WO2000014393A1 - Internal combustion engine with at least two rows of cylinders arranged in a v-shape - Google Patents

Internal combustion engine with at least two rows of cylinders arranged in a v-shape Download PDF

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Publication number
WO2000014393A1
WO2000014393A1 PCT/EP1999/006196 EP9906196W WO0014393A1 WO 2000014393 A1 WO2000014393 A1 WO 2000014393A1 EP 9906196 W EP9906196 W EP 9906196W WO 0014393 A1 WO0014393 A1 WO 0014393A1
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WIPO (PCT)
Prior art keywords
cylinders
internal combustion
combustion engine
row
engine according
Prior art date
Application number
PCT/EP1999/006196
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German (de)
French (fr)
Inventor
Dietmar Lagies
Original Assignee
Volkswagen Aktiengesellschaft
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Publication date
Application filed by Volkswagen Aktiengesellschaft filed Critical Volkswagen Aktiengesellschaft
Priority to EP99946017A priority Critical patent/EP1112444B1/en
Priority to DE59903491T priority patent/DE59903491D1/en
Publication of WO2000014393A1 publication Critical patent/WO2000014393A1/en

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Classifications

    • 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
    • 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
    • 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
    • F02B75/224—Multi-cylinder engines with cylinders in V, fan, or star arrangement with cylinders in fan arrangement
    • 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
    • F01L1/026—Gear drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/02—Cylinders; Cylinder heads  having cooling means
    • F02F1/10—Cylinders; Cylinder heads  having cooling means for liquid cooling
    • F02F2001/106—Cylinders; Cylinder heads  having cooling means for liquid cooling using a closed deck, i.e. the water jacket is not open at the block top face

