JPS5598631A - Preparation of exhaust port of automobile engine - Google Patents

Preparation of exhaust port of automobile engine

Info

Publication number
JPS5598631A
JPS5598631A JP16615579A JP16615579A JPS5598631A JP S5598631 A JPS5598631 A JP S5598631A JP 16615579 A JP16615579 A JP 16615579A JP 16615579 A JP16615579 A JP 16615579A JP S5598631 A JPS5598631 A JP S5598631A
Authority
JP
Japan
Prior art keywords
port
liner
core
way
exhaust port
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
JP16615579A
Other languages
Japanese (ja)
Other versions
JPS5831462B2 (en
Inventor
Yoshimasa Hayashi
Kunio Sensui
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP54166155A priority Critical patent/JPS5831462B2/en
Publication of JPS5598631A publication Critical patent/JPS5598631A/en
Publication of JPS5831462B2 publication Critical patent/JPS5831462B2/en
Expired legal-status Critical Current

Links

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
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4235—Shape or arrangement of intake or exhaust channels in cylinder heads of intake channels
    • F02F1/4242—Shape or arrangement of intake or exhaust channels in cylinder heads of intake channels with a partition wall inside the channel
    • 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
    • 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
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4264—Shape or arrangement of intake or exhaust channels in cylinder heads of exhaust channels
    • F02F1/4271—Shape or arrangement of intake or exhaust channels in cylinder heads of exhaust channels with an exhaust liner
    • 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
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4264—Shape or arrangement of intake or exhaust channels in cylinder heads of exhaust channels
    • 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
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4264—Shape or arrangement of intake or exhaust channels in cylinder heads of exhaust channels
    • F02F2001/4278—Exhaust collectors
    • 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
    • F02F2200/00—Manufacturing
    • F02F2200/06—Casting

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)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

PURPOSE:To reduce time required for burning of sand core, by dividing a port liner along an axial plane of the same, forming a port core by way of welding or other method after pinching a preburnt sand core, and casting them into a unitary form. CONSTITUTION:Port liner 4 consists of linear portions 4a, 4b obtained by dividing the port liner 4 symmetrically in a place containing the axial center line of the liner 4. After port core 7 prefabricated by way of burning is placed between these liner portions 4a and 4b, their flange portions 8a, 8b are coupled together by way of welding or caulking. This port liner 4 is cast in exhaust port 3 which is connected to combustion chamber 2 formed in cylinder head 1, and heat-insulating space 6 is formed between port liner 4 and port wall 5. Since port core 7 can be pre-burnt as described above, time required for manufacturing the core can be shortened extremely, and at the same time, manufacturing of exhaust port is facilitated greatly.
JP54166155A 1979-12-20 1979-12-20 Exhaust port manufacturing method for automobile engine Expired JPS5831462B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54166155A JPS5831462B2 (en) 1979-12-20 1979-12-20 Exhaust port manufacturing method for automobile engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54166155A JPS5831462B2 (en) 1979-12-20 1979-12-20 Exhaust port manufacturing method for automobile engine

Publications (2)

Publication Number Publication Date
JPS5598631A true JPS5598631A (en) 1980-07-26
JPS5831462B2 JPS5831462B2 (en) 1983-07-06

Family

ID=15826077

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54166155A Expired JPS5831462B2 (en) 1979-12-20 1979-12-20 Exhaust port manufacturing method for automobile engine

Country Status (1)

Country Link
JP (1) JPS5831462B2 (en)

Also Published As

Publication number Publication date
JPS5831462B2 (en) 1983-07-06

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