezogene Verteilungen bewir­ kenden Gruppen von Durchbrechungen der Begrenzung bzw. des der Kammer zugeordneten Lochbleches.In the case of a regulated / controlled crankcase Sea ventilation can be used in an embodiment of the invention tion end portion of the connection one of the flow divider chamber removed or separately in the intake system arranged establishment of a pressure control valve of the cure ventilation housing. Here, the Ver bond between flow divider chamber and example wise diametrically arranged pressure control valve by means of to realize a pipe advantageously simply. To the Un support the even distribution of the Gases in the respective metered partial load air flows the line end section or the connecting pipe in further embodiment of the invention in the flow section chamber between cylinder-related distributions groups of breakthroughs of the boundary or of the perforated plate assigned to the chamber.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben.An embodiment of the invention is shown in the drawing and is in following described in more detail.

Eine lediglich abschnittsweise dargestellte Luftansaugan­ lage 1 für eine nicht gezeigte Brennkraftmaschine umfaßt einen Luftsammler 2 mit diametral anschließenden Ansaug­ leitungen 3 und 4. Der Luftsammler 2 verfügt über eine Anschlußöffnung 5 für einen Hauptansaug-Stutzen 6, der über einen Flansch 7 mit dem Luftsammler 2 verbindbar ist. Der Hauptansaug-Stutzen 6 ist mit einer Drossel­ klappe 8 ausgestattet. Zu dieser Drosselklappe 8 ist im Bypass ein Teillastluft-Zumeßorgan 9 am Flansch 7 ange­ ordnet. Das als geregelter Leerlaufsteller ausgebildete Zumeßorgan 9 weist luftsammlerseitig einen Abströmquer­ schnitt 10 für den jeweiligen Teillast-Luftstrom auf. Weiter ist luftsammlerseitig im Flansch 7 eine im Um­ fangsbereich des Stutzens 6 benachbart angeordnete Ver­ tiefung 11 angeordnet, die als eine mit dem Zumeßorgan 9 abströmseitig luftführend verbundene Kammer 12 dient. Zur Abdeckung der einseitig offenen Kammer 12 dient eine zwi­ schen Flansch 7 und Luftsammler 2 angeordnete, eine ge­ sonderte Begrenzung 13 bildende Zwischenlage 14 mit Durchbrechungen 15 und 16.An air intake position 1 shown only in sections for an internal combustion engine, not shown, comprises an air collector 2 with diametrically adjoining intake lines 3 and 4 . The air collector 2 has a connection opening 5 for a main intake 6 , which can be connected to the air collector 2 via a flange 7 . The main intake port 6 is equipped with a throttle valve 8 . For this throttle valve 8 , a partial-load air metering element 9 is arranged on the flange 7 in the bypass. The metering element 9 , which is designed as a regulated idle actuator, has an outflow cross section on the air collector side 10 for the respective part-load airflow. Next is in the flange 7 on the air collector side in the circumferential region of the connecting piece 6 arranged adjacent recess 11 which serves as a chamber 12 connected to the metering element 9 on the outflow air side. To cover the one-sided open chamber 12 between a flange's 7 and air collector 2 arranged, a ge special boundary 13 forming intermediate layer 14 with openings 15 and 16 .

Die stromab des Zumeßorgans 9 mit dessen Abströmquer­ schnitt 10 luftführend verbundene Kammer 12 mit einem zu­ mindest einem maximalen sekundlichen Teillast-Luftstrom entsprechenden Volumen dient mit ihren Durchbrechungen 15 und 16, deren Gesamtquerschnitt größer als der des Ab­ strömquerschnittes 10 des Zumeßorganes 9 ist, als schall­ dämpfende Vorrichtung 17.The downstream of the metering element 9 with its outflow cross section 10 air-connected chamber 12 with a volume corresponding to at least a maximum secondary partial load air flow serves with its openings 15 and 16 , the total cross section of which is greater than that of the flow cross section 10 from the metering element 9 , as sound damping device 17 .

