EP1041260B1 - Internal combustion engine - Google Patents

Internal combustion engine Download PDF

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Publication number
EP1041260B1
EP1041260B1 EP00103445A EP00103445A EP1041260B1 EP 1041260 B1 EP1041260 B1 EP 1041260B1 EP 00103445 A EP00103445 A EP 00103445A EP 00103445 A EP00103445 A EP 00103445A EP 1041260 B1 EP1041260 B1 EP 1041260B1
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EP
European Patent Office
Prior art keywords
internal combustion
combustion engine
crankcase
pump
pumps
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
Application number
EP00103445A
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German (de)
French (fr)
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EP1041260A2 (en
EP1041260A3 (en
Inventor
Dietmar Dipl.-Ing. Lagies
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Volkswagen AG
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Volkswagen AG
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Publication of EP1041260A3 publication Critical patent/EP1041260A3/en
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Classifications

    • 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
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
    • 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
    • F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
    • F02B67/04—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/02—Arrangements for cooling cylinders or cylinder heads
    • F01P2003/021—Cooling cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/02—Arrangements for cooling cylinders or cylinder heads
    • F01P2003/027—Cooling cylinders and cylinder heads in parallel

Definitions

  • the invention relates to an internal combustion engine according to the preamble of the claim 1.
  • Internal combustion engine of the reciprocating piston engine type are 3 cylinder banks with each 6 cylinders arranged in a row V-shaped to each other in a crankcase arranged.
  • a water pump is provided for cooling the internal combustion engine, which is arranged on an end face of the crankcase and the two outlet channels has, to the corresponding cooling channels to the individual cylinder banks are connected.
  • the second outlet channel of the water pump is connected to corresponding cooling channels the right-hand outer cylinder bank and via a branch a cooling channel to supply the front, pump-near part of the middle Cylinder bank connected.
  • the return or discharge of the cooling water the engine is carried out via external return manifolds.
  • the known internal combustion engine has the disadvantage that the Water pump to supply the unit with cooling water outside the actual size of the crankcase is additionally attached to this and so increases the installation dimensions of the internal combustion engine. Because in use Such internal combustion engines as the engine of a vehicle, in particular a car, however, only a limited installation space is available the well-known internal combustion engines meet the current requirements for modern Internal combustion engines no longer.
  • the invention is therefore based on the object of an internal combustion engine Reciprocating engine design with V-shaped cylinder banks to develop such that the necessary additional units the total space of the motor do not enlarge significantly.
  • the exemplary embodiment includes an internal combustion engine three cylinder banks arranged in a V-shape, each with six cylinders has, designed as water pumps in the V-shaped pumps Intermediate spaces of the cylinder banks can alternatively also be arranged more pumps, e.g. four pumps or only a single pump may be provided. In addition, it is alternatively possible to use other delivery units (e.g. oil pump or similar) for operating materials of the internal combustion engine in combination with the Insert water pumps in the V-shaped spaces.
  • other delivery units e.g. oil pump or similar
  • the two water pumps shown in the embodiment are side by side arranged in two adjacent V-shaped spaces, however, it is also possible to arrange them axially one behind the other or offset from one another accommodate. It is essential that the in the V-shaped spaces used water pumps not or only slightly above the dimension of the crankcase protrude, so that additional space through these units can be avoided and the internal combustion engine in its entirety builds smaller.
  • the pumps are in the exemplary embodiment via a corresponding flange connection attached to the crankcase perpendicular to its axis, it is an alternative but also possible to fix the pumps axially.
  • Another advantage is the direct drive, not described in detail Pumps achieved via a common center drive on the internal combustion engine, this preferably pure gear drive in the middle of the crankcase is arranged in the direction of its longitudinal extent. This will be more advantageous Way by dividing the internal central cylinder bank possible, which creates the necessary space for one such center drive is created.
  • the central pump drive has one Saving space for an additional drive, e.g. a belt drive.
  • the cooling water is supplied to the rear part of the middle cylinder bank facing away from the pumps is now more advantageous Way across the adjacent outer cylinder banks.
  • the external cylinder banks are flowed through and at corresponding The cooling water then flows out of these branches into the rear part of the branches middle cylinder bank.
  • the cooling water channels are between the water pumps and Alllen cylinder banks advantageously integrated into the crankcase, so that on external lines can be dispensed with.
  • the water pumps are preferably constructed in 3 stages, with the respective modified Bucket wheel geometry realized different pressure increase levels during the conveyance become.
  • the exemplary embodiment shows an 18-cylinder engine with three cylinder banks of six each Cylinders in series, the cylinder banks being arranged in a V-shape with respect to one another.
