DE2913649A1 - Oil cooler for water cooled IC engine - has zigzag heat exchange partition between cooling water and oil in chamber in engine block - Google Patents

Oil cooler for water cooled IC engine - has zigzag heat exchange partition between cooling water and oil in chamber in engine block

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Publication number
DE2913649A1
DE2913649A1 DE19792913649 DE2913649A DE2913649A1 DE 2913649 A1 DE2913649 A1 DE 2913649A1 DE 19792913649 DE19792913649 DE 19792913649 DE 2913649 A DE2913649 A DE 2913649A DE 2913649 A1 DE2913649 A1 DE 2913649A1
Authority
DE
Germany
Prior art keywords
crankcase
combustion engine
internal combustion
lubricating oil
water
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.)
Withdrawn
Application number
DE19792913649
Other languages
German (de)
Inventor
Herbert Ampferer
Robert Binder
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dr Ing HCF Porsche AG
Original Assignee
Dr Ing HCF Porsche AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dr Ing HCF Porsche AG filed Critical Dr Ing HCF Porsche AG
Priority to DE19792913649 priority Critical patent/DE2913649A1/en
Publication of DE2913649A1 publication Critical patent/DE2913649A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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

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

Abstract

The water-cooled combustion engine comprises an oil cooler which consists of a heat exchanger (8) arranged in a chamber (5) within the engine block (1) and cooled by the engine coolant. The cooler comprises ducts (9, 10) which extend zig-zag fashion in axial direction of the block and through which cooling water and engine oil flow respectively. The ducts may be formed by a zig-zag shaped partition (11) secured in the chamber (5). The partition may have a flange (12) with a sealing face (13) secured on a corres. projection (6) of the chamber (5) via a sealing gasket (14).

Description

Wassergekühlte Brennkraftmaschine Water-cooled internal combustion engine

Die Erfindung bezieht sich auf eine wassergekühlte Brennkraftmaschine mit einem von der Kühlflüssigkeit der Brennkraftmaschine umspülten und in einem Einbauraum im Kurbelgehäuse angeordneten Schmierölwärmetauscher.The invention relates to a water-cooled internal combustion engine with one flushed by the coolant of the internal combustion engine and in one Installation space in the crankcase arranged lubricating oil heat exchanger.

Bei einer bekannten wassergekühlten Brennkraftmaschine mit einem von der Kühlflüssigkeit der Brennkraftmaschine umspülten Schmierölwärmetauscher wird der Schmierölwärmetauscher durch eine Rohrschlange gebildet, die in einen Einbauraum am/oder im Kurbelgehäuse der Brennkraftmaschine angeordnet ist (DE-AS 1 476 343). Die Rohrschlange liegt dabei im Kühlflüssigkeitskreislauf der Brennkraftmaschine und ist mit ihren beiden Enden an das Schmieröl system der Brennkraftmaschine angeschlossen. Bei diesem Schmierölwärmetauscher hat sich jedoch der geringe Wärmeaustausch zwischen der Kühlflüssigkeit und dem Schmieröl aufgrund der relativ geringen Rohrschlangenoberfläche erwiesen.In a known water-cooled internal combustion engine with one of the coolant of the internal combustion engine is surrounded by the lubricating oil heat exchanger The lubricating oil heat exchanger is formed by a coil which is inserted into an installation space is arranged on / or in the crankcase of the internal combustion engine (DE-AS 1 476 343). The coil lies in the coolant circuit of the internal combustion engine and is connected at both ends to the lubricating oil system of the internal combustion engine. In this lubricating oil heat exchanger, however, the low heat exchange between the cooling liquid and the lubricating oil due to the relatively small pipe coil surface proven.

Aufgabe der Erfindung ist es, eine wassergekühlte Brennkraftmaschine der eingangs genannten Art zu schaffen, bei der mit einfachen Mitteln der Wärmetausch zwischen der Kühlflüssigkeit und dem Schmiermittel verbessert wird.The object of the invention is to provide a water-cooled internal combustion engine to create the type mentioned, in which the heat exchange with simple means between the cooling liquid and the lubricant is improved.

Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß der Schmierölwärmetauscher in dem Einbauraum des Kurbelgehäuses in Kurbelgehäuse-Längsrichtung verlaufende mäanderförmige Kanäle umfasst, die vorzugsweise wechselweise von der Kühlflüssigkeit und dem Schmieröl durchströmt werden. Damit wird eine derart große Wärmetauschoberfläche geschaffen, durch die auch bei Hochleistungsmotoren mit einem geringen Bauvolumen ein ausreichend großer Wärmetausch zwischen der Kühlflüssigkeit und dem Schmieröl sichergestellt ist.According to the invention this object is achieved in that the lubricating oil heat exchanger running in the crankcase longitudinal direction in the installation space of the crankcase Comprises meandering channels, which are preferably alternately from the cooling liquid and the lubricating oil flow through. This creates such a large heat exchange surface created by which even with high-performance engines with a small construction volume a sufficiently large heat exchange between the cooling liquid and the lubricating oil is ensured.

In einer besonders zweckmässigen Ausführungsform der Erfindung werden die mäanderförmigen Kanäle durch wenigstens ein vom Kurbelgehäuse unabhängiges mäanderförmiges Bauteil gebildet, das in den Einbauraum des Kurbelgehäuses einsetzbar ist. Dies ermöglicht eine einfache Herstellung der mäanderförmigen Kanäle und ergibt eine große Montage- und Reparaturfreundlichkeit. Das mäanderförmige Bauteil weist einen umlaufenden Bund auf, zwischen dessen dem Kurbelgehäuse zugewandten Stirnfläche und der Stirnfläche eines umlaufenden Absatzes des Einbauraumes des Kurbelgehäuses eine Dichtung angeordnet ist. Desweiteren hat sich als vorteilhaft erwiesen, daß das mäanderförmige Bauteil auf der dem Kurbelgehäuse abgewandten Seite der Dichtung in den Schmierölkreislauf der Brennkraftmaschine und auf der dem Kurbelgehäuse zugewandten Seite der Dichtung in den Kühlflüssigkeitskreislauf der Brennkraftmaschine integriert ist.In a particularly expedient embodiment of the invention the meander-shaped channels through at least one meander-shaped channel that is independent of the crankcase Formed component that can be used in the installation space of the crankcase. this enables the meander-shaped channels to be produced easily and results in a great ease of assembly and repair. The meandering component has a circumferential collar, between its end face facing the crankcase and the end face of a circumferential shoulder of the installation space of the crankcase a seal is arranged. Furthermore, it has been found to be advantageous that the meandering component on the side of the seal facing away from the crankcase in the lubricating oil circuit of the internal combustion engine and on the one facing the crankcase Side of the seal integrated into the coolant circuit of the internal combustion engine is.

Dadurch werden Vorrichtungen zum dichten Abschließen von äußeren Zu- oder Abgängen vermieden, wodurch die Betriebssicherheit dieser Wärmetauschereinheit erhöht und deren Herstellungskosten verringert werden. Die von dem Schmieröl durchströmten mäanderförmigen Kanäle des mäanderförmigen Bauteiles sind gegenüber dem das Kurbelgehäuse umgebenden Raum durch einen Abschlußdeckel verschlossen, der auf der dem mäanderförmigen Bauteil abgewandten Seite Kühlrippen und auf der dem mäanderförmigen Bauteil zuqewandten Seite Kühlrippen aufweist. Durch diese Maßnahme wird eine weitere Temperatursenkung der Kühlflüssigkeit und des Schmieröls erzielt.As a result, devices for the tight closure of external closures or outflows avoided, thereby increasing the operational reliability of this heat exchanger unit increased and their manufacturing costs can be reduced. The flowed through by the lubricating oil Meander-shaped channels of the meander-shaped component are opposite to the crankcase surrounding space closed by a cover, which is on the meander-shaped Cooling ribs on the side facing away from the component and on the side facing the meander-shaped component Side has cooling fins. This measure results in a further temperature reduction the coolant and lubricating oil achieved.

In der Zeichnung ist die Erfindung anhand eines Brennkraftmaschinen-Teilquerschnittes in einer beispielsweisen Ausführungsform dargestellt.In the drawing, the invention is based on an internal combustion engine partial cross-section shown in an exemplary embodiment.

