EP0119499B1 - Zylinderkopf und Verfahren zur Herstellung - Google Patents

Zylinderkopf und Verfahren zur Herstellung Download PDF

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Publication number
EP0119499B1
EP0119499B1 EP84101767A EP84101767A EP0119499B1 EP 0119499 B1 EP0119499 B1 EP 0119499B1 EP 84101767 A EP84101767 A EP 84101767A EP 84101767 A EP84101767 A EP 84101767A EP 0119499 B1 EP0119499 B1 EP 0119499B1
Authority
EP
European Patent Office
Prior art keywords
cylinder head
heat
fibres
sheathing
insulating lining
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
EP84101767A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0119499A1 (de
Inventor
Dieter Dr. Dipl.-Ing. Fingerle
Ulf Dr. Dipl.-Mineraloge Dworak
Ulrich Dr. Dipl.-Ing. Krohn
Hans Dr. Dipl.-Chem. Olapinski
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.)
Feldmuehle AG
Original Assignee
Feldmuehle 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=6193830&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0119499(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Feldmuehle AG filed Critical Feldmuehle AG
Publication of EP0119499A1 publication Critical patent/EP0119499A1/de
Application granted granted Critical
Publication of EP0119499B1 publication Critical patent/EP0119499B1/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
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B77/00—Component parts, details or accessories, not otherwise provided for
    • F02B77/02—Surface coverings of combustion-gas-swept parts
    • 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
    • F02B77/00—Component parts, details or accessories, not otherwise provided for
    • F02B77/11—Thermal or acoustic insulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2203/00—Non-metallic inorganic materials
    • F05C2203/08—Ceramics; Oxides
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/92—Fire or heat protection feature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/131—Glass, ceramic, or sintered, fused, fired, or calcined metal oxide or metal carbide containing [e.g., porcelain, brick, cement, etc.]
    • Y10T428/1314—Contains fabric, fiber particle, or filament made of glass, ceramic, or sintered, fused, fired, or calcined metal oxide, or metal carbide or other inorganic compound [e.g., fiber glass, mineral fiber, sand, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1328—Shrinkable or shrunk [e.g., due to heat, solvent, volatile agent, restraint removal, etc.]
    • Y10T428/1331—Single layer [continuous layer]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249924—Noninterengaged fiber-containing paper-free web or sheet which is not of specified porosity
    • Y10T428/249928—Fiber embedded in a ceramic, glass, or carbon matrix
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/256—Heavy metal or aluminum or compound thereof
    • Y10T428/257—Iron oxide or aluminum oxide
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension

