| 摘要 |
PURPOSE: A muffler integrally assembled with an exhaust gas purifier of a vehicle is provided to cut down expenses by integrally assembling the exhaust gas purifier with the muffler with simple structure, and to improve the output by increasing exhaust efficiency. CONSTITUTION: A purifier of a vehicle is composed of a housing(30) having an end cone(31) inputting and outputting exhaust gas, and a mat(35) inserted between catalysts(32,33,34) and the housing to reduce noise and protect the catalysts. The catalyst has the pre-catalyst forming a ceramic carrier with large pores near an exhaust gas inlet(36), the main catalyst spaced from the pre-catalyst with compact pores and placed in the middle of the housing, and the post-catalyst spaced from the main catalyst with large pores near an exhaust gas outlet(37). The structure is simplified, and expenses are reduced by integrally forming the muffler and the exhaust gas purifier in the vehicle.
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