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EP0099032B2 - Cylinder head for a water-cooled multi-cylinder internal-combustion engine - Google Patents

Cylinder head for a water-cooled multi-cylinder internal-combustion engine Download PDF

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Publication number
EP0099032B2
EP0099032B2 EP83106427A EP83106427A EP0099032B2 EP 0099032 B2 EP0099032 B2 EP 0099032B2 EP 83106427 A EP83106427 A EP 83106427A EP 83106427 A EP83106427 A EP 83106427A EP 0099032 B2 EP0099032 B2 EP 0099032B2
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EP
European Patent Office
Prior art keywords
duct
combustion chambers
cylinder head
row
longitudinal
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
Application number
EP83106427A
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German (de)
French (fr)
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EP0099032B1 (en
EP0099032A1 (en
Inventor
Jiri Dipl.-Ing. Seidl
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke 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
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Application filed by Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Priority to AT83106427T priority Critical patent/ATE12973T1/en
Publication of EP0099032A1 publication Critical patent/EP0099032A1/en
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Publication of EP0099032B2 publication Critical patent/EP0099032B2/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
    • F02F1/26—Cylinder heads having cooling means
    • F02F1/36—Cylinder heads having cooling means for liquid cooling
    • F02F1/38—Cylinder heads having cooling means for liquid cooling the cylinder heads being of overhead valve type
    • 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
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F2001/244—Arrangement of valve stems in cylinder heads
    • F02F2001/245—Arrangement of valve stems in cylinder heads the valve stems being orientated at an angle with the cylinder axis

Definitions

  • the invention relates to a cylinder head of the type according to the preamble of claim 1.
  • the longitudinal channel extends next to the row of combustion chambers just above the parting plane of the cylinder head to the cylinder block.
  • the connecting channels are parallel to this parting plane and at an angle to the row of combustion chambers and the longitudinal channel. All connection channels are drilled from the outside of the cylinder head and sealed there with cover caps. This design is only suitable for parallel hanging valve arrangements because the connecting channels parallel to the parting plane do not allow targeted cooling of the hottest points of the cylinder head in a V-shaped valve arrangement.
  • cylinder head of a similar type according to DE-A 3123538 several longitudinal channels are provided, two of which are open to the parting plane of the cylinder head to the cylinder block.
  • One of these two longitudinal channels has essentially only a longitudinal flow across the entire length of the cylinder head and runs in an arc shape parallel to the combustion chamber contours.
  • the second open longitudinal duct is arranged at a greater distance laterally outside of the combustion chambers and is connected to water spaces in the cylinder block via transverse bores which are closed on the opposite outside of the cylinder head and vertical bores which each open there.
  • Two further longitudinal channels extend over the combustion chambers and one of them in the area of valve guides.
  • the object of the invention is to arrange the longitudinal channel and the connecting channels in such a way that targeted cooling of hot cylinder head areas in all customary cylinder head types and a design of the longitudinal channel and the connecting channels that can be represented directly by drilling or casting molds without additional sealing measures can be achieved.
  • This object is achieved by the features of the characterizing part of claim 1.
  • This design results in a direct cooling effect of the longitudinal channel and the connecting channels on the hottest areas of the cylinder head. Since the straight-line connecting channels start directly from the niche-like water spaces, no plugs or sealing lids are required, so that production is simple and inexpensive.
  • a further development of the invention for a cylinder head with V-shaped hanging and offset in the longitudinal extension of the same valve is characterized in claim 2.
  • This design specifically cools places of the cylinder head that are subject to high thermal loads, in particular the area around the exhaust ports, the area between the exhaust port and spark plug, and the combustion chamber walls by means of targeted longitudinal and transverse flow through the longitudinal port and the connecting ports.
  • the oil temperature in the cylinder head is kept low due to its good cooling.
  • a die-cast cylinder head 1 for water-cooled internal combustion engines has several niche-like water spaces 2 and 3.
  • the water spaces 2 and 3 can be formed towards the parting plane 1 'between the cylinder head 1 and the cylinder block (not shown) and are arranged around combustion chambers 4.
  • the water spaces 2 and 3 are on the outside of the cylinder head 1. They have sections 5 and 6 which extend between two adjacent combustion chambers 4.
  • a longitudinal channel 7 is arranged at a distance from the combustion chambers 4.
  • Connecting channels 8, 9 and 10 extend from the water spaces 2 and 3 and from section 5 of the water space 2 to the longitudinal channel 7.
  • the connecting channels 8, 9 and 10 are arranged obliquely to the parting plane 1 '. They are made by drilling from water spaces 2 and 3 or from section 5 of water space 2.
  • connecting channels 8, 9 and 10 are also possible to form these connecting channels 8, 9 and 10 by means of casting molds.
  • the longitudinal channel 7 can be shaped toward the end faces of the cylinder head 1, not shown. There is no need for plugs and other closures, since the connecting channels are directly from the water spaces 2 and 3 or from section 5 of water chamber 2.
  • the cylinder head 1 has inlet and outlet ducts 11 and 12 that open out laterally.
  • the valves of which only the valve guides 13 and 14 are shown, are suspended, offset and arranged in a V-shape with respect to one another.
  • the inlet valve seat 15 and the outlet valve seat 16 are arranged correspondingly offset from one another.
  • a bore 17 for a spark plug is arranged opposite the inlet valve 15, so that it is on the same side as the outlet channel 12.
  • the connecting channels 8 and 10 are arranged on both sides of the exhaust valve seat 16 and the exhaust channel 12.
  • the connecting channel 8 is thus between the outlet channel 12 and the bore 17 for the spark plug.
  • the connecting duct 9 is arranged essentially opposite the outlet duct 12.
  • the longitudinal channel 7 lies between the valve guides 13 and 14.
  • the angle of inclination of the connecting channels 8, 9 and 10 with respect to the parting plane 1 ' is between 30 and 60 °.
  • the design described results in a cylinder head 1 with a low operating weight, since it has only a small water content. Due to the low water content, a good flow and cooling of the cylinder head can also be ensured with a water pump of relatively low drive power.
  • the longitudinal channel 7 cools the valve guides 13 and 14 and moreover protects the oil located in the valve chamber 18 above them from excessive heating.
  • the area between the exhaust port 12 and the bore 17 for the spark plug and the walls of the combustion chambers 4 are preferably cooled by means of a defined cross flow flowing through the connecting ports 8, 9 and 10 .

