EP1002602B1 - Vorrichtung und Verfahren für die Herstellung eines Motorblocks - Google Patents
Vorrichtung und Verfahren für die Herstellung eines Motorblocks Download PDFInfo
- Publication number
- EP1002602B1 EP1002602B1 EP99110195A EP99110195A EP1002602B1 EP 1002602 B1 EP1002602 B1 EP 1002602B1 EP 99110195 A EP99110195 A EP 99110195A EP 99110195 A EP99110195 A EP 99110195A EP 1002602 B1 EP1002602 B1 EP 1002602B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- liner
- seat
- seat surfaces
- cylinder liners
- cylinder
- 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
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/0009—Cylinders, pistons
Definitions
- the invention relates to a device for producing an engine block, with the composite with casting material included in a mold, each held on a seat Cylinder liners, the seat having seating surfaces engaging at the ends of the sleeve, and a corresponding method for the production of an engine block.
- the mold mentioned at the outset is therefore partly due to the mold cavity of the mold adjacent cylinder liners formed, which after solidification of the casting material are integrated in the engine block and detached from the mold during demolding.
- the liners are preheated, preferably inductively. In doing so, and to a lesser extent even when pouring them in later, they expand, which results in an undesirable mobility of the cylinder liners in their seats the consequence that the liners provided by their in the engine block manufactured Position may differ. Both undesirable parallel shifts occur inclinations of the sleeve axis.
- the device achieving this object according to the invention is characterized in that that the seats are conical in such a way that the bush ends in the event of thermal expansion of the cylinder liners in preparation and during casting remain in contact with the seats.
- the independent claims 1 and 11 are 2-part version delimited from US5771955 (or US5365997).
- the invention ensures that when the liner expands thermally regardless of the state of expansion with their ends always against the conical seats which means that in addition to sealing against liquid casting material, centering the liner is guaranteed.
- the sleeve axis can neither move in parallel still tend.
- tan ⁇ l / d
- d 2r belongs to a length l Rifle diameter called.
- the cylinder liners have the Inclined conical end surfaces. Are advantageous by such matched Seat and sleeve end surfaces formed guides that improve the centering effect. By adapting the surfaces to each other relatively easily can slide during the casting process, the mold by the thermal expansion of the Liners are not damaged.
- the end surfaces can over the seat surfaces protrude beyond, whereby a ring undercut is formed in each case, the can be filled through the casting material and for a particularly tight integration of the Liner in the casting material.
- Aluminum or an aluminum alloy are preferably used as the casting material for the block and as material for the liner cast iron aluminum or an aluminum alloy into consideration.
- the cylinder liners can be provided on the outside with a profile through which both axial displacements and rotations are made more difficult and the liners so that they are particularly firmly embedded in the casting material.
- a coating can also be provided through which a metallic connection between the liners and the casting material.
- a coating could e.g. consist of AlSi5, AlSi9 or Zn.
- parts 1 to 4 of a casting mold which can be joined together are provided with the reference numerals Manufacture of a multi-cylinder engine block called.
- the molds consist of sand, to which a synthetic resin binder has been added.
- part of a cylinder liner 5 is visible for one of the cylinders. From Gray cast iron existing cylinder liner 5 forms another part of the casting mold. Corresponding it borders with its outer surface on a mold cavity 6 to be poured, which is otherwise limited by the mold parts 1 to 4 mentioned.
- the mold cavity 6 includes the most hatched areas in Figures 1 and 2.
- Burn-out domes 7, 8 and 9 extend in the mold cavity 6, one at the Mandrel 9 adjacent, double hatched area for removing the casting material in the Postprocessing is provided.
- the mold part 2 comprises a slightly conical dome 12 on which the cylinder liner 5 sits on.
- the dome 12 has a lateral surface facing the inside of the sleeve 11 on.
- Seating surfaces 13 and 14 form a seat for the cylinder liner 5, the conical Seat 14 on the mold part 1 and the conical seat 13 on the mold part 2 is shaped.