Definitions

  • the invention relates to an internal combustion engine, in particular for a motor vehicle, with at least two rows of cylinders arranged in a V-shape with respect to one another, according to the preamble of claim 1.
  • the present invention is therefore based on the object of providing an improved internal combustion engine of the type mentioned above, wherein the disadvantages mentioned above are overcome and a compact and space-saving output from a crankshaft for driving camshafts of respective cylinder rows can be realized.
  • a row of cylinders is divided into two cylinder arrangements.
  • the division of the divided cylinder row expediently defines a division plane which is arranged perpendicular to an axis of rotation of a crankshaft of the internal combustion engine.
  • the division of the first row of cylinders is formed centrally in two symmetrical cylinder arrangements.
  • An improvement in the mechanical stability of the internal combustion engine with a divided row of cylinders is achieved by forming at least one web, in particular four webs, to at least one adjacent row of cylinders adjacent to the divided row of cylinders and essentially parallel to a division plane. It is particularly expedient here if the respective cylinder rows are designed in a closed deck construction.
  • At least one web has an opening for carrying out a drive for an auxiliary unit.
  • At least one fastening device for at least one water pump is formed in a particularly advantageous manner adjacent to a parting plane of the divided cylinder row between this and an adjacent undivided cylinder row. This saves additional drives for the water pump elsewhere, which saves space and weight.
  • a single output for driving both the camshaft of the central cylinder row and the two adjacent cylinder rows can advantageously be realized from the central output of the central, divided cylinder row.
  • a particularly space-saving arrangement for installation in an engine compartment of a motor vehicle is achieved in that the three rows of cylinders are arranged in a V-shape relative to one another such that an outer row of cylinders is arranged essentially horizontally in an operating position of the internal combustion engine.
  • a particularly good supply of cooling water to the rows of cylinders is achieved by providing two water pumps, each water pump supplying cooling water to an outer row of cylinders and a cylinder arrangement of the divided row of cylinders.
  • each row of cylinders has six cylinders.
  • FIG. 1 shows a preferred embodiment of an internal combustion engine according to the invention in a perspective view
  • FIG. 3 shows a crankcase upper part of an internal combustion engine according to the invention in a perspective view
  • Fig. 5 is a sectional view of the crankcase upper part along line A-A of Fig. 4.
  • FIG. 6 is a side view of the crankcase upper part of FIG. 3rd
  • crankcase 10 The preferred embodiment of an internal combustion engine according to the invention shown in FIGS. 1 and 2 comprises a crankcase 10 and an oil pan 12, a lower part of the crankcase 10 being designed as a bearing cross member 14 on the oil pan side.
  • the crankcase 10 comprises three cylinder banks or cylinder rows 16, 18 and 20 arranged in a V-shape with respect to one another, although a different number of cylinder rows is possible.
  • FIG. 1 denotes a direction of travel and thus indicates an installation position of the internal combustion engine according to the invention in a motor vehicle .
  • the inventive design of the upper crankcase part 10 can be seen in detail from FIGS. 3 to 6, the following explanations relating to all of the FIGS. 1 to 6.
  • the cylinder bank 18 is divided into two cylinder arrangements 30 and 32 by a recess 28. 5, this recess 28 is formed such that a crankshaft, not shown, is exposed over a predetermined section. From this exposed section, a center drive can be realized from the inside of the crankcase upper part 10, which drives, for example, both a camshaft of the cylinder bank 18 and respective camshafts of the neighboring cylinder banks 16 and 20. In this way, frontal output from the camshaft to respective camshafts of the cylinder banks 16, 18 and 20 is avoided.
  • the division or recess 28 of the cylinder bank 18 defines a division plane which is essentially perpendicular to the crankshaft of the internal combustion engine. Adjacent to the recess 28, two webs 34 each extend from the cylinder row 18 to an adjacent cylinder row 16 and 20. A total of four webs 32 are thus formed in the V-shaped recesses between the cylinder rows 16, 18, 20, which provide additional stiffening cause the crankcase upper part 10.
  • Each web 34 is provided with an opening 36 and a fastening device 38 for a water pump, not shown, is formed adjacent to each web.
  • a water pump for example, two water pumps are provided, one water pump each being arranged in a V-shaped recess between the rows of cylinders 16, 18, 20.
  • a water pump supplies, for example, the cylinder bank 16 and the cylinder arrangement 32 and the corresponding other water pump supplies the cylinder bank 20 and the cylinder arrangement 30 with cooling water.
  • Corresponding drive means such as, for example, a shaft with a gearwheel at the end, are guided through a respective opening 38 in a respective web 34, the drive means serving to drive the respective water pump and being driven by the center drive.
  • This means that the center drive from the crankshaft not only drives the camshafts but also the water pumps at the same time, which saves further installation space and weight.
  • each row of cylinders 16, 18 and 20 comprises six cylinders 40 and the divided row of cylinders 18 is symmetrically divided in the middle such that each cylinder arrangement 30 or 32 has three cylinders 40.
  • reference numeral 42 denotes a crankshaft center and reference numeral 44 a secondary shaft center.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

The invention relates to an internal combustion engine (16, 18, 20), especially an internal combustion engine in a motor vehicle, wherein one row of cylinders (18) is divided up into two cylinder arrangements (30, 32).

