EP0782667B1 - Combustion air duct of an internal combustion engine - Google Patents
Combustion air duct of an internal combustion engine Download PDFInfo
- Publication number
- EP0782667B1 EP0782667B1 EP95933384A EP95933384A EP0782667B1 EP 0782667 B1 EP0782667 B1 EP 0782667B1 EP 95933384 A EP95933384 A EP 95933384A EP 95933384 A EP95933384 A EP 95933384A EP 0782667 B1 EP0782667 B1 EP 0782667B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- duct
- charge
- sump
- charge air
- air line
- 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 - Lifetime
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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
- F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
- F02M35/10288—Air intakes combined with another engine part, e.g. cylinder head cover or being cast in one piece with the exhaust manifold, cylinder head or engine block
-
- 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
- F02B75/00—Other engines
- F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
- F02B75/18—Multi-cylinder engines
- F02B75/22—Multi-cylinder engines with cylinders in V, fan, or star arrangement
-
- 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
- F02M33/00—Other apparatus for treating combustion-air, fuel or fuel-air mixture
- F02M33/02—Other apparatus for treating combustion-air, fuel or fuel-air mixture for collecting and returning condensed fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10209—Fluid connections to the air intake system; their arrangement of pipes, valves or the like
- F02M35/10222—Exhaust gas recirculation [EGR]; Positive crankcase ventilation [PCV]; Additional air admission, lubricant or fuel vapour admission
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
- F02M35/10281—Means to remove, re-atomise or redistribute condensed fuel; Means to avoid fuel particles from separating from the mixture
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/104—Intake manifolds
- F02M35/116—Intake manifolds for engines with cylinders in V-arrangement or arranged oppositely relative to the main shaft
Definitions
- the invention relates to an internal combustion engine with a crankcase, in which a crankshaft is rotatably mounted, at least a connecting rod is articulated which carries a piston which in a cylinder tube covered by a cylinder head is movable is. with gas exchange valves embedded in the cylinder head with one exhaust pipe and one trained as charge air line Combustion air line connected are at the geodetically lowest point an oil trap has, which is designed as a tub.
- Such an internal combustion engine with a combustion air line is known from DE-A 2 052 501.
- This combustion air line is intricately shaped, so that the production costs are considerable is.
- the flow conditions are due to this configuration not optimal. This shows the combustion air line a collector for liquid, which is essentially a triangular central expansion of the combustion air line is formed. Through this training, the flow conditions further adversely affected.
- JP-A 57-193755 which has an intake line has a collecting part for condensed water. This is done by a special design prevents the condensation in a throttle chamber can penetrate.
- the invention has for its object an internal combustion engine with a combustion air line to provide the previously avoids the disadvantages described and also for a largely oil-free combustion air supply to the individual Cylinders.
- the Charge air line can be assembled from charge air line sections is. Especially with supercharged internal combustion engines it is observed that entrained via the crankcase ventilation Oil despite an oil separator not so far from the subsequent one compressed combustion air is excreted that in the subsequent charge air line no more oil separation he follows. Therefore, in particular in the case of a charge air line, there is an oil trap Can be used advantageously in the form of a tub.
- the To assemble the charge air line from individual charge air line sections is especially for one made in several variants Internal combustion engine of a series advantageous if, for example different numbers of cylinders are to be realized.
- the charge air line sections of two adjacent cylinders in a row and the corresponding opposite row of cylinders to connect a charge air line section, so that this charge air line section four cylinders supplied with charge air.
- charge air duct sections for example an 8-cylinder version, a 12-cylinder version and the aforementioned 16-cylinder version with identical charge air duct sections will be realized.
- the tub is out Sump sections corresponding to the charge air line sections composed. This training is suitable for a production technology simple and inexpensive to manufacture such a trained charge air line.
- the tub sections point at their longitudinal ends bulkheads that match the contour correspond to the tubular charge air line.
- the tub is in one piece with the Combustion air line manufactured and the cross-sectional area of the Pan forms an additional area to the cross-sectional area of the combustion air line.
- the combustion air line is essentially tubular.
- the tub is at least approximated trapezoidal, with their trapezoidal Side walls below the equatorial plane in a straight extension of the walls of the combustion air line.
- the charge air line is geodetic
- a cooling water pipe is integrally formed at the highest point.
- the cooling water line is in accordance with the charge air line sections divided. Through this cooling water pipe respectively these cooling water pipe sections becomes the cooling water that via connectors from the cylinder heads of the internal combustion engine is introduced into this line to a cooling water heat exchanger returned.
