INJECTOR CLEANING SYSTEM BASED ON PRESSURE DECAY
    3.
    发明申请
    INJECTOR CLEANING SYSTEM BASED ON PRESSURE DECAY 审中-公开
    基于压力衰减的注射器清洁系统

    公开(公告)号:WO2008150373A1

    公开(公告)日:2008-12-11

    申请号:PCT/US2008/006461

    申请日:2008-05-21

    Abstract: An injector cleaning system (13) for use with an exhaust treatment device is disclosed. The injector cleaning system may have a supply of injection fluid (64) and an injector (52) configured to receive and inject the injection fluid. The injector cleaning system may also have a pressure sensor (60) associated with the injector to generate a signal indicative of the pressure of the injection fluid supplied to the injector. The injector cleaning system may further have a controller (62) in communication with the injector and the pressure sensor. The controller may be configured to determine a pressure decay rate of injection fluid supplied to the injector during a normal injection event based on the signal. The controller may be further configured to compare the determined pressure decay rate to an expected pressure decay rate, and supply cleaning fluid to the injector based on the comparison.

    Abstract translation: 公开了一种与废气处理装置一起使用的喷射器清洁系统(13)。 注射器清洁系统可以具有供给注射流体(64)和注射器(52),其配置成接收和注入注射流体。 喷射器清洁系统还可以具有与喷射器相关联的压力传感器(60),以产生指示供应给喷射器的喷射流体的压力的信号。 喷射器清洁系统还可以具有与喷射器和压力传感器连通的控制器(62)。 控制器可以被配置为基于该信号来确定在正常喷射事件期间供应给喷射器的喷射流体的压力衰减速率。 控制器还可以被配置为将确定的压力衰减速率与预期的压力衰减速率进行比较,并且基于该比较将清洁流体供应到喷射器。

    FUEL SUPPLY COMPONENT PURGING SYSTEM
    5.
    发明申请
    FUEL SUPPLY COMPONENT PURGING SYSTEM 审中-公开
    燃油供应组件清洗系统

    公开(公告)号:WO2008020935A1

    公开(公告)日:2008-02-21

    申请号:PCT/US2007/015839

    申请日:2007-07-12

    Abstract: A method of purging fuel supply components for a combustion chamber of a regeneration assembly (36) is disclosed. A regeneration cycle is performed during which fuel is supplied from a fuel source (22) to the combustion chamber with fuel supply components including a fuel supply circuit (48) and at least one fuel injector unit (40). At least a first purging cycle is initiated to purge residual fuel from the fuel supply components. During the purging cycle, a flow of purging gas is directed to the at least one fuel injector unit (40) to purge residual fuel from the at least one fuel injector unit (40). Also during the purging cycle, a flow of purging gas is directed to the fuel supply circuit (48) to purge at least a portion of the fuel in the fuel supply circuit (48) toward the fuel source (22).

    Abstract translation: 公开了一种清洗再生组件(36)的燃烧室的燃料供给部件的方法。 执行再生循环,在该再生循环期间,燃料从燃料源(22)供应到燃烧室,燃料供给部件包括燃料供给回路(48)和至少一个燃料喷射器单元(40)。 开始至少第一吹扫循环以从燃料供应部件清除残余燃料。 在净化循环期间,净化气体的流动被引导至至少一个燃料喷射器单元(40),以从至少一个燃料喷射器单元(40)中清除剩余燃料。 此外,在净化循环期间,净化气体的流动被引导到燃料供应回路(48),以向燃料源(22)吹扫燃料供应回路(48)中的至少一部分燃料。

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