公开(公告)号：US20120145268A1

公开(公告)日：2012-06-14

申请号：US12962998

申请日：2010-12-08

申请人： Bryan Clarke ,  Christopher Lee ,  Rajendra Sharma ,  Praveen Kumar Reddy Mallu

发明人： Bryan Clarke ,  Christopher Lee ,  Rajendra Sharma ,  Praveen Kumar Reddy Mallu

IPC分类号： F16L55/027

CPC分类号： F01N13/082 ,  F01N2590/08

摘要： An exhaust stack for an internal combustion engine includes an upstream segment having a proximal portion and a distal portion, and a downstream segment. The distal portion of the upstream segment has a non-circular cross section and at least partially defines a venturi opening. The downstream segment has a downstream proximal portion that at least partially defines the venturi opening. The distal portion defines a flow area that is less than or equal to a flow area of the proximal portion, and defines a perimeter that is greater than a perimeter of the proximal portion.

摘要翻译： 用于内燃机的排气叠层包括具有近端部分和远端部分的上游部分和下游部分。 上游段的远端部分具有非圆形横截面并且至少部分地限定文氏管开口。 下游段具有至少部分限定文氏管开口的下游近端部分。 远侧部分限定小于或等于近端部分的流动面积的流动面积，并限定大于近端部分的周边的周长。