EP0486463A2 - Moule de fonderie pour bloc cylindre d'un moteur à combustion à cylindres en V - Google Patents

Moule de fonderie pour bloc cylindre d'un moteur à combustion à cylindres en V Download PDF

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Publication number
EP0486463A2
EP0486463A2 EP91890272A EP91890272A EP0486463A2 EP 0486463 A2 EP0486463 A2 EP 0486463A2 EP 91890272 A EP91890272 A EP 91890272A EP 91890272 A EP91890272 A EP 91890272A EP 0486463 A2 EP0486463 A2 EP 0486463A2
Authority
EP
European Patent Office
Prior art keywords
cylinder
core
cores
casting mold
cylinder bore
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
EP91890272A
Other languages
German (de)
English (en)
Other versions
EP0486463B1 (fr
EP0486463B2 (fr
EP0486463A3 (en
Inventor
Andreas Ing. Bilek
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.)
AVL List GmbH
Original Assignee
AVL List GmbH
AVL Gesellschaft fuer Verbrennungskraftmaschinen und Messtechnik mbH
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Filing date
Publication date
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Application filed by AVL List GmbH, AVL Gesellschaft fuer Verbrennungskraftmaschinen und Messtechnik mbH filed Critical AVL List GmbH
Publication of EP0486463A2 publication Critical patent/EP0486463A2/fr
Publication of EP0486463A3 publication Critical patent/EP0486463A3/de
Publication of EP0486463B1 publication Critical patent/EP0486463B1/fr
Application granted granted Critical
Publication of EP0486463B2 publication Critical patent/EP0486463B2/fr
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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
    • B22C13/00—Moulding machines for making moulds or cores of particular shapes
    • 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
    • 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 
    • F02F1/24—Cylinder heads

Definitions

  • the invention relates to a casting mold for the cylinder block of an internal combustion engine with two rows of cylinders arranged in a V shape with cores for shaping the crank chamber and the cylinder bores.
  • Known molds for the cylinder block of V-engines consist of a lower box shape and an upper box shape, which essentially define the outer contour, and a large number of cores, which form the crankcase, the cylinder bores and the water and oil spaces.
  • the cores are designed separately for each individual crank chamber section. This means that a crankcase core, two cylinder bore cores and various water jacket and oil chamber cores must be provided for every two cylinders. This large number of cores increases the effort involved in assembling the core, which makes it more difficult, in particular, by anchoring the individual cores by means of core supports and core nails.
  • the casting tolerances are increased by the addition of the individual games between the cores, so that the required wall thicknesses must be chosen larger than necessary, so as not to fall below the required minimum wall thickness in the worst case.
  • a casting mold for in-line internal combustion engines is known from AT-PS387 164, which avoids the disadvantages described above. It is proposed that the core of the core be made in one piece with the water jacket cores.
  • the object of the present invention is to provide a casting mold in which these disadvantages do not occur and which enables the cylinder block to be produced very precisely in a simple manner, so that minimal wall thicknesses can also be achieved by means of minimal casting tolerances.
  • a single base core is provided, on which an integral cylinder bore core group can be placed for each row of cylinders.
  • Each of the two groups of cylinder bores is held by the base core.
  • a single base core is provided, on which a single cylinder bore core group made in one piece can be placed.
  • the design with a base core and two cylinder bore cores has the advantage that the individual cores are easier to manufacture.
  • the casting is more precise and the core assembly is easier.
  • the cylinder bore core group consists of a plurality of cylinder bore cores which are connected to one another via webs at the base of the cylinders.
  • the webs achieve a solid connection between the individual cylinder bore cores.
  • the parts of the cylinder bore core group for the two cylinder rows are connected to one another in the central plane of the engine via oil guide channel cores.
  • extensions are arranged on the cylinder bore core groups, which run essentially parallel to the cylinder axes and form oil return channels which are arranged in stiffening ribs which connect the slugs for the cylinder head screws to the main bearings.
  • stiffening ribs which connect the slugs for the cylinder head screws to the main bearings.
  • a particularly simple core arrangement is achieved in that a single water jacket core is provided for each row of cylinders.
  • the casting mold according to the invention has the following cores: the base core 1, the cylinder bore core group 2, the left water jacket core 3, the right water jacket core 4 and the V-core, which is designed in a known manner and is not shown in detail, for the termination in the cylinder head region.
  • the cores to be provided occasionally namely the front and rear core at the two axial ends of the motor, only the core 5 is provided for the suction side of the water pump in the exemplary embodiment.
  • individual cores in the figures are provided with the same reference numbers several times, although they only represent a single, integrally formed part.
  • the cylinder bore core group 2 consists of individual cylinder bore cores 2a, which are connected to one another for a row of cylinders by webs 2b. These webs 2b are supported in a corresponding recess on the base core 1. Furthermore, the cylinder bore core group 2 has oil return cores 2c, which are also supported on the base core 1. On the outside of the rows of cylinders and parallel to the axes of the cylinders, the cylinder bore core group 2 has extensions 2d which form the oil return channels within stiffening ribs which connect the slugs for the cylinder head bolts to the main bearings.
  • the core 2e for the main oil bore connects the cylinder bore cores 2a for the left and right row of cylinders via oil channel cores 2f. It is again pointed out that the entire cylinder bore core group 2 is formed in one piece.
  • a separate water jacket core 5 is provided for the suction side of the water pump.
  • FIG. 5 shows the flange 10 for the oil pan, furthermore the main bearing 11 with the bores 12 for the main bearing bolts.
  • the cylinders 13 and oil spaces 14 can also be seen.
  • the oil return openings 15 and 16 on the side of the main bearings are essential, which correspond to the cores 2c and 2d of the cylinder bore core group 2.
  • the left cylinder bore core group 22 and the right cylinder bore core group 32 are placed on the base core 1.
  • the cylinder bore cores are designated 22a and 32a, the webs 22b and 32b, the oil return cores 32c, the extensions 32d and the oil channel cores 32f
  • the main oil bore is created with the symmetrically arranged cores 22e and 32e.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
EP91890272A 1990-11-16 1991-11-11 Moule de fonderie pour bloc cylindre d'un moteur à combustion à cylindres en V Expired - Lifetime EP0486463B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT232590 1990-11-16
AT2325/90 1990-11-16

