INJECTOR NOZZLE COKING COMPENSATION STRATEGY
    1.
    发明申请
    INJECTOR NOZZLE COKING COMPENSATION STRATEGY 有权
    喷嘴喷嘴补偿策略

    公开(公告)号:US20140000566A1

    公开(公告)日:2014-01-02

    申请号:US14005263

    申请日:2011-03-18

    Abstract: Systems and methods for compensating for nozzle coking in fuel injection system include creating expected fuel flow rate formula for selected fuel injection nozzle, operating selected fuel injection nozzle for a time, measuring fuel pressure and injector control valve on-time of fuel injection nozzle during operation, determining expected fuel flow ate for measured fuel pressure and injector control valve on-time, measuring actual fuel flow rate of fuel injection nozzle, determining coking condition of fuel injection nozzle, and automatically altering injector control valve on-time to compensate. Expected fuel flow rate formula is determined as function of fuel pressure and injector control valve on-time, while actual fuel flow rate is measured by flow rate sensor attached to injection system. Sometimes, coking condition determination is based on difference between actual fuel flow rate and expected flow rate. Compensation in control valve on-time is necessitated by deterioration in actual fuel flow to cylinder.

    Abstract translation: 用于补偿燃料喷射系统中的喷嘴焦化的系统和方法包括为所选择的燃料喷射喷嘴创建预期的燃料流量公式,在操作期间操作选定的燃料喷嘴,测量燃料压力和喷射器控制阀导通时间 ,测量燃料压力和喷油器控制阀的预期燃料流量,测量燃料喷射喷嘴的实际燃油流量,确定燃油喷嘴的焦化状态,并及时自动改变喷油器控制阀进行补偿。 预计的燃油流量公式由燃油压力和喷油器控制阀的导通时间决定,而实际的燃油流量是通过喷油系统附带的流量传感器来测量的。 有时,焦化条件的确定是基于实际燃油流量与预期流量之差。 控制阀导通时间的补偿是通过实际燃油流向汽缸的劣化所必须的。

    UNIT FUEL INJECTOR HAVING A CAVITY IN A SPRING CAGE AND AN INJECTION PASSAGE OFFSET FROM THE CAVITY AXIS
    2.
    发明申请
    UNIT FUEL INJECTOR HAVING A CAVITY IN A SPRING CAGE AND AN INJECTION PASSAGE OFFSET FROM THE CAVITY AXIS 审中-公开
    单位燃油喷射器在弹簧笼中有一个空腔,并且从CAVITY轴上注射通气

    公开(公告)号:US20130221136A1

    公开(公告)日:2013-08-29

    申请号:US13824938

    申请日:2010-09-13

    Abstract: A unit fuel injector (30) has a reverse flow check (122) disposed in a circular reverse flow check cavity (124) to substantially close an exit through-passage (112) to the cavity which has a central axis (125) parallel to and spaced radially from a longitudinal axis (AX) of the unit fuel injector. The exit through-passage opens to the circular reverse flow check cavity at the central axis of the circular reverse flow check cavity. An adjoining cavity (131) distally adjoins the circular reverse flow check cavity. A passage (132) that at the adjoining cavity is radially off-set from the central axis of the circular cavity extends distally to a distal end of the spring cage.

    Abstract translation: 单元燃料喷射器(30)具有设置在圆形反向流动检查空腔(124)中的逆流检查(122),以基本上将出口通过通道(112)封闭到具有中心轴线(125)平行的空腔 并且与所述单元燃料喷射器的纵向轴线(AX)径向间隔开。 出口通过通道在圆形反向流动检查腔的中心轴线处通向圆形反向流动检查腔。 一个相邻的空腔(131)向远侧邻接圆形反向流动检查腔。 在相邻的腔体处从圆形空腔的中心轴线径向脱离的通道(132)向远侧延伸到弹簧笼的远端。

    Method of compensating for injector aging
    3.
    发明授权
    Method of compensating for injector aging 有权
    补偿注射器老化的方法

    公开(公告)号:US09416748B2

    公开(公告)日:2016-08-16

    申请号:US14114563

    申请日:2011-04-29

    Abstract: A method of controlling a fuel injector is provided. Engine speed is monitored. Engine torque output is monitored. It is determined if the engine speed is within one of a plurality of predefined engine speed ranges. It is determined if the engine torque output is within one of a plurality of predefined engine torque output ranges. One of a plurality of injector coking factors is assigned based on the determined predefined engine speed range and the determined predefined engine torque output range. A total injector coking factor is calculated based upon total operating time within each of the plurality of injector coking factors. A duration of a fuel injection is increased based upon the calculated total injector coking factor.