- the combination of the cooling water pipe with the charge air line thus contributes to a further reduction the construction and manufacturing costs of the internal combustion engine at, since the cooling water comes from the same cylinder heads that Conversely, it must be supplied with charge air got to.
- the cooling water line closes directly to the charge air line so that both lines have a common one Have partition.
- This training ensures a further manufacturing technology and also inexpensive design.
- Charge air line and the cooling water line in one piece, but not train with a common partition. Through this Design is a thermal insulation of both lines achieved, which may be necessary in certain applications.
- the tub has an end face End externally accessible indentations on the insertion of Fastening screws in the recessed in the bulkhead Allow mounting holes. Furthermore, in the opposite front end of the tub in there Bulkhead opposite the mounting holes Blind hole thread inserted.
- This training enables in the Area of the tub a very space-saving and the outer contour of the Charge air line with the tub in this area is not enlarging Fastening possibility by the functionality the reduced cross-sectional area is not a disadvantage. This can the charge air line with the tub through this optimized design deep into the v-space between the two rows of cylinders one V-type internal combustion engine. This will total the overall height of the internal combustion engine is reduced.
- the intake manifold which the charge air line with connect the intake ports of the individual cylinder heads, in one piece molded onto the cylinder heads and designed so that they under Insertion of an elastic round seal on the corresponding Place openings in the charge air line.
- the charge air line 1 is in the V-space between the two rows of cylinders of a V-shaped design Internal combustion engine used.
- the charge air line 1 is off individual charge air line sections 2 composed.
- the individual charge air line sections have attachment pieces 3 on, are passed through the fastening screws with which the assembled to the charge air line 1
- Charge air line sections 2 in the V-space of the internal combustion engine are attachable.
- the internal combustion engine only has one partially shown crankcase 4 on the one Intermediate housing 5 is placed, the connection to one Cylinder head 6 produces.
- In the intermediate housing 5 is in one Crankcase 4 ragedes cylinder tube 7 used with a circumferential collar 8 between the intermediate housing 5 and the Cylinder head 6 is clamped.
- In the cylinder tube 7 there is a piston 9, which is connected to a crankshaft via a connecting rod, is movable.
- the cylinder tube 7 is in the one surrounded by the intermediate housing 5 Area coolable by cooling water, the cooling water from the Intermediate housing in the cylinder head 6, which is also to be cooled is forwarded. From the cylinder head 6, the cooling water is on the highest point through a pipe section 11 in a above the Charge air line 1 arranged cooling water line 10 passed.
- the exemplary embodiment according to FIG. 1 is the cooling water line 10 spacing feet 12 in one piece on the charge air line 1 arranged. According to an embodiment not shown, it is but also provided the cooling water line 10 with omission the feet 12 to be placed directly on the charge air line 1, so that the both lines have a common partition.
- the Charge air line 1 also has charge air connections 13 which are connected to Connection piece 14 to the intake ports of the cylinder heads 6 work together. These connecting pieces 14 are under insertion an elastic seal 15 without further screwing on the Charge air connections 13.
- a trough 16 is also formed on the charge air line 1 geodetically lowest point of the charge air line 1 is arranged.
- the Trough 16 has a substantially trapezoidal shape, wherein the shorter one at its geodetically lowest point Has trapezoidal legs.
- the tub 16 catches that in the Charge air line 1 excreted oil that is on the walls settles on. This oil can then be collected in a suitable form be dissipated.
- the Trough area, the cross-sectional area of the charge air line 1 is not influenced, in particular not reduced, so that a flow influence the charge air, for example by narrowing the cross-section is largely excluded.
- the tub has bulkheads 17 which correspond to the contour of the tubular charge air line, that is, the bulkheads 17 point to the charge air line 1 circular arc training.
- the individual charge air line sections 2 according to FIG. 2 instruct their front ends on flanges 18a, 18b, in the openings are inserted through which the charge air line sections 2 are screwed together. Similar flanges are on the Cooling water line 10 is provided.
- the tub 16, however, instructs the front end 18b an externally accessible indentation 19 on the insertion of mounting screws into the Bulkhead allow 17 recessed mounting holes.
