EP1525384B8 - Druckguss-zylinderkurbelgehäuse - Google Patents
Druckguss-zylinderkurbelgehäuseInfo
- Publication number
- EP1525384B8 EP1525384B8 EP03764931A EP03764931A EP1525384B8 EP 1525384 B8 EP1525384 B8 EP 1525384B8 EP 03764931 A EP03764931 A EP 03764931A EP 03764931 A EP03764931 A EP 03764931A EP 1525384 B8 EP1525384 B8 EP 1525384B8
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder
- cast
- die
- row
- liners
- 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 - Lifetime
Links
- 238000001816 cooling Methods 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000004512 die casting Methods 0.000 claims abstract description 15
- 238000007528 sand casting Methods 0.000 claims abstract description 4
- 238000005266 casting Methods 0.000 claims description 11
- 229910045601 alloy Inorganic materials 0.000 claims description 9
- 239000000956 alloy Substances 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 4
- 229910000676 Si alloy Inorganic materials 0.000 claims description 3
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000010120 permanent mold casting Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 229910001018 Cast iron Inorganic materials 0.000 claims 1
- 239000010410 layer Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 229910000789 Aluminium-silicon alloy Inorganic materials 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000007750 plasma spraying Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910001060 Gray iron Inorganic materials 0.000 description 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010285 flame spraying Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 150000003839 salts Chemical group 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000009716 squeeze casting Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 239000002347 wear-protection layer Substances 0.000 description 1
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
- F02F7/00—Casings, e.g. crankcases or frames
- F02F7/0002—Cylinder arrangements
- F02F7/0007—Crankcases of engines with cylinders in line
-
- 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
-
- 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
- F02F2001/106—Cylinders; Cylinder heads having cooling means for liquid cooling using a closed deck, i.e. the water jacket is not open at the block top face
-
- 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
- F02F7/00—Casings, e.g. crankcases or frames
- F02F7/0085—Materials for constructing engines or their parts
- F02F2007/009—Hypereutectic aluminum, e.g. aluminum alloys with high SI content
-
- 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
- F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
- F05C2201/0436—Iron
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49229—Prime mover or fluid pump making
- Y10T29/4927—Cylinder, cylinder head or engine valve sleeve making
Definitions
- the invention relates to a die-cast cylinder crankcase according to the preamble of claim 1 and a method for producing a die-cast cylinder crankcase according to claim 5.
- the cylinder crankcases of large series engines are preferably manufactured in die-cast aluminum.
- cylinder liners are usually inserted into the tool and overmolded. The distances between the cylinder liners partially decrease to less than 3 mm. Narrower webs reduce the rigidity of the cylinder crankcase.
- the object of the invention is to provide a die-cast cylinder crankcase and a method for its production which, compared to the prior art, has improved rigidity and more effective cooling with a small web width between the cylinder liners.
- the object is achieved in a die-cast cylinder crankcase according to claim 1, and in a method for producing a die-cast cylinder crankcase according to claim 5.
- the die-cast cylinder crankcase according to claim 1 is characterized in that it has a number of cylinder liners cast together. Such a series of cylinder liners is referred to in technical jargon as a liner, which is why this term is also used in the following.
- the liner is cast into the cylinder crankcase.
- Die-casting is understood here to mean both die-casting and squeeze-casting, the cylinder crankcase basically being able to consist of all alloys suitable for this, in particular aluminum alloys, but also magnesium alloys.
- the liner is cast in sand or gravity die casting and therefore has the advantage that cavities or undercuts can be represented comparatively easily. Therefore, the liner has an at least partially closed water jacket with different cooling channels. INS in particular, the water jacket is at least partially closed in the direction of a cylinder head side of the cylinder crankcase. This leads to a larger sealing surface on a mounting surface of the cylinder head and to a better seal between the cylinder head and the cylinder crankcase.
- Another advantage of the cylinder crankcase according to the invention is that the webs between the cylinder liners can be provided with cooling channels.
- the distances between them are only between 3 mm and 4 mm. Milling or drilling cooling channels in the land areas between cylinder liners is complex and expensive. Cooling channels in the web areas can already be integrated when using the liners according to the invention.
