EP1578549A2 - 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

Info

Publication number
EP1578549A2
EP1578549A2 EP03769281A EP03769281A EP1578549A2 EP 1578549 A2 EP1578549 A2 EP 1578549A2 EP 03769281 A EP03769281 A EP 03769281A EP 03769281 A EP03769281 A EP 03769281A EP 1578549 A2 EP1578549 A2 EP 1578549A2
Authority
EP
European Patent Office
Prior art keywords
core
water jacket
cores
cylinder
sole
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.)
Granted
Application number
EP03769281A
Other languages
German (de)
English (en)
Other versions
EP1578549A3 (fr
EP1578549B1 (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
BRUEHL EISENWERK
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 BRUEHL EISENWERK, Eisenwerk Bruehl GmbH filed Critical BRUEHL EISENWERK
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

Links

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 being flowed through approximately uniformly and thus ensuring uniform cooling of the cylinders on both sides.
  • a one-piece core element for the production of cylinder crankcases for piston engines is known, which is formed in one piece from the sole core and the two jacket cores.
  • the two water jacket cores are not open at the end, so that a clear and reliable fixation in the casting mold results for such a core element.
  • the cylinder crankcase according to the invention cannot be produced with such a core element.
  • a finished cylinder block can be seen in a top view, which shows a water jacket for a piston engine with cylinders arranged in a row, the water jacket of which is open at the end in each case.
  • the mold core arrangement for producing this cylinder crankcase cannot be seen from this prior publication.
  • DE-G 90 16 902 shows a three-part water jacket core clip which is designed as a plug-in element.
  • This previously known core clip presupposes that the water jacket part cores are each manufactured for themselves and then joined together via the middle 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 assembled with the sole core.
  • the invention has for its object to provide a mold core assembly for casting an engine block of the type described above, which is easier to assemble.
  • the particular advantage of the invention is that the connecting elements are inserted into the core mold during the manufacture of the two water jacket partial cores and incorporated when the core molding compound is shot in, so that after the core molding compound has hardened, this core consisting of two partial cores is handled like a unit and with which can be combined to form a complete core arrangement, the sole core having the cylinder cores.
  • the drawing shows a mandrel arrangement for a cylinder bank with, for example, four cylinders in a row arrangement with a divided water jacket.
  • the mold core arrangement consists of four cylinder cores 1, 2, 3 and 4, which are molded in one piece from a core molding compound with a sole core 5.
  • the core molding compound is shot in a core molding machine in a conventional manner into a core mold which encloses the cylinder cores 1 to 4 and the sole core 5.
  • the cylinder cores 1 to 4 are assigned two water jacket parts 6.1 and 6.2, which cover the row of cylinder cores 1 to 4 on the long sides at a distance.
  • the two water jacket partial cores 6.1 and 6.2 are designed in such a way that a free space 7 remains on each end.
  • the two water jacket parts 6.1 and 6.2 are produced by inserting a connecting element 8 made of sheet metal into the shaping contours of the core shooting machine together in one step, ie in a core shooting process. Due to the enclosed connecting element 8, the two partial water core cores 6.1 and 6.2 can be used practically in the same way in production terms as the otherwise common one-piece water jacket cores.
  • the two water jacket part cores are thus firmly connected to one another at the end face via the connecting element 8, for example made of sheet iron, so that the two water jacket part 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
  • peg-shaped projections are formed on the lower edge side 9 of both water jacket partial cores 6.1 and 6.2, to which corresponding depressions on the shaped surface 10 of the sole core 5 are assigned.
  • the two water jacket part cores 6.1 and 6.2 are fixed against one another via the connecting elements 8 provided at a distance from the molding surface 10 of the sole core 5, so that they maintain the predetermined position relative to one another and to the cylinder cores 1 to 4 during the casting process.
  • the parts of the connecting elements 8 which are exposed in the region of the front opening 7 are completely melted or melted, so that with the solidification of the melt there is no longer a firm connection between the two water jacket partial cores 6.1, 6.2.
  • the connecting elements 8 made of iron sheet are dimensioned in their sheet thickness so that a complete melting is guaranteed at the end of the casting process. This also ensures that the water jacket part cores do not change their position in the casting mold during the feed of the melt.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
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
DE10245956A DE10245956A1 (de) 2002-10-02 2002-10-02 Formkernanordnung zur Herstellung eines Zylinderkurbelgehäuses mit getrenntem Wasserkühlungsbereich
DE10245956 2002-10-02
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 true EP1578549A2 (fr) 2005-09-28
EP1578549A3 EP1578549A3 (fr) 2005-11-02
EP1578549B1 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
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

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
DE102016012568A1 (de) 2016-10-21 2018-04-26 Deutz Aktiengesellschaft Zylinderkurbelgehäuse
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
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 (fr) * 1990-12-14 1991-03-07 Karl Schmidt Fabrik Fuer Giessereibedarf Gmbh & Co, 6384 Schmitten, De
DE29609446U1 (de) * 1996-05-28 1996-08-29 Karl Schmidt Fabrik Fuer Giese 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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004033128A3 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Also Published As

Publication number Publication date
WO2004033128A3 (fr) 2005-09-09
AU2003277864A1 (en) 2004-05-04
AU2003277864A8 (en) 2004-05-04
BR0314859A (pt) 2005-08-02
EP1578549A3 (fr) 2005-11-02
ES2305523T3 (es) 2008-11-01
DE10245956A1 (de) 2004-04-15
EP1578549B1 (fr) 2008-05-14
WO2004033128A2 (fr) 2004-04-22
DE50309857D1 (de) 2008-06-26
ATE395154T1 (de) 2008-05-15

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