EP0056107B1 - Zylinderkopf für eine Brennkraftmaschine - Google Patents

Zylinderkopf für eine Brennkraftmaschine Download PDF

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Publication number
EP0056107B1
EP0056107B1 EP81109612A EP81109612A EP0056107B1 EP 0056107 B1 EP0056107 B1 EP 0056107B1 EP 81109612 A EP81109612 A EP 81109612A EP 81109612 A EP81109612 A EP 81109612A EP 0056107 B1 EP0056107 B1 EP 0056107B1
Authority
EP
European Patent Office
Prior art keywords
cylinder head
inserts
combustion chamber
insert
sealing surface
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
Application number
EP81109612A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0056107A1 (de
Inventor
Robert Krczal
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.)
Kloeckner Humboldt Deutz AG
Original Assignee
Kloeckner Humboldt Deutz 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6122501&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0056107(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Kloeckner Humboldt Deutz AG filed Critical Kloeckner Humboldt Deutz AG
Priority to AT81109612T priority Critical patent/ATE13457T1/de
Publication of EP0056107A1 publication Critical patent/EP0056107A1/de
Application granted granted Critical
Publication of EP0056107B1 publication Critical patent/EP0056107B1/de
Expired legal-status Critical Current

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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
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/26—Cylinder heads having cooling means
    • F02F1/36—Cylinder heads having cooling means for liquid cooling
    • F02F1/38—Cylinder heads having cooling means for liquid cooling the cylinder heads being of overhead valve type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • 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
    • F02F2001/244—Arrangement of valve stems in cylinder heads
    • F02F2001/245—Arrangement of valve stems in cylinder heads the valve stems being orientated at an angle with the cylinder axis
    • 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
    • F02F2001/248—Methods for avoiding thermal stress-induced cracks in the zone between valve seat openings

Definitions

  • the invention relates to a cylinder head made of an aluminum alloy for an internal combustion engine with at least one surface serving as the combustion chamber floor, which has at least two openings for gas exchange valves and at least one bore for an injection nozzle and / or ignition aid, and also with a sealing surface delimiting the combustion chamber floor.
  • the stress on the cylinder head of an internal combustion engine in the area of the combustion chamber floor and in the area of the sealing surface between the cylinder head and the cylinder tube places two essential demands on the material.
  • the material of the bridge section between the gas exchange valves should have a high ductility (thermal shock resistance) and the sealing surface between the cylinder head and the cylinder barrel should have a high residual hardness at elevated temperatures as well as high resistance to plastic deformation at high temperatures (pressure creep resistance).
  • the steel sheet insert and the cylinder head have different thermal expansion. Overall, this can lead to the situation becoming looser, which can result in serious damage.
  • Another significant disadvantage of the known steel sheet insert is that the cast aluminum alloy can only be treated to a small extent with metal additives which increase the thermal shock resistance of the cast aluminum material. This is due in particular to the fact that, due to the loose connection of the steel sheet insert mentioned above, this insert has a notch effect which results in an increased tendency for the cylinder head to crack in the area of the insert.
  • combustion chamber floor area located between the gas exchange valves and the bore for the injection nozzle and / or ignition aid, on the one hand, and the sealing surface area delimiting the combustion chamber, on the other hand are each provided with an insert made of dispersion-hardened sintered aluminum.
  • an insert made of dispersion-hardened sintered aluminum it can be achieved with the cylinder head according to the invention that the insert and the cast aluminum alloy form an intimate bond in which aluminum is made from the sintered aluminum insert the light metal alloy diffuses. This occurs, for example, when this insert is cast around, or, if the insert is to be mechanically introduced into the cylinder head, during a heat treatment as part of a curing process.
  • the cast aluminum alloy of the cylinder head and the dispersion-hardened sintered aluminum inserts have approximately the same coefficient of thermal expansion, so that thermal stresses are largely avoided even when exposed to very high temperatures and there is therefore no risk of falling out with a dispersion-hardened sintered aluminum insert. Due to this intimate bond, a notch effect cannot be assured from the dispersion-hardened sintered aluminum insert, so that these inserts can also be provided for cylinder heads which are made from heat-resistant aluminum alloys treated with metal additives.
  • the good heat resistance properties e.g. tensile strength, hardness
  • the good heat resistance properties e.g. tensile strength, hardness
  • dispersion-hardened sintered aluminum or of sintered aluminum powder are known in principle (Lueger, Lexikon dertechnik, 4th edition, pp. 572, 637; Aluminum-Taschenbuch, 14th edition, publisher: Aluminum -Zentrale, Düsseldorf, p. 153).
  • sintered aluminum powder has already been used to improve the heat resistance of light metal pistons (US-A-3065073).
  • the sintered aluminum parts are preferably cast into the cylinder head.
  • the sintered aluminum inserts can also be pressed into the cylinder head and mechanically anchored there.
  • Another option for connecting the components is welding by means of electron beam, laser beam or other welding techniques.
  • the dispersoids of the sintered aluminum inserts are preferably adapted to the respective material requirements in the sealing surface area or valve land area. Due to the presence of the inserts according to the invention, the cylinder head itself can be made of a less heat-resistant and therefore more castable aluminum alloy than known high-temperature-resistant aluminum alloys for light metal cylinder heads (e.g. HID RR 350), which do not need to be aged. In addition to the casting advantages that simplify processing, such less heat-resistant aluminum alloys also offer the advantage of lower material costs.
  • 1 denotes the cylinder head
  • 2 the openings for the gas exchange valves
  • 3 the bore for an injection nozzle.
  • Inserts 5 and 6 made of dispersion-hardened sintered aluminum are provided in the sealing surface and in the web section.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
EP81109612A 1981-01-13 1981-11-11 Zylinderkopf für eine Brennkraftmaschine Expired EP0056107B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81109612T ATE13457T1 (de) 1981-01-13 1981-11-11 Zylinderkopf fuer eine brennkraftmaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3100755 1981-01-13
DE19813100755 DE3100755A1 (de) 1981-01-13 1981-01-13 Zylinderkopf fuer eine brennkraftmaschine

