High voltage generating device
    2.
    发明授权
    High voltage generating device 失效
    高压发生装置

    公开(公告)号:US4767967A

    公开(公告)日:1988-08-30

    申请号:US741224

    申请日:1985-06-04

    摘要: A high voltage generating device with a PZT element is disclosed. The device includes an energization control unit for generating an energization voltage, a PZT element unit for performing voltage conversion in response to an output from the energization control unit, and a load unit for receiving an output from the PZT element unit. The PZT element unit is provided with a resonating member and an electrostrictive element, and a period of an output voltage from the energization control unit is controlled so that a primary voltage from the PZT element unit becomes maximum at a timing when the output voltage from the energization control unit is not supplied.

    摘要翻译: 公开了一种具有PZT元件的高压发生器件。 该装置包括用于产生通电电压的通电控制单元,用于响应于来自通电控制单元的输出而进行电压转换的PZT单元单元,以及用于接收PZT单元单元的输出的负载单元。 PZT元件单元设置有谐振元件和电致伸缩元件,并且控制来自通电控制单元的输出电压的周期,使得来自PZT元件单元的初级电压在来自 不提供通电控制单元。

    Valve drive device
    4.
    发明授权
    Valve drive device 失效
    阀门驱动装置

    公开(公告)号:US5363816A

    公开(公告)日:1994-11-15

    申请号:US184060

    申请日:1994-01-21

    IPC分类号: F01L9/02 F02B3/06

    摘要: A hydraulic valve drive device for intake/exhaust valves of an internal combustion engine using an oil pump similar to a distributor type injection pump. A plunger rotates and engages in reciprocating motion to pressurize hydraulic fluid taken into a pressure chamber and opens to discharge the same into a hydraulic cylinder of a specific intake/exhaust valve in register with the passage. The intake/exhaust valve maintains its valve lift to continue remaining open when the supply of the hydraulic fluid is stopped, but closes when the plunger rotates so that the passage is communicated with a relief channel and the relief valve opens.

    摘要翻译: 一种使用类似于分配器型注射泵的油泵的内燃机的进气/排气阀的液压阀驱动装置。 柱塞旋转并接合往复运动,以将进入压力室的液压流体加压并打开以将其排放到与通道对准的特定进气/排气阀的液压缸中。 当液压油的供给停止时,进气/排气阀保持其气门升程继续保持打开,而当柱塞旋转时关闭,使得通道与释放通道连通并且安全阀打开。

    Oxygen concentration detecting apparatus
    6.
    发明授权
    Oxygen concentration detecting apparatus 失效
    氧浓度检测装置

    公开(公告)号:US5338431A

    公开(公告)日:1994-08-16

    申请号:US978076

    申请日:1992-11-18

    摘要: An oxygen concentration detecting apparatus having, a pumping cell and a sensing cell, electrodes formed on both surfaces of each of the pumping and sensing cells, a related support structure forming a closed space by being connected with the pumping and sensing cells, an opening communicating between the closed space and the surrounding environment, an electromotive force detector for detecting an electromotive force generated between the electrodes of the sensing cell, a voltage source for applying a voltage between the electrodes of the pumping cell, a current detector for detecting as a signal representing the oxygen concentration a current flowing in the pumping cell when a voltage is applied between the electrodes of the pumping cell, and a controller for controlling the voltage so that the electromotive force is constant at a specified value at which value the above-mentioned current is 70% or less of the limiting current.

    摘要翻译: 具有泵浦单元和感测单元的氧浓度检测装置,形成在每个泵浦和感测单元的两个表面上的电极,通过与泵送和感测单元连接而形成闭合空间的相关支撑结构, 在闭合空间与周围环境之间的电动势检测器,用于检测在感测单元的电极之间产生的电动势,用于在泵浦单元的电极之间施加电压的电压源,用于检测作为信号的电流检测器 表示当在泵浦单元的电极之间施加电压时在泵浦单元中流动的电流的氧浓度,以及用于控制电压的控制器,使得电动势恒定在上述电流值的规定值 为极限电流的70%以下。

    Structure of spark plug ensuring stability in location of production of sparks
    7.
    发明申请
    Structure of spark plug ensuring stability in location of production of sparks 有权
    火花塞结构,确保火花生产位置的稳定

    公开(公告)号:US20050029915A1

    公开(公告)日:2005-02-10

    申请号:US10910585

    申请日:2004-08-04

    CPC分类号: H01T13/39

    摘要: A small-sized spark plug is provided which ensures the stability in the location of production of sparks between center and ground electrodes. The center and ground electrodes have joined thereon cylindrical members such as noble metal chips which are opposed to each other through a spark gap. The cylindrical members are so oriented to have longitudinal center lines extend parallel in misalignment with each other. This orientation results in shorter and longer intervals between end surfaces of the cylindrical members. The sparks are concentrated between portions of edges of cylindrical members located apart the shorter interval, thereby resulting in the stability in the location of production of the sparks.

