Vehicle exhaust apparatus and motorcycle equipped therewith

Details Vehicle exhaust apparatus and motorcycle equipped therewith Vehicle exhaust apparatus and motorcycle equipped therewith

2006-12-14

2008-12-02

Denion, Thomas E (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

Common receiver having inlets from plural cylinder

C060S313000, C060S324000

Reexamination Certificate

active

07458210

ABSTRACT:
In a vehicle exhaust apparatus constituting an exhaust passage to an exhaust muffler from a plurality of exhaust pipes connected to a multi-cylinder engine, an expansion chamber is formed along the exhaust passage and is connected to an exhaust collector portion. The expansion chamber is formed so as to expand outward from the exhaust collector portion in a substantially arc or chevron shape when viewed from a direction substantially orthogonal to an exhaust gasflow. Preferably, the expansion chamber is formed in a spherical shape and plural branched exhaust pipes are formed on the exhaust gas downstream side of the expansion chamber.

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patent: 63-130618 (1988-08-01), None
patent: 6-73319 (1994-10-01), None

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