EP1398491A1 - Zylinder oder Zylinderlaufbüchse für Verbrennungsmotoren; Verfahren zur Herstellung eines Zylinders oder einer Zylinderlaufbüchse - Google Patents
Zylinder oder Zylinderlaufbüchse für Verbrennungsmotoren; Verfahren zur Herstellung eines Zylinders oder einer Zylinderlaufbüchse Download PDFInfo
- Publication number
- EP1398491A1 EP1398491A1 EP02020209A EP02020209A EP1398491A1 EP 1398491 A1 EP1398491 A1 EP 1398491A1 EP 02020209 A EP02020209 A EP 02020209A EP 02020209 A EP02020209 A EP 02020209A EP 1398491 A1 EP1398491 A1 EP 1398491A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder
- alloy
- silicon
- liner
- cylinder liner
- 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.)
- Withdrawn
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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
- F02F1/02—Cylinders; Cylinder heads having cooling means
- F02F1/10—Cylinders; Cylinder heads having cooling means for liquid cooling
- F02F1/108—Siamese-type cylinders, i.e. cylinders cast together
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- 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
- F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
- F02B75/18—Multi-cylinder engines
- F02B2075/1804—Number of cylinders
- F02B2075/1812—Number of cylinders three
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/02—Light metals
- F05C2201/021—Aluminium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/04—Heavy metals
- F05C2201/0469—Other heavy metals
- F05C2201/0475—Copper or alloys thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2203/00—Non-metallic inorganic materials
- F05C2203/04—Phosphor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2203/00—Non-metallic inorganic materials
- F05C2203/06—Silicon
Definitions
- the invention relates to cylinders or cylinder liners for internal combustion engines, which is made of hypereutectic aluminum-silicon alloy in the die casting process are manufactured.
- the invention further relates to a method of manufacture a cylinder or cylinder liner made of hypereutectic aluminum-silicon alloy.
- Modern internal combustion engines in particular engines for motor vehicles and Small machines, increasingly consist mainly of light metal, especially aluminum.
- the complete cylinder including crankcase can be made from a single Die-cast part exist.
- larger engines for example for automobiles, can be single cylinder liners or a combination of several liners inserted or cast into the engine block cast from light metal his.
- the cylinder running surfaces must be specially prepared to work optimally with the piston or pistons.
- cylinders or cylinder liners made of hypereutectic Cast aluminum-silicon alloy, so they can solidify the primary silicon crystals deposited on the cylinder running surfaces exposed by mechanical reworking or etching. From Silicon crystals protruding from the cylinder surface then form an extreme resistant slideway for the piston or for the piston rings.
- DE 44 34 576 describes cylinder blocks or composite cast cylinders made of hypereutectic Aluminum-silicon alloy for internal combustion engines with cast sleeve made of hypereutectic aluminum-silicon alloy, which is made by centrifugal casting or die-cast.
- the liner becomes an aluminum-silicon alloy of type A1 Si17 Cu4 Mg, A1 Si20-25 Cu4 Mg, A1 Si30-40, Al Si17 Cu4 or A1 Si17 Cu4 Ni3 Mn Mg suggested.
- US 5,303,682 describes cylinder liners made of hypereutectic aluminum-silicon alloy are produced by centrifugal casting.
- Cylinder or cylinder liner made of hypereutectic aluminum-silicon alloy have not previously been produced using the die casting process.
- the high Requirements of modern high-performance internal combustion engines regarding Running properties and wear resistance could not be met.
- Other Manufacturing processes such. B. gravity die casting, centrifugal casting, powder metallurgical Processes or thermal spraying are considerably more expensive.
- the present invention is therefore based on the technical problem of cylinders or cylinder liners made of hypereutectic aluminum-silicon alloy in the die casting process so that the high requirements are more modern Light metal internal combustion engines are met.
- the hypereutectic aluminum-silicon alloy has a silicon content between 18 and 20% as well as a relatively high proportion of phosphorus, between 200 and 500 ppm. It has been shown that such Alloy cylinders or cylinder liners inexpensively in the die casting process can be produced, which can be achieved through optimal integration and Mark the distribution of the primary silicon crystals in the basic aluminum matrix and thus meet the requirements.
- the relatively high proportion of phosphorus in the alloy melt is responsible for the uniform Distribution of the primary silicon crystals.
- the alloy is approximately 18.5% Contains silicon and / or the phosphorus content is between 350 and 450 ppm.
- the alloy advantageously also contains 3-5%, preferably 4% copper as well as sodium, calcium and strontium with a maximum proportion of each 10 ppm and antimony up to a maximum of 25 ppm.
