EP2375016A2 - Combustion engine - Google Patents
Combustion engine Download PDFInfo
- Publication number
- EP2375016A2 EP2375016A2 EP11161108A EP11161108A EP2375016A2 EP 2375016 A2 EP2375016 A2 EP 2375016A2 EP 11161108 A EP11161108 A EP 11161108A EP 11161108 A EP11161108 A EP 11161108A EP 2375016 A2 EP2375016 A2 EP 2375016A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- fan wheel
- combustion engine
- internal combustion
- fan
- rotation
- 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.)
- Granted
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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
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
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- 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
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
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- 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
- F01M2013/0422—Separating oil and gas with a centrifuge device
Definitions
- the present invention relates to an internal combustion engine with a crankcase and a camshaft rotating therein according to the preamble of claim 1.
- the invention also relates to a fan for use in such an internal combustion engine.
- blowby gas When operating a generic internal combustion engine usually occurs during compression of the piston rings gas from the working space in a crankcase. Even with optimal sealing, this so-called blowby gas is about 0.5 - 2% of the total gas volume. Due to these unavoidable blow-by gases, a venting of the crankcase is required, which usually ends in the air filter, so that the blow-by gas can be sucked in the next working cycle of the internal combustion engine and so does not enter directly into the environment. Due to the oil mist particles contained in the blow-by gas, however, the air filter is particularly heavily loaded, so that care must be taken to ensure that as little oil mist particles as possible are sucked off during the extraction of the blow-by gases.
- sampling point for removing the blow-by gases should be positioned in such a way that the proportion of entrained oil remains as low as possible.
- Such sampling points can therefore be arranged in particular in the area of a cylinder head cover, where it is not completely ruled out that under severe operating conditions, such as extreme cornering, oil spills occur, which contribute to an oil load of the sucked blow-by gases.
- the present invention is concerned with the problem for an internal combustion engine of the generic type to provide an improved or at least one alternative embodiment, which is characterized in particular by a suction of blow-by gases with reduced oil content.
- the present invention is based on the general idea, in a known per se internal combustion engine with rotating in a crankcase camshaft on this camshaft, a fan rotatably to arrange, which also has a special profile, by means of which during rotation of the camshaft and thus upon rotation of the fan an at least ⁇ lnebelredu adventer, preferably oil mist-free, radial corridor around the fan around, so that in the range of this corridor a suction for sucking blowby gases can be arranged and thereby sucked blowby gases compared to a conventional extraction have a much lower oil content
- the fan can be made as a low-cost component and has a, a tractor tire-like profile, which generates the above-described radial and preferably oil-free corridor upon rotation of the camshaft.
- the fan impeller according to the invention always rotates, wherein the at least oil mist reduced corridor - in scope and size, of course, depending on the rotational speed of the camshaft - is always available during operation of the internal combustion engine.
- sucking the blow-by gas from this corridor in particular the oil load of a downstream air filter can be significantly reduced, so that related maintenance costs can be reduced.
- the fan wheel with a tip in the direction of rotation directed V-shaped profile wherein at a free end of the V-shaped ribs forming each oriented in the direction of rotation collar is arranged, which together with the respective Ridge forms a channel in which the separated oil or the separated oil mist are transported axially outward.
- the groove formed by the collar and the associated rib in each case has a three-dimensional curved course, wherein the oil separated from the impeller is transported axially and radially outward due to the groove-like design of the rib and the associated collar, whereby said inventive and at least reduced oil Corridor arises.
- the profile and / or the entire fan wheel can be inexpensively, for example, made of metal or plastic, in particular in plastic injection molding, be formed, and placed along the camshaft at a favorable location for the suction.
- the axial length of the fan wheel also determines the axial length of the corridor generated by this.
- an outer contour of the fan wheel is adapted to a contour of the suction for sucking the blow-by gases, and / or vice versa.
- the adaptation of the contours of the impeller, that is, the profile of the impeller and the exhaust have a decisive influence on the oil content of the extracted blow-by gases, so that the smallest possible radial distance between the impeller on the one hand and the exhaust on the other hand, the oil content of the extracted Blowby -Gas helps reduce.
