JPS54155330A - Muffler for two-cycle engine - Google Patents

Muffler for two-cycle engine

Info

Publication number
JPS54155330A
JPS54155330A JP6473578A JP6473578A JPS54155330A JP S54155330 A JPS54155330 A JP S54155330A JP 6473578 A JP6473578 A JP 6473578A JP 6473578 A JP6473578 A JP 6473578A JP S54155330 A JPS54155330 A JP S54155330A
Authority
JP
Japan
Prior art keywords
muffler
chamber
engine
valve
expanded part
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
JP6473578A
Other languages
Japanese (ja)
Inventor
Yasuo Arifu
Ryohei Matsumoto
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.)
Suzuki Motor Corp
Original Assignee
Suzuki Motor Corp
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 Suzuki Motor Corp filed Critical Suzuki Motor Corp
Priority to JP6473578A priority Critical patent/JPS54155330A/en
Publication of JPS54155330A publication Critical patent/JPS54155330A/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
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
    • 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
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
    • 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
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/16—Silencing apparatus characterised by method of silencing by using movable parts
    • F01N1/166—Silencing apparatus characterised by method of silencing by using movable parts for changing gas flow path through the silencer or for adjusting the dimensions of a chamber or a pipe
    • 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
    • F01N2490/00—Structure, disposition or shape of gas-chambers
    • F01N2490/15—Plurality of resonance or dead chambers
    • F01N2490/155—Plurality of resonance or dead chambers being disposed one after the other in flow direction
    • 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

Abstract

PURPOSE:To obtain a high muffling effect in the total revolution range of an engine, providing a chamber near a muffler and installing a valve between the chamber and the muffler so that the valve is opened or closed in connection with the condition of the engine. CONSTITUTION:The chamber 6 is provided near the front of the expansion chamber 5 of the muffler 4 attached to the engine 1 through an exhaust pipe 3. The chamber 6 is coupled to the muffler 4 through a passage 7. The muffler 4 has an expanded part 8 near the chamber 6. The cylindrical valve 11 which has a hole 9 in the bottom 10 is movably fitted in the expanded part 8. A tension spring 12 is engaged between the left end of the expanded part 8 and the bottom 10 of the valve 11. When the rotational frequency of the engine 1 increases, the tension spring 12 is elongated by a force based on the flow of exhaust gas and the passage 7 is gradually closed by the valve 11. Therefore, the high muffling effect is obtained in the total revolution range of the engine 1.
JP6473578A 1978-05-30 1978-05-30 Muffler for two-cycle engine Pending JPS54155330A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6473578A JPS54155330A (en) 1978-05-30 1978-05-30 Muffler for two-cycle engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6473578A JPS54155330A (en) 1978-05-30 1978-05-30 Muffler for two-cycle engine

Publications (1)

Publication Number Publication Date
JPS54155330A true JPS54155330A (en) 1979-12-07

Family

ID=13266692

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6473578A Pending JPS54155330A (en) 1978-05-30 1978-05-30 Muffler for two-cycle engine

Country Status (1)

Country Link
JP (1) JPS54155330A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56141017A (en) * 1980-04-03 1981-11-04 Suzuki Motor Co Ltd Variable device for exhaust gas expansion chamber of two cycle engine
JP2009091917A (en) * 2007-10-04 2009-04-30 Toyota Motor Corp Internal combustion engine control device
JP2009287424A (en) * 2008-05-28 2009-12-10 Autech Japan Inc Variable exhaust device of internal combustion engine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4512645Y1 (en) * 1966-10-31 1970-06-02

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4512645Y1 (en) * 1966-10-31 1970-06-02

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56141017A (en) * 1980-04-03 1981-11-04 Suzuki Motor Co Ltd Variable device for exhaust gas expansion chamber of two cycle engine
JPH0325610B2 (en) * 1980-04-03 1991-04-08 Suzuki Co Ltd
JP2009091917A (en) * 2007-10-04 2009-04-30 Toyota Motor Corp Internal combustion engine control device
JP2009287424A (en) * 2008-05-28 2009-12-10 Autech Japan Inc Variable exhaust device of internal combustion engine

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