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WO2018148769A1 - Procédé pour la fabrication d'un bloc-moteur moulé à refroidissement liquide - Google Patents

Procédé pour la fabrication d'un bloc-moteur moulé à refroidissement liquide Download PDF

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Publication number
WO2018148769A1
WO2018148769A1 PCT/AT2018/060036 AT2018060036W WO2018148769A1 WO 2018148769 A1 WO2018148769 A1 WO 2018148769A1 AT 2018060036 W AT2018060036 W AT 2018060036W WO 2018148769 A1 WO2018148769 A1 WO 2018148769A1
Authority
WO
WIPO (PCT)
Prior art keywords
cylinder
crankcase
core
crank
crank chamber
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.)
Ceased
Application number
PCT/AT2018/060036
Other languages
German (de)
English (en)
Inventor
Stefan Feichtinger
Stefan STOCKER-REICHER
Günter Häusl
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
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 AVL List GmbH filed Critical AVL List GmbH
Publication of WO2018148769A1 publication Critical patent/WO2018148769A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • F02F7/00—Casings, e.g. crankcases
    • F02F7/0002—Cylinder arrangements
    • 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
    • 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
    • B22C9/108—Installation of cores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/22—Moulds for peculiarly-shaped castings
    • B22C9/24—Moulds for peculiarly-shaped castings for hollow articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D15/00—Casting using a mould or core of which a part significant to the process is of high thermal conductivity, e.g. chill casting; Moulds or accessories specially adapted therefor
    • B22D15/02—Casting using a mould or core of which a part significant to the process is of high thermal conductivity, e.g. chill casting; Moulds or accessories specially adapted therefor of cylinders, pistons, bearing shells or like thin-walled objects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
    • 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
    • F02F7/00—Casings, e.g. crankcases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/122—Cylinder block
    • 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
    • F02F2200/00—Manufacturing
    • F02F2200/06—Casting

