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    FUEL INJECTION CONTROLLER AND FUEL INJECTION SYSTEM
    1.
    发明申请
    FUEL INJECTION CONTROLLER AND FUEL INJECTION SYSTEM 有权
    燃油喷射控制器和燃油喷射系统

    公开(公告)号：US20160298565A1

    公开(公告)日：2016-10-13

    申请号：US15037447

    申请日：2014-11-10

    Applicant: DENSO CORPORATION

    Inventor： Hiroaki NAGATOMO ,  Makoto TANAKA

    IPC: F02D41/24 ,  F02M51/06 ,  F02D41/20

    CPC classification number: F02D41/2467 ,  F02D41/20 ,  F02D41/40 ,  F02D2041/2006 ,  F02D2041/2058 ,  F02D2041/2065 ,  F02M51/061 ,  F02M51/0671 ,  F02M51/0685 ,  Y02T10/44

    Abstract: A fuel injection controller includes an energization time period calculation portion adapted to calculate an energization time period of a coil responsive to a target injection amount; and a rise control portion adapted to apply a boosted voltage to the coil, along with start of the energization time period, and to raise an current flowing through the coil to a predetermined threshold value. When a range where timing of the current raised to have a peak value at the threshold value appears in accordance with a range of an operating temperature of the coil is defined as a peak appearance range W1, the target injection amount is set such that timing of completion of the energization time period Ti is timing deviated from the peak appearance range W1.

    Abstract translation: 燃料喷射控制器包括：通电时间计算部，其适于根据目标喷射量计算线圈的通电时间周期; 以及上升控制部分，其适用于向线圈施加升压电压以及通电时间段的开始，并且将流过线圈的电流升高到预定阈值。 当根据线圈的工作温度的范围出现电流上升到具有阈值的峰值的电流的范围被定义为峰值出现范围W1时，将目标喷射量设定为 通电时间段Ti的完成是从峰值出现范围W1偏离的时间。

    FUEL INJECTION VALVE FOR INTERNAL COMBUSTION ENGINE
    2.
    发明申请
    FUEL INJECTION VALVE FOR INTERNAL COMBUSTION ENGINE 有权
    燃油喷射阀内燃机

    公开(公告)号：US20140175194A1

    公开(公告)日：2014-06-26

    申请号：US14140693

    申请日：2013-12-26

    Applicant: DENSO CORPORATION

    Inventor： Keita IMAI ,  Eiji ITOH ,  Hiroaki NAGATOMO

    IPC: F02M51/06

    CPC classification number: F02M51/0614 ,  F02M51/0685 ,  F02M2200/08

    Abstract: A stationary core includes a holding hole that receives and holds a portion of the magnetic spring, which is located on a valve opening side. A solenoid device includes a magnetic yoke that extends in an axial direction and has an axial extent, which overlaps with an entire axial extent of the holding hole. The magnetic yoke has a predetermined portion, which reduces an amount of the magnetic flux that passes through the magnetic yoke in a radial direction in comparison to the rest of the magnetic yoke.

    Abstract translation: 固定铁心包括容纳并保持位于阀开口侧的一部分磁性弹簧的保持孔。 螺线管装置包括：磁轭，其在轴向方向上延伸并且具有与保持孔的整个轴向长度重叠的轴向延伸。 磁轭具有与磁轭的其余部分相比径向减小通过磁轭的磁通量的预定部分。

    FUEL INJECTION CONTROL UNIT
    4.
    发明申请
    FUEL INJECTION CONTROL UNIT 有权
    燃油喷射控制单元

    公开(公告)号：US20160237935A1

    公开(公告)日：2016-08-18

    申请号：US15030442

    申请日：2015-02-03

    Applicant: DENSO CORPORATION

    Inventor： Makoto TANAKA ,  Hiroaki NAGATOMO

    IPC: F02D41/20 ,  F02M45/12 ,  F02D41/24

    CPC classification number: F02D41/20 ,  F02D41/247 ,  F02D41/402 ,  F02D2041/2055 ,  F02D2200/0614 ,  F02M45/12

    Abstract: A fuel injection control unit includes an injection amount detector and a correction unit. When implementing partial lift injection where a valve closing operation is started after the valve body starts a valve opening operation and before a valve body reaches a maximum valve open position, the injection amount detector detects a physical quantity (valve closing timing) having a correlation with an injection amount. When implementing the partial lift injection, the correction unit corrects an energization time of a fuel injection valve on the basis of a detection value (learning value) that was previously detected by the injection amount detector. An energization time in a small amount region longer than a predetermined time in the partial lift injection is allowed to be corrected on the basis of a value (small amount time detection value) detected in the small amount region by the injection amount detector. On the other hand, an energization time in an extremely small amount region shorter than the predetermined time is prohibited from being corrected on the basis of the above small amount time detection value. As a result, a precision in the injection amount in the partial lift injection is improved.

    Abstract translation: 燃料喷射控制单元包括喷射量检测器和校正单元。 当在阀体开始开阀操作之后并且在阀体达到最大阀打开位置之前，当执行阀关闭操作的部分升程喷射时，喷射量检测器检测与具有相关性的物理量（阀闭合正时） 注射量。 在实施部分提升注入时，校正单元基于先前由喷射量检测器检测到的检测值（学习值）来校正燃料喷射阀的通电时间。 基于通过喷射量检测器在小量区域中检测到的值（小量时间检测值），允许在局部提升喷射中长于预定时间的少量区域中的通电时间被校正。 另一方面，基于上述小量时间检测值，禁止在比规定时间短的极小区域的通电时间进行修正。 结果，提高了部分提升喷射中的喷射量的精度。

    FUEL INJECTOR
    6.
    发明申请
    FUEL INJECTOR 审中-公开
    喷油器

    公开(公告)号：US20150060576A1

    公开(公告)日：2015-03-05

    申请号：US14468777

    申请日：2014-08-26

    Applicant: DENSO CORPORATION ,  NIPPON SOKEN, INC.

    Inventor： Yoshiharu NONOYAMA ,  Hiroaki NAGATOMO

    IPC: F02M47/02 ,  F02M61/04

    CPC classification number: F02M47/027 ,  F02M51/0685 ,  F02M61/042 ,  F02M61/1886 ,  F02M61/1893 ,  F02M63/0017 ,  F02M63/0029 ,  F02M2200/46

    Abstract: A fuel injector includes a body, a main valve body, a sub valve body, an electric actuator, and a valve-opening force transmission mechanism. The body houses a main passage through which fuel flows to an injection, and a sub passage branched from the main passage and through which the fuel flows to the injection port. The main valve body opens or closes the main passage, and the sub valve body opens or closes the sub passage. The electric actuator applies a valve-opening force to the sub valve body. The valve-opening force transmission mechanism transmits the valve-opening force of the sub valve body to the main valve body to open the main valve body in a condition that a valve-opening stroke of the sub valve body is greater than or equal to a predetermined amount.

    Abstract translation: 燃料喷射器包括主体，主阀体，副阀体，电致动器和阀打开力传递机构。 主体容纳燃料流入注入口的主通道，以及从主通道分支的副通道，燃料通过该通道流入注入口。 主阀体打开或关闭主通道，副阀体打开或关闭副通道。 电致动器向副阀体施加开阀力。 阀开启力传递机构将副阀体的开阀力传递到主阀体，以使主阀体的开阀行程大于或等于a 预定量。

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