EP0784150A1 - Cylinder block of a multi-cylinder internal combustion engine - Google Patents

Cylinder block of a multi-cylinder internal combustion engine Download PDF

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Publication number
EP0784150A1
EP0784150A1 EP96118314A EP96118314A EP0784150A1 EP 0784150 A1 EP0784150 A1 EP 0784150A1 EP 96118314 A EP96118314 A EP 96118314A EP 96118314 A EP96118314 A EP 96118314A EP 0784150 A1 EP0784150 A1 EP 0784150A1
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EP
European Patent Office
Prior art keywords
cylinder
cooling water
water jacket
cylinder crankcase
water tank
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP96118314A
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German (de)
French (fr)
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EP0784150B1 (en
Inventor
Frank Berger
Kurt Moll
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Daimler Benz AG
Original Assignee
Daimler Benz AG
Mercedes Benz AG
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Application filed by Daimler Benz AG, Mercedes Benz AG filed Critical Daimler Benz AG
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Classifications

    • 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
    • F02F1/108—Siamese-type cylinders, i.e. cylinders cast together
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
    • F01M5/002—Cooling
    • 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
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/0002—Cylinder arrangements
    • F02F7/0007—Crankcases of engines with cylinders in line
    • 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
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/08—Arrangements of lubricant coolers
    • 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
    • F02B2075/1804—Number of cylinders
    • F02B2075/1816—Number of cylinders four

Definitions

  • the invention relates to a cylinder crankcase of a multi-cylinder internal combustion engine according to the preamble of claim 1.
  • a cylinder crankcase of a multi-cylinder internal combustion engine of the generic type is already known from DE 40 29 408 A1, the cylinder walls of the cylinder crankcase being surrounded by a cooling water jacket extending in the longitudinal direction of the cylinder crankcase, and the cooling water jacket being formed by a cooling water jacket wall spaced from the cylinder walls. Furthermore, an oil cooler of a lubrication circuit of the internal combustion engine is located on the side of the cylinder crankcase, the oil cooler being arranged in an oil cooler housing flanged to the cylinder crankcase.
  • the invention has for its object to construct a generic cylinder crankcase structurally as compact as possible, while at the same time the best possible integration of the water jacket surrounding the oil cooler can be achieved in the cooling water circuit of the internal combustion engine.
  • An advantage of the cylinder crankcase according to the invention is that it has a very compact construction due to the laterally cast-on water tank. At the same time, a good integration of the water jacket surrounding the oil cooler into the cooling water circuit of the internal combustion engine is achieved.
  • the integration of the water jacket surrounding the oil cooler into the cooling water circuit of the internal combustion engine is further improved by the cooling water jacket running essentially along the entire cylinder height by virtue of the fact that the flow around the cylinder in this area is almost undisturbed and is thus kept fully functional.
  • the cooling water flow can be influenced in the region of the section of the cooling water jacket wall delimiting the water tank.
  • An advantage of the embodiment according to the invention lies in the further improved cooling effect, because the arrangement of the cylinders creates heat build-up between adjacent cylinder walls due to the poorer heat dissipation, which can lead to undesirable temperature peaks in the adjacent cylinder walls. Due to the cooling water channels arranged between the adjacent cylinder walls, a more uniform cooling and thus a more uniform thermal expansion of the individual cylinders is achieved.
  • the embodiment of the invention according to claim 5 represents a preferred construction of the cylinder crankcase.
  • the screw pipes formed on the cooling water jacket walls make it simple and inexpensive to produce in large numbers producible screw connection of the cylinder head realized.
  • An advantage of the embodiment of the invention according to claim 10 is that the one-piece total water core, which comprises the volumes of water tank, cooling water jacket and cooling water channels filled by cooling water, in the manufacture of the cylinder head (usually made of die-cast aluminum) of these total water core by a single one-piece Casting core can be represented, which can be produced easily and inexpensively, for example using the croning mold mask process in large numbers.
  • Fig. 1 shows a cylinder crankcase 1 of a multi-cylinder internal combustion engine, not shown, the cylinder 2-5 are formed by cylinder walls 2'-5 ', which are surrounded by a cooling water jacket 7 which extends around their outer periphery and is formed by at least one cooling water jacket wall 10 and the cylinder walls 2'-5'.
  • An oil cooler 8 is arranged on the side of the cylinder crankcase 1 and is integrated in a water box 9 cast on the side of the cylinder crankcase 1.
  • the oil cooler 8 is part of a lubrication oil circuit of the internal combustion engine which is known in principle and is not shown in detail.
  • receiving bores 12-15 for plug-in pumps are arranged, each in extension of the associated cylinder transverse axis 2a-5a, the pump tappet of which is provided by cams on one side in the cylinder crankcase 1 in bearings 16 (see FIG. 2 and 3) supported camshaft.
  • two holes 18, 18'-21, 21 ' are arranged at an angle to the motor vertical axis, which are used to carry out bumpers, not shown.
  • the bumpers are at one end in a non-positive connection with cams of said camshaft and are connected at their other end with rocker arms of intake and exhaust valves mounted in the cylinder head in a manner known in principle.
  • the cooling water jacket 7 formed by the outer circumference of the cylinder walls 2'-5 'and the cooling water jacket wall 10 is spaced from the cylinder walls 2'-5' in the direction of the cylinder transverse axes 2a-5a and runs along the vertical axes 2b-5b of the cylinders 2-5 and in the engine longitudinal direction.
  • a section 22 of the cooling water jacket wall 10 simultaneously forms a cylinder-side boundary of the water tank 9, the cooling water jacket 7 running essentially continuously in said section 22.
  • openings 23 for the fluid connection of the cooling water jacket 7 and the water tank 9 are arranged.
  • stiffeners in the form of screw pipes 29 for screw connection of a cylinder head are formed (see FIGS. 2 and 3).
  • a special feature of the cylinder crankcase 1 according to the invention is that when it is produced in the aluminum die casting process, the volumes of the cooling water jacket 7, the water tank 9 and the cooling water channels 24-26 filled with cooling water can be represented by a uniform total water core, which is, for example, in one piece in the croning form mask process Casting core can be produced.
  • a water pump forcibly circulates the cooling water in the cooling water circuit, the cooling water conveyed by the water pump entering the cylinder crankcase 1 at an end face 30 of the cylinder crankcase 1 via a first inlet opening 31 assigned to the water tank 9 and a second inlet opening 32 assigned to the cooling water jacket 7 .
  • the main flow directions of the cooling water flow in the cooling water jacket 7 and in the water tank 9 are essentially the same direction.
  • the oil cooler 8 is fastened to a cover 33 of the water tank 9 (see FIG. 2), the connections for supplying the lubricating oil to be cooled and for removing the cooled lubricating oil being arranged on the cover 33.
  • the cover 33 is fastened with screws in threaded bores which are introduced into sprues 38 formed on the water tank 9.
  • the oil cooler 8 is connected to the cover 33 to form a unit and can be assembled and disassembled with it.
  • the cooling water flow through the cooling water jacket 7 and the water tank 9 is indicated in FIG. 1 by arrows W starting from the two end-side inlet openings 31 and 32.
  • the cooling water flows both in the water tank 9 and in the water jacket 7 essentially in the direction of the longitudinal axis 6 of the cylinder crankcase 1, with a certain mixing of the two flows taking place along the openings 23 in the cooling water jacket wall 10.
  • the flow guidance shown serves primarily to better illustrate the cooling water flow through the cylinder crankcase 1. It is of course conceivable that the flow course of the cooling water flow runs differently than indicated in FIG. 1.
  • a cross flow can be generated in the water tank 9. Furthermore, by appropriately dimensioning the channel cross sections, the cooling water can be guided past predetermined locations of the cooling water jacket in a desired direction.
  • FIG. 2 shows a section II - II of FIG. 1. Identical components from FIG. 1 are identified by the same reference symbols.
  • a bearing block 34 of a crankshaft bearing 35 of a crankshaft (not shown) is arranged below the cylinder 2.
  • the bearing 16 of the camshaft (not shown) is shown on the right above the bearing chair 34, the bearing 16 and crankshaft bearing 35 being supplied with lubricating oil via a dashed-line pressure oil line 39.
  • the section 27 of the cooling water jacket 7 running in the direction of the longitudinal axis 6 of the cylinder crankcase 1 extends essentially parallel and along almost the entire height of the cylinders 2-5.
  • section 27 At the geodetically upper end of section 27 there is a passage 27a for cooling water channels in the cylinder head for each cylinder 2-5 and at the lower end of the section there is a formation 27b which extends close to a main oil line 17 running in the direction of the longitudinal axis 6 of the cylinder crankcase 1 reaches, whereby a certain cooling of the lubricating oil in the main oil line 17 is made possible.
  • the cooling water jacket 7 runs in the section 22 of the cooling water jacket wall 10 delimiting the water tank 9 in the direction of the vertical axis 2a or 3a of the cylinders 2 or 3 and in the longitudinal direction of the engine from an upper side 37 of the cylinder crankcase 1 to below the water box 9.
  • the screw whistle 29 for receiving the screw connection for the cylinder head can be seen below the passage opening 27a.
  • the screw pipe 29 only slightly reduces the cross section of the cooling water jacket 7, but the rigidity of the cooling water jacket wall 10 is significantly increased.
  • the section 28 of the cooling water jacket 7 of the cylinder crankcase 1 also runs parallel to the longitudinal axis 6 of the cylinder crankcase 1 and in the direction of the vertical axis 2a of the cylinder 2.
  • the height of the section 28 is somewhat lower because of the camshaft bearing 16.
  • FIG. 3 shows a section III-III of FIG. 1, the oil cooler 8 not being shown here.
  • Identical components from FIGS. 1 and 2 are identified by the same reference symbols.
  • the screw pipes 29 for the screw connection of the cylinder head are arranged on the side of the cylinder crankcase 1 facing the cylinder head.
  • the cooling water channel 24, which connects the two sections 27 and 28 of the cooling water jacket 7 in terms of flow, has in addition to the openings 23 to the water tank 9 (see FIG. 1) also via one below the Screw pipe 29 arranged opening 34 a flow connection with the water tank 9.
  • the cooling water channel 24 has a curved contour 35 on its geodetically upper side, a supporting pin 36 being arranged below this contour, approximately in the middle of the cooling water channel 24, which supports the two adjacent cylinder walls 2 'and 3' (see Fig. 1) supports each other.
  • the support pin 36 is cast on the cylinder crankcase 1.

