Spray hole profile
    21.
    发明专利
    Spray hole profile 审中-公开
    喷泉孔型材

    公开(公告)号:JP2009008087A

    公开(公告)日:2009-01-15

    申请号:JP2008167668

    申请日:2008-06-26

    CPC classification number: F02M61/1806 Y10T29/49432

    Abstract: PROBLEM TO BE SOLVED: To provide a fuel injector for an internal combustion engine comprising a nozzle body 3 having at least one spray hole 1. SOLUTION: The at least one spray hole 1 has a hole entry 9 on the inside of the nozzle body 3 and a hole exit 11 on the outside of the nozzle body 3. The spray hole 1 is provided with a hole entry section 15 which, starting from the hole entry 9, has a flow area which decreases from a relatively larger flow area at the hole entry 9 to a relatively small flow area at an intersection part between an end of the hole entry section 15 and a start point of a hole exit section 17. The hole exit section 17, starting from the intersection part with the hole entry section 15, has a flow area which increases from a relatively small flow area at the intersection part with the hole entry section 15 to a relatively larger flow area at the hole exit 11. COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 解决方案:提供一种用于内燃机的燃料喷射器,其包括具有至少一个喷射孔1的喷嘴主体3.解决方案:至少一个喷射孔1在其上具有孔入口9 喷嘴主体3的内部和喷嘴体3的外侧的孔出口11.喷孔1设置有孔入口部15,该孔入口部15从孔入口9开始具有从相对 孔入口9处的较大流动面积在孔入口部15的端部与孔出口部17的起点之间的交叉部分处的相对小的流动面积。孔出口部17从与 孔入口部15具有从与孔入口部15的交叉部相对较小的流动面积向孔出口11的相对较大的流动面积增大的流动面积。(C)2009, JPO和INPIT

    Detection of trouble in injection device
    23.
    发明专利
    Detection of trouble in injection device 审中-公开
    检测注射装置中的故障

    公开(公告)号:JP2009002341A

    公开(公告)日:2009-01-08

    申请号:JP2008157568

    申请日:2008-06-17

    Abstract: PROBLEM TO BE SOLVED: To provide a trouble detection method for detecting a short circuit trouble in an injection device when an engine is started. SOLUTION: The injection device is provided with one or a plurality of piezoelectric fuel injectors 12a and 12b, and the injectors are connected in a drive circuit 20. In one embodiment, a potential VB at a bias point PB in the drive circuit is determined to be compared with a predicted voltage VPB. In a case where the potential at the bias point is not within a prescribed tolerable voltage VTOL of the predicted voltage, a short circuit trouble signal is generated. In another embodiment, a first charge pulse is applied to the injector to charge the injector. After the first charge pulse, a discharge switch Q2 is closed to provide a discharge current way 38 within a delay period Δt. A defective injector makes a discharge through the discharge current way within the delay period Δt. After the delay period, a second charge pulse is applied to the injector. In a case where current IS is detected during the second charge pulse, and when the current in the second charge pulse is larger than a prescribed threshold current, a short circuit warning signal is generated. COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种在发动机启动时检测喷射装置中的短路故障的故障检测方法。 解决方案:注射装置设置有一个或多个压电燃料喷射器12a和12b,并且喷射器连接在驱动电路20中。在一个实施例中,驱动电路中偏置点PB处的电位VB 被确定为与预测电压VPB进行比较。 在偏置点的电位不在预测电压的规定的容许电压VTOL的情况下,产生短路故障信号。 在另一个实施例中,向喷射器施加第一充电脉冲以对喷射器充电。 在第一充电脉冲之后,关闭放电开关Q2以在延迟时间Δt内提供放电电流方式38。 有缺陷的喷射器在延迟时间Δt内通过放电电流进行放电。 在延迟时间之后,向喷射器施加第二充电脉冲。 在第二充电脉冲期间检测到电流IS的情况下,并且当第二充电脉冲中的电流大于规定的阈值电流时,产生短路警告信号。 版权所有(C)2009,JPO&INPIT

    Universal serial bus standard interface connections
    24.
    发明专利
    Universal serial bus standard interface connections 审中-公开
    通用串行总线标准接口连接

