DE102006038831B4 - Internal combustion engine with recirculation of blow-by gases - Google Patents
Internal combustion engine with recirculation of blow-by gases Download PDFInfo
- Publication number
- DE102006038831B4 DE102006038831B4 DE102006038831.3A DE102006038831A DE102006038831B4 DE 102006038831 B4 DE102006038831 B4 DE 102006038831B4 DE 102006038831 A DE102006038831 A DE 102006038831A DE 102006038831 B4 DE102006038831 B4 DE 102006038831B4
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- Prior art keywords
- internal combustion
- combustion engine
- channel
- blow
- gases
- Prior art date
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Links
- 239000007789 gas Substances 0.000 title claims abstract description 49
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 34
- 238000012546 transfer Methods 0.000 claims abstract description 12
- 238000000926 separation method Methods 0.000 claims description 25
- 239000003921 oil Substances 0.000 description 25
- 238000013461 design Methods 0.000 description 7
- 238000009826 distribution Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Images
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
- 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
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/02—Arrangements of lubricant conduits
-
- 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
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
-
- 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
- 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
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
- F01M2013/0461—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with a labyrinth
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- 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
Brennkraftmaschine mit Rückführung von Blow-By-Gasen im geschlossenen System, wobei die Blow-By-Gase ausgehend vom Kurbelraum durch jeweils miteinander in Wirkverbindung stehende und im Zylinderkurbelgehäuse, im Zylinderblock und im Zylinderkopf ausgestaltete Strömungskanäle dem Ansaugsystem der Brennkraftmaschine zugeführt werden, dadurch gekennzeichnet, dass im Strömungsverlauf nach dem Kurbelraum (1) ein Abscheideraum (5) angeordnet ist, der über einen Kanal (6) mit einem Sammelraum (7) verbunden ist, von dem mindestens zwei Überleitkanäle (9) abzweigen, die jeweils in eine Stufenbohrung (10) übergehen, die in ein Ansaugrohr (4) des Ansaugsystems mündet, wobei der Sammelraum (7) als eine nach oben offene Rinne ausgestaltet und vom Zylinderkopf (3) abdeckbar ist.Internal combustion engine with recirculation of blow-by gases in a closed system, wherein the blow-by gases are supplied to the intake system of the internal combustion engine, starting from the crank chamber by respective actively interacting and configured in the cylinder crankcase, in the cylinder block and in the cylinder head, characterized in that a separating chamber (5) is arranged in the flow path after the crank space (1), which is connected via a channel (6) to a collecting space (7) from which at least two transfer ducts (9) branch off, each into a stepped bore (10 ), which opens into an intake pipe (4) of the intake system, wherein the collecting space (7) designed as an upwardly open channel and the cylinder head (3) can be covered.
Description
Die Erfindung betrifft eine Brennkraftmaschine mit Rückführung von Blow-By-Gasen im geschlossenen System, wobei die Blow-By-Gase ausgehend vom Kurbelraum durch jeweils miteinander in Wirkverbindung stehende und im Zylinderkurbelgehäuse, im Zylinderblock und im Zylinderkopf ausgestaltete Strömungskanäle dem Ansaugsystem der Brennkraftmaschine zugeführt werden.The invention relates to an internal combustion engine with recirculation of blow-by gases in a closed system, wherein the blow-by gases are supplied from the crank chamber to the intake system of the internal combustion engine by each in operative connection and configured in the cylinder crankcase, in the cylinder block and in the cylinder head flow channels ,
Beim Betrieb von Brennkraftmaschinen gelangen als „Blow-By-Gas” bezeichnete Verbrennungsgase aus dem Brennraum des Zylinders infolge von Undichtigkeiten zwischen dem Kolben bzw. den Kolbenringen und der Zylinderwand in den Kurbelraum. Im Kurbelraum vermischen sich die Blow-By-Gase zwangsläufig mit Motoröl, das hier in Form von Öltröpfchen oder Ölnebel vorhanden ist. Zur Vermeidung eines nachteiligen Druckaufbaus wird der im Kurbelgehäuse ausgestaltete Kurbelraum von Blow-By-Gasen entlüftet. Bei modernen Brennkraftmaschinen wird diese Entlüftung aus emissions-, verbrauchs- und gesetzlich bedingten Aspekten mit geschlossenen Systemen realisiert, indem die Blow-By-Gase dem Ansaugsystem der Brennkraftmaschine zugeführt werden. Um einen Öleintritt in das Ansaugsystem zu vermeiden, werden im Strömungsweg vom Kurbelgehäuse zum Ansaugrohr Ölabscheider angeordnet, für die bereits zahlreiche Konstruktionen bekannt sind.During operation of internal combustion engines, combustion gases referred to as "blow-by gas" pass out of the combustion chamber of the cylinder as a result of leaks between the piston or the piston rings and the cylinder wall into the crank chamber. In the crankcase, the blow-by gases inevitably mix with engine oil, which is present here in the form of oil droplets or oil mist. To avoid an adverse pressure build-up, the crankcase designed in the crankcase is vented by blow-by gases. In modern internal combustion engines, this venting from emissions, consumption and legal aspects is realized with closed systems by the blow-by gases are supplied to the intake system of the internal combustion engine. In order to prevent oil from entering the intake system, oil separators are arranged in the flow path from the crankcase to the intake manifold, for which numerous designs are already known.