- the mandrel 12 of the mold part 2 extends into a to the cylinder liner 5 coaxial recess 15.
- the reference numeral 16 is a core arranged in the mold cavity 6 for the formation a coolant cavity.
- the reference number 17 indicates an area which like the area 10 for removing casting material by machining post-processing is provided. Also a part of the cylinder liners facing the mandrel 12 5 will be removed later.
- the liner 5 has at its ends next to each on the seat surfaces 13 and 14 adapted conical surfaces on a gradation 18 to Establishing a firm connection between the casting material and the cylinder liner contributes and in particular counteracts axial displacements of the liner.
- the mentioned conical surfaces could form over the conical seats protrude annular undercut that can be filled with casting material.
- the mold is made by assembling the mold parts 1 to 4 and the cylinder liner 5 assembled, wherein the mold cavity 6 is formed.
- the to the mold cavity 6 adjacent cylinder liner 5 is immobile in its through the conical seats 13 and 14 formed seat held.
- the liners are placed on an induction heater (not shown) heated up, causing them to expand.
- the inside of the liner is removed with this expansion 5 from the jacket seat surface 11 of the dors 12 by the amount ⁇ r. i.e. the inner radius r the box grows by ⁇ r. Simultaneously with this expansion of the sleeve 5, the Length l of the sleeve 5 on its inner radius by the amount ⁇ l1 + ⁇ l2.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
- Fig. 1
- eine Teilschnittansicht einer erfindungsgemäßen Gießform,
- Fig. 2
- ein Detail der Teilschnittansicht von Fig. 1,
- Fig. 3
- eine Ansicht zur Erläuterung der Vorgänge bei der Wärmeausdehnung einer in die Gießform von Fig. 1 einbezogenen Zylinderlaufbüchse, und
- Fig. 4
- eine der Fig. 3 entsprechende Ansicht zur Erläuterung der Vorgänge bei der Wärmeausdehnung einer Zylinderlaufbüchse in einer Gießform gemäß einem weiteren Ausführungsbeispiel nach der vorliegenden Erfindung.
Claims (11)
- Vorrichtung für die Herstellung eines Motorblocks mit zum Verbund mit Gussmaterial in eine Gießform einbezogenen, jeweils an einem Sitz gehaltenen Zylinderlaufbüchsen (5), dadurch gekennzeichnet, daß der Sitz für eine Zylinderlaufbüchse (5) jeweils zwei Sitzflächen (13,14) aufweist, die an gegenüberliegenden Enden der Zylinderlaufbüchsen (5) angreifen, wobei die Sitzflächen (13,14) konisch mit einem Neigungswinkel zur Büchsenquerschnittsebene derart ausgebildet sind, daß die Büchsenenden bei Wärmeausdehnung der Zylinderlaufbüchsen (5) in Vorbereitung und während des Gießens in Anlage gegen die Sitzflächen (13,14) verbleiben.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Neigungswinkel α1 bzw. α2 der Sitzflächen (13, 14) die Bedingung tan α1 + tan α2 = l/r erfüllt, worin l die sich zwischen Angriffspunkten an den Sitzflächen (13, 14) erstreckende Büchsenlänge und r den zugehörigen Radius bezeichnen.
- Vorrichtung nach Anspruch 2, dadurch gekennzeichnet , daß die Winkel α1 und α2 gleich groß sind, so daß gilt: tan α1 = l/d, worin d einen zur Büchsenlänge l zugehörigen Durchmesser bezeichnet und α gleich α1 bzw. α2 ist.
- Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Zylinderlaufbüchsen entsprechend den Sitzflächen (13, 14) geneigte konische Endflächen aufweisen.
- Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß die Endflächen unter Bildung einer durch das Gußmaterial ausfüllbaren Ringhinterschneidung über die Sitzflächen hinaus vorstehen.
- Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Gußmaterial Aluminium oder eine Aluminiumlegierung ist.
- Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß das Büchsenmaterial Grauguß, Aluminium oder eine Aluminiumlegierung ist.
- Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Zylinderlaufbüchsen außenseitig profiliert sind.
- Vorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Zylinderlaufbüchsen außenseitig eine Beschichtung zur Herstellung einer metallischen Verbindung zwischen den Laufbüchsen und dem Gußmaterial aufweist.
- Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, daß die Beschichtung AlSi5, AlSi9 oder/und Zn aufweist.
- Verfahren für die Herstellung eines Motorblocks, wobei zum Verbund mit Gußmaterial in eine Gießform für den Motorblock Zylinderlaufbüchsen (5) einbezogen und an einem Sitz gehaltert werden, dadurch gekennzeichnet, daß an dem Sitz für eine Zylinderlaufbüchse (5) jeweils zwei Sitzflächen (13,14) gebildet werden, die an gegenüberliegenden Enden der Zylinderlaufbüchsen (5) angreifen, wobei die Sitzflächen (13, 14) konisch mit einem Neigungswinkel zur Büchsenquerschnittsebene derart ausgebildet werden, daß die Büchsenenden bei Wärmeausdehnung der Zylinderlaufbüchsen (5) in Vorbereitung und während des Gießens in Anlage gegen die Sitzflächen verbleiben.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SI9930710T SI1002602T1 (en) | 1998-11-21 | 1999-05-26 | Device and method for the fabrication of an engine block |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853803 | 1998-11-21 | ||
DE19853803A DE19853803C1 (de) | 1998-11-21 | 1998-11-21 | Vorrichtung und Verfahren für die Herstellung eines Motorblocks |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1002602A1 EP1002602A1 (de) | 2000-05-24 |
EP1002602B1 true EP1002602B1 (de) | 2004-09-29 |
Family
ID=7888595
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99110195A Expired - Lifetime EP1002602B1 (de) | 1998-11-21 | 1999-05-26 | Vorrichtung und Verfahren für die Herstellung eines Motorblocks |
Country Status (7)
Country | Link |
---|---|
US (1) | US6363995B1 (de) |
EP (1) | EP1002602B1 (de) |
AT (1) | ATE277706T1 (de) |
DE (1) | DE19853803C1 (de) |
DK (1) | DK1002602T3 (de) |
ES (1) | ES2230767T3 (de) |
SI (1) | SI1002602T1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004047841A1 (de) * | 2004-09-29 | 2006-04-20 | Hydro Aluminium Alucast Gmbh | Verfahren zum Herstellen von Gussteilen und Insert für Gussteile |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6527039B2 (en) | 2001-06-11 | 2003-03-04 | General Motors Corporation | Casting of engine blocks |
US6527040B2 (en) * | 2001-06-11 | 2003-03-04 | General Motors Corporation | Casting of engine blocks |
US6615901B2 (en) | 2001-06-11 | 2003-09-09 | General Motors Corporation | Casting of engine blocks |
US6598655B2 (en) | 2001-06-11 | 2003-07-29 | General Motors Corporation | Casting of engine blocks |
US6533020B2 (en) | 2001-06-11 | 2003-03-18 | General Motors Corporation | Casting of engine blocks |
DE10153721C5 (de) | 2001-10-31 | 2011-04-28 | Daimler Ag | Gießwerkzeug zur Herstellung eines Zylinderkurbelgehäuses |
JP2004098147A (ja) * | 2002-09-11 | 2004-04-02 | Honda Motor Co Ltd | スリーブ付きシリンダブロックの製造方法 |
JP4162005B2 (ja) * | 2003-07-07 | 2008-10-08 | 三菱自動車工業株式会社 | シリンダライナ鋳込みシリンダブロックの構造、シリンダブロックの製造方法、および同方法に用いられる鋳込み用シリンダライナ |
DE10334855B3 (de) * | 2003-07-29 | 2004-12-09 | Hottinger Maschinenbau Gmbh | Verfahren und Vorrichtung zur Positionierung metallischer Teile in oder an Gießereikernen und Gießformen |
