DE102010019931A1 - Combustion air prominent fluid conduit portion for combustion air system of internal combustion engine, has terminal for fluid conduit formed at bent tube to lead crank case ventilation gas - Google Patents

Combustion air prominent fluid conduit portion for combustion air system of internal combustion engine, has terminal for fluid conduit formed at bent tube to lead crank case ventilation gas Download PDF

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Publication number
DE102010019931A1
DE102010019931A1 DE102010019931A DE102010019931A DE102010019931A1 DE 102010019931 A1 DE102010019931 A1 DE 102010019931A1 DE 102010019931 A DE102010019931 A DE 102010019931A DE 102010019931 A DE102010019931 A DE 102010019931A DE 102010019931 A1 DE102010019931 A1 DE 102010019931A1
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Prior art keywords
combustion air
fluid line
fluid conduit
ventilation gas
leading fluid
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Ceased
Application number
DE102010019931A
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German (de)
Inventor
Uwe Elfers
Dr. Röpke Sven
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Volkswagen AG
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Volkswagen AG
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Publication date
Application filed by Volkswagen AG filed Critical Volkswagen AG
Priority to DE102010019931A priority Critical patent/DE102010019931A1/en
Publication of DE102010019931A1 publication Critical patent/DE102010019931A1/en
Ceased legal-status Critical Current

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Classifications

    • 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
    • F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
    • F02M25/06—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding lubricant vapours
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
    • F02M35/10137—Flexible ducts, e.g. bellows or hoses
    • 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
    • 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 portion (10) has a bent tube (12) for combustion air arranged in a manner that the combustion air in a conduit portion is deflected in a main flow direction around a predetermined angle of 30 degrees. A terminal (14) for a fluid conduit (16) is formed at the tube to lead crank case ventilation gas and arranged upstream of a compressor of a supercharger. An end (18) of the conduit portion is fluidly connected with another conduit portion. Another end (20) of the former conduit portion is fluidly connected with an inlet of the compressor of the supercharger.

Description

Die Erfindung betrifft einen Verbrennungsluft führenden Fluidleitungsabschnitt für eine Verbrennungsluftanlage einer Brennkraftmaschine mit einem Anschluss für eine ein Kurbelgehäuseentlüftungsgas führende Fluidleitung, gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a combustion air leading fluid line section for a combustion air system of an internal combustion engine having a connection for a crankcase ventilation gas leading fluid line, according to the preamble of patent claim 1.

Aus der DE 689 05 353 T2 ist ein Kurbelgehäuseentlüftungssystem für eine aufgeladene Brennkraftmaschine bekannt, wobei eine Strömungsleitung für Kurbelgehäusegase mit einem Verdichter eines Turboladers verbunden ist. Hierbei erfolgt die Einleitung der Kurbelgehäusegase am Verdichter in einem Bereich, in dem ein vorbestimmtes Vakuumniveau von einem Verdichtereinlass abgezogen bzw. abgesaugt wird.From the DE 689 05 353 T2 For example, a supercharged engine crankcase ventilation system is known wherein a crankcase gas flow line is connected to a compressor of a turbocharger. In this case, the introduction of the crankcase gases takes place on the compressor in a region in which a predetermined vacuum level is drawn off or drawn off from a compressor inlet.

Der Erfindung liegt die Aufgabe zugrunde, eine Kurbelgehäuseentlüftung zu verbessern und gleichzeitig einen Bauraumbedarf hierfür verringern.The invention has for its object to improve a crankcase ventilation while reducing space requirements for this purpose.

Diese Aufgabe wird erfindungsgemäß durch einen Verbrennungsluft führenden Fluidleitungsabschnitt der o. g. Art mit den in Anspruch 1 gekennzeichneten Merkmalen gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind in den weiteren Ansprüchen beschrieben.This object is achieved by a combustion air leading fluid line section of o. G. Art solved with the features characterized in claim 1. Advantageous embodiments of the invention are described in the further claims.

