JPS56115811A - Catalytic exhaust system of multicylinder internal combustion engine - Google Patents

Catalytic exhaust system of multicylinder internal combustion engine

Info

Publication number
JPS56115811A
JPS56115811A JP1870180A JP1870180A JPS56115811A JP S56115811 A JPS56115811 A JP S56115811A JP 1870180 A JP1870180 A JP 1870180A JP 1870180 A JP1870180 A JP 1870180A JP S56115811 A JPS56115811 A JP S56115811A
Authority
JP
Japan
Prior art keywords
catalyst
chamber
cylinder
combustion engine
internal combustion
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
JP1870180A
Other languages
Japanese (ja)
Inventor
Yoshiaki Tomita
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 JP1870180A priority Critical patent/JPS56115811A/en
Publication of JPS56115811A publication Critical patent/JPS56115811A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2882—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices
    • F01N3/2885—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices with exhaust silencers in a single housing

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

PURPOSE:To improve the cleanup efficiency and miniaturize a catalyst by a system wherein a muffler equipped with a catalyst is connected to an exhaust pipe of each cylinder and the exhaust pipes are connected with a voluminous connecting chamber at the upper stream side of the catalyst. CONSTITUTION:Mufflers 19 provided with catalyst 29 at the upper stream side of silencing chambers 21, 22 are connected with exhaust pipes 12, 13 led from each cylinder. The exhaust pipes 12, 13 are connected with each other through a voluminous connecting chamber 11 at the upper stream side of catalyst 29. The major part of the exhaust gas coming out alternately from each cylinder is sucked into the chamber 11 at the time when it flows into the connecting chamber 11 and is stored firstly by expanding within said chamber. Consequently the pulsation of exhaust gas is controlled and the exhaust gas volume which contacts with each catalyst is reduced and as a result the cleanup efficiency can be improved and at the same time the catalyst can be miniaturized.
JP1870180A 1980-02-18 1980-02-18 Catalytic exhaust system of multicylinder internal combustion engine Pending JPS56115811A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1870180A JPS56115811A (en) 1980-02-18 1980-02-18 Catalytic exhaust system of multicylinder internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1870180A JPS56115811A (en) 1980-02-18 1980-02-18 Catalytic exhaust system of multicylinder internal combustion engine

Publications (1)

Publication Number Publication Date
JPS56115811A true JPS56115811A (en) 1981-09-11

Family

ID=11978931

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1870180A Pending JPS56115811A (en) 1980-02-18 1980-02-18 Catalytic exhaust system of multicylinder internal combustion engine

Country Status (1)

Country Link
JP (1) JPS56115811A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6045712A (en) * 1983-08-20 1985-03-12 Honda Motor Co Ltd Covering and protection device of exhaust purifier in exhaust system of internal-combustion engine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5031312B2 (en) * 1971-09-25 1975-10-09
JPS5464217A (en) * 1977-10-31 1979-05-23 Suzuki Motor Co Ltd Exhaust gas cleaner for motorcycle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5031312B2 (en) * 1971-09-25 1975-10-09
JPS5464217A (en) * 1977-10-31 1979-05-23 Suzuki Motor Co Ltd Exhaust gas cleaner for motorcycle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6045712A (en) * 1983-08-20 1985-03-12 Honda Motor Co Ltd Covering and protection device of exhaust purifier in exhaust system of internal-combustion engine
JPH0440532B2 (en) * 1983-08-20 1992-07-03 Honda Motor Co Ltd

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