DE10007360B4 - Method for producing a cylinder head for an internal combustion engine - Google Patents
Method for producing a cylinder head for an internal combustion engine Download PDFInfo
- Publication number
- DE10007360B4 DE10007360B4 DE2000107360 DE10007360A DE10007360B4 DE 10007360 B4 DE10007360 B4 DE 10007360B4 DE 2000107360 DE2000107360 DE 2000107360 DE 10007360 A DE10007360 A DE 10007360A DE 10007360 B4 DE10007360 B4 DE 10007360B4
- Authority
- DE
- Germany
- Prior art keywords
- cylinder head
- combustion chamber
- volume
- excess
- soll
- 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
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
- F02F1/36—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
-
- 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
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/12—Other methods of operation
- F02B2075/125—Direct injection in the combustion chamber for spark ignition engines, i.e. not in pre-combustion chamber
-
- 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
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)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
Verfahren zur Herstellung eines Zylinderkopfes (10) für eine Brennkraftmaschine, insbesondere für einen Ottomotor mit Direkteinspritzung, insbesondere eines Kraftfahrzeuges, dadurch gekennzeichnet, dass der Zylinderkopf (10) kurbelgehäuseseitig mit einem bestimmten Übermaß hergestellt wird, dass das Volumen aller jeweiligen Zylindern zugeordneter Brennräume (18) des Zylinderkopfes (10) und daraus ein Mittelwert VIST bestimmt wird, dass dieser so bestimmte Mittelwert VIST mit einem gewünschten Sollwert VSOLL für das Brennraumvolumen verglichen wird, welcher das brennraumseitige bestimmte Übermaß berücksichtigt, und in Abhängigkeit von diesem Vergleich am Zylinderkopf (10) kurbelgehäuseseitig Material mechanisch mehr oder weniger derart abgetragen wird, dass sich in der Summe für alle Zylinder ein Brennraumvolumen ergibt, welches einem gewünschten Brennraumvolumen möglichst nahe kommt.A method for producing a cylinder head (10) for an internal combustion engine, in particular for a gasoline engine with direct injection, in particular of a motor vehicle, characterized in that the cylinder head (10) crankcase side is made with a certain excess that the volume of all respective cylinders associated combustion chambers (18 ) of the cylinder head (10) and therefrom a mean value V IST is determined that this so determined average value V IST is compared with a desired target value V SOLL for the combustion chamber volume, which takes into account the combustion chamber side specific excess, and in dependence on this comparison on the cylinder head ( 10) crankcase side material is mechanically more or less removed such that in the sum for all cylinders results in a combustion chamber volume, which comes as close as possible to a desired combustion chamber volume.
Description
Die Erfindung betrifft ein Verfahren zur Herstellung eines Zylinderkopfes für eine Brennkraftmaschine, insbesondere für einen Ottomotor mit Direkteinspritzung, insbesondere eines Kraftfahrzeuges, gemäß dem Oberbegriff des Anspruchs 1.The The invention relates to a method for producing a cylinder head for one Internal combustion engine, in particular for a gasoline engine with direct injection, in particular a motor vehicle, according to the preamble of the claim 1.
Bei der Herstellung von Hubkolbenbrennkraftmaschinen ergeben sich aufgrund von Toleranzen im Gießverfahren Abweichungen im Volumen der jeweiligen Zylindern zugeordneten Brennräume des Zylinderkopfes. Dies führt zu entsprechenden Abweichung im gewünschten Volumen bzw. Hubvolumen und des Verdichtungsverhältnisses ε. Beispielsweise bei ε = 11 sind Toleranzen von 0,5 üblich. Bzgl. einer Brennraumtiefe sind hierbei Toleranzen im Bereich von ±0,2 mm hinzunehmen. Dies beeinflusst jedoch die Motorfunktion ungünstig. So steigt ggf. eine Abgastemperatur, eine Emission von Schadstoffen und ein Kraftstoffverbrauch.at the production of reciprocating internal combustion engines arise due to of tolerances in the casting process Deviations in the volume of the respective cylinders associated combustion chambers of the Cylinder head. this leads to to corresponding deviation in the desired volume or displacement and the compression ratio ε. For example at ε = 11 tolerances of 0.5 are common. Concerning. A combustion chamber depth here are tolerances in the range of ± 0.2 mm to accept. However, this adversely affects the engine function. So increases possibly an exhaust gas temperature, an emission of pollutants and fuel consumption.