Dazu ist es bei einem Verbrennungsluft führenden Fluidleitungsabschnitt der o. g. Art erfindungsgemäß vorgesehen, dass der Verbrennungsluft führende Fluidleitungsabschnitt einen Rohrbogen aufweist, welcher derart ausgebildet ist, dass dieser eine Hauptströmungsrichtung der Verbrennungsluft in dem Verbrennungslutf führenden Fluidleitungsabschnitt um einen vorbestimmten Winkel von mindestens 30° umlenkt, wobei der Anschluss für die ein Kurbelgehäuseentlüftungsgas führende Fluidleitung an dem Rohrbogen ausgebildet ist.For this purpose, it is at a combustion air leading fluid line section of o. G. Art provided according to the invention that the combustion air leading fluid line section has a pipe bend which is designed such that it deflects a main flow direction of the combustion air in the Verbrennungslutf leading fluid line section by a predetermined angle of at least 30 °, wherein the connection for the crankcase ventilation gas leading fluid line to the Pipe bend is formed.

Dies hat den Vorteil, dass sich durch die Strömungsablenkung an der Einleitstelle für das Kurbelgehäuseentlüftungsgas in den Fluidleitungsabschnitt der Verbrennungsluftanlage ein großer Strömungsunterdruck ergibt, welcher ein Absaugen von dem Kurbelgehäuseentlüftungsgas aus dem Kurbelgehäuse unterstützt.This has the advantage that due to the flow deflection at the point of introduction of the crankcase ventilation gas into the fluid line section of the combustion air system results in a large flow negative pressure, which assists a suction of the crankcase ventilation gas from the crankcase.

Eine zusätzliche Erhöhung des Strömungsunterdruckes an der Einleitstelle für Kurbelgehäusegase erzielt man dadurch, dass in dem Verbrennungsluft führenden Fluidleitungsabschnitt ein Verdichter eines Abgasturboladers angeordnet ist, wobei der Anschluss für die ein Kurbelgehäuseentlüftungsgas führende Fluidleitung stromauf des Verdichters angeordnet ist.An additional increase in the flow underpressure at the point of introduction of crankcase gases is achieved in that a compressor of an exhaust gas turbocharger is arranged in the combustion air leading fluid line section, wherein the connection for the crankcase vent gas leading fluid line is arranged upstream of the compressor.

Eine besonders gute Abführung von Kurbelgehäusegasen in den Verbrennungsluft führenden Fluidleitungsabschnitt erzielt man dadurch, dass der Rohrbogen derart ausgebildet ist, dass dieser eine Hauptströmungsrichtung der Verbrennungsluft um einen vorbestimmten Winkel von mindestens 35°, 40°, 45°, 50°, 55°, 60°, 65°, 70°, 75°, 80°, 85°, 90°, 95°, 100°, 105°, 110°, 115° oder 120° umlenkt.A particularly good discharge of crankcase gases in the combustion air leading fluid line section is achieved in that the pipe bend is formed such that this a main flow direction of the combustion air by a predetermined angle of at least 35 °, 40 °, 45 °, 50 °, 55 °, 60 °, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115 or 120 degrees.

Die Erfindung wird im Folgenden anhand der Zeichnung näher erläutert. Diese zeigt in der einzigen Figur eine beispielhafte Ausführungsform eines erfindungsgemäßen Verbrennungsluft führenden Fluidleitungsabschnittes für eine Verbrennungsluftanlage einer Brennkraftmaschine in perspektivischer Ansicht.The invention will be explained in more detail below with reference to the drawing. This shows in the single figure an exemplary embodiment of a combustion air leading fluid line portion according to the invention for a combustion air system of an internal combustion engine in a perspective view.

Die in der einzigen Figur beispielhaft dargestellte, bevorzugte Ausführungsform eines erfindungsgemäßen Verbrennungsluft führenden Fluidleitungsabschnittes 10 für eine Verbrennungsluftanlage einer Brennkraftmaschine umfasst einen Rohrbogen 12, welcher die in dem Fluidleitungsabschnitt 10 geführte Strömung der Verbrennungsluft um einen vorbestimmten Winkel von etwa 70° umlenkt. Dieser Winkel von 70° ist lediglich beispielhaft und es ist ebenfalls bevorzugt, dass der Rohrbogen 12 derart ausgebildet ist, dass dieser Winkel 90° oder mehr beträgt.The exemplified in the single figure, preferred embodiment of a combustion air leading fluid line section according to the invention 10 for a combustion air system of an internal combustion engine comprises a pipe bend 12 which is in the fluid line section 10 guided flow of the combustion air by a predetermined angle of about 70 ° deflects. This angle of 70 ° is merely exemplary and it is also preferred that the pipe bend 12 is formed such that this angle is 90 ° or more.

