EP1126151B1 - Liquid cooled transfer flow cylinder head for in-line combustion engines - Google Patents

Liquid cooled transfer flow cylinder head for in-line combustion engines Download PDF

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Publication number
EP1126151B1
EP1126151B1 EP01100319A EP01100319A EP1126151B1 EP 1126151 B1 EP1126151 B1 EP 1126151B1 EP 01100319 A EP01100319 A EP 01100319A EP 01100319 A EP01100319 A EP 01100319A EP 1126151 B1 EP1126151 B1 EP 1126151B1
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EP
European Patent Office
Prior art keywords
cylinder head
cavity
cylinder
cover
head according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP01100319A
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German (de)
French (fr)
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EP1126151A2 (en
EP1126151A3 (en
Inventor
Piet Pater
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Bayerische Motoren Werke AG
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Bayerische Motoren Werke AG
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Publication of EP1126151A3 publication Critical patent/EP1126151A3/en
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    • 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
    • F02F1/4214—Shape or arrangement of intake or exhaust channels in cylinder heads specially adapted for four or more valves per 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 
    • F02F1/24—Cylinder heads
    • F02F1/242—Arrangement of spark plugs or injectors
    • 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
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F2200/00—Manufacturing
    • F02F2200/06—Casting

Definitions

  • the invention relates according to the preamble of claim 1 to a liquid-cooled cross-flow cylinder head for internal combustion engines with cylinders arranged in series, wherein the cylinder head with integrated control housing between a cylinder head floor and a control housing side top wall comprises a limited side walls coolant space, wherein the cylinder head floor from the coolant space and the top wall passing through screw pipes and oil drainage channels and arranged about cylinder-centered shaft pipes for spark plugs or injection nozzles are provided and further the coolant space is divided by means of transverse walls between diametric screw pipes.
  • Such a cylinder head is for example from the DE 38 38 953 C2 known, the transverse walls between diametrical screw pipes the height of the coolant space to pass through to the flat top wall and further to the transverse walls in the connecting planes querab adjacent shaft pipes before the manhole tubes each longitudinal end walls are provided in a cross-flow of the cylinder head of the deflection of the coolant in Serve direction of the shaft tubes and the adjacent areas of the cylinder head floor, which are arranged on this additional guide ribs.
  • a disadvantage of this known cylinder head is the complex casting design and the large-scale coolant space training.
  • the invention has the object of providing a generic cylinder head casting technology easier to design with high rigidity and targeted coolant flow at least in cross flow.
  • a particularly rigid cylinder head is achieved in an advantageous manner in casting technology simpler embodiment by means of connected to the cylinder head floor via transverse walls wells, being achieved in a further advantageous manner with the elimination of separate guide ribs for influencing the flow better venting of the cylinder head.
  • the wells may be formed for a cylinder head as separate components, but they are preferably integrally formed in a further development of the invention by means of casting training, a trough - seen in plan view - extends from each screw pipe in the direction of a connecting plane of the transverse adjacent pit pipes and serves as a directed to the shaft tubes flow guidance.
  • a coolant cross-flow of the cylinder head is preferably supported.
  • a longitudinal flow can be achieved in that the transverse wall between the cylinder head floor and trough in the longitudinal direction of the cylinder head having pointing flow opening. This can be achieved near the ground, additional flow of the manhole pipes.
  • an additional stiffening of the cylinder head is achieved in that the trough is provided along its opening edge with a projecting over the top wall stiffening web.
  • a liquid-cooled cross-flow cylinder head 1 for a not shown internal combustion engine with cylinders arranged in series comprises an integrated control housing 2 and between a cylinder head bottom 3 and a control housing side cover wall 4 of side walls 5 limited coolant space 6. Further, the cylinder head 1 is designed such that from the cylinder head floor 3 from the coolant chamber 6 and the top wall 4 passing through screw pipes 7 and ⁇ Iablaufkanäle 8 and approximately cylinder-centered shaft pipes 9 are provided for spark plugs or injectors. Next, the coolant chamber 6 is divided by means of transverse walls 10 between diametric screw pipes 7.
  • a trough 11 is arranged in the top wall 4 between diametrical screw pipes 7 and each querab adjacent shaft tubes 9 , which by means of a transverse wall 10 between the diametric screw pipes 7 and the cylinder head floor 3 is connected, wherein from the transverse wall 10 in the direction of the top wall 4 rising wall sections 11 'and 11 "of the trough 11 serve as flow control surfaces.
  • the trough 11 is integrally formed by casting training in the cylinder head 1, wherein the trough 11 - seen in plan view - of each screw pipe 7 in the direction of a connecting plane 12 - Figure 3 - the querab adjacent shaft pipes. 9 extended and serves as a directed to the shaft tubes 9 flow guidance.
  • the trough 11 is connected to the oil drain channel 8 or 8 'via a separate channel 13.
  • the trough 11 with the screw pipe 7 integrally formed with an oil drain passage 8 via a screw pipe 7 passing through arranged Channel 13 in conjunction, wherein the screw pipe 7 surrounds a cylinder head screw, not shown with play.
  • an inlet opening 14 of the separate channel 13 is arranged in the trough 11 corresponding to the installation position of the cylinder head 1.
  • FIG. 3 a shows an oil drainage channel 8 formed in one piece with a screw pipe 7, while FIG. 3 b shows an oil drainage channel 8 'arranged freestanding from the screwing pipe 7.
  • each stiffening web 16 in its course across the cylinder head 1 approximately corresponds to the course of the wall sections shown in Figure 3 11 'and 11 "of the trough 11, each of the Verste Trentsstege 16 contributes to the stiffening of the cylinder head 1 in the longitudinal and transverse directions.
  • the invention is suitable for two-valve and multi-valve cylinder heads for in-line or V-engines.

