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    • 16. 发明申请
    • CURRENT CONTROL DEVICE FOR ELECTRIC LOAD
    • 电力负载电流控制装置
    • US20110234189A1
    • 2011-09-29
    • US12886072
    • 2010-09-20
    • Hiroaki TANIHARAShuichi MATSUMOTOMasao MOTONOBU
    • Hiroaki TANIHARAShuichi MATSUMOTOMasao MOTONOBU
    • G05F1/10
    • H02M3/156H02J1/04H02M2001/0025
    • Initial calibration is performed only under normal-temperature environment, and accurate current control is performed under practical use temperature environment. A temperature sensor 171 is arranged close to a current detection resistor 126 having predetermined temperature characteristics. Resistance values are estimated in a calibration environment and a practical use environment, an actually measured load current in the calibration environment corresponding to a target load current is stored as control characteristic data, a corrected target current corresponding to the target load current is calculated, and a converted target current based on a change ratio of current detection resistance is controlled as a target current for current control. A resistance change amount by heat generation of the current detection resistor 126 which cannot be entirely detected by the temperature sensor 171 is corrected in control characteristic data, such that linearity of control characteristics is improved.
    • 初始校准仅在常温环境下进行,在实际使用温度环境下进行精确的电流控制。 温度传感器171布置在具有预定温度特性的电流检测电阻126附近。 在校准环境和实际使用环境中估计电阻值,将与目标负载电流相对应的校准环境中的实际测量的负载电流存储为控制特性数据,计算与目标负载电流相对应的校正目标电流,以及 基于电流检测电阻的变化率的转换的目标电流被控制为用于电流控制的目标电流。 在控制特性数据中校正由温度传感器171不能完全检测的电流检测电阻器126的发热的电阻变化量,使得控制特性的线性提高。
    • 18. 发明授权
    • Fuel injection valve
    • 燃油喷射阀
    • US07770818B2
    • 2010-08-10
    • US12010794
    • 2008-01-30
    • Naoki KurimotoTetsuya ToyaoShuichi MatsumotoKouichi Oohata
    • Naoki KurimotoTetsuya ToyaoShuichi MatsumotoKouichi Oohata
    • F02M41/16
    • F02M47/027F02M61/16F02M2547/001
    • A fuel injection valve includes a housing having a wall surface on an opposite side of the nozzle hole. A fuel passage opens in the wall surface, and communicates with a nozzle hole through a nozzle cavity. The nozzle cavity accommodates a valve element. A cylinder is substantially in contact with the wall surface at one end, and slidably accommodating one end of the valve element. The cylinder partitions the nozzle cavity substantially into a fuel accumulator chamber and a pressure control chamber. The fuel accumulator chamber accumulates fuel supplied from the fuel passage. The pressure control chamber accumulates fuel for manipulating the valve element. The cylinder has an outer wall defining a deflecting surface for radially outwardly deflecting fuel flowing from the fuel passage.
    • 燃料喷射阀包括在喷嘴孔的相对侧上具有壁表面的壳体。 燃料通道在壁表面开口,并通过喷嘴腔与喷嘴孔连通。 喷嘴腔容纳阀元件。 气缸在一端基本上与壁表面接触,并且可滑动地容纳阀元件的一端。 气缸将喷嘴腔基本上分成燃料储存室和压力控制室。 燃料蓄积器室积聚从燃料通道供应的燃料。 压力控制室积聚用于操纵阀元件的燃料。 气缸具有限定用于径向向外偏转从燃料通道流出的燃料的偏转表面的外壁。
    • 19. 发明授权
    • Common-rail injector
    • 共轨喷油器
    • US07458525B2
    • 2008-12-02
    • US11175023
    • 2005-07-06
    • Shuichi Matsumoto
    • Shuichi Matsumoto
    • B05B1/08
    • F02M61/166F02M47/027F02M63/0026F02M2200/9007
    • A common rail injector for injecting fuel through a high-pressure channel includes a control chamber, a control valve, and a drive unit. The control chamber applies pressure to a nozzle needle. The control valve switches communication of the control chamber between the high-pressure channel and a low-pressure channel. The drive unit selectively sets a valve element of the control valve on a low-pressure side seat or a high-pressure side seat. The drive unit has an actuator and a slide pin member. The slide pin member slides inside a slide hole to transmit a force to the valve element. A diameter of the low-pressure side seat is less than or equal to a diameter of the high-pressure side seat. The pressure in the control chamber is exerted as an assistance force, so that a high-pressure side seat closing load becomes less than or equal to a low-pressure side seat opening load.
    • 用于通过高压通道喷射燃料的共轨喷射器包括控制室,控制阀和驱动单元。 控制室对喷嘴针施加压力。 控制阀切换控制室在高压通道和低压通道之间的连通。 驱动单元选择性地将控制阀的阀元件设置在低压侧座椅或高压侧座椅上。 驱动单元具有致动器和滑动销构件。 滑动销构件在滑动孔内滑动以向阀元件传递力。 低压侧座的直径小于或等于高压侧座的直径。 控制室中的压力作为辅助力施加,使得高压侧座椅关闭负载变得小于或等于低压侧座椅开启负载。
    • 20. 发明申请
    • Fuel injection valve
    • 燃油喷射阀
    • US20080191062A1
    • 2008-08-14
    • US12010794
    • 2008-01-30
    • Naoki KurimotoTetsuya ToyaoShuichi MatsumotoKouichi Oohata
    • Naoki KurimotoTetsuya ToyaoShuichi MatsumotoKouichi Oohata
    • F02M61/16
    • F02M47/027F02M61/16F02M2547/001
    • A fuel injection valve includes a housing having a wall surface on an opposite side of the nozzle hole. A fuel passage opens in the wall surface, and communicates with a nozzle hole through a nozzle cavity. The nozzle cavity accommodates a valve element. A cylinder is substantially in contact with the wall surface at one end, and slidably accommodating one end of the valve element. The cylinder partitions the nozzle cavity substantially into a fuel accumulator chamber and a pressure control chamber. The fuel accumulator chamber accumulates fuel supplied from the fuel passage. The pressure control chamber accumulates fuel for manipulating the valve element. The cylinder has an outer wall defining a deflecting surface for radially outwardly deflecting fuel flowing from the fuel passage.
    • 燃料喷射阀包括在喷嘴孔的相对侧上具有壁表面的壳体。 燃料通道在壁表面开口,并通过喷嘴腔与喷嘴孔连通。 喷嘴腔容纳阀元件。 气缸在一端基本上与壁表面接触,并且可滑动地容纳阀元件的一端。 气缸将喷嘴腔基本上分成燃料储存室和压力控制室。 燃料蓄积器室积聚从燃料通道供应的燃料。 压力控制室积聚用于操纵阀元件的燃料。 气缸具有限定用于径向向外偏转从燃料通道流出的燃料的偏转表面的外壁。