DE19633603C1 - Internal combustion engine with cylinder head and cylinders - Google Patents

Internal combustion engine with cylinder head and cylinders

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Publication number
DE19633603C1
DE19633603C1 DE19633603A DE19633603A DE19633603C1 DE 19633603 C1 DE19633603 C1 DE 19633603C1 DE 19633603 A DE19633603 A DE 19633603A DE 19633603 A DE19633603 A DE 19633603A DE 19633603 C1 DE19633603 C1 DE 19633603C1
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Germany
Prior art keywords
channel
inlet
exhaust gas
duct
roller
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
DE19633603A
Other languages
German (de)
Inventor
Michael Dipl Ing Kuehn
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Mercedes Benz Group AG
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Daimler Benz AG
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Priority to DE19633603A priority Critical patent/DE19633603C1/en
Application granted granted Critical
Publication of DE19633603C1 publication Critical patent/DE19633603C1/en
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Expired - Fee Related legal-status Critical Current

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Classifications

    • 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
    • F02M35/10078—Connections of intake systems to the engine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/44—Multiple-valve gear or arrangements, not provided for in preceding subgroups, e.g. with lift and different valves
    • F01L1/443—Multiple-valve gear or arrangements, not provided for in preceding subgroups, e.g. with lift and different valves comprising a lift valve and at least one rotary valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B31/00—Modifying induction systems for imparting a rotation to the charge in the cylinder
    • F02B31/08—Modifying induction systems for imparting a rotation to the charge in the cylinder having multiple air inlets
    • F02B31/085—Modifying induction systems for imparting a rotation to the charge in the cylinder having multiple air inlets having two inlet valves
    • 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
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
    • F02M26/21—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system with EGR valves located at or near the connection to the intake system
    • 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
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/52—Systems for actuating EGR valves
    • F02M26/64—Systems for actuating EGR valves the EGR valve being operated together with an intake air throttle
    • 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
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/65—Constructional details of EGR valves
    • F02M26/71—Multi-way valves
    • 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
    • F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
    • F02M35/10255—Arrangements of valves; Multi-way valves
    • 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
    • F02M35/108—Intake manifolds with primary and secondary intake passages
    • F02M35/1085—Intake manifolds with primary and secondary intake passages the combustion chamber having multiple intake valves
    • 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
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F02D2009/0201—Arrangements; Control features; Details thereof
    • F02D2009/0276—Throttle and EGR-valve operated together
    • 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
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
    • F02M26/20—Feeding recirculated exhaust gases directly into the combustion chambers or into the intake runners
    • 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
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/41—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories characterised by the arrangement of the recirculation passage in relation to the engine, e.g. to cylinder heads, liners, spark plugs or manifolds; characterised by the arrangement of the recirculation passage in relation to specially adapted combustion chambers
    • 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
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/65—Constructional details of EGR valves
    • F02M26/70—Flap valves; Rotary valves; Sliding valves; Resilient valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

For each inlet channel an inlet valve is provided. From an outlet channel branches an exhaust gas feed-back channel, which at least issues into one of the inlet channels. The exhaust gas feed-back channel and one of the inlet channels can be cut off. A roller slide (6) with a rotatable cut-off roller (7) is arranged in the inlet channel (3), which can be cut off, in the area of the mouth of the exhaust gas feed-back channel (5). This roller, dependent upon the rotary position, with transition areas holds open the throughflow from the suction channel (1) through the inlet channel to the cylinder, frees the connection of the exhaust gas feed-back channel via the roller slide to the cylinder with the inlet channel cut off, and produces a total blocking of the exhaust gas feed-back channel and the inlet channel.

Description

Die Erfindung betrifft eine Brennkraftmaschine gemäß dem Oberbegriff von Patentanspruch 1.The invention relates to an internal combustion engine according to the preamble of claim 1.

Eine Brennkraftmaschine dieser Art ist in der DE 38 28 742 A1 beschrieben. Dabei sind für jeden Zylinder zwei Einlaßventile mit dazugehörigen Einlaßkanälen vorgese­ hen. Durch ein Durchflußsteuerventil ist einer der beiden Einlaßkanäle absperrbar. In den absperrbaren Einlaßkanal mündet eine Abgasrückführleitung. Zur Re­ gelung der Abgasrückführung ist in der Abgasrückführ­ leitung ein Abgasrückführsteuerventil vorgesehen.An internal combustion engine of this type is in DE 38 28 742 A1 described. There are two for each cylinder Intake valves with associated intake ducts hen. Through a flow control valve, one of the both inlet channels can be shut off. In the lockable Inlet channel opens an exhaust gas recirculation line. To the right Exhaust gas recirculation is in the exhaust gas recirculation system line an exhaust gas recirculation control valve provided.