Aus
Unabhängig von der konkreten Ausgestaltung der Ölabscheider werden Blow-By-Gase im Strömungsweg zwischen Kurbelgehäuse und Ansaugrohr überwiegend in Verschlauchungen geführt, die allerdings eine aufwendige Montage erfordern und einen erheblichen freien Bauraum beanspruchen. Weiterhin ergeben sich Probleme hinsichtlich der Einfriersicherheit. Aufgrund dieser Nachteile ist bereits mehrfach vorgeschlagen worden, die Blow-By-Gase zumindest abschnittsweise nicht in einer Verschlauchung zu führen, sondern innerhalb der eigentlichen Brennkraftmaschine.Regardless of the specific design of the oil separator blow-by gases in the flow path between the crankcase and intake manifold are mainly conducted in hoses, however, require a complex assembly and claim a significant amount of space. Furthermore, there are problems with the freezing security. Because of these disadvantages, it has already been proposed several times, the blow-by gases at least partially not to lead in a tubing, but within the actual internal combustion engine.
So beschreibt
Eine Brennkraftmaschine gemäß dem Stand der Technik kann im Zylinderkopf ebenfalls einen Strömungskanal für Blow-By-Gase aufweisen. In diesem Strömungskanal sind mehrere Umlenkbereiche für die Gasströmung ausgestaltet, die beim Aufprall ölhaltiger Blow-By-Gase eine Abscheidung von Ölteilchen bewirken. Somit wird dieser im Zylinderkopf angeordnete Kanal neben der Funktion als Gasführung auch als Ölabscheider wirksam.An internal combustion engine according to the prior art may also have a flow channel for blow-by gases in the cylinder head. In this flow channel a plurality of deflection regions are designed for the gas flow, which cause the deposition of oil particles on impact of oily blow-by gases. Thus, this arranged in the cylinder head channel in addition to the function as a gas guide also effective as an oil separator.
Die
Aus
In
Aus
Aufgabe der Erfindung ist es, eine technische Lösung zu schaffen, die mit geringem Herstellungs- und Montageaufwand eine einfriersichere Rückführung von Blow-By-Gasen in das Ansaugsystem und eine gleichzeitig gute Ölabscheidung ermöglicht.The object of the invention is to provide a technical solution that enables a low-free return of blow-by gases in the intake and a good oil separation with low manufacturing and assembly costs.
Diese Aufgabe wird gelöst, indem im Strömungsverlauf nach dem Kurbelraum ein Abscheideraum angeordnet ist, der über einen Kanal mit einem Sammelraum verbunden ist, von dem mindestens zwei Überleitkanäle abzweigen, die jeweils in eine Stufenbohrung übergehen, die in ein Ansaugrohr mündet. Vorteilhafte Ausgestaltungen sind Gegenstand der abhängigen Ansprüche, deren technische Merkmale und vorteilhaften Wirkungen im Ausführungsbeispiel näher beschrieben werden.This object is achieved by a separation chamber is arranged in the flow path to the crank chamber, which is connected via a channel to a plenum, branch off from the at least two transfer ducts, which each pass into a stepped bore, which opens into a suction pipe. Advantageous embodiments are the subject of the dependent claims, the technical features and advantageous effects are described in more detail in the embodiment.