An dem Rohrbogen 12 ist erfindungsgemäß ein Anschluss 14 für eine ein Kurbelgehäuseentlüftungsgas führende Fluidleitung 16 ausgebildet, so dass das von der Fluidleitung 16 geleitete Kurbelgehäuseentlüftungsgas an einer Stelle in den Fluidleitungsabschnitt 10 eingeleitet wird, an der sich aufgrund der Strömungsumlenkung und der damit einhergehenden erhöhten Strömungsgeschwindigkeit ein Unterdruck ergibt. Dieser Unterdruck unterstützt die Abführung von Kurbelgehäuseentlüftungsgasen aus dem Kurbelgehäuse und das Einleiten dieser Kurbelgehäuseentlüftungsgase in die in dem Fluidleitungsabschnitt 10 strömende Verbrennungsluft.At the pipe bend 12 is a connection according to the invention 14 for a crankcase ventilation gas leading fluid line 16 is formed, so that from the fluid line 16 directed crankcase ventilation gas at a location in the fluid line section 10 is initiated, resulting in due to the flow deflection and the associated increased flow velocity, a negative pressure. This negative pressure assists in the discharge of crankcase ventilation gases from the crankcase and the introduction of these crankcase ventilation gases into those in the fluid line section 10 flowing combustion air.

Ein erstes Ende 18 des Verbrennungsluft führenden Fluidleitungsabschnittes 10 ist mit einem weiteren, nicht dargestellten Fluidleitungsabschnitt fluidleitend verbunden, welcher von einem Luftfilter kommt. Ein zweites Ende 20 des Verbrennungsluft führenden Fluidleitungsabschnittes 10 ist fluidleitend mit einem nicht dargestellten Einlass eines Verdichters eines Abgasturboladers verbunden.A first end 18 the combustion air leading fluid line section 10 is fluidly connected to a further, not shown, fluid line section, which comes from an air filter. A second end 20 the combustion air leading fluid line section 10 is fluidly connected to an inlet, not shown, of a compressor of an exhaust gas turbocharger.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1010
Verbrennungsluft führender FluidleitungsabschnittCombustion air leading fluid line section
1212
RohrbogenElbows
1414
Anschluss für die ein Kurbelgehäuseentlüftungsgas führende Fluidleitung 16 Connection for a crankcase ventilation gas leading fluid line 16
16 16
Kurbelgehäuseentlüftungsgas führende FluidleitungCrankcase ventilation gas leading fluid line
1818
erstes Ende des Verbrennungsluft führenden Fluidleitungsabschnittes 10 first end of the combustion air leading fluid line section 10
2020
zweites Ende des Verbrennungsluft führenden Fluidleitungsabschnittes 10 second end of the combustion air leading fluid line section 10

ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION

Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Zitierte PatentliteraturCited patent literature

  • DE 68905353 T2 [0002] DE 68905353 T2 [0002]

Claims (3)

