| 摘要 |
<p>PURPOSE: A device for decreasing nitrogen oxide of a diesel engine is provided to delete a distributing valve by forming the natural pressure difference due to EGR flow by improving the structure of an intake pipe and exhaust pipe. CONSTITUTION: A device for decreasing nitrogen oxide of a diesel engine comprises a pipe extension part(25) and a ventury part(35). The pipe extension part has the diameter of an exhaust pipe(20) is partially extended at the rear end of a diesel particulate matter filter. The exhaust gas is re-circulated in the ventury part. The diameter of an intake pipe(30), in which the intake air of a turbo charger(40) flows, is decreased.</p> |
