尿素ＳＣＲシステム

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专利权人:

いすゞ自動車株式会社

发明人:

大角 和生

申请号：

JP20130111749

公开号：

JP6119426(B2)

申请日:

2013.05.28

申请国别(地区):

日本

年份:

2017

代理人:

摘要：

PROBLEM TO BE SOLVED: To provide a urea SCR system capable of improving an NOx purification rate in a high temperature range.SOLUTION: In a urea SCR system in which a DOC 11, a DPF 12, and an SCR 13 are connected to an exhaust pipe 10 of an engine and a urea injection nozzle 14 is provided upstream of the SCR 13, an ammonia reforming catalyst 15 reforming ammonia is provided downstream of the SCR 13. When the temperature of exhaust gas is low, NOx is purified in the SCR 13. When the temperature of exhaust gas is high, unreacted ammonia is reformed in the ammonia reforming catalyst 15 to produce hydrogen, and NOx is purified by the hydrogen.

来源网站：

中国工程科技知识中心

来源网址：

http://www.ckcest.cn/home/