EP0163241A2 - Elément pour moteurs à combustion interne et procédé pour sa fabrication - Google Patents

Elément pour moteurs à combustion interne et procédé pour sa fabrication Download PDF

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Publication number
EP0163241A2
EP0163241A2 EP85106211A EP85106211A EP0163241A2 EP 0163241 A2 EP0163241 A2 EP 0163241A2 EP 85106211 A EP85106211 A EP 85106211A EP 85106211 A EP85106211 A EP 85106211A EP 0163241 A2 EP0163241 A2 EP 0163241A2
Authority
EP
European Patent Office
Prior art keywords
insert
component
base material
relief
inserts
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.)
Granted
Application number
EP85106211A
Other languages
German (de)
English (en)
Other versions
EP0163241A3 (en
EP0163241B1 (fr
Inventor
Andreas Dipl.-Ing. Deuber
Edmund Siegl
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.)
Novelis Deutschland GmbH
Original Assignee
Alcan Aluminiumwerk Nuernberg GmbH
Alcan Aluminiumwerke GmbH
Alcan Deutschland 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 Alcan Aluminiumwerk Nuernberg GmbH, Alcan Aluminiumwerke GmbH, Alcan Deutschland GmbH filed Critical Alcan Aluminiumwerk Nuernberg GmbH
Publication of EP0163241A2 publication Critical patent/EP0163241A2/fr
Publication of EP0163241A3 publication Critical patent/EP0163241A3/de
Application granted granted Critical
Publication of EP0163241B1 publication Critical patent/EP0163241B1/fr
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
    • F02F3/00—Pistons 
    • F02F3/10—Pistons  having surface coverings
    • 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
    • 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
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F3/00—Pistons 
    • F02F3/10—Pistons  having surface coverings
    • F02F3/12—Pistons  having surface coverings on piston heads
    • 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 or frames
    • F02F7/0085—Materials for constructing engines or their parts
    • F02F7/0087—Ceramic materials
    • 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
    • F02F2001/249—Cylinder heads with flame plate, e.g. insert in the cylinder head used as a thermal insulation between cylinder head and combustion chamber
    • 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
    • F05C2201/00—Metals
    • F05C2201/02—Light metals
    • F05C2201/021—Aluminium

