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    • 1. 发明公开
    • Injector water intrusion seal with blow out volume
    • AusstoßvolumenInjektor-Wassereindringdichtung
    • EP2886846A1
    • 2015-06-24
    • EP14189320.6
    • 2014-10-17
    • Continental Automotive Systems US, Inc.
    • McFarland, Robert Wayne
    • F02M65/00F02M55/00F01N3/20
    • F01N3/2066F01N2610/02F01N2610/1453F02M55/005F02M61/168F02M65/006F02M2200/16Y10T29/494
    • A fluid injector (10') includes a housing (26) and an inlet tube (30) having a portion received in the housing (26). A primary seal (12) creates a seal between surfaces of the housing (26), the inlet tube (30), and an inlet (20) of the injector. A groove (38) is in the housing (26) and a secondary seal (18) is in the groove (38) to defining a seal between the housing (26) and a portion of the inlet (20) of the injector. A recessed portion (40) is defined in the housing (26) and is in communication with the groove (38). The recessed portion (40) defines a blow-out volume (42) such that when the primary seal (12) is leak tested, an indication of a leak of the primary seal (12) can be detected when the pressurized air moves past the primary seal (12) and forces a portion of the secondary seal (18) to an unsealed position into the blow-out volume (42).
    • 流体注射器(10')包括壳体(26)和具有容纳在壳体(26)中的部分的入口管(30)。 主密封件(12)在壳体(26)的表面,入口管(30)和注射器的入口(20)之间产生密封。 凹槽(38)在壳体(26)中,并且次级密封件(18)位于凹槽(38)中,以在壳体(26)和喷射器的入口(20)的一部分之间限定密封。 凹部(40)限定在壳体(26)中并与凹槽(38)连通。 凹部(40)限定了吹出容积(42),使得当主密封件(12)被泄漏测试时,当加压空气移动经过该密封件(12)时,可以检测到主密封件(12)泄漏的指示 主密封件(12)并且将次级密封件(18)的一部分推动到未密封位置进入吹出容积(42)。
    • 7. 发明公开
    • Reductant delivery unit for selective catalytic reduction
    • 用于选择性催化还原的还原剂输送单元
    • EP2538049A1
    • 2012-12-26
    • EP12157523.7
    • 2008-03-28
    • Continental Automotive Systems US, Inc.
    • Bugos, Stephen C.Hornby, Michael J.Imoehl, William JamesVan Vuuren, William NicolaasWildeson, Ray Thomas
    • F01N3/20
    • F01N3/2066F01N2240/20F01N2570/14F01N2610/02F01N2610/10F01N2610/1453F01N2610/1486Y02A50/2325Y02T10/24Y10T137/0486Y10T137/6606Y10T137/7833Y10T137/7886
    • A reductant delivery unit (10) is provided for selective catalytic reduction (SCR) after-treatment for vehicles. The unit includes a solenoid fluid injector (10) constructed and arranged to be associated with an exhaust gas flow path (14) upstream of a SCR catalytic converter (17). The fluid injector has a fluid inlet (13) and a fluid outlet (15) with the fluid inlet being constructed and arranged to receive a source of urea solution and the fluid outlet being constructed and arranged to communicate directly with the exhaust flow path so as to control injection of urea solution into the exhaust gas flow path. An interface (24) is constructed and arranged to couple the fluid injector to the gas flow path. The interface defines a thermal barrier constructed and arranged to decoupled a body of the injector from exposure to heat in the exhaust gas flow path. The solenoid fluid injector (12) further comprising a thermal compensation assembly in communication with the inlet (13) and constructed and arranged to accommodate expansion of the urea solution upon freezing thereof.
    • 提供还原剂输送单元(10)用于车辆的选择性催化还原(SCR)后处理。 该单元包括电磁流体喷射器(10),该电磁流体喷射器构造和布置成与SCR催化转化器(17)上游的排气流动路径(14)相关联。 流体喷射器具有流体入口(13)和流体出口(15),流体入口被构造和布置为接收尿素溶液源,并且流体出口被构造和布置成直接与排气流动路径连通,以便 以控制尿素溶液向排气流动路径中的喷射。 接口(24)被构造并布置成将流体喷射器联接到气体流动路径。 该界面限定了热障,该热障被构造和布置成将喷射器的主体与排气流动路径中的热量分开。 所述电磁流体喷射器(12)还包括与所述入口(13)连通的热补偿组件,所述热补偿组件与所述入口(13)连通,并且被构造和布置成适应在其冷冻时尿素溶液的膨胀。