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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)

Description

Die Erfindung bezieht sich nach dem Oberbegriff des Patentanspruches 1 auf einen flüssigkeitsgekühlten Querstrom-Zylinderkopf für Brennkraftmaschinen mit in Reihe angeordneten Zylindern, wobei der Zylinderkopf mit integriertem Steuergehäuse zwischen einem Zylinderkopfboden und einer steuergehäuseseitigen Deckwand einen von Seitenwänden begrenzten Kühlmittelraum umfasst, wobei vom Zylinderkopfboden aus den Kühlmittelraum und die Deckwand durchsetzende Schraubenpfeifen sowie Ölablaufkanäle und etwa zylindermittig angeordnete Schachtrohre für Zündkerzen oder Einspritzdüsen vorgesehen sind und weiter der Kühlmittelraum mittels Querwänden zwischen diametralen Schraubenpfeifen unterteilt ist.The invention relates according to the preamble of claim 1 to a liquid-cooled cross-flow cylinder head for internal combustion engines with cylinders arranged in series, wherein the cylinder head with integrated control housing between a cylinder head floor and a control housing side top wall comprises a limited side walls coolant space, wherein the cylinder head floor from the coolant space and the top wall passing through screw pipes and oil drainage channels and arranged about cylinder-centered shaft pipes for spark plugs or injection nozzles are provided and further the coolant space is divided by means of transverse walls between diametric screw pipes.

Ein derartiger Zylinderkopf ist beispielsweise aus der DE 38 38 953 C2 bekannt, wobei die Querwände zwischen diametralen Schraubenpfeifen den Kühlmittelraum der Höhe nach durchsetzen bis zur eben verlaufenden Deckwand und weiter an den Querwänden in den Verbindungsebenen querab benachbarter Schachtrohre vor den Schachtrohren jeweils endende Längswände vorgesehen sind, die bei einer Querdurchströmung des Zylinderkopfes der Ablenkung des Kühlmittels in Richtung der Schachtrohre und der angrenzenden Bereiche des Zylinderkopfbodens dienen, wobei an diesem zusätzliche Führungsrippen angeordnet sind.Such a cylinder head is for example from the DE 38 38 953 C2 known, the transverse walls between diametrical screw pipes the height of the coolant space to pass through to the flat top wall and further to the transverse walls in the connecting planes querab adjacent shaft pipes before the manhole tubes each longitudinal end walls are provided in a cross-flow of the cylinder head of the deflection of the coolant in Serve direction of the shaft tubes and the adjacent areas of the cylinder head floor, which are arranged on this additional guide ribs.