- On the opposite ends 18a are in the bulkhead 17 blind hole threads opposite the mounting holes let in. The fastening screws are screwed into this.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Exhaust-Gas Circulating Devices (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Exhaust Silencers (AREA)
Abstract
Description
Die Erfindung betrifft eine Brennkraftmaschine mit einem Kurbelgehäuse, in dem eine Kurbelwelle drehbar gelagert ist, an der zumindest ein Pleuel angelenkt ist, das einen Kolben trägt, der in einem von einem Zylinderkopf abgedeckten Zylinderrohr bewegbar ist. wobei in den Zylinderkopf eingelassene Gaswechselventile mit einer Abgasleitung und einer als Ladeluftleitung ausgebildeten Verbrennungsluftleitung verbunden sind, die an geodätisch niedrigster Stelle eine Ölfangeinrichtung aufweist, die als Wanne ausgebildet ist.The invention relates to an internal combustion engine with a crankcase, in which a crankshaft is rotatably mounted, at least a connecting rod is articulated which carries a piston which in a cylinder tube covered by a cylinder head is movable is. with gas exchange valves embedded in the cylinder head with one exhaust pipe and one trained as charge air line Combustion air line connected are at the geodetically lowest point an oil trap has, which is designed as a tub.
Eine derartige Brennkraftmaschine mit einer Verbrennungsluftleitung ist aus der DE-A 2 052 501 bekannt. Diese Verbrennungsluftleitung ist kompliziert geformt, so daß der Herstellungsaufwand erheblich ist. Zudem sind durch diese Ausgestaltung die Strömungsverhältnisse nicht optimal. Dabei weist dies Verbrennungsluftleitung einen Sammler für Flüssigkeit auf, der durch eine im wesentlichen dreieckförmige mittige Erweiterung der Verbrennungsluftleitung gebildet ist. Durch diese Ausbildung werden die Strömungsverhältnisse weiter ungünstig beeinflußt.Such an internal combustion engine with a combustion air line is known from DE-A 2 052 501. This combustion air line is intricately shaped, so that the production costs are considerable is. In addition, the flow conditions are due to this configuration not optimal. This shows the combustion air line a collector for liquid, which is essentially a triangular central expansion of the combustion air line is formed. Through this training, the flow conditions further adversely affected.
Weiterhin ist die JP-A 57-193755 bekannt, die eine Ansaugleitung mit einem Sammelteil für Kondenswasser aufweist. Dabei wird durch eine spezielle Ausgestaltung verhindert, daß das Kondenswasser in eine Drosselkammer eindringen kann.Furthermore, JP-A 57-193755 is known which has an intake line has a collecting part for condensed water. This is done by a special design prevents the condensation in a throttle chamber can penetrate.
Der Erfindung liegt die Aufgabe zugrunde, eine Brennkraftmaschine mit einer Verbrennungsluftleitung bereitzustellen, die die zuvor geschilderten Nachteile vermeidet und darüber hinaus für eine weitgehend ölfreie Verbrennungsluftzuführung zu den einzelnen Zylindern sorgt.The invention has for its object an internal combustion engine with a combustion air line to provide the previously avoids the disadvantages described and also for a largely oil-free combustion air supply to the individual Cylinders.
Diese Aufgabe wird dadurch gelöst, daß die Ladeluftleitung aus Ladeluftleitungsabschnitten zusammensetzbar ist. Gerade bei aufgeladenen Brennkraftmaschinen wird beobachtet, daß über die Kurbelgehäuseentlüftung mitgeführtes Öl trotz eines Ölabscheiders nicht so weit aus der anschließend verdichtenden Verbrennungsluft ausgeschieden ist, daß in der nachfolgenden Ladeluftleitung keine weitere Ölabscheidung mehr erfolgt. Daher ist insbesondere bei einer Ladeluftleitung eine Ölfangvorrichtung in Form einer Wanne vorteilhaft einsetzbar. Die Ladeluftleitung aus einzelnen Ladeluftleitungsabschnitten zusammenzusetzen, ist insbesondere für eine in mehreren Varianten gefertigte Brennkraftmaschine einer Baureihe vorteilhaft, wenn beispielsweise verschiedene Zylinderzahlen realisiert werden sollen. So ist es beispielsweise im Rahmen der Erfindung möglich und vorgesehen bei einer 16-zylindrigen V-Brennkraftmaschine die Ladeluftleitungsabschnitte von zwei benachbarten Zylindern einer Reihe und der entsprechenden gegenüberliegenden Zylinderreihe an einem Ladeluftleitungsabschnitt anzuschließen, so daß dieser Ladeluftleitungsabschnitt vier Zylinder mit Ladeluft versorgt. Somit kann durch einfaches Aneinandersetzen von Ladeluftleitungsabschnitten beispielsweise eine 8-Zylinderversion, eine 12-Zylinderversion und die erwähnte 16-Zylinderversion mit identisch ausgebildeten Ladeluftleitungsabschnitten realisiert werden. Dabei ist die Wanne aus Wannenabschnitten entsprechend den Ladeluftleitungsabschnitten zusammengesetzt. Diese Ausbildung bietet sich für ein produktionstechnisch einfaches und kostengünstiges Herstellen einer derart ausgebildeten Ladeluftleitung an. Die Wannenabschnitten weisen an ihren längsseitigen Enden Schottwände auf, die der Kontur der rohrförmigen Ladeluftleitung entsprechen. Diese Schottwände gewährleisten einerseits eine