    公开(公告)号:JP2008311228A

    公开(公告)日:2008-12-25

    申请号:JP2008148854

    申请日:2008-06-06

    Abstract: PROBLEM TO BE SOLVED: To provide a consumer device interface assembly utilizing a male over-mold adapter that is operable to engage a conventional USB female shroud.
    SOLUTION: A locking clip is associated with the male over-mold so as to provide locking engagement between the over-mold and the female adapter. The over-mold is universal thus allowing a host of consumer device interfaces to be used with the assembly.
    COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种消费者设备接口组件,其利用可操作以接合常规USB母护罩的阳型过模适配器。 解决方案:锁定夹与阳型外模相关联,以便在外模和阴适配器之间提供锁定接合。 整个模具是通用的,从而允许大量的消费者设备接口与组件一起使用。 版权所有(C)2009,JPO&INPIT

    Method of operating compression ignition engine
    25.
    发明专利
    Method of operating compression ignition engine 有权
    压缩点火发动机的运行方法

    公开(公告)号:JP2008303875A

    公开(公告)日:2008-12-18

    申请号:JP2008146528

    申请日:2008-06-04

    Abstract: PROBLEM TO BE SOLVED: To provide a method of operating a compression ignition engine capable of controlling an air-fuel ratio very well without impairing the operability or the responsiveness of the engine.
    SOLUTION: This method of operating a compression ignition engine comprises the steps of determining an instantaneous driver torque demand and selectively operating the engine in a first mode or a second mode dependent on the rate of change of driver torque demand. The first mode comprises an air lead mode whereby the intake air flow rate is controlled to achieve the instantaneous driver torque demand and an amount of fuel injected is controlled to obtain a target air/fuel ratio based upon the intake air flow rate. The second mode comprises a fuel lead mode wherein the amount of fuel injected is controlled to achieve the instantaneous torque demand.
    COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种操作能够非常好地控制空燃比的压燃式发动机的方法,而不会损害发动机的可操作性或响应性。 解决方案:这种操作压缩点火式发动机的方法包括以下步骤:确定瞬时驾驶员扭矩需求,并根据驾驶员扭矩需求的变化率,以第一模式或第二模式选择性地操作发动机。 第一模式包括空气引导模式,由此控制进气流量以实现瞬时驾驶员扭矩需求,并且控制喷射的燃料量以基于进气流量获得目标空气/燃料比。 第二模式包括燃料引导模式,其中控制喷射的燃料量以实现瞬时扭矩需求。 版权所有(C)2009,JPO&INPIT

    Method for reducing stress gradient within piezoelectric actuator
    26.
    发明专利
    Method for reducing stress gradient within piezoelectric actuator 有权
    用于减小压电致动器中的应力梯度的方法

    公开(公告)号:JP2008228565A

    公开(公告)日:2008-09-25

    申请号:JP2008063465

    申请日:2008-03-13

    CPC classification number: H01L41/083 H01L41/1876 H01L41/257

    Abstract: PROBLEM TO BE SOLVED: To apply a longitudinal tensile stress to an actuator which is sufficient to mechanically align dipoles, thus generating a remanent magnetostriction which is uniform throughout the actuator, in order to solve the problem that piezoelectric actuators of the type comprising a stack of layers of ferroelectric material and intervening electrodes which extend partially across the adjacent ferroelectric layers cause differential remanent magnetostrictions, when electric fields are applied across the layers.
    SOLUTION: In a method for reducing stress gradients within a piezoelectric actuator 5, the actuator 5 is preferably heated while the tensile stress is applied, so as to increase the difference between the tensile strength of the material and the applied tensile stress. An alternative arrangement involves a step of subjecting the actuator to a multidirectional stress and a step of reducing the stress along the longitudinal direction. All the steps are performed on completed actuators. Under suitable temperature and load conditions, no margin fractures occur due to the tensile stress, and discontinuity is reduced in shape and electrode tip.
    COPYRIGHT: (C)2008,JPO&INPIT