Nachteilig an diesem bekannten Zylinderkopf ist die aufwendige Gussgestaltung sowie die großräumige Kühlmittelraum-Ausbildung.A disadvantage of this known cylinder head is the complex casting design and the large-scale coolant space training.

Der Erfindung liegt die Aufgabe zugrunde, einen gattungsgemäßen Zylinderkopf gusstechnisch einfacher auszugestalten bei hoher Steifigkeit und gezielter Kühlmittelführung mindestens in Querströmung.The invention has the object of providing a generic cylinder head casting technology easier to design with high rigidity and targeted coolant flow at least in cross flow.

Diese Aufgabe ist mit dem Patentanspruch 1 dadurch gelöst, dass in der Deckwand zwischen diametralen Schraubenpfeifen und jeweils querab benachbarten Schachtrohren eine Mulde angeordnet ist, die mittels einer Querwand zwischen den diametralen Schraubenpfeifen mit dem Zylinderkopfboden in Verbindung steht, wobei von der Querwand in Richtung Deckwand ansteigend ausgebildete Wandabschnitte der Mulde als Strömungsleitflächen dienen.This object is achieved with the patent claim 1, characterized in that in the top wall between diametrical screw pipes and each querab adjacent shaft tubes a trough is arranged, which communicates by means of a transverse wall between the diametric screw pipes with the cylinder head floor in connection, rising from the transverse wall in the direction of the top wall trained wall sections of the trough serve as flow control surfaces.

Mit der Erfindung ist in vorteilhafter Weise bei gusstechnisch einfacherer Ausgestaltung mittels der mit dem Zylinderkopfboden über Querwände verbundenen Mulden ein besonders steifer Zylinderkopf erzielt, wobei in weiterer vorteilhafter Weise mit dem Fortfall gesonderter Leitrippen zur Strömungsbeeinflussung eine bessere Entlüftung des Zylinderkopfes erzielt ist.With the invention, a particularly rigid cylinder head is achieved in an advantageous manner in casting technology simpler embodiment by means of connected to the cylinder head floor via transverse walls wells, being achieved in a further advantageous manner with the elimination of separate guide ribs for influencing the flow better venting of the cylinder head.

Gemäß der Erfindung können die Mulden für einen Zylinderkopf als gesonderte Bauteile ausgebildet sein, sie sind jedoch in Weiterbildung der Erfindung vorzugsweise mittels Gussausbildung einstückig angeordnet, wobei eine Mulde sich - in Draufsicht gesehen - von jeder Schraubenpfeife aus in Richtung einer Verbindungsebene der querab benachbarten Schachtrohre erweitert und als eine zu den Schachtrohren gerichtete Strömungslenkung dient.According to the invention, the wells may be formed for a cylinder head as separate components, but they are preferably integrally formed in a further development of the invention by means of casting training, a trough - seen in plan view - extends from each screw pipe in the direction of a connecting plane of the transverse adjacent pit pipes and serves as a directed to the shaft tubes flow guidance.

Mit den vorgenannten Maßnahmen ist vorzugsweise eine Kühlmittel-Querdurchströmung des Zylinderkopfes unterstützt. In einer weiteren Ausgestaltung der Erfindung kann auch eine Längsdurchströmung dadurch erzielt sein, dass die Querwand zwischen Zylinderkopfboden und Mulde eine in Längsrichtung des Zylinderkopfes weisende Strömungsdurchbrechung aufweist. Damit kann eine bodennahe, zusätzliche Anströmung der Schachtrohre erzielt sein.With the aforementioned measures, a coolant cross-flow of the cylinder head is preferably supported. In a further embodiment of the invention, a longitudinal flow can be achieved in that the transverse wall between the cylinder head floor and trough in the longitudinal direction of the cylinder head having pointing flow opening. This can be achieved near the ground, additional flow of the manhole pipes.

Zur Ableitung des aus dem Steuergehäuse des Zylinderkopfes in eine Mulde gelangenden Schmieröles ist gemäß einem weiteren Vorschlag vorgesehen, dass die Mulde über einen gesonderten Kanal mit dem Ölablaufkanal in Verbindung steht, wobei in weiterer Ausgestaltung eine Einlauföffnung des gesonderten Kanals in der Mulde entsprechend der Einbaulage des Zylinderkopfes angeordnet ist. Damit wird die Umlaufmenge an Schmieröl klein gehalten und eine unnötige Aufheizung vermieden.To derive the passing of the control housing of the cylinder head into a trough lubricating oil is provided according to a further proposal that the trough is connected via a separate channel with the oil drain passage, in another embodiment, an inlet opening of the separate channel in the trough according to the installation position of the Cylinder head is arranged. Thus, the circulating amount of lubricating oil is kept small and avoid unnecessary heating.

Schließlich ist mit der Erfindung eine zusätzliche Aussteifung des Zylinderkopfes dadurch erzielt, dass die Mulde entlang ihres Öffnungsrandes mit einem über die Deckwand vorspringend angeordneten Versteifungssteg versehen ist. Mit dieser Anordnung sind in gusstechnisch vorteilhafter Weise quer zum längsgerichteten Zylinderkopf zwischen Schraubenpfeifen verlaufende Versteifungsstege erzielt, die gemäß der erfindungsgemäßen Muldenform V-förmig über den Zylinderkopf hinweg verlaufen und somit diesen sowohl in Quer- als auch in Längsrichtung zusätzlich aussteifen.Finally, with the invention, an additional stiffening of the cylinder head is achieved in that the trough is provided along its opening edge with a projecting over the top wall stiffening web. With this arrangement, stiffening webs extending between screw pipes perpendicular to the longitudinal cylinder head are obtained, which in accordance with the inventive trough shape extend over the cylinder head in a V-shaped manner, thus additionally stiffening the latter both in the transverse and in the longitudinal direction.

Die Erfindung ist anhand eines in der Zeichnung dargestellten Ausführungsbeispiels beschrieben. Es zeigt

Figur 1
einen Zylinderkopf mit integriertem Steuergehäuse im Querschnitt,
Figur 2
einen abschnittsweisen Längsschnitt durch den Zylinderkopf gemäß der Linie II-II und
Figur 3
den Zylinderkopf nach Figur 1 im Querschnitt gemäß der Linie III-III,
wobei in den Bildhäften 3a und 3b unterschiedliche Ölablaufkanäle dargestellt sind.
The invention is described with reference to an embodiment shown in the drawing. It shows
FIG. 1
a cylinder head with integrated control housing in cross section,
FIG. 2
a sectional longitudinal section through the cylinder head according to the line II-II and
FIG. 3
the cylinder head of Figure 1 in cross section according to the line III-III,
wherein in the Bildhäften 3a and 3b different oil drain channels are shown.