Publications (4)

Publication Number Publication Date
EP0486463A2 true EP0486463A2 (fr) 1992-05-20
EP0486463A3 EP0486463A3 (en) 1993-03-24
EP0486463B1 EP0486463B1 (fr) 1995-08-02
EP0486463B2 EP0486463B2 (fr) 1998-08-05

Family

ID=3532266

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91890272A Expired - Lifetime EP0486463B2 (fr) 1990-11-16 1991-11-11 Moule de fonderie pour bloc cylindre d'un moteur à combustion à cylindres en V

Country Status (3)

Country Link
EP (1) EP0486463B2 (fr)
KR (1) KR950014483B1 (fr)
DE (1) DE59106144D1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4324609A1 (de) * 1993-07-22 1995-01-26 Avl Verbrennungskraft Messtech Kurbelgehäuse für Brennkraftmaschinen
FR2708494A1 (fr) * 1993-08-04 1995-02-10 Daimler Benz Ag Moule pour la coulée du bloc-cylindres d'un moteur à combustion interne à pistons alternatifs.
FR2751251A1 (fr) * 1996-07-19 1998-01-23 Renault Procede et noyau pour la realisation par moulage d'une culasse de moteur a combustion interne
EP0852975A1 (fr) * 1997-01-08 1998-07-15 AMSTED Industries Incorporated Trucks de chemin de fer moulés et procédé et noyaux pour leur production
DE10019310C1 (de) * 2000-04-19 2001-10-25 Vaw Mandl & Berger Gmbh Linz Gießform, umfassend Außenformteile und darin eingelegte Formstoffkerne
US6458462B1 (en) 2000-12-13 2002-10-01 3M Innovative Properties Company Sporting goods having a ceramer coating
FR2841163A1 (fr) * 2002-06-21 2003-12-26 Montupet Sa Procede de moulage de pieces de fonderie, notamment de blocs-moteurs, en alliage leger
FR2878457A1 (fr) * 2004-11-29 2006-06-02 Renault Sas Procede de realisation d'une rampe a huile dans un carter cylindres d'un moteur a combustion interne pour vehicule automobile, noyau de moulage pour la mise en oeuvre d'un tel procede, carter cylindres et moteur ainsi obtenus
US7814879B2 (en) 2008-04-23 2010-10-19 Techtronic Outdoor Products Technology Limited Monolithic block and valve train for a four-stroke engine
DE102014100458B4 (de) 2013-01-22 2018-12-20 GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) System zum Reduzieren eines Gasdrucks innerhalb einer zumindest teilweise durchlässigen Form zum Herstellen eines Metallgussteiles