  • This arrangement has the cooling water flow when using two water pumps arranged side by side in adjacent spaces have the advantage that the channel geometry of the water channels are essentially symmetrical can and thus achieve the same cooling conditions.
  • FIG. 1 shows a simplified view of the front side of the internal combustion engine the representation of the arrangement of the water pumps
  • Figure 2 is a plan view of the Crankcase with the representation of the arrangement of the water pumps
  • Figure 3 a Schematic representation of the cooling water circuit of the invention Internal combustion engine.
  • the internal combustion engine of the reciprocating piston engine type shown in simplified form in FIG has a crankcase 1, which in a known manner by a not shown Oil pan is closed down and which three V-shaped to each other Cylinder banks with six cylinders in a row.
  • a crankcase 1 which in a known manner by a not shown Oil pan is closed down and which three V-shaped to each other Cylinder banks with six cylinders in a row.
  • One forms in the front view outer cylinder bank on the left a first cylinder bank 3, a middle, inner one A second cylinder bank 5 and an outer cylinder bank on the right one third cylinder bank 7.
  • the cylinder banks 3,5,7 of the crankcase 1 are by means of corresponding cylinder heads 9 and cylinder head covers 11 placed thereon in a known manner Closed way.
  • the individual cylinder banks 3,5,7 have an angle of preferably 60 ° to them each adjacent cylinder banks, so that in the gusset between two adjacent cylinder banks each result in a V-shaped space.
  • a coolant preferably water pump used
  • one in the first Intermediate space 13 arranged pump a first water pump 17 and one in the second Intermediate space 15 arranged pump forms a second water pump 19.
  • These water pumps 17, 19 are designed as three-stage pumps and by means of a flange, not shown, perpendicular to its axis on a corresponding Receiving surface of the crankcase 1 screwed tight, being within the Mounting flange, the delivery opening of the water pumps 17, 19 is arranged, which in a corresponding inlet space opens into the crankcase 1.
  • the feeder Fresh water takes place here, as can also be seen from the arrows in FIG axial inlet opening on the end faces.
  • the pumps 17, 19 do not protrude beyond the Installation space of the crankcase 1 also.
  • the plan view of the crankcase 1 shown in FIG. 2 shows a central one Recess 21 in the crankcase 1 through which the internal second cylinder bank 5 is divided between the third and fourth cylinders, so that a front, the Water pumps 17, 19 adjacent part 5A of the second cylinder bank 5 and a rear, the pumps 17, 19 further part 5B of the second cylinder bank 5 is formed.
  • central recess 21 is a control drive, not shown Internal combustion engine arranged, which advantageously also the common drive of the water pumps 17, 19 arranged adjacent to one another via a drives the corresponding gear train rotating.
  • the first water pump 17 conveys from a cooler 23 via an inlet line 22 cold water via a branch in the front part 5A of the central cylinder bank 5, that flows around the three cylinders on the left and flows out into a return line 24. Another part of the cooling water delivered by the first pump 17 flows into the first Cylinder bank 3, with part of the cooling water there via the three cylinders on the left in the return line 24 flows out and another part to the right three cylinders flows within the first cylinder bank 3.
  • This cooling flow divides again, whereby a part flows into a pump-remote connection of the return line 24 and another Partial cooling water flow via a connecting line 25 in the rear part 5B remote from the pump flows into the middle cylinder bank 5 and cools the right-hand three cylinders there flows around, before it also in a pump remote connection of the return line 24th flows.
  • the return line 24 opens with the interposition of a thermostat 26 in the Cooler 23 or after a corresponding switching of the thermostat when cold Internal combustion engine again directly into the feed line 22.
  • the second water pump 19 analogously from the supply line 22 cold water in the pump-near front part 5A of the middle cylinder bank 5, where this, the left three cylinders flowing out again in the return line 24.
  • the second water pump 19 also pumps fresh water into the third cylinder bank 7, where a Partial flow after flowing along the three cylinders on the left also into the Return line 24 exits.
  • Another part of the cooling water flows inside the third cylinder bank 7 to the right, flows around the right-hand three cylinders and occurs a remote connection to the pump in the return line 24.
  • a partial flow of right-hand flow of cooling water also enters via a connecting line 25 the rear, pump-remote part 5B of the central cylinder bank 5 and flows there along the three cylinders on the right via a connection remote from the pump into the return line 24 from.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

The engine has three cylinder banks (3, 5, 7) arranged in V formation relative to each other, fitted to a common crankcase (1). there is at least one water pump (17, 19) fitted on the crankcase. The pumps are fitted directly to the crankcase in the V-shaped cavities between the cylinder banks.

Description

Die Erfindung betrifft eine Brennkraftmaschine gemäß dem Oberbegriff des Patentanspruchs 1. Bei einer derartigen aus der Schrift GB 337 475 bekannten Brennkraftmaschine der Hubkolbenmotorenbauart sind 3 Zylinderbänke mit jeweils 6 in Reihe angeordneten Zylindern V-förmig zueinander in einem Kurbelgehäuse angeordnet.The invention relates to an internal combustion engine according to the preamble of the claim 1. In such a known from the document GB 337 475 Internal combustion engine of the reciprocating piston engine type are 3 cylinder banks with each 6 cylinders arranged in a row V-shaped to each other in a crankcase arranged.

