发明名称 |
Mixing Apparatus for an Exhaust After-Treatment System |
摘要 |
A mixing apparatus mountable within a generally cylindrical passage defined by an exhaust gas conduit of an exhaust gas after-treatment system is provided. The passage includes an outer region and an inner region operable to convey an exhaust stream and a liquid stream, such as a urea stream. The mixing apparatus includes a retainer ring operable to retain the mixing apparatus within the passage. A first plurality of fins extends from the retainer ring and is operable to impart a rotational velocity component in a first direction to the exhaust stream and urea stream in the outer region of the passage. A second plurality of fins extends from the retainer ring and is operable to impart a rotational velocity component in a second direction, opposite the first direction, to the exhaust stream and urea stream in the inner region of the passage. |
申请公布号 |
US2008250776(A1) |
申请公布日期 |
2008.10.16 |
申请号 |
US20070735780 |
申请日期 |
2007.04.16 |
申请人 |
GM GLOBAL TECHNOLOGY OPERATIONS, INC. |
发明人 |
BROWN DAVID B.;MITAL RAHUL;JAFFRI KASSER A.;FUQUA KEVIN B. |
分类号 |
F01N3/28 |
主分类号 |
F01N3/28 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|