weitere Versteifung der Wannenabschnitte mitsamt den Ladeluftleitungsabschnitten und sie bewirken darüber hinaus eine Strömungsberuhigung in den Wannenabschnitten. Dadurch kann das aus der Ladeluft ausgeschiedene Öl sich ohne weiter von der Luftströmung mitgerissen zu werden in der Wanne absetzen und abgeführt werden.This object is achieved in that the Charge air line can be assembled from charge air line sections is. Especially with supercharged internal combustion engines it is observed that entrained via the crankcase ventilation Oil despite an oil separator not so far from the subsequent one compressed combustion air is excreted that in the subsequent charge air line no more oil separation he follows. Therefore, in particular in the case of a charge air line, there is an oil trap Can be used advantageously in the form of a tub. The To assemble the charge air line from individual charge air line sections, is especially for one made in several variants Internal combustion engine of a series advantageous if, for example different numbers of cylinders are to be realized. So it is possible and provided for example within the scope of the invention in the case of a 16-cylinder V internal combustion engine, the charge air line sections of two adjacent cylinders in a row and the corresponding opposite row of cylinders to connect a charge air line section, so that this charge air line section four cylinders supplied with charge air. So can by simply putting together charge air duct sections for example an 8-cylinder version, a 12-cylinder version and the aforementioned 16-cylinder version with identical charge air duct sections will be realized. The tub is out Sump sections corresponding to the charge air line sections composed. This training is suitable for a production technology simple and inexpensive to manufacture such a trained charge air line. The tub sections point at their longitudinal ends bulkheads that match the contour correspond to the tubular charge air line. These bulkheads guarantee further stiffening of the tub sections together with the charge air line sections and effect them in addition, a calming of the flow in the tub sections. As a result, the oil separated from the charge air can escape without to be carried away by the air flow in the tub stop and be led away.
In Weiterbildung der Erfindung ist die Wanne einstückig mit der Verbrennungsluftleitung gefertigt und die Querschnittsfläche der Wanne bildet eine Zusatzfläche zu der Querschnittsfläche der Verbrennungsluftleitung. Die Verbrennungsluftleitung ist dabei im wesentlichen rohrförmig ausgebildet. Die Wanne ist zumindest angenähert trapezförmig ausgebildet, wobei sich deren trapezförmige Seitenwände unterhalb der Äquatorebene in geradliniger Verlängerung der Wände der Verbrennungsluftleitung erstrecken. Durch diese Ausbildung ist eine fertigungstechnisch sehr günstig zu realisierende Form realisiert, die zudem ausgesprochen steif und somit auch bezüglich der Geräuschemission sehr günstig ist.In a development of the invention, the tub is in one piece with the Combustion air line manufactured and the cross-sectional area of the Pan forms an additional area to the cross-sectional area of the combustion air line. The combustion air line is essentially tubular. The tub is at least approximated trapezoidal, with their trapezoidal Side walls below the equatorial plane in a straight extension of the walls of the combustion air line. By this training is a very cheap to implement Realized form, which is also extremely rigid and therefore is also very cheap in terms of noise emissions.
In Weiterbildung der Erfindung ist an die Ladeluftleitung an geodätisch höchster Stelle eine Kühlwasserleitung einstückig angeformt. Dabei ist die Kühlwasserleitung entsprechend den Ladeluftleitungsabschnitten unterteilt. Durch diese Kühlwasserleitung beziehungsweise diese Kühlwasserleitungsabschnitte wird das Kühlwasser, das über Verbindungsstücke von den Zylinderköpfen der Brennkraftmaschine in diese Leitung eingeleitet wird zu einem Kühlwasserwärmetauscher zurückgeführt. Die Kombination der Kühlwasserleitung mit der Ladeluftleitung trägt also mit zu einer weiteren Verringerung des Bau- und Fertigungsaufwandes der Brennkraftmaschine bei, da das Kühlwasser aus den gleichen Zylinderköpfen, die umgekehrt mit Ladeluft versorgt werden müssen, abgeführt werden muß.In a further development of the invention, the charge air line is geodetic A cooling water pipe is integrally formed at the highest point. The cooling water line is in accordance with the charge air line sections divided. Through this cooling water pipe respectively these cooling water pipe sections becomes the cooling water that via connectors from the cylinder heads of the internal combustion engine is introduced into this line to a cooling water heat exchanger returned. The combination of the cooling water pipe with the charge air line thus contributes to a further reduction the construction and manufacturing costs of the internal combustion engine at, since the cooling water comes from the same cylinder heads that Conversely, it must be supplied with charge air got to.