Eine Brennkraftmaschine dieser Art mit zwei Einlaßka­ nälen und einer Abgasrückführung hat den Nachteil, daß sie relativ aufwendig aufgebaut ist. So sind zwei Ab­ sperrglieder erforderlich und eine entsprechende Füh­ rung der Abgasrückführungsleitung. Nachteilig ist wei­ terhin auch, daß es bei einer Lasterhöhung zu einer unerwünscht hohen Abgaskonzentration im Brennraum kommt, die solange währt, bis das Abgas in den vorge­ lagerten Rohren und Kanälen ausgeblasen ist.An internal combustion engine of this type with two intake ports channel and exhaust gas recirculation has the disadvantage that it is relatively complex. So are two ab locking elements required and a corresponding guide Exhaust gas recirculation line. The disadvantage is white terhin also that with a load increase to a undesirably high exhaust gas concentration in the combustion chamber comes that lasts until the exhaust gas in the pre stored pipes and ducts is blown out.

Aus der DE 35 42 061 A1 und der DE 40 22 823 A1 sind Brennkraftmaschinen mit Walzenschieber zur Gaswechsel­ steuerung bekannt. Die Walzensteuerung regelt dabei anstelle von Ventilen den Gas- bzw. Frischlufteintritt in einen Zylinder.From DE 35 42 061 A1 and DE 40 22 823 A1  Internal combustion engines with roller valve for gas exchange control known. The roller control regulates instead of valves the gas or fresh air inlet in a cylinder.

Der Erfindung liegt die Aufgabe zugrunde, eine Brennkraftmaschine zu schaffen, bei der in einer Ausgestaltung mit zwei Ein­ laßkanälen und einer Abgasrückführleitung die Frisch­ luftzufuhr und die Regelung der Abgasrückführung auf einfache Weise erfolgen kann. Weiterhin soll ein gutes Regelverhalten erreicht werden.The invention is based on the object an internal combustion engine too create, in a configuration with two one let channels and an exhaust gas recirculation line the fresh air supply and the regulation of the exhaust gas recirculation can be done easily. Furthermore, a good one Control behavior can be achieved.

Diese Aufgabe wird bei einer gattungsgemäßen Einrichtung durch die im kenn­ zeichnenden Teil von Patentanspruch 1 genannten Merkmale gelöst.This task is in a generic device by the in the kenn drawing part of claim 1 mentioned features solved.

Eines der wesentlichen Vorteile der erfindungsgemäßen Anordnung des Walzenschiebers besteht darin, daß sich auf diese Weise sowohl die Abgasrückführung als auch die Frischluftzufuhr durch den absperrbaren Einlaßka­ nal regeln läßt. Dies bedeutet es sind nur eine einzi­ ge Ansteuerung und nur ein einziges Verstellglied er­ forderlich.One of the main advantages of the invention Arrangement of the roller valve is that this way both the exhaust gas recirculation as well the fresh air supply through the lockable inlet box nal can be regulated. This means there are only one control and only one actuator conducive.

Der erfindungsgemäße Walzenschieber läßt sich mit sei­ nem Gehäuse im Bedarfsfalle direkt am Zylinderkopf anordnen, weshalb kurze Wege für die Abgasrückführung vorhanden sind und jegliche Verrohrung entfallen kann. Gleichzeitig wird auf diese Weise ein gutes Instatio­ närverhalten erreicht, da sehr wenig Abgas in den Gas­ wechselorganen vorgelagert ist, so daß es bei einer Lasterhöhung nicht zu einer unerwünschten hohen Abgas­ konzentration im Brennraum kommt. Aufgrund der Anord­ nung und Ausgestaltung der erfindungsgemäßen Brenn­ kraftmaschine ist nämlich nur ein relativ geringes Volumen der abgasführenden Teile im Ansaugtrakt vor­ handen.The roller valve according to the invention can be with If necessary, a housing directly on the cylinder head arrange, which is why short distances for exhaust gas recirculation are present and all piping can be omitted. At the same time it becomes a good instatio achieved due to very little exhaust gas in the gas changing organs is upstream, so that it is in a Load increase does not lead to an undesirable high exhaust gas concentration comes in the combustion chamber. Because of the arrangement  tion and design of the focal invention The engine is only a relatively small one Volume of the exhaust gas-carrying parts in the intake tract act.

