EP0486771A1 - Cylinder head for water-cooled internal combustion engine - Google Patents

Cylinder head for water-cooled internal combustion engine Download PDF

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Publication number
EP0486771A1
EP0486771A1 EP91114129A EP91114129A EP0486771A1 EP 0486771 A1 EP0486771 A1 EP 0486771A1 EP 91114129 A EP91114129 A EP 91114129A EP 91114129 A EP91114129 A EP 91114129A EP 0486771 A1 EP0486771 A1 EP 0486771A1
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EP
European Patent Office
Prior art keywords
cylinder head
water
flange side
deck
cylinder
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
EP91114129A
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German (de)
French (fr)
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EP0486771B1 (en
Inventor
Winfried Distelrath
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Dr Ing HCF Porsche AG
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Dr Ing HCF Porsche AG
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Publication of EP0486771A1 publication Critical patent/EP0486771A1/en
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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 
    • F02F1/24—Cylinder heads
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4235—Shape or arrangement of intake or exhaust channels in cylinder heads of intake channels
    • 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 
    • F02F1/24—Cylinder heads
    • F02F1/26—Cylinder heads having cooling means
    • F02F1/36—Cylinder heads having cooling means for liquid cooling
    • F02F1/40—Cylinder heads having cooling means for liquid cooling cylinder heads with means for directing, guiding, or distributing liquid stream 
    • 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
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
    • 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 
    • F02F2001/008—Stress problems, especially related to thermal stress
    • 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 
    • F02F1/24—Cylinder heads
    • F02F2001/244—Arrangement of valve stems in cylinder heads
    • F02F2001/247—Arrangement of valve stems in cylinder heads the valve stems being orientated in parallel with the cylinder axis

Definitions

  • the invention relates to a cylinder head for a water-cooled internal combustion engine according to the preamble of claim 1.
  • DE-A 32 08 341 discloses a cylinder head in which the gas exchange inlet and outlet ducts are arranged according to the direct current principle, ie both ducts open into a common wall that laterally delimits the cylinder head.
  • Such direct current heads offer advantages over so-called cross current heads in terms of the space required, since all the components used for supplying the mixture and exhaust gas are arranged on one side of the internal combustion engine.
  • the invention has for its object to design a generic cylinder head in such a way that improved cooling is achieved with a cylinder head that can be produced in a simple manner.
  • the almost diagonally running deck together with the collecting duct allows cross-flow cooling of each cylinder, which cools the cylinder head evenly and effectively, and a low-resistance outflow of the heated water through the collecting duct.
  • the diagonal course of the deck keeps the amount of water in the area of the spark plug inclined to a wall delimiting the cylinder head low and leads the water transversely and quickly to the highly thermally stressed area of the outlet duct.
  • the arrangement of the collecting channel in the oil-carrying area enables a straight, low-resistance design of this channel.
  • the inlets arranged on the underside of the cylinder head for the cooling water flowing from the crankcase into the cylinder head are dimensioned such that the inlets assigned to the thermally loaded flange side supply approximately 2/3 of the total amount of water.
  • the inner boundary wall of the collecting duct has a smooth surface and is connected to the deck, so that the entire oil-carrying area can be formed in one piece upwards when the cylinder head is cast.
  • a cylinder head 1 of a water-cooled internal combustion engine has for each cylinder 2 an inlet duct 4 serving for gas exchange in a combustion chamber 3 and an outlet duct 5, both of which open into a flange side 6 which laterally delimits the cylinder head 1.
  • a delimiting wall 7 runs parallel to this flange side 6 and a cylinder head upper side 8 and a cylinder head lower side 9 of the cylinder head 1 run at right angles thereto.
  • the gas exchange is controlled by a camshaft (not shown) held in bearings 10, which act on cup tappets (not shown) mounted in bores 11 on valves which also slide (not shown) in guides 12.
  • Each combustion chamber 3 is assigned an ignition plug (not shown) which is inclined along an axis Z by means of an opening 13.
  • a deck 15 is arranged, which extends in the longitudinal direction L within the cylinder head 1.
  • the deck 15 separates a water-carrying area W facing the combustion chamber 3 from an oil-carrying area S which receives the valve control.
  • the cylinder head underside 9 has inlets 17 and 18, which lead cooling water into the cylinder head 1 from a crankcase of the internal combustion engine, not shown.
  • the entrances 17 and 18 are connected to cavities 19 and 20, the cavity 19 washing around the inlet and outlet channels 4 and 5 and opening into the collecting channel 16 at its geodetically highest point via a connection 21.
  • the cavity 20 flows around the guide 12 and is connected to the cavity 19 adjacent to the deck 15.
  • transverse walls 22 are arranged in the cylinder head 1 between adjacent cylinders 2 and have receptacles 23 for cylinder head screws, lubricating oil bores 24 and openings 25.
  • cooling water flows through the entrances 17, 18 into the cavities 19, 20 and through the connection 21 into the collecting duct 16. With respect to each cylinder 2, cross-flow cooling is thus established, which ensures uniform and intensive cooling of the cylinders 2 Areas of the cylinder head 1 causes.
  • Inside the collecting duct 16 there is a flow running in the longitudinal direction L, which is via a at the end of the collecting duct 16 arranged discharge opening 26 is fed to a cooling water circuit.
  • the flow resistance within the collecting duct 16 is very low, since it is not deflected, e.g. experienced through gas exchange channels. This low resistance causes a rapid flow through the cavities 19, 20 and thus rapid heating of the water in the starting phase of the internal combustion engine and effective cooling in continuous operation.
  • connection of an inner boundary wall 27 of the collecting duct 16 to the deck 15 and its smooth-surface design permit simple shaping of the oil-carrying region S when the cylinder head 1 is cast.
  • the openings 25 simplify the core bearings during casting, since only a single overall core is thus required, otherwise cores separated from each other by the transverse walls 22 would have to be stored for each cylinder 2.

