| US 7,484,361 B2 | ||
| Exhaust gas purifying apparatus of motorcycle | ||
| Takashi Yamaguchi, Saitama (Japan); Akinori Hirano, Saitama (Japan); and Takanori Sato, Saitama (Japan) | ||
| Assigned to Honda Motor Co., Ltd., Tokyo (Japan) | ||
| Filed on Jun. 23, 2005, as Appl. No. 11/159,309. | ||
| Claims priority of application No. 2004-186418 (JP), filed on Jun. 24, 2004. | ||
| Prior Publication US 2005/0284141 A1, Dec. 29, 2005 | ||
| Int. Cl. F02B 27/02 (2006.01) | ||
| U.S. Cl. 60—312 [60/299] | 24 Claims |
| 1. An exhaust gas purifying apparatus of a motorcycle comprising:
an engine in which a cylinder block extends upwardly on a crankcase;
an exhaust port provided on a front portion of the engine;
an exhaust pipe extending forward of the engine from the exhaust port, then extending downward once, and thereafter, extending
toward a rear of a vehicle body; and
a catalyst placed in the exhaust pipe,
wherein the exhaust pipe passes along a side of the cylinder block,
wherein the exhaust pipe including a pair of exhaust pipes extending forward of the engine from the exhaust ports, then extending
downward, and thereafter, extending upwardly and rearwardly toward the rear of the vehicle body; and
wherein the catalyst is placed in the upwardly and rearwardly extending portion of each of the exhaust pipes in positions
that overlap the side of the cylinder block,
and when viewed in a plan view, the crankcase can be seen to extend further in a lateral direction of the motorcycle than
an entirety of the portion of the exhaust pipe that passes along the side of the cylinder block.
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