Patent ID: 8468811
Filing Date: 2013-06-25
Classification: F01N

Abstract:
1. In a land vehicle of the type having an engine and an exhaust system including an exhaust pipe, a flow diffuser for the exhaust pipe, the flow diffuser comprising: (a) a tubular body having an outer wall, an interior, and first and second ends, the first end being an exhaust inlet configured to be attachable to an exhaust pipe, the second end being an exhaust discharge portion having an exit plane; (b) a plurality of radial struts extending inwardly from the inner surface of the outer wall to the center of the exit plane for dividing the exhaust discharge portion divided into a plurality of exit channels, wherein each of the plurality of struts has a first and end, a second end, a length, and an inner channel, extending, through the strut along at least a portion of the length; and (c) a plurality of holes extending through the outer wall to the interior of the tubular body configured for delivering air to the interior of the tubular body, wherein at least some of the plurality of holes interface with the plurality of struts, such that the plurality of holes form a plurality of inlets to the inner channels extending through the plurality of struts on the outer wall of the tubular body at the first ends of the plurality of struts, and wherein a plurality of outlets are spaced from the inlets along the lengths of the plurality of struts and internal to the tubular body.