Die
Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, ein Verfahren der obengenannten Art zur Verfügung zu stellen, bei dem die obengenannten Nachteile überwunden werden und eine möglichst geringe Toleranz für Hubraum, Brennraumtiefe bzw. Verdichtungsverhältnis erzielt wird.Of the The present invention is therefore based on the object, a method of the above type to provide, in which the above-mentioned disadvantages are overcome and a possible low tolerance for Displacement, combustion chamber depth or compression ratio is achieved.
Diese Aufgabe wird erfindungsgemäß durch ein Verfahren der o. g. Art mit den in Anspruch 1 gekennzeichneten Merkmalen gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind in den abhängigen Ansprüchen angegeben.These The object is achieved by a Method of o. Type having the features characterized in claim 1 solved. Advantageous embodiments of the invention are specified in the dependent claims.
Dazu ist es erfindungsgemäß vorgesehen, dass der Zylinderkopf kurbelgehäuseseitig mit einem bestimmten Übermaß hergestellt wird, dass das Volumen aller jeweiligen Zylindern zugeordneter Brennräume des Zylinderkopfes und daraus ein Mittelwert VIST bestimmt wird, dass dieser so bestimmte Mittelwert VIST mit einem gewünschten Sollwert VSOLL für das Brennraumvolumen verglichen wird, welcher das brennraumseitige bestimmte Übermaß berücksichtigt, und in Abhängigkeit von diesem Vergleich am Zylinderkopf kurbelgehäuseseitig Material mechanisch mehr oder weniger derart abgetragen wird, dass sich in der Summe für alle Zylinder ein Brennraumvolumen ergibt, welches einem gewünschten Brennraumvolumen möglichst nahe kommt.For this it is inventively provided that the cylinder head is formed on the crankcase side with a certain excess, that the volume of all the respective cylinders of associated combustion chambers of the cylinder head and from an average value V is determined that the thus determined average value V is provided with a desired value v soll for the combustion chamber volume is compared, which takes into account the combustion chamber side certain excess, and depending on this comparison on the cylinder head crankcase side material is mechanically more or less removed such that the sum for all cylinders results in a combustion chamber volume which comes as close as possible to a desired combustion chamber volume.
Dies hat den Vorteil, dass eine geringe Streuung bzgl. des Verdichtungsverhältnisses bzw. des Hubraumes erzielt wird. In überraschender Weise lässt sich eine Abweichung einer Brennraumtiefe vom Sollwert in einem Bereich von lediglich ±0,05 mm erreichen.This has the advantage that a low dispersion with respect to the compression ratio or the displacement is achieved. In a surprising way can be a deviation of a combustion chamber depth from the nominal value in a range of only ± 0.05 mm to reach.
Zweckmäßigerweise werden die Volumen der einzelnen Zylindern zugeordneten Brennräume des Zylinderkopfes mit einem optischen Verfahren bestimmt. Dies erfolgt bevorzugt in einer Produktionslinie des Zylinderkopfes, wobei ein kurbelgehäuseseitig mechanisch abzutragendes Maß eines jeden Zylinderkopfes an eine entsprechend nachgeordnete Bearbeitungsstation übertragen wird.Conveniently, are the volumes of each cylinder associated combustion chambers of the Cylinder head determined by an optical method. this happens preferably in a production line of the cylinder head, wherein a crankcase side mechanically ablated measure of a each cylinder head transmitted to a corresponding downstream processing station becomes.
