Patent ID: 6524150
Filing Date: 2003-02-25
Classification: B63B,F01N,F01P,F02B,F02D,Y02T

Abstract:
A watercraft comprising an internal combustion engine having at least one exhaust port and an output shaft, a propulsion device driven by the engine output shaft, an exhaust system comprising an exhaust passage that extends between the engine exhaust port and a discharge port, a catalytic device being disposed within said exhaust system, a cooling jacket extending along a portion of the exhaust system in the vicinity of the catalytic device, and an exhaust system temperature sensor being located between said catalytic device and a point at which cooling water is introduced from said cooling jacket into exhaust gases flowing within said exhaust system, said exhaust system temperature sensor being arranged such that said cooling jacket extends around at least a portion of said exhaust system temperature sensor and said exhaust system temperature sensor being disposed along an axial centerline of said catalytic device.