Patent ID: 6199376
Filing Date: 2001-03-13
Classification: F01N

Abstract:
An exhaust system for an internal combustion engine, comprising:an exhaust manifold;an exhaust pipe coupled to the exhaust manifold, the exhaust pipe having a body defining an inlet end;the exhaust manifold including a first exhaust manifold conduit and a second exhaust manifold conduit,the first exhaust manifold conduit having a first downstream portion that extends into the exhaust pipe,the second exhaust manifold conduit having a second downstream portion that terminates at the inlet end, wherein the first exhaust manifold conduit and the second exhaust manifold conduit are each made from an inner pipe and an outer pipe disposed around the inner pipe, wherein a space between the inner pipe and the outer pipe extends between pipe ends; anda channel within the exhaust pipe defined by the first downstream portion and the body of the exhaust pipe, the channel communicating with the second downstream portion, and wherein the first downstream portion and the second downstream portion converge toward each other.