Patent ID: 8402758
Filing Date: 2013-03-26
Classification: F01N

Abstract:
1. A flow diffuser for vehicles of the type having an engine and an exhaust pipe, the flow diffuser comprising: (a) a body including a plurality of inner diffusion ports extending through the body, wherein the body is attachable to an exhaust pipe at or near the exit plane of the exhaust pipe and transverse to the flow of exhaust through the exhaust pipe, wherein the body is polygonal in shape and mates with the outer perimeter of the exhaust pipe at a plurality of points, and wherein the body is sized to have a cross-sectional area that is smaller than the cross-sectional area of the exit plane of the exhaust pipe to create a plurality of outer diffusion ports around at least a portion of the outer perimeter of the body when coupled to the exhaust pipe between adjacent points; and (b) one or more extension flaps extending from at least a portion of the outer perimeter of the body.