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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)

Abstract

For the purpose of better cooling, a uniflow cylinder head has a diagonally extending deck (15) which separates an oil-bearing region (S) accommodating the valve gear from a water-bearing region (W) situated underneath the latter. The water is passed through the cylinder head above each cylinder in accordance with the cross-flow principle and drained off in a collecting channel (16) arranged within the oil-bearing region and extending in the longitudinal direction. <IMAGE>

Description

Die Erfindung betrifft einen Zylinderkopf für eine wassergekühlte Brennkraftmaschine gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a cylinder head for a water-cooled internal combustion engine according to the preamble of claim 1.

Die DE-A 32 08 341 offenbart einen Zylinderkopf, in dem die dem Gaswechsel dienenden Ein- und Auslaßkanäle nach dem Gleichstromprinzip angeordnet sind, d.h., beide Kanäle münden in einer gemeinsamen, den Zylinderkopf seitlich begrenzenden Wand.
Solche Gleichstromköpfe bieten gegenüber sogenannten Querstromköpfen Vorteile bezüglich des benötigten Bauraumes, da alle der Gemischzufuhr und der Abgasabfuhr dienenden Bauteile auf einer Seite der Brennkraftmaschine angeordnet sind.DE-A 32 08 341 discloses a cylinder head in which the gas exchange inlet and outlet ducts are arranged according to the direct current principle, ie both ducts open into a common wall that laterally delimits the cylinder head.
Such direct current heads offer advantages over so-called cross current heads in terms of the space required, since all the components used for supplying the mixture and exhaust gas are arranged on one side of the internal combustion engine.