    Abstract translation: 要解决的问题:为了对致动器施加纵向拉伸应力,该致动器足以机械对准偶极子,从而产生在整个致动器中均匀的残余磁致伸缩,以解决包括以下类型的压电致动器的问题: 当跨越层施加电场时,堆叠的铁电材料层和部分横跨相邻铁电层的中间电极引起差异的剩余磁致伸缩。 解决方案:在用于减小压电致动器5内的应力梯度的方法中,致动器5优选在施加拉伸应力的同时加热,以增加材料的拉伸强度和施加的拉伸应力之间的差异。 另一种方案包括对致动器进行多向应力的步骤和沿纵向方向减小应力的步骤。 所有步骤都是在完成的执行器上执行的。 在适当的温度和负载条件下,由于拉伸应力,不会发生边缘断裂,并且形状和电极尖端的不连续性减小。 版权所有(C)2008,JPO&INPIT

    Device for detecting and identifying failure of component in fuel cell
    27.
    发明专利
    Device for detecting and identifying failure of component in fuel cell 有权
    用于检测和识别燃料电池组件故障的装置

    公开(公告)号:JP2008031989A

    公开(公告)日:2008-02-14

    申请号:JP2007159703

    申请日:2007-06-18

    Abstract: PROBLEM TO BE SOLVED: To detect the abnormality occurring in a unit pump of a rail fuel supply system in an internal combustion engine.
    SOLUTION: A detector 80 detects the operating state of one or more fuel pumps in the fuel system. The fuel system comprises an accumulator volume 4 for storing a high pressure fuel, one or more injectors configured to fluid-communicate with the accumulator volume, and one or more the high pressure fuel pump 6 disposed to fluid-communicate with the accumulator volume to supply the hight pressure fuel. The operation of the one or more fuel pump is controlled by a filling puls signal from a control means 22. The detector comprises an input part for receiving the data to indicate at least one present system parameter, and a processing means configured to compare at least one present parameter for identifying the operating state of one or more fuel pump 6 with one or more predetermined system parameters.
    COPYRIGHT: (C)2008,JPO&INPIT

    Abstract translation: 要解决的问题:检测在内燃机中的轨道式燃料供给系统的单位泵中发生的异常。 检测器80检测燃料系统中的一个或多个燃料泵的运行状态。 燃料系统包括用于存储高压燃料的蓄能器容积4,构造成与蓄能器容积流体连通的一个或多个喷射器,以及一个或多个设置成与蓄能器容积流体连通以供应的高压燃料泵6 高压燃油。 一个或多个燃料泵的操作由来自控制装置22的填充脉动信号控制。检测器包括用于接收数据以指示至少一个当前系统参数的输入部分,以及被配置为至少比较 一个当前参数,用于利用一个或多个预定系统参数来识别一个或多个燃料泵6的操作状态。 版权所有(C)2008,JPO&INPIT

    Vane cam phasor having bias spring system for assisting locking of intermediate position pin
    28.
    发明专利
    Vane cam phasor having bias spring system for assisting locking of intermediate position pin 审中-公开
    具有用于辅助中间位置锁定的偏置弹簧系统的VANE CAM相位

    公开(公告)号:JP2007327490A

    公开(公告)日:2007-12-20

    申请号:JP2007143075

    申请日:2007-05-30

    CPC classification number: F01L1/3442 F01L2001/34483

    Abstract: PROBLEM TO BE SOLVED: To provide a vane camshaft phasor for changing the timing of the combustion valve of an internal combustion engine.
    SOLUTION: This phasor comprises a seat formed on a sprocket at the proper intermediate rotating position of a rotor and a locking pin disposed in slidable contact with the vane of the rotor, engaged with the seat, and locking the rotor to a stator at the intermediate position. A bias spring system disposed on a cover plate biases the rotor from any of the delayed lock positions to the intermediate lock position. However, while the rotor is operated for valve timing advancement, it is not engaged with the rotor from the intermediate lock position.
    COPYRIGHT: (C)2008,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种用于改变内燃机的燃烧阀的定时的叶片凸轮轴相量。 解决方案:该相体包括形成在转子适当的中间旋转位置的链轮上的座和设置成与转子的叶片滑动接触的锁定销,与座接合,并将转子锁定到定子 在中间位置。 设置在盖板上的偏置弹簧系统将转子从任何延迟锁定位置偏压到中间锁定位置。 然而,当转子用于气门正时提前时,转子不会从中间锁定位置与转子接合。 版权所有(C)2008,JPO&INPIT