Ein weiterer Vorteil des erfindungsgemäßen Walzen­ schiebers besteht darin, daß bereits bei geringen Drehwinkeln sehr schnelle Regelstrecken aufgebaut wer­ den können. Dabei sind auch Übergangsbereiche vorhan­ den, so daß "harte" Zustandsänderungen mit den daraus resultierenden Nachteilen, z. B. beim Wiederzuschalten eines abgeschalteten Zylinders, wie es beim Stand der Technik der Fall ist, vermieden werden.Another advantage of the rolling according to the invention slider is that even at low Angle of rotation very fast controlled systems who built that can. There are also transition areas the so that "hard" state changes with the resulting resulting disadvantages, e.g. B. when switching on again a deactivated cylinder, as is the case with the Technology the case should be avoided.

Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen und aus dem nachfolgend anhand der Zeichnung prinzipmäßig be­ schriebenen Ausführungsbeispiel.Advantageous refinements and developments of Invention result from the dependent claims and from which in principle be based on the drawing below written embodiment.

Es zeigt:It shows:

Fig. 1 ausschnittsweise einen Schnitt durch eine Brennkraftmaschine im Bereich der Ansaugseite mit einem Ansaugkanal, zwei Einlaßkanälen und einem Walzenschieber in einem Einlaßkanal, die Fig. 1 a detail of a section through an internal combustion engine in the region of the intake side with an intake passage, the two intake channels and a rotary slide valve in an intake passage, which

Fig. 2 bis 4 verschiedene Stellungen der Absperr­ walze des Walzenschiebers. Fig. 2 to 4 different positions of the shut-off roller of the roller valve.

Ein Ansaugkanal 1 für einen Zylinder einer Brennkraft­ maschine, von der ausschnittsweise nur ein Teil eines Zylinderkopfes 2 dargestellt ist, verzweigt sich in zwei Einlaßkanäle 3 und 4. Im Zylinderkopf 2 befinden sich Verlängerungen der Einlaßkanäle 3 und 4 die je­ weils zu nicht dargestellten Einlaßventilen für einen Zylinder der Brennkraftmaschine führen. Die beiden Einlaßkanäle 3 und 4 sind in nicht näher dargestellter Weise an den Zylinderkopf 2 mit ihrem Gehäuse an­ geflanscht.An intake duct 1 for a cylinder of an internal combustion engine, of which only a part of a cylinder head 2 is shown in sections, branches into two intake ducts 3 and 4 . In the cylinder head 2 there are extensions of the intake ports 3 and 4, each of which leads to intake valves, not shown, for a cylinder of the internal combustion engine. The two intake ports 3 and 4 are flanged to the cylinder head 2 with their housing in a manner not shown.

In dem Gehäuse für die beiden Einlaßkanäle 3 und 4 befindet sich eine Abgasrückführungsleitung 5, deren Fortsetzung durch den Zylinderkopf 2 verläuft und ab­ gasseitig von einem Auslaßkanal des Zylinders ab­ zweigt. Der Einlaßkanal 3 ist mit einer kreisförmigen Erweiterung versehen, in der ein Walzenschieber 6 mit einer Absperrwalze 7 angeordnet ist. In die kreisför­ mige Erweiterung mündet auch die Abgasrückführleitung.In the housing for the two inlet channels 3 and 4 there is an exhaust gas recirculation line 5 , the continuation of which runs through the cylinder head 2 and branches off from the exhaust side of the cylinder on the gas side. The inlet channel 3 is provided with a circular extension in which a roller slide 6 with a shut-off roller 7 is arranged. The exhaust gas recirculation line also opens into the circular extension.

