| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an exhaust gas purifier of a motorcycle engine. <P>SOLUTION: The exhaust gas purifier includes a plurality of catalytic converters, and a front supply pipe and a back supply pipe for supplying secondary air, installed between an engine exhaust pipe and a muffler. The front supply pipe connects with the exhaust side of the engine or an exhaust pipe at the front of the muffler, and the back supply pipe connects with connecting piping inside the muffler. Further, at least two catalytic converters are inside the muffler, and are installed between the front supply pipe and the back supply pipe. The catalytic converters are configured of one front catalytic converter for oxidation and at least one middle catalytic converter for oxygen reduction. At least one back catalytic converter is arranged inside the muffler and in the rear of the back supply pipe for supplying secondary air. Thereby, this exhaust gas purifier fulfills the role for realizing double effects of highly efficient oxidation of hazardous exhaust gas by a catalytic process and oxygen reduction. <P>COPYRIGHT: (C)2008,JPO&INPIT |
