DE1009431B - Air-cooled cylinder head for internal combustion engines - Google Patents
Air-cooled cylinder head for internal combustion enginesInfo
- Publication number
- DE1009431B DE1009431B DEK22526A DEK0022526A DE1009431B DE 1009431 B DE1009431 B DE 1009431B DE K22526 A DEK22526 A DE K22526A DE K0022526 A DEK0022526 A DE K0022526A DE 1009431 B DE1009431 B DE 1009431B
- Authority
- DE
- Germany
- Prior art keywords
- air
- combustion chamber
- air flow
- cylinder head
- cooling
- 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.)
- Pending
Links
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
- F02F1/28—Cylinder heads having cooling means for air cooling
- F02F1/30—Finned cylinder heads
- F02F1/32—Finned cylinder heads 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
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
- F02B2275/16—Indirect injection
-
- 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
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
Landscapes
- 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
Luftgekühlter Zylinderkopf für Brennkraftmaschinen Gegenstand der Erfindung ist ein luftgekühlter Zylinderkopf für Brennkraftmaschinen mit im Kühlluftstrom nebeneinanderliegenden Ventilen zur Steuerung der Ein- und Auslaßkanäle mit einem zwischen den Ein- und Auslaßkanälen hindurchführenden Kühlluftkanal und mit einer Brennkammer, die in bezug auf die Strömungsrichtung der Kühlluft hinter den Ventilen im Kühlluftkanal angeordnet ist.Air-cooled cylinder head for internal combustion engines is the subject of Invention is an air-cooled cylinder head for internal combustion engines with in the cooling air flow adjacent valves for controlling the inlet and outlet channels with one between the inlet and outlet channels leading through cooling air channel and with a Combustion chamber, which is behind the valves in relation to the direction of flow of the cooling air is arranged in the cooling air duct.
Bei luftgekühlten Zylinderköpfen ist es erforderlich, daß der Kühlung der aus dem Zylinderkopfboden herausragenden Brennkammer besondere Aufmerksamkeit gewidmet wird, da hier die größte Wärmeentwicklung stattfindet.In the case of air-cooled cylinder heads, it is necessary that the cooling special attention is paid to the combustion chamber protruding from the bottom of the cylinder head is dedicated, as this is where the greatest heat development takes place.
Besondere Schwierigkeiten in bezug auf die Brennkammerkühlung entstehen besonders dann, wenn aus konstruktiven Gründen eine unmittelbare Bespülung dieser mit Frischluft nicht möglich ist, d. h. wenn die Kühlluft bevor sie die Brennkammerpartie erreicht, ihren Weg durch den Zylinderkopf, an den Ventilkanälen vorbei nehmen muß.Particular difficulties arise in relation to the combustion chamber cooling especially if, for constructional reasons, it is to be flushed immediately is not possible with fresh air, d. H. when the cooling air before it reaches the combustion chamber section reached, must take their way through the cylinder head, past the valve channels.
Durch den Gegenstand der Erfindung werden diese Schwierigkeiten dadurch beseitigt, daß die in den Kühlluftkanal eintretende Kühlluft in zwei Luftströme geteilt wird, deren innerer in an sich bekannter Weise den Steg zwischen den Ventilen, die Wände der Ein-und Auslaßkanäle und die dein Kühlluftkanal zugewendete Seite der Brennkammer bestreicht, während der äußere Luftstrom auf der dem Ventilsteg abgelegenen Seite des inneren Luftstromes einen getrennten Kühlkanal durchströmt und danach die Brennkammer im wesentlichen quer zur Strömungsrichtung des inneren Luftstromes umspült.The subject matter of the invention eliminates these difficulties eliminates the fact that the cooling air entering the cooling air duct is divided into two air streams is divided, the inner of which in a known manner the web between the valves, the walls of the inlet and outlet channels and the side facing your cooling air channel the combustion chamber sweeps, while the external air flow on the valve web remote side of the inner air flow flows through a separate cooling channel and then the combustion chamber substantially transversely to the flow direction of the inner Air flow washes around.
Es sind zwar luftgekühlte Zylinderköpfe für Brennkraftmaschinen bekannt, bei welchen die Kühlrippen an den Seiten der Brennkammer nach dem Grundkörper zu geneigt sind.There are air-cooled cylinder heads for internal combustion engines known, in which the cooling fins on the sides of the combustion chamber towards the base body are inclined.
Bei diesen erfolgt jedoch die Kühlung der Brennkammer nicht durch Frischluft, sondern die Luft wird, da sie auf dein Wege zur Brennkammer die heißen Flächen des Zylinderkopfbodens passiert, stark vorgewärmt, so daß eine intensive Kühlung der Brennkammer nicht gewährleistet ist.In these, however, the combustion chamber is not cooled Fresh air, but the air, as it is hot on your way to the combustion chamber Surfaces of the bottom of the cylinder head happened to be strongly preheated, so that an intense Cooling of the combustion chamber is not guaranteed.
Weiterhin sind luftgekühlte Zylinderköpfe für Brennkraftmaschinen bekannt, bei welchen der Frischluftstrom entweder direkt auf oder über die Brennkammer geleitet wird. Derartige Anordnungen betreffen jedoch die Aufgabenstellung der Erfindung nicht.Air-cooled cylinder heads are also used for internal combustion engines known in which the fresh air flow either directly on or via the combustion chamber is directed. Such arrangements, however, relate to the object of the invention not.