Description

Brennkraftmaschine mit wenigstens zwei V-förmig zueinander angeordneten Internal combustion engine with at least two V-shaped arranged to each other
ZylinderreihenRows of cylinders
Die Erfindung betrifft eine Brennkraftmaschine, insbesondere für ein Kraftfahrzeug, mit wenigstens zwei V-förmig zueinander angeordneten Zylinderreihen, gemäß dem Oberbegriff des Anspruchs 1.The invention relates to an internal combustion engine, in particular for a motor vehicle, with at least two rows of cylinders arranged in a V-shape with respect to one another, according to the preamble of claim 1.
Bei derartigen Brennkraftmaschinen ergibt sich das Problem, daß ein Abtrieb von einer Kurbelwelle zum Antrieb jeweiliger Nockenwellen der Zylinderreihen sehr schwierig zu realisieren ist. Bisher bekannte Abtriebe bei derartigen Brennkraftmaschinen sind stirnseitig angeordnet, dies hat jedoch den Nachteil, daß sich eine große Baulänge der Brennkraftmaschine ergibt. Bei immer kleiner werdenden Bauräumen, beispielsweise in Kraftfahrzeugen, stößt diese Anordnung insbesondere bei großer Zylinderzahl jedoch schnell an Grenzen.In such internal combustion engines, the problem arises that an output from a crankshaft for driving respective camshafts of the cylinder banks is very difficult to achieve. Previously known drives in such internal combustion engines are arranged on the end face, but this has the disadvantage that the internal combustion engine has a large overall length. With installation spaces becoming smaller and smaller, for example in motor vehicles, this arrangement quickly reaches its limits, particularly when there are a large number of cylinders.
Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, eine verbesserte Brennkraftmaschine der obengenannten Art zur Verfügung zu stellen, wobei die obengenannten Nachteile überwunden werden und ein kompakter und bauraumsparender Abtrieb von einer Kurbelwelle zum Antrieb von Nockenwellen jeweiliger Zylinderreihen realisierbar ist.The present invention is therefore based on the object of providing an improved internal combustion engine of the type mentioned above, wherein the disadvantages mentioned above are overcome and a compact and space-saving output from a crankshaft for driving camshafts of respective cylinder rows can be realized.
Diese Aufgabe wird erfindungsgemäß durch eine Brennkraftmaschine der o.g. Art mit den in Anspruch 1 gekennzeichneten Merkmalen gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind in den abhängigen Ansprüchen angegeben.This object is achieved by an internal combustion engine of the above. Kind with the features characterized in claim 1 solved. Advantageous embodiments of the invention are specified in the dependent claims.
Dazu ist es erfindungsgemäß vorgesehen, daß eine Zylinderreihe in zwei Zylinderanordnungen unterteil ist.For this purpose, it is provided according to the invention that a row of cylinders is divided into two cylinder arrangements.
Dies hat den Vorteil, daß mit einer Teilung einer einzigen Zylinderreihe ein Mittenabtrieb für jeweilige Nockenwellen aller Zylinderreihen realisierbar ist, ohne alle Zylinderreihen teilen zu müssen.This has the advantage that a center drive for respective camshafts of all cylinder rows can be achieved with a division of a single cylinder row without having to divide all cylinder rows.
Zweckmäßigerweise definiert die Teilung der geteilten Zylinderreihe eine Teilungsebene, welche senkrecht zu einer Drehachse einer Kurbelwelle der Brennkraftmaschine angeordnet ist. In einer besonders bauraumsparenden Ausführungsform ist die Teilung der ersten Zylinderreihe mittig in zwei symmetrische Zylinderanordnungen ausgebildet.The division of the divided cylinder row expediently defines a division plane which is arranged perpendicular to an axis of rotation of a crankshaft of the internal combustion engine. In a particularly space-saving embodiment, the division of the first row of cylinders is formed centrally in two symmetrical cylinder arrangements.