In Weiterbildung der Erfindung schließt die Kühlwasserleitung direkt an die Ladeluftleitung an, so daß beide Leitungen eine gemeinsame Trennwand aufweisen. Diese Ausbildung gewährleistet eine weitere fertigungstechnisch und auch kostenmäßig günstige Ausgestaltung. Im Rahmen der Erfindung ist es aber auch vorgesehen, die Ladeluftleitung und die Kühlwasserleitung zwar einstückig, aber nicht mit einer gemeinsamen Trennwand auszubilden. Durch diese Ausgestaltung wird eine thermische Isolation von beiden Leitungen erreicht, die bei bestimmten Anwendungsfällen nötig sein kann.In a further development of the invention, the cooling water line closes directly to the charge air line so that both lines have a common one Have partition. This training ensures a further manufacturing technology and also inexpensive design. In the context of the invention, however, it is also provided that Charge air line and the cooling water line in one piece, but not train with a common partition. Through this Design is a thermal insulation of both lines achieved, which may be necessary in certain applications.
In Weiterbildung der Erfindung weisen die Ladeluftleitung und die Kühlwasserleitung außenliegende Befestigungsflansche auf. Diese Ausbildung ermöglicht ein einfaches Verbinden der einzelnen Leitungsabschnitte untereinander und an den Endbereichen mit entsprechenden Deckeln oder Anschlußstücken.In a further development of the invention, the charge air line and the Cooling water pipe external mounting flanges. This Training enables the individual to be easily connected Line sections with each other and at the end areas with appropriate lids or fittings.
In Weiterbildung der Erfindung weist die Wanne an einem stirnseitigen Ende von außen zugängliche Einbuchtungen auf, die das Einführen von Befestigungsschrauben in in die Schottwand eingelassene Befestigungslöcher ermöglichen. Weiterhin sind in dem gegenüberliegenden stirnseitigen Ende der Wanne in die dortige Schottwand den Befestigungslöchern gegenüberliegende Sacklochgewinde eingelassen. Diese Ausbildung ermöglicht in dem Bereich der Wanne eine sehr platzsparende und die Außenkontur der Ladeluftleitung mit der Wanne in diesem Bereich nicht vergrößernde Befestigungsmöglichkeit, die bezüglich der Funktionsfähigkeit durch die verringerte Querschnittsfläche nicht von Nachteil ist. Dadurch kann die Ladeluftleitung mit der Wanne durch diese optimierte Ausgestaltung tief in den V-Raum zwischen den zwei Zylinderreihen einer V-Brennkraftmaschine eingelassen werden. Dadurch wird insgesamt die Bauhöhe der Brennkraftmaschine reduziert.In a further development of the invention, the tub has an end face End externally accessible indentations on the insertion of Fastening screws in the recessed in the bulkhead Allow mounting holes. Furthermore, in the opposite front end of the tub in there Bulkhead opposite the mounting holes Blind hole thread inserted. This training enables in the Area of the tub a very space-saving and the outer contour of the Charge air line with the tub in this area is not enlarging Fastening possibility by the functionality the reduced cross-sectional area is not a disadvantage. This can the charge air line with the tub through this optimized design deep into the v-space between the two rows of cylinders one V-type internal combustion engine. This will total the overall height of the internal combustion engine is reduced.