Durch den Einsatz der Abgasrückführung 5 in Verbindung mit dem absperrbaren Einlaßkanal 3 lassen sich durch eine Entdrosselung in Teillast Ladungswechselverluste vermindern, womit der effektive Wirkungsgrad des Mo­ tors erhöht wird. Damit jedoch hohe Abgasmengen ohne eine Verschlechterung des thermodynamischen Wirkungs­ grades zurückgeführt werden können, muß die Verbren­ nung durch eine starke Zylinderladungsbewegung unter­ stützt werden. Dies wird unter anderem durch die Ab­ sperrbarkeit des Einlaßkanales 3 erreicht. Dabei soll im allgemeinen auch das Abgas nicht homogen, sondern von der Frischladung getrennt in den Zylinder einge­ bracht werden. Durch eine Einleitung von Abgas in den gegenüber der Frischluftzufuhr abgesperrten Einlaßka­ nal 3 läßt sich dies erreichen.By using the exhaust gas recirculation 5 in connection with the lockable inlet duct 3 , gas exchange losses can be reduced by dethrottling in partial load, thus increasing the effective efficiency of the engine. However, in order for high amounts of exhaust gas to be returned without a deterioration in the thermodynamic efficiency, the combustion must be supported by a strong cylinder charge movement. This is achieved, inter alia, by the ability to block the inlet channel 3 . In general, the exhaust gas should not be brought into the cylinder homogeneously, but separately from the fresh charge. This can be achieved by introducing exhaust gas into the inlet duct 3 which is shut off from the fresh air supply.

In den Fig. 2 bis 4 sind drei verschiedene Stellun­ gen der Absperrwalze 7 in dem absperrbaren Einlaßkanal 3 dargestellt. In Figs. 2 to 4 three different Stellun are shown gene Absperrwalze 7 in the closable inlet channel 3.

Fig. 2 zeigt - ebenso wie Fig. 1 - die Stellung, in der beide Einlaßkanäle 3 und 4 mit Frischluft versorgt werden, wobei auch keine Abgasrückführung stattfindet. Wie aus der Fig. 2 ersichtlich ist, ist der Walzen­ schieber 7 mit einem Hauptdurchgangskanal 8 und einem rechtwinklig davon abzweigenden Nebenkanal 9 versehen. Durch die gewählte Stellung in der Fig. 2 kann Frisch­ gas aus dem Ansaugkanal 1 in den Einlaßkanal 3 und durch den Hauptdurchgangskanal 8 weiter zu dem nicht dargestellten Zylinder strömen. Der Abgaskanal 5 mün­ det in einem Winkelbereich von ca. 45° schräg in den Bereich der Absperrwalze in die Erweiterung des Gehäu­ ses ein. Der rechtwinklige zu dem Hauptdurchgangskanal 8 liegende Nebenkanal 9 befindet sich in Fig. 2 in Winkelstellung 0, weshalb in dieser Position der Ab­ gasrückführungskanal 5 abgesperrt ist. Fig. 2 shows - just like Fig. 1 - the position in which both inlet channels 3 and 4 are supplied with fresh air, with no exhaust gas recirculation also taking place. As can be seen from Fig. 2, the roller slide 7 is provided with a main passage 8 and a branch channel 9 branching at right angles therefrom. Through the selected position in FIG. 2, fresh gas can flow from the intake duct 1 into the inlet duct 3 and through the main passage duct 8 to the cylinder, not shown. The exhaust duct 5 mün det in an angular range of approximately 45 ° in the area of the shut-off roller in the expansion of the housing. The right-angled to the main through-channel 8 secondary channel 9 is in Fig. 2 in the angular position 0, which is why in this position the gas recirculation channel 5 is blocked.

Fig. 3 zeigt eine Abschaltung des Einlaßkanales 3 ge­ genüber einer Frischluftzufuhr aus dem Ansaugkanal 1. Dabei ist ebenfalls wie bei der Fig. 2 keine Abgas­ rückführung vorgesehen. In der in der Fig. 3 darge­ stellten Position ist der Walzenschieber um ca. 85° gegenüber der Ausgangsposition gemäß Fig. 2 verstellt. Wie aus dieser Fig. ersichtlich ist, ist damit der Einlaßkanal 3 vollständig abgesperrt. Fig. 3 shows a shutdown of the inlet duct 3 ge compared to a fresh air supply from the intake duct 1st No exhaust gas recirculation is also provided as in FIG. 2. In the position shown in FIG. 3, the roller slide is adjusted by approximately 85 ° with respect to the starting position according to FIG. 2. As can be seen from this FIG., The inlet channel 3 is thus completely shut off.

