JPS56118518A - Four-cycle internal combustion engine - Google Patents

Four-cycle internal combustion engine

Info

Publication number
JPS56118518A
JPS56118518A JP2107380A JP2107380A JPS56118518A JP S56118518 A JPS56118518 A JP S56118518A JP 2107380 A JP2107380 A JP 2107380A JP 2107380 A JP2107380 A JP 2107380A JP S56118518 A JPS56118518 A JP S56118518A
Authority
JP
Japan
Prior art keywords
resonant
volume section
exhaust gas
cylinder
θevo
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
JP2107380A
Other languages
Japanese (ja)
Other versions
JPS632010B2 (en
Inventor
Yozo Tosa
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP2107380A priority Critical patent/JPS56118518A/en
Publication of JPS56118518A publication Critical patent/JPS56118518A/en
Publication of JPS632010B2 publication Critical patent/JPS632010B2/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
    • F02B41/00—Engines characterised by special means for improving conversion of heat or pressure energy into mechanical power

Landscapes

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

Abstract

PURPOSE: To enable the recovery of the kinetic energy of exhaust gas, which is abandoned to the outside, to reduce fuel consumption, by providing each cylinder with a resonant volume section into which the exhaust gas is introduced and with a resonant pipe which communicates wth the atmosphere, a muffler or the like.
CONSTITUTION: In embodying a three-cylinder engine comprising three cylinders 1aW1c with equal ignition intervals of 240° in crankshaft angle, a resonant volume section 4 is provided so that exhaust gas is conducted thereto from the exhaust valves 3aW3c of the cylinders 1aW1c. The internal capacity VR of the volume section 4 is set as 0.4≤VR/VH≤3.5 where VH shows the stroke volume of one cylinder. Supposing that the opening time of the exhaust valves 3aW3c is shown by the crankshaft angle θEVO before the bottom dead center, the opening time is set as 145-5.6(VR/VH)≥θEVO≥90-5.6(VR/VH). The resonant volume section 4 is connected to a silencing volume section 6 through a resonant pipe 5 of predetermined length.
COPYRIGHT: (C)1981,JPO&Japio
JP2107380A 1980-02-23 1980-02-23 Four-cycle internal combustion engine Granted JPS56118518A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2107380A JPS56118518A (en) 1980-02-23 1980-02-23 Four-cycle internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2107380A JPS56118518A (en) 1980-02-23 1980-02-23 Four-cycle internal combustion engine

Publications (2)

Publication Number Publication Date
JPS56118518A true JPS56118518A (en) 1981-09-17
JPS632010B2 JPS632010B2 (en) 1988-01-16

Family

ID=12044706

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2107380A Granted JPS56118518A (en) 1980-02-23 1980-02-23 Four-cycle internal combustion engine

Country Status (1)

Country Link
JP (1) JPS56118518A (en)

Also Published As

Publication number Publication date
JPS632010B2 (en) 1988-01-16

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