- the liner can be made of any castable material that meets the tribological and thermal requirements for cylinder liners.
- the liners are preferably made of a gray cast iron material.
- a liner is usually made of an over-eutectic aluminum-silicon alloy or ordinary aluminum casting alloys (standard alloys) ) used.
- the liner is represented by a standard casting alloy based on aluminum instead of a hypereutectic AlSi alloy.
- mold or sand-cast components have a lower porosity.
- the lower porosity makes it easier to apply a tribologically stable layer, preferably a thermal spray layer, and improves its adhesion.
- the spray layer serves as a wear protection layer and cylinder running surface.
- Another advantage of this variant is the more favorable casting properties of standard aluminum alloys.
- Another component of the invention is a method for producing a cylinder crankcase according to claim 5, which comprises the following method steps:
- a liner is manufactured using a casting process known per se (sand or permanent mold casting). The casting takes place using a lost core, which is used to form cooling channels. The liner has an at least partially closed water jacket.
- the liner is then inserted into a die casting tool.
- the bores of the individual cylinder liners of the liner are placed on quills in the die casting tool and thus fixed.
- the die casting tool is then also poured out using a known die casting method.
- the liner is poured into the cylinder crankcase, with the two metal alloys (liner and cylinder crankcase) being at least partially connected.
- FIG. 1 is a plan view of a cylinder crankcase with a liner
- Fig. 2 shows a cross section through a cylinder crankcase with a liner in the region of a cylinder bore
- Fig. 3 is a longitudinal section through a cylinder crankcase with a liner.
- FIG. 1 starting from a cylinder head side 18 (see FIG. 2), a top view of a cylinder crankcase 2 with a liner 4 cast in accordance with the invention is shown.
- the Liner 4 comprises a plurality of cylinder liners 5, which are each separated from one another by web regions 12 and are delimited by the cylinder liners 15.
- the cylinder liners 5 of the liner 4 are cast together in one casting process.
- a water jacket 6 is cast in the outer region 9 of the liner 4.
- the water jacket 6 comprises a plurality of cooling ducts 8, 10, which are usually connected to one another.
- the water jacket 6 of the liner 4 is through transfer openings
- the course of cooling channels 10 in the web area 12 is also shown in dashed lines. Screw holes 16 are used to fasten the cylinder head.
- FIG. 2 The cross section shown in FIG. 2 through the cylinder crankcase 2 and the liner 4 illustrates the course of the largely closed outer cooling channels 8, and the water jacket 14 in the cylinder crankcase is also shown.
- FIG. 3 shows a longitudinal section through a cylinder crankcase 2 with a liner 4.
- the cooling channels 10 are highlighted in the web area 12. These are also largely closed and, as shown in broken lines in FIG. 1, are connected to the cooling channels 8.
- a mold with an integrated sand core is provided.
- the mold has the contour of the liner 4, the sand core forms the later water jacket 6.
- the core can have a minimum width of 1.5 mm.
- an over-eutectic aluminum-silicon alloy for example AlSil5, A1SÜ7 or AlSi9
- AlSil5 an over-eutectic aluminum-silicon alloy
- the liner 4 is removed from the mold, the sand core is removed and the liner 4 is deburred and / or machined if necessary.
- a surface treatment of the liner 4 can optionally be carried out, which can improve the connection to the cylinder crankcase 2. This can include mechanical roughening, such as sandblasting, chemical treatments, or coatings.
- the liner 4 is placed in a die-casting tool on quills.
- a suitable aluminum alloy e.g. B. poured an AlSi9Cu3.
- the liner 4 can be designed closed toward an oil pan side 20. This can be done through a base (not shown) that is already cast on during the manufacture of the liner 4. This measure prevents penetration (injection) of the aluminum melt between the cylinder surfaces 15 and the sleeve during die casting. The postprocessing effort is significantly reduced. Only the bottom, which closes the cylinder liner 5, has to be machined.
- Another advantage of the cylinder crankcase 2 according to the invention is that the individual Cylinder liners increased surface area of the liner 4 leads to a better connection between the cylinder crankcase 2 and the cast part (liner 4). This in turn improves the heat transfer between the thermally highly loaded cylinder running surfaces 15 and the cylinder crankcase 2.
