SELECTIVE CATALYTIC REDUCTION SYSTEM
    2.
    发明申请
    SELECTIVE CATALYTIC REDUCTION SYSTEM 审中-公开
    选择性催化还原系统

    公开(公告)号:US20130055700A1

    公开(公告)日:2013-03-07

    申请号:US13698161

    申请日:2011-05-16

    IPC分类号: F01N9/00 F01N3/20 F01N11/00

    摘要: A selective catalytic reduction system includes a urea aqueous solution tank to retain a urea aqueous solution to be injected into an exhaust pipe of an engine, a level sensor to detect a solution level height in the tank, a lowpass filter having a signal response characteristic in which a time constant is small when an engine rpm is low and the time constant is larger when the engine rpm is high, with respect to an output signal of the sensor, a remaining amount indicator to indicate a remaining amount of the solution based on an output signal of the sensor processed by the lowpass filter, and a unit to prohibit the engine from being started when the remaining amount of the solution is less than a lower limit value.

    摘要翻译: 选择性催化还原系统包括:尿素水溶液罐,用于保持要注入发动机的排气管的尿素水溶液;检测罐中溶液液面高度的液位传感器;具有信号响应特性的低通滤波器 当发动机转速低时时间常数小,并且当发动机转数高时,时间常数相对于传感器的输出信号较大,剩余量指示器指示基于 由低通滤波器处理的传感器的输出信号,以及当溶液的剩余量小于下限值时禁止发动机的单元。

    Diesel engine
    3.
    发明申请
    Diesel engine 有权
    柴油发动机

    公开(公告)号:US20050061298A1

    公开(公告)日:2005-03-24

    申请号:US10945479

    申请日:2004-09-20

    摘要: A diesel engine comprises a high-pressure pump (5) driven by an engine (E) to supply fuel in a fuel tank (2) to a common rail (3), an electric priming pump (13) provided in a fuel passage (15) extending from the fuel tank (2) to the high-pressure pump (5), and a control device (10) to control the electric priming pump (13). The control device (10) drives the electric priming pump (13) when the engine is started, if a state that the engine rotating speed (Ne) is higher than a predetermined first rotating speed (N1) and the common rail pressure (Cp) is lower than a predetermined first pressure (C1) continues for a period being equal to or more than a predetermined first period (T1). The burden on the operator is mitigated since necessity for the priming operation can be automatically judged.

    摘要翻译: 柴油发动机包括由发动机(E)驱动以将燃料箱(2)中的燃料供应到共轨(3)的高压泵(5),设置在燃料通道中的电动启动泵(13) 15)从燃料箱(2)延伸到高压泵(5),以及控制装置(10)来控制电动泵(13)。 如果发动机转速(Ne)高于预定的第一转速(N1)和共轨压力(Cp)的状态,则控制装置(10)在发动机启动时驱动电动泵(13) 低于预定的第一压力(C1)持续一段时间等于或大于预定的第一时段(T1)。 减轻了操作者的负担,因为可以自动判断启动操作的必要性。

    Diesel engine
    4.
    发明授权
    Diesel engine 有权
    柴油发动机

    公开(公告)号:US06923159B2

    公开(公告)日:2005-08-02

    申请号:US10945479

    申请日:2004-09-20

    摘要: A diesel engine comprises a high-pressure pump (5) driven by an engine (E) to supply fuel in a fuel tank (2) to a common rail (3), an electric priming pump (13) provided in a fuel passage (15) extending from the fuel tank (2) to the high-pressure pump (5), and a control device (10) to control the electric priming pump (13). The control device (10) drives the electric priming pump (13) when the engine is started, if a state that the engine rotating speed (Ne) is higher than a predetermined first rotating speed (N1) and the common rail pressure (Cp) is lower than a predetermined first pressure (C1) continues for a period being equal to or more than a predetermined first period (T1). The burden on the operator is mitigated since necessity for the priming operation can be automatically judged.

    摘要翻译: 柴油发动机包括由发动机(E)驱动以将燃料箱(2)中的燃料供应到共轨(3)的高压泵(5),设置在燃料通道中的电动启动泵(13) 15)从燃料箱(2)延伸到高压泵(5),以及控制装置(10)来控制电动泵(13)。 如果发动机转速(Ne)高于预定的第一转速(N 1)和共轨压力(Cp)的状态,则控制装置(10)在发动机起动时驱动电动泵(13) )低于预定的第一压力(C 1)持续一段时间等于或大于预定的第一时段(T 1)。 减轻了操作者的负担,因为可以自动判断启动操作的必要性。