JPS5672216A - Turbulence chamber insert for diesel engine - Google Patents

Turbulence chamber insert for diesel engine

Info

Publication number
JPS5672216A
JPS5672216A JP14925679A JP14925679A JPS5672216A JP S5672216 A JPS5672216 A JP S5672216A JP 14925679 A JP14925679 A JP 14925679A JP 14925679 A JP14925679 A JP 14925679A JP S5672216 A JPS5672216 A JP S5672216A
Authority
JP
Japan
Prior art keywords
ring
main body
chamber insert
fitted
turbulence chamber
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.)
Pending
Application number
JP14925679A
Other languages
Japanese (ja)
Inventor
Motoharu Yoshida
Hideo Seko
Kenki Ishizawa
Hideki Haishi
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.)
Shinagawa Refractories Co Ltd
Aisin Corp
Original Assignee
Shinagawa Refractories Co Ltd
Aisin Seiki Co Ltd
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 Shinagawa Refractories Co Ltd, Aisin Seiki Co Ltd filed Critical Shinagawa Refractories Co Ltd
Priority to JP14925679A priority Critical patent/JPS5672216A/en
Publication of JPS5672216A publication Critical patent/JPS5672216A/en
Pending 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
    • F02B19/00—Engines characterised by precombustion chambers
    • F02B19/16—Chamber shapes or constructions not specific to sub-groups F02B19/02 - F02B19/10
    • F02B19/165—The shape or construction of the pre-combustion chambers is specially adapted to be formed, at least in part, of ceramic material
    • 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)
  • Ceramic Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Abstract

PURPOSE:To prevent the turbulence chamber insert from being cracked by a method wherein a metallic ring is shrink-fitted on the outer periphery of the turbulence chamber insert body made of ceramics on condition that a necessary compressive stress remains and pressed into a cylinder head. CONSTITUTION:The turbulence chamber insert 20 is composed of a main body 21 made of ceramics with silicon nitride as the subject and the metallic ring 22 fitted on the outer periphery of the main body 21. The ring 22 is shrink-fitted on the outer periphery of the bottom wall 21a of the body 21 on condition that a necessary compressive stress remains in the body 21 even when said engine is operated. The shrink-fit is conducted at 400-800 deg.C of shrinking temperature and 100-250mu of shrinking allowance. For example, if the outer diameter of the main body 21 is 34mm. at normal temperature, the ring 22 for its inner diameter is made (34mm.- 150mu) at normal temperature and the ring 22 alone is warmed at 500 deg.C to be fitted. In such a manner, the necessary tensile stress remains in the ring 22 and acts as compressive force upon the main body 21 even in the operation of the engine. Accordingly, it is suppressed that the main body 21 at its bottom wall 21a is cracked.
JP14925679A 1979-11-16 1979-11-16 Turbulence chamber insert for diesel engine Pending JPS5672216A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14925679A JPS5672216A (en) 1979-11-16 1979-11-16 Turbulence chamber insert for diesel engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14925679A JPS5672216A (en) 1979-11-16 1979-11-16 Turbulence chamber insert for diesel engine

Publications (1)

Publication Number Publication Date
JPS5672216A true JPS5672216A (en) 1981-06-16

Family

ID=15471278

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14925679A Pending JPS5672216A (en) 1979-11-16 1979-11-16 Turbulence chamber insert for diesel engine

Country Status (1)

Country Link
JP (1) JPS5672216A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0097320A2 (en) * 1982-06-18 1984-01-04 Feldmühle Aktiengesellschaft Prechamber or swirl chamber for a combustion engine
EP0224345B1 (en) * 1985-11-05 1990-10-10 Ngk Insulators, Ltd. Valve seat insert and cylinder head with the valve seat insert

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0097320A2 (en) * 1982-06-18 1984-01-04 Feldmühle Aktiengesellschaft Prechamber or swirl chamber for a combustion engine
EP0224345B1 (en) * 1985-11-05 1990-10-10 Ngk Insulators, Ltd. Valve seat insert and cylinder head with the valve seat insert

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