- the integrated design of the liner 4 prevents the cylinder liners from occasionally dropping slightly during engine operation (setting). It also prevents cooling water from getting into the oil circuit, which can occur if there is a gap between the bushing and the encapsulation (cylinder crankcase) for individual bushings.
- the liner is cast in the mold casting by an AISi7Mg alloy. After machining, a layer is applied to the inner surfaces of the cylinder liners by plasma spraying. This layer of a hypereutectic AlSi alloy serves as a cylinder running surface after finishing (fine turning, honing).
- the layer can be applied by all common coating methods.
- Thermal spray coatings such as plasma spraying, arc wire spraying or flame spraying, have proven their worth.
- any wear-resistant material that is tribologically coordinated with the friction partner, a piston ring (and piston shirt) can also be used as the layer material.
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
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10233359 | 2002-07-23 | ||
DE10233359A DE10233359A1 (de) | 2002-07-23 | 2002-07-23 | Druckguss-Zylinderkurbelgehäuse |
PCT/EP2003/006984 WO2004009986A1 (de) | 2002-07-23 | 2003-07-01 | Druckguss-zylinderkurbelgehäuse |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1525384A1 EP1525384A1 (de) | 2005-04-27 |
EP1525384B1 EP1525384B1 (de) | 2007-11-14 |
EP1525384B8 true EP1525384B8 (de) | 2008-01-23 |
Family
ID=30469039
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03764931A Expired - Lifetime EP1525384B8 (de) | 2002-07-23 | 2003-07-01 | Druckguss-zylinderkurbelgehäuse |
Country Status (6)
Country | Link |
---|---|
US (1) | US20060124082A1 (de) |
EP (1) | EP1525384B8 (de) |
CA (1) | CA2492896A1 (de) |
DE (2) | DE10233359A1 (de) |
MX (1) | MXPA05000689A (de) |
WO (1) | WO2004009986A1 (de) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004043640B4 (de) * | 2004-09-07 | 2006-12-14 | Daimlerchrysler Ag | Zylinderkopfdichtung für Leichtmetallkurbelgehäuse |
DE102007007684A1 (de) * | 2007-02-16 | 2008-08-28 | Audi Ag | Verfahren zum Herstellen eines mechanisch bearbeiteten, gegossenen Werkstücks mit mindestens einer maßhaltigen geometrischen Struktur |
DE102007023060A1 (de) | 2007-05-16 | 2008-11-20 | Daimler Ag | Verfahren zur Herstellung eines Zylinderkurbelgehäuses |
DE102007041010A1 (de) * | 2007-08-29 | 2009-03-05 | Mahle International Gmbh | Zylinderkurbelgehäuse für einen Verbrennungsmotor |
DE102008039208A1 (de) | 2008-08-20 | 2009-02-12 | Heppes, Frank, Dipl.-Ing. | Urformkerne zur Herstellung umfangreich konturierter, hinterschnittener Hohlräume in Urformteilen, damit hergestellte Urformteile sowie Verfahren zur Herstellung, Anwendung und Entfernung der Kerne |
US8816460B2 (en) | 2009-04-06 | 2014-08-26 | Nokia Corporation | Image sensor |
DE102010047325B4 (de) | 2010-10-01 | 2021-11-18 | Daimler Ag | Brennkraftmaschine mit einem Zylindergehäuse aus Leichtmetallguss und mit Zylinderlaufbuchsen aus Rauguss |
DE102012006967A1 (de) * | 2012-04-04 | 2013-10-10 | Daimler Ag | Aluminium-Druckgusslegierung für Motorbauteile und Herstellungsverfahren |
CN103541828B (zh) * | 2012-07-17 | 2014-10-08 | 安徽华菱汽车有限公司 | 发动机及其缸套缸体的冷却结构 |
DE102012110258A1 (de) * | 2012-10-26 | 2014-04-30 | Ks Aluminium-Technologie Gmbh | Verfahren zur Herstellung eines Zylinderkurbelgehäuses |