- the aluminum-silicon alloy of the proposed Type can be an average grain size of the primary excreted from the melt Achieve silicon crystals between 20 and 50 ⁇ m. After drilling and Honing is the degree of destruction of the silicon crystals in the cylinder surface less than 50%. Cylinders or cylinder liners that meet these specifications meet, are characterized by outstanding running properties and very high wear resistance out.
- the object is further achieved by the specified in claim 7 Process in which an aluminum-silicon alloy with a Silicon content between 18 and 20% melted and so much phosphorus is added that the alloy melt has a content between 200 and 500 ppm phosphorus.
- the molten alloy is then in a mold is injected at a temperature of at least 720 ° C. In the The casting mold is allowed to solidify under a pressure of 500 to 1200 bar.
- the cooled casting is at the end of a machining process or subjected to an etching process in the area of the cylinder running surfaces, whereby the primary silicon crystals deposited from the melt are exposed.
- the aluminum phosphides formed in the molten alloy tend to conglomerate and / or after in the liquid melt down below. Even distribution of the phosphides is important. Care must be taken to ensure that the phosphides in the Remain melt evenly distributed.
- the necessary homogenization can, for example, by an agitator in the holding / pre-casting furnace can be achieved.
- the composite shown by way of example in FIG. 1 consists of three Cylinder liners 1, which are arranged in series and by webs 2 together are connected. Such a combination of cylinder liners 1 is in one Light metal engine block cast in or retrofitted.
- the cylinder liner 1 is made as a thin-walled die-cast part. It consists of an aluminum-silicon alloy of the type A1 Si18.5 Cu4 with a phosphorus content of approx. 400 ppm.
- Fig. 2 b can be seen how the individual primary silicon crystals 3 in the Aluminum matrix are embedded. In the area of the ground tread 5 the primary silicon crystals are fully or partially exposed. The exposed Silicon crystals that protrude from the aluminum matrix 4 form the cylinder raceway, on which the piston (not shown) slides up and down.
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)
Abstract
Description
- Fig. 1
- einen Verbund von Zylinderlaufbüchsen, in einer vereinfachten perspektivischen Ansicht;
- Fig. 2 a
- eine der Zylinderlaufbüchsen von Fig. 1, in einem Vertikalschnitt;
- Fig. 2 b
- den Ausschnitt X aus dem Schnittbild von Fig. 2 a, in stark vergrößertem Maßstab.
- 1
- Zylinderlaufbüchse
- 2
- Steg
- 3
- Primär-Siliziumkristalle
- 4
- Aluminium-Matrix
- 5
- Zylinderlauffläche
Claims (10)
- Zylinder oder Zylinderlaufbüchse für Verbrennungsmotoren, aus übereutektischer Aluminium-Silizium-Legierung im Druckgussverfahren hergestellt, dadurch gekennzeichnet, dass die Legierung 18 - 20 % Silizium und 200-500 ppm Phophor enthält.
- Zylinder oder Zylinderlaufbüchse nach Anspruch 1, dadurch gekennzeichnet, dass die Legierung ungefähr 18,5 % Silizium enthält.
- Zylinder oder Zylinderlaufbüchse nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Legierung 350 - 450 ppm Phosphor enthält.
- Zylinder oder Zylinderlaufbüchse nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Legierung 3 - 5 % Kupfer enthält.
- Zylinder oder Zylinderlaufbüchse nach Anspruch 4, dadurch gekennzeichnet, dass die Legierung 4 % Kupfer enthält.
- Zylinder oder Zylinderlaufbüchse nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet , dass die ausgeschiedenen Primär-Siliziumkristalle (3) eine mittlere Korngröße von 20 - 50 µm haben.
- Verfahren zur Herstellung eines Zylinders oder einer Zylinderlaufbüchse aus übereutektischer Aluminium-Silizium-Legierung, umfassend die Schritte:Aufschmelzen einer Legierung des Typs A1 Si18-20;Zugabe von Phosphor, so dass die Legierungsschmelze einen Gehalt von 200-500 pm Phosphor aufweist;Einspritzen der geschmolzenen Legierung in eine Gussform bei einer Temperatur von mindestens 720 ° C;Erstarrenlassen der Legierung unter einem Druck von 500 - 1200 bar;
- Verfahren nach Anspruch 7, dadurch gekennzeichnet, dass die Legierung ungefähr 18,5 % Silizium enthält
- Verfahren nach Anspruch 8, dadurch gekennzeichnet, dass der Legierung 350 - 450 ppm Phosphor zugesetzt werden.