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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

Die Erfindung bezieht sich auf ein Zylinderkurbelgehäuse (1) einer mehrzylindrigen Brennkraftmaschine, deren Zylinder (2-5) durch Zylinderwände (2'-5') gebildet sind, die von einem sich um einem äußeren Umkreis der Zylinderwände (2'-5') erstreckenden Kühlwassermantel (7) umgeben sind, der durch mindestens eine Kühlwassermantelwand (10) und den Zylinderwänden (2'-5') gebildet ist sowie mit einem Schmierölkreislauf, der einen seitlich am Zylinderkurbelgehäuse (1) angeordneten Ölkühler (8) umfaßt. Um ein gattungsgemäßes Zylinderkurbelgehäuse (1) baulich möglichst kompakt auszubilden, wobei gleichzeitig eine möglichst gute Integration des den Ölkühler (8) umgebenden Wassermantels (7) in den Kühlwasserkreislauf der Brennkraftmaschine erreichbar ist, wird erfindungsgemäß vorgeschlagen, daß seitlich am Zylinderkurbelgehäuse (1) ein Wasserkasten (9) angegossen ist, in den der Ölkühler (8) integrierbar ist, wobei ein Abschnitt (22) der Kühlwassermantelwand (10) gleichzeitig eine zylinderseitige Begrenzung des Wasserkastens bildet. <IMAGE>The invention relates to a cylinder crankcase (1) of a multi-cylinder internal combustion engine, the cylinders (2-5) of which are formed by cylinder walls (2'-5 ') which extend from an outer circumference of the cylinder walls (2'-5'). extending cooling water jacket (7) are surrounded, which is formed by at least one cooling water jacket wall (10) and the cylinder walls (2'-5 ') and with a lubricating oil circuit which comprises an oil cooler (8) arranged on the side of the cylinder crankcase (1). In order to make a generic cylinder crankcase (1) as compact as possible, while at the same time the best possible integration of the water jacket (7) surrounding the oil cooler (8) in the cooling water circuit of the internal combustion engine can be achieved, the invention proposes that a water box be located on the side of the cylinder crankcase (1) (9) is cast in, into which the oil cooler (8) can be integrated, a section (22) of the cooling water jacket wall (10) simultaneously forming a cylinder-side boundary of the water tank. <IMAGE>

Description

Die Erfindung bezieht sich auf ein Zylinderkurbelgehäuse einer mehrzylindrigen Brennkraftmaschine gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a cylinder crankcase of a multi-cylinder internal combustion engine according to the preamble of claim 1.