Zur Kühlung der Brennkraftmaschine ist dabei eine Wasserpumpe vorgesehen, die an einer Stirnseite des Kurbelgehäuses angeordnet ist und die zwei Auslaßkanäle aufweist, an die entsprechende Kühlkanäle zu den einzelnen Zylinderbänken angeschlossen sind. Dabei ist ein erster Auslaßkanal der Wasserpumpe mit Kühlkanälen zur linksliegenden äußeren Zylinderbank und über eine Verzweigung mit einem Kühlkanal zum pumpenfernen hinteren Teil der mittleren Zylinderbank verbunden. Der zweite Auslaßkanal der Wasserpumpe ist an entsprechende Kühlkanäle der rechtsliegenden äußeren Zylinderbank und über eine Verzweigung an einen Kühlkanal zur Versorgung des vorderen, pumpennahen Teils der mittleren Zylinderbank angeschlossen. Die Rück- bzw. Abführung des Kühlwassers aus dem Motor erfolgt dabei über externe Rücklaufsammelleitungen.A water pump is provided for cooling the internal combustion engine, which is arranged on an end face of the crankcase and the two outlet channels has, to the corresponding cooling channels to the individual cylinder banks are connected. There is a first outlet channel of the water pump with cooling channels to the left outer cylinder bank and via a branch with a cooling channel to the rear of the central cylinder bank remote from the pump. The second outlet channel of the water pump is connected to corresponding cooling channels the right-hand outer cylinder bank and via a branch a cooling channel to supply the front, pump-near part of the middle Cylinder bank connected. The return or discharge of the cooling water the engine is carried out via external return manifolds.

Dabei weist die bekannte Brennkraftmaschine jedoch den Nachteil auf, daß die Wasserpumpe zur Versorgung des Aggregates mit Kühlwasser außerhalb des eigentlichen Baumaßes des Kurbelgehäuses zusätzlich an diesem befestigt ist und so die Einbaumaße der Brennkraftmaschine vergrößert. Da bei der Verwendung derartiger Brennkraftmaschinen als Triebwerk eines Fahrzeuges, insbesondere eines PKW jedoch nur ein begrenzter Einbauraum zur Verfügung steht, genügt die bekannte Brennkraftmaschinen den aktuellen Erfordernissen an moderne Brennkraftmaschinen nicht mehr.However, the known internal combustion engine has the disadvantage that the Water pump to supply the unit with cooling water outside the actual size of the crankcase is additionally attached to this and so increases the installation dimensions of the internal combustion engine. Because in use Such internal combustion engines as the engine of a vehicle, in particular a car, however, only a limited installation space is available the well-known internal combustion engines meet the current requirements for modern Internal combustion engines no longer.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Brennkraftmaschine der Hubkolbenmotorenbauart mit V-förmig zueinander angeordneten Zylinderbänken derart weiterzubilden, daß notwendige Zusatzuaggregate den Gesamtbauraum des Motors nicht wesentlich vergrößern.The invention is therefore based on the object of an internal combustion engine Reciprocating engine design with V-shaped cylinder banks to develop such that the necessary additional units the total space of the motor do not enlarge significantly.

Diese Aufgabe wird von einer Brennkraftmaschine der o.g. Art mit den in Anspruch 1 gekennzeichneten Merkmalen gelöst.This task is performed by an internal combustion engine of the abovementioned. Kind with the claim 1 marked features solved.

Vorteile der ErfindungAdvantages of the invention

Die erfindungsgemäße Brennkraftmaschine der o.g. Art mit den kennzeichnenden Merkmalen des Patentanspruchs 1 hat gegenüber den bekannten Lösungen den Vorteil, daß die Pumpen für die Kühlflüssigkeit in den vorhandenen Bauraum an der Brennkraftmaschine integriert sind und so keinen zusätzlichen Platzbedarf verursachen.The internal combustion engine according to the invention of the above. Kind with the distinctive Features of claim 1 has compared to the known solutions Advantage that the pumps for the coolant in the existing space the internal combustion engine are integrated and so no additional space is required cause.

Dies wird dabei in vorteilhafter Weise durch die Anordnung der Pumpen in den zwischen den Zylinderbänken gebildeten V-förmigen Zwischenräumen am Kurbelgehäuse erreicht, wobei die Pumpen direkt am Kurbelgehäuse befestigt sind, was zudem kurze Förderwege zur Folge hat.This is advantageously done by the arrangement of the pumps in the V-shaped spaces on the crankcase formed between the cylinder banks reached, with the pumps attached directly to the crankcase, what also results in short funding routes.