Ein flüssigkeitsgekühlter Querstrom-Zylinderkopf 1 für eine nicht gezeigte Brennkraftmaschine mit in Reihe angeordneten Zylindern umfasst ein integriertes Steuergehäuse 2 und einen zwischen einem Zylinderkopfboden 3 und einer steuergehäuseseitigen Deckwand 4 von Seitenwänden 5 begrenzten Kühlmittelraum 6. Weiter ist der Zylinderkopf 1 derart gestaltet, dass vom Zylinderkopfboden 3 aus den Kühlmittelraum 6 und die Deckwand 4 durchsetzende Schraubenpfeifen 7 sowie ÖIablaufkanäle 8 und etwa zylindermittig angeordnete Schachtrohre 9 für Zündkerzen oder Einspritzdüsen vorgesehen sind. Weiter ist der Kühlmittelraum 6 mittels Querwänden 10 zwischen diametralen Schraubenpfeifen 7 unterteilt.A liquid-cooled cross-flow cylinder head 1 for a not shown internal combustion engine with cylinders arranged in series comprises an integrated control housing 2 and between a cylinder head bottom 3 and a control housing side cover wall 4 of side walls 5 limited coolant space 6. Further, the cylinder head 1 is designed such that from the cylinder head floor 3 from the coolant chamber 6 and the top wall 4 passing through screw pipes 7 and ÖIablaufkanäle 8 and approximately cylinder-centered shaft pipes 9 are provided for spark plugs or injectors. Next, the coolant chamber 6 is divided by means of transverse walls 10 between diametric screw pipes 7.

Zur gusstechnisch vereinfachten Ausgestaltung des Zylinderkopfes 1 mit hoher Steifigkeit und gezielter Kühlmittelführung wird vorgeschlagen, dass in der Deckwand 4 zwischen diametralen Schraubenpfeifen 7 und jeweils querab benachbarten Schachtrohren 9 eine Mulde 11 angeordnet ist, die mittels einer Querwand 10 zwischen den diametralen Schraubenpfeifen 7 und dem Zylinderkopfboden 3 in Verbindung steht, wobei von der Querwand 10 in Richtung Deckwand 4 ansteigend ausgebildete Wandabschnitte 11' und 11" der Mulde 11 als Strömungsleitflächen dienen.For simplified casting technology of the cylinder head 1 with high rigidity and targeted coolant flow is proposed that in the top wall 4 between diametrical screw pipes 7 and each querab adjacent shaft tubes 9 a trough 11 is arranged, which by means of a transverse wall 10 between the diametric screw pipes 7 and the cylinder head floor 3 is connected, wherein from the transverse wall 10 in the direction of the top wall 4 rising wall sections 11 'and 11 "of the trough 11 serve as flow control surfaces.

Wie aus den Figuren 1 und 2 ersichtlich, ist die Mulde 11 mittels Gussausbildung einstückig im Zylinderkopf 1 angeordnet, wobei die Mulde 11 sich - in Draufsicht gesehen - von jeder Schraubenpfeife 7 aus in Richtung einer Verbindungsebene 12 - Figur 3 - der querab benachbarten Schachtrohre 9 erweitert und als eine zu den Schachtrohren 9 gerichtete Strömungslenkung dient.As can be seen from Figures 1 and 2, the trough 11 is integrally formed by casting training in the cylinder head 1, wherein the trough 11 - seen in plan view - of each screw pipe 7 in the direction of a connecting plane 12 - Figure 3 - the querab adjacent shaft pipes. 9 extended and serves as a directed to the shaft tubes 9 flow guidance.

Um das aus dem Steuergehäuse 2 in die Mulde 11 gelangende Schmieröl sicher abzuführen, steht die Mulde 11 über einen gesonderten Kanal 13 mit dem Ölablaufkanal 8 bzw. 8' in Verbindung.In order to safely remove the lubricating oil passing from the control housing 2 into the trough 11, the trough 11 is connected to the oil drain channel 8 or 8 'via a separate channel 13.

Gemäß Figur 1 steht die Mulde 11 mit dem mit einer Schraubenpfeife 7 einstückig ausgebildeten Ölablaufkanal 8 über einen die Schraubenpfeife 7 durchsetzend angeordneten Kanal 13 in Verbindung, wobei die Schraubenpfeife 7 eine nicht gezeigte Zylinderkopfschraube mit Spiel umschließt.According to Figure 1, the trough 11 with the screw pipe 7 integrally formed with an oil drain passage 8 via a screw pipe 7 passing through arranged Channel 13 in conjunction, wherein the screw pipe 7 surrounds a cylinder head screw, not shown with play.