Verbrennungsluft führender Fluidleitungsabschnitt (10) für eine Verbrennungsluftanlage einer Brennkraftmaschine mit einem Anschluss (14) für eine ein Kurbelgehäuseentlüftungsgas führende Fluidleitung (16), dadurch gekennzeichnet, dass der Verbrennungsluft führende Fluidleitungsabschnitt (10) einen Rohrbogen (12) aufweist, welcher derart ausgebildet ist, dass dieser eine Hauptströmungsrichtung der Verbrennungsluft in dem Verbrennungsluft führenden Fluidleitungsabschnitt (10) um einen vorbestimmten Winkel von mindestens 30° umlenkt, wobei der Anschluss (14) für die ein Kurbelgehäuseentlüftungsgas führende Fluidleitung (16) an dem Rohrbogen (12) ausgebildet ist.Combustion air leading fluid line section ( 10 ) for a combustion air system of an internal combustion engine with a connection ( 14 ) for a crankcase ventilation gas leading fluid line ( 16 ), characterized in that the combustion air leading fluid line section ( 10 ) a pipe bend ( 12 ) which is formed to have a main flow direction of the combustion air in the combustion air-conducting fluid passage portion (FIG. 10 ) deflects by a predetermined angle of at least 30 °, wherein the connection ( 14 ) for the crankcase ventilation gas leading fluid line ( 16 ) on the pipe bend ( 12 ) is trained. Verbrennungsluft führender Fluidleitungsabschnitt (10) nach Anspruch 1, dadurch gekennzeichnet, dass in dem Verbrennungsluft führenden Fluidleitungsabschnitt (10) ein Verdichter eines Abgasturboladers angeordnet ist, wobei der Anschluss (14) für die ein Kurbelgehäuseentlüftungsgas führende Fluidleitung (16) stromauf des Verdichters angeordnet ist.Combustion air leading fluid line section ( 10 ) according to claim 1, characterized in that in the combustion air leading fluid line section ( 10 ) a compressor of an exhaust gas turbocharger is arranged, wherein the connection ( 14 ) for the crankcase ventilation gas leading fluid line ( 16 ) is arranged upstream of the compressor. Verbrennungsluft führender Fluidleitungsabschnitt (10) nach mindestens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Rohrbogen (12) derart ausgebildet ist, dass dieser eine Hauptströmungsrichtung der Verbrennungsluft um einen vorbestimmten Winkel von mindestens 35°, 40°, 45°, 50°, 55°, 60°, 65°, 70°, 75°, 80°, 85°, 90°, 95°, 100°, 105°, 110°, 115° oder 120° umlenkt.Combustion air leading fluid line section ( 10 ) according to at least one of the preceding claims, characterized in that the pipe bend ( 12 ) such that it has a main flow direction of the combustion air at a predetermined angle of at least 35 °, 40 °, 45 °, 50 °, 55 °, 60 °, 65 °, 70 °, 75 °, 80 °, 85 °, 90 °, 95 °, 100 °, 105 °, 110 °, 115 ° or 120 ° deflects.
DE102010019931A 2010-05-08 2010-05-08 Combustion air prominent fluid conduit portion for combustion air system of internal combustion engine, has terminal for fluid conduit formed at bent tube to lead crank case ventilation gas Ceased DE102010019931A1 (en)

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DE102010019931A DE102010019931A1 (en) 2010-05-08 2010-05-08 Combustion air prominent fluid conduit portion for combustion air system of internal combustion engine, has terminal for fluid conduit formed at bent tube to lead crank case ventilation gas

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DE102010019931A DE102010019931A1 (en) 2010-05-08 2010-05-08 Combustion air prominent fluid conduit portion for combustion air system of internal combustion engine, has terminal for fluid conduit formed at bent tube to lead crank case ventilation gas

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130112298A1 (en) * 2011-01-21 2013-05-09 Yoshihide Nakae Work vehicle
DE202014007835U1 (en) * 2014-09-27 2016-01-05 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) internal combustion engine
US20180266309A1 (en) * 2017-03-20 2018-09-20 Advance Flow Engineering, Inc. Vent insert
DE112014004379B4 (en) * 2013-10-30 2018-12-27 Scania Cv Ab Arrangement for sucking off particles trapped in an air cleaner and a motor vehicle comprising such an arrangement

