| 摘要 |
<p>A compact, knitted, crimped wire mesh mixer (131) disposed in the exhaust system (103) of an internal combustion engine (101), between the nozzle (129) of a reductant injection unit and a selective catalytic reduction unit (109), significantly increases the uniformity of the reductant in the exhaust stream (135) by the time the stream reaches the catalysis unit (113). The wire mesh mixer (131) has a density that is less than or equal to 5% and a circumferential contact area between the mixer (131) and the conduit (107) of the exhaust system (103) to which the mixer (131) is attached that is less than or equal to 50%, e.g., the circumferential contact area is approximately 20%.</p> |