Eine Verbesserung der mechanischen Stabilität der Brennkraftmaschine mit geteilter Zylinderreihe erzielt man dadurch, daß von der geteilten Zylinderreihe benachbart und im wesentlichen parallel zu einer Teilungsebene wenigstens ein Steg, insbesondere vier Stege, zu wenigstens einer benachbarten Zylinderreihe ausgebildet ist. Hierbei ist es besonders zweckmäßig, wenn die jeweiligen Zylinderreihen in Closed Deck-Bauweise ausgebildet sind.An improvement in the mechanical stability of the internal combustion engine with a divided row of cylinders is achieved by forming at least one web, in particular four webs, to at least one adjacent row of cylinders adjacent to the divided row of cylinders and essentially parallel to a division plane. It is particularly expedient here if the respective cylinder rows are designed in a closed deck construction.
Zum Antrieb von Nebenaggregaten durch den einzigen in der geteilten Zylinderreihe angeordneten Abtrieb von einer Kurbelwelle weist in besonders bevorzugter Weise wenigstens ein Steg eine Durchbrechung zur Durchführung eines Antriebs für ein Nebenaggregat auf.To drive auxiliary units by means of the single output from a crankshaft arranged in the divided row of cylinders, in a particularly preferred manner, at least one web has an opening for carrying out a drive for an auxiliary unit.
Zum gleichzeitigen Antrieb von jeweiligen Wasserpumpen, welche jeweilige Zylinderanordnungen bzw. Zylinderreihen bzw. Zylinderreihenteile mit Kühlwasser versorgen, ist in besonders vorteilhafter Weise benachbart zu einer Teilungsebene der geteilten Zylinderreihe zwischen dieser und einer benachbarten ungeteilten Zylinderreihe wenigstens eine Befestigungsvorrichtung für wenigstens eine Wasserpumpe ausgebildet. Dies erspart zusätzliche Abtriebe für die Wasserpumpe an anderer Stelle, wodurch Bauraum und Gewicht eingespart ist.In order to simultaneously drive respective water pumps which supply respective cylinder arrangements or cylinder rows or cylinder row parts with cooling water, at least one fastening device for at least one water pump is formed in a particularly advantageous manner adjacent to a parting plane of the divided cylinder row between this and an adjacent undivided cylinder row. This saves additional drives for the water pump elsewhere, which saves space and weight.
Beispielsweise sind drei V-förmig zueinander angeordnete Zylinderreihen vorgesehen, wobei die geteilte Zylinderreihe eine mittige Zylinderreihe ist. Hierdurch ist von dem Mittenabtrieb der mittigen, geteilten Zylinderreihe in vorteilhafter Weise ein einziger Abtrieb zum Antrieb sowohl der Nockenwelle der mittigen Zylinderreihe als auch der beiden benachbarten Zylinderreihen realisierbar.For example, three rows of cylinders arranged in a V-shape are provided, the divided row of cylinders being a central row of cylinders. As a result, a single output for driving both the camshaft of the central cylinder row and the two adjacent cylinder rows can advantageously be realized from the central output of the central, divided cylinder row.
Eine besonders bauraumsparende Anordnung zum Einbau in einen Motorraum eines Kraftfahrzeuges erzielt man dadurch, daß die drei Zylinderreihen derart zueinander V-förmig angeordnet sind, daß eine äußere Zylinderreihe in einer Betriebsstellung der Brennkraftmaschine im wesentlichen waagrecht angeordnet ist.A particularly space-saving arrangement for installation in an engine compartment of a motor vehicle is achieved in that the three rows of cylinders are arranged in a V-shape relative to one another such that an outer row of cylinders is arranged essentially horizontally in an operating position of the internal combustion engine.
Eine besonders gute Kühlwasserversorgung der Zylinderreihen erzielt man dadurch, daß zwei Wasserpumpen vorgesehen sind, wobei jede Wasserpumpe jeweils eine außen liegende Zylinderreihe und eine Zylinderanordnung der geteilten Zylinderreihe mit Kühlwasser versorgt. In einer besonders bevorzugten Ausführungsform weist jede Zylinderreihe sechs Zylinder auf.A particularly good supply of cooling water to the rows of cylinders is achieved by providing two water pumps, each water pump supplying cooling water to an outer row of cylinders and a cylinder arrangement of the divided row of cylinders. In a particularly preferred embodiment, each row of cylinders has six cylinders.
