JPS5768518A - Exhaust device for 4 cycle internal combustion engine - Google Patents

Exhaust device for 4 cycle internal combustion engine

Info

Publication number
JPS5768518A
JPS5768518A JP14373180A JP14373180A JPS5768518A JP S5768518 A JPS5768518 A JP S5768518A JP 14373180 A JP14373180 A JP 14373180A JP 14373180 A JP14373180 A JP 14373180A JP S5768518 A JPS5768518 A JP S5768518A
Authority
JP
Japan
Prior art keywords
exhaust
vent hole
valve
gas
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.)
Granted
Application number
JP14373180A
Other languages
Japanese (ja)
Other versions
JPS6225850B2 (en
Inventor
Hiroshi Sakaoka
Toshio Yabumoto
Teruyuki Nakano
Koji Nakajima
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.)
Honda Motor Co Ltd
Original Assignee
Honda 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 Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP14373180A priority Critical patent/JPS5768518A/en
Publication of JPS5768518A publication Critical patent/JPS5768518A/en
Publication of JPS6225850B2 publication Critical patent/JPS6225850B2/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
    • 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
    • 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
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Characterised By The Charging Evacuation (AREA)

Abstract

PURPOSE: To improve the exhaust efficiency of the exhaust device for an internal combustion engine by providing a vent hole opened at one end in the vicinity of an exhaust valve in a cylinder head and connecting the other end of the vent hole to the chamber of the predetermined volume, thereby alleviating the impact pressure produced by the exhaust gas.
CONSTITUTION: A vent hole 8 of the predetermined length and diameter opened at one end with an exhaust passage 4 is formed in the vicinity of an exhaust valve 4a at the exhaust passage 4 side of a cylinder head 2, and the other end of the vent hole 8 is communicated with a chamber of the predetermined volume mounted together with a head cover 10 on the top of a cylinder head 2. Accordingly, when an engine starts an exhaust stroke so that the valve 4a is opened, high pressure burnt gas ejects in a supersonic state in to the passage 4, thereby producing an exhaust gas pressure vibration, which is suppressed by introducing a part of the burnt gas through the vent hole into the chamber 9. In this manner, the pressure state at the rear side of the valve 4a is alleviated, thereby smoothening the exhaust of the gas.
COPYRIGHT: (C)1982,JPO&Japio
JP14373180A 1980-10-16 1980-10-16 Exhaust device for 4 cycle internal combustion engine Granted JPS5768518A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14373180A JPS5768518A (en) 1980-10-16 1980-10-16 Exhaust device for 4 cycle internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14373180A JPS5768518A (en) 1980-10-16 1980-10-16 Exhaust device for 4 cycle internal combustion engine

Publications (2)

Publication Number Publication Date
JPS5768518A true JPS5768518A (en) 1982-04-26
JPS6225850B2 JPS6225850B2 (en) 1987-06-05

Family

ID=15345692

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14373180A Granted JPS5768518A (en) 1980-10-16 1980-10-16 Exhaust device for 4 cycle internal combustion engine

Country Status (1)

Country Link
JP (1) JPS5768518A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0152153A2 (en) * 1984-02-15 1985-08-21 ALFA ROMEO AUTO S.p.A. Resonance device for the exhaust system of an internal combustion engine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS528933A (en) * 1975-07-08 1977-01-24 Zachry Co H B Method of coating with particulate coating material and method of spraying said coating material * coating apparatus and spraying apparatus therefor and sealing tape for said particulate coating mater

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS528933A (en) * 1975-07-08 1977-01-24 Zachry Co H B Method of coating with particulate coating material and method of spraying said coating material * coating apparatus and spraying apparatus therefor and sealing tape for said particulate coating mater

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0152153A2 (en) * 1984-02-15 1985-08-21 ALFA ROMEO AUTO S.p.A. Resonance device for the exhaust system of an internal combustion engine
EP0152153A3 (en) * 1984-02-15 1985-11-13 ALFA ROMEO AUTO S.p.A. Resonance device for the exhaust system of an internal combustion engine

Also Published As

Publication number Publication date
JPS6225850B2 (en) 1987-06-05

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