In einer bevorzugten Ausführung des Verfahrens wird der Zylinderkopf vor Messung der Brennraumvolumina kurbelgehäuseseitig mit einem Übermaß von 0,5 mm hergestellt. Zweckmäßigerweise wird als Sollwert VSOLL ein gewünschtes Brennraumvolumen unter Berücksichtigung des kurbelgehäuseseitigen Übermaßes des Zylinderkopfes gewählt. Es wird dann lediglich das Übermaß mechanisch abgetragen, wenn die Abweichung des Mittelwertes VIST vom Sollwert VSOLL kleiner als ein vorbestimmter Wert ist. Sofern VIST wesentlich größer bzw. kleiner als VSOLL ist, wird an der Brennraumseite des Zylinderkopfes mehr bzw. weniger als das Übermaß mechanisch abgetragen.In a preferred embodiment of the method, the cylinder head is manufactured on the crankcase side with an oversize of 0.5 mm before measuring the combustion chamber volumes. Conveniently, a desired combustion chamber volume, taking into account the crankcase-side excess of the cylinder head, is selected as desired value V SOLL . It is then only removed the excess mechanical, when the deviation of the average value V from the target value V TARGET is smaller than a predetermined value. If V IST is substantially larger or smaller than V SOLL , more or less than the excess is mechanically removed on the combustion chamber side of the cylinder head.
Weitere Merkmale, Vorteile und vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den abhängigen Ansprüchen, sowie aus der nachstehenden Beschreibung der Erfindung anhand der beigefügten Zeichnung. Diese zeigt in der einzigen Fig. einen Zylinderkopf für eine Hubkolbenbrennkraftmaschine in schematischer Schnittansicht.Further Features, advantages and advantageous embodiments of the invention arise from the dependent ones claims, and from the following description of the invention with reference to the attached Drawing. This shows in the only Fig. A cylinder head for a reciprocating internal combustion engine in a schematic sectional view.
Der
in der einzigen Fig. dargestellte Zylinderkopf
Bei
der Herstellung des Zylinderkopfes
Claims (7)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2000107360 DE10007360B4 (en) | 2000-02-18 | 2000-02-18 | Method for producing a cylinder head for an internal combustion engine |
PCT/EP2001/000925 WO2001061178A1 (en) | 2000-02-18 | 2001-01-29 | Method for producing a cylinder head for an internal combustion engine |
EP01902360A EP1259721A1 (en) | 2000-02-18 | 2001-01-29 | Method for producing a cylinder head for an internal combustion engine |
AU2001230212A AU2001230212A1 (en) | 2000-02-18 | 2001-01-29 | Method for producing a cylinder head for an internal combustion engine |
JP2001560003A JP2003522902A (en) | 2000-02-18 | 2001-01-29 | Method for manufacturing a cylinder head for an internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2000107360 DE10007360B4 (en) | 2000-02-18 | 2000-02-18 | Method for producing a cylinder head for an internal combustion engine |
Publications (2)
Publication Number | Publication Date |
---|---|
DE10007360A1 DE10007360A1 (en) | 2001-08-23 |
DE10007360B4 true DE10007360B4 (en) | 2008-07-31 |
Family
ID=7631380
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2000107360 Expired - Fee Related DE10007360B4 (en) | 2000-02-18 | 2000-02-18 | Method for producing a cylinder head for an internal combustion engine |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1259721A1 (en) |
JP (1) | JP2003522902A (en) |
AU (1) | AU2001230212A1 (en) |
DE (1) | DE10007360B4 (en) |
WO (1) | WO2001061178A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005037735B4 (en) * | 2005-08-05 | 2010-07-01 | Nemak Linz Gmbh | Cylinder head casting blank, cast cylinder head for diesel internal combustion engines and method of making a cylinder head casting blank |