Fig. 4 zeigt den Einlaßkanal 3 im abgesperrten Zustand gegenüber einer Frischluftzufuhr wie in Fig. 3. In dieser Position, die einer Winkelstellung von 115° gegenüber der Ausgangsstellung gemäß Fig. 2 darstellt, findet jedoch eine Einleitung von Abgas aus dem Abgas­ rückführkanal 5 in den Hauptdurchgangskanal 8 und von da aus über den Nebenkanal 9 in den Bereich des Ein­ laßkanales 3 hinter dem Walzenschieber 6 statt, von wo aus das Abgas in den Zylinder einströmen kann. Frisch­ luft wird in diesem Falle lediglich von dem Ansaugka­ nal 1 aus über den Einlaßkanal 4 eingeleitet. Fig. 4 shows the inlet channel 3 in the closed state with respect to a fresh air supply as in Fig. 3. In this position, which represents an angular position of 115 ° with respect to the starting position according to FIG. 2, however, there is an introduction of exhaust gas from the exhaust gas recirculation channel 5 in the main through-channel 8 and from there on the secondary channel 9 in the area of a laßkanales 3 behind the roller valve 6 instead, from where the exhaust gas can flow into the cylinder. Fresh air is only introduced from the Ansaugka channel 1 via the inlet channel 4 in this case.

Aus den Fig. 2 bis 4 ist weiterhin auch ersicht­ lich, daß sich problemlos Übergangsbereiche mit ent­ sprechenden Mischstellungen ergeben, so daß die Über­ gänge von einem Betriebszustand zu dem anderen ent­ sprechend weich vonstatten gehen.From Fig. 2 to 4 is also ersicht Lich that transition areas with appropriate speaking mixed positions result so that the transitions go from one operating state to the other accordingly soft.

Wie aus der Fig. 1 ersichtlich ist, kann für die Ab­ gasrückführung jegliche Verrohrung entfallen, denn das Abgas kann direkt durch den Zylinderkopf 2 in den im Gehäuse der Einlaßkanäle 3 und 4 sich befindenden Teil des Abgasrückführkanales 5 erfolgen. Anstelle einer Einleitung von Abgas in den absperrbaren Einlaßkanal 3 kann im Bedarfsfalle über entsprechende Nuten und Ring­ räume im Zylinderkopf und/oder des Gehäuses der Ein­ laßkanäle 3 und 4 das Abgas auch in den offenen Ein­ laßkanal 4 eingeleitet werden.As can be seen from FIG. 1, there is no need for any piping for the gas recirculation, since the exhaust gas can take place directly through the cylinder head 2 in the part of the exhaust gas recirculation duct 5 located in the housing of the inlet ducts 3 and 4 . Instead of an introduction of exhaust gas into the lockable inlet duct 3 , if necessary, spaces and corresponding rings and grooves in the cylinder head and / or the housing of the inlet ducts 3 and 4, the exhaust gas can also be introduced into the open inlet duct 4 .

Der Walzenschieber 6 läßt sich separat für jeden Zy­ linder betätigen. Im Bedarfsfalle kann man jedoch auch mehrere Walzenschieber 6 miteinander verbinden, z. B. durch ein gemeinsames Gestänge, und dann über einen Aktuator, der das Gestänge betätigt alle Walzenschie­ ber 6 gleichzeitig verstellen. Die Verstellung kann dabei beliebig durch einen entsprechend angesteuerten Aktuator erfolgen.The roller valve 6 can be operated separately for each cylinder. If necessary, however, you can also connect several roller slides 6 , z. B. by a common linkage, and then via an actuator that operates the linkage all roller slide 6 adjust at the same time. The adjustment can be made at will by a correspondingly controlled actuator.

