| US 7,540,347 B2 | ||
| Exhaust system for motorcycle | ||
| Masayuki Taniguchi, Saitama (Japan); Noriyoshi Tsutsui, Saitama (Japan); Nobutaka Wakita, Saitama (Japan); Hidetoshi Takamatsu, Saitama (Japan); Yuji Kashiwabara, Saitama (Japan); Shunichi Nakajima, Saitama (Japan); Tsuyoshi Arima, Saitama (Japan); and Hirotaka Haze, Saitama (Japan) | ||
| Assigned to Honda Motor Co., Ltd., Tokyo (Japan) | ||
| Filed on Oct. 02, 2006, as Appl. No. 11/540,714. | ||
| Claims priority of application No. 2005-285937 (JP), filed on Sep. 30, 2005; and application No. 2005-287128 (JP), filed on Sep. 30, 2005. | ||
| Prior Publication US 2007/0107419 A1, May 17, 2007 | ||
| Int. Cl. B62D 61/02 (2006.01) | ||
| U.S. Cl. 180—219 [180/309; 181/275] | 20 Claims |
| 1. An exhaust system for a motorcycle comprising:
respective exhaust pipes extending from respective cylinders of an engine; and
a muffler having a plurality of expansion chambers downstream of an assembly of the respective exhaust pipes;
wherein the muffler includes a first expansion chamber and a second expansion chamber that are connected in series with the
first expansion chamber by a connecting pipe the respective exhaust pipes and the assembly are disposed at one of a left or
right side of an oil pan of the engine, with the first expansion chamber being disposed at another of the left and right side
of the oil pan, and
the second expansion chamber is disposed to a rear of the engine.
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