EP1002602B1 - Dispositif et procédé pour la fabrication d'un bloc moteur - Google Patents

Dispositif et procédé pour la fabrication d'un bloc moteur Download PDF

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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
Application number
EP99110195A
Other languages
German (de)
English (en)
Other versions
EP1002602A1 (fr
Inventor
Matthias Baranzke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nemak Dillingen GmbH
Original Assignee
Hydro Aluminium Alucast GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hydro Aluminium Alucast GmbH filed Critical Hydro Aluminium Alucast GmbH
Priority to SI9930710T priority Critical patent/SI1002602T1/xx
Publication of EP1002602A1 publication Critical patent/EP1002602A1/fr
Application granted granted Critical
Publication of EP1002602B1 publication Critical patent/EP1002602B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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)

Claims (11)

  1. Dispositif destiné à la fabrication d'un bloc-moteur présentant des chemises de cylindre (5), chacune étant maintenue dans un logement, insérées dans un moule pour la liaison avec un matériau de coulée introduit dans un moule, caractérisé en ce que le logement destiné à une chemise de cylindre (5) présente à chaque fois deux surfaces d'appui (13, 14) qui sont en contact avec les extrémités opposées des chemises de cylindre (5), moyennant quoi les surfaces d'appui (13, 14) sont de forme conique avec un angle d'inclinaison par rapport au plan transversal des chemises de telle sorte que les extrémités des chemises, en cas de dilatation thermique des chemises de cylindre (5), lors de la préparation et pendant la coulée, restent en position contre les surfaces d'appui (13, 14).
  2. Dispositif selon la revendication 1, caractérisé en ce que l'angle d'inclinaison α1 ou α2 des surfaces d'appui (13, 14) remplit la condition tan α1 + tan α2 = l/r, où l représente la longueur des chemises s'étendant entre les points d'attaque au niveau des surfaces d'appui (13, 14) et r représente le rayon correspondant.
  3. Dispositif selon la revendication 2, caractérisé en ce que les angles α1 et α2 sont égaux, de telle sorte que : tan α1 = l/d, où d représente un diamètre correspondant à la longueur de chemise l et α est égal à α1 ou α2.
  4. Dispositif selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les chemises de cylindre présentent des surfaces d'extrémité coniques inclinées suivant les surfaces d'appui (13, 14).
  5. Dispositif selon la revendication 4, caractérisé en ce que les surfaces d'extrémité dépassent sur les surfaces d'appui en formant une contre-dépouille annulaire remplissable par le matériau de coulée.
  6. Dispositif selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le matériau de coulée est de l'aluminium ou un alliage d'aluminium.
  7. Dispositif selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le matériau des chemises est de la fonte grise, de l'aluminium ou un alliage d'aluminium.
  8. Dispositif selon l'une quelconque des revendications 1 à 7, caractérisé en ce que les chemises de cylindre sont profilées sur les côtés extérieurs.
  9. Dispositif selon l'une quelconque des revendications 1 à 8, caractérisé en ce que les chemises de cylindre présentent sur les côtés extérieurs un revêtement pour l'établissement d'une liaison métallique entre les chemises et le matériau de coulée.
  10. Dispositif selon la revendication 4, caractérisé en ce que le revêtement comprend AlSi5, AlSi9 et/ou Zn.
  11. Procédé destiné à la fabrication d'un bloc-moteur, moyennant quoi des chemises de cylindre (5) pour le bloc-moteur sont insérées dans un moule pour la liaison avec un matériau de coulée et sont maintenues dans un logement, caractérisé en ce que deux surfaces d'appui (13, 14) sont formées respectivement au niveau du logement pour une chemise de cylindre (5), lesquelles surfaces d'appui sont en contact avec les extrémités opposées des chemises de cylindre (5), moyennant quoi les surfaces d'appui (13, 14) sont de forme conique avec un angle d'inclinaison par rapport au plan transversal des chemises de telle sorte que les extrémités des chemises, en cas de dilatation thermique des chemises de cylindre (5), lors de la préparation et pendant la coulée, restent en position contre les surfaces d'appui.
EP99110195A 1998-11-21 1999-05-26 Dispositif et procédé pour la fabrication d'un bloc moteur Expired - Lifetime EP1002602B1 (fr)

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
DE19853803A DE19853803C1 (de) 1998-11-21 1998-11-21 Vorrichtung und Verfahren für die Herstellung eines Motorblocks
DE19853803 1998-11-21

Publications (2)

Publication Number Publication Date
EP1002602A1 EP1002602A1 (fr) 2000-05-24
EP1002602B1 true EP1002602B1 (fr) 2004-09-29

Family

ID=7888595

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99110195A Expired - Lifetime EP1002602B1 (fr) 1998-11-21 1999-05-26 Dispositif et procédé pour la fabrication d'un bloc moteur

Country Status (7)

Country Link
US (1) US6363995B1 (fr)
EP (1) EP1002602B1 (fr)
AT (1) ATE277706T1 (fr)
DE (1) DE19853803C1 (fr)
DK (1) DK1002602T3 (fr)
ES (1) ES2230767T3 (fr)
SI (1) SI1002602T1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6527039B2 (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
US6527040B2 (en) * 2001-06-11 2003-03-04 General Motors Corporation Casting of engine blocks
US6533020B2 (en) 2001-06-11 2003-03-18 General Motors Corporation Casting of engine blocks
US6598655B2 (en) 2001-06-11 2003-07-29 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
KR100650241B1 (ko) * 2003-07-07 2006-11-28 미쯔비시 지도샤 고교 가부시끼가이샤 실린더 라이너 주조 실린더 블록의 구조, 실린더 블록의 제조 방법, 및 상기 실린더 블록 제조 방법으로 주조되는 실린더 라이너
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

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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

Cited By (1)

* Cited by examiner, † Cited by third party
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
US6363995B1 (en) 2002-04-02
DE19853803C1 (de) 2000-03-30
SI1002602T1 (en) 2005-04-30
ES2230767T3 (es) 2005-05-01
EP1002602A1 (fr) 2000-05-24
ATE277706T1 (de) 2004-10-15
DK1002602T3 (da) 2005-01-24

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