Patent ID: 7461505
Filing Date: 2008-12-09
Classification: F01N

Abstract:
1. An exhaust pipe of a vehicle, the exhaust pipe comprising: a storage space incorporating a catalyst carrier which is provided on a mid area of an exhaust pipe conduit; and an expanded portion, one end of the expanded portion connected to a single upstream pipe of the exhaust pipe and the other end of the expanded portion connected to the storage space, at least a part of the expanded portion having a diameter larger than a diameter of the storage space, the expanded portion provided on at least one of an upstream side and a downstream side of the exhaust pipe conduit, wherein the expanded portion comprises a circular cross-section cylindrical housing shaped as a protruding curve forming a gentle slope with a single peak that protrudes outwardly from the exhaust pipe, the gentle slope being gradual with no sharp changes in angle.