Zur Kühlung solcher Gleichstromköpfe dienen in den Kopf eingegossene Wasserkanäle, die das Kühlwasser im wesentlichen in Längsrichtung der Brennkraftmaschine führen. Dieser wasserführende Bereich ist im allgemeinen durch ein nahezu horizontal verlaufendes Deck von einem darüberliegenden, den Ventiltrieb aufnehmenden ölführenden Bereich getrennt. Problematisch dabei ist die Tatsache, daß die mit unterschiedlicher Neigung vom Brennraum zu der Flanschseite des Zylinderkopfes verlaufenden Gaswechselkanäle für das in Längsrichtung strömende Wasser einen hohen Widerstand bilden, so daß ein großer Teil des Kühlwassers dem Weg des geringsten Widerstandes folgend entlang der der Flanschseite gegenüberliegenden Seite des Zylinderkopfes strömt. Dabei werden Bereiche unnötig stark gekühlt, z.B. die zu der gegenüberliegenden Seite geneigt liegende Zündkerzenaufnahme, während die thermisch hoch belasteten Bereiche ungenügend gekühlt werden. Diese Nachteile treten verstärkt auf, wenn die Brennkraftmaschine eine relativ hohe Leistung aufweist.For cooling such direct current heads, water channels are cast into the head, which guide the cooling water essentially in the longitudinal direction of the internal combustion engine. This water-carrying area is generally separated by an almost horizontal deck from an overlying oil-carrying area that receives the valve train. The problem here is the fact that the gas exchange channels which run at different inclinations from the combustion chamber to the flange side of the cylinder head form a high resistance for the water flowing in the longitudinal direction, so that a large part of the cooling water follows the path of least resistance along the side opposite the flange side of the cylinder head flows. Areas are cooled unnecessarily strongly, for example the spark plug receptacle inclined to the opposite side, while the thermally highly stressed areas are insufficiently cooled. These disadvantages are more pronounced when the internal combustion engine has a relatively high output.

Der Erfindung liegt die Aufgabe zugrunde, einen gattungsgemäßen Zylinderkopf derart zu gestalten, daß mit einem in einfacher Weise herstellbaren Zylinderkopf eine verbesserte Kühlung erzielt wird.The invention has for its object to design a generic cylinder head in such a way that improved cooling is achieved with a cylinder head that can be produced in a simple manner.

Die Lösung dieser Aufgabe gelingt mit den Merkmalen des Anspruchs 1. Vorteilhafterweise gestattet das nahezu diagonal verlaufende Deck gemeinsam mit dem Sammelkanal eine Querstromkühlung jedes Zylinders, die den Zylinderkopf gleichmäßig und effektiv kühlt sowie ein widerstandsarmes Abströmen des erwärmten Wassers durch den Sammelkanal.This object is achieved with the features of claim 1. Advantageously, the almost diagonally running deck together with the collecting duct allows cross-flow cooling of each cylinder, which cools the cylinder head evenly and effectively, and a low-resistance outflow of the heated water through the collecting duct.

Der diagonale Verlauf des Decks hält die Wassermenge im Bereich der zu einer den Zylinderkopf begrenzenden Wand geneigten Zündkerze gering und führt das Wasser quer und schnell zu dem thermisch hoch belasteten Bereich des Auslaßkanales. Die Anordnung des Sammelkanales im ölführenden Bereich ermöglicht eine geradlinige, widerstandsarme Gestaltung dieses Kanales.The diagonal course of the deck keeps the amount of water in the area of the spark plug inclined to a wall delimiting the cylinder head low and leads the water transversely and quickly to the highly thermally stressed area of the outlet duct. The arrangement of the collecting channel in the oil-carrying area enables a straight, low-resistance design of this channel.

Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen benannt. Die Anordnung des Sammelkanales an der geodätisch höchsten Stelle benachbart der Zylinderkopfoberseite sorgt gemeinsam mit dem schrägen Deck für eine rasche und vollständige Abfuhr von durch Kavitation, Kochen o.ä. auftretenden Luftblasen. Ein Ansammeln solcher Blasen an kritischen Bereichen kann zu einer ungleichmäßigen Kühlung und damit zu thermischen Spannungen mit der Gefahr einer Rißbildung führen.Advantageous embodiments of the invention are specified in the subclaims. The arrangement of the collecting duct at the geodetically highest point adjacent to the top of the cylinder head, together with the sloping deck, ensures rapid and complete removal of cavitation, boiling or the like. occurring air bubbles. Accumulation of such bubbles in critical areas can lead to uneven cooling and thus to thermal stresses with the risk of cracking.