Die schalldämpfende Vorrichtung 17 wirkt als mechanischer Strömungsteiler derart, daß der jeweilige vom Zumeßorgan 9 bestimmte Teillast-Luftstrom mittels der Durchbrechun­ gen 15 und 16 in Teilströme mit relativ zur Abströmge­ schwindigkeit des jeweiligen Teillast-Luftstromes aus dem Zumeßorgan bzw. dem Leerlaufsteller 9 geringeren Ge­ schwindigkeiten aufgeteilt ist.The sound-absorbing device 17 acts as a mechanical flow divider such that the respective part-load air flow determined by the metering element 9 by means of the openings 15 and 16 in partial flows with speed relative to the outflow speed of the respective part-load air flow from the metering element or the idle actuator 9 is lower speed is divided.

Wie aus der Zeichnung ferner erkennbar, ist die Zwischen­ lage 14 in einem dem Abströmquerschnitt 10 des Zumeßor­ gans 9 gegenüberliegenden Bereich frei von Durchbrechun­ gen 15, 16, wodurch der Gesamt-Teillast-Luftstrom aus dem Abströmquerschnitt 10 in die Teilströme A und B aufge­ teilt ist. Aus der Zeichnung ist weiter erkennbar, daß die Durchbrechungen 15 und 16 entsprechend diametral in den Luftsammler 2 mündender Ansaugleitungen 3, 4 in der Zwischenlage 14 auf diametral in benachbartem Umfangsbe­ reich des Hauptansaug-Stutzens 6 vorgesehene Gruppen 18 und 19 verteilt angeordnet sind. Erreicht ist damit eine gleichmäßige Versorgung der einen wie der anderen Reihe von Ansaugleitungen 3 und 4.As can also be seen from the drawing, the intermediate position 14 in an area 10 of the Zumeßor goose 9 opposite area free of openings 15 , 16 , whereby the total part-load airflow from the cross-section 10 in the partial streams A and B divides is. From the drawing it can also be seen that the openings 15 and 16 are arranged diametrically in the air collector 2 opening suction lines 3 , 4 in the intermediate layer 14 on diametrically in adjacent peripheral areas of the main intake 6 6 groups 18 and 19 are arranged. A uniform supply of one and the other series of intake lines 3 and 4 is thus achieved.

An den Luftsammler 2 schließt bei 20 eine Kurbelgehäu­ seentlüftung der nicht gezeigten Brennkraftmaschine an. In der Kurbelgehäuseentlüftung ist stromab der Anschluß­ stelle 20 ein Druckregelventil 21 vorgesehen, das am Luftsammler 2 diametral zur schalldämpfenden Vorrichtung 17 angeordnet ist.At 20, a crankcase ventilation of the internal combustion engine, not shown, connects to the air collector 2 . In the crankcase ventilation downstream of the connection point 20, a pressure control valve 21 is provided, which is arranged on the air collector 2 diametrically to the sound-absorbing device 17 .

Zur gleichmäßigen Verteilung der Durchblase- bzw. blow­ by-Gase im Luftsammler 2 über sämtliche Ansaugleitungen 3 und 4 werden diese Gase stromab des Druckregelventils 21 mittels eines Leitungsendabschnittes 22 der Kurbelgehäu­ seentlüftung in die Strömungsteiler-Kammer 12 eingeführt. Dort werden sie mit der jeweils zugemessenen Teillastluft vermischt und über die Durchbrechungen 15 und 16 zylin­ derbezogen im Luftsammler 2 mittels geschwindigkeitsredu­ zierter Luftströme verteilt.To evenly distribute the blow-by or blow-by gases in the air collector 2 over all suction lines 3 and 4 , these gases are introduced downstream of the pressure control valve 21 by means of a line end section 22 of the crankcase ventilation into the flow divider chamber 12 . There they are mixed with the respectively metered partial load air and distributed via the openings 15 and 16 in a cylinder-related manner in the air collector 2 by means of speed-reduced air flows.

Im vorliegenden Fall des von der schalldämpfenden Vor­ richtung 17 im Luftsammler 2 entfernt angeordneten Druck­ regelventils 21 dient der Leitungsendabschnitt 22 der Kurbelgehäuseentlüftung der Verbindung des Druckregelven­ tils 21 mit der Strömungsteiler-Kammer 12, wobei der Lei­ tungsendabschnitt 22 als ein Rohr 23 gestaltet ist.In the present case of the pressure control valve 21 , which is arranged away from the sound-absorbing device 17 in the air collector 2 , the line end section 22 of the crankcase ventilation serves to connect the pressure regulating valve 21 to the flow divider chamber 12 , the line end section 22 being designed as a tube 23 .

