EP0899042B1 - Méthode de fabrication d'une culasse moulée pour un moteur à combustion - Google Patents

Méthode de fabrication d'une culasse moulée pour un moteur à combustion Download PDF

Info

Publication number
EP0899042B1
EP0899042B1 EP98113967A EP98113967A EP0899042B1 EP 0899042 B1 EP0899042 B1 EP 0899042B1 EP 98113967 A EP98113967 A EP 98113967A EP 98113967 A EP98113967 A EP 98113967A EP 0899042 B1 EP0899042 B1 EP 0899042B1
Authority
EP
European Patent Office
Prior art keywords
cylinder head
displacer
accordance
water chamber
cast cylinder
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
EP98113967A
Other languages
German (de)
English (en)
Other versions
EP0899042A1 (fr
Inventor
Jochen Dr. Betsch
Arnold Kaden
Georg Stumpp
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.)
Mercedes Benz Group AG
Original Assignee
DaimlerChrysler AG
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 DaimlerChrysler AG filed Critical DaimlerChrysler AG
Publication of EP0899042A1 publication Critical patent/EP0899042A1/fr
Application granted granted Critical
Publication of EP0899042B1 publication Critical patent/EP0899042B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product

Definitions

  • the invention relates to a method for manufacturing of a cast cylinder head for an internal combustion engine according to the closer in the preamble of claim 1 defined type, as well as a cast cylinder head for an internal combustion engine according to that in the preamble of claim 7 or claim 8 art defined.
  • cylinder heads are made almost exclusively by casting manufactured. Usually molds are used, the outer edge of them by molds, e.g. from steel, be formed. For the production of inlet and outlet channels as well as a room for the cooling water in the Cylinder head, the so-called water space, are in the molds made from poured sand mounted.
  • the sand cores first mechanically reduced and then mostly with compressed air from the cavities thus formed in Blown cylinder head.
  • U.S. Patent 4,690,104 describes a cast-made one Cylinder head for an internal combustion engine, which has an opening in the upper area, in which is screwed into a cup-shaped part. Through this part, the cooling water flow should be in the direction of the combustion chambers are directed, the opening used to remove the pouring sand at the same time becomes.
  • JP-A 56 148647 describes a cylinder head, in whose water space there is a cross section triangular sinker with a Flow hole is located.
  • a cylinder head which on top with one by screws attached cover plate is provided.
  • a distributor plate with additional screws attached, which is to cause that through the cylinder head flowing cooling water mostly in the Located near the combustion chambers.
  • the displacement body according to the invention which in remains in the water space of the cylinder head an improved distribution of the coolant flow in the cylinder head, especially a concentration of Coolant flow to the top of the bottom Area of the cylinder head arranged combustion chambers.
  • This improved cooling advantageously has one lower required power of a water pump, one lower fuel consumption and higher knock tolerance result.
  • Another advantage of being placed in the water space Displacement body is that thereby the amount of coolant the internal combustion engine significantly reduced can be. This reduction leads to a shorter one Warm-up phase of the internal combustion engine, which causes pollutant emissions and reduced friction, driving comfort, Heating response and defrost speed and defog speed of the disks increase.
  • the present invention offers a further positive aspect Displacement body in that it is used for stiffening of the cylinder head can contribute.
  • the fixing areas according to the invention allow one Fixation of the sinker in a shape for the sand core and serve for connection after the casting process with the rest of the cylinder head. It happens for a firm connection of the sinker with the material flowing into the cavity.
  • Displacer made of a material with less Density to run as the coolant and the sinker free floating in the water room.
  • Fig. 1 shows a mold 1, which in a known manner constructed from an upper part 2 and a lower part 3 is. At its outer edge, the mold 1 limited by a molding box 4. The top 2 and the lower part 3 are designed as molds.
  • the molding box 4 is made of metal, such as Steel.
  • a Cavity 5 formed Between the upper part 2 and the lower part 3 is a Cavity 5 formed, which after the casting process forms the cylinder head.
  • the one shown in Fig. 1 Section through the mold 1 also shows one Sand core 6, the inlet and outlet channels after the casting process forms.
  • the sand core 6 is inserted in core bearings 7, which are arranged in the lower part 3.
  • sand core 8 To form a water space after the casting process there is another sand core in the cavity 5 8. As can be seen from Fig. 2, is the sand core 8 also inserted in core bearings 9, which are located in the lower part 3.
  • a displacement body is placed in the sand core 8 before the casting process 10 incorporated. This will do so achieved that before the onset of the sand core 8 of Displacement body 10 is sanded and thus the Sand core 8 only arises.
  • the pouring sand of the sand core 8 has depending on the material used for the displacement body 10 a corresponding insulation effect, to melt or evaporate the displacer 10 to prevent during the casting process.
  • the displacement body 10 has fixing areas 11, which are located in the immediate vicinity of the core bearing 9 are.
  • the arrangement of the fixing areas 11 is also anywhere in the cylinder head possible to a Allow connection to the rest of the cylinder head can.
  • the displacement body 10 first in a not shown Manufacturing mold for the sand core 8 fixed. After this The fixing areas 11 are used for the casting the rest of the cylinder head.
  • the fixing areas 11 are from the liquid material during the casting process melted, which by inlets not shown flows into the cavity 5. This results in a firm connection and thus also a fixation of the position Displacement body 10 with during the casting process material flowing into the cavity 5.
  • the displacement body 10 itself can be very simple and inexpensive from a not shown two or more parts, e.g. by pressing or Pour, be made.
  • the casting process with the Sandkern 8 can in despite its new construction be carried out in a known manner. there the displacement body 10 even stabilizes the otherwise very fragile sand core 8.
  • the rigidity and strength of the cylinder head can be increased noticeably. It can by the type of material used and the associated casting temperatures specifically Compressive or tensile stresses built up in the cylinder head become. This is due to the cooling material achieved in the cavity 5, which the displacement body 10 spanned. This makes it possible for later Operation of the cylinder head occurring loads through appropriately selected compressive or tensile preloads compensate.
  • the displacement body 10 can Structural elements to stiffen the cylinder head like posts or ribs included.
  • the displacement body shown in Fig. 1 and Fig. 2 10 has one of the cooling water conditions in the Water space adapted shape, however, are not shown in Exemplary embodiments for further optimization the flow of both solidly ribbed lattice spoiler configurations of the displacer 10 as also very simply constructed displacement body 10 imaginable.
  • the Displacement body 10 made of a material with less Density than the coolant so that the Displacement body 10 after filling the internal combustion engine with coolant due to the resulting buoyancy forces freely floating in the upper area of the Water room is located. It is possible at the Top of the cavity 5 or at the top of the Displacer 10 spacers to attach, so that even in the upper area of the water space Coolant flow is possible.
  • the main part of the coolant is hot as described above Walls of the combustion chambers concentrated.