Definitions

  • the invention relates to a combustion chamber component for internal combustion engines with at least one insert made of heat-resistant, in particular ceramic material, in a recess of the component facing the combustion chamber, which is connected to the base material of the component by casting or shrinking.
  • Components made of aluminum alloys which limit the combustion chamber of internal combustion engines, are often provided with inserts made of heat-resistant, high-strength materials in order to heat the light metal material thermally and / or mechanically to reinforce areas locally.
  • a typical example is B ran space inserts in flasks. Similar inserts are also used in cylinder heads.
  • the inserts can be made of heat-resistant steels or other suitable heavy metal alloys. In recent times, ceramic materials have also been used for this purpose.
  • DE-PS 725 761 describes pistons in which the inserts are positively anchored by undercuts when the piston base material is cast around them.
  • the encapsulation material is shrunk on, stress concentrations occur in the area of the undercuts, which can easily lead to cracks in the ceramic insert.
  • the space required for an undercut is often not available on the piston head in terms of design.
  • connection technology is the clasping of the ceramic insert essentially due to the shrinkage forces that arise during the encapsulation with a largely smooth, possibly slightly curved outer surface of the insert part.
  • the object of the invention is to provide components of the type mentioned above, in which the inserts do not migrate out of the base material clasping them in engine operation, ie have a permanent, firm hold in the component base material. Furthermore should a method of manufacturing these components can be specified.
  • At least one gas pressure relief bore is provided for relieving a gas pressure building up under the inserts in the base material leading to the underside of the inserts.
  • These holes which may have a diameter of 0.01 to 10 mm according to the invention act, jerk relief channels than venting or D, ie they prevent the build up of a pressure gas cushion in the joint between the insert part and casting material.
  • the insert is first fixed in its position relative to the other component in the correspondingly prepared component or in the mold cavity of the casting mold for the component, only then are the relief bores made by suitable measures during casting and by mechanical processing in the base material of the component generated.
  • the insert is appropriately anchored in the base material by pouring or shrinking.
  • the pressing is almost impossible as the connection method, because a K would eramik emotions the mechanical stresses likely not stand.
  • the pressure relief bores provided according to the invention prevent the build-up of excess pressure in the parting plane and thus the described process of pushing out the insert.
  • the pressure of the combustion gases which now only acts on one side from the combustion chamber, will constantly press the insert or the cast-in part into its deepest position or its cast-around position in the presence of the pressure relief bores.
  • DE-OS 31 10 292 shows a piston with a ceramic insert, which likewise has a bore in the bottom of the piston head recess, which leads from the parting plane between the insert and the piston head into the interior of the piston.
  • a ceramic insert which likewise has a bore in the bottom of the piston head recess, which leads from the parting plane between the insert and the piston head into the interior of the piston.
  • the bore serving as the lubricating oil guide.
  • a vent hole can be provided essentially in the middle.
  • a relatively large ventilation cross section is created where the gases enter the space between the insert and the piston crown during engine operation.
  • a weakening of the piston due to an excessively large central bore is thereby avoided.
  • an insert here a cast part, is arranged in a piston head recess 2 of a piston 1.
  • Relief bores 4 and 5 are arranged in the bottom of the piston head recess and lead from the parting plane 6 between the insert part 3 and the piston head into the interior of the piston 1.
  • the bore 4 is arranged centrally and the bores 5 are arranged eccentrically or peripherally concentrically, forming a ring of relief bores.
  • a cylinder head 11 which facing the combustion chamber in a cylinder head recess 12 comprises an insert 13. Since there is an interruption of the upwardly curved insert due to the arrangement of the inlet and outlet channels 17 and 18, there is at least one central Ent load bore 14, which is guided away from the parting plane 16 axially parallel.
  • the peripheral I ntlastungsbohronne 15 date lead out from the parting plane 16 to the outer surface of the cylinder head.
EP85106211A 1984-06-01 1985-05-21 Elément pour moteurs à combustion interne et procédé pour sa fabrication Expired EP0163241B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3420571 1984-06-01
DE3420571A DE3420571C1 (de) 1984-06-01 1984-06-01 Bauteil fuer Verbrennungsmotoren und Verfahren zu dessen Herstellung

Publications (3)

Publication Number Publication Date
EP0163241A2 true EP0163241A2 (fr) 1985-12-04
EP0163241A3 EP0163241A3 (en) 1986-04-02
EP0163241B1 EP0163241B1 (fr) 1989-01-04

Family

ID=6237465

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85106211A Expired EP0163241B1 (fr) 1984-06-01 1985-05-21 Elément pour moteurs à combustion interne et procédé pour sa fabrication

Country Status (6)

Country Link
US (1) US4646692A (fr)
EP (1) EP0163241B1 (fr)
JP (1) JPS618449A (fr)
KR (1) KR890000752B1 (fr)
CA (1) CA1270707A (fr)
DE (2) DE3420571C1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0294091A2 (fr) * 1987-05-30 1988-12-07 Isuzu Motors Limited Structure de piston calorifugée
EP0294092A2 (fr) * 1987-05-30 1988-12-07 Isuzu Motors Limited Structure calorifugée de moteur à combustion interne calorifique
US5033427A (en) * 1987-05-30 1991-07-23 Isuzu Motors Limited Heat-insulating engine structure