Zur Vermeidung größerer Restmengen an Schmieröl ist eine Einlauföffnung 14 des gesonderten Kanals 13 in der Mulde 11 entsprechend der Einbaulage des Zylinderkopfes 1 angeordnet.To avoid larger residual amounts of lubricating oil, an inlet opening 14 of the separate channel 13 is arranged in the trough 11 corresponding to the installation position of the cylinder head 1.

Wie aus Figur 3 ersichtlich, ist in der Figur 3a ein mit einer Schraubenpfeife 7 einstückig ausgebildeter Ölablaufkanal 8 dargestellt, während in der Figur 3b ein von der Schraubenpfeife 7 freistehend angeordneter Ölablaufkanal 8' gezeigt ist.As can be seen from FIG. 3, FIG. 3 a shows an oil drainage channel 8 formed in one piece with a screw pipe 7, while FIG. 3 b shows an oil drainage channel 8 'arranged freestanding from the screwing pipe 7.

Aus Figur 1 ist weiter zu erkennen, dass die Querwand 10 zwischen Zylinderkopfboden 3 und Mulde 11 in Längsrichtung des Zylinderkopfes 1 weisende Strömungsdurchbrechungen 15 und 15' aufweist. Damit kann die Querströmung durch eine Längsströmung des Kühlmittels ergänzt sein.From Figure 1 it can be further seen that the transverse wall 10 between the cylinder head bottom 3 and trough 11 in the longitudinal direction of the cylinder head 1 facing flow openings 15 and 15 'has. Thus, the cross flow can be supplemented by a longitudinal flow of the coolant.

Schließlich ist eine zusätzliche Aussteifung des Zylinderkopfes 1 dadurch erreicht, dass die Mulde 11 entlang ihres Öffnungsrandes mit einem über die Deckwand 4 vorspringend angeordneten Versteifungssteg 16 versehen ist. Dadurch, dass jeder Versteifungssteg 16 in seinem Verlauf quer über den Zylinderkopf 1 etwa dem Verlauf der in Figur 3 gezeigten Wandabschnitte 11' und 11" der Mulde 11 entspricht, trägt jeder der Versteigungsstege 16 zur Aussteifung des Zylinderkopfes 1 in Längs- und Querrichtung bei.Finally, an additional stiffening of the cylinder head 1 is achieved in that the trough 11 is provided along its opening edge with a projecting over the top wall 4 stiffening web 16. Characterized in that each stiffening web 16 in its course across the cylinder head 1 approximately corresponds to the course of the wall sections shown in Figure 3 11 'and 11 "of the trough 11, each of the Versteigungsstege 16 contributes to the stiffening of the cylinder head 1 in the longitudinal and transverse directions.

Die Erfindung ist für Zwei-Ventil- und Mehr-Ventil-Zylinderköpfe für Reihen- oder V-Motore geeignet.The invention is suitable for two-valve and multi-valve cylinder heads for in-line or V-engines.

Claims (7)