Die erfindungsgemäße technische Lösung erfordert im Vergleich zu bereits bekannten Konstruktionen einen lediglich geringen Herstellungs- und Montageaufwand. Dabei erfolgt die Führung der Blow-By-Gase vollständig in bereits beim Herstellungsprozess von Zylinderkurbelgehäuse, Zylinderblock, Zylinderkopf und ggf. Zylinderkopfhaube gegossenen Kanälen. Es wird eine Einzeleinleitung für jeden Zylinder in der Flanschfläche des Saugrohres realisiert, wobei eine Verteilung auf die einzelnen Zylinder durch eine entsprechend modifizierte Dimensionierung sehr gut beeinflussbar ist. Auf bauraumaufwendige Verschlauchungen kann weitgehend verzichtet werden, lediglich bei einer Anwendung für Brennkraftmaschinen mit Abgasturbolader ist eine kurze Schlauchverbindung vorgesehen. Unabhängig von der konkreten Ausgestaltung wird eine kostengünstige und einfriersichere Führung der Blow-By-Gase von der Entnahmestelle am Zylinderkurbelgehäuse zum Ansaugrohr mit guter Gleichverteilung für jeden einzelnen Zylinder bzw. zum Abgasturbolader erreicht.The technical solution according to the invention requires in comparison to already known constructions only a small manufacturing and assembly costs. The guidance of the blow-by gases is carried out completely in already cast during the manufacturing process of the cylinder crankcase, cylinder block, cylinder head and possibly cylinder head cover channels. It is realized a single introduction for each cylinder in the flange of the suction pipe, with a distribution to the individual cylinders can be influenced very well by a correspondingly modified dimensions. Can be largely dispensed with space-consuming tubing, only in an application for internal combustion engines with turbocharger a short hose connection is provided. Regardless of the specific embodiment, a cost-effective and freezing-safe guidance of the blow-by gases is achieved from the removal point on the cylinder crankcase to the intake pipe with good uniform distribution for each individual cylinder or exhaust gas turbocharger.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird nachfolgend beschrieben. Es zeigen:An embodiment of the invention is illustrated in the drawing and will be described below. Show it:
In der Zeichnung ist ein Ausschnitt einer Brennkraftmaschine mit den im vorliegenden Sachverhalt wesentlichen Baugruppen dargestellt, mit denen die Blow-By-Gase im geschlossenen System ausgehend von einem im Zylinderkurbelgehäuse ausgestalteten Kurbelraum
In
Der Abscheideraum
Aus
Am Austrittsquerschnitt zweigen vom Sammelraum
Die bisher beschriebene Ausführung betrifft Brennkraftmaschinen mit Saugrohrbetrieb.The embodiment described so far relates to internal combustion engines with Saugrohrbetrieb.
Bei einer Anwendung für aufgeladene Brennkraftmaschinen mit Abgasturbolader weisen die den Überleitkanälen
Gemäß
Unabhängig von der jeweils konkreten Modifizierung der erfindungsgemäßen technischen Lösung wird durch die fast vollständige Führung der Blow-By-Gase innerhalb von Bauteilen der Brennkraftmaschine, durch die großen realisierbaren Querschnitte und durch die hohen Betriebstemperaturen der an der Führung beteiligten Bauteile sowohl eine optimale Nutzung des verfügbaren Bauraums als auch eine große Einfriersicherheit erzielt.Regardless of the respective specific modification of the technical solution according to the invention is due to the almost complete management of the blow-by gases within components of the internal combustion engine, through the large realizable cross sections and the high operating temperatures of the components involved in the leadership both an optimal use of the available Space as well as a large freezing achieved.