Definitions

  • the invention relates to a method for producing a cast, liquid-cooled cylinder crankcase of a reciprocating internal combustion engine with at least two acting on crankshafts a crankshaft piston, with cylinder chambers for receiving the piston and a crank chamber, are arranged in the cylinder between the main bearing brackets for the main bearing of a crankshaft wherein the cylinder crankcase is cast using a plurality of crankcase core segments, wherein the crankcase core segments are aligned and interconnected prior to the casting operation.
  • the invention relates to a core assembly for carrying out the method for producing a cast, liquid-cooled cylinder crankcase of a reciprocating internal combustion engine having at least two acting on crankshafts a crankshaft piston, with a plurality of crankcase core segments formed crankcase cores.
  • the pistons act on different crankshaft crankshafts.
  • the invention relates to a reciprocating internal combustion engine, which is manufactured with this core arrangement.
  • DE 195 18 417 AI a cast, liquid-cooled cylinder crankcase of a reciprocating internal combustion engine is known, which has at least two cylinder tubes and crankcases and cylinder chambers in which between the cylinder tubes main bearing bridges for the main bearings of a crankshaft and next to the cylinder tubes bearing bores are arranged for a camshaft ,
  • DE 195 18 417 A1 proposes a one-piece crankcase core for all crankcases and cylinder chambers.
  • the disadvantage is that different core shapes are necessary for different number of cylinders, since each crankcase core is designed for a specific number of cylinders.
  • inner and outer surfaces of the cylinder crankcase are formed by different cores, which increases the number of cores needed and thus the production cost. It is the object of the present invention to avoid these disadvantages and to enable a simple, yet flexible production of a cast cylinder crankcase.
  • this object is achieved in that at least one lateral inner wall region and at least one lateral outer wall region of the cylinder crankcase is formed by a single crank chamber core segment.
  • the inner wall surfaces and the outer wall surfaces of the cylinder crankcase in the region of the crank chamber and the cylinder space are formed by a single crank chamber core segment. This can limit the number of cores.
  • crankcase core segment is provided, which is a crankcase associated crankcase segment of the crankcase including main bearing walls and at least one of the crankcase associated cylinder space at least partially, preferably in half, forms.
  • the individual crankcase core segments are lined up according to the cylinder, Hauptlagerwand- or Kröpfungskohl of the cylinder crankcase to be produced in the direction of the crankshaft axis in a modular manner one behind the other, aligned and interconnected.
  • Each individual crankcase core segment is designed to form and shape the crankcase, the half cylinder space, the main bearing walls, oil passages and coolant passages in the region of a crank throw, in particular between two adjacent main bearing walls.
  • a further reduction of the number of cores with high flexibility can be achieved if at least one crankcase-associated outer wall ceiling region of the cylinder crankcase is formed by means of the crankcase core segment.
  • At least one cooling jacket surrounding a cylinder chamber is formed by means of a cooling core segment, wherein preferably each cylinder chamber is assigned a cooling core segment.
  • the crankcase core segments and cooling core segments are aligned and interconnected prior to the casting operation.
  • FIG. 1 shows a core arrangement according to the invention in an oblique view.
  • FIG. 2 is a front view of a crankcase core segment
  • crankcase core segment 3 shows a detail of a crankcase core segment in an oblique view
  • FIG. 4 shows a cooling core segment in an oblique view.
  • the figures show a core assembly 1 for a cylinder crankcase of a reciprocating internal combustion engine with V-shaped arranged in two rows of cylinders for receiving a respective - not shown piston.
  • the core assembly 1 has a plurality of crankshaft core segments 2, which before the casting process in the direction of - not further shown - crankshaft axis of the piston engine to be cast lined up, aligned and firmly connected.
  • Each crankshaft core segment 2 is associated with a - not further apparent - crank throw of the crankshaft of the reciprocating internal combustion engine or a main bearing wall 5.
  • each piston of the internal combustion engine acts on each crank throw of the crankshaft.
  • the pistons thus act on different crankshafts of the crankshaft.
  • each crank chamber core segment 2 is associated with a crankshaft arranged centrally in the axial direction in the crankcase core segment 2 and two main bearing walls 5 arranged at the axial ends and bounded by the cylinder axes 4 a of the cylinder chambers 4 engine transverse planes 3 a, 3 b in which the main bearing walls 5 are located.
  • Each crankshaft core segment 2 is designed to form the crankcase segments 6 of the crank chamber 7 associated with the main bearing wall 5, as well as at least one cylinder chamber 4 of each cylinder bank together with the main bearing walls 5 arranged in the crankcase segment 6, and possibly also cam bearing walls, as can be seen from FIG.
  • each crankcase core segment 2 is designed so that it forms the lateral inner wall portions 8 and lateral outer wall portions 9 of the corresponding crankcase segment 6 of the cylinder crankcase.
  • at least one cooling jacket 13 surrounding a cylinder chamber 4 is formed by means of a cooling core segment 14, wherein each cylinder chamber 4 is assigned at least one cooling core segment 14.
  • crankshaft core segments 2 Prior to the casting process, a number of crankshaft core segments 2 corresponding to the number of crank chamber core segments 2 to be cast is successively aligned in the direction of the crankshaft axis, aligned and connected to form a crank chamber core unit 15. Similarly, one of the cylinder space number of the reciprocating internal combustion engine to be cast corresponding number of cooling core segments 14 is placed on the crank space core segments 2, aligned and connected thereto to a cylinder crankcase core unit 16. This can then be subjected to the casting process in a known manner.
  • Crank space 7, camshaft space, cooling jackets 13 and outer shape of the cylinder crankcase are formed by a core assembly 1 with repeating core modules, which are formed by the crank space core segments 2, the cooling core segments 14.
  • the core modules can be used to produce cylinder blocks with different numbers of cylinders.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

L'invention concerne un procédé pour la fabrication d'un bloc-moteur moulé à refroidissement liquide d'un moteur à combustion interne à pistons alternatifs comprenant au moins deux pistons agissant sur des coudes de vilebrequin d'un vilebrequin, des chambres de cylindres (4) pour la réception des pistons et un carter de vilebrequin (7) dans lequel des parois pour palier principal (5) pour les paliers principaux d'un vilebrequin sont disposées entre les chambres de cylindre (4), le bloc-moteur étant moulé en utilisant plusieurs segments de base de carter de vilebrequin (2), les segments de base de carter de vilebrequin (2) étant alignés et connectés entre eux avant le processus de coulée. Pour permettre une fabrication facile mais flexible d'un bloc-moteur moulé, au moins une zone latérale de paroi interne (8) et au moins une zone latérale de paroi externe (9) du bloc-moteur doivent être formées par un seul segment de base de carter de vilebrequin (2).
PCT/AT2018/060036 2017-02-14 2018-02-09 Procédé pour la fabrication d'un bloc-moteur moulé à refroidissement liquide Ceased WO2018148769A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50119/2017 2017-02-14
ATA50119/2017A AT519596B1 (de) 2017-02-14 2017-02-14 Verfahren zur herstellung eines gegossenen, flüssigkeitsgekühlten zylinderkurbelgehäuses