Definitions

  • the present invention relates to the cylinder head of an internal combustion engine with a metal-encapsulated, heat-insulating lining of the exhaust pipe, the heat-insulating lining consisting of a body made of highly heat-resistant material with a coating made of inorganic fibers.
  • the invention also relates to a method for producing the heat-insulating lining to be used according to the invention.
  • Heat-insulating linings in the form of hollow molded sintered bodies made of ceramic materials and their use in hot gas pipes, such as Exhaust pipes in the cylinder head and exhaust manifolds are known.
  • These hollow sintered moldings are e.g. encapsulated with metal in the manufacture of a cylinder head.
  • the interior of the hollow shaped sintered body can, if necessary, be filled with molding sand in a manner known per se in order to avoid destruction of the shaped sintered body by the pressures occurring during casting.
  • a disadvantage of these proposals is e.g. with silicon carbide and aluminum oxide the insufficient insulation effect, while from other materials, e.g. Sintered moldings made from quartz have an unsatisfactory strength.
  • DE-B 2750290 provides an aluminum titanate with 50 to 60% by weight of aluminum oxide, 40 to 45% by weight of titanium oxide, 2 to 5% by weight of kaolin and 0.1 to 1% by weight of magnesium silicate and material properties that are especially tailored for the area of application in question in front.
  • aluminum titanate has a very low thermal conductivity, this proposal has not been able to gain widespread acceptance.
  • a particular disadvantage is the still too low strength of the aluminum titanate and further that only thin wall thicknesses of approximately 2 to 3 mm of the sintered molded body can be achieved, so that the insulation effect that can actually be achieved still remains unsatisfactory.
  • the low temperature resistance and the intensive cooling of the aluminum that is required result in high energy losses.
  • a heat-insulating lining for the cylinder head of an internal combustion engine is known from US-A 4346556.
  • the lining consists of a preformed fiber body, which is coated on the inside with a coating of glass and silicon oxide cement.
  • a disadvantage of this known lining is the low strength, so that it is not possible to pour it into a cylinder head and the fastening in the exhaust duct is carried out by means of a wire mesh made of nickel steel which is intended as a cushion.
  • DE-A 2642486 sees a method for producing a cylinder head, in which a heat-insulated lining made of highly heat-resistant material is used, which is provided on the outer surface with a fiber material that withstands the casting temperature of the casting material.
  • DE-A 2642486 does not contain any information about the insulating effect of the base body covered with fiber mass (portliner), so that it can be assumed that the insulation should only be brought about by the fiber covering.
  • the object of the present invention is therefore to eliminate these known disadvantages and to improve the heat-insulating effect and the thermal and mechanical resilience of the sintered moldings which have become known as heat-insulating linings.
  • the invention intends to provide a heat-insulating lining which is also suitable for sheathing with aluminum, has an excellent insulating effect and has an increased thermal and mechanical strength.
  • Another object of the invention is to also use ceramic materials which, because of their inadequate insulating effect and / or their low mechanical and thermal resistance, have not been able to establish themselves on a broad level in the known structural solutions.
  • the present invention provides the characterizing features of claim 1 in a cylinder head of the type described in the introduction.
  • the present invention makes it possible to produce heat-insulating linings for hot gas pipes to be encapsulated with metal, with a considerably higher wall thickness, and thereby to achieve improved insulation effects.
  • the wall thickness of the heat-insulating lining according to the invention can be up to three times higher than that of the sintered moldings previously proposed for this purpose.