Das Kurbelgehäuse 1 umfasst einen Teil 2 des IEühlmi'Ltelkreislaufes, der durch den Zylinderkopf 3 verschlossen ist, einen Teil 4 des Schmiermi-tellçreislaufes und einen Einbauraum 5, der einen umlaufenden Absatz 6 mit einer Stirnfläche 7 umfasst. In dem Einbauraum 5 ist ein Schmierölwärmetauscher 8 angeordnet, der in Kurbelgehäuse-Längsrichtung verlaufende mäanderförmige, vorzugsweise wechselweise angeordnete Kanäle 9 und 10 umfasst, wobei die Kanäle 9 in den Kühlmittelkreislauf der Brennkraftmaschine integriert sind und von der Kühlflüssigkeit durchströmt werden, und die Kanäle 10 in den Schmierölkreislauf der Brennkraftmaschine integriert sind und vom Schmieröl durchströmt werden, so daß an deren Oberfläche ein Wärmeaustausch zwischen der Kühlflüssigkeit und dem Schmieröl erfolgt. Die mäanderförmigen Kanäle 9 und 10 werden durch wenigstens ein vom Kurbelgehäuse 1 unabhängiges mäanderförmiges Bauteil 11 gebildet, das in den Einbauraum 5 des Kurbelgehäuses 1 eingesetzt ist. Das mäanderförmige Bauteil 11 weist einen umlaufenden Bund 12 auf, zwischen dessen dem Kurbelgehäuse 1 zugewandten Stirnfläche 13 und der Stirnfläche 7 des umlaufenden Absatzes 6 des Einbauraumes 5 des Kurbelgehäuses 1 eine Dichtung 14 angeordnet ist. Die von dem Schmieröl durchströmten mäanderförmigen Kanäle 10 des Bauteiles 11 sind gegenüber dem das Kurbelgehäuse 1 umgebenden Raum durch einen Abschlußdeckel 15 verschlossen, der auf der dem mäanderförmigen Bauteil 11 abgewandten Seite Kühlrippen 16 und auf der dem mäanderförmigen Bauteil 11 zugewandten Seite Kühlrippen 17 aufweist. Die Kühlrippen 17 werden ebenfalls vom Schmieröl durchströmt und die Kühlrippen 16 werden von z.B. durch Luftleitbleche geführte Luft durchströmt, wodurch eine weitere Temperatursenkung des Kühlmittels und des Schmieröls erfolgt.The crankcase 1 comprises part 2 of the cooling medium circuit, which is closed by the cylinder head 3, part 4 of the lubricant circuit and an installation space 5, which comprises a circumferential shoulder 6 with an end face 7. In a lubricating oil heat exchanger 8 is arranged in the installation space 5 and extends in the longitudinal direction of the crankcase running meander-shaped, preferably alternately arranged channels 9 and 10 comprises, the channels 9 being integrated into the coolant circuit of the internal combustion engine are and are traversed by the cooling liquid, and the channels 10 in the lubricating oil circuit the internal combustion engine are integrated and are flowed through by the lubricating oil, so that on the surface of a heat exchange between the cooling liquid and the Lubricating oil takes place. The meandering channels 9 and 10 are through at least one formed by the crankcase 1 independent meander-shaped component 11, which is in the Installation space 5 of the crankcase 1 is used. The meandering component 11 has a circumferential collar 12, between which the crankcase 1 facing End face 13 and the end face 7 of the circumferential shoulder 6 of the installation space 5 of the crankcase 1, a seal 14 is arranged. The flowed through by the lubricating oil Meander-shaped channels 10 of component 11 are opposite to the crankcase 1 surrounding space closed by a cover 15, which is on the meander-shaped Component 11 facing away from cooling ribs 16 and on the meander-shaped component 11 has cooling fins 17 facing side. The cooling fins 17 are also the lubricating oil flows through and the cooling fins 16 are for example by air baffles guided air flows through it, thereby further reducing the temperature of the coolant and the lubricating oil.

Durch einen sich am Abschlußdeckel 15 abstützenden Führungssteg 18 des mäanderförmigen Bauteiles 11 wird das Bauteil in Einbaulage gehalten.By means of a guide web 18 supported on the cover 15 of the meander-shaped component 11, the component is held in the installed position.