Zur Unterstützung der gleichmäßigen Verteilung der Durch­ blase-Gase in der jeweils zugemessenen Teillastluft mün­ det das Rohr 23 in die Strömungsteiler-Kammer 12 zwischen den zylinderbezogene Verteilungen bewirkenden Gruppen 18 und 19 der Durchbrechungen 15 und 16 der Begrenzung 13, wobei das Rohr 23 die Begrenzung 13 über die Ausnehmung 24 durchsetzt.To support the uniform distribution of the bubble gases in the respectively metered partial load air, the pipe 23 detects into the flow divider chamber 12 between the cylinder-related distributing groups 18 and 19 of the openings 15 and 16 of the boundary 13 , the pipe 23 being the boundary 13 passes through the recess 24 .

Claims (3)

1. Luftansauganlage für Brennkraftmaschinen mit Ein­ richtungen zur Kurbelgehäuseentlüftung,
  • - wobei die Ansauganlage (1) ein zu einem steuerbaren Hauptansaug-Stutzen (6) im Bypass angeordnetes Teil­ lastluft-Zumeßorgan (Leerlaufsteller 9) mit einer stromab angeordneten schalldämpfenden Vorrichtung (17) umfaßt, die
  • - als mechanischer Strömungsteiler über vorbestimmte Durchbrechungen (15, 16) in einer Begrenzung (13) einer Kammer (12) für eine insbesondere zylinderbe­ zogene Verteilung in einem Luftsammler (2) der An­ sauganlage (1) geschwindigkeitsreduzierte Luftströme bewirkt, dadurch gekennzeichnet,
  • - daß die Kurbelgehäuseentlüftung über einen Leitungs­ endabschnitt (22) in die Strömungsteiler-Kammer (12) mündet.
1. Air intake system for internal combustion engines with devices for crankcase ventilation,
  • - Wherein the intake system ( 1 ) to a controllable main intake ( 6 ) arranged in the bypass part load air metering element (idle actuator 9 ) with a downstream sound-absorbing device ( 17 )
  • - As a mechanical flow divider via predetermined openings ( 15 , 16 ) in a boundary ( 13 ) of a chamber ( 12 ) for a particular cylinder-related distribution in an air collector ( 2 ) of the intake system ( 1 ) causes reduced-speed air flows, characterized in that
  • - That the crankcase ventilation via a line end section ( 22 ) opens into the flow divider chamber ( 12 ).
2. Luftansauganlage nach Anspruch 1, dadurch gekennzeichnet, daß der Leitungsendabschnitt (22 bzw. Rohr 23) der Verbindung einer von der Strö­ mungsteiler-Kammer (12) entfernt in der Ansauganlage (1) angeordneten Einrichtung (Druckregelventil 21) der Kurbelgehäuseentlüftung dient.2. Air intake system according to claim 1, characterized in that the line end section ( 22 or tube 23 ) is used to connect a flow divider chamber ( 12 ) in the intake system ( 1 ) arranged device (pressure control valve 21 ) for crankcase ventilation. 3. Luftansauganlage nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß der Leitungsendabschnitt (22 bzw. Rohr 23) in die Strömungsteiler-Kammer (12) zwischen zylinderbezogene Verteilungen bewirkenden Gruppen (18, 19) von Durchbrechungen (15, 16) der Begrenzung (13) mündet.3. Air intake system according to claims 1 and 2, characterized in that the line end section ( 22 or tube 23 ) in the flow divider chamber ( 12 ) between cylinder-related distributions causing groups ( 18 , 19 ) of openings ( 15 , 16 ) of the boundary ( 13 ) opens.
DE19924229408 1992-09-03 1992-09-03 Air intake device for IC engine with crankcase ventilation - has flow divider chamber, and ventilation opens into it via tube end section, which is connected to pressure control valve Expired - Fee Related DE4229408C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19924229408 DE4229408C1 (en) 1992-09-03 1992-09-03 Air intake device for IC engine with crankcase ventilation - has flow divider chamber, and ventilation opens into it via tube end section, which is connected to pressure control valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19924229408 DE4229408C1 (en) 1992-09-03 1992-09-03 Air intake device for IC engine with crankcase ventilation - has flow divider chamber, and ventilation opens into it via tube end section, which is connected to pressure control valve