Im übrigen sind die Ansaugleitungsstutzen, die die Ladeluftleitung mit den Einlaßkanälen der einzelnen Zylinderköpfe verbinden, einstückig an die Zylinderköpfe angeformt und so ausgebildet, daß sie unter Einfügung einer elastischen Runddichtung auf entsprechenden Öffnungen in der Ladeluftleitung aufliegen. Durch die erfindungsgemäße steife Ausbildung der Ladeluftleitung und die gewählte Anordnung der Ladeluftleitung in dem V-Raum können die Ansaugstutzen sehr kurz ausgebildet sein und es brauchen keine zusätzlichen Verschraubungen zwischen den Ansaugstutzen und der Ladeluftleitung vorgesehen sein. Otherwise, the intake manifold, which the charge air line with connect the intake ports of the individual cylinder heads, in one piece molded onto the cylinder heads and designed so that they under Insertion of an elastic round seal on the corresponding Place openings in the charge air line. Through the Rigid design of the charge air line according to the invention and the selected arrangement of the charge air line in the V-space can Intake manifolds should be very short and do not need any additional screw connections between the intake manifold and the Charge air line may be provided.
Vorteilhafte Weiterbildungen der Erfindung sind der Zeichnungsbeschreibung zu entnehmen, in der ein in den Figuren dargestelltes Ausführungsbeispiel der Erfindung näher beschrieben ist.Advantageous developments of the invention are Drawing description can be seen in the one in the figures illustrated embodiment of the invention is described in more detail.
Es zeigen:
- Figur 1:
- Ein Querschnitt durch eine in den V-Raum einer Brennkraftmaschine eingesetzte Ladeluftleitung mit angeformter Wanne und aufgesetzter Kühlwasserleitung und
- Figur 2:
- einen Ladeluftleitungsabschnitt mit angeformter Kühlwasserleitung und Wanne in der Draufsicht.
- Figure 1:
- A cross section through a charge air line inserted in the V-space of an internal combustion engine with an integrally formed trough and an attached cooling water line and
- Figure 2:
- a charge air line section with molded cooling water line and tub in plan view.
Die erfindungsgemäße Ladeluftleitung 1 ist in den V-Raum zwischen
den beiden Zylinderreihen einer V-förmig ausgebildeten
Brennkraftmaschine eingesetzt. Dabei ist die Ladeluftleitung 1 aus
einzelnen Ladeluftleitungsabschnitten 2 zusammengesetzt. Die
einzelnen Ladeluftleitungsabschnitte weisen Befestigungsstutzen 3
auf, durch die Befestigungsschrauben geführt werden, mit denen die
zu der Ladeluftleitung 1 zusammengesetzten
Ladeluftleitungsabschnitte 2 in dem V-Raum der Brennkraftmaschine
befestigbar sind. Die Brennkraftmaschine weist im übrigen ein nur
teilweise dargestelltes Kurbelgehäuse 4 auf, auf das ein
Zwischengehäuse 5 aufgesetzt ist, das die Verbindung zu einem
Zylinderkopf 6 herstellt. In das Zwischengehäuse 5 ist ein bis in das
Kurbelgehäuse 4 ragedes Zylinderrohr 7 eingesetzt, das mit einem
umlaufenden Bund 8 zwischen dem Zwischengehäuse 5 und dem
Zylinderkopf 6 verspannt ist. In dem Zylinderrohr 7 ist ein Kolben 9,
der über ein Pleuel mit einer Kurbelwelle verbunden ist, bewegbar.The
Das Zylinderrohr 7 ist in dem von dem Zwischengehäuse 5 umgebenen
Bereich durch Kühlwasser kühlbar, wobei das Kühlwasser von dem
Zwischengehäuse in den ebenfalls zu kühlenden Zylinderkopf 6
weitergeleitet wird. Von dem Zylinderkopf 6 wird das Kühlwasser an
der höchsten Stelle durch ein Rohrstück 11 in eine oberhalb der
Ladeluftleitung 1 angeordnete Kühlwasserleitung 10 geleitet. In dem
Ausführungsbeispiel gemäß Figur 1 ist die Kühlwasserleitung 10 über
abstandshaltende Füße 12 einstückig auf der Ladeluftleitung 1
angeordnet. Gemäß einer nicht dargestellten Ausführungsform ist es
aber auch vorgesehen, die Kühlwasserleitung 10 unter Weglassung