Landscapes

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

Claims (11)

  1. Procédé pour fabriquer une culasse moulée pour un moteur à combustion interne dans un moule de coulée (1), selon lequel pour la formation de la culasse, une cavité (5) subsiste entre une partie supérieure (2) et une partie inférieure (3) du moule de coulée (1), et pour la formation d'une chambre à eau pour la culasse, on insère un noyau de sable (8) dans le moule de coulée (1), caractérisé en ce qu'avant l'opération de coulée on insère un corps de refoulement (10) dans le noyau de sable (8) pour la chambre à eau, le corps de refoulement subsistant dans la chambre à eau après l'opération de coulée.
  2. Procédé pour fabriquer une culasse moulée selon la revendication 1, caractérisé en ce qu'on remplit le corps de refoulement (10) par le sable de coulée pour le noyau en sable (8).
  3. Procédé pour fabriquer une culasse moulée selon la revendication 1 ou 2, caractérisé en ce qu'on insère le noyau de sable (8) dans le support de noyau (9).
  4. Procédé pour fabriquer une culasse moulée selon la revendication 1, 2 ou 3, caractérisé en ce que pendant l'opération de coulée, la matière plastique de la culasse se fixe au corps de refoulement (10) au niveau de parties de fixation (11) fixées.
  5. Procédé pour fabriquer une culasse moulée selon la revendication 4, caractérisé en ce que les zones de fixation sont situées à proximité directe du support de noyau (9).
  6. Procédé pour fabriquer une culasse moulée selon la revendication 1, caractérisé en ce que le corps de refoulement (10) reste librement flottant dans la chambre à eau lors de l'opération de coulée.
  7. Culasse moulée pour un moteur à combustion interne comportant une chambre à eau formée par un noyau de sable (8), fabriquée conformément au procédé selon l'une des revendications 1 à 6, dans laquelle un corps de refoulement (10) est disposé dans la chambre à eau, caractérisée en ce que des parties de fixation agencées sous la forme de disques de fermeture (11) sont disposées sur le corps de refoulement (10).
  8. Culasse moulée pour un moteur à combustion interne comportant une chambre à eau comportant une chambre à eau formée par un noyau de sable formée par un noyau de sable (8), fabriquée conformément au procédé selon l'une des revendications 1 à 6, dans laquelle un corps de refoulement (10) est disposé dans la chambre à eau, caractérisée en ce que le corps de refoulement (10) est disposé à l'état librement flottant dans la chambre.
  9. Culasse moulée selon la revendication 7 ou 8, caractérisée en ce que des entretoises sont disposées sur le côté supérieur de la cavité (5) ou sur le côté supérieur du corps de refoulement (10).
  10. Culasse moulée selon la revendication 7, 8 ou 9, caractérisée en ce que le corps de refoulement (10) est agencé sous la forme d'un spoiler pour un écoulement dans la chambre à eau.
  11. Culasse moulée selon les revendications 7 à 10, caractérisée en ce que le corps de refoulement (10) contient des éléments structurels tels que des montants ou des nervures pour le renforcement de la culasse.
EP98113967A 1997-08-13 1998-07-25 Méthode de fabrication d'une culasse moulée pour un moteur à combustion Expired - Lifetime EP0899042B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19735012A DE19735012C1 (de) 1997-08-13 1997-08-13 Verfahren zur Herstellung eines gegossenen Zylinderkopfes
DE19735012 1997-08-13