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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

A cylinder head for water-cooled multicylinder pressure die-cast formed internal combustion engines comprises series-arranged combustion chambers. A longitudinal duct is arranged at a spacing essentially above the combustion chambers, and niche-like water spaces are all integrally formed toward the dividing plane between the cylinder head and the cylinder block, and are arranged substantially all around the combustion chambers. Connecting ducts emanate from the water spaces and terminate in the longitudinal duct.

Description

Die Erfindung bezieht sich auf einen Zylinderkopf der Bauart nach dem Oberbegriff des Anspruches 1.The invention relates to a cylinder head of the type according to the preamble of claim 1.

Bei einem bekannten Zylinderkopf dieser Bauart gemäss der DE-A 2839 199 erstreckt sich der Längskanal neben der Reihe der Brennräume knapp über der Trennebene des Zylinderkopfes zum Zylinderblock. Die Verbindungskanäle liegen parallel zu dieserTrennebene und schräg zur Reihe der Brennräume sowie zum Längskanal. Alle Verbindungskanäle sind von einer Aussenseite des Zylinderkopfes gebohrt und dort mit Verschlussdeckeln verschlossen. Diese Ausbildung ist ausschliesslich für parallel hängende Ventilanordnungen geeignet, weil die zur Trennebene parallelen Verbindungskanäle bei einer V-förmigen Ventilanordnung keine gezielte Kühlung der heissesten Stellen des Zylinderkopfes ermöglichen.In a known cylinder head of this type according to DE-A 2839 199, the longitudinal channel extends next to the row of combustion chambers just above the parting plane of the cylinder head to the cylinder block. The connecting channels are parallel to this parting plane and at an angle to the row of combustion chambers and the longitudinal channel. All connection channels are drilled from the outside of the cylinder head and sealed there with cover caps. This design is only suitable for parallel hanging valve arrangements because the connecting channels parallel to the parting plane do not allow targeted cooling of the hottest points of the cylinder head in a V-shaped valve arrangement.