Dabei sind im Ausführungsbeispiel, das beispielhaft eine Brennkraftmaschine mit drei V-förmig zueinander angeordneten Zylinderbänken mit jeweils sechs Zylindern aufweist, zwei als Wasserpumpen ausgebildete Pumpen in den V-förmigen Zwischenräumen der Zylinderbänke angeordnet es können jedoch alternativ auch mehr Pumpen, z.B. vier Pumpen oder nur eine einzige Pumpe vorgesehen sein. Darüberhinaus ist es alternativ auch möglich andere Förderaggregate (z.B. Ölpumpe o.ä.) für Betriebsstoffe der Brennkraftmaschine in Kombination mit den Wasserpumpen in die V-förmigen Zwischenräume einzusetzen.The exemplary embodiment includes an internal combustion engine three cylinder banks arranged in a V-shape, each with six cylinders has, designed as water pumps in the V-shaped pumps Intermediate spaces of the cylinder banks can alternatively also be arranged more pumps, e.g. four pumps or only a single pump may be provided. In addition, it is alternatively possible to use other delivery units (e.g. oil pump or similar) for operating materials of the internal combustion engine in combination with the Insert water pumps in the V-shaped spaces.

Die im Ausführungsbeispiel dargestellten zwei Wasserpumpen sind dabei nebeneinanderliegend in zwei benachbarten V-förmigen Zwischenräumen angeordnet, es ist jedoch auch möglich, diese axial hintereinanderliegend oder versetzt zueinander unterzubringen. Wesentlich ist dabei, daß die in die V-förmigen Zwischenräume eingesetzten Wasserpumpen nicht oder nur unwesentlich über das Maß des Kurbelgehäuses hinausragen, so daß zusätzlicher Bauraum durch diese Aggregate vermieden werden kann und die Brennkraftmaschine in ihrer Gesamtheit kleiner baut. The two water pumps shown in the embodiment are side by side arranged in two adjacent V-shaped spaces, however, it is also possible to arrange them axially one behind the other or offset from one another accommodate. It is essential that the in the V-shaped spaces used water pumps not or only slightly above the dimension of the crankcase protrude, so that additional space through these units can be avoided and the internal combustion engine in its entirety builds smaller.

Die Pumpen sind dabei im Ausführungsbeispiel über eine entsprechende Flanschverbindung senkrecht zu ihrer Achse am Kurbelgehäuse befestigt, es ist alternativ jedoch auch möglich die Pumpen axial zu befestigen.The pumps are in the exemplary embodiment via a corresponding flange connection attached to the crankcase perpendicular to its axis, it is an alternative but also possible to fix the pumps axially.

Ein weiterer Vorteil wird durch den nicht näher beschriebenen direkten Antrieb der Pumpen über einen gemeinsamen Mittenantrieb an der Brennkraftmaschine erreicht, wobei dieser vorzugsweise reine Zahnradantrieb in der Mitte des Kurbelgehäuses in Richtung dessen Längserstreckung angeordnet ist. Dies wird in vorteilhafter Weise durch eine Teilung der innenliegenden mittleren Zylinderbank möglich, wodurch der notwendige Bauraum für einen derartigen Mittenantrieb geschaffen wird. Der mittige Pumpenantrieb hat dabei neben einer Einsparung von Bauraum für einen zusätzlichen Antrieb, z.B. einen Riementrieb den weiteren Vorteil, daß die Pumpen bei vorstehend beschriebener freien Auswahl der Anordnung in den V-förmigen Zwischenräumen direkt über einen gemeinsamen Antrieb angetrieben werden können.Another advantage is the direct drive, not described in detail Pumps achieved via a common center drive on the internal combustion engine, this preferably pure gear drive in the middle of the crankcase is arranged in the direction of its longitudinal extent. This will be more advantageous Way by dividing the internal central cylinder bank possible, which creates the necessary space for one such center drive is created. The central pump drive has one Saving space for an additional drive, e.g. a belt drive Another advantage that the pumps with the free selection of the above described Arrangement in the V-shaped spaces directly via a common drive can be driven.

Da aufgrund der geteilten Bauform der mittleren Zylinderbank eine direkte Durchströmung von Kühlwasser durch diese nicht mehr möglich ist, erfolgt die Kühlwasserzufuhr zum hinteren, den Pumpen abgewandten Teil der mittleren Zylinderbank nunmehr in vorteilhafter Weise über die benachbarten äußeren Zylinderbänke. Dazu strömt das von den Pumpen geförderte Kühlwasser über entsprechende Verzweigungen jeweils in den angrenzenden Teil der mittleren, innenliegenden Zylinderbank und in die jeweilige außenliegende Zylinderbank. Die außenliegenden Zylinderbänke werden durchströmt und an entsprechenden Verzweigungen strömt dann das Kühlwasser aus diesen über in den hinteren Teil der mittleren Zylinderbank. Dabei sind die Kühlwasserkanäle zwischen den Wasserpumpen und alllen Zylinderbänken in vorteilhafter Weise in das Kurbelgehäuse integriert, so daß auf externe Leitungen verzichtet werden kann.Because of the split design of the middle cylinder bank, there is a direct flow of cooling water through this is no longer possible, the cooling water is supplied to the rear part of the middle cylinder bank facing away from the pumps is now more advantageous Way across the adjacent outer cylinder banks. This flows from the pumps pumped cooling water via appropriate branches in each case in the adjacent part the middle, inner cylinder bank and into the respective outer cylinder bank. The external cylinder banks are flowed through and at corresponding The cooling water then flows out of these branches into the rear part of the branches middle cylinder bank. The cooling water channels are between the water pumps and Alllen cylinder banks advantageously integrated into the crankcase, so that on external lines can be dispensed with.

Aufgrund der hohen Leistungsanforderungen an die Förderaggregate der Kühlflüssigkeit sind die Wasserpumpen vorzugsweise 3-stufig aufgebaut, wobei über die jeweils geänderte Schaufelradgeometrie verschiedene Druckerhöhungsstufen während der Förderung realisiert werden. Darüber hinaus ist es mit einem entsprechenden Getriebe auch möglich, die Antriebsdrehzahl und somit die Förderleistung der Pumpe variabel zu regeln.Due to the high performance requirements for the delivery units of the coolant the water pumps are preferably constructed in 3 stages, with the respective modified Bucket wheel geometry realized different pressure increase levels during the conveyance become. In addition, it is also possible with an appropriate gearbox Variable drive speed and thus the delivery rate of the pump.

Das Ausführungsbeispiel zeigt einen 18-Zylindermotor mit drei Zylinderbänken zu je sechs Zylindern in Reihe, wobei die Zylinderbänke V-förmig zueinander angeordnet sind.The exemplary embodiment shows an 18-cylinder engine with three cylinder banks of six each Cylinders in series, the cylinder banks being arranged in a V-shape with respect to one another.

Diese Anordnung hat dabei hinsichtlich der Kühlwasserführung bei der Verwendung von zwei nebeneinander in benachbarten Zwischenräumen angeordneten Wasserpumpen den Vorteil, daß die Kanalgeometrie der Wasserführungen im wesentlichen symmetrisch ausgebildet sein kann und sich somit gleiche Kühlverhältnisse erreichen lassen.This arrangement has the cooling water flow when using two water pumps arranged side by side in adjacent spaces have the advantage that the channel geometry of the water channels are essentially symmetrical can and thus achieve the same cooling conditions.

Es ist jedoch alternativ auch möglich, die beschriebene Anordnung von Pumpen in den V-förmigen Zwischenräumen zwischen den Zylinderbänken an Brennkraftmaschinen mit nur zwei V-förmig zueinander angeordneten Zylinderbänken oder an Brennkraftmaschinen mit mehr als drei Zylinderbänken vorzusehen. However, it is alternatively also possible to arrange the pumps in the V-shaped arrangement as described Gaps between the cylinder banks on internal combustion engines with only two V-shaped cylinder banks arranged with each other or on internal combustion engines to provide more than three cylinder banks.

Weitere Vorteile und vorteilhafte Ausgestaltungen des Gegenstandes der Erfindung sind der Zeichnung, der Beschreibung und den Patentansprüchen entnehmbar.Further advantages and advantageous embodiments of the subject matter of the invention are Drawing, the description and the claims can be found.

Zeichnungdrawing

Ein Ausführungsbeispiel der erfindungsgemäßen Brennkraftmaschine ist in der Zeichnung dargestellt und wird in der folgenden Beschreibung näher erläutert.An embodiment of the internal combustion engine according to the invention is in the drawing shown and is explained in more detail in the following description.

Es zeigen die Figur 1 eine vereinfachte Ansicht auf die Stirnseite der Brennkraftmaschine mit der Darstellung der Anordnung der Wasserpumpen, die Figur 2 eine Draufsicht auf das Kurbelgehäuse mit der Darstellung der Anordnung der Wasserpumpen und die Figur 3 eine Schema-Darstellung des Kühlwasserkreislaufes der erfindungsgemäßen Brennkraftmaschine.1 shows a simplified view of the front side of the internal combustion engine the representation of the arrangement of the water pumps, Figure 2 is a plan view of the Crankcase with the representation of the arrangement of the water pumps and Figure 3 a Schematic representation of the cooling water circuit of the invention Internal combustion engine.