Die an der Zylinderkopfunterseite angeordneten Eintritte für das aus dem Kurbelgehäuse in den Zylinderkopf strömende Kühlwasser sind so bemessen, daß die der thermisch belasteten Flanschseite zugeordneten Eintritte ca. 2/3 der gesamten Wassermenge zuführen.The inlets arranged on the underside of the cylinder head for the cooling water flowing from the crankcase into the cylinder head are dimensioned such that the inlets assigned to the thermally loaded flange side supply approximately 2/3 of the total amount of water.

Die innenliegende Begrenzungswand des Sammelkanales ist glattflächig gestaltet und an das Deck angebunden, so daß der gesamte ölführende Bereich beim Gießen des Zylinderkopfes einteilig nach oben ausformbar ist.The inner boundary wall of the collecting duct has a smooth surface and is connected to the deck, so that the entire oil-carrying area can be formed in one piece upwards when the cylinder head is cast.

Ein Ausführungsbeispiel der Erfindung wird anhand der Zeichnung näher erläutert.An embodiment of the invention is explained in more detail with reference to the drawing.

Es zeigen:

Fig. 1
schematisch eine Draufsicht auf einen Zylinderkopf,
Fig. 2
einen Schnitt entlang der Linie II-II gemäß Fig. 1,
Fig. 3
einen Schnitt entlang der Linie III-III gemäß Fig. 1 und
Fig. 4
einen Schnitt entlang der Linie IV-IV gemäß Fig. 1.
Show it:
Fig. 1
schematically a plan view of a cylinder head,
Fig. 2
2 shows a section along the line II-II according to FIG. 1,
Fig. 3
a section along the line III-III of FIG. 1 and
Fig. 4
a section along the line IV-IV of FIG. 1st

Ein Zylinderkopf 1 einer nicht gezeigten wassergekühlten Brennkraftmaschine weist für jeden Zylinder 2 einen dem Gaswechsel in einem Brennraum 3 dienenden Einlaßkanal 4 und einen Auslaßkanal 5 auf, die beide in eine den Zylinderkopf 1 seitlich begrenzende Flanschseite 6 münden. Parallel zu dieser Flanschseite 6 verläuft eine begrenzende Wand 7 und rechtwinklig dazu verläuft eine Zylinderkopfoberseite 8 und eine Zylinderkopfunterseite 9 des Zylinderkopfes 1.A cylinder head 1 of a water-cooled internal combustion engine, not shown, has for each cylinder 2 an inlet duct 4 serving for gas exchange in a combustion chamber 3 and an outlet duct 5, both of which open into a flange side 6 which laterally delimits the cylinder head 1. A delimiting wall 7 runs parallel to this flange side 6 and a cylinder head upper side 8 and a cylinder head lower side 9 of the cylinder head 1 run at right angles thereto.

Der Gaswechsel wird durch eine nicht gezeigte, in Lagern 10 gehaltene Nockenwelle gesteuert, die über nicht gezeigte, in Bohrungen 11 gelagerte Tassenstößel auf in Führungen 12 gleitende, ebenfalls nicht gezeigte Ventile wirken. Jedem Brennraum 3 ist mittels einer Öffnung 13 eine entlang einer Achse Z geneigte, nicht gezeigte Zündkerze zugeordnet.The gas exchange is controlled by a camshaft (not shown) held in bearings 10, which act on cup tappets (not shown) mounted in bores 11 on valves which also slide (not shown) in guides 12. Each combustion chamber 3 is assigned an ignition plug (not shown) which is inclined along an axis Z by means of an opening 13.

