EP1578549B1 - Systeme de noyau pour produire un carter de vilebrequin de cylindre a zone de refroidissement par eau separee - Google Patents

Systeme de noyau pour produire un carter de vilebrequin de cylindre a zone de refroidissement par eau separee Download PDF

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Publication number
EP1578549B1
EP1578549B1 EP03769281A EP03769281A EP1578549B1 EP 1578549 B1 EP1578549 B1 EP 1578549B1 EP 03769281 A EP03769281 A EP 03769281A EP 03769281 A EP03769281 A EP 03769281A EP 1578549 B1 EP1578549 B1 EP 1578549B1
Authority
EP
European Patent Office
Prior art keywords
core
cores
cylinder
water jacket
water
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
EP03769281A
Other languages
German (de)
English (en)
Other versions
EP1578549A3 (fr
EP1578549A2 (fr
Inventor
Jürgen ACHENBACH
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.)
Eisenwerk Bruehl GmbH
Original Assignee
Eisenwerk Bruehl 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 Eisenwerk Bruehl GmbH filed Critical Eisenwerk Bruehl GmbH
Publication of EP1578549A2 publication Critical patent/EP1578549A2/fr
Publication of EP1578549A3 publication Critical patent/EP1578549A3/fr
Application granted granted Critical
Publication of EP1578549B1 publication Critical patent/EP1578549B1/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
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/10—Cores; Manufacture or installation of cores
    • B22C9/103—Multipart cores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C21/00—Flasks; Accessories therefor
    • B22C21/12—Accessories
    • B22C21/14—Accessories for reinforcing or securing moulding materials or cores, e.g. gaggers, chaplets, pins, bars

Definitions

  • a water jacket is provided in the cylinder crankcase, which covers the cylinders on both sides and which has a central inlet and a central outlet with both sides of the water jacket are flowed through approximately equally and thus a uniform cooling of the cylinder both sides takes place.
  • Out DE-37 07 256 C is a one-piece core element for the production of cylinder crankcases for piston engines known, which is integrally formed from sole core and the two sheath cores.
  • the two water jacket cores are not open at the front, so that there is a clear and reliable fixation in the mold for such a core element.
  • the cylinder crankcase according to the invention however, can not be made with such a core element.
  • Out DE-100 58 428 A is a plan view of a finished cylinder block showing a water jacket for a piston engine with cylinders in a row, the water jacket is open at the front.
  • the mold core assembly for producing this cylinder crankcase is not apparent from this prior publication.
  • Out DE-G 90 16 902 is to remove a water jacket core clasp consisting of three parts, which is designed as a plug-in element.
  • This known core brace requires that the water jacket dividing cores are each made by themselves and then assembled together over the center piece of the core clip and then connected to the associated sole core.
  • the disadvantage of such an arrangement is that the water jacket core must be assembled in a separate joining operation before it can be joined together with the sole core.
  • the invention has for its object to provide a mold core assembly for the casting of an engine block of the type described above, which is easier to assemble.
  • the particular advantage of the invention is that in the manufacture of the two water jacket cores, the fasteners are inserted into the core mold and involved in shooting the core molding compound, so that after curing of the core molding compound of this core consisting of two partial cores handled as a unit and with the Cylinder core having sole core can be assembled into a complete core assembly.
  • the drawing shows a mold core arrangement for a cylinder bank with, for example, four cylinders in a series arrangement with a split water jacket.
  • the mold core assembly consists of four cylinder cores 1, 2, 3 and 4, which are integrally formed with a sole core 5 of core molding compound.
  • the core molding compound is injected in a usual manner into a core forming machine into a core mold enclosing the cylinder cores 1 to 4 and the sole core 5.
  • the cylinder cores 1 to 4 are associated with two water jacket partial cores 6.1 and 6.2, the cup-shaped over the row of cylinder cores 1 to 4 on the longitudinal sides at a distance over.
  • the two water jacket partial cores 6.1 and 6.2 are in this case designed so that in each case a free space 7 remains on the front side.
  • the two water jacket parts 6.1 and 6.2 are made by inserting a connecting element 8 made of sheet metal in the shaping contours of the core shooter together in one step, d. H. in a nuclear shooting process, manufactured. Due to the enclosed connecting element 8, the two Wassermentalteilkerne 6.1 and 6.2 manufacturing technology practically in the same way usable as usual one-piece water jacket cores.
  • the two water jacket dividing cores are thus connected to one another at the ends via the connecting element 8, for example made of sheet iron, so that the two water jacket dividing cores 6.1 and 6.2 can be handled as a rigid unit and joined together with the sole core 5.
  • the connecting element 8 for example made of sheet iron
  • each formed on the lower edge side 9 of both water jacket dividing cores 6.1 and 6.2 peg-shaped projections, which corresponding depressions on the mold surface 10 of the sole core 5 are assigned.
  • the two water jacket dividing cores 6.1 and 6.2 are fixed against each other, so that they maintain the given position to each other and the cylinder cores 1 to 4 during the casting process.
  • the parts of the connecting elements 8 which are exposed in the area of the front opening 7 are completely melted or fused, so that there is no longer any firm connection with the solidification of the melt between the two water jacket partial cores 6.1, 6.2.
  • the existing iron sheet connecting elements 8 are dimensioned in their plate thickness so that a complete melting is guaranteed at the end of the casting process. This also ensures that the water jacket dividing cores do not change their position in the mold during the inflow of the melt. At the same time it is also ensured that after casting and removal of the core molding material from the casting an undisturbed Flow through the coolant is ensured by the two water jacket parts.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Claims (3)