Publications (1)

Publication Number Publication Date
WO2018148769A1 true WO2018148769A1 (fr) 2018-08-23

Family

ID=61244321

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT2018/060036 Ceased WO2018148769A1 (fr) 2017-02-14 2018-02-09 Procédé pour la fabrication d'un bloc-moteur moulé à refroidissement liquide

Country Status (2)

Country Link
AT (1) AT519596B1 (fr)
WO (1) WO2018148769A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111451453A (zh) * 2020-04-01 2020-07-28 陕西柴油机重工有限公司 一种机体金木结构复杂模具制作方法的应用
US20250163833A1 (en) * 2023-11-22 2025-05-22 GM Global Technology Operations LLC Shaped core for main bearing oil feed groove

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113941691B (zh) * 2021-12-21 2022-03-04 象山同家模具制造有限公司 一种自动抽芯的铸造模具

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3302250A (en) * 1963-12-18 1967-02-07 Gen Motors Corp Core box and molding assembly for internal combustion engine blocks
GB2211122A (en) * 1987-10-22 1989-06-28 Agustin Arana Erana Joining blow core parts together,by a further blowing operation
DE4326157C1 (de) * 1993-08-04 1994-05-05 Daimler Benz Ag Gießform für ein Zylinderkurbelgehäuse einer Hubkolben-Brennkraftmaschine
DE10225667A1 (de) * 2001-06-11 2002-12-19 Gen Motors Corp Gießen von Motorblöcken
WO2008059330A1 (fr) * 2006-11-17 2008-05-22 Toyota Jidosha Kabushiki Kaisha Bloc-cylindres et procédé permettant de produire un bloc-cylindres
WO2014085430A2 (fr) * 2012-11-27 2014-06-05 Quinton Aaron S Ensemble noyau de moulage de moteur stabilisé, procédé pour réaliser un corps de moteur et corps de moteur formé par celui-ci

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10211053A1 (de) * 2002-03-13 2003-10-09 Vaw Ver Aluminium Werke Ag Verfahren zum Gießen von Zylinderkurbelgehäusen und Kernpaket für das Gießen von Zylinderkurbelgehäusen, Kernkasten und Kernpaket

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3302250A (en) * 1963-12-18 1967-02-07 Gen Motors Corp Core box and molding assembly for internal combustion engine blocks
GB2211122A (en) * 1987-10-22 1989-06-28 Agustin Arana Erana Joining blow core parts together,by a further blowing operation
DE4326157C1 (de) * 1993-08-04 1994-05-05 Daimler Benz Ag Gießform für ein Zylinderkurbelgehäuse einer Hubkolben-Brennkraftmaschine
DE10225667A1 (de) * 2001-06-11 2002-12-19 Gen Motors Corp Gießen von Motorblöcken
WO2008059330A1 (fr) * 2006-11-17 2008-05-22 Toyota Jidosha Kabushiki Kaisha Bloc-cylindres et procédé permettant de produire un bloc-cylindres
WO2014085430A2 (fr) * 2012-11-27 2014-06-05 Quinton Aaron S Ensemble noyau de moulage de moteur stabilisé, procédé pour réaliser un corps de moteur et corps de moteur formé par celui-ci

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111451453A (zh) * 2020-04-01 2020-07-28 陕西柴油机重工有限公司 一种机体金木结构复杂模具制作方法的应用
US20250163833A1 (en) * 2023-11-22 2025-05-22 GM Global Technology Operations LLC Shaped core for main bearing oil feed groove
US12503966B2 (en) * 2023-11-22 2025-12-23 GM Global Technology Operations LLC Shaped core for main bearing oil feed groove

Also Published As

Publication number Publication date
AT519596A1 (de) 2018-08-15
AT519596B1 (de) 2022-07-15

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