Von der Flanschseite 6 aus oberhalb des Einlaßkanales 4 nahezu diagonal zu der Wand 7 abfallend ist ein Deck 15 angeordnet, welches sich in Längsrichtung L innerhalb des Zylinderkopfes 1 erstreckt. Dabei trennt das Deck 15 einen dem Brennraum 3 zugewandten, wasserführenden Bereich W von einem die Ventilsteuerung aufnehmenden, ölführenden Bereich S ab. Innerhalb des ölführenden Bereiches S ist ein sich in Längsrichtung L benachbart der Zylinderkopfoberseite 8 und der Flanschseite 6 erstreckender, wasserführender Sammelkanal 16 angeordnet.From the flange side 6 from above the inlet duct 4 almost diagonally to the wall 7, a deck 15 is arranged, which extends in the longitudinal direction L within the cylinder head 1. The deck 15 separates a water-carrying area W facing the combustion chamber 3 from an oil-carrying area S which receives the valve control. A water-conducting collecting duct 16, which extends in the longitudinal direction L adjacent to the cylinder head top 8 and the flange side 6, is arranged within the oil-carrying region S.

Die Zylinderkopfunterseite 9 weist Eintritte 17 bzw. 18 auf, die aus einem nicht gezeigten Kurbelgehäuse der Brennkraftmaschine Kühlwasser in den Zylinderkopf 1 führen.The cylinder head underside 9 has inlets 17 and 18, which lead cooling water into the cylinder head 1 from a crankcase of the internal combustion engine, not shown.

Die Eintritte 17 und 18 sind mit Hohlräumen 19 und 20 verbunden, wobei der Hohlraum 19 die Ein- und Auslaßkanäle 4 und 5 umspült und an seiner geodätisch höchst gelegenen Stelle über eine Verbindung 21 in den Sammelkanal 16 mündet. Der Hohlraum 20 umspült die Führung 12 und ist benachbart zu dem Deck 15 an den Hohlraum 19 angeschlossen.The entrances 17 and 18 are connected to cavities 19 and 20, the cavity 19 washing around the inlet and outlet channels 4 and 5 and opening into the collecting channel 16 at its geodetically highest point via a connection 21. The cavity 20 flows around the guide 12 and is connected to the cavity 19 adjacent to the deck 15.

Gemäß Fig. 4 sind zwischen benachbarten Zylindern 2 Querwände 22 im Zylinderkopf 1 angeordnet, die Aufnahmen 23 für Zylinderkopfschrauben, Schmierölbohrungen 24 und Durchbrüche 25 aufweisen.4, transverse walls 22 are arranged in the cylinder head 1 between adjacent cylinders 2 and have receptacles 23 for cylinder head screws, lubricating oil bores 24 and openings 25.

Im Betrieb der Brennkraftmaschine strömt Kühlwasser durch die Eintritte 17, 18 in die Hohlräume 19, 20 und durch die Verbindung 21 in den Sammelkanal 16. Bezüglich jedes Zylinders 2 stellt sich somit eine Querstromkühlung ein, die eine gleichmäßige und intensive Kühlung der den Zylindern 2 zugeordneten Bereiche des Zylinderkopfes 1 bewirkt. Der von der Wand 7 zu der Flanschseite 6 ansteigende Verlauf des Decks 15 fördert gemeinsam mit dem nachströmenden Wasser jede eventuell auftretende Luftblase in den Sammelkanales 16. Innerhalb des Sammelkanales 16 liegt eine in Längsrichtung L verlaufende Strömung vor, die über eine am Ende des Sammelkanales 16 angeordnete Abströmöffnung 26 einem Kühlwasserkreislauf zugeführt wird. Der Strömungswiderstand innerhalb des Sammelkanales 16 ist sehr gering, da er durch die Verlegung in den ölführenden Bereich S keinerlei Umlenkung z.B. durch Gaswechselkanäle erfährt. Dieser geringe Widerstand bewirkt ein rasches Durchströmen der Hohlräume 19, 20 und somit eine schnelle Erwärmung des Wassers in der Startphase der Brennkraftmaschine und eine effektive Kühlung im Dauerbetrieb.During operation of the internal combustion engine, cooling water flows through the entrances 17, 18 into the cavities 19, 20 and through the connection 21 into the collecting duct 16. With respect to each cylinder 2, cross-flow cooling is thus established, which ensures uniform and intensive cooling of the cylinders 2 Areas of the cylinder head 1 causes. The course of the deck 15, which rises from the wall 7 to the flange side 6, conveys together with the inflowing water any air bubble that may occur in the collecting duct 16. Inside the collecting duct 16 there is a flow running in the longitudinal direction L, which is via a at the end of the collecting duct 16 arranged discharge opening 26 is fed to a cooling water circuit. The flow resistance within the collecting duct 16 is very low, since it is not deflected, e.g. experienced through gas exchange channels. This low resistance causes a rapid flow through the cavities 19, 20 and thus rapid heating of the water in the starting phase of the internal combustion engine and effective cooling in continuous operation.