Claims (6)

1. Brennkraftmaschine mit einem Zylinderkopf und mit darin angeordneten Zylindern, wobei jeder Zylinder mindestens zwei Einlaßkanäle aufweist, die von ei­ nem gemeinsamen Ansaugkanal abzweigen, wobei jedem Einlaßkanal ein Einlaßventil zugeordnet ist, mit einem Auslaßkanal, und mit einem von dem Auslaßka­ nal abzweigenden Abgasrückführkanal, der wenig­ stens in einen der Einlaßkanäle mündet, wobei der Abgasrückführkanal und einer der Einlaßkanäle ab­ sperrbar sind, dadurch gekennzeichnet, daß in dem absperrbaren Einlaßkanal (3) im Bereich der Einmündung des Abgasrückführkanales (5) n den Einlaßkanal (3) ein Walzenschieber (6) mit einer drehbaren Absperrwalze (7) angeordnet ist, wobei die Absperrwalze (7) drehstellungsabhängig mit Übergangsbereichen den Durchfluß von dem Ansaugka­ nal (1) durch den Einlaßkanal (3) zu dem Zylinder offen hält, eine Verbindung des Abgasrückführkana­ les (5) über den Walzenschieber (6) zu dem Zylin­ der bei abgesperrtem Einlaßkanal (3) freigibt oder eine Totalsperre von Abgasrückführkanal (5) und Einlaßkanal (3) ergibt.1. Internal combustion engine with a cylinder head and with cylinders arranged therein, each cylinder having at least two inlet ducts branching from a common intake duct, each inlet duct being assigned an inlet valve, with an outlet duct, and with an exhaust gas recirculation duct branching off the outlet duct, which opens at least into one of the inlet ducts, the exhaust gas recirculation duct and one of the inlet ducts being lockable, characterized in that in the lockable inlet duct ( 3 ) in the region of the mouth of the exhaust gas recirculation duct ( 5 ) n, the inlet duct ( 3 ) has a roller valve ( 6 ) is arranged with a rotatable shut-off roller ( 7 ), the shut-off roller ( 7 ) depending on the rotational position with transition areas keeping the flow from the intake channel ( 1 ) through the inlet channel ( 3 ) to the cylinder open, a connection of the exhaust gas recirculation channel ( 5 ) the roller valve ( 6 ) to the Zylin the shut off tem inlet channel ( 3 ) releases or a total lock of exhaust gas recirculation channel ( 5 ) and inlet channel ( 3 ) results. 2. Brennkraftmaschine nach Anspruch 1, dadurch gekennzeichnet, daß der Abgasrückführkanal (5) über den Walzenschieber (6) in den gegenüber dem Ansaugkanal (1) absperr­ baren Einlaßkanal (3) mündet.2. Internal combustion engine according to claim 1, characterized in that the exhaust gas recirculation channel ( 5 ) via the roller slide ( 6 ) opens into the inlet channel ( 3 ) which can be shut off in relation to the intake channel ( 1 ). 3. Brennkraftmaschine nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die Absperrwalze (7) einen Hauptdurchgangskanal (8) zur Verbindung des Ansaugkanales (1) über den Einlaßkanal (3) zum Zylinder und einen Nebenkanal (9) aufweist, der drehstellungsabhängig mit dem Abgasrückführkanal (5) auf einer Seite und mit dem Hauptdurchgangskanal (8) auf der anderen Seite verbindbar ist.3. Internal combustion engine according to one of claims 1 or 2, characterized in that the shut-off roller ( 7 ) has a main passage channel ( 8 ) for connecting the suction channel ( 1 ) via the inlet channel ( 3 ) to the cylinder and a secondary channel ( 9 ) which is dependent on the rotational position can be connected to the exhaust gas recirculation duct ( 5 ) on one side and to the main passage duct ( 8 ) on the other side. 4. Brennkraftmaschine nach Anspruch 3, dadurch gekennzeichnet, daß der Nebenkanal (9) wenigstens annähernd rechtwink­ lig zu dem Hauptdurchgangskanal (8) liegt.4. Internal combustion engine according to claim 3, characterized in that the secondary duct ( 9 ) is at least approximately at right angles to the main main passage ( 8 ). 5. Brennkraftmaschine nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Einlaßkanäle (3, 4) mit dem Gehäuse für den Walzenschieber (6) am Zylinderkopf (2) ange­ flanscht sind, und daß der Abgasrückführkanal (5) durch den Zylinderkopf (2) geführt ist.5. Internal combustion engine according to one of claims 1 to 4, characterized in that the inlet channels ( 3 , 4 ) with the housing for the roller valve ( 6 ) on the cylinder head ( 2 ) are flanged, and that the exhaust gas recirculation channel ( 5 ) through the cylinder head ( 2 ) is performed. 6. Brennkraftmaschine nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Walzenschieber (6) mehrerer Zylinder miteinan­ der verbunden und durch einen Aktuator gemeinsam verstellbar sind.6. Internal combustion engine according to one of claims 1 to 5, characterized in that the roller valve ( 6 ) of a plurality of cylinders are connected to one another and are jointly adjustable by an actuator.
DE19633603A 1996-08-21 1996-08-21 Internal combustion engine with cylinder head and cylinders Expired - Fee Related DE19633603C1 (en)