LeerseiteBlank page

Claims (5)

Patentansprüche 1. Wassergekühlte Brennkraftmaschine mit einem von der ühlflüssigkeit der Brennkraftmaschine umspülten und in einem Einbauraum im Kurbelgehäuse angeordneten Schmierölwärmetauscher, dadurch gekennzeichnet, daß der Schmierölwärmetauscher (8) in dem Einbauraum (5) im Kurbelgehäuse (1) in Kurbelgehäuse-Längsrichtung verlaufende mäanderförmige Kanäle (9, 10) umfasst, die vorzugsweise wechselweise von der Kühlflüssigkeit und dem Schmieröl durchströmt werden. Claims 1. Water-cooled internal combustion engine with one of the coolant of the internal combustion engine was flushed around and in an installation space in the crankcase arranged lubricating oil heat exchanger, characterized in that the lubricating oil heat exchanger (8) in the installation space (5) in the crankcase (1) running in the longitudinal direction of the crankcase Meander-shaped channels (9, 10), which preferably alternate with the cooling liquid and the lubricating oil flow through. 2. Wassergekühlte Brennkraftmaschine nach Anspruch 1, dadurch gekennzeichnet, daß die mäanderförmigen Kanäle (9, 10) durch wenigstens ein vom Kurbelgehäuse (1) unabhängiges mäanderförmiges Bauteil (11 gebildet wird, das in den Einbauraum (5) des Kurbelgehäuses (1) einsetzbar ist.2. Water-cooled internal combustion engine according to claim 1, characterized in that that the meandering channels (9, 10) through at least one of the crankcase (1) independent meandering component (11 is formed, which is inserted into the installation space (5) of the crankcase (1) can be used. 3. Wassergekühlte Brennkraftmaschine nach Anspruch 2, dadurch gekennzeichnet, daß das mäanderförmige Bauteil (11) einen umlaufenden Bund (12) aufweist, zwischen dessen dem Kurbelgehäuse (1) zugewandter Stirnfläche (13) und der Stirnfläche (7) eines umlaufenden Absatzes (6) des Einbauraumes (5) des Kurbelgehäuses (1) eine Dichtung (14) angeordnet ist.3. Water-cooled internal combustion engine according to claim 2, characterized in that that the meandering component (11) has a circumferential collar (12) between its end face (13) facing the crankcase (1) and the end face (7) a circumferential shoulder (6) of the installation space (5) of the crankcase (1) a Seal (14) is arranged. 4. Wassergekühlte Brennkraftmaschine nach Anspruch 3, dadurch gekennzeichnet, daß das mäanderförmige Bauteil (11) auf der dem Kurbelgehäuse (1) abgewandten Seite der Dichtung (14) in den Schmierölkreislauf der Brennkraftmaschine und auf der dem Kurbelgehäuse (1) zugewandten Seite der Dichtung (14) in den Kühlflüssigkeitskreislauf der Brenflkraftmaschine integriert ist.4. Water-cooled internal combustion engine according to claim 3, characterized in that that the meandering component (11) on the side facing away from the crankcase (1) the seal (14) in the lubricating oil circuit of the internal combustion engine and on the Crankcase (1) facing side of the seal (14) into the coolant circuit the internal combustion engine is integrated. 5. Wassergekühlte Brennkraftmaschine nach den Ansprüchen 1 und 4, dadurch gekennzeichnet, daß die von dem Schmieröl durchströmten mäanderförmigen Kanäle (9, 10) des Bauteiles (11) gegenüber dem das Kurbelgehäuse (1) umgebenden Raum durch einen Abschlußdeckel (15) verschlossen sind, der auf der dem mäanderförmigen Bauteil (11) abgewandten Seite Kühlrippen (16) und auf der dem mäanderförmigen Bauteil (11) zugewandten Seite Kühlrippen (17) aufweist.5. Water-cooled internal combustion engine according to claims 1 and 4, characterized in that the meandering through which the lubricating oil flows Channels (9, 10) of the component (11) opposite those surrounding the crankcase (1) Space are closed by a cover (15) on the meander-shaped Component (11) facing away from cooling ribs (16) and on the meander-shaped component (11) has cooling fins (17) facing the side.
DE19792913649 1979-04-05 1979-04-05 Oil cooler for water cooled IC engine - has zigzag heat exchange partition between cooling water and oil in chamber in engine block Withdrawn DE2913649A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19792913649 DE2913649A1 (en) 1979-04-05 1979-04-05 Oil cooler for water cooled IC engine - has zigzag heat exchange partition between cooling water and oil in chamber in engine block