- the suction can be attached, for example, to a cylinder head cover or even preferably integrally formed with this, that is formed on this, be.
- An internal combustion engine 1 has a crankcase 2 with a camshaft 3 rotating therein.
- cams 4 are arranged for actuating not shown inlet or outlet valves in a known manner.
- an inventive fan 5 is also arranged on the camshaft 3 arranged on the camshaft 3 .
- the fan 5 has a profile with which at Rotation of the fan 5 an at least oil mist reduced radial corridor 6 around the fan 5 is formed around.
- a suction nozzle 7 is provided according to the invention for the extraction of blowby gases.
- the fan impeller 5 has a directed with a tip in the direction of rotation 14 V-shaped profile, wherein at a free end of the V-shaped profile forming ribs 8 each a direction of rotation 14 oriented collar 9 is arranged, which together with the respective rib 8 forms a groove 10 in which deposited oil can be transported to the outside axially.
- the collar 9 extends only partially along the respectively associated rib 8, preferably so that the ribs 8 have no collar 9 at a contact area with another rib 8. This is the case for example in the region of a V-shaped tip 11 formed by the two ribs 8.
- the ribs 8 and the respective associated collar 9 may be formed so that the groove 10 formed by these changes in cross-section, in particular, tapers or enlarges outwards.
- the fan 5 may have a driver contour 12, which with a correspondingly shaped Mit supportive ceremonikontur 13 (see. Fig. 2 ) cooperates on the camshaft 3.
- the Mitauerkontur 12 and the Mit supportive ceremonikontur 13 are preferably formed such that the fan 5 threaded onto the camshaft 3 in the axial direction, that is can be pushed.
- the fan 5 has a smaller diameter in the center than at the edge, whereby the through the collar 9 and the associated ribs 8 formed gutters 10 get a three-dimensional and curved course.
- the outer contour of the fan wheel 5 is preferably adapted to a contour of the suction nozzle 7, as for example according to the Fig. 1 shown, wherein a radial distance between the suction nozzle 7 and the fan 5 should preferably be kept as low as possible to suck as little oil or oil mist blowby gases.
- a small proportion of oil sucked blowby gases is of great advantage, since the blow-by gases are usually fed again after passing through an air filter combustion, the durability of the air filter is highly dependent on the oil load of the sucked blow-by gases.
- the fan 5 of the invention may be made of metal or plastic, in particular as a plastic injection molded part and thereby produced inexpensively.
- the Luftabsaugstutzen 7 also have a greater distance from the impeller 5 according to the invention, but it should always be within the formed by the fan 5 during a rotary movement oil mist reduced corridor 6, to minimize oil pollution for the downstream and not shown air filter can .
- the suction nozzle 7 covers in accordance with the Fig. 1 just that portion of the tip 11 in which the ribs 8 have no collar. Of course, care should be taken in the inventive fan 5 that this is properly installed with respect to the direction of rotation 14.
- fan wheels 5 are to be understood purely by way of example with respect to the number and configuration of the collar 9 and the ribs 8, so that in particular fan wheels 8 with more or fewer ribs 8 or collar 9 should also be mitumutzt of the invention.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft eine Brennkraftmaschine mit einem Kurbelgehäuse und einer darin rotierenden Nockenwelle gemäß dem Oberbegriff des Anspruchs 1. Die Erfindung betrifft außerdem ein Lüfterrad für den Einsatz in einer derartigen Brennkraftmaschine.The present invention relates to an internal combustion engine with a crankcase and a camshaft rotating therein according to the preamble of claim 1. The invention also relates to a fan for use in such an internal combustion engine.