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0887541A2 (en) * 1997-06-25 1998-12-30 Lucas Industries Public Limited Company Exhast gas recirculation valve
DE19904622A1 (en) * 1999-02-05 2000-08-10 Audi Ag Control valve to return exhaust gas to fresh gas in IC engines consists of two parts connected to separate guide systems with tubes for returned exhaust
DE10053675A1 (en) * 2000-10-28 2002-05-08 Volkswagen Ag Controlled exhaust gas recycling system for vehicle engine includes air inlet- and exhaust recycle channels connected to partially-open three-way valve feeding inlet manifold
DE10062169A1 (en) * 2000-12-14 2002-06-20 Volkswagen Ag IC engine with exhaust-gas re-circulation esp. for motor vehicles is without external ducts and without external exhaust re-circulation valve, has intermediate flange for simple connection
FR2833650A1 (en) * 2001-12-14 2003-06-20 Peugeot Citroen Automobiles Sa Motor vehicle i.c. engine operating system uses gas stored in one mode to enhance performance in others
WO2004031563A1 (en) 2002-09-26 2004-04-15 Daimlerchrysler Ag Exhaust gas recirculation system for an internal combustion engine
DE102004044016A1 (en) * 2004-09-09 2006-03-16 Mahle Filtersysteme Gmbh Fresh gas plant for internal combustion engine e.g. petrol engine, has discharge opening pipe attached to cylinders, and valve mechanism has high-speed servo unit in valve housing whose main inlet is connected with discharge opening
FR2879667A1 (en) * 2004-12-21 2006-06-23 Renault Sas Exhaust gas diffuser-mixer for internal combustion engine of motor vehicle, has endless screw to drive closing unit by displacing closing unit along side wall of conduit to partially close inlet opening
FR2928704A1 (en) * 2008-03-11 2009-09-18 Peugeot Citroen Automobiles Sa Air and exhaust gas intake distributing device for cylinder head of e.g. oil engine, of motor vehicle, has chamber with air and exhaust gas intake openings and chamber supplying openings that are selectively and partially closed by shutter
DE102009052319A1 (en) * 2009-11-07 2011-05-26 Volkswagen Ag Internal-combustion engine, has exhaust-gas recirculation system, and flow guiding element arranged in air supply line in free cross section such that supplied fresh air flows on both sides of flow guiding element through air supply line
ITBO20090786A1 (en) * 2009-12-09 2011-06-10 Magneti Marelli Spa SINGLE-BUTTERFLY MIXER DEVICE FOR A LOW-PRESSURE ENGINE EGR SYSTEM WITH INTERNAL COMBUSTION
WO2015010903A1 (en) * 2013-07-26 2015-01-29 Valeo Systemes Thermiques Device for admitting inlet gases and/or recirculated exhaust gases into an internal combustion engine cylinder

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DE3828742A1 (en) * 1987-08-25 1989-03-09 Toyota Motor Co Ltd INTERNAL COMBUSTION ENGINE WITH SEVERAL INLET VALVES AND EXHAUST GAS RECIRCULATION
DE4022823A1 (en) * 1990-07-18 1992-01-23 Lothar Strach Rotating valve IC engine - has infinitely variable regulation of gas admission and exhaust times during operation

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3542061A1 (en) * 1985-11-28 1987-06-04 Opel Adam Ag Four-stroke piston internal combustion engine, especially for motor vehicles
DE3828742A1 (en) * 1987-08-25 1989-03-09 Toyota Motor Co Ltd INTERNAL COMBUSTION ENGINE WITH SEVERAL INLET VALVES AND EXHAUST GAS RECIRCULATION
DE4022823A1 (en) * 1990-07-18 1992-01-23 Lothar Strach Rotating valve IC engine - has infinitely variable regulation of gas admission and exhaust times during operation

