JPS5623540A - Engine exhaust port - Google Patents

Engine exhaust port

Info

Publication number
JPS5623540A
JPS5623540A JP9954379A JP9954379A JPS5623540A JP S5623540 A JPS5623540 A JP S5623540A JP 9954379 A JP9954379 A JP 9954379A JP 9954379 A JP9954379 A JP 9954379A JP S5623540 A JPS5623540 A JP S5623540A
Authority
JP
Japan
Prior art keywords
exhaust port
exhaust
wall
engine exhaust
resin
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
JP9954379A
Other languages
Japanese (ja)
Inventor
Masaru Furuhashi
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.)
Yamaha Motor Co Ltd
Original Assignee
Yamaha 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 Yamaha Motor Co Ltd filed Critical Yamaha Motor Co Ltd
Priority to JP9954379A priority Critical patent/JPS5623540A/en
Publication of JPS5623540A publication Critical patent/JPS5623540A/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
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/18—Other cylinders
    • F02F1/22—Other cylinders characterised by having ports in cylinder wall for scavenging or charging
    • 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
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

PURPOSE:To prevent drops in exhaust temperature and reduce build-up of carbon deposits on the inner circumferential wall of an exhaust port by forming a heat resistant layer of resin on the wall. CONSTITUTION:A heat resistant layer 6 of Teflon or other resin is formed on the inner cirfumferential wall of an exhaust ports 5. By this, the temperature drop of exhaust into the exhaust port 5 from a combustion chamber 2 is reduced, thereby resulting in a reduced build-up of carbon deposits.
JP9954379A 1979-08-04 1979-08-04 Engine exhaust port Pending JPS5623540A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9954379A JPS5623540A (en) 1979-08-04 1979-08-04 Engine exhaust port

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9954379A JPS5623540A (en) 1979-08-04 1979-08-04 Engine exhaust port

Publications (1)

Publication Number Publication Date
JPS5623540A true JPS5623540A (en) 1981-03-05

Family

ID=14250092

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9954379A Pending JPS5623540A (en) 1979-08-04 1979-08-04 Engine exhaust port

Country Status (1)

Country Link
JP (1) JPS5623540A (en)

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