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DE19792913649 DE2913649A1 (en) 1979-04-05 1979-04-05 Oil cooler for water cooled IC engine - has zigzag heat exchange partition between cooling water and oil in chamber in engine block

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DE2913649A1 true DE2913649A1 (en) 1980-10-16

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3534593A1 (en) * 1984-09-29 1986-04-24 Nissan Motor Co., Ltd., Yokohama, Kanagawa COOLING SYSTEM FOR A MOTOR VEHICLE INTERNAL COMBUSTION ENGINE OR SIMILAR
EP0197169A1 (en) * 1985-04-09 1986-10-15 Ing. Walter Hengst GmbH & Co. KG Oil cooler
DE4029408A1 (en) * 1990-09-17 1992-03-26 Kloeckner Humboldt Deutz Ag IC engine lubricant heat exchanger - fits into recess in engine crankcase cover
US5522351A (en) * 1995-05-22 1996-06-04 Brunswick Corporation Internal combustion engine temperature control system
DE19652782A1 (en) * 1996-12-19 1998-06-25 Valeo Gmbh Seal for oil cooler of water box, used in gearbox of motor vehicle
EP0965743A3 (en) * 1998-06-20 2000-11-29 Cummins Engine Company, Ltd. Engine cylinder block with optimized stiffness
FR2873749A1 (en) * 2004-07-28 2006-02-03 Renault Sas Lubricant e.g. oil, cooling method for e.g. internal combustion engine, involves ensuring lubricant cooling by passing part of lubricant circulating circuit inside circulation chamber, where part is completely submerged in coolant
FR2891019A1 (en) * 2005-09-19 2007-03-23 Renault Sas Production of an internal combustion casing with an integration of lubricating fluid cooling system alongside the engine cooling system for efficient heat exchange across a common wall
DE102006061319A1 (en) * 2006-12-22 2008-01-31 Audi Ag Internal-combustion engine for motor vehicle, has lubricant chamber arranged within crank case, where lubricant is supplied from lubricant chamber into lubricant collecting chamber, and crank case exhibits cylindrical path for piston
EP3165728B1 (en) * 2015-10-22 2020-01-01 MAN Truck & Bus SE Housing element with integrated heat exchange

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3534593A1 (en) * 1984-09-29 1986-04-24 Nissan Motor Co., Ltd., Yokohama, Kanagawa COOLING SYSTEM FOR A MOTOR VEHICLE INTERNAL COMBUSTION ENGINE OR SIMILAR
EP0197169A1 (en) * 1985-04-09 1986-10-15 Ing. Walter Hengst GmbH & Co. KG Oil cooler
DE4029408A1 (en) * 1990-09-17 1992-03-26 Kloeckner Humboldt Deutz Ag IC engine lubricant heat exchanger - fits into recess in engine crankcase cover
DE4029408C2 (en) * 1990-09-17 2003-01-02 Deutz Ag Lube oil heat exchanger of an internal combustion engine
US5522351A (en) * 1995-05-22 1996-06-04 Brunswick Corporation Internal combustion engine temperature control system
DE19652782A1 (en) * 1996-12-19 1998-06-25 Valeo Gmbh Seal for oil cooler of water box, used in gearbox of motor vehicle
EP0965743A3 (en) * 1998-06-20 2000-11-29 Cummins Engine Company, Ltd. Engine cylinder block with optimized stiffness
FR2873749A1 (en) * 2004-07-28 2006-02-03 Renault Sas Lubricant e.g. oil, cooling method for e.g. internal combustion engine, involves ensuring lubricant cooling by passing part of lubricant circulating circuit inside circulation chamber, where part is completely submerged in coolant
FR2891019A1 (en) * 2005-09-19 2007-03-23 Renault Sas Production of an internal combustion casing with an integration of lubricating fluid cooling system alongside the engine cooling system for efficient heat exchange across a common wall
DE102006061319A1 (en) * 2006-12-22 2008-01-31 Audi Ag Internal-combustion engine for motor vehicle, has lubricant chamber arranged within crank case, where lubricant is supplied from lubricant chamber into lubricant collecting chamber, and crank case exhibits cylindrical path for piston
EP3165728B1 (en) * 2015-10-22 2020-01-01 MAN Truck & Bus SE Housing element with integrated heat exchange

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