Publications (2)

Publication Number Publication Date
EP0899042A1 EP0899042A1 (fr) 1999-03-03
EP0899042B1 true EP0899042B1 (fr) 2001-11-28

Family

ID=7838814

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98113967A Expired - Lifetime EP0899042B1 (fr) 1997-08-13 1998-07-25 Méthode de fabrication d'une culasse moulée pour un moteur à combustion

Country Status (5)

Country Link
US (1) US6009844A (fr)
EP (1) EP0899042B1 (fr)
JP (1) JP3106397B2 (fr)
DE (1) DE19735012C1 (fr)
ES (1) ES2168707T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103008562A (zh) * 2012-11-27 2013-04-03 天长缸盖有限公司 一种整体缸盖铸造立浇设备
CN104707939A (zh) * 2015-04-08 2015-06-17 广西玉柴机器股份有限公司 柴油机缸盖的铸造砂芯

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19803867A1 (de) * 1998-01-31 1999-08-05 Volkswagen Ag Verfahren zum Herstellen eines Zylinderkopfes einer Brennkraftmaschine
FR2792858B1 (fr) * 1999-04-30 2001-05-25 Renault Procede, dispositif et noyau pour la realisation par moulage d'une culasse de moteur a combustion interne
DE10145876A1 (de) * 2001-09-18 2003-04-10 Daimler Chrysler Ag Vorrichtung zur Herstellung eines Druckgussbauteils mit einem Kern und einem Einlegeteil
DE10339653A1 (de) * 2003-08-28 2005-03-24 Deutz Ag Gießkernminimierter Zylinderkopf
DE102006031532B3 (de) * 2006-07-07 2008-04-17 Emil Müller GmbH Wasserlöslicher Salzkern mit Funktionsbauteil
CN102896279B (zh) * 2012-09-10 2014-09-24 江苏武蕾机械有限公司 一种使用冷芯技术生产单缸柴油机气缸盖水道砂芯的工艺
DE102014202034A1 (de) * 2014-02-05 2015-08-06 Volkswagen Aktiengesellschaft Kokille zur Herstellung von Gussteilen
CN104475687A (zh) * 2014-12-31 2015-04-01 南阳飞龙汽车零部件有限公司 一种壳模铸造铸型排气砂芯
CN108421956B (zh) * 2018-04-11 2019-08-06 安徽江淮汽车集团股份有限公司 发动机缸盖铸造模具及缸盖
DE102023125649B3 (de) 2023-09-21 2025-02-06 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Kernpaket und Zylinderkopf
CN117816913B (zh) * 2023-12-28 2024-06-21 安徽祥东高端装备股份有限公司 一种组合式泵体机壳铸造模具