Weitere Merkmale, Vorteile und vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den abhängigen Ansprüchen, sowie aus der nachstehenden Beschreibung der Erfindung anhand der beigefügten Zeichnungen. Diese zeigen inFurther features, advantages and advantageous embodiments of the invention result from the dependent claims and from the following description of the invention with reference to the accompanying drawings. These show in
Fig. 1 eine bevorzugte Ausführungsform einer erfindungsgemäßen Brennkraftmaschine in perspektivischer Ansicht,1 shows a preferred embodiment of an internal combustion engine according to the invention in a perspective view,
Fig. 2 eine weitere perspektivische Ansicht,2 shows another perspective view,
Fig. 3 ein Kurbelgehäuseoberteil einer erfindungsgemäßen Brennkraftmaschine in perspektivischer Ansicht,3 shows a crankcase upper part of an internal combustion engine according to the invention in a perspective view,
Fig. 4 das Kurbelgehäuseoberteil von Fig. 3 in Aufsicht,4 shows the crankcase upper part from FIG. 3 in supervision,
Fig. 5 eine Schnittansicht des Kurbelgehäuseoberteils entlang Linie A-A von Fig. 4. undFig. 5 is a sectional view of the crankcase upper part along line A-A of Fig. 4. and
Fig. 6 eine Seitenansicht des Kurbelgehäuseoberteils von Fig. 3.6 is a side view of the crankcase upper part of FIG. 3rd
Die in Fig. 1 und 2 dargestellte bevorzugte Ausführungsform einer erfindungsgemäßen Brennkraftmaschine umfaßt ein Kurbelgehäuse 10 und eine Ölwanne 12, wobei ein unterer Teil des Kurbelgehäuses 10 ölwannenseitig als Lagertraverse 14 ausgebildet ist. Das Kurbelgehäuse 10 umfaßt in der beispielhaft dargestellten Ausführungsform drei V-förmig zueinander angeordnete Zylinderbänke bzw. Zylinderreihen 16, 18 und 20, wobei jedoch eine andere Anzahl von Zylinderreihen möglich ist.The preferred embodiment of an internal combustion engine according to the invention shown in FIGS. 1 and 2 comprises a crankcase 10 and an oil pan 12, a lower part of the crankcase 10 being designed as a bearing cross member 14 on the oil pan side. In the exemplary embodiment shown, the crankcase 10 comprises three cylinder banks or cylinder rows 16, 18 and 20 arranged in a V-shape with respect to one another, although a different number of cylinder rows is possible.
In Richtung des Pfeiles 22 befindet sich ein nicht dargestelltes rechtes, angetriebenes Rad und in Richtung des Pfeiles 24 befindet sich ein nicht dargestelltes linkes angetriebenes Rad. Ein Pfeil 26 in Fig. 1 bezeichnet eine Fahrtrichtung und kennzeichnet somit eine Einbaulage der erfindungsgemäßen Brennkraftmaschine in einem Kraftfahrzeug.In the direction of arrow 22 there is a right-hand driven wheel, not shown, and in the direction of arrow 24, there is a left-hand driven wheel, not shown. An arrow 26 in FIG. 1 denotes a direction of travel and thus indicates an installation position of the internal combustion engine according to the invention in a motor vehicle .
Die erfindungsgemäße Ausbildung des Kurbelgehäuseoberteils 10 ist im Detail aus den Fig. 3 bis 6 ersichtlich, wobei sich die nachfolgenden Ausführungen auf alle Figuren 1 bis 6 beziehen. Die Zylinderreihe 18 ist durch eine Ausnehmung 28 in zwei Zylinderanordnungen 30 und 32 geteilt. Wie sich insbesondere aus Fig. 5 ergibt, ist diese Ausnehmung 28 derart ausgebildet, daß eine nicht dargestellte Kurbelwelle über einen vorbestimmten Abschnitt freigelegt ist. Von diesem freigelegten Abschnitt ist ein Mittenabtrieb aus dem inneren des Kurbelgehäuseoberteils 10 aus realisierbar, wobei dieser beispielsweise sowohl eine Nockenwelle der Zylinderreihe 18 als auch jeweilige Nockenwellen der benachbarten Zylinderreihen 16 und 20 antreibt. Auf diese Weise ist ein stirnseitiger Abtrieb von der Nockenwelle zu jeweiligen Nockenwellen der Zylinderreihen 16, 18 und 20 vermieden.The inventive design of the upper crankcase part 10 can be seen in detail from FIGS. 3 to 6, the following explanations relating to all of the FIGS. 1 to 6. The cylinder bank 18 is divided into two cylinder arrangements 30 and 32 by a recess 28. 5, this recess 28 is formed such that a crankshaft, not shown, is exposed over a predetermined section. From this exposed section, a center drive can be realized from the inside of the crankcase upper part 10, which drives, for example, both a camshaft of the cylinder bank 18 and respective camshafts of the neighboring cylinder banks 16 and 20. In this way, frontal output from the camshaft to respective camshafts of the cylinder banks 16, 18 and 20 is avoided.