Beim Betrieb einer gattungsgemäßen Brennkraftmaschine tritt üblicherweise bei der Kompression an den Kolbenringen Gas vom Arbeitsraum in ein Kurbelgehäuse aus. Selbst bei optimaler Abdichtung beträgt dieses sogenannte Blowby-Gas ca. 0,5 ― 2 % des gesamten Gasvolumens. Aufgrund dieser unvermeidbaren Blowby-Gase ist eine Entlüftung des Kurbelgehäuses erforderlich, die üblicherweise im Luftfilter endet, so dass das Blowby-Gas beim nächsten Arbeitstakt der Brennkraftmaschine wieder angesaugt werden kann und so nicht direkt in die Umwelt gelangt. Durch die im Blowby-Gas enthaltenen Ölnebelpartikel wird aber insbesondere der Luftfilter stark belastet, so dass bereits bei der Absaugung der Blowby-Gase darauf geachtet werden muss, dass möglichst wenig Ölnebelpartikel mit abgesaugt werden. Eine Entnahmestelle zur Entnahme der Blowby-Gase sollte aus diesem Grund derart positioniert werden, dass der Anteil an mitabgesaugtem Öl möglichst gering bleibt. Derartige Entnahmestellen können deshalb insbesondere im Bereich einer Zylinderkopfhaube angeordnet sein, wobei auch dort nicht gänzlich auszuschließen ist, dass unter verschärften Betriebsbedingungen, wie beispielsweise extremen Kurvenfahrten, Ölspritzer auftreten, die zu einer Ölbelastung der abgesaugten Blowby-Gase beitragen.When operating a generic internal combustion engine usually occurs during compression of the piston rings gas from the working space in a crankcase. Even with optimal sealing, this so-called blowby gas is about 0.5 - 2% of the total gas volume. Due to these unavoidable blow-by gases, a venting of the crankcase is required, which usually ends in the air filter, so that the blow-by gas can be sucked in the next working cycle of the internal combustion engine and so does not enter directly into the environment. Due to the oil mist particles contained in the blow-by gas, however, the air filter is particularly heavily loaded, so that care must be taken to ensure that as little oil mist particles as possible are sucked off during the extraction of the blow-by gases. For this reason, a sampling point for removing the blow-by gases should be positioned in such a way that the proportion of entrained oil remains as low as possible. Such sampling points can therefore be arranged in particular in the area of a cylinder head cover, where it is not completely ruled out that under severe operating conditions, such as extreme cornering, oil spills occur, which contribute to an oil load of the sucked blow-by gases.
Die vorliegende Erfindung beschäftigt sich mit dem Problem, für eine Brennkraftmaschine der gattungsgemäßen Art, eine verbesserte oder zumindest eine alternative Ausführungsform anzugeben, die sich insbesondere durch eine Absaugung von Blowby-Gasen mit reduziertem Ölanteil auszeichnet.The present invention is concerned with the problem for an internal combustion engine of the generic type to provide an improved or at least one alternative embodiment, which is characterized in particular by a suction of blow-by gases with reduced oil content.
Dieses Problem wird erfindungsgemäß durch die Gegenstände der unabhängigen Ansprüche gelöst. Vorteilhafte Ausführungsformen sind Gegenstand der abhängigen Ansprüche.This problem is solved according to the invention by the subject matters of the independent claims. Advantageous embodiments are the subject of the dependent claims.
Die vorliegende Erfindung beruht auf dem allgemeinen Gedanken, bei einer an sich bekannten Brennkraftmaschine mit einer sich in einem Kurbelgehäuse drehenden Nockenwelle auf dieser Nockenwelle ein Lüfterrad drehfest anzuordnen, das zudem ein spezielles Profil aufweist, mittels welchem bei Rotation der Nockenwelle und damit bei Rotation des Lüfterrades ein zumindest ölnebelreduzierter, vorzugsweise ölnebelfreier, radialer Korridor um das Lüfterrad herum entsteht, so dass im Bereich dieses Korridors ein Absaugstutzen zur Absaugung von Blowby-Gasen angeordnet werden kann und die dadurch abgesaugten Blowby-Gase im Vergleich zu einer herkömmlichen Absaugung einen deutlich geringeren Ölanteil aufweisen. Das Lüfterrad kann dabei als kostengünstiges Bauteil hergestellt werden und weist ein, einem Traktorreifen ähnliches Profil auf, welches bei Rotation der Nockenwelle den