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3165095A (en) * 1962-05-18 1965-01-12 Beteiligungs & Patentverw Gmbh Cylinder head
JPS56148647A (en) * 1980-04-22 1981-11-18 Nissan Motor Co Ltd Cooling water jacket of internal combustion engine cylinder head
JPS61268849A (ja) * 1985-05-24 1986-11-28 Toyota Motor Corp 内燃機関のシリンダヘツドの冷却水通路構造
DE3707256C1 (en) * 1987-03-06 1988-07-07 Halbergerhuette Gmbh Core for the casting of grey cast iron cylinder blocks
JP3498446B2 (ja) * 1995-10-26 2004-02-16 日産自動車株式会社 火花点火機関用シリンダヘッド

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103008562A (zh) * 2012-11-27 2013-04-03 天长缸盖有限公司 一种整体缸盖铸造立浇设备
CN104707939A (zh) * 2015-04-08 2015-06-17 广西玉柴机器股份有限公司 柴油机缸盖的铸造砂芯
CN104707939B (zh) * 2015-04-08 2016-08-24 广西玉柴机器股份有限公司 柴油机缸盖的铸造砂芯

Also Published As

Publication number Publication date
DE19735012C1 (de) 1998-09-03
US6009844A (en) 2000-01-04
JP3106397B2 (ja) 2000-11-06
ES2168707T3 (es) 2002-06-16
JPH11151559A (ja) 1999-06-08
EP0899042A1 (fr) 1999-03-03

Similar Documents

Publication Publication Date Title
EP2091678B1 (fr) Moule de coulée pour la coulée d'une pièce et utilisation de ce moule de coulée
EP0899042B1 (fr) Méthode de fabrication d'une culasse moulée pour un moteur à combustion
EP0974414B1 (fr) Moule de coulée et procédé de coulée pour la fabrication d'un bloc moteur
DE3544215A1 (de) Zylinderblockstruktur fuer eine mehrzylinder-brennkraftmaschine
DE8900819U1 (de) Gießform zum Metallgießen und Hülse hierfür
DE3322424C2 (fr)
EP1843029A2 (fr) Carter composité
DE2545178A1 (de) Niederdruckgiesseinrichtung
DE102017206716B4 (de) Zylinderblock eines Verbrennungsmotors
DE3613191C2 (fr)
DE60100457T2 (de) Ein verfahren zur herstellung eines zylinderblocks für eine brennkraftmaschiene
DE102009058730B4 (de) Verfahren zur Herstellung eines Motorbocks
EP2454037B1 (fr) Pièce rapportée pour un noyau de coulage et/ou un moule de coulée, et noyau et/ou moule doté de cette pièce rapportée
DE19540763C1 (de) Gehäuse für eine Hubkolben-Brennkraftmaschine
EP0280675B1 (fr) Moule pour une boîte de moteur
EP2636467B1 (fr) Dispositif de fabrication d'un bloc moteur agencé en V
EP1790865B1 (fr) Vilebrequin creux coulé
DE102005004486A1 (de) Laufbuchse zum Eingießen in einen Motorblock
DE10144662B4 (de) Verfahren zum Herstellen eines Gußteils
DE3824609C1 (fr)
DE112018003862T5 (de) Gussform und herstellungsverfahren eines gussteils
EP4585325B1 (fr) Pièce coulée sous pression de support de batterie et procédé de fabrication d'une pièce coulée sous pression de support de batterie
DE69307089T2 (de) Rippenverstärkter expandierbarer kern
DE823484C (de) Verfahren zum Giessen von Leitvorrichtungen fuer Zentrifugalpumpen oder Geblaese
DE102005022740A1 (de) Zylinderkopf für eine Brennkraftmaschine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): ES FR GB IT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 19990122

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: DAIMLERCHRYSLER AG

AKX Designation fees paid

Free format text: DE ES FR GB IT SE

17Q First examination report despatched

Effective date: 20000323

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

RBV Designated contracting states (corrected)

Designated state(s): ES FR GB IT SE

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): ES FR GB IT SE

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20020318

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2168707

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20050712

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20050714

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20050719

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20050725

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060725

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060726

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20060731

Year of fee payment: 9

EUG Se: european patent has lapsed
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20060725

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20070330

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20060726

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060726

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070725