Patent ID: 7407036

Claim:
A muffler for a compact combustion engine for deadening exhaust gases emitted by the compact engine, which muffler comprises: a muffler housing defining an exhaust chamber therein; an exhaust guide passage provided within an interior hollow of the muffler housing and communicated with a discharge port; and a side wall defining the exhaust guide passage, the side wall being constituted by a portion of the muffler housing and a duct wall jointed to the muffler housing, and wherein the exhaust chamber is divided by a horizontally extending partition wall into an upper upstream compartment and a lower downstream compartment with a catalytic converter supported by the horizontally extending partition wall for substantially purifying the exhaust gases, and an inlet opening of the exhaust guide passage is positioned within the downstream compartment, wherein a downstream portion of the duct wall is positioned within the upstream compartment, and wherein the discharge port is positioned in an upper region of the upstream compartment.