Die Teilung bzw. Ausnehmung 28 der Zylinderreihe 18 definiert eine Teilungsebene, welche im wesentlichen senkrecht zur Kurbelwelle der Brennkraftmaschine steht. Benachbart zu der Ausnehmung 28 erstrecken sich von der Zylinderreihe 18 je zwei Stege 34 zu einer benachbarten Zylinderreihe 16 und 20. Es sind somit in den V-förmigen Ausnehmungen zwischen den Zylinderreihen 16, 18, 20 insgesamt vier Stege 32 ausgebildet, welche eine zusätzliche Versteifung des Kurbelgehäuseoberteils 10 bewirken.The division or recess 28 of the cylinder bank 18 defines a division plane which is essentially perpendicular to the crankshaft of the internal combustion engine. Adjacent to the recess 28, two webs 34 each extend from the cylinder row 18 to an adjacent cylinder row 16 and 20. A total of four webs 32 are thus formed in the V-shaped recesses between the cylinder rows 16, 18, 20, which provide additional stiffening cause the crankcase upper part 10.
Jeder Steg 34 ist mit einer Durchbrechung 36 versehen und benachbart zu jedem Steg ist eine Befestigungsvorrichtung 38 für eine nicht dargestellte Wasserpumpe ausgebildet. Es sind beispielsweise zwei Wasserpumpen vorgesehen, wobei je eine Wasserpumpe in je einer V-förmigen Ausnehmung zwischen den Zylinderreihen 16, 18, 20 angeordnet ist. Eine Wasserpumpe versorgt dabei beispielsweise die Zylinderreihe 16 und die Zylinderanordnung 32 und die entsprechend andere Wasserpumpe versorgt die Zylinderreihe 20 und die Zylinderanordnung 30 mit Kühlwasser.Each web 34 is provided with an opening 36 and a fastening device 38 for a water pump, not shown, is formed adjacent to each web. For example, two water pumps are provided, one water pump each being arranged in a V-shaped recess between the rows of cylinders 16, 18, 20. A water pump supplies, for example, the cylinder bank 16 and the cylinder arrangement 32 and the corresponding other water pump supplies the cylinder bank 20 and the cylinder arrangement 30 with cooling water.
Durch eine jeweilige Durchbrechung 38 in einem jeweiligen Steg 34 sind entsprechende Antriebsmittel, wie beispielsweise eine Welle mit endseitigem Zahnrad, geführt, wobei das Antriebsmittel zum Antrieb der jeweiligen Wasserpumpe dient und von dem Mittenabtrieb angetrieben ist. Dadurch treibt der Mittenabtrieb von der Kurbelwelle nicht nur die Nockenwellen sondern auch gleichzeitig die Wasserpumpen an, was weiteren Bauraum und Gewicht einspart.Corresponding drive means, such as, for example, a shaft with a gearwheel at the end, are guided through a respective opening 38 in a respective web 34, the drive means serving to drive the respective water pump and being driven by the center drive. This means that the center drive from the crankshaft not only drives the camshafts but also the water pumps at the same time, which saves further installation space and weight.
In der dargestellten Ausführungsform umfaßt jede Zylinderreihe 16, 18 und 20 sechs Zylinder 40 und die geteilte Zylinderreihe 18 ist derart mittig, symmetrisch geteilt, daß jede Zylinderanordnung 30 bzw. 32 drei Zylinder 40 aufweist. In Fig. 4 und 5 bezeichnet die Bezugsziffer 42 eine Kurbelwellenmitte und die Bezugsziffer 44 eine Nebenwellenmitte. In the illustrated embodiment, each row of cylinders 16, 18 and 20 comprises six cylinders 40 and the divided row of cylinders 18 is symmetrically divided in the middle such that each cylinder arrangement 30 or 32 has three cylinders 40. 4 and 5, reference numeral 42 denotes a crankshaft center and reference numeral 44 a secondary shaft center.

