JPS5688933A - Piston head part structure - Google Patents

Piston head part structure

Info

Publication number
JPS5688933A
JPS5688933A JP16407679A JP16407679A JPS5688933A JP S5688933 A JPS5688933 A JP S5688933A JP 16407679 A JP16407679 A JP 16407679A JP 16407679 A JP16407679 A JP 16407679A JP S5688933 A JPS5688933 A JP S5688933A
Authority
JP
Japan
Prior art keywords
piston
main body
piston head
ring
ceramics
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
JP16407679A
Other languages
Japanese (ja)
Other versions
JPS633144B2 (en
Inventor
Masahiko Sugiyama
Kenichi Nishio
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
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 Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP16407679A priority Critical patent/JPS5688933A/en
Publication of JPS5688933A publication Critical patent/JPS5688933A/en
Priority to US06/460,022 priority patent/US4506593A/en
Publication of JPS633144B2 publication Critical patent/JPS633144B2/ja
Granted legal-status Critical Current

Links

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
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0696—W-piston bowl, i.e. the combustion space having a central projection pointing towards the cylinder head and the surrounding wall being inclined towards the cylinder wall
    • 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
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0603—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston at least part of the interior volume or the wall of the combustion space being made of material different from the surrounding piston part, e.g. combustion space formed within a ceramic part fixed to a metal piston head
    • F02B2023/0612—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston at least part of the interior volume or the wall of the combustion space being made of material different from the surrounding piston part, e.g. combustion space formed within a ceramic part fixed to a metal piston head the material having a high temperature and pressure resistance, e.g. ceramic
    • 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
    • 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
    • F05C2201/04—Heavy metals
    • F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
    • F05C2201/0448—Steel
    • 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
    • F05C2203/0804—Non-oxide ceramics
    • F05C2203/083—Nitrides
    • F05C2203/0843—Nitrides of silicon
    • 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
    • F05C2251/00—Material properties
    • F05C2251/04—Thermal properties
    • F05C2251/042—Expansivity
    • 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
    • F05C2253/00—Other material characteristics; Treatment of material
    • F05C2253/16—Fibres
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

PURPOSE:To prevent ceramics of a piston head made of ceramics by providing a metallic ring between the ceramics and the main body of the piston. CONSTITUTION:A piston main body 2 is made of aluminium alloy and provided with a skirt part 3. A piston head 7 is made of ceramic materials of silicon nitride and shaped to keep a combustion hollow 8 in the center of its upper face and a projection 9 on the lower side with an annular groove 10 around. A ring 11 made of number is fitted to the annular groove 10 of the piston head 7 by its inner projected part 12, and fixed between the piston main body 2 and the piston head 7 with its periphery 13 fitted to a concave inner wall 14 of the piston main body 2. Consequently, since the strong fastening force given to the ring 11 in a cooled state after a shrinkage fit is received by the rigidity of the ring 11 and not increased greatly, ceramic materials of the head 7 are prevented from cracking.
JP16407679A 1979-12-19 1979-12-19 Piston head part structure Granted JPS5688933A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP16407679A JPS5688933A (en) 1979-12-19 1979-12-19 Piston head part structure
US06/460,022 US4506593A (en) 1979-12-19 1983-01-21 Piston head structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16407679A JPS5688933A (en) 1979-12-19 1979-12-19 Piston head part structure

Publications (2)

Publication Number Publication Date
JPS5688933A true JPS5688933A (en) 1981-07-18
JPS633144B2 JPS633144B2 (en) 1988-01-22

Family

ID=15786315

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16407679A Granted JPS5688933A (en) 1979-12-19 1979-12-19 Piston head part structure

Country Status (1)

Country Link
JP (1) JPS5688933A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5883431U (en) * 1981-11-30 1983-06-06 トヨタ自動車株式会社 Ceramic head cast piston
JPS5971939U (en) * 1982-09-10 1984-05-16 フオルクスウア−ゲンウエルク・アクチエンゲゼルシヤフト Piston for internal combustion engine
JPS59117861U (en) * 1983-01-29 1984-08-09 京セラ株式会社 Piston for internal combustion engine
JPS6045759A (en) * 1983-08-23 1985-03-12 Ngk Spark Plug Co Ltd Ceramic built-in type piston
JPS60175750A (en) * 1984-02-23 1985-09-09 Ngk Insulators Ltd Ceramic chilled piston
DE3506069A1 (en) * 1984-02-28 1985-09-12 NGK Insulators Ltd., Nagoya, Aichi MACHINE PART FOR AN INTERNAL COMBUSTION ENGINE AND METHOD FOR THE PRODUCTION THEREOF
JPS60141448U (en) * 1984-02-29 1985-09-19 京セラ株式会社 Structure of a piston for an internal combustion engine with a ceramic head
US4648373A (en) * 1984-07-18 1987-03-10 Toyota Jidosha Kabushiki Kaisha Intake manifold for internal combustion engine having exhaust gas recirculation system
US4672939A (en) * 1984-07-18 1987-06-16 Toyota Jidosha Kabushiki Kaisha Intake manifold for internal combustion engine having exhaust gas recirculation system

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5883431U (en) * 1981-11-30 1983-06-06 トヨタ自動車株式会社 Ceramic head cast piston
JPS5971939U (en) * 1982-09-10 1984-05-16 フオルクスウア−ゲンウエルク・アクチエンゲゼルシヤフト Piston for internal combustion engine
JPH0141878Y2 (en) * 1982-09-10 1989-12-08
JPH0118821Y2 (en) * 1983-01-29 1989-06-01
JPS59117861U (en) * 1983-01-29 1984-08-09 京セラ株式会社 Piston for internal combustion engine
JPS6045759A (en) * 1983-08-23 1985-03-12 Ngk Spark Plug Co Ltd Ceramic built-in type piston
JPH0133656B2 (en) * 1983-08-23 1989-07-14 Ngk Spark Plug Co
JPS60175750A (en) * 1984-02-23 1985-09-09 Ngk Insulators Ltd Ceramic chilled piston
EP0154462A3 (en) * 1984-02-23 1986-12-30 Ngk Insulators, Ltd. Ceramic insert cast piston
EP0154462A2 (en) * 1984-02-23 1985-09-11 Ngk Insulators, Ltd. Ceramic insert cast piston
JPH0467580B2 (en) * 1984-02-23 1992-10-28 Ngk Insulators Ltd
DE3506069A1 (en) * 1984-02-28 1985-09-12 NGK Insulators Ltd., Nagoya, Aichi MACHINE PART FOR AN INTERNAL COMBUSTION ENGINE AND METHOD FOR THE PRODUCTION THEREOF
JPS60141448U (en) * 1984-02-29 1985-09-19 京セラ株式会社 Structure of a piston for an internal combustion engine with a ceramic head
JPH0141879Y2 (en) * 1984-02-29 1989-12-08
US4648373A (en) * 1984-07-18 1987-03-10 Toyota Jidosha Kabushiki Kaisha Intake manifold for internal combustion engine having exhaust gas recirculation system
US4672939A (en) * 1984-07-18 1987-06-16 Toyota Jidosha Kabushiki Kaisha Intake manifold for internal combustion engine having exhaust gas recirculation system

Also Published As

Publication number Publication date
JPS633144B2 (en) 1988-01-22

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