  1. Système de noyau pour fabriquer un carter de vilebrequin de cylindre pour un moteur à piston avec des cylindres disposés en rangée, qui présente une chemise d'eau séparée, avec un noyau semelle (5) qui forme une seule pièce par complémentarité de matière avec des noyaux à cylindres (1, 2, 3, 4), et avec deux noyaux partiels à chemises d'eau (6.1, 6.2) séparés en forme de coque recouvrant la rangée des noyaux à cylindres (1, 2, 3, 4) latéralement à distance, qui sont assemblés avec le noyau semelle (5) et reliés l'un à l'autre respectivement au niveau des deux côtés frontaux disposés à distance l'un par rapport à l'autre par au moins un élément de liaison (8) en métal encastré à distance du noyau semelle (5) par ses extrémités libres (8.1, 8.2) respectivement dans la masse de moulage de noyaux des deux noyaux partiels à chemises d'eau (6.1, 6.2).
  2. Système de noyau selon la revendication 1, caractérisé en ce que l'élément de liaison (8) est en tôle métallique.
  3. Système de noyau selon la revendication 1 ou 2, caractérisé en ce que les extrémités libres (8.1, 8.2) de l'élément de liaison (8) sont respectivement encastrées dans le matériau de moulage des deux noyaux à chemises d'eau (6.1, 6.2).
EP03769281A 2002-10-02 2003-09-17 Systeme de noyau pour produire un carter de vilebrequin de cylindre a zone de refroidissement par eau separee Expired - Lifetime EP1578549B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10245956 2002-10-02
DE10245956A DE10245956A1 (de) 2002-10-02 2002-10-02 Formkernanordnung zur Herstellung eines Zylinderkurbelgehäuses mit getrenntem Wasserkühlungsbereich
PCT/EP2003/010310 WO2004033128A2 (fr) 2002-10-02 2003-09-17 Systeme de noyau pour produire un carter de vilebrequin de cylindre a zone de refroidissement par eau separee

Publications (3)

Publication Number Publication Date
EP1578549A2 EP1578549A2 (fr) 2005-09-28
EP1578549A3 EP1578549A3 (fr) 2005-11-02
EP1578549B1 true EP1578549B1 (fr) 2008-05-14

Family

ID=32010088

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03769281A Expired - Lifetime EP1578549B1 (fr) 2002-10-02 2003-09-17 Systeme de noyau pour produire un carter de vilebrequin de cylindre a zone de refroidissement par eau separee

Country Status (7)

Country Link
EP (1) EP1578549B1 (fr)
AT (1) ATE395154T1 (fr)
AU (1) AU2003277864A1 (fr)
BR (1) BR0314859A (fr)
DE (2) DE10245956A1 (fr)
ES (1) ES2305523T3 (fr)
WO (1) WO2004033128A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106862494A (zh) * 2017-02-28 2017-06-20 宁夏共享模具有限公司 一种带直冷冷铁的3d打印砂芯的制作方法

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008048761B4 (de) * 2008-09-24 2019-03-28 Volkswagen Ag Verfahren zum Gießen eines Gusskörpers, insbesondere Zylinderkurbelgehäuses und Gießvorrichtung zur Durchführung des Verfahrens
DE102010054496B4 (de) * 2010-12-14 2020-06-18 Volkswagen Ag Durch Gießen hergestelltes Elektromotorgehäuseteil für einen Elektromotor
CN104439089B (zh) * 2014-11-13 2017-03-15 四川南车共享铸造有限公司 一种砂芯紧固结构、制备方法及其应用
GB201503640D0 (en) * 2015-03-04 2015-04-15 Rolls Royce Plc A core for an investment casting process
US10766065B2 (en) * 2016-08-18 2020-09-08 General Electric Company Method and assembly for a multiple component core assembly
CN106270399A (zh) * 2016-08-30 2017-01-04 宁夏共享模具有限公司 用于3d打印砂芯的标芯工装
DE102016012568A1 (de) 2016-10-21 2018-04-26 Deutz Aktiengesellschaft Zylinderkurbelgehäuse
FR3120807B1 (fr) * 2021-03-16 2023-12-01 Safran Aircraft Engines Procédé de fabrication par moulage de cire perdue

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT387164B (de) * 1987-02-25 1988-12-12 Avl Verbrennungskraft Messtech Giessform fuer ein kurbelgehaeuse
DE3707256C1 (en) * 1987-03-06 1988-07-07 Halbergerhuette Gmbh Core for the casting of grey cast iron cylinder blocks
DE9016902U1 (de) * 1990-12-14 1991-03-07 Karl Schmidt Fabrik für Gießereibedarf GmbH & Co, 6384 Schmitten Wassermantelkernspange
DE29609446U1 (de) * 1996-05-28 1996-08-29 Karl Schmidt Fabrik für Gießereibedarf GmbH & Co., 61389 Schmitten Wassermantelkern-Haltespange
JP2001227403A (ja) * 2000-02-16 2001-08-24 Koyama:Kk シリンダライナーとその製造方法、およびシリンダブロックとその製造方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106862494A (zh) * 2017-02-28 2017-06-20 宁夏共享模具有限公司 一种带直冷冷铁的3d打印砂芯的制作方法
CN106862494B (zh) * 2017-02-28 2018-10-19 共享智能装备有限公司 一种带直冷冷铁的3d打印砂芯的制作方法

Also Published As

Publication number Publication date
WO2004033128A2 (fr) 2004-04-22
AU2003277864A1 (en) 2004-05-04
AU2003277864A8 (en) 2004-05-04
EP1578549A3 (fr) 2005-11-02
WO2004033128A3 (fr) 2005-09-09
BR0314859A (pt) 2005-08-02
ES2305523T3 (es) 2008-11-01
ATE395154T1 (de) 2008-05-15
DE10245956A1 (de) 2004-04-15
EP1578549A2 (fr) 2005-09-28
DE50309857D1 (de) 2008-06-26

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