Patent ID: 8241578
Filing Date: 2012-08-14
Classification: F01N,Y02A

Abstract:
1. A catalytic apparatus for a vehicle, comprising: a caning that is a single hollow unit with both distal ends open; a front substrate and a rear substrate that are disposed apart from each other with a predetermined space therebetween in the caning; and a front flange that is connected to one of the distal ends of the caning to be joined with a front muffler pipe connected to an exhaust manifold and has a bottom portion inclined toward the center axis of the front substrate in the vertical cross section; wherein the front flange has an inlet portion that is connected with the front muffler pipe and allows exhaust gas to flow inside and an outlet portion that is connected to the one of the distal ends of the canning and allows the exhaust gas to be discharged therethrough; wherein the bottom portion is a surface connecting the inlet portion and the outlet portion and gradually inclined upward from the inlet portion to the outlet portion such that the center axis of the outlet portion is aligned with the center axis of the front substrate; and wherein the outlet portion of the front flange in diameter is formed larger than the inlet portion in diameter.