DE19955431B4 - Cylinder head for an internal combustion engine - Google Patents
Cylinder head for an internal combustion engine Download PDFInfo
- Publication number
- DE19955431B4 DE19955431B4 DE1999155431 DE19955431A DE19955431B4 DE 19955431 B4 DE19955431 B4 DE 19955431B4 DE 1999155431 DE1999155431 DE 1999155431 DE 19955431 A DE19955431 A DE 19955431A DE 19955431 B4 DE19955431 B4 DE 19955431B4
- Authority
- DE
- Germany
- Prior art keywords
- cylinder head
- intake
- head housing
- stiffening ribs
- internal combustion
- 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 - Fee Related
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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
- F02F1/4214—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
- 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
Abstract
Zylinderkopf für eine Brennkraftmaschine, mit einem Gaswechselkanäle aufweisenden Zylinderkopfgehäuse, das mit Lagerstellen für die Aufnahme mindestens jeweils einer Ein- und Auslassnockenwelle versehen ist, wobei zwischen mindestens zwei Lagerstellen der Ein- und Auslassnockenwelle Versteifungsrippen angeordnet sind, mit Durchgangsbohrungen für die Aufnahme von Zylinderkopfschrauben, sowie mit Ventilschaftführungen für die die Gaswechselkanäle kontrollierenden Ein- und Auslassventile, dadurch gekennzeichnet, dass unterhalb der Lagerstellen (58b, 60b, 58c, 60c) ein biegeweicher Abschnitt vorgesehen ist, der die auf die Versteifungsrippen (66, 67) wirkenden Zugkräfte reduziert, wobei der biegeweiche Abschnitt durch im Zylinderkopfgehäuse (10) angeordnete Durchbrüche (68, 69, 70, 71) gebildet istCylinder head for an internal combustion engine, comprising a cylinder head housing having gas exchange channels, which is provided with bearings for receiving at least one intake and exhaust camshaft, wherein between at least two bearing points of the intake and exhaust camshaft stiffening ribs are arranged, with through holes for receiving cylinder head bolts, and with valve stem guides for the gas exchange channels controlling inlet and outlet valves, characterized in that below the bearings (58 b, 60 b, 58 c, 60 c) a bend soft portion is provided which reduces the tensile forces acting on the stiffening ribs (66, 67), wherein the bendable section by in the cylinder head housing (10) arranged openings (68, 69, 70, 71) is formed
Description
Die Erfindung betrifft einen Zylinderkopf für eine Brennkraftmaschine nach dem Oberbegriff des Anspruchs 1.The invention relates to a cylinder head for an internal combustion engine according to the preamble of claim 1.
Insbesondere bei Motoren mit Vielventiltechnik, beispielsweise mit zwei Ein- und Auslaßventilen pro Zylinder, wird im Zylinderkopfgehäuse entsprechender Bauraum für die den Gaswechsel vollziehenden und kontrollierenden Bauteile benötigt. Beispielsweise ist bei der Verwendung von Tassenstößeln für die Betätigung der Ventile ein entsprechendes Tassenstößelgehäuse notwendig, das zwischen den Lagergassen für die Ein- und Auslaßnockenwelle angeordnet ist. Durch die nichtzentrale Verschraubung des Zylinderkopfgehäuses werden Momente erzeugt, die zu einer Verformung der Nockenwellen-Lagergasse führen.In particular, in engines with multi-valve technology, for example, with two intake and exhaust valves per cylinder, in the cylinder head housing corresponding space for the gas exchange performing and controlling components is required. For example, when using bucket tappets for the actuation of the valves a corresponding bucket tappet housing is necessary, which is arranged between the bearing lanes for the intake and exhaust camshaft. Due to the non-central screw the cylinder head housing moments are generated, which lead to a deformation of the camshaft bearing lane.
In der
Aus der
Es ist daher Aufgabe der Erfindung, ein Zylinderkopf zu entwickeln, bei dem aufgrund der Verschraubung auftretende Verformungen des Zylinderkopfgehäuses, insbesondere im Lagergassenbereich der Nockenwellen, mit einfachen Mitteln und unter Beibehaltung der Bauraumfreiheit im Zylinderkopfgehäuse unterbunden werden.It is therefore an object of the invention to develop a cylinder head, in which occurring due to the screw deformation of the cylinder head housing, especially in the bearing lane area of the camshaft, are prevented by simple means and while maintaining the space in the cylinder head housing.