Aus der DE 40 29 408 A1 ist bereits ein Zylinderkurbelgehäuse einer mehrzylindrigen Brennkraftmaschine der gattungsgemäßen Art bekannt, wobei die Zylinderwände des Zylinderkurbelgehäuses von einem sich in Längsrichtung des Zylinderkurbelgehäuses erstreckenden Kühlwassermantel umgeben sind und wobei der Kühlwassermantel durch eine von den Zylinderwänden beabstandete Kühlwassermantelwand gebildet ist. Desweiteren befindet sich seitlich an dem Zylinderkurbelgehäuse ein Ölkühler eines Schmierkreislaufs der Brennkraftmaschine, wobei der Ölkühler in einem an das Zylinderkurbelgehäuse angeflanschten Ölkühlergehäuse angeordnet ist.A cylinder crankcase of a multi-cylinder internal combustion engine of the generic type is already known from DE 40 29 408 A1, the cylinder walls of the cylinder crankcase being surrounded by a cooling water jacket extending in the longitudinal direction of the cylinder crankcase, and the cooling water jacket being formed by a cooling water jacket wall spaced from the cylinder walls. Furthermore, an oil cooler of a lubrication circuit of the internal combustion engine is located on the side of the cylinder crankcase, the oil cooler being arranged in an oil cooler housing flanged to the cylinder crankcase.

Zum allgemeinen technischen Hintergrund wird noch auf die Druckschriften DE 44 00 952 C1 verwiesen.For general technical background, reference is also made to the publications DE 44 00 952 C1.

Der Erfindung liegt die Aufgabe zugrunde, ein gattungsgemäßes Zylinderkurbelgehäuse baulich möglichst kompakt auszubilden, wobei gleichzeitig eine möglichst gute Integration des den Ölkühler umgebenden Wassermantels in den Kühlwasserkreislauf der Brennkraftmaschine erreichbar ist.The invention has for its object to construct a generic cylinder crankcase structurally as compact as possible, while at the same time the best possible integration of the water jacket surrounding the oil cooler can be achieved in the cooling water circuit of the internal combustion engine.

Die Aufgabe wird erfindungsgemäß durch die im Kennzeichen des Patentanspruches 1 gegebenen Merkmale gelöst. Die Merkmale der Unteransprüche geben vorteilhafte Aus- und Weiterbildungen der Erfindung an.The object is achieved by the features given in the characterizing part of patent claim 1. The features of the subclaims indicate advantageous developments and developments of the invention.

Ein Vorteil des erfindungsgemäßen Zylinderkurbelgehäuses liegt darin, daß dieser durch den seitlich angegossenen Wasserkasten sehr kompakt baut. Gleichzeitig wird eine gute Integration des den Ölkühler umgebenden Wassermantels in den Kühlwasserkreislauf der Brennkraftmaschine erreicht.An advantage of the cylinder crankcase according to the invention is that it has a very compact construction due to the laterally cast-on water tank. At the same time, a good integration of the water jacket surrounding the oil cooler into the cooling water circuit of the internal combustion engine is achieved.

Durch die erfindungsgemäße Ausgestaltung nach Anspruch 2 wird durch den im wesentlichen entlang der gesamten Zylinderhöhe verlaufenden Kühlwassermantel die Integration des den Ölkühler umgebenden Wassermantels in den Kühlwasserkreislauf der Brennkraftmaschine weiter verbessert, indem die Zylinderumströmung in diesem Bereich nahezu ungestört ist und damit voll funktionsfähig gehalten wird.Due to the embodiment according to the invention, the integration of the water jacket surrounding the oil cooler into the cooling water circuit of the internal combustion engine is further improved by the cooling water jacket running essentially along the entire cylinder height by virtue of the fact that the flow around the cylinder in this area is almost undisturbed and is thus kept fully functional.

Durch die erfindungsgemäße Ausgestaltung nach Anspruch 3 kann in Abhängigkeit von der Dimensionierung des Ölkühlers und des Wasserkastens und den sich daraus ergebenden Strömungsquerschnitten eine Beeinflussung des Kühlwasserstromes im Bereich des den Wasserkasten begrenzenden Abschnittes der Kühlwassermantelwand vorgenommen werden.Due to the configuration according to the invention according to claim 3, depending on the dimensioning of the oil cooler and the water tank and the flow cross sections resulting therefrom, the cooling water flow can be influenced in the region of the section of the cooling water jacket wall delimiting the water tank.

Ein Vorteil der erfindungsgemäßen Ausgestaltung nach Anspruch 4 liegt in der weiter verbesserten Kühlwirkung, denn durch die Anordnung der Zylinder entsteht zwischen benachbarten Zylinderwänden durch die schlechtere Wärmeabfuhr ein Wärmestau, der zu unerwünschten Temperaturspitzen in den benachbarten Zylinderwänden führen kann. Durch die zwischen den benachbarten Zylinderwänden angeordneten Kühlwasserkanäle wird eine gleichmäßigere Kühlung und damit auch eine gleichmäßigere Wärmeausdehnung der einzelnen Zylinder erreicht.An advantage of the embodiment according to the invention lies in the further improved cooling effect, because the arrangement of the cylinders creates heat build-up between adjacent cylinder walls due to the poorer heat dissipation, which can lead to undesirable temperature peaks in the adjacent cylinder walls. Due to the cooling water channels arranged between the adjacent cylinder walls, a more uniform cooling and thus a more uniform thermal expansion of the individual cylinders is achieved.