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60149869U (en) * 1984-03-15 1985-10-04 トヨタ自動車株式会社 Fuel injection engine surge tank
JPS63132814U (en) * 1987-02-21 1988-08-30
DE68905353T2 (en) 1988-04-06 1993-06-24 American Telephone & Telegraph METHOD AND DEVICE FOR APPLYING SOLDER FLUID TO A SUBSTRATE.
JPH0681624A (en) * 1992-09-04 1994-03-22 Toyota Autom Loom Works Ltd Engine air cleaner hose with shield-type crankcase emission control system
CA2198168A1 (en) * 1996-02-21 1997-08-22 Richard D. Johnson Engine breather device with cooling baffle
DE19929876A1 (en) * 1999-06-29 2001-01-11 Porsche Ag Internal combustion engine with a ventilation device
JP2003254178A (en) * 2002-02-28 2003-09-10 Denso Corp Intake device of internal combustion engine
JP2003278523A (en) * 2002-03-26 2003-10-02 Hino Motors Ltd Diesel engine
DE10320857A1 (en) * 2003-05-09 2004-11-25 Daimlerchrysler Ag IC engine with direct fuel injection has ventilation pipe for crankcase controlled by throttle of air intake unit for effective ventilation of engine housing
JP2006063884A (en) * 2004-08-26 2006-03-09 Mazda Motor Corp Engine blow-by gas recirculation device
WO2006135327A1 (en) * 2005-06-15 2006-12-21 Volvo Lastvagnar Ab Turbocharger intake air chamber provided with air inlet from crankcase blowby ventilation (ccv)
JP2009091904A (en) * 2007-10-03 2009-04-30 Mazda Motor Corp Connection structure
US20090126670A1 (en) * 2007-11-19 2009-05-21 Denso Corporation Air intake apparatus for internal combustion engine
WO2009084144A1 (en) * 2007-12-27 2009-07-09 Toyota Jidosha Kabushiki Kaisha Intake pipe structure of internal combustion engine

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60149869U (en) * 1984-03-15 1985-10-04 トヨタ自動車株式会社 Fuel injection engine surge tank
JPS63132814U (en) * 1987-02-21 1988-08-30
DE68905353T2 (en) 1988-04-06 1993-06-24 American Telephone & Telegraph METHOD AND DEVICE FOR APPLYING SOLDER FLUID TO A SUBSTRATE.
JPH0681624A (en) * 1992-09-04 1994-03-22 Toyota Autom Loom Works Ltd Engine air cleaner hose with shield-type crankcase emission control system
CA2198168A1 (en) * 1996-02-21 1997-08-22 Richard D. Johnson Engine breather device with cooling baffle
DE19929876A1 (en) * 1999-06-29 2001-01-11 Porsche Ag Internal combustion engine with a ventilation device
JP2003254178A (en) * 2002-02-28 2003-09-10 Denso Corp Intake device of internal combustion engine
JP2003278523A (en) * 2002-03-26 2003-10-02 Hino Motors Ltd Diesel engine
DE10320857A1 (en) * 2003-05-09 2004-11-25 Daimlerchrysler Ag IC engine with direct fuel injection has ventilation pipe for crankcase controlled by throttle of air intake unit for effective ventilation of engine housing
JP2006063884A (en) * 2004-08-26 2006-03-09 Mazda Motor Corp Engine blow-by gas recirculation device
WO2006135327A1 (en) * 2005-06-15 2006-12-21 Volvo Lastvagnar Ab Turbocharger intake air chamber provided with air inlet from crankcase blowby ventilation (ccv)
JP2009091904A (en) * 2007-10-03 2009-04-30 Mazda Motor Corp Connection structure
US20090126670A1 (en) * 2007-11-19 2009-05-21 Denso Corporation Air intake apparatus for internal combustion engine
WO2009084144A1 (en) * 2007-12-27 2009-07-09 Toyota Jidosha Kabushiki Kaisha Intake pipe structure of internal combustion engine

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130112298A1 (en) * 2011-01-21 2013-05-09 Yoshihide Nakae Work vehicle
US8555637B2 (en) * 2011-01-21 2013-10-15 Komatsu Ltd. Work vehicle
DE112014004379B4 (en) * 2013-10-30 2018-12-27 Scania Cv Ab Arrangement for sucking off particles trapped in an air cleaner and a motor vehicle comprising such an arrangement
DE202014007835U1 (en) * 2014-09-27 2016-01-05 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) internal combustion engine
US20180266309A1 (en) * 2017-03-20 2018-09-20 Advance Flow Engineering, Inc. Vent insert
US10648404B2 (en) * 2017-03-20 2020-05-12 Advanced Flow Engineering, Inc. Vent insert
US11125150B2 (en) 2017-03-20 2021-09-21 Advanced Flow Engineering, Inc. Vent insert
US11603792B2 (en) 2017-03-20 2023-03-14 Advanced Flow Engineering Inc. Vent insert

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Effective date: 20121225