DE102013020835B4 (de) | 2013-08-16 | 2021-11-11 | Daimler Ag | Zylinderkurbelgehäuse für eine Hubkolben-Verbrennungskraftmaschine |
US9528464B2 (en) | 2014-08-11 | 2016-12-27 | Ford Global Technologies, Llc | Bore bridge cooling passage |
US9950449B2 (en) | 2015-03-02 | 2018-04-24 | Ford Global Technologies, Llc | Process and tool for forming a vehicle component |
US9803583B2 (en) | 2015-03-18 | 2017-10-31 | Federal-Mogul Llc | Double wall self-contained liner |
US10174707B2 (en) * | 2017-03-09 | 2019-01-08 | Ford Global Technologies, Llc | Internal combustion engine and method of forming |
DE102017206715A1 (de) | 2017-04-21 | 2018-10-25 | Ford Global Technologies, Llc | Vorrichtung zur gießtechnischen Herstellung eines Zylinderkurbelgehäuses und Herstellungsverfahren |
DE102017206714A1 (de) | 2017-04-21 | 2018-10-25 | Ford Global Technologies, Llc | Vorrichtung zur gießtechnischen Herstellung eines Zylinderkurbelgehäuses und Herstellungsverfahren |
DE202017104327U1 (de) | 2017-04-21 | 2017-08-09 | Ford Global Technologies, Llc | Vorrichtung zur gießtechnischen Herstellung eines Zylinderkurbelgehäuses |
US10781769B2 (en) * | 2018-12-10 | 2020-09-22 | GM Global Technology Operations LLC | Method of manufacturing an engine block |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4446906A (en) * | 1980-11-13 | 1984-05-08 | Ford Motor Company | Method of making a cast aluminum based engine block |
US5000244A (en) * | 1989-12-04 | 1991-03-19 | General Motors Corporation | Lost foam casting of dual alloy engine block |
JP3077452B2 (ja) * | 1993-06-07 | 2000-08-14 | トヨタ自動車株式会社 | 内燃機関のシリンダブロック |
EP0677652B1 (de) * | 1994-03-18 | 1998-12-02 | Yamaha Hatsudoki Kabushiki Kaisha | Zylinderblock ohne Futterung für Maschinen |
DE4409750B4 (de) * | 1994-03-22 | 2006-04-20 | Bayerische Motoren Werke Ag | Zylinderblock einer flüssigkeitsgekühlten Brennkraftmaschine mit einem Magnesium-Gehäuse |
JP3016364B2 (ja) * | 1995-12-04 | 2000-03-06 | トヨタ自動車株式会社 | 内燃機関のシリンダブロック製造方法 |
US6298899B1 (en) * | 1999-07-13 | 2001-10-09 | Ford Global Tech., Inc. | Water jacket core |
DE10019793C1 (de) * | 2000-04-20 | 2001-08-30 | Federal Mogul Friedberg Gmbh | Zylinderlaufbuchse für Verbrennungskraftmaschinen und Herstellungsverfahren |
US6349681B1 (en) * | 2000-05-22 | 2002-02-26 | General Motors Corporation | Cylinder block for internal combustion engine |
-
2002
- 2002-07-23 DE DE10233359A patent/DE10233359A1/de not_active Withdrawn
-
2003
- 2003-07-01 US US10/521,938 patent/US20060124082A1/en not_active Abandoned
- 2003-07-01 WO PCT/EP2003/006984 patent/WO2004009986A1/de active IP Right Grant
- 2003-07-01 MX MXPA05000689A patent/MXPA05000689A/es unknown
- 2003-07-01 CA CA002492896A patent/CA2492896A1/en not_active Abandoned
- 2003-07-01 EP EP03764931A patent/EP1525384B8/de not_active Expired - Lifetime
- 2003-07-01 DE DE50308609T patent/DE50308609D1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CA2492896A1 (en) | 2004-01-29 |
WO2004009986A1 (de) | 2004-01-29 |
US20060124082A1 (en) | 2006-06-15 |
DE50308609D1 (de) | 2007-12-27 |
MXPA05000689A (es) | 2005-04-08 |
EP1525384B1 (de) | 2007-11-14 |
DE10233359A1 (de) | 2004-02-19 |
EP1525384A1 (de) | 2005-04-27 |
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