JP6361538B2 (en) * | 2015-03-18 | 2018-07-25 | マツダ株式会社 | Method for adjusting engine combustion chamber volume with thermal barrier film |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4559684A (en) * | 1981-02-27 | 1985-12-24 | Pryor Timothy R | Controlled machining of combustion chambers, gears and other surfaces |
DE4029881A1 (en) * | 1990-09-21 | 1992-04-02 | Porsche Ag | IC engine valve seat ring - avoids projecting into combustion chamber by mounting ring in cylinder head above chamber |
DE19734053A1 (en) * | 1997-08-06 | 1999-02-11 | Alcan Gmbh | Piston or cylinder head coating for IC engine |
DE19813745A1 (en) * | 1997-09-29 | 1999-04-01 | Nissan Diesel Motor Co | Internal combustion engine cylinder head making process |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3143516C2 (en) * | 1981-11-03 | 1983-10-27 | Audi Nsu Auto Union Ag, 7107 Neckarsulm | Method for testing and setting a defined distance between the end-face outer surface of a piston in a reciprocating piston machine and an opposite wall |
DE4040938A1 (en) * | 1990-12-20 | 1992-06-25 | Kloeckner Humboldt Deutz Ag | Machining the connecting surface between cylinder head and block - by using two stages with intermediate heat treatment to prestress surface and thereby avoid distortion during actual working of engine |
DE4436031C2 (en) * | 1994-10-08 | 1998-02-12 | Ford Werke Ag | Method and device for minimizing the shape and tolerance position deviations when machining the combustion chamber of cylinder heads |
US5864777A (en) * | 1997-01-21 | 1999-01-26 | Ford Global Technologies, Inc. | Method of predicting volume of finished combustion chambers from a raw cylinder head casting |
IT1293668B1 (en) * | 1997-08-01 | 1999-03-08 | Fiat Ricerche | INTERNAL COMBUSTION ENGINE WITH COMMANDED IGNITION WITH COMBUSTION CHAMBER EQUIPPED WITH THREE VALVES AND CENTRAL SPARK PLUG. |
-
2000
- 2000-02-18 DE DE2000107360 patent/DE10007360B4/en not_active Expired - Fee Related
-
2001
- 2001-01-29 AU AU2001230212A patent/AU2001230212A1/en not_active Abandoned
- 2001-01-29 EP EP01902360A patent/EP1259721A1/en not_active Withdrawn
- 2001-01-29 WO PCT/EP2001/000925 patent/WO2001061178A1/en not_active Application Discontinuation
- 2001-01-29 JP JP2001560003A patent/JP2003522902A/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4559684A (en) * | 1981-02-27 | 1985-12-24 | Pryor Timothy R | Controlled machining of combustion chambers, gears and other surfaces |
DE4029881A1 (en) * | 1990-09-21 | 1992-04-02 | Porsche Ag | IC engine valve seat ring - avoids projecting into combustion chamber by mounting ring in cylinder head above chamber |
DE19734053A1 (en) * | 1997-08-06 | 1999-02-11 | Alcan Gmbh | Piston or cylinder head coating for IC engine |
DE19813745A1 (en) * | 1997-09-29 | 1999-04-01 | Nissan Diesel Motor Co | Internal combustion engine cylinder head making process |
Non-Patent Citations (1)
Title |
---|
STEIDLE,Hermann: Moderne Konzepte zur Zylinderkopfbearbeitung. In: Maschinenmarkt, Würzburg 102, 1996, 50, S.26-28 * |
Also Published As
Publication number | Publication date |
---|---|
EP1259721A1 (en) | 2002-11-27 |
WO2001061178A1 (en) | 2001-08-23 |
DE10007360A1 (en) | 2001-08-23 |
JP2003522902A (en) | 2003-07-29 |
AU2001230212A1 (en) | 2001-08-27 |
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Legal Events
Date | Code | Title | Description |
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8120 | Willingness to grant licenses paragraph 23 | ||
8110 | Request for examination paragraph 44 | ||
8364 | No opposition during term of opposition | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20130903 |