Die Ausgestaltung der Erfindung nach Anspruch 5 stellt eine bevorzugte bauliche Ausführung des Zylinderkurbelgehäuses dar. Durch die an den Kühlwassermantelwänden angeformten Schraubenpfeifen wird eine einfache und in Serienstückzahlen kostengünstig herstellbare Schraubenanbindung des Zylinderkopfes realisiert.The embodiment of the invention according to claim 5 represents a preferred construction of the cylinder crankcase. The screw pipes formed on the cooling water jacket walls make it simple and inexpensive to produce in large numbers producible screw connection of the cylinder head realized.

Durch die erfindungsgemäße Ausgestaltung nach den Ansprüchen 8 und 9 wird eine modulare Bauweise des Ölkühlers mit dem Deckel des Wasserkastens erreicht. Ein weiterer Vorteil liegt in der verhältnismäßig einfachen Montage und Demontage des Ölkühlers.The inventive design according to claims 8 and 9, a modular design of the oil cooler is achieved with the lid of the water tank. Another advantage is the relatively simple assembly and disassembly of the oil cooler.

Ein Vorteil der Ausgestaltung der Erfindung nach Anspruch 10 liegt darin, daß durch den einteiligen Gesamtwasserkern, der die durch Kühlwasser ausgefüllten Volumina von Wasserkasten, Kühlwassermantel und Kühlwasserkanälen umfaßt, bei der Herstellung des Zylinderkopfes (üblicherweise aus Aluminium-Druckguß) dieser Gesamtwasserkern durch einen einzigen einstückigen Gießkern darstellbar ist, der beispielsweise im Croning-Formmaskenverfahren in Serienstückzahlen einfach und kostengünstig herstellbar ist.An advantage of the embodiment of the invention according to claim 10 is that the one-piece total water core, which comprises the volumes of water tank, cooling water jacket and cooling water channels filled by cooling water, in the manufacture of the cylinder head (usually made of die-cast aluminum) of these total water core by a single one-piece Casting core can be represented, which can be produced easily and inexpensively, for example using the croning mold mask process in large numbers.

Weitere Vorteile der Erfindung gehen aus den übrigen Unteransprüchen und der Beschreibung hervor.Further advantages of the invention emerge from the remaining subclaims and the description.

In der Zeichnung ist die Erfindung anhand eines Ausführungsbeispiels näher erläutert. Es zeigen:

Fig. 1
einen Längsschnitt durch ein erfindungsgemäßes Zylinderkurbelgehäuse normal zur Hochachse einer mehrzylindrigen Brennkraftmaschine, wobei seitlich an dem Zylindergehäuse ein Wasserkasten angegossen ist, in dem ein Ölkühler integriert ist,
Fig. 2
einen Querschnitt II - II des Zylinderkurbelgehäuses aus Fig. 1 und
Fig. 3
einen Querschnitt III - III des Zylinderkurbelgehäuses aus Fig. 1.
In the drawing, the invention is explained in more detail using an exemplary embodiment. Show it:
Fig. 1
2 shows a longitudinal section through a cylinder crankcase according to the invention normal to the vertical axis of a multi-cylinder internal combustion engine, a water box in which an oil cooler is integrated being cast onto the side of the cylinder housing,
Fig. 2
a cross-section II - II of the cylinder crankcase from Fig. 1 and
Fig. 3
a cross section III - III of the cylinder crankcase from FIG. 1st

Fig. 1 zeigt ein Zylinderkurbelgehäuse 1 einer nicht näher dargestellten mehrzylindrigen Brennkraftmaschine, deren Zylinder 2-5 durch Zylinderwände 2'-5' gebildet sind, die von einem sich um deren äußeren Umkreis erstreckenden Kühlwassermantel 7 umgeben sind, der durch mindestens eine Kühlwassermantelwand 10 und die Zylinderwände 2'-5' gebildet ist. Seitlich am Zylinderkurbelgehäuse 1 ist ein Ölkühler 8 angeordnet, der in einem seitlich am Zylinderkurbelgehäuse 1 angegossenen Wasserkasten 9 integriert ist. Der Ölkühler 8 ist Teil eines prinzipiell bekannten, nicht näher dargestellten Schmierölkreislaufs der Brennkraftmaschine.Fig. 1 shows a cylinder crankcase 1 of a multi-cylinder internal combustion engine, not shown, the cylinder 2-5 are formed by cylinder walls 2'-5 ', which are surrounded by a cooling water jacket 7 which extends around their outer periphery and is formed by at least one cooling water jacket wall 10 and the cylinder walls 2'-5'. An oil cooler 8 is arranged on the side of the cylinder crankcase 1 and is integrated in a water box 9 cast on the side of the cylinder crankcase 1. The oil cooler 8 is part of a lubrication oil circuit of the internal combustion engine which is known in principle and is not shown in detail.

Auf der dem Wasserkasten 9 gegenüberliegenden Seite 11 des Zylinderkurbelgehäuses 1 sind, jeweils in Verlängerung der zugehörigen Zylinderquerachse 2a-5a Aufnahmebohrungen 12-15 für nicht dargestellte Steckpumpen angeordnet, deren Pumpenstößel durch Nocken einer eine seitlich im Zylinderkurbelgehäuse 1 in Lagern 16 (siehe Fig. 2 und 3) gelagerten Nockenwelle betätigt werden. Zwischen den Zylindern 2-5 und den zugehörigen Aufnahmebohrungen 12-15 für die Steckpumpen sind jeweils zwei schräg zur Motorhochachse verlaufende Löcher 18, 18'- 21, 21' angeordnet, die zur Durchführung von nicht dargestellten Stoßstangen dienen. Die Stoßstangen befinden sich an ihrem einen Ende in kraftschlüssiger Verbindung mit Nocken besagter Nockenwelle und sind an ihrem anderen Ende mit im Zylinderkopf gelagerten Kipphebeln von Einlaß- und Auslaßventilen in prinzipiell bekannter Weise verbunden.On the side 11 of the cylinder crankcase 1 opposite the water tank 9, receiving bores 12-15 for plug-in pumps, not shown, are arranged, each in extension of the associated cylinder transverse axis 2a-5a, the pump tappet of which is provided by cams on one side in the cylinder crankcase 1 in bearings 16 (see FIG. 2 and 3) supported camshaft. Between the cylinders 2-5 and the associated receiving bores 12-15 for the plug-in pumps, two holes 18, 18'-21, 21 'are arranged at an angle to the motor vertical axis, which are used to carry out bumpers, not shown. The bumpers are at one end in a non-positive connection with cams of said camshaft and are connected at their other end with rocker arms of intake and exhaust valves mounted in the cylinder head in a manner known in principle.