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE102006038831.3A DE102006038831B4 (en) | 2006-08-18 | 2006-08-18 | Internal combustion engine with recirculation of blow-by gases |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102006038831.3A DE102006038831B4 (en) | 2006-08-18 | 2006-08-18 | Internal combustion engine with recirculation of blow-by gases |
Publications (2)
Publication Number | Publication Date |
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DE102006038831A1 DE102006038831A1 (en) | 2008-02-21 |
DE102006038831B4 true DE102006038831B4 (en) | 2018-03-15 |
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DE102006038831.3A Active DE102006038831B4 (en) | 2006-08-18 | 2006-08-18 | Internal combustion engine with recirculation of blow-by gases |
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Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008024874B4 (en) * | 2008-05-23 | 2016-12-29 | Audi Ag | Internal combustion engine with a crankcase having a ventilation |
JP5235512B2 (en) * | 2008-06-10 | 2013-07-10 | 愛知機械工業株式会社 | Blowby gas recirculation structure and internal combustion engine |
FR2949823B1 (en) * | 2009-09-04 | 2013-05-10 | Mark Iv Systemes Moteurs Sa | DISTRIBUTOR INTEGRATING A GAS DRAINAGE CIRCUIT OF THE CARTER AND VEHICLE COMPRISING SUCH A DIVIDER |
DE102014011355A1 (en) | 2014-07-30 | 2016-02-04 | Neander Motors Ag | Reciprocating internal combustion engine |
Citations (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3341359A1 (en) | 1982-11-15 | 1984-05-17 | Honda Giken Kogyo K.K., Tokio/Tokyo | Internal combustion engine with passages for blow-by gas or mixture |
US4602607A (en) | 1985-02-25 | 1986-07-29 | General Motors Corporation | Internal crankcase ventilation system with easily accessible PCV valve |
GB2187791A (en) | 1986-03-15 | 1987-09-16 | Austin Rover Group | I.c. engine passages communicating the crankcase and valve gear regions |
DE3704567A1 (en) | 1987-02-13 | 1988-08-25 | Kloeckner Humboldt Deutz Ag | Return line for leakage gases from the crankcase |
US5069192A (en) | 1989-10-24 | 1991-12-03 | Nissan Motor Company, Ltd. | Internal combustion engine with crankcase ventilation system |
EP0525967A1 (en) | 1991-07-24 | 1993-02-03 | Rover Group Limited | A method of assembling an internal combustion engine |
GB2260365A (en) | 1991-10-03 | 1993-04-14 | Jaguar Cars | Oil Separation from i.c. engine crankcase gases |
DE4038509C2 (en) | 1990-12-03 | 1993-09-09 | Filterwerk Mann & Hummel Gmbh, 71638 Ludwigsburg, De | |
DE69100152T2 (en) | 1990-03-22 | 1994-02-10 | Citroen Sa(Automobiles) | Intake and oil separation device for an internal combustion engine and machine provided with this device. |
DE19747740A1 (en) | 1996-11-29 | 1998-06-10 | Suzuki Motor Co | Through-gas return channel in cylinder head and block of engine |
DE19703771C1 (en) | 1997-02-01 | 1998-06-25 | Daimler Benz Ag | Ventilation device for a crankcase of an internal combustion engine |
DE19924602A1 (en) | 1998-05-30 | 1999-12-02 | Suzuki Motor Co | Exhaust gas path structure for internal combustion engine |
US20020014229A1 (en) | 2000-07-11 | 2002-02-07 | Tohru Nishi | Oil separator structure of internal combustion engine |
DE10125312A1 (en) | 2000-06-12 | 2002-02-28 | Gen Motors Corp | Integral PCV system |
DE10042462A1 (en) | 2000-08-29 | 2002-03-14 | Iav Gmbh | Ventilation system for crankcase of internal combustion engine has pressure regulating valve that admits blow=by gases into supply lines to flow into suction tract near inlet valve of suction pipe |
DE10131004A1 (en) | 2001-06-27 | 2003-01-09 | Mann & Hummel Filter | Method for recycling crankcase gasses into the inlet manifold of an engine has an internal wall with ducts to evenly mix the gasses with fresh air |
EP0918143B1 (en) | 1997-11-24 | 2003-08-13 | Ford Global Technologies, Inc. | Internal combustion engine |