Beschreibung des AusführungsbeispielsDescription of the embodiment

Die in der Figur 1 vereinfacht dargestellte Brennkraftmaschine der Hubkolbenmotorenbauart weist ein Kurbelgehäuse 1 auf, das in bekannter Weise durch eine nicht näher dargestellte Ölwanne nach unten verschlossen ist und welche drei V-förmig zueinander angeordnete Zylinderbänke mit jeweils sechs Zylindern in Reihe trägt. Dabei bildet eine in der Stirnansicht links liegende äußere Zylinderbank eine erste Zylinderbank 3, eine mittlere, innenliegende Zylinderbank eine zweite Zylinderbank 5 und eine rechts liegende äußere Zylinderbank eine dritte Zylinderbank 7. Die Zylinderbänke 3,5,7 des Kurbelgehäuses 1 sind mittels entsprechender Zylinderköpfe 9 und darauf aufgesetzter Zylinderkopfhauben 11 in bekannter Weise verschlossen.The internal combustion engine of the reciprocating piston engine type shown in simplified form in FIG has a crankcase 1, which in a known manner by a not shown Oil pan is closed down and which three V-shaped to each other Cylinder banks with six cylinders in a row. One forms in the front view outer cylinder bank on the left a first cylinder bank 3, a middle, inner one A second cylinder bank 5 and an outer cylinder bank on the right one third cylinder bank 7. The cylinder banks 3,5,7 of the crankcase 1 are by means of corresponding cylinder heads 9 and cylinder head covers 11 placed thereon in a known manner Closed way.

Die einzelnen Zylinderbänke 3,5,7 weisen einen Winkel von vorzugsweise 60° zu den ihnen jeweils benachbarten Zylinderbänken auf, so daß sich im Zwickel zwischen zwei benachbarten Zylinderbänken jeweils ein V-förmiger Zwischenraum ergibt. Dabei bildet der Bereich zwischen der ersten und zweiten Zylinderbank 3,5 einen ersten Zwischenraum 13 und der Bereich zwischen der zweiten und dritten Zylinderbank 5,7 einen zweiten Zwischenraum 15. The individual cylinder banks 3,5,7 have an angle of preferably 60 ° to them each adjacent cylinder banks, so that in the gusset between two adjacent cylinder banks each result in a V-shaped space. The forms Region between the first and second cylinder banks 3, 5 a first intermediate space 13 and the area between the second and third cylinder banks 5, 7 a second Space 15.

In diese V-förmigen Zwischenräume 13 und 15 zwischen den Zylinderbänken 3,5,7 ist jeweils eine ein Kühlmittel, vorzugsweie Wasser fördernde Pumpe eingesetzt, wobei eine im ersten Zwischenraum 13 angeordnete Pumpe eine erste Wasserpumpe 17 und eine im zweiten Zwischenraum 15 angeordnete Pumpe eine zweite Wasserpumpe 19 bildet.In each of these V-shaped spaces 13 and 15 between the cylinder banks 3,5,7 a coolant, preferably water pump used, one in the first Intermediate space 13 arranged pump a first water pump 17 and one in the second Intermediate space 15 arranged pump forms a second water pump 19.

Diese Wasserpumpen 17, 19 sind dabei als dreistufige Pumpen ausgebildet und mittels eines nicht näher dargestellten Flansches senkrecht zu ihrer Achse an einer entsprechenden Aufnahmefläches des Kurbelgehäuses 1 dichtend verschraubt, wobei innerhalb des Befestigungsflansches die Förderöffnung der Wasserpumpen 17, 19 angeordnet ist, die in einen entsprechenden Zulaufraum innerhalb des Kurbelgehäuses 1 mündet. Die Zuführung von Frischwasser erfolgt dabei, wie auch den Pfeilen in der Figur 2 entnehmbar über eine axiale Eintrittsöffnung an den Stirnseiten. Die Pumpen 17, 19 ragen dabei nicht über den Bauraum des Kurbelgehäuses 1 hinaus.These water pumps 17, 19 are designed as three-stage pumps and by means of a flange, not shown, perpendicular to its axis on a corresponding Receiving surface of the crankcase 1 screwed tight, being within the Mounting flange, the delivery opening of the water pumps 17, 19 is arranged, which in a corresponding inlet space opens into the crankcase 1. The feeder Fresh water takes place here, as can also be seen from the arrows in FIG axial inlet opening on the end faces. The pumps 17, 19 do not protrude beyond the Installation space of the crankcase 1 also.

Die in der Figur 2 dargestellte Draufsicht auf das Kurbelgehäuse 1 zeigt eine mittige Ausnehmung 21 im Kurbelgehäuse 1, durch die die innenliegende zweite Zylinderbank 5 zwischen dem dritten und vierten Zylinder geteilt ist, so daß ein vorderer, den Wasserpumpen 17,19 benachbarter Teil 5A der zweiten Zylinderbank 5 und ein hintenliegender, den Pumpen 17, 19 ferner Teil 5B der zweiten Zylinderbank 5 gebildet ist.The plan view of the crankcase 1 shown in FIG. 2 shows a central one Recess 21 in the crankcase 1 through which the internal second cylinder bank 5 is divided between the third and fourth cylinders, so that a front, the Water pumps 17, 19 adjacent part 5A of the second cylinder bank 5 and a rear, the pumps 17, 19 further part 5B of the second cylinder bank 5 is formed.

