EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINE

摘要

Disclosed is an exhaust apparatus for internal combustion engines which can reduce exhaust noises, its weight and production cost with no need to provide a sub-muffler. The exhaust apparatus is provided with an inner pipe 41 having the upstream open end 41a and the downstream open end 41b is disposed in the tail pipe 40, and the upstream open end 41 a of the inner pipe 41 is protruded outwardly from the inside of the tail pipe 40 to be extended into the resonance chamber 38, and thus the upstream open end 41a is closed by the resonance chamber 38 defined by the outer shell 31 of the muffler 27, the end plate 32, and the partition plate 34.