DE10320493A1 (en) | 2003-05-08 | 2004-12-02 | Volkswagen Ag | Combustion engine with crankcase ventilation has head cover ports connected to oil separator inlet, outlet so blow-by gas flows from crankcase via hollow chamber, oil separator to clean air path |
EP1183445B1 (en) | 1999-06-07 | 2004-12-15 | Volvo Personvagnar AB | Internal combustion engine |
DE102004012160A1 (en) | 2004-03-12 | 2005-09-29 | Adam Opel Ag | Crankcase ventilation arrangement involves crankcase, cylinder head, cylinder head cover, all for an automotive vehicle, with cylinder head cover housing with at least one inner space |
-
2006
- 2006-08-18 DE DE102006038831.3A patent/DE102006038831B4/en active Active
Patent Citations (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3341359A1 (en) | 1982-11-15 | 1984-05-17 | Honda Giken Kogyo K.K., Tokio/Tokyo | Internal combustion engine with passages for blow-by gas or mixture |
US4602607A (en) | 1985-02-25 | 1986-07-29 | General Motors Corporation | Internal crankcase ventilation system with easily accessible PCV valve |
GB2187791A (en) | 1986-03-15 | 1987-09-16 | Austin Rover Group | I.c. engine passages communicating the crankcase and valve gear regions |
DE3704567A1 (en) | 1987-02-13 | 1988-08-25 | Kloeckner Humboldt Deutz Ag | Return line for leakage gases from the crankcase |
US5069192A (en) | 1989-10-24 | 1991-12-03 | Nissan Motor Company, Ltd. | Internal combustion engine with crankcase ventilation system |
DE69100152T2 (en) | 1990-03-22 | 1994-02-10 | Citroen Sa(Automobiles) | Intake and oil separation device for an internal combustion engine and machine provided with this device. |
DE4038509C2 (en) | 1990-12-03 | 1993-09-09 | Filterwerk Mann & Hummel Gmbh, 71638 Ludwigsburg, De | |
EP0525967A1 (en) | 1991-07-24 | 1993-02-03 | Rover Group Limited | A method of assembling an internal combustion engine |
GB2260365A (en) | 1991-10-03 | 1993-04-14 | Jaguar Cars | Oil Separation from i.c. engine crankcase gases |
DE19747740A1 (en) | 1996-11-29 | 1998-06-10 | Suzuki Motor Co | Through-gas return channel in cylinder head and block of engine |
DE19703771C1 (en) | 1997-02-01 | 1998-06-25 | Daimler Benz Ag | Ventilation device for a crankcase of an internal combustion engine |
EP0918143B1 (en) | 1997-11-24 | 2003-08-13 | Ford Global Technologies, Inc. | Internal combustion engine |
DE19924602A1 (en) | 1998-05-30 | 1999-12-02 | Suzuki Motor Co | Exhaust gas path structure for internal combustion engine |
EP1183445B1 (en) | 1999-06-07 | 2004-12-15 | Volvo Personvagnar AB | Internal combustion engine |
DE10125312A1 (en) | 2000-06-12 | 2002-02-28 | Gen Motors Corp | Integral PCV system |
US20020014229A1 (en) | 2000-07-11 | 2002-02-07 | Tohru Nishi | Oil separator structure of internal combustion engine |
US6431159B2 (en) | 2000-07-11 | 2002-08-13 | Honda Giken Kogyo Kabushiki Kaisha | Oil separator structure of internal combustion engine |
DE10042462A1 (en) | 2000-08-29 | 2002-03-14 | Iav Gmbh | Ventilation system for crankcase of internal combustion engine has pressure regulating valve that admits blow=by gases into supply lines to flow into suction tract near inlet valve of suction pipe |
DE10131004A1 (en) | 2001-06-27 | 2003-01-09 | Mann & Hummel Filter | Method for recycling crankcase gasses into the inlet manifold of an engine has an internal wall with ducts to evenly mix the gasses with fresh air |
DE10320493A1 (en) | 2003-05-08 | 2004-12-02 | Volkswagen Ag | Combustion engine with crankcase ventilation has head cover ports connected to oil separator inlet, outlet so blow-by gas flows from crankcase via hollow chamber, oil separator to clean air path |
DE102004012160A1 (en) | 2004-03-12 | 2005-09-29 | Adam Opel Ag | Crankcase ventilation arrangement involves crankcase, cylinder head, cylinder head cover, all for an automotive vehicle, with cylinder head cover housing with at least one inner space |
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