    Controller for fuel injector and method for operating fuel injector
    29.
    发明专利
    Controller for fuel injector and method for operating fuel injector 有权
    燃油喷射器控制器和燃油喷射器操作方法

    公开(公告)号:JP2007315393A

    公开(公告)日:2007-12-06

    申请号:JP2007136349

    申请日:2007-05-23

    CPC classification number: F02D41/2096 F02D41/403 F02D2250/04

    Abstract: PROBLEM TO BE SOLVED: To provide a controller for controlling operation of a fuel injector having a piezoelectric actuator which is operable by the application of a voltage drive profile across the actuator.
    SOLUTION: The controller comprises inputs for receiving data 24 relating to engine parameters and a processor 21 for determining a voltage drive profile 25 for controlling the actuator 4 in dependence upon the engine parameters. The voltage drive profile is arranged to comprise an activating voltage component to initiate an injection event and a deactivating voltage component to terminate the injection event, the activating and deactivating voltage components being separated by a time interval T
    ON . The controller further comprises outputs for outputting the voltage drive profile as determined by the processor to the actuator, wherein the processor is arranged to set the time interval T
    ON greater than or equal to a predetermined pressure wave time period T
    P of a pressure wave cycle within the injector.
    COPYRIGHT: (C)2008,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种用于控制具有压电致动器的燃料喷射器的操作的控制器,该压电致动器可以通过在致动器上施加电压驱动轮廓来操作。 解决方案:控制器包括用于接收与发动机参数相关的数据24的输入和用于根据发动机参数确定用于控制致动器4的电压驱动轮廓25的处理器21。 电压驱动曲线被布置成包括启动电压分量以启动注入事件和去激活电压分量以终止注入事件,激活和去激活电压分量被间隔时间间隔T ON 。 控制器还包括用于将由处理器确定的电压驱动曲线输出到致动器的输出,其中处理器被布置成设定大于或等于预定压力波周期的时间间隔T SB ON ON / 注射器内的压力波周期的T P 。 版权所有(C)2008,JPO&INPIT

    Method for controlling piezoelectric actuator
    30.
    发明专利
    Method for controlling piezoelectric actuator 有权
    控制压电致动器的方法

    公开(公告)号:JP2007315388A

    公开(公告)日:2007-12-06

    申请号:JP2007136092

    申请日:2007-05-23

    Abstract: PROBLEM TO BE SOLVED: To improve control of a piezoelectric actuator over the whole lifetime thereof and improve control of stack displacement in relation to accuracy since change of stroke/charge among parts is normally smaller than change of stroke/voltage among parts even if an operation condition such as change among parts changes without receiving influence of capacitance change due to lifetime of the stack. SOLUTION: A method for controlling displacement of a stack 2 of the piezoelectric actuator 1 for use in a fuel injector comprises a step determining a desirable amount of charge ΔQ to be added or removed from the stack 2. The method further comprises a step selecting a drive current level PO, SO and a drive time t open , t close in accordance with the desired amount of charge and an operating parameter, and a step driving the drive current through the stack 2 for the drive time t open , t close in order to add or remove the desired amount of charge. COPYRIGHT: (C)2008,JPO&INPIT

    Abstract translation: 要解决的问题:为了改善整个寿命期间压电致动器的控制,并且改善了与精度相关的堆叠位移的控制,因为部件之间的行程/电荷的变化通常小于部件之间的行程/电压的变化,甚至 如果诸如部件之间的变化的操作条件改变而不受到堆叠的寿命的电容变化的影响。 解决方案:用于控制用于燃料喷射器的压电致动器1的堆叠2的位移的方法包括确定要从堆叠2添加或移除的期望的电荷量ΔQ的步骤。该方法还包括: 根据期望的充电量和操作参数选择驱动电流水平PO,SO和驱动时间t打开,t​​关闭,以及驱动驱动电流通过堆叠2驱动时间t open的步骤,t 关闭以添加或删除所需的电量。 版权所有(C)2008,JPO&INPIT

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