- Verfahren nach einem der Ansprüche 7 bis 9, dadurch gekennzeichnet, dass die geschmolzene Legierung homogenisiert wird.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02020209A EP1398491A1 (de) | 2002-09-10 | 2002-09-10 | Zylinder oder Zylinderlaufbüchse für Verbrennungsmotoren; Verfahren zur Herstellung eines Zylinders oder einer Zylinderlaufbüchse |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02020209A EP1398491A1 (de) | 2002-09-10 | 2002-09-10 | Zylinder oder Zylinderlaufbüchse für Verbrennungsmotoren; Verfahren zur Herstellung eines Zylinders oder einer Zylinderlaufbüchse |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1398491A1 true EP1398491A1 (de) | 2004-03-17 |
Family
ID=31725371
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02020209A Withdrawn EP1398491A1 (de) | 2002-09-10 | 2002-09-10 | Zylinder oder Zylinderlaufbüchse für Verbrennungsmotoren; Verfahren zur Herstellung eines Zylinders oder einer Zylinderlaufbüchse |
Country Status (1)
Country | Link |
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EP (1) | EP1398491A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9970385B2 (en) | 2015-05-18 | 2018-05-15 | Ford Global Technologies, Llc | Composite cylinder block for an engine |
US11471905B1 (en) * | 2021-09-23 | 2022-10-18 | Apackaging Group Llc | All plastic airless pump dispenser |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5253625A (en) * | 1992-10-07 | 1993-10-19 | Brunswick Corporation | Internal combustion engine having a hypereutectic aluminum-silicon block and aluminum-copper pistons |
US5303682A (en) | 1991-10-17 | 1994-04-19 | Brunswick Corporation | Cylinder bore liner and method of making the same |
EP0672760A1 (de) * | 1994-03-16 | 1995-09-20 | Nippon Light Metal Co., Ltd. | Verschliessfeste Gusslegierung aus Aluminium und Verfahren zur Herstellung |
DE4434576A1 (de) | 1994-08-09 | 1996-02-15 | Ks Aluminium Technologie Ag | Verbundgußzylinder oder -zylinderblock |
US6261390B1 (en) * | 2000-05-15 | 2001-07-17 | Hsien-Yang Yeh | Process for nodulizing silicon in casting aluminum silicon alloys |
US20010010242A1 (en) * | 1998-09-08 | 2001-08-02 | United States Of America As Represented By The National Aeronautics And Space Administration | Process for producing a cast article from a hypereutectic aluminum-silicon alloy |
US6309480B1 (en) * | 1994-10-28 | 2001-10-30 | Daimlerchrysler Ag | Cylinder liner comprising a supereutectic aluminum/silicon alloy for sealing into a crankcase of a reciprocating piston engine |
-
2002
- 2002-09-10 EP EP02020209A patent/EP1398491A1/de not_active Withdrawn
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5303682A (en) | 1991-10-17 | 1994-04-19 | Brunswick Corporation | Cylinder bore liner and method of making the same |
US5253625A (en) * | 1992-10-07 | 1993-10-19 | Brunswick Corporation | Internal combustion engine having a hypereutectic aluminum-silicon block and aluminum-copper pistons |
EP0672760A1 (de) * | 1994-03-16 | 1995-09-20 | Nippon Light Metal Co., Ltd. | Verschliessfeste Gusslegierung aus Aluminium und Verfahren zur Herstellung |
DE4434576A1 (de) | 1994-08-09 | 1996-02-15 | Ks Aluminium Technologie Ag | Verbundgußzylinder oder -zylinderblock |
US6309480B1 (en) * | 1994-10-28 | 2001-10-30 | Daimlerchrysler Ag | Cylinder liner comprising a supereutectic aluminum/silicon alloy for sealing into a crankcase of a reciprocating piston engine |
US20010010242A1 (en) * | 1998-09-08 | 2001-08-02 | United States Of America As Represented By The National Aeronautics And Space Administration | Process for producing a cast article from a hypereutectic aluminum-silicon alloy |
US6261390B1 (en) * | 2000-05-15 | 2001-07-17 | Hsien-Yang Yeh | Process for nodulizing silicon in casting aluminum silicon alloys |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9970385B2 (en) | 2015-05-18 | 2018-05-15 | Ford Global Technologies, Llc | Composite cylinder block for an engine |
US11471905B1 (en) * | 2021-09-23 | 2022-10-18 | Apackaging Group Llc | All plastic airless pump dispenser |
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