Motorcycle exhaust system

Details Motorcycle exhaust system Motorcycle exhaust system

2007-11-06

2007-11-06

Denion, Thomas (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

Common receiver having inlets from plural cylinder

C060S324000

Reexamination Certificate

active

11222718

ABSTRACT:
A motorcycle exhaust system includes a catalytic converter (43) disposed within an exhaust passage (37) for discharging exhaust gas (G) from a multi-cylinder combustion engine (E) and operable to purify the exhaust gas (G). An upstream end of the catalytic converter (43) has different regions (S1and S2) communicated with upstream exhaust passage portions (37aand37a), respectively, and a downstream end of the catalytic converter (43) is communicated with downstream exhaust passage portions (37band37b) in a number equal to or smaller than the number of the upstream exhaust passage portions (37aand37a). Also, the catalytic converter (43) has a partition wall (43c) extending in a direction of flow of the exhaust gas (G) for allowing the exhaust gas (G) from the upstream exhaust passage portions (37aand37a) to flow through the catalytic converter (43) without being mixed together.

REFERENCES:
patent: 4261170 (1981-04-01), Suzuki
patent: 5271477 (1993-12-01), Gekka et al.
patent: 5365735 (1994-11-01), Weber et al.
patent: 5976473 (1999-11-01), Reck et al.
patent: 6609366 (2003-08-01), Kameyama
patent: 6887294 (2005-05-01), Kanematsu
patent: 2002/0083703 (2002-07-01), Werth et al.
patent: 2006/0053782 (2006-03-01), Kobayashi et al.
patent: 2003-307126 (2003-10-01), None

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