Bei einem weiteren bekannten Zylinderkopf ähnlicher Bauart gemäss DE-A 3123538 sind mehrere Längskanäle vorgesehen, von denen zwei zur Trennebene des Zylinderkopfes zum Zylinderblock offen ausgebildet sind. Einer dieser beiden Längskanäle ist im wesentlichen über die gesamte Zylinderkopflänge ausschliesslich längsdurchströmt und verläuft parallel zu den Brennraumkonturen jeweils bogenförmig. Der zweite offene Längskanal ist in grösserem Abstand seitlich ausserhalb der Brennräume angeordnet und steht über an der gegenüberliegenden Aussenseite des Zylinderkopfes verschlossene Querbohrungen sowie dort jeweils einmündende Vertikalbohrungen mit Wasserräumen im Zylinderblock in Verbindung. Zwei weitere Längskanäle erstrecken sich über den Brennräumen und einer davon im Bereich von Ventilführungen. Diese beiden Längskanäle sind ausschliesslich zwischen einer Kühlmittel aus dem Zylinderblock zuleitenden Ausnehmung im Bereich einer Stirnseite des Zylinderkopfes und Austrittsöffnungen an der gegenüberliegenden Stirnseite des Zylinderkopfes längsdurchströmt. Die Bohrungen der letztgenannten Längskanäle sind an einer Stirnseite des Zylinderkopfes mit Verschlusspfropfen verschlossen. Dadurch ist der Bauaufwand erhöht. Eine Ausbildung dieses bekannten Zylinderkopfes mit V-förmiger Ventilanordnung ist nicht vorgesehen.In another known cylinder head of a similar type according to DE-A 3123538, several longitudinal channels are provided, two of which are open to the parting plane of the cylinder head to the cylinder block. One of these two longitudinal channels has essentially only a longitudinal flow across the entire length of the cylinder head and runs in an arc shape parallel to the combustion chamber contours. The second open longitudinal duct is arranged at a greater distance laterally outside of the combustion chambers and is connected to water spaces in the cylinder block via transverse bores which are closed on the opposite outside of the cylinder head and vertical bores which each open there. Two further longitudinal channels extend over the combustion chambers and one of them in the area of valve guides. These two longitudinal channels are flowed longitudinally exclusively between a coolant supplying the cylinder block in the area of an end face of the cylinder head and outlet openings on the opposite end face of the cylinder head. The bores of the latter longitudinal channels are closed on one end of the cylinder head with a plug. This increases the construction effort. An embodiment of this known cylinder head with a V-shaped valve arrangement is not provided.

Aufgabe der Erfindung ist es, den Längskanal und die Verbindungskanäle so anzuordnen, dass eine gezielte Kühlung heisser Zylinderkopfbereiche bei allen üblichen Zylinderkopf-Bauarten und eine unmittelbar duch Bohren oder Gussformen ohne zusätzliche Verschlussmassnahmen darstellbare Ausbildung des Längskanals und der Verbindungskanäle erreicht werden kann.The object of the invention is to arrange the longitudinal channel and the connecting channels in such a way that targeted cooling of hot cylinder head areas in all customary cylinder head types and a design of the longitudinal channel and the connecting channels that can be represented directly by drilling or casting molds without additional sealing measures can be achieved.

Diese Aufgabe wird durch die Merkmale des kennzeichnenden Teiles des Anspruches 1 gelöst. Durch diese Ausbildung ergibt sich eine direkte Kühlwirkung des Längskanals und der Verbindungskanäle an den heissesten Zylinderkopfbereichen. Da die geradlinigen Verbindungskanäle unmittelbar von den nischenartigen Wasserräumen ausgehen, werden keine Stopfen oder Verschlussdeckel benötigt, so dass eine einfache und kostengünstige Fertigung gegeben ist.This object is achieved by the features of the characterizing part of claim 1. This design results in a direct cooling effect of the longitudinal channel and the connecting channels on the hottest areas of the cylinder head. Since the straight-line connecting channels start directly from the niche-like water spaces, no plugs or sealing lids are required, so that production is simple and inexpensive.

Es ist zwar bekannt (DE-A 27 56 006), einen Zylinderkopf nur mit zur Zylinderkopfdichtungsseite offenen ringabschnitt-förmigen Wasserräumen als Längskanal und einem weiteren dazu parallelen hochliegenden Längskanal zu versehen, jedoch sind bei diesem Zylinderkopf keine Verbindungskanäle zwischen den Wasserräumen und dem Längskanal mit einer gezielten Kühlwirkung in ihrem Bereich vorhanden und das Kühlwasser wird im wesentlichen nur längs durch den Zylinderkopf geleitet, so dass örtliche Temperaturspitzen auftreten können.Although it is known (DE-A 27 56 006) to provide a cylinder head only with annular section-shaped water spaces open to the cylinder head gasket side as the longitudinal channel and a further longitudinal channel lying parallel to it, this cylinder head does not have any connecting channels between the water spaces and the longitudinal channel There is a targeted cooling effect in their area and the cooling water is essentially only passed longitudinally through the cylinder head, so that local temperature peaks can occur.

