Exhaust system for motorcycle

Details Exhaust system for motorcycle Exhaust system for motorcycle

2006-04-24

2010-10-26

Denion, Thomas E (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

Divider, collector, valve means, or boundary layer device...

C060S313000, C060S323000, C180S219000

Reexamination Certificate

active

07818964

ABSTRACT:
An exhaust system for a motorcycle having an engine mounted on a front half of a body frame of the motorcycle includes a plurality of first exhaust pipes extending from exhaust ports of the engine, a collecting section at which the first exhaust pipes are collected, a second exhaust pipe including a substantially straight portion connected to a downstream side of the collecting section and disposed under a crankcase of the engine, an expansion chamber connected to a downstream side of the second exhaust pipe and located under a rear wheel suspension arranged behind the engine, an exhaust outlet disposed on a most downstream portion of the expansion chamber, and an exhaust throttle valve and an exhaust gas sensor disposed on the straight portion of the second exhaust pipe.

REFERENCES:
patent: 5271480 (1993-12-01), Takegami
patent: 6644022 (2003-11-01), Hirota et al.
patent: 6761239 (2004-07-01), Kawamoto
patent: 2002/0153187 (2002-10-01), Tsukui et al.
patent: 2004026007 (2004-01-01), None

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