DE10360739B4 (de) | 2003-12-23 | 2007-10-31 | Daimlerchrysler Ag | Zylinderkurbelgehäuse mit Zylinderlaufbuchse |
US7104307B2 (en) * | 2004-02-20 | 2006-09-12 | General Motors Corporation | Casting mold for engine block |
US7204293B2 (en) * | 2004-02-20 | 2007-04-17 | Gm Global Technology Operations, Inc. | Liner seat design for a foundry mold with integrated bore liner and barrel core features |
US7896600B2 (en) * | 2006-06-22 | 2011-03-01 | Honeywell International Inc. | Fastener having controllably variable preload and method of forming same |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1247477A (fr) * | 1958-11-26 | 1960-12-02 | Perfect Circle Corp | Structure composite pour tambours de freins et pour blocs cylindres ou autres structures bimétalliques et leur procédé de fabrication |
US3165983A (en) * | 1961-09-22 | 1965-01-19 | Reynolds Metals Co | Cylinder block constructions and methods and apparatus for making same or the like |
DE3419979C2 (de) * | 1984-05-29 | 1986-04-17 | Fritz Winter, Eisengießerei oHG, 3570 Stadtallendorf | Gießform für Zylinderblöcke von Verbrennungsmotoren |
US4757857A (en) | 1985-12-18 | 1988-07-19 | Fritz Winter Eisengiesserei O.H.G. | Mold for casting cylinder blocks of combustion engines |
MX9204697A (es) * | 1991-09-12 | 1993-03-01 | Ford Motor Co | Revestimientos para cilindros a base de hierro moldeado in situ. |
US5179994A (en) * | 1992-01-16 | 1993-01-19 | Cmi International, Inc. | Method of eliminating porosity defects within aluminum cylinder blocks having cast-in-place metallurgically bonded cylinder liners |
US5361823A (en) * | 1992-07-27 | 1994-11-08 | Cmi International, Inc. | Casting core and method for cast-in-place attachment of a cylinder liner to a cylinder block |
US5365997A (en) * | 1992-11-06 | 1994-11-22 | Ford Motor Company | Method for preparing an engine block casting having cylinder bore liners |
DE4442453A1 (de) * | 1994-11-29 | 1996-05-30 | Bayerische Motoren Werke Ag | Gießverfahren für ein Bauteil, insbesondere aus Leichtmetall |
DE19533529C2 (de) | 1995-09-11 | 2001-10-11 | Vaw Alucast Gmbh | Verfahren zum Gießen eines Motorblockes aus Aluminium |
DE19755557C1 (de) * | 1997-12-13 | 1999-02-04 | Vaw Alucast Gmbh | Gießform zur Herstellung eines Motorblocks |
-
1998
- 1998-11-21 DE DE19853803A patent/DE19853803C1/de not_active Expired - Lifetime
-
1999
- 1999-05-26 EP EP99110195A patent/EP1002602B1/de not_active Expired - Lifetime
- 1999-05-26 ES ES99110195T patent/ES2230767T3/es not_active Expired - Lifetime
- 1999-05-26 DK DK99110195T patent/DK1002602T3/da active
- 1999-05-26 AT AT99110195T patent/ATE277706T1/de not_active IP Right Cessation
- 1999-05-26 SI SI9930710T patent/SI1002602T1/xx unknown
- 1999-11-12 US US09/438,636 patent/US6363995B1/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004047841A1 (de) * | 2004-09-29 | 2006-04-20 | Hydro Aluminium Alucast Gmbh | Verfahren zum Herstellen von Gussteilen und Insert für Gussteile |
Also Published As
Publication number | Publication date |
---|---|
DE19853803C1 (de) | 2000-03-30 |
DK1002602T3 (da) | 2005-01-24 |
ATE277706T1 (de) | 2004-10-15 |
SI1002602T1 (en) | 2005-04-30 |
ES2230767T3 (es) | 2005-05-01 |
EP1002602A1 (de) | 2000-05-24 |
US6363995B1 (en) | 2002-04-02 |
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