Das Anbinden einer innenliegenden Begrenzungswand 27 des Sammelkanales 16 an das Deck 15 und deren glattflächige Gestaltung gestatten ein einfaches Ausformen des ölführenden Bereiches S beim Gießen des Zylinderkopfes 1.The connection of an inner boundary wall 27 of the collecting duct 16 to the deck 15 and its smooth-surface design permit simple shaping of the oil-carrying region S when the cylinder head 1 is cast.

Die Durchbrüche 25 vereinfachen die Kernlagerungen beim Gießen, da somit lediglich ein einziger Gesamtkern erforderlich ist, anderenfalls müßten für jeden Zylinder 2 durch die Querwände 22 voneinander getrennte Kerne gelagert werden.The openings 25 simplify the core bearings during casting, since only a single overall core is thus required, otherwise cores separated from each other by the transverse walls 22 would have to be stored for each cylinder 2.

Claims (5)

Zylinderkopf für eine wassergekühlte, mehrzylindrige Brennkraftmaschine, dessen dem Gaswechsel dienende Einlaß- und Auslaßkanäle in eine den Zylinderkopf seitlich begrenzende Flanschseite münden und der ein sich quer erstreckendes Deck aufweist, welches einen wasserführenden Bereich von einem darüberliegenden ölführenden Bereich trennt, dadurch gekennzeichnet, daß das Deck (15) nahezu diagonal von der Flanschseite (6) aus oberhalb des Einlaßkanales (4) abfallend zu der der Flanschseite (6) gegenüberliegenden, den Zylinderkopf (1) begrenzenden Wand (7) verlaufend angeordnet ist und daß der ölführende Bereich (S) einen sich in Längsrichtung (L) des Zylinderkopfes (1) erstreckenden, wasserführenden Sammelkanal (16) aufweist.Cylinder head for a water-cooled, multi-cylinder internal combustion engine, the inlet and outlet channels serving for the gas exchange open into a flange side which laterally delimits the cylinder head and which has a transversely extending deck which separates a water-carrying area from an overlying oil-carrying area, characterized in that the deck (15) almost diagonally from the flange side (6) from above the inlet channel (4) descending to the flange side (6) opposite, the cylinder head (1) delimiting wall (7) is arranged and that the oil-carrying area (S) one has in the longitudinal direction (L) of the cylinder head (1) extending, water-carrying collecting duct (16). Zylinderkopf nach Anspruch 1, dadurch gekennzeichnet, daß der Sammelkanal (16) benachbart der Zylinderkopfoberseite (8) und der Flanschseite (6) verlaufend angeordnet ist.Cylinder head according to claim 1, characterized in that the collecting duct (16) is arranged to run adjacent to the top side of the cylinder head (8) and the flange side (6). Zylinderkopf nach Anspruch 2, dadurch gekennzeichnet, daß das Kühlwasser über jedem Zylinder (2) zugeordnete, in der Zylinderkopfunterseite (9) angeordnete Eintritte (17, 18) einströmt, wobei die Eintritte (17, 18) der Flanschseite (6) bzw. der Wand (7) zugeordnet sind.Cylinder head according to claim 2, characterized in that the cooling water flows in via the inlets (17, 18) assigned to each cylinder (2) and arranged in the underside (9) of the cylinder head, the inlets (17, 18) on the flange side (6) or the Wall (7) are assigned. Zylinderkopf nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die der Flanschseite (6) zugeordneten Eintritte (17) ca. 65 % und die der Wand (7) zugeordneten Eintritte (18) ca. 35 % des Kühlwassers dem Zylinderkopf (1) zuführen.Cylinder head according to one or more of the preceding claims, characterized in that the inlets (17) assigned to the flange side (6) approx. 65% and the inlets (18) assigned to the wall (7) approx. 35% of the cooling water to the cylinder head (1 ) respectively. Zylinderkopf nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß eine innenliegende Begrenzungswand (27) des Sammelkanales (16) an das Deck (15) angebunden ist.Cylinder head according to one or more of the preceding claims, characterized in that an inner boundary wall (27) of the collecting duct (16) is connected to the deck (15).
EP91114129A 1990-11-19 1991-08-23 Cylinder head for water-cooled internal combustion engine Expired - Lifetime EP0486771B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4036810 1990-11-19
DE4036810A DE4036810C1 (en) 1990-11-19 1990-11-19