  1. A liquid-cooled cross-flow cylinder head for internal combustion engines with cylinders arranged in a line,
    - wherein the cylinder head (1) and the incorporated valve-gear casing (2) comprise a coolant chamber (6) bounded by side walls (5) between a cylinder-head bottom (3) and a cover (4) on the valve-gear casing side, wherein
    - screw holes (7) extending from the cylinder-head bottom (3) through the coolant chamber (6) and the cover (4) are provided together with oil discharge ducts (8, 8') and shaft pipes (9) approximately in the middle of the cylinder for spark plugs or injection nozzles, and
    - the coolant chamber (6) is divided by transverse walls (10) between diametrically opposite screw holes (7),
    characterised in that
    - a cavity (11) is disposed in the cover between diametrically opposite screw holes (7) and respective shaft pipes (9) alongside,
    - wherein the cavity is connected to the cylinder head wall (3) by a transverse wall (10) between the diametrically opposite screw holes (7), wherein
    - wall portions (11', 11") of the cavity (11) rising from the transverse wall (10) in the direction of the cover (4) serve as flow guide surfaces.
  2. A cylinder head according to claim 1, characterised by
    - an integral cast arrangement of the cavity (11), which
    - in plan view widens from each screw hole (7) in the direction of a plane (12) joining the transverse neighbouring shaft pipes (9) and serves as a flow guide directed towards the shaft pipes (9).
  3. A cylinder head according to claim 2,
    characterised in that the cavity (11) is connected to the oil discharge duct (8, 8') by a separate duct (13).
  4. A cylinder head according to claims 2 and 3,
    characterised in that
    - the cavity (11) is connected to the oil discharge duct (8), integral with a screw hole (7), by a duct (13) extending through the screw hole (7), wherein
    - the screw hole (7) surrounds a cylinder head screw with clearance.
  5. A cylinder head according to claims 2 to 4,
    characterised in that an inlet opening (14) of the separate duct (13) is disposed in the cavity (11) corresponding to the position in which the cylinder head (1) is installed.
  6. A cylinder head according to claims 1 to 5,
    characterised in that the transverse wall (10) between the cylinder head bottom (3) and the cavity (11) comprises a flow aperture (15, 15') pointing in the longitudinal direction of the cylinder head.
  7. A cylinder head according to any of claims 1 to 6,
    characterised in that the cavity (11) along its opening edge is provided with a reinforcing web (16) projecting above the cover (4).
EP01100319A 2000-02-17 2001-01-04 Liquid cooled transfer flow cylinder head for in-line combustion engines Expired - Lifetime EP1126151B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10007151A DE10007151A1 (en) 2000-02-17 2000-02-17 Liquid-cooled cross flow cylinder head for IC engines has cover wall with recess connected via cross wall to cylinder had base, for rigid cylinder
DE10007151 2000-02-17

Publications (3)

Publication Number Publication Date
EP1126151A2 EP1126151A2 (en) 2001-08-22
EP1126151A3 EP1126151A3 (en) 2002-07-31
EP1126151B1 true EP1126151B1 (en) 2007-10-31

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Application Number Title Priority Date Filing Date
EP01100319A Expired - Lifetime EP1126151B1 (en) 2000-02-17 2001-01-04 Liquid cooled transfer flow cylinder head for in-line combustion engines

Country Status (4)

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US (1) US6508221B2 (en)
EP (1) EP1126151B1 (en)
DE (2) DE10007151A1 (en)
ES (1) ES2292501T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10329443B4 (en) * 2003-07-01 2012-04-26 Alexander Berndt Cylinder head for an internal combustion engine
DE10338778B4 (en) * 2003-08-23 2006-05-18 Adam Opel Ag Cylinder head for an internal combustion engine

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Publication number Priority date Publication date Assignee Title
DE814685C (en) * 1948-10-02 1951-09-24 Christian Dr-Ing Schmid Coolant supply in liquid-cooled internal combustion engines
CH413495A (en) 1963-10-25 1966-05-15 Maschf Augsburg Nuernberg Ag Cylinder covers for internal combustion engines
DE1476397A1 (en) 1965-01-05 1969-05-29 Motoren Werke Mannheim Ag Water-cooled internal combustion engine
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ES2292501T3 (en) 2008-03-16
US20010015183A1 (en) 2001-08-23
US6508221B2 (en) 2003-01-21
EP1126151A2 (en) 2001-08-22
DE50113178D1 (en) 2007-12-13
EP1126151A3 (en) 2002-07-31
DE10007151A1 (en) 2001-08-23

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