Importance

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Abstract

A catalytic apparatus is used for a motorcycle with an engine. The catalytic apparatus includes an engine exhaust manifold, a silencer, a front exhaust pipe positioned between the engine exhaust manifold and the silencer, a front supply pipe connected to the engine exhaust manifold and configured for supplying secondary air, and at least one catalytic converter positioned in the silencer. A catalyst is coated on an inner wall of the front exhaust pipe. The catalyst receives the secondary air supplied by the front supply pipe to clean engine exhaust gases. Particularly, when the motorcycle is started in a cold state, the present catalytic apparatus can enhance the temperature of the engine exhaust gases, and the at least one catalytic converter can be accelerated to reach its operating temperature.

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First Claim