Der durch den äußeren Umkreis der Zylinderwände 2'-5' und die Kühlwassermantelwand 10 gebildete Kühlwassermantel 7 ist in Richtung der Zylinderquerachsen 2a-5a beabstandet von den Zylinderwänden 2'-5' und verläuft längs der Hochachsen 2b-5b der Zylinder 2-5 und in Motorlängsrichtung. Insbesondere bildet ein Abschnitt 22 der Kühlwassermantelwand 10 gleichzeitig eine zylinderseitige Begrenzung des Wasserkastens 9, wobei der Kühlwassermantel 7 in besagtem Abschnitt 22 im wesentlichen durchgehend verläuft. In dem Abschnitt 22 der Kühlwassermantelwand 10 sind Öffnungen 23 zur strömungsmäßigen Verbindung von Kühlwassermantel 7 und Wasserkasten 9 angeordnet.The cooling water jacket 7 formed by the outer circumference of the cylinder walls 2'-5 'and the cooling water jacket wall 10 is spaced from the cylinder walls 2'-5' in the direction of the cylinder transverse axes 2a-5a and runs along the vertical axes 2b-5b of the cylinders 2-5 and in the engine longitudinal direction. In particular, a section 22 of the cooling water jacket wall 10 simultaneously forms a cylinder-side boundary of the water tank 9, the cooling water jacket 7 running essentially continuously in said section 22. In section 22 of the cooling water jacket wall 10, openings 23 for the fluid connection of the cooling water jacket 7 and the water tank 9 are arranged.

Zwischen benachbarten Zylinderwänden 2',3'; 3', 4' bzw. 4',5' sind in Motorquerrichtung Kühlwasserkanäle 24, 25 bzw. 26 angeordnet, die die in Motorlängsrichtung verlaufenden und gegenüberliegenden Abschnitte 27, 28 des Kühlwassermantels 7 strömungsmäßig verbinden.Between adjacent cylinder walls 2 ', 3'; 3 ', 4' and 4 ', 5' are arranged in the transverse direction of the engine cooling water channels 24, 25 and 26, respectively, which connect the sections 27, 28 of the cooling water jacket 7 which run and lie in the longitudinal direction of the engine in terms of flow.

An dem den Wasserkasten 9 begrenzenden Abschnitt 22 der Kühlwassermantelwand 10 sind Versteifungen in Form von Schraubenpfeifen 29 zur Schraubenanbindung eines nicht dargestellten Zylinderkopfes angeformt (siehe Fig. 2 und 3).On the section 22 of the cooling water jacket wall 10 delimiting the water tank 9, stiffeners in the form of screw pipes 29 for screw connection of a cylinder head (not shown) are formed (see FIGS. 2 and 3).

Eine Besonderheit des erfindungsgemäßen Zylinderkurbelgehäuses 1 liegt darin, daß bei dessen Herstellung im Aluminium-Druckgußverfahren die mit Kühlwasser ausgefüllten Volumina des Kühlwassermantels 7, des Wasserkastens 9 und der Kühlwasserkanäle 24-26 durch einen einheitlichen Gesamtwasserkern darstellbar sind, der beispielsweise im Croning-Formmaskenverfahren als einstückiger Gießkern herstellbar ist.A special feature of the cylinder crankcase 1 according to the invention is that when it is produced in the aluminum die casting process, the volumes of the cooling water jacket 7, the water tank 9 and the cooling water channels 24-26 filled with cooling water can be represented by a uniform total water core, which is, for example, in one piece in the croning form mask process Casting core can be produced.

Eine nicht dargestellte Wasserpumpe erzeugt eine zwangsweise Zirkulation des Kühlwassers im Kühlwasserkreislauf, wobei das von der Wasserpumpe geförderte Kühlwasser an einer Stirnseite 30 des Zylinderkurbelgehäuses 1 über eine dem Wasserkasten 9 zugeordnete erste Eintrittsöffnung 31 und eine dem Kühlwassermantel 7 zugeordnete zweite Eintrittsöffnung 32 in das Zylinderkurbelgehäuse 1 eintritt. Dabei sind die Hauptströmungsrichtungen der Kühlwasserströmung im Kühlwassermantel 7 und im Wasserkasten 9 im wesentlichen gleichgerichtet.A water pump, not shown, forcibly circulates the cooling water in the cooling water circuit, the cooling water conveyed by the water pump entering the cylinder crankcase 1 at an end face 30 of the cylinder crankcase 1 via a first inlet opening 31 assigned to the water tank 9 and a second inlet opening 32 assigned to the cooling water jacket 7 . The main flow directions of the cooling water flow in the cooling water jacket 7 and in the water tank 9 are essentially the same direction.

Der Ölkühler 8 ist an einem Deckel 33 des Wasserkastens 9 befestigt (siehe Fig. 2), wobei die Anschlüsse zur Zuführung des zu kühlenden und zur Abführung des gekühlten Schmieröls an dem Deckel 33 angeordnet sind. Der Deckel 33 ist mit Schrauben in Gewindebohrungen, die in am Wasserkasten 9 angeformten Angüssen 38 eingebracht sind, befestigt. Der Ölkühler 8 ist mit dem Deckel 33 zu einer Baueinheit verbunden und mit diesem montierbar und demontierbar.The oil cooler 8 is fastened to a cover 33 of the water tank 9 (see FIG. 2), the connections for supplying the lubricating oil to be cooled and for removing the cooled lubricating oil being arranged on the cover 33. The cover 33 is fastened with screws in threaded bores which are introduced into sprues 38 formed on the water tank 9. The oil cooler 8 is connected to the cover 33 to form a unit and can be assembled and disassembled with it.