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0887541A3 (en) * 1997-06-25 1999-08-18 Lucas Industries Public Limited Company Exhast gas recirculation valve
EP0887541A2 (en) * 1997-06-25 1998-12-30 Lucas Industries Public Limited Company Exhast gas recirculation valve
DE19904622A1 (en) * 1999-02-05 2000-08-10 Audi Ag Control valve to return exhaust gas to fresh gas in IC engines consists of two parts connected to separate guide systems with tubes for returned exhaust
DE19904622B4 (en) * 1999-02-05 2012-01-05 Audi Ag Control valve for the return of exhaust gas to the fresh gas of an internal combustion engine
DE10053675B4 (en) * 2000-10-28 2011-04-28 Volkswagen Ag Internal combustion engine with regulated exhaust gas recirculation
DE10053675A1 (en) * 2000-10-28 2002-05-08 Volkswagen Ag Controlled exhaust gas recycling system for vehicle engine includes air inlet- and exhaust recycle channels connected to partially-open three-way valve feeding inlet manifold
DE10062169A1 (en) * 2000-12-14 2002-06-20 Volkswagen Ag IC engine with exhaust-gas re-circulation esp. for motor vehicles is without external ducts and without external exhaust re-circulation valve, has intermediate flange for simple connection
FR2833650A1 (en) * 2001-12-14 2003-06-20 Peugeot Citroen Automobiles Sa Motor vehicle i.c. engine operating system uses gas stored in one mode to enhance performance in others
WO2004031563A1 (en) 2002-09-26 2004-04-15 Daimlerchrysler Ag Exhaust gas recirculation system for an internal combustion engine
US7059310B2 (en) 2002-09-26 2006-06-13 Daimler Chrysler Ag Exhaust gas recirculation
DE102004044016B4 (en) * 2004-09-09 2014-10-02 Mahle Filtersysteme Gmbh Fresh gas system
DE102004044016A1 (en) * 2004-09-09 2006-03-16 Mahle Filtersysteme Gmbh Fresh gas plant for internal combustion engine e.g. petrol engine, has discharge opening pipe attached to cylinders, and valve mechanism has high-speed servo unit in valve housing whose main inlet is connected with discharge opening
FR2879667A1 (en) * 2004-12-21 2006-06-23 Renault Sas Exhaust gas diffuser-mixer for internal combustion engine of motor vehicle, has endless screw to drive closing unit by displacing closing unit along side wall of conduit to partially close inlet opening
FR2928704A1 (en) * 2008-03-11 2009-09-18 Peugeot Citroen Automobiles Sa Air and exhaust gas intake distributing device for cylinder head of e.g. oil engine, of motor vehicle, has chamber with air and exhaust gas intake openings and chamber supplying openings that are selectively and partially closed by shutter
DE102009052319A1 (en) * 2009-11-07 2011-05-26 Volkswagen Ag Internal-combustion engine, has exhaust-gas recirculation system, and flow guiding element arranged in air supply line in free cross section such that supplied fresh air flows on both sides of flow guiding element through air supply line
ITBO20090786A1 (en) * 2009-12-09 2011-06-10 Magneti Marelli Spa SINGLE-BUTTERFLY MIXER DEVICE FOR A LOW-PRESSURE ENGINE EGR SYSTEM WITH INTERNAL COMBUSTION
WO2015010903A1 (en) * 2013-07-26 2015-01-29 Valeo Systemes Thermiques Device for admitting inlet gases and/or recirculated exhaust gases into an internal combustion engine cylinder
FR3009030A1 (en) * 2013-07-26 2015-01-30 Valeo Systemes Thermiques DEVICE FOR INTRODUCING RECIRCULATED INTAKE GASES AND / OR EXHAUST GASES IN AN INTERNAL COMBUSTION ENGINE CYLINDER.
CN105473842A (en) * 2013-07-26 2016-04-06 瓦莱奥热力***公司 Device for admitting inlet gases and/or recirculated exhaust gases into an internal combustion engine cylinder
US9874181B2 (en) 2013-07-26 2018-01-23 Valeo Systemes Thermiques Device for admitting inlet gases and/or recirculated exhaust gases into an internal combustion engine cylinder
CN105473842B (en) * 2013-07-26 2018-03-27 瓦莱奥热力***公司 For the device being received into inlet gas and/or EGR gas in cylinder of internal combustion engine

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