  • the invention thus makes it possible to manufacture cylinder heads and downstream exhaust gas guides from aluminum instead of gray cast iron, without the need for increased cooling.
  • the heat-insulating lining according to the invention is also outstandingly suitable for sheathing with gray cast iron, in particular when the wall thickness of the gray cast iron sheath is very high and therefore high pressure forces occur when the cast melt solidifies.
  • the elastic fiber covering acts as a buffer against the compressive forces that occur during casting through solidification of the melt and prevents deformation or destruction of the heat-insulating lining by relieving stress peaks that occur due to mass accumulation, especially when casting with gray cast iron, but also with aluminum castings.
  • the heat-insulating lining according to the invention is produced by firstly, in a manner known per se, a sintered molded body made of ceramic material, e.g. by slip casting, is produced and sintered in the usual way.
  • an envelope containing or consisting of inorganic fibers is applied to this shaped sintered body.
  • the inorganic fibers are mixed with an organic or inorganic binder and applied to the shaped sintered body.
  • the same ceramic material is preferably used as the inorganic binder, from which the sintered molded body to be coated with the fibers is also made.
  • Mineral fibers have proven to be particularly suitable, in particular fibers made from aluminum oxide, zirconium oxide, mullite or kaolinite.
  • the layer thickness of the covering essentially determines the manageability when casting with a metallic melt and the heat-insulating effect. Layer thicknesses of 1 to 7 mm have proven to be particularly suitable, the covering having a density of 0.8 to 1.2 g / cm 3 .
  • Ceramic materials for producing the shaped sintered body to be coated with inorganic fibers have proven to be particularly suitable: mullite, zirconium oxide, magnesium aluminum silicate (MAS), in particular cordierite, magnesium aluminum titanate (MAT), aluminum titanate (AT) or lithium aluminum silicate (LAS), of which aluminum titanate is particularly suitable. Mixtures of these ceramic materials are also suitable for producing the sintered molded body.
  • the above-mentioned ceramic materials in the form of slip suspensions are used to connect the inorganic fibers to the sintered shaped body.
  • slip suspensions of such ceramic materials are used, from which the sintered molding to be encased is also made.
  • a very particularly preferred embodiment has proven to be a sintered shaped body made of aluminum titanate, which contains a sheath made of inorganic fibers which are fastened to the shaped body with aluminum titanate as a binder.
  • organic binders for the production of the casing are also possible. Even if these binders are burned during the heating carried out after the application of the inorganic fibers to evaporate water or solvent, the adhesion of the inorganic fibers to the sintered molded body is sufficient for many areas of application. In this case, the covering of the shaped sintered body consists only of inorganic fibers.
  • a particularly preferred method for producing the heat-insulating lining according to the invention consists in spraying inorganic fibers, which are contained in a slip solution consisting of ceramic material, onto a sintered molded body made of ceramic material.
  • an exhaust pipe 4 is shown in a cylinder 5 of an internal combustion engine, which is partially shown.
  • the heat-insulating lining 1 of the exhaust pipe 45 consists of a sintered molded body 2 made of aluminum titanate with a wall thickness of 2 mm and a covering 3 made of kaolinite fibers, which are connected to the sintered molded body 2 using aluminum titanate as a binder.
  • the layer thickness of the covering 3 is 5 mm.
  • the density of the coating is 1.05 g / cm 3 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Thermal Insulation (AREA)
  • Exhaust Silencers (AREA)
EP84101767A 1983-03-18 1984-02-21 Zylinderkopf und Verfahren zur Herstellung Expired EP0119499B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833309699 DE3309699A1 (de) 1983-03-18 1983-03-18 Waermeisolierende auskleidung
DE3309699 1983-03-18