Der Kühlwasserstrom durch den Kühlwassermantel 7 und den Wasserkasten 9 ist in Fig. 1, ausgehend von den beiden stirnseitigen Einlaßöffnungen 31 und 32, mit Pfeilen W angedeutet. Das Kühlwasser strömt sowohl im Wasserkasten 9 als auch im Wassermantel 7 im wesentlichen in Richtung der Längsachse 6 des Zylinderkurbelgehäuses 1, wobei längs der Öffnungen 23 in der Kühlwassermantelwand 10 eine gewisse Vermischung der beiden Strömungen stattfindet. Stromab des Ölkühlers 8 mündet die Strömung aus dem Wasserkasten 9 in einer Öffnung 40 in den Kühlwassermantel 7 ein. Die dargestellte Strömungsführung dient in erster Linie der besseren Verdeutlichung der Kühlwasserdurchströmung des Zylinderkurbelgehäuses 1. Selbstverständlich ist es denkbar, daß der Strömungsverlauf des Kühlwasserstromes anders als in Fig. 1 angedeutet verläuft. So kann beispielsweise bei verschlossener Eintrittsöffnung 31 und entsprechender Auslegung der relevanten Kanalquerschnitte eine Querströmung im Wasserkasten 9 erzeugt werden. Desweiteren kann durch eine entsprechende Dimensionierung der Kanalquerschnitte das Kühlwasser in einer gewünschten Richtung an vorgegebenen Stellen des Kühlwassermantels vorbeigeführt werden.The cooling water flow through the cooling water jacket 7 and the water tank 9 is indicated in FIG. 1 by arrows W starting from the two end-side inlet openings 31 and 32. The cooling water flows both in the water tank 9 and in the water jacket 7 essentially in the direction of the longitudinal axis 6 of the cylinder crankcase 1, with a certain mixing of the two flows taking place along the openings 23 in the cooling water jacket wall 10. Downstream of the oil cooler 8, the flow from the water tank 9 opens into the cooling water jacket 7 in an opening 40. The flow guidance shown serves primarily to better illustrate the cooling water flow through the cylinder crankcase 1. It is of course conceivable that the flow course of the cooling water flow runs differently than indicated in FIG. 1. For example, with a closed inlet opening 31 and a corresponding design of the relevant channel cross sections, a cross flow can be generated in the water tank 9. Furthermore, by appropriately dimensioning the channel cross sections, the cooling water can be guided past predetermined locations of the cooling water jacket in a desired direction.

In Fig. 2 ist ein Schnitt II - II von Fig. 1 dargestellt. Gleiche Bauteile von Fig. 1 sind mit gleichen Bezugszeichen gekennzeichnet. Unterhalb des Zylinders 2 ist ein Lagerstuhl 34 eines Kurbelwellenlagers 35 einer nicht dargestellten Kurbelwelle angeordnet. Rechts oberhalb des Lagerstuhles 34 ist das Lager 16 der nicht dargestellten Nockenwelle gezeigt, wobei Lager 16 und Kurbelwellenlager 35 über eine strichliert gezeichnete Druckölleitung 39 mit Schmieröl versorgt werden.FIG. 2 shows a section II - II of FIG. 1. Identical components from FIG. 1 are identified by the same reference symbols. A bearing block 34 of a crankshaft bearing 35 of a crankshaft (not shown) is arranged below the cylinder 2. The bearing 16 of the camshaft (not shown) is shown on the right above the bearing chair 34, the bearing 16 and crankshaft bearing 35 being supplied with lubricating oil via a dashed-line pressure oil line 39.

Der in Richtung der Längsachse 6 des Zylinderkurbelgehäuses 1 verlaufende Abschnitt 27 des Kühlwassermantels 7 erstreckt sich im wesentlichen parallel und entlang nahezu der gesamten Höhe der Zylinder 2-5.The section 27 of the cooling water jacket 7 running in the direction of the longitudinal axis 6 of the cylinder crankcase 1 extends essentially parallel and along almost the entire height of the cylinders 2-5.

An dem geodätisch oberen Ende des Abschnittes 27 befindet sich je Zylinder 2-5 eine Durchtrittsöffnung 27a zu Kühlwasserkanälen im Zylinderkopf und am unteren Ende des Abschnittes befindet sich eine Ausformung 27b, die bis nahe an eine in Richtung der Längsachse 6 des Zylinderkurbelgehäuses 1 verlaufende Hauptölleitung 17 heranreicht, wodurch eine gewisse Kühlung des Schmieröls in der Hauptölleitung 17 ermöglicht wird. Insbesondere verläuft der Kühlwassermantel 7 in dem den Wasserkasten 9 begrenzenden Abschnitt 22 der Kühlwassermantelwand 10 in Richtung der Hochachse 2a bzw. 3a der Zylinder 2 bzw. 3 und in Motorlängsrichtung von einer Oberseite 37 des Zylinderkurbelgehäuses 1 bis unterhalb des Wasserkastens 9.At the geodetically upper end of section 27 there is a passage 27a for cooling water channels in the cylinder head for each cylinder 2-5 and at the lower end of the section there is a formation 27b which extends close to a main oil line 17 running in the direction of the longitudinal axis 6 of the cylinder crankcase 1 reaches, whereby a certain cooling of the lubricating oil in the main oil line 17 is made possible. In particular, the cooling water jacket 7 runs in the section 22 of the cooling water jacket wall 10 delimiting the water tank 9 in the direction of the vertical axis 2a or 3a of the cylinders 2 or 3 and in the longitudinal direction of the engine from an upper side 37 of the cylinder crankcase 1 to below the water box 9.

