| US 7,549,510 B2 | ||
| Vehicle exhaust system | ||
| Taisuke Sakurai, Shizuoka-ken (Japan); and Itsurou Hagiwara, Shizuoka-ken (Japan) | ||
| Assigned to Yamaha Hatsudoki Kabushiki Kaisha, Shizuoka-ken (Japan) | ||
| Filed on Mar. 28, 2007, as Appl. No. 11/692,814. | ||
| Claims priority of application No. 2006-092334 (JP), filed on Mar. 29, 2006; and application No. 2007-031100 (JP), filed on Feb. 09, 2007. | ||
| Prior Publication US 2007/0227808 A1, Oct. 04, 2007 | ||
| Int. Cl. F01N 1/04 (2006.01); F01N 1/24 (2006.01); F01N 7/08 (2006.01); F01N 1/02 (2006.01) | ||
| U.S. Cl. 181—252 [181/249; 181/255; 181/256; 181/227] | 19 Claims |
| 1. An exhaust system, comprising:
an exhaust pipe connectable to an engine of a vehicle;
a silencer coupled to the exhaust pipe, wherein the silencer comprises an outer housing and an inner core accommodated within
the outer housing, wherein the exhaust pipe is aligned with the inner core at a junction therebetween;
a tail pipe arrangement coupled to the silencer, at least a portion of the tail pipe arrangement extending within the silencer,
wherein the tail pipe arrangement and the inner core overlap one another along a longitudinal axis of the silencer to define
an overlap portion, wherein the radial dimension of an intermediate section of the inner core gradually changes within the
overlap portion; and
an air space between the tail pipe and the inner core.
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