Eine Weiterbildung der Erfindung für einen Zylinderkopf mit V-förmig hängenden und in Längserstreckung desselben versetzt angeordneten Ventilen ist in Anspruch 2 gekennzeichnet. Durch diese Ausbildung werden gezielt thermisch hoch belastete Stellen des Zylinderkopfes, insbesondere die Umgebung der Auslasskanäle, jeweils der Bereich zwischen Auslasskanal und Zündkerze sowie die Brennraumwände mittels einer gezielten Längs- und Querströmung durch den Längskanal und die Verbindungskanäle gekühlt. Ausserdem wird die Öltemperatur im Zylinderkopf durch dessen gute Kühlung niedrig gehalten.A further development of the invention for a cylinder head with V-shaped hanging and offset in the longitudinal extension of the same valve is characterized in claim 2. This design specifically cools places of the cylinder head that are subject to high thermal loads, in particular the area around the exhaust ports, the area between the exhaust port and spark plug, and the combustion chamber walls by means of targeted longitudinal and transverse flow through the longitudinal port and the connecting ports. In addition, the oil temperature in the cylinder head is kept low due to its good cooling.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt. Es zeigt:

  • Figur 1 einen Schnitt nach der Linie I-I der
  • Fig.2 eines Druckguss-Zylinderkopfes für wassergekühlte Brennkraftmaschinen und Figur 2 einen Schnitt nach der Linie 11-11 der Fig. 1.
In the drawing, an embodiment of the invention is shown. It shows:
  • 1 shows a section along the line II of
  • 2 shows a die-cast cylinder head for water-cooled internal combustion engines; and FIG. 2 shows a section along the line 11-11 of FIG. 1.

Ein Druckguss-Zylinderkopf 1 für wassergekühlte Brennkraftmaschinen weist mehrere nischenartige Wasserräume 2 und 3 auf. Die Wasserräume 2 und 3 sind zur Trennebene 1' zwischen Zylinderkopf 1 und dem nicht dargestellten Zylinderblock hin ausformbar und rings um Brennräume 4 angeordnet. Die Wasserräume 2 und 3 liegen zu den Aussenseiten des Zylinderkopfes 1 hin. Sie weisen Abschnitte 5 und 6 auf, die sich zwischen zwei benachbarten Brennräumen 4 aufeinanderzu erstrecken. Über den Brennräumen 4 ist mit Abstand zu diesen ein Längskanal 7 angeordnet. Von den Wasserräumen 2 und 3 und vom Abschnitt 5 des Wasserraumes 2 erstrecken sich Verbindungskanäle 8, 9 und 10 zum Längskanal 7. Die Verbindungskanäle 8, 9 und 10 sind schräg zur Trennebene 1' angeordnet. Sie sind durch Bohren von den Wasserräumen 2 und 3 bzw. vom Abschnitt 5 des Wasserraumes 2 aus hergestellt. Es ist auch möglich, diese Verbindungskanäle 8, 9 und 10 durch Gussformzüge auszuformen. Der Längskanal 7 ist zu den nicht dargestellten Stirnseiten des Zylinderkopfes 1 hin ausformbar. Stopfen und andere Verschlüsse erübrigen sich, da die Verbindungskanäle unmittelbar von den Wasserräumen 2 und 3 bzw. vom Abschnitt 5 des Wasserraumes 2 ausgehen.A die-cast cylinder head 1 for water-cooled internal combustion engines has several niche-like water spaces 2 and 3. The water spaces 2 and 3 can be formed towards the parting plane 1 'between the cylinder head 1 and the cylinder block (not shown) and are arranged around combustion chambers 4. The water spaces 2 and 3 are on the outside of the cylinder head 1. They have sections 5 and 6 which extend between two adjacent combustion chambers 4. A longitudinal channel 7 is arranged at a distance from the combustion chambers 4. Connecting channels 8, 9 and 10 extend from the water spaces 2 and 3 and from section 5 of the water space 2 to the longitudinal channel 7. The connecting channels 8, 9 and 10 are arranged obliquely to the parting plane 1 '. They are made by drilling from water spaces 2 and 3 or from section 5 of water space 2. It is also possible to form these connecting channels 8, 9 and 10 by means of casting molds. The longitudinal channel 7 can be shaped toward the end faces of the cylinder head 1, not shown. There is no need for plugs and other closures, since the connecting channels are directly from the water spaces 2 and 3 or from section 5 of water chamber 2.