Unterhalb der Durchtrittsöffnung 27a ist die Schraubenpfeife 29 zur Aufnahme der Schraubenanbindung für den Zylinderkopf zu sehen. Durch die Schraubenpfeife 29 erfolgt lediglich eine geringfügige Querschnittsverminderung des Kühlwassermantels 7, jedoch wird die Steifigkeit der Kühlwassermantelwand 10 wesentlich erhöht.The screw whistle 29 for receiving the screw connection for the cylinder head can be seen below the passage opening 27a. The screw pipe 29 only slightly reduces the cross section of the cooling water jacket 7, but the rigidity of the cooling water jacket wall 10 is significantly increased.

Der Abschnitt 28 des Kühlwassermantels 7 des Zylinderkurbelgehäuses 1 verläuft ebenfalls parallel zur Längsachse 6 des Zylinderkurbelgehäuses 1 und in Richtung der Hochachse 2a des Zylinders 2. Die Höhe des Abschnittes 28 ist wegen des Nockenwellenlagers 16 etwas geringer.
Am geodätisch oberen Ende des Abschnittes 28 befindet sich eine Durchtrittsöffnung 28a zu Kühlwasserkanälen im Zylinderkopf.The section 28 of the cooling water jacket 7 of the cylinder crankcase 1 also runs parallel to the longitudinal axis 6 of the cylinder crankcase 1 and in the direction of the vertical axis 2a of the cylinder 2. The height of the section 28 is somewhat lower because of the camshaft bearing 16.
At the geodetically upper end of section 28 there is a passage opening 28a to cooling water channels in the cylinder head.

In Fig. 3 ist ein Schnitt III - III von Fig. 1 dargestellt, wobei hier der Ölkühler 8 nicht eingezeichnet ist. Gleiche Bauteile aus Fig. 1 und 2 sind mit gleichen Bezugszeichen gekennzeichnet. Auf der dem Zylinderkopf zugewandten Seite des Zylinderkurbelgehäuses 1 sind die Schraubenpfeifen 29 für die Schraubenanbindung des Zylinderkopfes angeordnet. Der Kühlwasserkanal 24, der die beiden Abschnitte 27 und 28 des Kühlwassermantels 7 strömungsmäßig verbindet, besitzt neben den Öffnungen 23 zum Wasserkasten 9 (siehe Fig. 1) auch über eine unterhalb der Schraubenpfeife 29 angeordnete Öffnung 34 eine Strömungsverbindung mit dem Wasserkasten 9.FIG. 3 shows a section III-III of FIG. 1, the oil cooler 8 not being shown here. Identical components from FIGS. 1 and 2 are identified by the same reference symbols. On the side of the cylinder crankcase 1 facing the cylinder head, the screw pipes 29 for the screw connection of the cylinder head are arranged. The cooling water channel 24, which connects the two sections 27 and 28 of the cooling water jacket 7 in terms of flow, has in addition to the openings 23 to the water tank 9 (see FIG. 1) also via one below the Screw pipe 29 arranged opening 34 a flow connection with the water tank 9.

Zwischen den beiden Schraubenpfeifen 29 besitzt der Kühlwasserkanal 24 auf seiner geodätisch oberen Seite eine gewölbte Kontur 35, wobei unterhalb dieser Kontur, in etwa in der Mitte des Kühlwasserkanals 24 ein Abstützzapfen 36 angeordnet ist, der die beiden benachbarten Zylinderwände 2' und 3' (siehe Fig. 1) gegeneinander abstützt. Der Abstützzapfen 36 ist am Zylinderkurbelgehäuse 1 angegossen.Between the two screw pipes 29, the cooling water channel 24 has a curved contour 35 on its geodetically upper side, a supporting pin 36 being arranged below this contour, approximately in the middle of the cooling water channel 24, which supports the two adjacent cylinder walls 2 'and 3' (see Fig. 1) supports each other. The support pin 36 is cast on the cylinder crankcase 1.

Claims (10)