    摘要翻译: 提供了一种小型火花塞,确保了在中心和接地电极之间产生火花的位置的稳定性。 中心接地电极通过火花隙彼此相对的圆柱形构件,例如贵金属芯片。 圆柱形构件被定向成具有彼此不对准的纵向中心线平行延伸。 这种方向导致圆柱形构件的端面之间的更短和更长的间隔。 火花集中在位于较短间隔之间的圆筒形部件的边缘部分之间,从而导致火花产生位置的稳定性。

    Ion current detecting device for internal combustion engine

    公开(公告)号:US06653840B2

    公开(公告)日:2003-11-25

    申请号:US10115022

    申请日:2002-04-04

    IPC分类号: F02P1700

    CPC分类号: F02P17/12 F02P2017/125

    摘要: In an engine ignition unit, a transistor and a current detecting resistor are connected to primary and secondary windings of an ignition coil, respectively. The current detecting resistor is used for detecting a current flowing between the opposing electrodes of spark plug. At an ignition by the spark plug, high-frequency square wave signals are generated by an oscillator after an ignition signal is cut off. The square wave signals turn on and off the transistor. By this operation, a battery voltage is intermittently applied to the primary winding and an ion current is measured. A frequency of the square wave signals is set close to a resonant frequency of an ion current path including the spark plug, the secondary winding of the ignition coil and the current detecting resistor.

    Spark plug and ignition apparatus
    9.
    发明授权
    Spark plug and ignition apparatus 有权
    火花塞和点火装置

    公开(公告)号:US06653767B2

    公开(公告)日:2003-11-25

    申请号:US09960514

    申请日:2001-09-24

    IPC分类号: H01T1320

    CPC分类号: H01T13/39 H01T13/20

    摘要: At least one of a center electrode tip and a ground electrode tip is made of an iridium alloy. A discharge gap, formed between the center electrode tip and the ground electrode tip, is less than 1.1 mm. And, cross sections of the center electrode tip and the ground electrode tip are equal to or smaller than 0.95 mm2 in a spherical region where a distance from a midpoint of the discharge gap is within 0.6 mm.

    摘要翻译: 中心电极尖端和接地电极尖端中的至少一个由铱合金制成。 形成在中心电极尖端和接地电极尖端之间的放电间隙小于1.1mm。 并且,在距离放电间隙的中点的距离在0.6mm以内的球面区域中,中心电极端部和接地电极端部的截面为0.95mm 2以下。

    SPARK PLUG AND CYLINDER HEAD ASSEMBLY ENSURING RELIABLE IGNITION OF AIR/FUEL MIXTURE
    10.
    发明申请
    SPARK PLUG AND CYLINDER HEAD ASSEMBLY ENSURING RELIABLE IGNITION OF AIR/FUEL MIXTURE 有权
    火花塞和气缸组件确保空气/燃料混合物的可靠点火

    公开(公告)号:US20080314354A1

    公开(公告)日:2008-12-25

    申请号:US12143161

    申请日:2008-06-20

    IPC分类号: F02F1/24

    CPC分类号: H01T13/08 H01T13/20

    摘要: A spark plug and cylinder head assembly includes a spark plug and a cylinder head of an engine. The cylinder head has a bore and a surface which faces a combustion chamber of the engine and on which the bore opens. The spark plug is fit in the bore of the cylinder head, and includes a metal shell, an insulator retained in the metal shell, a center electrode secured in the insulator, and a ground electrode facing the center electrode through a spark gap. An end surface of the metal shell has an outer edge and an inner edge, and tapers from the outer edge to the inner edge in a direction toward the inside of an air pocket formed between the metal shell and the insulator. The outer edge of the end surface of the metal shell protrudes from the surface of the cylinder head into the combustion chamber.

    摘要翻译: 火花塞和气缸盖组件包括火花塞和发动机的气缸盖。 气缸盖具有孔和与发动机的燃烧室相对的表面,并且孔开放。 火花塞安装在气缸盖的孔中,并且包括金属壳,保持在金属壳中的绝缘体,固定在绝缘体中的中心电极和通过火花隙面对中心电极的接地电极。 金属壳的端面具有外边缘和内边缘,并且在形成于金属壳和绝缘体之间的气穴的内侧的方向上从外边缘到内边缘逐渐变细。 金属壳的端面的外缘从气缸盖的表面突出到燃烧室中。