oben beschriebenen radialen und vorzugsweise ölnebenfreien Korridor erzeugt. Da sich die Nockenwelle beim Betrieb der Brennkraftmaschine stets dreht, dreht sich auch das erfindungsgemäße Lüfterrad stets mit, wobei der zumindest ölnebelreduzierte Korridor ― in Umfang und Größe selbstverständlich abhängig von der Rotationsgeschwindigkeit der Nockenwelle ― immer während des Betriebs der Brennkraftmaschine zur Verfügung steht. Durch das Absaugen des Blowby-Gas aus diesem Korridor lässt sich insbesondere die Ölbelastung eines nachgeschalteten Luftfilters deutlich verringern, wodurch damit im Zusammenhang stehende Wartungskosten reduziert werden können.The present invention is based on the general idea, in a known per se internal combustion engine with rotating in a crankcase camshaft on this camshaft, a fan rotatably to arrange, which also has a special profile, by means of which during rotation of the camshaft and thus upon rotation of the fan an at least Ölnebelreduzierter, preferably oil mist-free, radial corridor around the fan around, so that in the range of this corridor a suction for sucking blowby gases can be arranged and thereby sucked blowby gases compared to a conventional extraction have a much lower oil content , The fan can be made as a low-cost component and has a, a tractor tire-like profile, which generates the above-described radial and preferably oil-free corridor upon rotation of the camshaft. Since the camshaft always rotates during operation of the internal combustion engine, the fan impeller according to the invention always rotates, wherein the at least oil mist reduced corridor - in scope and size, of course, depending on the rotational speed of the camshaft - is always available during operation of the internal combustion engine. By sucking the blow-by gas from this corridor, in particular the oil load of a downstream air filter can be significantly reduced, so that related maintenance costs can be reduced.
Bei einer vorteilhaften Weiterbildung der erfindungsgemäßen Lösung, weist das Lüfterrad ein mit einer Spitze in Drehrichtung gerichtetes V-förmiges Profil auf, wobei an einem freien Ende von das V-förmige bildenden Rippen jeweils ein in Drehrichtung orientierter Kragen angeordnet ist, der zusammen mit der jeweiligen Rippe eine Rinne bildet, in welcher das abgeschiedene Öl bzw. der abgeschiedene Ölnebel axial nach außen transportiert werden. Die durch den Kragen und die jeweils zugehörige Rippe gebildete Rinne weist dabei einen dreidimensionalen gekrümmten Verlauf auf, wobei das vom Lüfterrad abgeschiedene Öl aufgrund der rinnenartigen Ausbildung der Rippe und des zugehörigen Kragens axial und radial nach außen transportiert wird, wodurch der besagte erfindungsgemäße und zumindest ölreduzierte Korridor entsteht. Das Profil und/oder das gesamte Lüfterrad können dabei kostengünstig, beispielsweise aus Metall oder aus Kunststoff, insbesondere in Kunststoffspritzgusstechnik, ausgebildet sein, und entlang der Nockenwelle an einer für die Absaugung günstigen Stelle platziert werden. Die axiale Länge des Lüfterrades bestimmt dabei selbstverständlich auch die axiale Länge des durch dieses erzeugten Korridors.In an advantageous development of the solution according to the invention, the fan wheel with a tip in the direction of rotation directed V-shaped profile, wherein at a free end of the V-shaped ribs forming each oriented in the direction of rotation collar is arranged, which together with the respective Ridge forms a channel in which the separated oil or the separated oil mist are transported axially outward. The groove formed by the collar and the associated rib in each case has a three-dimensional curved course, wherein the oil separated from the impeller is transported axially and radially outward due to the groove-like design of the rib and the associated collar, whereby said inventive and at least reduced oil Corridor arises. The profile and / or the entire fan wheel can be inexpensively, for example, made of metal or plastic, in particular in plastic injection molding, be formed, and placed along the camshaft at a favorable location for the suction. Of course, the axial length of the fan wheel also determines the axial length of the corridor generated by this.
