Exhaust system for motorcycle

Power plants – Internal combustion engine with treatment or handling of... – Divider – collector – valve means – or boundary layer device...

Reexamination Certificate

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Details

C060S292000, C060S313000, C060S323000

Reexamination Certificate

active

08006488

ABSTRACT:
An exhaust system for a motorcycle provided with a multicylinder engine, includes an exhaust aggregating member for unifying a pair of exhaust passages, through which an exhaust gas exhausted from the engine is transported to a muffler, so as to form a single exhaust passage therein. The single exhaust passage is connected to the muffler without being merged with another exhaust passage. The exhaust system also includes an exhaust control valve incorporated into the exhaust aggregating member and capable of changing sectional area of the single exhaust passage formed in the exhaust aggregating member.

REFERENCES:
patent: 1990837 (1935-02-01), Morgenstern
patent: 2239262 (1941-04-01), Violet
patent: 4785626 (1988-11-01), Shiraishi
patent: 4795420 (1989-01-01), Sakurai et al.
patent: 4909033 (1990-03-01), Ueda
patent: 4999999 (1991-03-01), Takahashi et al.
patent: 5144799 (1992-09-01), Barth
patent: 6761239 (2004-07-01), Kawamoto
patent: A 63-16127 (1988-01-01), None
patent: A-63-208611 (1988-08-01), None
patent: A-63-255515 (1988-10-01), None
patent: A-02-162185 (1990-06-01), None
patent: A 2002-138828 (2002-05-01), None
patent: A-2002-138828 (2002-05-01), None

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