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    • 3. 发明专利
    • MUFFLER WITH CONICAL PARTITION WALL
    • JPH10238333A
    • 1998-09-08
    • JP8320997
    • 1997-02-25
    • NAKAZAWA SATOSHI
    • NAKAZAWA SATOSHI
    • F01N1/08
    • PROBLEM TO BE SOLVED: To reduce lowering of an engine output through improvement of a muffling effect and reduction of the occurrence of exhaust resistance by mounting a conical partition wall. SOLUTION: A conical partition wall is attached at the central part of a cylindrical muffler body and a pipe is arranged at an entrance in combination with connection. A sectional area through which exhaust gas in a muffler flows is extended through the inside from the outside of the conical partition wall and is gradually decreased toward an outlet. This constitution uses an object shaped in a manner that a trumpet-form cylinder, such as a megaphone and brass winds, is brought into an inverted state, performs reasonable muffling, further improves a muffling effect than a conventional type, where a difference in a sectional area is extremely high, only by mounting the conical partition wall, reduces the occurrence of exhaust resistance, and suppresses lowering of an engine output. Further, structure is also simplified and save of space is expected.