Der Zylinderkopf 1 weist seitlich ausmündende Ein- und Auslasskanäle 11 bzw. 12 auf. Die Ventile, von denen nur die Ventilführungen 13 und 14 dargestellt sind, sind hängend, versetzt und V-förmig zueinander angeordnet. Der Einlassventilsitz 15 und der Auslassventilsitz 16 sind entsprechend versetzt zueinander angeordnet. Gegenüber dem Einlassventil 15 ist eine Bohrung 17 für eine Zündkerze angeordnet, so dass diese auf der gleichen Seite wie der Auslasskanal 12 liegt. Die Verbindungskanäle 8 und 10 sind beiderseits des Auslassventilsitzes 16 bzw. des Auslasskanales 12 angeordnet. Der Verbindungskanal 8 liegt somit zwischen dem Auslasskanal 12 und der Bohrung 17 für die Zündkerze. Der Verbindungskanal 9 ist im wesentlichen gegenüber dem Auslasskanal 12 angeordnet. Der Längskanal 7 liegt zwischen den Ventilführungen 13 und 14. Der Neigungswinkel der Verbindungskanäle 8, 9 und 10 in bezug auf die Trennebene 1' beträgt zwischen 30 und 60°.The cylinder head 1 has inlet and outlet ducts 11 and 12 that open out laterally. The valves, of which only the valve guides 13 and 14 are shown, are suspended, offset and arranged in a V-shape with respect to one another. The inlet valve seat 15 and the outlet valve seat 16 are arranged correspondingly offset from one another. A bore 17 for a spark plug is arranged opposite the inlet valve 15, so that it is on the same side as the outlet channel 12. The connecting channels 8 and 10 are arranged on both sides of the exhaust valve seat 16 and the exhaust channel 12. The connecting channel 8 is thus between the outlet channel 12 and the bore 17 for the spark plug. The connecting duct 9 is arranged essentially opposite the outlet duct 12. The longitudinal channel 7 lies between the valve guides 13 and 14. The angle of inclination of the connecting channels 8, 9 and 10 with respect to the parting plane 1 'is between 30 and 60 °.

Durch die beschriebene Ausbildung ergibt sich ein Zylinderkopf 1 mit einem geringen Betriebsgewicht, da er nur einen kleinen Wasserinhalt aufweist. Durch den geringen Wasserinhalt kann auch mit einer Wasserpumpe relativ geringer Antriebsleistung eine gute Durchströmung und Kühlung des Zylinderkopfes gewährleistet werden. Der Längskanal 7 kühlt die Ventilführungen 13 und 14 und schützt darüber hinaus das in der darüber liegenden Ventilkammer 18 befindliche Öl vor zu starker Erwärmung. Ferner werden beim Zylinderkopf 1 thermisch hoch belastete Stellen, insbesondere die Umgebung der Auslasskanäle 12, jeweils der Bereich zwischen Auslasskanal 12 und Bohrung 17 für die Zündkerze sowie die Wandungen der Brennräume 4 mittels einer durch die Verbindungskanäle 8, 9 und 10 strömenden definierten Querströmung bevorzugt gekühlt.The design described results in a cylinder head 1 with a low operating weight, since it has only a small water content. Due to the low water content, a good flow and cooling of the cylinder head can also be ensured with a water pump of relatively low drive power. The longitudinal channel 7 cools the valve guides 13 and 14 and moreover protects the oil located in the valve chamber 18 above them from excessive heating. In addition, in the cylinder head 1, places subject to high thermal stress, in particular the surroundings of the exhaust ports 12, the area between the exhaust port 12 and the bore 17 for the spark plug and the walls of the combustion chambers 4 are preferably cooled by means of a defined cross flow flowing through the connecting ports 8, 9 and 10 .