In dieser mittigen Ausnehmung 21 ist ein nicht näher dargestellter Steuertrieb der Brennkraftmaschine angeordnet, der in vorteilhafter Weise auch den gemeinsamen Antrieb der nebeneinander benachbart angeordneten Wasserpumpen 17, 19 über einen entsprechenden Rädertrieb rotierend antreibt.In this central recess 21 is a control drive, not shown Internal combustion engine arranged, which advantageously also the common drive of the water pumps 17, 19 arranged adjacent to one another via a drives the corresponding gear train rotating.

Der vorteilhafte Kühlwasserkreislauf der in den Figuren 1 und 2 gezeigten Brennkraftmaschine mit geteilter innenliegender Zylinderbank 5 wird anhand des in der Figur 3 dargestellten Schemas erläutert.The advantageous cooling water circuit shown in Figures 1 and 2 Internal combustion engine with a split internal cylinder bank 5 is based on the in the figure 3 illustrated schemes explained.

Dabei fördert die erste Wasserpumpe 17 über eine Zulaufleitung 22 aus einem Kühler 23 kaltes Wasser über eine Verzweigung in den vorderen Teil 5A der mittleren Zylinderbank 5, das dort die links liegenden drei Zylinder umströmt und in eine Rücklaufleitung 24 abströmt. Ein weiterer Teil des von der ersten Pumpe 17 geförderten Kühlwassers strömt in die erste Zylinderbank 3, wobei dort ein Teil des Kühlwassers über die linksliegenden drei Zylinder in die Rücklaufleitung 24 abströmt und ein weiterer Teil zu den rechtsliegenden drei Zylindern innerhalb der ersten Zylinderbank 3 strömt. Dabei teilt sich dieser Kühlstrom erneut, wobei ein Teil in einen pumpenfernen Anschluß der Rücklaufleitung 24 abströmt und ein weiterer Kühlwasserteilstrom über eine Verbindungsleitung 25 in den hinteren, pumpenfernen Teil 5B der mittleren Zylinderbank 5 einströmt und dort die rechtsliegenden drei Zylinder kühlend umströmt, bevor er ebenfalls in einem pumpenfernen Anschluß der Rücklaufleitung 24 einströmt.The first water pump 17 conveys from a cooler 23 via an inlet line 22 cold water via a branch in the front part 5A of the central cylinder bank 5, that flows around the three cylinders on the left and flows out into a return line 24. Another part of the cooling water delivered by the first pump 17 flows into the first Cylinder bank 3, with part of the cooling water there via the three cylinders on the left in the return line 24 flows out and another part to the right three cylinders flows within the first cylinder bank 3. This cooling flow divides again, whereby a part flows into a pump-remote connection of the return line 24 and another Partial cooling water flow via a connecting line 25 in the rear part 5B remote from the pump flows into the middle cylinder bank 5 and cools the right-hand three cylinders there flows around, before it also in a pump remote connection of the return line 24th flows.

Die Rücklaufleitung 24 mündet dabei unter Zwischenschaltung eines Thermostats 26 in den Kühler 23 oder nach einem entsprechenden Umschalten des Thermostats bei kalter Brennkraftmaschine erneut direkt in die Zulaufleitung 22.The return line 24 opens with the interposition of a thermostat 26 in the Cooler 23 or after a corresponding switching of the thermostat when cold Internal combustion engine again directly into the feed line 22.

Aufgrund der vorteilhaften Symmetrie der erfindungsgemäßen Brennkraftmaschine fördert die zweite Wasserpumpe 19 analog dazu aus der Zulaufleitung 22 kaltes Wasser in den pumpennahen vorderen Teil 5A der mittleren Zylinderbank 5, wo dieses, die linksliegenden drei Zylinder umströmend wieder in die Rücklaufleitung 24 austritt. Über eine Verzweigung fördert die zweite Wasserpumpe 19 zudem Frischwasser in die dritte Zylinderbank 7, wo ein Teilstrom nach Entlangströmen an den linksliegenden drei Zylindern ebenfalls wieder in die Rücklaufleitung 24 austritt. Ein weiterer Teilstrom des Kühlwassers strömt innerhalb der dritten Zylinderbank 7 nach rechts, umströmt die rechtsliegenden drei Zylinder und tritt an einem pumpenfernen Anschluß in die Rücklaufleitung 24 ein. Ein Teilstrom der rechtsströmenden Kühlwassermenge gelangt über eine Verbindungsleitung 25 ebenfalls in den hinteren, pumpenfernen Teil 5B der mittleren Zylinderbank 5 und strömt dort entlang der rechtsliegenden drei Zylinder über einen pumpenfernen Anschluß in die Rücklaufleitung 24 ab.Due to the advantageous symmetry of the internal combustion engine according to the invention promotes the second water pump 19 analogously from the supply line 22 cold water in the pump-near front part 5A of the middle cylinder bank 5, where this, the left three cylinders flowing out again in the return line 24. Over a branch the second water pump 19 also pumps fresh water into the third cylinder bank 7, where a Partial flow after flowing along the three cylinders on the left also into the Return line 24 exits. Another part of the cooling water flows inside the third cylinder bank 7 to the right, flows around the right-hand three cylinders and occurs a remote connection to the pump in the return line 24. A partial flow of right-hand flow of cooling water also enters via a connecting line 25 the rear, pump-remote part 5B of the central cylinder bank 5 and flows there along the three cylinders on the right via a connection remote from the pump into the return line 24 from.