Publications (1)

Publication Number Publication Date
DE4229408C1 true DE4229408C1 (en) 1993-08-19

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DE19924229408 Expired - Fee Related DE4229408C1 (en) 1992-09-03 1992-09-03 Air intake device for IC engine with crankcase ventilation - has flow divider chamber, and ventilation opens into it via tube end section, which is connected to pressure control valve

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4330125C1 (en) * 1993-09-06 1994-11-10 Bayerische Motoren Werke Ag Crankcase breather device of an internal combustion engine
DE4334702A1 (en) * 1993-10-12 1995-04-13 Opel Adam Ag Venting device of an internal combustion engine
DE19512643C1 (en) * 1995-04-05 1996-08-14 Bayerische Motoren Werke Ag IC engine crankcase ventilation device
DE19546545A1 (en) * 1995-12-13 1997-06-19 Knecht Filterwerke Gmbh Internal combustion engine intake module
FR2783283A1 (en) * 1998-09-14 2000-03-17 Mark Iv Systemes Moteurs Sa INTEGRATED INTAKE MANIFOLD / BUTTERFLY HOUSING
EP1091099A1 (en) * 1999-10-07 2001-04-11 Siemens Canada Limited Positive crankcase ventilation system
DE10054264A1 (en) * 2000-11-02 2002-05-08 Opel Adam Ag Intake pipe unit for feeding air into combustion chambers in a multi-cylinder internal combustion engine has an air-collection chamber, a throttle valve connection piece with an adjustable throttle valve and gas exchange valves.
EP1277933A1 (en) 2001-06-27 2003-01-22 Filterwerk Mann + Hummel Gmbh Intake system for combustion engine with crankcase ventilation
DE102009053433A1 (en) * 2009-11-17 2011-05-19 Daimler Ag Suction tube section and suction system
DE102004032144B4 (en) 2004-07-02 2019-10-24 Volkswagen Ag Internal combustion engine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4113248A1 (en) * 1991-04-23 1992-10-29 Bayerische Motoren Werke Ag Air intake device for Otto-engine - has sound-damping device, to divide air flow from metering element into low speed part flows

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4113248A1 (en) * 1991-04-23 1992-10-29 Bayerische Motoren Werke Ag Air intake device for Otto-engine - has sound-damping device, to divide air flow from metering element into low speed part flows

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4330125C1 (en) * 1993-09-06 1994-11-10 Bayerische Motoren Werke Ag Crankcase breather device of an internal combustion engine
DE4334702A1 (en) * 1993-10-12 1995-04-13 Opel Adam Ag Venting device of an internal combustion engine
DE19512643C1 (en) * 1995-04-05 1996-08-14 Bayerische Motoren Werke Ag IC engine crankcase ventilation device
DE19546545B4 (en) * 1995-12-13 2006-01-12 Mahle Filtersysteme Gmbh intake manifold
DE19546545A1 (en) * 1995-12-13 1997-06-19 Knecht Filterwerke Gmbh Internal combustion engine intake module
FR2783283A1 (en) * 1998-09-14 2000-03-17 Mark Iv Systemes Moteurs Sa INTEGRATED INTAKE MANIFOLD / BUTTERFLY HOUSING
EP0987429A1 (en) * 1998-09-14 2000-03-22 Mark IV Systemes Moteurs (Société Anonyme) Integrated intake manifold / throttle valve body
EP1091099A1 (en) * 1999-10-07 2001-04-11 Siemens Canada Limited Positive crankcase ventilation system
DE10054264A1 (en) * 2000-11-02 2002-05-08 Opel Adam Ag Intake pipe unit for feeding air into combustion chambers in a multi-cylinder internal combustion engine has an air-collection chamber, a throttle valve connection piece with an adjustable throttle valve and gas exchange valves.
EP1277933A1 (en) 2001-06-27 2003-01-22 Filterwerk Mann + Hummel Gmbh Intake system for combustion engine with crankcase ventilation
DE102004032144B4 (en) 2004-07-02 2019-10-24 Volkswagen Ag Internal combustion engine
DE102009053433A1 (en) * 2009-11-17 2011-05-19 Daimler Ag Suction tube section and suction system
US8991352B2 (en) 2009-11-17 2015-03-31 Mahle International Gmbh Intake manifold section and intake system

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