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EP0486771A1 true EP0486771A1 (en) 1992-05-27
EP0486771B1 EP0486771B1 (en) 1993-09-29

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DE (2) DE4036810C1 (en)
RU (1) RU1838648C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
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EP1538327A1 (en) * 2003-12-04 2005-06-08 Ford Global Technologies, LLC, A subsidary of Ford Motor Company Cylinder head with a cooling jacket that contains a cooling core and a venting channel

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0744542B1 (en) 1995-05-22 1999-08-11 Dr.Ing.h.c. F. Porsche Aktiengesellschaft Cylinder head for liquid cooled multicylinder internal combustion engine
DE102007027719B4 (en) * 2007-06-15 2015-05-13 Audi Ag Internal combustion engine with a heating circuit and a cooling circuit
AT506468B1 (en) 2009-03-24 2010-12-15 Avl List Gmbh CYLINDER HEAD OF AN INTERNAL COMBUSTION ENGINE
DE102013113609B4 (en) 2013-12-06 2022-02-24 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Crankcase with cooling water distribution for a multi-cylinder internal combustion engine
JP6341100B2 (en) * 2015-01-15 2018-06-13 トヨタ自動車株式会社 cylinder head

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE538641A (en) *
US2094893A (en) * 1933-09-02 1937-10-05 Continental Motors Corp Engine
GB1002846A (en) * 1963-02-27 1965-09-02 Vauxhall Motors Ltd Internal combustion engine cylinder head
FR1533173A (en) * 1964-01-14 1968-07-19 Improvements to internal combustion engine cylinder heads

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3208341A1 (en) * 1982-03-09 1983-09-15 Klöckner-Humboldt-Deutz AG, 5000 Köln CYLINDER HEAD FOR A WATER-COOLED INTERNAL COMBUSTION ENGINE

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE538641A (en) *
US2094893A (en) * 1933-09-02 1937-10-05 Continental Motors Corp Engine
GB1002846A (en) * 1963-02-27 1965-09-02 Vauxhall Motors Ltd Internal combustion engine cylinder head
FR1533173A (en) * 1964-01-14 1968-07-19 Improvements to internal combustion engine cylinder heads

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1538327A1 (en) * 2003-12-04 2005-06-08 Ford Global Technologies, LLC, A subsidary of Ford Motor Company Cylinder head with a cooling jacket that contains a cooling core and a venting channel

Also Published As

Publication number Publication date
EP0486771B1 (en) 1993-09-29
DE4036810C1 (en) 1991-12-05
RU1838648C (en) 1993-08-30
DE59100434D1 (en) 1993-11-04

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