der Füße 12 direkt auf der Ladeluftleitung 1 anzuordnen, so daß die
beiden Leitungen eine gemeinsame Trennwand aufweisen. Die
Ladeluftleitung 1 weist weiterhin Ladeluftanschlüsse 13 auf, die mit
Anschlußstutzen 14 zu den Einlaßkanälen der Zylinderköpfe 6
zusammenwirken. Diese Anschlußstutzen 14 liegen unter Einfügung
einer elastischen Dichtung 15 ohne weitere Verschraubung auf den
Ladeluftanschlüssen 13 auf.The cylinder tube 7 is in the one surrounded by the
An die Ladeluftleitung 1 ist weiterhin eine Wanne 16 angeformt, die an
geodätisch niedrigster Stelle der Ladeluftleitung 1 angeordnet ist. Die
Wanne 16 weist eine im wesentlichen trapezförmige Gestalt auf, wobei
sie an ihrer geodätisch niedrigsten Stelle den kürzeren
Trapezschenkel aufweist. Die Wanne 16 fängt das in der
Ladeluftleitung 1 ausgeschiedende Öl, das sich an den Wänden
absetzt, auf. Dieses aufgefangene Öl kann dann in geeigneter Form
abgeführt werden. In der Figur 1 ist zu erkennen, daß die
Wannenfläche die Querschnittsfläche der Ladeluftleitung 1 nicht
beeinflußt, insbesondere nicht verkleinert, so daß eine Strömungsbeeinflußung
der Ladeluft durch beispielsweise eine Querschnittsverengung
weitgehend ausgeschlossen ist.A
An den stirnseitigen Enden weist die Wanne Schottwände 17 auf, die
der Kontur der rohrförmigen Ladeluftleitung entsprechen, das heißt,
die Schottwände 17 weisen zu der Ladeluftleitung 1 eine
kreisbogenförmige Ausbildung auf.At the front ends, the tub has
Die einzelnen Ladeluftleitungsabschnitte 2 gemäß Figur 2 weisen an
ihren stirnseitigen Enden Flansche 18a, 18b auf, in die Öffnungen
eingelassen sind, durch die die Ladeluftleitungsabschnitte 2
miteinander verschraubbar sind. Ähnliche Flansche sind an der
Kühlwasserleitung 10 vorgesehen. Die Wanne 16 weist dagegen an
dem stirnseitigen Ende 18b eine von außen zugängliche Einbuchtung
19 auf, die das Einführen von Befestigungsschrauben in in die
Schottwand 17 eingelassene Befestigungslöcher ermöglichen. Auf dem
gegenüberliegenden stirnseitigen Ende 18a sind in die Schottwand 17
den Befestigungslöchern gegenüberliegende Sacklochgewinde
eingelassen. In diese werden die Befestigungsschrauben eingedreht.The individual charge air line sections 2 according to FIG. 2 instruct
their front ends on
Claims (6)
- An internal combustion engine comprising a crankcase (4) in which a crankshaft is rotatably mounted and pivotably connected to at least one connecting rod bearing a piston (9) movable in a cylinder pipe (7) covered by a cylinder head (6), wherein gas change valves inserted in the cylinder head (6) are connected to an exhaust pipe and a combustion-air duct in the form of a charge duct (1) which at the geodetically lowest place has an oil trap in the form of a sump (16),
characterised in that the charge duct (1) is made up of portions (2), the sump (16) is made up of portions corresponding to the charge-duct portions (2), and the sump portions are formed on their long sides with bulkhead partitions (17) corresponding to the contour of the tubular charge duct. - An engine according to claim 1, characterised in that the sump (16) is manufactured in one piece with the combustion-air duct and that the cross-sectional area of the sump (16) is in addition to the cross-sectional area of the combustion-air duct.
- An engine according to any of the preceding claims, characterised in that a cooling-water duct (10) is integrally formed on the charge duct (1) at the geodetically highest place.
- An engine according to claim 3, characterised in that the cooling-water duct (10) directly adjoins the charge duct (1) and the two have a common partition.
- An engine according to claim 3 or claim 4, characterised in that the charge duct (1) and the cooling-water duct (10) have external securing flanges (18a, 18b).