Claims (3)

1. A cylinder head producible by a die-casting method for fluid-cooled multi-cylinder internal combustion engines.
- with combustion chambers (4) arranged in a row,
- with valve guides (13, 14) for suspended inlet and outlet valves, which valve guides are arranged in at least one row parallel to the combustion chambers (4),
- with water chambers (2, 3) which can be connected to the cooling jacket of a cylinder block, and
- which are arranged around the combustion chambers (4) and towards the dividing plate (1 1) of the cylinder head (1) and are formed as recesses open in the direction of the cylinder block,
- with at least one longitudinal duct (7) parallel to the row of combustion chambers (4) and arranged at a distance from the dividing plate (1'), and
- with, for each combustion chamber (4), several linearly-extending connecting ducts (8, 9, 10) between the water chambers (2, 3) and the longitudinal duct (7),
- which extend transversely of the row of combustion chambers (4), characterized in
- that the longitudinal duct (7) is arranged, in relation to the dividing plande (1'), above the combustion chambers (4) as well as parallel to and closely adjacent to the row of valve guides (13, 14), and
- that the connecting ducts (8, 9, 10) are arranged at an angle to the dividing plane (1') and extend, in a straight line as bores and/or mould passages, from the water chambers (2, 3) to the longitudinal duct (7).
2. A cylinder head according to Claim 1, characterized in
- that a single longitudinal duct (7) extends generally centrally over the row of combustion chambers (4) between two rows of valve guides (13,14) which are arranged in V-form relatively to each other and which are provided for inlet and outlet valves suspended in V-form,
- that, seen in the direction of the row of combustion chambers, bores (17) for sparking plugs are each arranged generally parallel alongside outlet ducts (12), discharging at a longitudinal side, and substantially in common transverse planes with inlet ducts (11) which discharge at the other longitudinal side,
- that, at the two sides of each other outlet duct
(12) and generally in parallel transverse planes, a connecting duct (8; 10) is arranged,
- that each one of these ducts (8) extends between an outlet duct (12) and a bore (17) for sparking plugs,
- that a further connecting duct (9) is arranged alongside each inlet duct (11) and approximately in a transverse plane common to each outlet duct (12), and
- that the connecting ducts (8, 9, 10) extend from the longitudinal duct (7) towards both sides at an angle of approximately 30 to 60° to the dividing plane (1').
EP83106427A 1982-07-03 1983-07-01 Cylinder head for a water-cooled multi-cylinder internal-combustion engine Expired EP0099032B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83106427T ATE12973T1 (en) 1982-07-03 1983-07-01 CYLINDER HEAD FOR LIQUID-COOLED MULTI-CYLINDER ENGINE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3224945A DE3224945C1 (en) 1982-07-03 1982-07-03 Cylinder head for liquid-cooled multi-cylinder internal combustion engines
DE3224945 1982-07-03

Publications (3)

Publication Number Publication Date
EP0099032A1 EP0099032A1 (en) 1984-01-25
EP0099032B1 EP0099032B1 (en) 1985-04-24
EP0099032B2 true EP0099032B2 (en) 1989-03-01

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ID=6167563

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83106427A Expired EP0099032B2 (en) 1982-07-03 1983-07-01 Cylinder head for a water-cooled multi-cylinder internal-combustion engine

Country Status (5)

Country Link
US (1) US4471726A (en)
EP (1) EP0099032B2 (en)
JP (1) JPS5920548A (en)
AT (1) ATE12973T1 (en)
DE (2) DE3224945C1 (en)

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US4714058A (en) * 1984-12-10 1987-12-22 Mazda Motor Corporation Spark-ignited internal combustion engine
JPS6213759A (en) * 1985-07-10 1987-01-22 Toyota Motor Corp Cooling water passage structure in cylinder head for internal-combustion engine
DE3609762A1 (en) * 1986-03-22 1987-09-24 Kloeckner Humboldt Deutz Ag CYLINDER HEAD FOR AN INTERNAL COMBUSTION ENGINE
DE3639691A1 (en) * 1986-11-20 1988-06-01 Kloeckner Humboldt Deutz Ag DIESEL INTERNAL COMBUSTION ENGINE
DE4102358C2 (en) * 1991-01-26 2000-05-11 Volkswagen Ag Molded part to be produced in the die casting process, method for producing the molded part and hollow body for insertion into the molded part
DE4342800C2 (en) * 1993-12-15 1999-12-09 Deutz Ag Reciprocating internal combustion engine
DE19635535C2 (en) * 1996-09-02 1998-07-23 Daimler Benz Ag Cast cylinder head of a multi-cylinder internal combustion engine
DE19637122C1 (en) * 1996-09-12 1998-01-02 Porsche Ag Liquid-cooled cylinder head
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US4471726A (en) 1984-09-18
ATE12973T1 (en) 1985-05-15
JPS5920548A (en) 1984-02-02
DE3360141D1 (en) 1985-05-30
EP0099032B1 (en) 1985-04-24
DE3224945C1 (en) 1984-02-16
JPH0341667B2 (en) 1991-06-24
EP0099032A1 (en) 1984-01-25

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