    Abstract translation: 提供一种控制燃料喷射器的方法。 监测发动机转速。 发动机转矩输出被监控。 确定发动机转速是否在多个预定的发动机转速范围内。 确定发动机扭矩输出是否在多个预定的发动机扭矩输出范围之一内。 基于所确定的预定义的发动机速度范围和所确定的预定义的发动机转矩输出范围来分配多个喷射器焦化因子中的一个。 基于多个注射器焦化因子中的每一个内的总操作时间计算总喷射器焦化因子。 燃料喷射的持续时间根据计算的总喷射器焦化因子而增加。

    Injector nozzle coking compensation strategy
    4.
    发明授权
    Injector nozzle coking compensation strategy 有权
    注射器喷嘴焦化补偿策略

    公开(公告)号:US09249743B2

    公开(公告)日:2016-02-02

    申请号:US14005263

    申请日:2011-03-18

    Abstract: Systems and methods for compensating for nozzle coking in fuel injection system include creating expected fuel flow rate formula for selected fuel injection nozzle, operating selected fuel injection nozzle for a time, measuring fuel pressure and injector control valve on-time of fuel injection nozzle during operation, determining expected fuel flow rate for measured fuel pressure and injector control valve on-time, measuring actual fuel flow rate of fuel injection nozzle, determining coking condition of fuel injection nozzle, and automatically altering injector control valve on-time to compensate. Expected fuel flow rate formula is determined as function of fuel pressure and injector control valve on-time, while actual fuel flow rate is measured by flow rate sensor attached to injection system. Sometimes, coking condition determination is based on difference between actual fuel flow rate and expected flow rate. Compensation in control valve on-time is necessitated by deterioration in actual fuel flow to cylinder.

    Abstract translation: 用于补偿燃料喷射系统中的喷嘴焦化的系统和方法包括为所选择的燃料喷射喷嘴创建预期的燃料流量公式,在操作期间操作选定的燃料喷嘴,测量燃料压力和喷射器控制阀导通时间 测量燃油压力和喷油器控制阀的准时燃料流量,测量燃油喷嘴的实际燃油流量,确定燃油喷嘴的焦化状态,及时自动改变喷油器控制阀进行补偿。 预计的燃油流量公式由燃油压力和喷油器控制阀的导通时间决定,而实际的燃油流量是通过喷油系统附带的流量传感器来测量的。 有时,焦化条件的确定是基于实际燃油流量与预期流量之差。 控制阀导通时间的补偿是通过实际燃油流向汽缸的劣化所必须的。

    METHOD OF COMPENSATING FOR INJECTOR AGING
    6.
    发明申请
    METHOD OF COMPENSATING FOR INJECTOR AGING 有权
    注射器老化的补偿方法

    公开(公告)号:US20140060495A1

    公开(公告)日:2014-03-06

    申请号:US14114563

    申请日:2011-04-29

    Abstract: A method of controlling a fuel injector is provided. Engine speed is monitored. Engine torque output is monitored. It is determined if the engine speed is within one of a plurality of predefined engine speed ranges. It is determined if the engine torque output is within one of a plurality of predefined engine torque output ranges. One of a plurality of injector coking factors is assigned based on the determined predefined engine speed range and the determined predefined engine torque output range. A total injector coking factor is calculated based upon total operating time within each of the plurality of injector coking factors. A duration of a fuel injection is increased based upon the calculated total injector coking factor.

    Abstract translation: 提供一种控制燃料喷射器的方法。 监测发动机转速。 发动机转矩输出被监控。 确定发动机转速是否在多个预定的发动机转速范围内。 确定发动机扭矩输出是否在多个预定的发动机扭矩输出范围之一内。 基于所确定的预定义的发动机速度范围和所确定的预定义的发动机转矩输出范围来分配多个喷射器焦化因子中的一个。 基于多个注射器焦化因子中的每一个内的总操作时间计算总喷射器焦化因子。 燃料喷射的持续时间根据计算的总喷射器焦化因子而增加。

Patent Agency Ranking