In der Zeichnung ist der Gegenstand der Erfindung in beispielsweiser Ausführungsform dargestellt. Abb. 1 ist ein Schnitt durch den luftgekühlten Zylinderkopf in der Ebene der Ventilschäfte; Abb. 2 zeigt einen Schnitt durch die Brennkammerebene in Richtung A-.4 in Abb. 1; Abb. 3 ist eine Seitenansicht des luftgekühlten Zylinderkopfes; Abb. 4 ist ein Schnitt in Richtung B-B in Abb. 3. Es bezeichnet a einen luftgekühlten Zylinderkopf einer Brennkraftmaschine, in welchem die Ventile b angeordnet sind, welche die Kanäle c und d gegenüber dem Zylinderraum e gasdicht abschließen.In the drawing, the subject matter of the invention is exemplified Embodiment shown. Fig. 1 is a section through the air-cooled cylinder head in the plane of the valve stems; Fig. 2 shows a section through the plane of the combustion chamber in direction A-.4 in Fig. 1; Fig. 3 is a side view of the air-cooled cylinder head; Fig. 4 is a section in the direction B-B in Fig. 3. A denotes an air-cooled Cylinder head of an internal combustion engine, in which the valves b are arranged, which seal the channels c and d gas-tight with respect to the cylinder space e.
Der Zylinderkopf ist an seiner Oberfläche in an sich bekannter Weise mit Kühlrippen besetzt, durch welche Kühlluft geblasen wird. Gemäß der Erfindung wird der Kühlluftstrom geteilt, wobei entsprechend den eingezeichneten Pfeilen der eine Teil als innerer Kühlluftstrom den mit Rippen g besetzten Kanal h und die äußeren Rippen durchströmt, während der andere Teilstrom als äußerer Kühlluftstrom in den ebenfalls mit Rippen i besetzten Kanal k geleitet wird und in seinem weiteren Verlauf die Brennkammer f quer zum inneren Luftstrom umspült. Die durch den Kanal k zu den Brennkammerwänden gelangende Kühlluft wird auf dem Wege von dem Eintritt in den Zylinderkopf bis zur Brennkammer nur sehr wenig erwärmt, so daß eine wirkungsvolle Kühlung der Brennkammerwände gewährleistet ist.The cylinder head has cooling ribs on its surface in a manner known per se, through which cooling air is blown. According to the invention, the cooling air flow is divided, with one part flowing through the channel h and the outer ribs as an inner cooling air flow as the arrows drawn in, while the other partial flow is passed as an outer cooling air flow into the channel k which is also covered with ribs i and in its further course the combustion chamber f washes around transversely to the inner air flow. The cooling air passing through the channel k to the combustion chamber walls is only slightly heated on the way from the entry into the cylinder head to the combustion chamber, so that effective cooling of the combustion chamber walls is ensured.
Aus der Zeichnung ist weiterhin leicht ersichtlich, daß die Begrenzungswände 1 des Kanals k, die an die Brennkammer anschließen, zusätzliche Wärmeableitungsflächen für die Brennkammer bilden. Diese können ebenfalls mit Rippen besetzt sein. Zur Bildung des Kanals k sind um die Brennkammer Leitbleche »i angeordnet.From the drawing it is also easy to see that the boundary walls 1 of the channel k, which connect to the combustion chamber, additional heat dissipation surfaces form for the combustion chamber. These can also be studded with ribs. To the Forming the channel k, guide plates »i are arranged around the combustion chamber.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK22526A DE1009431B (en) | 1954-06-11 | 1954-06-11 | Air-cooled cylinder head for internal combustion engines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK22526A DE1009431B (en) | 1954-06-11 | 1954-06-11 | Air-cooled cylinder head for internal combustion engines |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1009431B true DE1009431B (en) | 1957-05-29 |
Family
ID=7216475
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEK22526A Pending DE1009431B (en) | 1954-06-11 | 1954-06-11 | Air-cooled cylinder head for internal combustion engines |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1009431B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1119600B (en) * | 1958-11-15 | 1961-12-14 | Linde S Eismaschinen Ag Zweign | Air-cooled cylinder head for internal combustion engines |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE691753C (en) * | 1937-04-11 | 1940-06-05 | Bayerische Motoren Werke Akt G | of air-cooled internal combustion engines with a star arrangement of the cylinders |
DE841970C (en) * | 1950-11-12 | 1952-06-23 | Kloeckner Humboldt Deutz Ag | Cylinder head for air-cooled diesel engines |
-
1954
- 1954-06-11 DE DEK22526A patent/DE1009431B/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE691753C (en) * | 1937-04-11 | 1940-06-05 | Bayerische Motoren Werke Akt G | of air-cooled internal combustion engines with a star arrangement of the cylinders |
DE841970C (en) * | 1950-11-12 | 1952-06-23 | Kloeckner Humboldt Deutz Ag | Cylinder head for air-cooled diesel engines |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1119600B (en) * | 1958-11-15 | 1961-12-14 | Linde S Eismaschinen Ag Zweign | Air-cooled cylinder head for internal combustion engines |
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