Bei einer weiteren vorteilhaften Ausführungsform der erfindungsgemäßen Lösung, ist eine Außenkontur des Lüfterrades an eine Kontur des Absaugstutzens zur Absaugung der Blowby-Gase angepasst, und/oder umgekehrt. Die Anpassung der Konturen des Lüfterrades, das heißt des Profils des Lüfterrades und des Absaugstutzens haben dabei einen entscheidenden Einfluss auf den Ölgehalt der abgesaugten Blowby-Gase, so dass ein möglichst geringer radialer Abstand zwischen dem Lüfterrad einerseits und dem Absaugstutzen andererseits den Ölgehalt des abgesaugten Blowby-Gases hilft zu reduzieren. Der Absaugstutzen kann dabei beispielsweise an einer Zylinderkopfhaube befestigt oder sogar vorzugsweise einstückig mit dieser ausgebildet, das heißt an diese angeformt, sein.In a further advantageous embodiment of the solution according to the invention, an outer contour of the fan wheel is adapted to a contour of the suction for sucking the blow-by gases, and / or vice versa. The adaptation of the contours of the impeller, that is, the profile of the impeller and the exhaust have a decisive influence on the oil content of the extracted blow-by gases, so that the smallest possible radial distance between the impeller on the one hand and the exhaust on the other hand, the oil content of the extracted Blowby -Gas helps reduce. The suction can be attached, for example, to a cylinder head cover or even preferably integrally formed with this, that is formed on this, be.
Selbstverständlich kann auch über die Ausbildung der einzelnen Rippen und der zugehörigen Kragen, beispielsweise deren Abstand zueinander und/oder deren Höhe Einfluss auf die Abscheidewirkung des Lüfterrades genommen werden. Weitere wichtige Merkmale und Vorteile der Erfindung ergeben sich aus den Unteransprüchen, aus den Zeichnungen und aus der zugehörigen Figurenbeschreibung anhand der Zeichnungen.Of course, on the formation of the individual ribs and the associated collar, for example, their distance from each other and / or their height influence on the separation efficiency of the fan wheel are taken. Other important features and advantages of the invention will become apparent from the dependent claims, from the drawings and from the associated figure description with reference to the drawings.
Es versteht sich, dass die vorstehend genannten und die nachstehend noch zu erläuternden Merkmale nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Kombinationen oder in Alleinstellung verwendbar sind, ohne den Rahmen der vorliegenden Erfindung zu verlassen.It is understood that the features mentioned above and those yet to be explained below can be used not only in the particular combination given, but also in other combinations or in isolation, without departing from the scope of the present invention.
Bevorzugte Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und werden in der nachfolgenden Beschreibung näher erläutert, wobei sich gleiche Bezugszeichen auf gleiche oder ähnliche oder funktional gleiche Bauteile beziehen.Preferred embodiments of the invention are illustrated in the drawings and will be described in more detail in the following description, wherein like reference numerals refer to the same or similar or functionally identical components.
Dabei zeigen, jeweils schematisch
- Fig. 1
- eine erfindungsgemäße Brennkraftmaschine mit einem auf einer Nockenwelle angeordneten Lüfterrad,
- Fig. 2
- das erfindungsgemäße Lüfterrad in einer Axialansicht,
- Fig. 3
- das erfindungsgemäße Lüfterrad in einer Radialansicht.
- Fig. 1
- an internal combustion engine according to the invention with a fan arranged on a camshaft,
- Fig. 2
- the impeller according to the invention in an axial view,
- Fig. 3
- the fan according to the invention in a radial view.
Entsprechend der
Wie den
Wie insbesondere der
Zur drehfesten Verbindung des Lüfterrades 5 mit der Nockenwelle 3, kann das Lüfterrad 5 eine Mitnehmerkontur 12 aufweisen, welche mit einer entsprechend ausgeformten Mitnehmergegenkontur 13 (vgl.
