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    • 10. 发明授权
    • Space efficient exhaust aftertreatment filter
    • 空间效率排气后处理过滤器
    • US06824743B1
    • 2004-11-30
    • US09577560
    • 2000-05-24
    • Kenneth PawsonWilliam C. Haberkamp
    • Kenneth PawsonWilliam C. Haberkamp
    • F01N3021
    • F01N3/28F01N1/084F01N3/021F01N3/0217F01N3/035F01N2470/18F01N2470/22Y10S55/10Y10S55/30
    • An exhaust aftertreatment filter (20) includes a housing (22) extending axially along an axis (28) between distally opposite first and second ends (30 and 32), a first port (34) at the first end of the housing, a second port (36) also at the first end of the housing, one of the first and second ports being an inlet, and the other being an outlet, the housing having an intermediate section (38) between the distally opposite ends, the intermediate section having a given cross sectional area A1 along a sectional plane transverse to the axis, a catalytic exhaust filter element (24) in the intermediate section and entirely filling the cross sectional area A1 except for a smaller cut-out (40) in the exhaust filter element of cross sectional area A2, the exhaust filter element having a cross sectional area A3=A1−A2, a transfer tube (26) extending through the cut-out and communicating with the second port. Exhaust flows axially (42) through the exhaust filter element between first and second distally opposite sides (44 and 46) of the exhaust filter element, the first side facing the first end of the housing, the second side facing the second end of the housing, exhaust flowing axially through the exhaust filter element in one axial direction (42) and flowing through the transfer tube and cut-out in the opposite axial direction (48).
    • 排气后处理过滤器(20)包括在远端相对的第一和第二端(30和32)之间沿着轴线(28)轴向延伸的壳体(22),在壳体的第一端处的第一端口(34) 端口(36)也在壳体的第一端处,第一和第二端口中的一个是入口,另一个是出口,壳体在远端相对端之间具有中间部分(38),中间部分具有 沿横向于轴线的横截面的给定截面面积A1,在中间部分中的催化排气过滤元件(24),并且在排气过滤元件中除了较小切口(40)之外,完全填充横截面积A1 的横截面积A2,排气过滤元件具有横截面积A3 = A1-A2,延伸穿过切口并与第二端口连通的传送管(26)。 排气在排气过滤器元件的第一和第二远端相对侧(44和46)之间通过排气过滤器元件轴向(42)流动,第一侧面对壳体的第一端,第二面朝向壳体的第二端 排气在一个轴向(42)上轴向流过排气过滤元件并流过传送管并沿相反的轴向方向(48)切断。