Die Lösung der Aufgabe erfolgt durch die kennzeichnenden Merkmale des Anspruchs 1. Durch den unterhalb der Lagergassen der Nockenwellen vorgesehenen biegeweichen Bereich verringern sich die von den Versteifungsrippen aufzunehmenden Zugkräfte, so daß die für die Reduzierung der Lagergassenverformung vorgesehenen Versteifungsrippen kleiner dimensioniert werden können. Damit bleibt der für die Aufnahme der Ventilsteuerelemente notwendige Bauraum erhalten. Durch den biegeweichen Abschnitt wird gleichzeitig verhindert, daß sich eine mögliche Verformung der den Brennraum begrenzenden Zylinderkopfgrundplatte auf den Lagerstellenbereich der Nockenwellen überträgt.The solution of the problem is achieved by the characterizing features of claim 1. The provided below the bearing lanes of the camshafts flexural region reduce the tensile forces to be absorbed by the stiffening ribs, so that the stiffening ribs provided for reducing the Lagergassenverformung can be made smaller. This preserves the space required for receiving the valve control elements. The flexurally soft section simultaneously prevents any possible deformation of the cylinder head base plate delimiting the combustion chamber from being transmitted to the bearing area region of the camshafts.
In den Unteransprüchen sind weitere vorteilhafte Ausgestaltungen und Verbesserungen des erfindungsgemäßen Zylinderkopfes enthalten.In the dependent claims further advantageous embodiments and improvements of the cylinder head according to the invention are included.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird nachfolgend näher erläutert.An embodiment of the invention is illustrated in the drawing and will be explained in more detail below.
Es zeigen:Show it:
Das in
Die Verschraubung des Zylinderkopfgehäuses
Stirnseitig am Zylinderkopfgehäuse
Die untere Wand
Zwischen den beiden Lagerstellen
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1999155431 DE19955431B4 (en) | 1999-11-18 | 1999-11-18 | Cylinder head for an internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1999155431 DE19955431B4 (en) | 1999-11-18 | 1999-11-18 | Cylinder head for an internal combustion engine |
Publications (2)
Publication Number | Publication Date |
---|---|
DE19955431A1 DE19955431A1 (en) | 2001-05-23 |
DE19955431B4 true DE19955431B4 (en) | 2013-04-04 |
Family
ID=7929437
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1999155431 Expired - Fee Related DE19955431B4 (en) | 1999-11-18 | 1999-11-18 | Cylinder head for an internal combustion engine |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE19955431B4 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10346430A1 (en) * | 2003-10-07 | 2005-05-19 | Bayerische Motoren Werke Ag | Automotive cylinder head cylinders are separated by partitions with cut-outs or modified profiles to provide partial elasticity Automotive cylinder head |
DE102004015135A1 (en) | 2004-03-27 | 2005-10-13 | Dr.Ing.H.C. F. Porsche Ag | Water-cooled cylinder head for a multi-cylinder internal combustion engine |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2514044C2 (en) * | 1975-03-29 | 1983-03-17 | Klöckner-Humboldt-Deutz AG, 5000 Köln | Cylinder head for reciprocating engines |
DE3513126A1 (en) * | 1985-04-12 | 1986-10-30 | Daimler-Benz Ag, 7000 Stuttgart | LIQUID-COOLED FOUR-VALVE CYLINDER HEAD FOR A MULTI-CYLINDER INTERNAL COMBUSTION ENGINE |
DE3421028C2 (en) * | 1984-06-06 | 1990-01-25 | Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart, De |
-
1999
- 1999-11-18 DE DE1999155431 patent/DE19955431B4/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2514044C2 (en) * | 1975-03-29 | 1983-03-17 | Klöckner-Humboldt-Deutz AG, 5000 Köln | Cylinder head for reciprocating engines |
DE3421028C2 (en) * | 1984-06-06 | 1990-01-25 | Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart, De | |
DE3513126A1 (en) * | 1985-04-12 | 1986-10-30 | Daimler-Benz Ag, 7000 Stuttgart | LIQUID-COOLED FOUR-VALVE CYLINDER HEAD FOR A MULTI-CYLINDER INTERNAL COMBUSTION ENGINE |
Also Published As
Publication number | Publication date |
---|---|
DE19955431A1 (en) | 2001-05-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8120 | Willingness to grant licences paragraph 23 | ||
8110 | Request for examination paragraph 44 | ||
8127 | New person/name/address of the applicant |
Owner name: DR. ING. H.C. F. PORSCHE AKTIENGESELLSCHAFT, 7, DE |
|
8127 | New person/name/address of the applicant |
Owner name: DR. ING. H.C. F. PORSCHE AKTIENGESELLSCHAFT, 7, DE |
|
R016 | Response to examination communication | ||
R016 | Response to examination communication | ||
R016 | Response to examination communication | ||
R018 | Grant decision by examination section/examining division | ||
R020 | Patent grant now final |
Effective date: 20130705 |
|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |