EP0486463B2 - 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
EP0486463B2
EP0486463B2 EP91890272A EP91890272A EP0486463B2 EP 0486463 B2 EP0486463 B2 EP 0486463B2 EP 91890272 A EP91890272 A EP 91890272A EP 91890272 A EP91890272 A EP 91890272A EP 0486463 B2 EP0486463 B2 EP 0486463B2
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EP
European Patent Office
Prior art keywords
cylinder
cores
casting mold
core
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.)
Expired - Lifetime
Application number
EP91890272A
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German (de)
English (en)
Other versions
EP0486463A3 (en
EP0486463A2 (fr
EP0486463B1 (fr
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
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Filing date
Publication date
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Application filed by AVL List GmbH filed Critical AVL List GmbH
Publication of EP0486463A2 publication Critical patent/EP0486463A2/fr
Publication of EP0486463A3 publication Critical patent/EP0486463A3/de
Application granted granted Critical
Publication of EP0486463B1 publication Critical patent/EP0486463B1/fr
Publication of EP0486463B2 publication Critical patent/EP0486463B2/fr
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Classifications

    • 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
    • B22C9/103—Multipart cores
    • 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 mold for the Cylinder block of an internal combustion engine with two in V-shaped rows of cylinders with cores for Shaping the crank chamber and the cylinder bores, see for example DE-C-35 43 194.
  • Known molds for the cylinder block V-engines consist of a bottom box shape and an upper box shape, which essentially define the outer contour, and a variety of Cores, the crankcase, the cylinder bores as well as the water and oil spaces.
  • the cores are in these known molds for each crankcase section separately executed. This means that for every two Cylinder a crankcase core, two cylinder bore cores as well as various water jacket and oil chamber cores are to be provided. Because of this large number The effort involved in core assembly becomes a matter of cores increased, making this particular by anchoring the individual cores through Core supports, core nails is difficult. Furthermore are the casting tolerances by adding the individual games between the cores increased so that the required wall thicknesses larger than required must be chosen in order to worst case, the required minimum wall thickness not to fall below.
  • AT-PS 387 164 is a casting mold for Series internal combustion engines known to the above avoids disadvantages. Doing so proposed, because basic core with the water jacket cores train in one piece.
  • the object of the present invention is to create a mold that has these disadvantages do not occur and the simple one enables very precise manufacture of the cylinder block, through minimal casting tolerances minimal wall thicknesses can also be achieved.
  • a single base core on which a single unitary cylinder bore core group is attachable.
  • the cylinder bore core group from a plurality of cylinder bore cores consists of webs on Foot of the cylinders are interconnected.
  • they appear in the main warehouse walls at least two additional recesses that be caused by the webs and it will at the same time achieved that the clearances of the honing tool or the crankshaft counterweights are guaranteed in any case.
  • will through the webs a solid connection of the individual Cylinder bore cores reached.
  • the parts of the Cylinder bore core group for the two rows of cylinders are over in the middle plane of the engine Oil guide channel cores connected to each other.
  • the invention provides that on the cylinder bore core groups Extensions are arranged, which are essentially parallel to the cylinder axes run and form oil return channels that in stiffening ribs are arranged, the slugs for the cylinder head bolts with the main bearings connect.
  • the design-related openings in the main bearing walls reduced rigidity of the cylinder block compensated.
  • the special box shape of the stiffening ribs achieved a favorable force introduction, which is too low Deformation of the cylinder block during operation the internal combustion engine leads. At the same time the oil circulation is improved.
  • a particularly simple core arrangement is achieved in that a single for each row of cylinders Water jacket core is provided.
  • the 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 well-known So executed and not shown V-core for the end in the cylinder head area.
  • the cores to be provided on a case-by-case basis namely the front and rear core to the both axial ends of the motor, is in the embodiment only the core 5 for the suction side the water pump.
  • the cores in the figures provided several times with the same reference numerals, although they are only one piece represent trained part.
  • the cylinder bore core group 2 consists of individual cylinder bore cores 2a, each for a row of cylinders with each other via webs 2b are connected. These webs 2b are supported in a corresponding recess on the base core 1 from.
  • the cylinder core group also has 2 oil return cores 2c, which are also on Support base core 1.
  • On the outside of the rows of cylinders and parallel to the axes of the cylinders the cylinder bore core group has 2 extensions 2d that the oil return channels within Stiffening ribs that form the slugs for the cylinder head bolts with the main bearings connect.
  • the core 2e for the main oil drilling connects the cylinder bore cores via oil channel cores 2f 2a for the left and for the right Row of cylinders. It is again pointed out that the entire cylinder bore core group 2 is formed in one piece.
  • a separate water jacket core is known 5 for the suction side of the water pump intended.
  • the flange 10 can be seen for the oil pan, furthermore the main bearing 11 with the bores 12 for the main bearing bolts. So are the cylinders 13 and oil spaces 14 can be seen. Essential are the oil return openings 15 and 16 laterally Main bearing, which the cores 2c and 2d Correspond to cylinder bore core group 2.

Landscapes

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

Claims (4)

  1. Moule de fonderie pour le bloc-cylindres d'un moteur à combustion interne avec deux rangées de cylindres disposées en V avec des noyaux (1, 2) pour réaliser le carter de vilebrequin et les alésages de cylindre, caractérisé en ce qu'on prévoit un seul noyau de base (1) sur lequel est placer un seul groupe (2) de noyaux pour les alésages de cylindre réalisé d'une seul pièce.
  2. Moule de fonderie selon revendication 1, caractérisé en ce que les groupes de noyaux d'alésage de cylindre (2) sont constitués de plusieurs noyaux d'alésage de cylindre (2a), qui sont reliés par des pattes (2b) à la base des cylindres.
  3. Moule de fonderie selon l'une des revendications 1 ou 2, caractérisé en ce que sur les groupes de noyaux d'alésage de cylindre (2) sont implantés des prolongements (2d) qui s'étendent essentiellement parallèlement à l'axe des cylindres et forment des canaux de retour d'huile, qui sont implantés dans les nervures de renfort, qui relient les cuvettes des vis de culasse de cylindre aux paliers principaux.
  4. Moule de fonderie selon l'une des revendications 1 ou 2, caractérisé en ce qu'on prévoit pour chaque rangée de cylindres un seul noyau de chemise d'eau de refroidissement (3, 4).
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
AT2325/90 1990-11-16
AT232590 1990-11-16

Publications (4)

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

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4324609C2 (de) * 1993-07-22 1997-10-16 Avl Verbrennungskraft Messtech Kurbelgehäuse für Brennkraftmaschinen
DE4326157C1 (de) * 1993-08-04 1994-05-05 Daimler Benz Ag Gießform für ein Zylinderkurbelgehäuse einer Hubkolben-Brennkraftmaschine
FR2751251B1 (fr) * 1996-07-19 1998-08-21 Renault Procede et noyau pour la realisation par moulage d'une culasse de moteur a combustion interne
US5752564A (en) * 1997-01-08 1998-05-19 Amsted Industries Incorporated Railway truck castings and method and cores for making castings
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
FR2841163B1 (fr) * 2002-06-21 2005-01-28 Montupet Sa Procede de moulage de pieces de fonderie, notamment de blocs-moteurs, en alliage leger
FR2878457B1 (fr) * 2004-11-29 2008-05-30 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
US8533946B2 (en) * 2011-12-14 2013-09-17 GM Global Technology Operations LLC Method of manufacturing a crankshaft
US9403209B2 (en) 2013-01-22 2016-08-02 GM Global Technology Operations LLC Methods for sand core gas evacuation and related systems and apparatus

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

Also Published As

Publication number Publication date
KR950014483B1 (ko) 1995-12-02
EP0486463A3 (en) 1993-03-24
KR920009478A (ko) 1992-06-25
EP0486463A2 (fr) 1992-05-20
EP0486463B1 (fr) 1995-08-02
DE59106144D1 (de) 1995-09-07

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