A SELECTIVE CATALYTIC REDUCTION SYSTEM
    92.
    发明公开
    A SELECTIVE CATALYTIC REDUCTION SYSTEM 审中-公开
    系统ZUR SELEKTIVEN KATALYTISCHEN REDUKTION

    公开(公告)号:EP3103978A1

    公开(公告)日:2016-12-14

    申请号:EP15171173.6

    申请日:2015-06-09

    摘要: This disclosure provides a selective catalytic reduction (SCR) system (11) configured to optimise its NOx conversion efficiency. The SCR system (11) comprises a reductant injector (43) for injecting reductant fluid into the exhaust gas, the reductant fluid comprising or being capable of forming ammonia. An SCR catalyst (44) is located downstream of the reductant injector (43) and a heat transfer arrangement (45) is located at or upstream of the SCR catalyst (44). A controller is configured to operate the heat transfer arrangement (45) to maintain the temperature (80) of the SCR catalyst (44) at or below a predetermined upper temperature (88). The predetermined upper temperature (88) is selected based upon the temperature (80) of the SCR catalyst (44) required to maintain the amount of ammonia adsorbed by the SCR catalyst (44) above an ammonia coverage lower limit.

    摘要翻译: 本公开提供了配置成优化其NOx转化效率的选择性催化还原(SCR)系统(11)。 SCR系统(11)包括用于将还原剂流体注入废气中的还原剂喷射器(43),所述还原剂流体包含或能够形成氨。 SCR催化剂(44)位于还原剂喷射器(43)的下游,并且传热装置(45)位于SCR催化剂(44)的上游。 控制器被配置为操作热传递装置(45)以将SCR催化剂(44)的温度(80)维持在或低于预定的上限温度(88)。 基于将SCR催化剂(44)吸附的氨的量维持在氨覆盖下限以上所需的SCR催化剂(44)的温度(80)来选择预定的上限温度(88)。

    ARRANGEMENT FOR PROVIDING AN AFTERTREATMENT DEVICE HOUSING WITH AIR
    94.
    发明公开
    ARRANGEMENT FOR PROVIDING AN AFTERTREATMENT DEVICE HOUSING WITH AIR 审中-公开
    ANORDNUNG ZUR BEREITSTELLUNG EINESNACHBEHANDLUNGSVORRICHTUNGSGEHÄUSESMIT LUFT

    公开(公告)号:EP2982845A1

    公开(公告)日:2016-02-10

    申请号:EP15176395.0

    申请日:2015-07-13

    申请人: Deere & Company

    摘要: An arrangement for providing an aftertreatment device housing with air comprises a combustion air intake (100) disposed receive combustion air for combustion in an internal combustion engine (118); a first supercharger (104) disposed to receive combustion air from the combustion air intake (100); a first conduit (106) disposed to receive the combustion air compressed in the first supercharger (104); a second conduit (110) coupled to the first conduit (106) to receive a first portion of the combustion air compressed in the first supercharger (104) from the first conduit (106); and a third conduit (112) coupled to the first conduit (106) to receive a second portion of the combustion air compressed in the first supercharger (104), wherein the third conduit (112) is configured to convey the second portion into the aftertreatment device housing (113) which substantially surrounds an aftertreatment device (114).

    摘要翻译: 用于提供具有空气的后处理装置壳体的装置包括燃烧空气入口(100),其设置为接收用于在内燃机(118)中燃烧的燃烧空气; 第一增压器(104)设置成从燃烧空气进口(100)接收燃烧空气; 设置成接收在第一增压器(104)中压缩的燃烧空气的第一管道(106); 联接到所述第一管道(106)的第二管道(110),以接收从所述第一管道(106)在所述第一增压器(104)中被压缩的所述燃烧空气的第一部分; 以及联接到所述第一管道(106)以接收在所述第一增压器(104)中被压缩的所述燃烧空气的第二部分的第三管道(112),其中所述第三管道(112)构造成将所述第二部分输送到所述后处理 装置壳体(113),其基本上围绕后处理装置(114)。

    CATALYTIC CONVERTER APPARATUS
    97.
    发明公开
    CATALYTIC CONVERTER APPARATUS 有权
    Katalysator

    公开(公告)号:EP2746549A3

    公开(公告)日:2014-11-19

    申请号:EP13198794.3

    申请日:2013-12-20

    申请人: EC Power A/S

    发明人: FØRSTER, Jesper

    IPC分类号: F01N3/20 F01N3/28

    摘要: A catalytic converter apparatus comprises: a catalytic converter 2; a flow path for directing exhaust gas 10 through the catalytic converter 2; a cavity 20 for housing the catalytic converter 2; and a cooling apparatus for cooling at least a part of an inner surface 28 of the cavity 20; wherein when the catalytic converter 2 is housed within the cavity 20 a gap 26 is formed between the inner surface 28 of the cavity and an outer surface 32 of the catalytic converter 2 with the gap 26 extending around a major portion of the outer surface 32 of the catalytic converter 2.

    摘要翻译: 催化转化器装置包括:催化转化器2; 用于引导废气10通过催化转化器2的流动路径; 用于容纳催化转化器2的空​​腔20; 以及用于冷却腔20的内表面28的至少一部分的冷却装置; 其中当催化转化器2容纳在空腔20内时,空腔26形成在空腔的内表面28和催化转化器2的外表面32之间,间隙26围绕外壁32的外表面32的主要部分延伸 催化转化器2。

    VORRICHTUNG ZUR ABGASNACHBEHANDLUNG MIT EINER DOSIEREINHEIT FÜR EIN ABGASNACHBEHANDLUNGSMITTEL
    98.
    发明公开
    VORRICHTUNG ZUR ABGASNACHBEHANDLUNG MIT EINER DOSIEREINHEIT FÜR EIN ABGASNACHBEHANDLUNGSMITTEL 审中-公开
    DEVICE FOR后处理用稀释单元,其用于一个后处理MEDIUM

    公开(公告)号:EP2795077A1

    公开(公告)日:2014-10-29

    申请号:EP12812624.0

    申请日:2012-12-20

    IPC分类号: F01N3/20

    摘要: The invention relates to a device (1) for treating an exhaust gas (3) of an internal combustion engine (4) that flows through an exhaust line (2), comprising at least one dosing unit (5) that is arranged in an opening (6) of an exhaust pipe (7) of the exhaust line (2) and is configured to add an exhaust treatment agent (8) into the exhaust line (2), wherein the dosing unit (5) is enclosed by a cooling sheath (9), by means of which the dosing unit (5) is fastened in the opening (6) of the exhaust pipe (7), wherein the cooling sheath (9) is at least partially enclosed by a chamber (10) that is delimited at least by the cooling sheath (9), the exhaust pipe (7), and a cover plate (11), wherein the cover plate (11) is connected to the exhaust pipe (7) and spaced apart from the cooling sheath (9) or the dosing unit (5) by a gap (12).