Auf diese Weise ist es trotz geteilter mittlerer Zylinderbank 5 in einfacher Weise möglich, den pumpenfernen Teil der mittleren Zylinderbank 5 ausreichend zu kühlen. Um dabei einen gleichmäßigen Kühlmitteldurchfluß und somit eine gleichmäßige Kühlwirkung an allen Zylindern zu erreichen ist es zudem möglich die Kühlwasserkanäle im Kurbelgehäuse je nach Bedarf unterschiedlich zu dimensionieren.In this way it is possible in a simple manner, despite the divided central cylinder bank 5 to cool sufficiently away from the pump part of the central cylinder bank 5. To do one uniform coolant flow and thus a uniform cooling effect on everyone It is also possible to reach cylinders, the cooling water channels in the crankcase to be dimensioned differently as required.

Claims (8)

  1. Internal combustion engine of the reciprocating-piston engine type, having at least two cylinder banks (3, 5, 7) which are arranged in a V-shape with respect to one another and are arranged on a common crankcase (1), and having at least one pump (17, 19) which conveys an operating medium of the internal combustion engine and is arranged on the crankcase (1), characterized in that at least one pump (17, 19) is provided which is arranged in a V-shaped intermediate space (13, 15) between the cylinder banks (3, 5, 7) and is fastened directly to the crankcase (1) there, and in that the operating medium which is conveyed is cooling water.
  2. Internal combustion engine according to Claim 1, characterized in that the water pumps (17, 19) are arranged next to one another in each case in one of the V-shaped intermediate spaces (13, 15).
  3. Internal combustion engine according to Claim 1, characterized in that the pump (17, 19) which is installed in the V-shaped intermediate space (13, 15) between the cylinder banks (3, 5, 7) is contained completely within the external dimensions of the crankcase (1).
  4. Internal combustion engine according to Claim 1, characterized in that the pump (17, 19) which conveys water is of multi-stage, preferably three-stage, design.
  5. Internal combustion engine according to Claim 1, characterized in that the conveying medium of the pump (17, 19) is supplied at one end and is fed into an appropriate opening on the crankcase (1) via a conveying opening which lies perpendicular to the pump axis.
  6. Internal combustion engine according to Claim 1, characterized in that the pumps (17, 19) which are arranged in the V-shaped intermediate spaces (13, 15) are driven rotationally by a drive which is arranged centrally in the crankcase (1).
  7. Internal combustion engine according to Claim 6, characterized in that all the pumps (17, 19) in the V-shaped intermediate spaces (13, 15) are driven by a common drive.
  8. Internal combustion engine according to Claim 1, characterized in that three cylinder banks (3, 5, 7) which are each arranged in a V-shape relative to one another are each provided with six cylinders.
EP00103445A 1999-03-05 2000-02-28 Internal combustion engine Expired - Lifetime EP1041260B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19909619 1999-03-05
DE19909619A DE19909619A1 (en) 1999-03-05 1999-03-05 Internal combustion engine with three banks of cylinders, with pump in V-shaped cavities between cylinder banks, fixed directly to crankcase

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EP1041260A2 EP1041260A2 (en) 2000-10-04
EP1041260A3 EP1041260A3 (en) 2001-11-14
EP1041260B1 true EP1041260B1 (en) 2004-11-24

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AT (1) ATE283421T1 (en)
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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10052121B4 (en) * 2000-10-19 2016-03-31 Volkswagen Ag Internal combustion engine with at least two engine control units
DE102007021237A1 (en) * 2007-05-07 2008-11-13 Bayerische Motoren Werke Aktiengesellschaft Internal combustion engine with several lubricant-supplied cylinder heads and method for controlling a pump of an internal combustion engine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1407336A (en) * 1918-07-15 1922-02-21 Harvey J Sallee Internal-combustion engine
GB151534A (en) * 1920-03-02 1920-09-30 Bernard Robert Bellanger Improvements in internal combustion engines
GB337475A (en) * 1929-08-06 1930-11-06 Giustino Cattaneo Improvement in the water-cooling system for internal combustion engines with w-arranged cylinders
US4054108A (en) * 1976-08-02 1977-10-18 General Motors Corporation Internal combustion engine
DE4032590A1 (en) * 1990-10-13 1992-04-16 Porsche Ag PISTON PISTON ENGINE WITH TWO V-SHAPED CYLINDER ROWS

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EP1041260A2 (en) 2000-10-04
DE19909619A1 (en) 2000-09-07
EP1041260A3 (en) 2001-11-14
ATE283421T1 (en) 2004-12-15
DE50008718D1 (en) 2004-12-30

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