发明名称 |
UREA WATER FEEDER FOR INTERNAL COMBUSTION ENGINE |
摘要 |
An internal combustion engine wherein when an aqueous urea solution should be fed from an aqueous urea solution feed valve (8), a feed pump (9) is operated forward and aqueous urea solution in an aqueous urea solution tank (4) is fed through an aqueous urea solution feed passage (10) into the aqueous urea solution feed valve (8). When ceasing the feed of aqueous urea solution from the aqueous urea solution feed valve (8), the feed pump (9) is operated in reverse whereby the ammonia gas generated in the aqueous urea solution tank (4) is drawn through a ammonia gas feed pipe (11) into the aqueous urea solution feed passage (10). Next, when the feed pump (9) is operated forward, the ammonia gas drawn into the aqueous urea solution feed path (10) is ejected from the aqueous urea solution feed valve (8).
|
申请公布号 |
EP2256310(A1) |
申请公布日期 |
2010.12.01 |
申请号 |
EP20090710046 |
申请日期 |
2009.02.06 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
ASAURA, SHINYA;ODA, TOMIHISA;TOSHIOKA, SHUNSUKE;TANAI, YUTAKA |
分类号 |
F01N3/20;B01D53/94 |
主分类号 |
F01N3/20 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|