Wie insbesondere den
Generell kann das erfindungsgemäße Lüfterrad 5 aus Metall oder aus Kunststoff, insbesondere als Kunststoffspritzgussteil ausgebildet und dadurch kostengünstig hergestellt werden. Selbstverständlich kann dabei der Luftabsaugstutzen 7 auch einen größeren Abstand zum erfindungsgemäßen Lüfterrad 5 aufweisen, wobei er jedoch stets innerhalb des vom Lüfterrad 5 bei einer Drehbewegung gebildeten ölnebelreduzierten Korridors 6 liegen sollte, um eine Ölbelastung für das nachgeschaltete und nicht gezeigte Luftfilter möglichst gering halten zu können. Der Absaugstutzen 7 überstreicht dabei gemäß der
Claims (10)
dadurch gekennzeichnet,
characterized,
dadurch gekennzeichnet,
dass das Lüfterrad (5) ein mit einer Spitze (11) in Drehrichtung (14) gerichtetes V-förmiges Profil aufweist, wobei an einem freien Ende von das V-förmige Profil bildenden Rippen (8) jeweils ein in Drehrichtung (14) orientierter Kragen (9) angeordnet ist, der zusammen mit der jeweiligen Rippe (8) eine Rinne (10) bildet, in welcher abgeschiedenes Öl nach axial außen transportiert werden kann.Internal combustion engine according to claim 1,
characterized,
in that the fan wheel (5) has a V-shaped profile directed in the direction of rotation (14) by a tip (11), wherein a collar oriented in the direction of rotation (14) is provided at each free end of the ribs (8) forming the V-shaped profile (9) is arranged, which together with the respective rib (8) forms a channel (10) in which separated oil can be transported to the outside axially.
dadurch gekennzeichnet,
dass sich der Kragen (9) nur teilweise entlang der jeweils zugehörigen Rippe (8) erstreckt, vorzugsweise so, dass die Rippen (8) an einem Kontaktbereich mit einer anderen Rippe (8) keinen Kragen (9) aufweisen.Internal combustion engine according to claim 2,
characterized,
in that the collar (9) extends only partially along the respectively associated rib (8), preferably in such a way that the ribs (8) have no collar (9) at a contact region with another rib (8).
dadurch gekennzeichnet,
dass sich die durch die Rippen (8) und den zugehörigen Kragen (9) gebildete Rinne (10) im Querschnitt verändert, insbesondere nach außen verjüngt oder vergrößert.Internal combustion engine according to claim 2 or 3,
characterized,
in that the channel (10) formed by the ribs (8) and the associated collar (9) changes in cross section, in particular tapers or enlarges outwards.
dadurch gekennzeichnet,
dass das Lüfterrad (5) eine Mitnehmerkontur (12) aufweist, welche mit einer Mitnehmergegenkontur (13) an der Nockenwelle (3) zusammenwirkt.Internal combustion engine according to one of claims 1 to 4,
characterized,
that the fan wheel (5) has a driver contour (12) which cooperates with a Mitnehmergegenkontur (13) on the camshaft (3).
dadurch gekennzeichnet,
dass die Mitnehmerkontur (12) und die Mitnehmergegenkontur (13) derart ausgebildet sind, dass das Lüfterrad (5) auf die Nockenwelle (3) in Axialrichtung aufschiebbar ist.Internal combustion engine at least according to claim 5,
characterized,
that the driver contour (12) and the Mitnehmergegenkontur (13) are formed such that the fan wheel (5) (3) is pushed onto the camshaft in the axial direction.
dadurch gekennzeichnet,
dass das Lüfterrad (5) mittig einen geringeren Durchmesser aufweist als randseitig.Internal combustion engine according to one of claims 1 to 6,
characterized,
that the fan wheel (5) has a smaller diameter in the middle than at the edge.
dadurch gekennzeichnet,
dass eine Außenkontur des Lüfterrades (5) auf eine Kontur des Absaugstutzens (7) abgestimmt ist.Internal combustion engine according to at least one of claims 1 to 7,
characterized,
that an outer contour of the fan wheel (5) is matched to a contour of the suction (7).
dadurch gekennzeichnet,
dass das Lüfterrad (5) ein Profil aufweist, mittels welchem bei Rotation des Lüfterrades (5) ein zumindest ölnebelreduzierter radialer Korridor (6) um das Lüfterrad (5) herum entsteht.Fan wheel (5) for use in an internal combustion engine (1) according to one of claims 1 to claim 8,
characterized,
in that the fan wheel (5) has a profile, by means of which an at least oil-mist-reduced radial corridor (6) around the fan wheel (5) arises during rotation of the fan wheel (5).