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61237867A (ja) * 1985-04-15 1986-10-23 Kawasaki Heavy Ind Ltd 内燃機関のシリンダヘツド
DE3530924A1 (de) * 1985-08-29 1987-03-12 Alcan Aluminiumwerke Hitzebestaendiges bauteil und verfahren zu dessen herstellung
SE469908B (sv) * 1986-07-04 1993-10-04 Volvo Ab Förbränningsmotorkomponent med mot förbränningsgaser exponerad yta, vilken är belagd med ett termiskt isolerande material samt sätt att framställa komponenten
US4781157A (en) * 1987-12-24 1988-11-01 Ford Motor Company Multipart ceramic cylinder head
DE19848649C5 (de) * 1998-10-22 2008-11-27 Peter Greiner Kohlenstoffkolben für eine Brennkraftmaschine
US6354260B1 (en) 2000-11-14 2002-03-12 Cwn, Inc. Replaceable combustion chamber insert for two cycle engines and method for manufacturing same
US6874479B2 (en) 2003-03-21 2005-04-05 Avl List Gmbh Internal combustion engine
KR100680532B1 (ko) * 2004-12-17 2007-02-08 현대자동차주식회사 다공성 열활성체의 연소실 장착구조
JP2007044615A (ja) * 2005-08-09 2007-02-22 Chugoku Electric Power Co Inc:The 電気集塵器の運転方法
DE102012104820B4 (de) * 2012-06-04 2014-10-09 Actech Gmbh Verfahren zur Herstellung von Verbundgussteilen
CN105484892A (zh) * 2015-12-02 2016-04-13 湖南江滨机器（集团）有限责任公司 一种活塞及发动机及活塞制造方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE725761C (de) * 1940-04-03 1942-09-29 Maschf Augsburg Nuernberg Ag Kolben, insbesondere Leichtmetallkolben fuer schnellaufende Brennkraftmaschinen
US4245611A (en) * 1978-09-05 1981-01-20 General Motors Corporation Ceramic insulated engine pistons
DE3110292A1 (de) * 1981-03-17 1982-09-30 Rudolf Dr. 6800 Mannheim Wieser "kolben fuer verbrennungsmotor"
EP0072140A1 (fr) * 1981-07-31 1983-02-16 Ae Plc Piston avec insertion pourvue d'un espace de combustion
DE3328435A1 (de) * 1982-09-10 1984-03-15 Volkswagenwerk Ag, 3180 Wolfsburg Kolben fuer brennkraftmaschinen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB160790A (en) * 1920-03-27 1921-12-22 Fried Krupp Germaniawerft Ag Improvements in connecting weldable metal articles with articles which cannot be welded or are difficult to weld
US4018194A (en) * 1975-01-06 1977-04-19 Texaco Inc. Engine piston with insulated combustion chamber
DE2541966A1 (de) * 1975-09-19 1977-03-24 Vox Lumatic Gmbh Arbeitskolben fuer brennkraftmaschinen
SE433376B (sv) * 1979-10-22 1984-05-21 Saab Scania Ab Kolvmotor med vermeisolerat forbrenningsrum
GB2092709B (en) * 1981-02-07 1984-05-31 Ae Plc Securing piston crown

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE725761C (de) * 1940-04-03 1942-09-29 Maschf Augsburg Nuernberg Ag Kolben, insbesondere Leichtmetallkolben fuer schnellaufende Brennkraftmaschinen
US4245611A (en) * 1978-09-05 1981-01-20 General Motors Corporation Ceramic insulated engine pistons
DE3110292A1 (de) * 1981-03-17 1982-09-30 Rudolf Dr. 6800 Mannheim Wieser "kolben fuer verbrennungsmotor"
EP0072140A1 (fr) * 1981-07-31 1983-02-16 Ae Plc Piston avec insertion pourvue d'un espace de combustion
DE3328435A1 (de) * 1982-09-10 1984-03-15 Volkswagenwerk Ag, 3180 Wolfsburg Kolben fuer brennkraftmaschinen

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0294091A2 (fr) * 1987-05-30 1988-12-07 Isuzu Motors Limited Structure de piston calorifugée
EP0294092A2 (fr) * 1987-05-30 1988-12-07 Isuzu Motors Limited Structure calorifugée de moteur à combustion interne calorifique
EP0294092A3 (en) * 1987-05-30 1989-10-25 Isuzu Motors Limited Heat-insulating engine structure
EP0294091A3 (en) * 1987-05-30 1989-10-25 Isuzu Motors Limited Heat insulating piston structure
US5033427A (en) * 1987-05-30 1991-07-23 Isuzu Motors Limited Heat-insulating engine structure

Also Published As

Publication number Publication date
DE3420571C1 (de) 1986-01-09
CA1270707A (fr) 1990-06-26
EP0163241A3 (en) 1986-04-02
KR860000466A (ko) 1986-01-29
KR890000752B1 (ko) 1989-04-03
US4646692A (en) 1987-03-03
JPS618449A (ja) 1986-01-16
EP0163241B1 (fr) 1989-01-04
DE3567245D1 (en) 1989-02-09

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