Publications (2)

Publication Number Publication Date
EP0119499A1 EP0119499A1 (de) 1984-09-26
EP0119499B1 true EP0119499B1 (de) 1987-06-24

Family

ID=6193830

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84101767A Expired EP0119499B1 (de) 1983-03-18 1984-02-21 Zylinderkopf und Verfahren zur Herstellung

Country Status (5)

Country Link
US (1) US4526824A (enrdf_load_stackoverflow)
EP (1) EP0119499B1 (enrdf_load_stackoverflow)
JP (1) JPS59175693A (enrdf_load_stackoverflow)
DE (2) DE3309699A1 (enrdf_load_stackoverflow)
ES (1) ES530679A0 (enrdf_load_stackoverflow)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
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DE3346394C2 (de) * 1983-12-22 1986-09-04 Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart Hohler, rohrartiger Keramikkörper
DE3444406A1 (de) * 1984-12-05 1986-06-05 Kolbenschmidt AG, 7107 Neckarsulm Gegossene bauteile fuer brennkraftmaschinen mit eingegossenen bewehrungskoerpern sowie verfahren zur herstellung der verbindung zwischen den bauteilen und den bewehrungskoerpern
DE3530924A1 (de) * 1985-08-29 1987-03-12 Alcan Aluminiumwerke Hitzebestaendiges bauteil und verfahren zu dessen herstellung
DE3638658C1 (de) * 1986-11-12 1988-04-21 Daimler Benz Ag Waermedaemmende Auskleidung fuer eine Gasturbine
US4770930A (en) * 1986-11-24 1988-09-13 Martin Marietta Energy Systems, Inc. Multilayered thermal insulation formed of zirconia bonded layers of zirconia fibers and metal oxide fibers and method for making same
DE3706209C1 (de) * 1987-02-26 1987-10-29 Feldmuehle Ag Sinterformkoerper auf Basis von Aluminiumtitanat und Verfahren zu seiner Herstellung,sowie dessen Verwendung
US5260116A (en) * 1987-03-24 1993-11-09 Ngk Insulators, Ltd. Ceramicm port liners
DE3852513T2 (de) * 1987-03-24 1995-07-13 Ngk Insulators Ltd Zu umgiessendes keramisches Material und keramische Kanalauskleidungen.
DE3711433A1 (de) * 1987-04-04 1988-10-20 Mahle Gmbh Luftgekuehlter leichtmetallzylinder fuer zweitaktmotoren
JPH07111155B2 (ja) * 1987-04-11 1995-11-29 いすゞ自動車株式会社 断熱エンジン構造及びその製造方法
JPH01163444A (ja) * 1987-12-18 1989-06-27 Toyota Autom Loom Works Ltd シリンダヘッドのインテークポート
DE3843663A1 (de) * 1988-12-23 1990-06-28 Gruenzweig & Hartmann Montage Waermedaemmung fuer heisse gase fuehrende gussbauteile
US5340783A (en) * 1989-01-30 1994-08-23 Lanxide Technology Company, Lp Method of producing self-supporting aluminum titanate composites and products relating thereto
US5139979A (en) * 1989-01-30 1992-08-18 Lanxide Technology Company, Lp Method of producing self-supporting aluminum titanate composites and products relating thereto
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DE3926919C2 (de) * 1989-08-16 1998-02-05 Motoren Werke Mannheim Ag Abgaskanal mit isolierendem Leitungselement
JP2790866B2 (ja) * 1989-08-24 1998-08-27 日産自動車株式会社 燃焼装置の排気通路
EP0644864B1 (en) * 1992-06-12 1996-12-11 Minnesota Mining And Manufacturing Company Monolithic ceramic/fiber reinforced ceramic composite
US5593745A (en) * 1994-02-24 1997-01-14 Caterpillar Inc. Insulated port liner assembly
JP3011076B2 (ja) * 1995-10-31 2000-02-21 トヨタ自動車株式会社 内燃機関のシリンダヘッド
DE19542944C2 (de) * 1995-11-17 1998-01-22 Daimler Benz Ag Brennkraftmaschine und Verfahren zum Aufbringen einer Wärmedämmschicht
DE19738622C2 (de) 1997-09-04 2003-06-12 Daimler Chrysler Ag Abgasleitung für eine einen Katalysator aufweisende Abgasanlage einer Verbrennungskraftmaschine
DE10029508B4 (de) * 2000-06-21 2008-11-20 Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr Kanaleinheit für den Ladungswechsel von Kolbenmaschinen und Verfahren zu ihrer Herstellung
US6725656B2 (en) 2001-12-07 2004-04-27 Dan T. Moore Company Insulated exhaust manifold
US20040177609A1 (en) * 2001-12-07 2004-09-16 Moore Dan T. Insulated exhaust manifold having ceramic inner layer that is highly resistant to thermal cycling
EP2171235A1 (en) * 2007-06-01 2010-04-07 Rotec Design LTD Improved low heat rejection high efficiency engine system
DE102007026123B4 (de) * 2007-06-05 2017-12-21 Volkswagen Ag Zylinderkopf einer Brennkraftmaschine
US7950441B2 (en) * 2007-07-20 2011-05-31 GM Global Technology Operations LLC Method of casting damped part with insert
DE102011018281A1 (de) * 2011-04-20 2012-10-25 Volkswagen Aktiengesellschaft Zylinderkopf einer Brennkraftmaschine und Verfahren zur Herstellung eines Zylinderkopfs
DE102011119219B4 (de) * 2011-11-15 2019-01-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zur Herstellung eines wärmedämmenden Isolationselements für Hochtemperaturanwendungen
DE102012025283A1 (de) * 2012-12-21 2014-06-26 Mahle International Gmbh Kolben für einen Verbrennungsmotor und Verfahren zu seiner Herstellung
DE102017121826A1 (de) 2017-09-20 2017-11-16 FEV Europe GmbH Zylinderkopf für eine Brennkraftmaschine und Verfahren zur Herstellung eines Zylinderkopfes
DE102021201476A1 (de) 2021-02-17 2022-08-18 Volkswagen Aktiengesellschaft Gehäuse umfassend mindestens einen Kanal zum Führen eines Kältemittels sowie Verfahren zum Herstellen eines entsprechenden Gehäuses
CN113981416B (zh) * 2021-12-29 2022-03-22 上海陛通半导体能源科技股份有限公司 多功能晶圆预处理腔及化学气相沉积设备

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JPS5852451A (ja) * 1981-09-24 1983-03-28 Toyota Motor Corp 耐熱・断熱性軽合金部材およびその製造方法

Also Published As

Publication number Publication date
ES8600488A1 (es) 1985-10-01
ES530679A0 (es) 1985-10-01
DE3464402D1 (en) 1987-07-30
JPS59175693A (ja) 1984-10-04
DE3309699A1 (de) 1984-09-27
DE3309699C2 (enrdf_load_stackoverflow) 1990-01-04
US4526824A (en) 1985-07-02
EP0119499A1 (de) 1984-09-26

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