Claims

PATENTANSPRÜCHE PATENT CLAIMS
1. Brennkraftmaschine, insbesondere für ein Kraftfahrzeug, mit wenigstens zwei V-förmig zueinander angeordneten Zylinderreihen (16,18,20), dadurch gekennzeichnet, daß eine Zylinderreihe (18) in zwei Zylinderanordnungen (30,32) unterteil ist.1. Internal combustion engine, in particular for a motor vehicle, with at least two V-shaped rows of cylinders (16, 18, 20), characterized in that a row of cylinders (18) is divided into two cylinder arrangements (30, 32).
2. Brennkraftmaschine nach Anspruch 1 , dadurch gekennzeichnet, daß die Teilung (28) der geteilten Zylinderreihe (18) eine Teilungsebene definiert, welche senkrecht zu einer Drehachse einer Kurbelwelle der Brennkraftmaschine angeordnet ist.2. Internal combustion engine according to claim 1, characterized in that the division (28) of the divided cylinder row (18) defines a division plane which is arranged perpendicular to an axis of rotation of a crankshaft of the internal combustion engine.
3. Brennkraftmaschine nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Teilung (28) der geteilten Zylinderreihe (18) mittig in zwei symmetrische Zylinderanordnungen (30,32) ausgebildet ist.3. Internal combustion engine according to claim 1 or 2, characterized in that the division (28) of the divided row of cylinders (18) is formed centrally in two symmetrical cylinder arrangements (30,32).
4. Brennkraftmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß von der geteilten Zylinderreihe (18) benachbart und im wesentlichen parallel zu einer Teilungsebene wenigstens ein Steg (34), insbesondere vier Stege (34), zu wenigstens einer benachbarten Zylinderreihe (16,20) ausgebildet ist.4. Internal combustion engine according to one of the preceding claims, characterized in that at least one web (34), in particular four webs (34), of at least one adjacent row of cylinders (16) adjacent to the divided row of cylinders (18) and substantially parallel to a division plane. 20) is formed.
5. Brennkraftmaschine nach Anspruch 4, dadurch gekennzeichnet, daß wenigstens ein Steg (34) eine Durchbrechung (36) zur Durchführung eines Antriebs für ein Nebenaggregat aufweist.5. Internal combustion engine according to claim 4, characterized in that at least one web (34) has an opening (36) for performing a drive for an auxiliary unit.
6. Brennkraftmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß benachbart zu einer Teilungsebene der geteilten Zylinderreihe (18) zwischen dieser und einer benachbarten ungeteilten Zylinderreihe (16,20) wenigstens eine Befestigungsvorrichtung (38) für wenigstens eine Wasserpumpe ausgebildet ist.6. Internal combustion engine according to one of the preceding claims, characterized in that at least one fastening device (38) for at least one water pump is formed adjacent to a parting plane of the divided row of cylinders (18) between this and an adjacent undivided row of cylinders (16, 20).
7. Brennkraftmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß drei V-förmig zueinander angeordnete Zylinderreihen (16,18,20) vorgesehen sind, wobei die geteilte Zylinderreihe eine mittige Zylinderreihe (18) ist. 7. Internal combustion engine according to one of the preceding claims, characterized in that three V-shaped mutually arranged rows of cylinders (16, 18, 20) are provided, the divided row of cylinders being a central row of cylinders (18).
8. Brennkraftmaschine nach Anspruch 7, dadurch gekennzeichnet, daß die drei Zylinderreihen (16, 18,20) derart zueinander V-förmig angeordnet sind, daß eine äußere Zylinderreihe (20) in einer Betriebsstellung der Brennkraftmaschine im wesentlichen waagrecht angeordnet ist.8. Internal combustion engine according to claim 7, characterized in that the three rows of cylinders (16, 18, 20) are arranged in a V-shape with respect to one another such that an outer row of cylinders (20) is arranged substantially horizontally in an operating position of the internal combustion engine.
9. Brennkraftmaschine nach Anspruch 7 oder 8, dadurch gekennzeichnet, daß zwei Wasserpumpen vorgesehen sind, wobei jede Wasserpumpe jeweils eine außen liegende Zylinderreihe (16 bzw. 20) und eine Zylinderanordnung (30 bzw. 32) der geteilten Zylinderreihe (18) mit Kühlwasser versorgt.9. Internal combustion engine according to claim 7 or 8, characterized in that two water pumps are provided, each water pump each supplying an outer cylinder bank (16 or 20) and a cylinder arrangement (30 or 32) of the divided cylinder bank (18) with cooling water .
10. Brennkraftmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß jede Zylinderreihe (16,18,20) sechs Zylinder (40) aufweist.10. Internal combustion engine according to one of the preceding claims, characterized in that each row of cylinders (16, 18, 20) has six cylinders (40).
11. Brennkraftmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die jeweiligen Zylinderreihen (16,18,20) als Closed Deck ausgebildet sind. 11. Internal combustion engine according to one of the preceding claims, characterized in that the respective rows of cylinders (16, 18, 20) are designed as a closed deck.
PCT/EP1999/006196 1998-09-05 1999-08-24 Internal combustion engine with at least two rows of cylinders arranged in a v-shape WO2000014393A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP99946017A EP1112444B1 (en) 1998-09-05 1999-08-24 Internal combustion engine with at least two rows of cylinders arranged in a v-shape
DE59903491T DE59903491D1 (en) 1998-09-05 1999-08-24 INTERNAL COMBUSTION ENGINE WITH AT LEAST TWO V-SHAPED CYLINDER ROWS