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8533946B2 (en) * 2011-12-14 2013-09-17 GM Global Technology Operations LLC Method of manufacturing a crankshaft

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3264693A (en) * 1963-12-18 1966-08-09 Gen Motors Corp Molding assembly for internal combustion engine blocks
DE3543194C1 (de) * 1985-12-06 1986-11-20 Mtu Motoren- Und Turbinen-Union Friedrichshafen Gmbh, 7990 Friedrichshafen Vorrichtung zum Gießen von Zylinder-Kurbelgehäusen
AT387164B (de) * 1987-02-25 1988-12-12 Avl Verbrennungskraft Messtech Giessform fuer ein kurbelgehaeuse

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4324609A1 (de) * 1993-07-22 1995-01-26 Avl Verbrennungskraft Messtech Kurbelgehäuse für Brennkraftmaschinen
FR2708494A1 (fr) * 1993-08-04 1995-02-10 Daimler Benz Ag Moule pour la coulée du bloc-cylindres d'un moteur à combustion interne à pistons alternatifs.
FR2751251A1 (fr) * 1996-07-19 1998-01-23 Renault Procede et noyau pour la realisation par moulage d'une culasse de moteur a combustion interne
WO1998003290A1 (fr) * 1996-07-19 1998-01-29 Renault Procede et noyau pour la realisation par moulage d'une culasse de moteur a combustion interne
US6622776B2 (en) 1997-01-08 2003-09-23 Amsted Industries Incorporated Method of making sideframes for railway car trucks
EP0852975A1 (fr) * 1997-01-08 1998-07-15 AMSTED Industries Incorporated Trucks de chemin de fer moulés et procédé et noyaux pour leur production
US5954114A (en) * 1997-01-08 1999-09-21 Amsted Industries Incorporated Method of making railway truck bolsters
US5967053A (en) * 1997-01-08 1999-10-19 Amsted Industries Incorporated Sideframes for railway trucks
AU727762B2 (en) * 1997-01-08 2000-12-21 Amsted Industries Incorporated Railway truck castings and method and cores for making castings
US6662853B2 (en) 1997-01-08 2003-12-16 Amsted Industries Incorporated Method of making bolsters and sideframes for railway car trucks
DE10019310C1 (de) * 2000-04-19 2001-10-25 Vaw Mandl & Berger Gmbh Linz Gießform, umfassend Außenformteile und darin eingelegte Formstoffkerne
US6662857B2 (en) 2000-04-19 2003-12-16 Vaw Mandl & Berger Gmbh Mold comprising outer mold parts and molding material cores inserted into same
US6458462B1 (en) 2000-12-13 2002-10-01 3M Innovative Properties Company Sporting goods having a ceramer coating
FR2841163A1 (fr) * 2002-06-21 2003-12-26 Montupet Sa Procede de moulage de pieces de fonderie, notamment de blocs-moteurs, en alliage leger
WO2004000486A1 (fr) * 2002-06-21 2003-12-31 Montupet S.A. Procede de moulage de pieces de fonderie, notamment de blocs-moteurs, en alliage leger
FR2878457A1 (fr) * 2004-11-29 2006-06-02 Renault Sas Procede de realisation d'une rampe a huile dans un carter cylindres d'un moteur a combustion interne pour vehicule automobile, noyau de moulage pour la mise en oeuvre d'un tel procede, carter cylindres et moteur ainsi obtenus
US7814879B2 (en) 2008-04-23 2010-10-19 Techtronic Outdoor Products Technology Limited Monolithic block and valve train for a four-stroke engine
DE102014100458B4 (de) 2013-01-22 2018-12-20 GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) System zum Reduzieren eines Gasdrucks innerhalb einer zumindest teilweise durchlässigen Form zum Herstellen eines Metallgussteiles

Also Published As

Publication number Publication date
KR950014483B1 (ko) 1995-12-02
KR920009478A (ko) 1992-06-25
EP0486463B1 (fr) 1995-08-02
DE59106144D1 (de) 1995-09-07
EP0486463B2 (fr) 1998-08-05
EP0486463A3 (en) 1993-03-24

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