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公开(公告)号:KR1020090095522A
公开(公告)日:2009-09-09
申请号:KR1020090018987
申请日:2009-03-05
Applicant: 커민스 리미티드
CPC classification number: F01N3/2066 , B01D35/30 , B01D2201/403 , F01N2610/02 , F01N2610/1426 , F01N2610/1433 , F01N2610/1453 , F04B17/03 , F04B23/00 , F04B43/04 , Y02A50/2325 , Y02T10/24
Abstract: An exhaust post-treatment device is provided to prevent the spraying nozzle of the dosing unit from being blocked because the minute pressure filter is provided in the pump unit. An exhaust post-treatment device comprises a pump unit(1). The pump unit comprises a diaphragm pump(2), a pressure filter(3) and a control unit(4). The control unit controls the diaphragm pump. The diaphragm pump inhales the aqueous urea solution from the circulation unit. The diaphragm pump pumps the aqueous urea solution through the pressure filter towards the dosing unit to spray the aqueous urea solution into the exhaust flow. The dosing unit comprises the spraying nozzle.
Abstract translation: 提供了排气后处理装置,以防止计量单元的喷嘴被堵塞,因为在微型压力过滤器设置在泵单元中。 排气后处理装置包括泵单元(1)。 泵单元包括隔膜泵(2),压力过滤器(3)和控制单元(4)。 控制单元控制隔膜泵。 隔膜泵从循环单元吸入尿素水溶液。 隔膜泵将尿素水溶液通过压力过滤器朝向计量单元泵送,以将尿素水溶液喷射到排气流中。 给料单元包括喷嘴。