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19840658.4 1998-09-05
DE19840658A DE19840658A1 (en) 1998-09-05 1998-09-05 Internal combustion engine with at least two rows of cylinders arranged in a V-shape with respect to one another

Publications (1)

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WO2000014393A1 true WO2000014393A1 (en) 2000-03-16

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DE (2) DE19840658A1 (en)
WO (1) WO2000014393A1 (en)

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DE10052121B4 (en) * 2000-10-19 2016-03-31 Volkswagen Ag Internal combustion engine with at least two engine control units
CN115163647A (en) * 2022-06-17 2022-10-11 潍柴动力股份有限公司 Engine crankshaft structure, engine crank connecting rod mechanism and engine

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FR505555A (en) * 1919-10-29 1920-08-02 Claudio Baradat Aviation engine improvements
US1535084A (en) * 1920-12-30 1925-04-28 Glenn D Angle Manifold arrangement for multiple-cylinder engines
GB287933A (en) * 1927-03-30 1928-10-11 Giustino Cattaneo Improvements in the arrangement of the mixture inlet piping of internal combustion engines
DE3937587A1 (en) * 1989-11-11 1991-05-16 Audi Ag Transverse IC vehicle engine with two cylinder groups - has each cylinder group in V-format, with well in one-piece block between for camshaft- and output drives

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JPS61145306A (en) * 1984-12-20 1986-07-03 Toyota Motor Corp V-6 double overhead camshaft internal-combustion engine
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Patent Citations (5)

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Publication number Priority date Publication date Assignee Title
GB104895A (en) * 1916-03-17 1917-03-19 Sunbeam Motor Car Co Ltd Improvements in Multi-cylinder Internal Combustion Engines.
FR505555A (en) * 1919-10-29 1920-08-02 Claudio Baradat Aviation engine improvements
US1535084A (en) * 1920-12-30 1925-04-28 Glenn D Angle Manifold arrangement for multiple-cylinder engines
GB287933A (en) * 1927-03-30 1928-10-11 Giustino Cattaneo Improvements in the arrangement of the mixture inlet piping of internal combustion engines
DE3937587A1 (en) * 1989-11-11 1991-05-16 Audi Ag Transverse IC vehicle engine with two cylinder groups - has each cylinder group in V-format, with well in one-piece block between for camshaft- and output drives

Also Published As

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EP1112444B1 (en) 2002-11-20
EP1112444A1 (en) 2001-07-04
DE59903491D1 (en) 2003-01-02
DE19840658A1 (en) 2000-03-09

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