Publications (2)

Publication Number Publication Date
EP0056107A1 EP0056107A1 (de) 1982-07-21
EP0056107B1 true EP0056107B1 (de) 1985-05-22

Family

ID=6122501

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81109612A Expired EP0056107B1 (de) 1981-01-13 1981-11-11 Zylinderkopf für eine Brennkraftmaschine

Country Status (5)

Country Link
US (1) US4487175A (cg-RX-API-DMAC7.html)
EP (1) EP0056107B1 (cg-RX-API-DMAC7.html)
AT (1) ATE13457T1 (cg-RX-API-DMAC7.html)
CA (1) CA1196537A (cg-RX-API-DMAC7.html)
DE (2) DE3100755A1 (cg-RX-API-DMAC7.html)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3327168A1 (de) * 1983-07-28 1985-02-07 Klöckner-Humboldt-Deutz AG, 5000 Köln Zylinderkopf aus einem eisenwerkstoff
FR2606707B1 (fr) * 1986-11-18 1989-05-05 Renault Structure metallique composite resistante a la fatigue thermique
IT1232718B (it) * 1989-04-13 1992-03-04 Fiat Auto Spa Procedimento per realizzare i cosidetti piatti-fiamma di teste per motori a combustione interna e relativo prodotto
DE4124811C1 (cg-RX-API-DMAC7.html) * 1991-07-26 1992-08-06 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De
DE4141437C1 (en) * 1991-12-16 1992-12-03 Volkswagen Ag, 3180 Wolfsburg, De Light metal cylinder head for internal combustion engine - mfd. using mandrel with characteristics of aluminium@-silicon@-magnesium@ casting
DE4328619C2 (de) * 1993-08-26 1995-08-10 Peak Werkstoff Gmbh Partiell verstärktes Al-Gußbauteil und Verfahren zu dessen Herstellung
US6443211B1 (en) * 1999-08-31 2002-09-03 Cummins Inc. Mettallurgical bonding of inserts having multi-layered coatings within metal castings
DE10133757A1 (de) 2001-07-11 2003-02-13 Mahle Ventiltrieb Gmbh Einsatz als Bodenbereich eines Zylinderkopfes
JP5101838B2 (ja) * 2006-05-16 2012-12-19 ヤンマー株式会社 金属部材の表面硬化方法
AT502971B1 (de) * 2006-12-07 2008-05-15 Avl List Gmbh Zylinderkopf für eine brennkraftmaschine
EP2024116B1 (de) 2006-05-26 2011-11-02 AVL List GmbH Zylinderkopf für eine brennkraftmaschine
US8485243B2 (en) 2007-03-30 2013-07-16 Caterpillar Inc. Method for casting a component
US20080241579A1 (en) * 2007-03-30 2008-10-02 Caterpillar Inc. Method for casting a component
US8672018B2 (en) * 2012-08-20 2014-03-18 GM Global Technology Operations LLC Cylinder head and method
WO2017082846A1 (en) 2015-11-11 2017-05-18 Ford Otomotiv Sanayi A. S. Multi-piece cylinder head