Zylinderkurbelgehäuse einer mehrzylindrigen Brennkraftmaschine, deren Zylinder durch Zylinderwände gebildet sind, die von einem sich mindestens teilweise um einem äußeren Umkreis der Zylinderwände erstreckenden Kühlwassermantel umgeben sind, der durch mindestens eine Kühlwassermantelwand und den Zylinderwänden gebildet ist sowie mit einem Schmierölkreislauf, der einen seitlich am Zylinderkurbelgehäuse angeordneten Ölkühler umfaßt,
dadurch gekennzeichnet,
daß seitlich am Zylinderkurbelgehäuse (1) ein Wasserkasten (9) angegossen ist, in den der Ölkühler (8) integrierbar ist, wobei ein Abschnitt (22) der Kühlwassermantelwand (10) gleichzeitig eine zylinderseitige Begrenzung des Wasserkastens (9) bildet.Cylinder crankcase of a multi-cylinder internal combustion engine, the cylinders of which are formed by cylinder walls which are surrounded by a cooling water jacket which extends at least partially around an outer periphery of the cylinder walls, which is formed by at least one cooling water jacket wall and the cylinder walls, and with a lubricating oil circuit which is arranged on the side of the cylinder crankcase Includes oil cooler,
characterized,
that a water box (9) is cast onto the side of the cylinder crankcase (1), into which the oil cooler (8) can be integrated, a section (22) of the cooling water jacket wall (10) simultaneously forming a cylinder-side boundary of the water box (9). Zylinderkurbelgehäuse nach Anspruch 1,
dadurch gekennzeichnet,
daß der Kühlwassermantel (7) in einem den Wasserkasten (9) begrenzenden Abschnitt (22) der Kühlwassermantelwand (10) in Richtung einer Hochachse (2b,3b) der Zylinder (2,3) und in Motorlängsrichtung von einer Oberseite (37) des Zylinderkurbelgehäuses (1) bis unterhalb des Wasserkastens (9) verläuft.Cylinder crankcase according to claim 1,
characterized,
that the cooling water jacket (7) in a section (22) of the cooling water jacket wall (10) delimiting the water tank (9) in the direction of a vertical axis (2b, 3b) of the cylinders (2, 3) and in the longitudinal direction of the engine from an upper side (37) of the cylinder crankcase (1) runs below the water tank (9). Zylinderkurbelgehäuse nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß in dem den Wasserkasten (9) begrenzenden Abschnitt (22) der Kühlwassermantelwand (10) Öffnungen (23) zur strömungsmäßigen Verbindung von Kühlwassermantel (7) und Wasserkasten (9) angeordnet sind.Cylinder crankcase according to claim 1 or 2,
characterized,
that openings (23) for the flow connection of the cooling water jacket (7) and water box (9) are arranged in the section (22) of the cooling water jacket wall (10) delimiting the water tank (9). Zylinderkurbelgehäuse Anspruch 3,
dadurch gekennzeichnet,
daß zwischen benachbarten Zylinderwänden (2',3';3',4';4',5') in Motorquerrichtung Kühlwasserkanäle (24-26) angeordnet sind, die gegenüberliegende Abschnitte (27,28) des Kühlwassermantels (7) strömungsmäßig verbinden.Cylinder crankcase claim 3,
characterized,
that between adjacent cylinder walls (2 ', 3'; 3 ', 4'; 4 ', 5') are arranged in the transverse direction of the engine cooling water channels (24-26) which connect opposite sections (27, 28) of the cooling water jacket (7) in terms of flow. Zylinderkurbelgehäuse nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet,
daß an dem den Wasserkasten (9) begrenzenden Abschnitt (22) der Kühlwassermantelwand (10) Versteifungen für Schraubenpfeifen (29) zur Schraubenanbindung eines Zylinderkopfes angeformt sind.Cylinder crankcase according to one of claims 1 to 4,
characterized,
that reinforcements for screw pipes (29) for screw connection of a cylinder head are formed on the section (22) of the cooling water jacket wall (10) delimiting the water tank (9). Zylinderkurbelgehäuse nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet,
daß der mindestens der Kühlwassermantel (7) und der Wasserkasten (9) einen einheitlichen Gesamtwasserkern bilden.Cylinder crankcase according to one of claims 1 to 5,
characterized,
that the at least the cooling water jacket (7) and the water tank (9) form a uniform total water core. Zylinderkurbelgehäuse nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet,
daß an einer Stirnseite (30) des Zylinderkurbelgehäuses (1) für das Kühlwasser eine dem Wasserkasten (9) zugeordnete erste Eintrittsöffnung (31) und eine dem Kühlwassermantel (7) zugeordnete zweite Eintrittsöffnung (32) angeordnet ist.Cylinder crankcase according to one of claims 1 to 6,
characterized,
that a first inlet opening (31) assigned to the water tank (9) and a second inlet opening (32) assigned to the cooling water jacket (7) are arranged on an end face (30) of the cylinder crankcase (1) for the cooling water. Zylinderkurbelgehäuse nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet,
daß der Ölkühler (8) an einem Deckel (33) des Wasserkastens (9) befestigt ist, wobei die Anschlüsse zur Zuführung des zu kühlenden und zur Abführung des gekühlten Schmieröls an dem Deckel (33) angeordnet sind.Cylinder crankcase according to one of claims 1 to 7,
characterized,
that the oil cooler (8) is fastened to a cover (33) of the water tank (9), the connections for supplying the cooling oil to be cooled and for removing the cooled lubricating oil being arranged on the cover (33). Zylinderkurbelgehäuse nach Anspruch 8,
dadurch gekennzeichnet,
daß der Ölkühler (8) mit dem Deckel (33) des Wasserkastens (9) montierbar und demontierbar ist.Cylinder crankcase according to claim 8,
characterized,
that the oil cooler (8) with the cover (33) of the water tank (9) can be assembled and disassembled. Zylinderkurbelgehäuse nach Anspruch 1 oder 6,
dadurch gekennzeichnet,
daß das umschlossene Volumen von Wasserkasten (9), Kühlwassermantel (7) und Kühlwasserkanälen (24-26) einen Gesamtwasserkern bilden, der durch einen einteiligen Gießkern darstellbar ist.Cylinder crankcase according to claim 1 or 6,
characterized,
that the enclosed volume of water tank (9), cooling water jacket (7) and cooling water channels (24-26) form a total water core, which can be represented by a one-piece casting core.
EP96118314A 1996-01-09 1996-11-15 Cylinder block of a multi-cylinder internal combustion engine Expired - Lifetime EP0784150B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19600566A DE19600566C1 (en) 1996-01-09 1996-01-09 Cylinder crank casing for multicylinder internal combustion engine
DE19600566 1996-01-09

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EP0784150A1 true EP0784150A1 (en) 1997-07-16
EP0784150B1 EP0784150B1 (en) 2000-06-07

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BR (1) BR9700019A (en)
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CN116412036A (en) * 2023-06-12 2023-07-11 中国第一汽车股份有限公司 Cylinder head co-casting and casting method thereof, internal combustion engine and vehicle

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FR1488629A (en) * 1966-08-03 1967-07-13 Liberecke Automobilove Zd Y Na Improvements to the mounting of the lubricating oil heat exchanger in the cooling circuit of an internal combustion engine
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DE4400952C1 (en) 1994-01-14 1995-05-24 Daimler Benz Ag Housing cover for an internal combustion engine

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DE1193310B (en) * 1959-06-20 1965-05-20 Daimler Benz Ag Lube oil-coolant heat exchanger for internal combustion engines
FR1488629A (en) * 1966-08-03 1967-07-13 Liberecke Automobilove Zd Y Na Improvements to the mounting of the lubricating oil heat exchanger in the cooling circuit of an internal combustion engine
DE4029408A1 (en) 1990-09-17 1992-03-26 Kloeckner Humboldt Deutz Ag IC engine lubricant heat exchanger - fits into recess in engine crankcase cover
JPH05321667A (en) * 1992-05-15 1993-12-07 Toyota Autom Loom Works Ltd Engine oil cooler device
DE4400952C1 (en) 1994-01-14 1995-05-24 Daimler Benz Ag Housing cover for an internal combustion engine

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DE19600566C1 (en) 1997-04-10
US5758608A (en) 1998-06-02
EP0784150B1 (en) 2000-06-07
DE59605396D1 (en) 2000-07-13
MX9700265A (en) 1998-04-30
BR9700019A (en) 1998-11-10

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