- An engine according to any of the preceding claims, characterised in that the sump (16) at one end face has externally accessible recesses (19) for insertion of screws into securing holes in the bulkhead partition (17), and blind bore threads associated with the securing holes are formed in the facing end face of the bulkhead partition (17).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4433285 | 1994-09-19 | ||
| DE4433285A DE4433285A1 (en) | 1994-09-19 | 1994-09-19 | Combustion air line of an internal combustion engine |
| PCT/EP1995/003661 WO1996009469A1 (en) | 1994-09-19 | 1995-09-18 | Combustion air duct of an internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0782667A1 EP0782667A1 (en) | 1997-07-09 |
| EP0782667B1 true EP0782667B1 (en) | 1998-07-15 |
Family
ID=6528558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95933384A Expired - Lifetime EP0782667B1 (en) | 1994-09-19 | 1995-09-18 | Combustion air duct of an internal combustion engine |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0782667B1 (en) |
| AT (1) | ATE168449T1 (en) |
| DE (2) | DE4433285A1 (en) |
| DK (1) | DK0782667T3 (en) |
| FI (1) | FI107754B (en) |
| WO (1) | WO1996009469A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2389147A (en) | 2002-05-31 | 2003-12-03 | Man B & W Diesel Ltd | I.c. engine air manifold arrangement |
| DE10251406B4 (en) * | 2002-11-05 | 2013-08-22 | Mann + Hummel Gmbh | Suction module for an internal combustion engine |
| DE102011102248B4 (en) * | 2011-05-23 | 2021-12-23 | Audi Ag | Internal combustion engine |
| JP6552096B2 (en) * | 2015-08-06 | 2019-07-31 | 三菱重工エンジン＆ターボチャージャ株式会社 | engine |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB143167A (en) * | 1919-01-14 | 1920-05-14 | William Colin Russell | Improvements relating to carburettors for internal combustion engines |
| GB369784A (en) * | 1930-06-21 | 1932-03-31 | Sulzer Ag | Improvements in or relating to air supply pipes for multicylinder internal combustion engines |
| DE1082454B (en) * | 1956-06-09 | 1960-05-25 | Kloeckner Humboldt Deutz Ag | Slot-controlled two-stroke internal combustion engine |
| FR2063795A5 (en) * | 1969-10-31 | 1971-07-09 | Saviem | |
| DE2055902A1 (en) * | 1970-11-13 | 1972-05-18 | Motoren- Und Turbinen-Union Friedrichshafen Gmbh, 7990 Friedrichshafen | Multi-cylinder internal combustion engine |
| DE2702160C2 (en) * | 1977-01-20 | 1982-09-23 | Volkswagenwerk Ag, 3180 Wolfsburg | Suction system |
| DD158415A1 (en) * | 1981-04-16 | 1983-01-12 | Hans Berg | COOLING SYSTEM OF AN INTERNAL COMBUSTION ENGINE WITH EXHAUST LOADING AND CHARGE COOLING |
| JPS57193755A (en) * | 1981-05-25 | 1982-11-29 | Nissan Motor Co Ltd | Intake passage device of internal combustion engine |
| DE3338273A1 (en) * | 1983-10-21 | 1985-05-02 | Volkswagenwerk Ag, 3180 Wolfsburg | Drive arrangement for vehicles |
| JPS61108860A (en) * | 1984-11-01 | 1986-05-27 | Yanmar Diesel Engine Co Ltd | Intake-manifold for multi-cylinder engine |
| JPS61175213A (en) * | 1985-01-30 | 1986-08-06 | Honda Motor Co Ltd | Breather device in cam casing in engine |
| DE3705767A1 (en) * | 1987-02-24 | 1988-09-01 | Bayerische Motoren Werke Ag | AIR COLLECTOR |
| CH675147A5 (en) * | 1987-08-03 | 1990-08-31 | Bbc Brown Boveri & Cie | |
| DE3726332C1 (en) * | 1987-08-07 | 1988-06-23 | Bayerische Motoren Werke Ag | Intake pipe part of an internal combustion engine |
| FR2660017B1 (en) * | 1990-03-22 | 1992-07-31 | Peugeot | DEVICE FOR INTAKE AND DEHUILATION OF GASES IN AN INTERNAL COMBUSTION ENGINE AND ENGINE EQUIPPED WITH SUCH A DEVICE. |
-
1994
- 1994-09-19 DE DE4433285A patent/DE4433285A1/en not_active Withdrawn
-
1995
- 1995-09-18 WO PCT/EP1995/003661 patent/WO1996009469A1/en active IP Right Grant
- 1995-09-18 EP EP95933384A patent/EP0782667B1/en not_active Expired - Lifetime
- 1995-09-18 DK DK95933384T patent/DK0782667T3/en active
- 1995-09-18 DE DE59502847T patent/DE59502847D1/en not_active Expired - Lifetime
- 1995-09-18 AT AT95933384T patent/ATE168449T1/en active
-
1997
- 1997-03-18 FI FI971135A patent/FI107754B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| ATE168449T1 (en) | 1998-08-15 |
| DE4433285A1 (en) | 1996-03-21 |
| WO1996009469A1 (en) | 1996-03-28 |
| FI107754B (en) | 2001-09-28 |
| DE59502847D1 (en) | 1998-08-20 |
| EP0782667A1 (en) | 1997-07-09 |
| FI971135A0 (en) | 1997-03-18 |
| FI971135A (en) | 1997-03-18 |
| DK0782667T3 (en) | 1999-03-01 |
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