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2904940A1 (de) * 1979-02-09 1980-08-21 Kloeckner Humboldt Deutz Ag Leichtmetallzylinderkopf fuer eine ventilgesteuerte brennkraftmaschine

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE837467C (de) * 1946-07-17 1952-04-28 Aluminium Ind Ag Verfahren zur Herstellung von Leichtmetallkoerpern
FR992440A (fr) * 1948-08-16 1951-10-18 Alliance Europ Perfectionnements apportés aux moteurs à combustion interne
US3065073A (en) * 1958-06-09 1962-11-20 Aluminium Ind Ag Method for producing composite bodies of aluminum and sintered aluminum powder
DE1426122A1 (de) * 1960-05-27 1969-03-27 Spencer Boyd L Einrichtungen an Zylinderbloecken von Verbrennungskraftmaschinen
GB1079804A (en) * 1964-09-07 1967-08-16 Mitsubishi Heavy Ind Ltd A method of minimising cracking of component members of internal combustion engines at locations thereof which are subjected to locally concentrated breaking stresses
US3316888A (en) * 1965-01-15 1967-05-02 Continental Aviat & Eng Corp Cylinder head construction
DE2059219A1 (de) * 1970-12-02 1972-06-08 Kloeckner Humboldt Deutz Ag Leichtmetallzylinderkopf
DE2061930C2 (de) * 1970-12-16 1983-10-20 Klöckner-Humboldt-Deutz AG, 5000 Köln Leichtmetallzylinderkopf für luftgekühlte Hubkolbenbrennkraftmaschinen
US3830209A (en) * 1973-03-05 1974-08-20 Robert Jones Cylinder head and method of reconstructing same
JPS54141209U (cg-RX-API-DMAC7.html) * 1978-03-27 1979-10-01
DE2832691A1 (de) * 1978-07-26 1980-02-07 Spencer Heads Inc Einsatz fuer die zuendflaeche an einem zylinderkopf eines verbrennungsmotors
SU731013A1 (ru) * 1978-08-14 1980-04-30 Владимирский политехнический институт Головка цилиндра дл двигател внутреннего сгорани
DE2838797A1 (de) * 1978-09-06 1980-04-10 Kloeckner Humboldt Deutz Ag Leichtmetallzylinderkopf
SE433376B (sv) * 1979-10-22 1984-05-21 Saab Scania Ab Kolvmotor med vermeisolerat forbrenningsrum

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2904940A1 (de) * 1979-02-09 1980-08-21 Kloeckner Humboldt Deutz Ag Leichtmetallzylinderkopf fuer eine ventilgesteuerte brennkraftmaschine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Lueger, Lexikon der Technik, Band 3: Werkstoffe und Werkstoffprüfung; Aluminium Taschenbuch *

Also Published As

Publication number Publication date
ATE13457T1 (de) 1985-06-15
DE3100755A1 (de) 1982-09-02
DE3100755C2 (cg-RX-API-DMAC7.html) 1989-02-23
US4487175A (en) 1984-12-11
EP0056107A1 (de) 1982-07-21
DE3170643D1 (en) 1985-06-27
CA1196537A (en) 1985-11-12

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