dadurch gekennzeichnet,
dass das Lüfterrad (5) ein mit einer Spitze (11) in Drehrichtung (14) gerichtetes V-förmiges Profil aufweist, wobei an einem freien Ende von das V-förmige Profil bildenden Rippen (8) jeweils ein in Drehrichtung (14) orientierter Kragen (9) angeordnet ist, der zusammen mit der jeweiligen Rippe (8) eine Rinne (10) bildet, in welcher abgeschiedenes Öl nach axial außen transportiert werden kann.Fan wheel according to claim 9,
characterized,
in that the fan wheel (5) has a V-shaped profile directed in the direction of rotation (14) by a tip (11), wherein a collar oriented in the direction of rotation (14) is provided at each free end of the ribs (8) forming the V-shaped profile (9) is arranged, which together with the respective rib (8) forms a channel (10) in which separated oil can be transported to the outside axially.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102010014546A DE102010014546A1 (en) | 2010-04-10 | 2010-04-10 | Internal combustion engine |
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Publication Number | Publication Date |
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EP2375016A2 true EP2375016A2 (en) | 2011-10-12 |
EP2375016A3 EP2375016A3 (en) | 2014-01-01 |
EP2375016B1 EP2375016B1 (en) | 2017-06-28 |
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EP11161108.3A Not-in-force EP2375016B1 (en) | 2010-04-10 | 2011-04-05 | Combustion engine |
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CN112267922A (en) * | 2020-09-28 | 2021-01-26 | 中国北方发动机研究所(天津) | Camshaft for vertical axis structure diesel engine |
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Publication number | Priority date | Publication date | Assignee | Title |
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FR1590886A (en) * | 1968-11-06 | 1970-04-20 | ||
GB1508212A (en) * | 1975-02-10 | 1978-04-19 | Rolls Royce | Apparatus for separating suspension of liquids in gas |
JPS572411A (en) * | 1980-06-06 | 1982-01-07 | Yamaha Motor Co Ltd | Oil separator for blow-by gas |
JPS575905U (en) * | 1980-06-11 | 1982-01-12 | ||
JPH04153514A (en) * | 1990-10-17 | 1992-05-27 | Toyota Autom Loom Works Ltd | Oil separator for blow-by gas |
JPH07150924A (en) * | 1993-12-01 | 1995-06-13 | Nissan Motor Co Ltd | Oil separator for blow-by gas |
JPH08284634A (en) * | 1995-04-07 | 1996-10-29 | Suzuki Motor Corp | Gas-liquid separation device for blow-by gas |
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DE19931740C2 (en) * | 1999-07-08 | 2001-06-13 | Daimler Chrysler Ag | Reciprocating internal combustion engine with a camshaft |
FR2804477B1 (en) * | 2000-01-28 | 2002-04-12 | Renault Vehicules Ind | DEVICE FOR EXHAUSTING GAS FROM THE HOUSING OF AN INTERNAL COMBUSTION ENGINE |
AU2001290604A1 (en) * | 2000-09-01 | 2002-03-13 | Bombardier Inc. | Continuously variable transmission for an internal combustion engine |
JP5000419B2 (en) * | 2006-08-16 | 2012-08-15 | 富士重工業株式会社 | Engine breather equipment |
JP2009121341A (en) * | 2007-11-14 | 2009-06-04 | Toyota Boshoku Corp | Crank room ventilation system |
JP2009174434A (en) * | 2008-01-24 | 2009-08-06 | Toyota Motor Corp | Oil blow-back suppression mechanism |
JP2009222044A (en) * | 2008-03-19 | 2009-10-01 | Nissan Motor Co Ltd | Blow-by gas treatment device |
US8075655B2 (en) * | 2008-06-17 | 2011-12-13 | Cummins Filtration Ip, Inc. | Rotative inertial impactor gas-oil separator for internal combustion engine |
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2010
- 2010-04-10 DE DE102010014546A patent/DE102010014546A1/en not_active Withdrawn
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2011
- 2011-04-05 EP EP11161108.3A patent/EP2375016B1/en not_active Not-in-force
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None |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN112267922A (en) * | 2020-09-28 | 2021-01-26 | 中国北方发动机研究所(天津) | Camshaft for vertical axis structure diesel engine |
Also Published As
Publication number | Publication date |
---|---|
DE102010014546A1 (en) | 2011-10-13 |
EP2375016A3 (en) | 2014-01-01 |
EP2375016B1 (en) | 2017-06-28 |
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