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    • 37. 发明授权
    • Vortex flow meter
    • 涡街流量计
    • US06435036B1
    • 2002-08-20
    • US09904545
    • 2001-07-16
    • Toshisuke SakaiToshihiko MatsudaKazuyuki KasaharaYasumasa FukamiTakashi EharaMotohiko MatsugumaYasuhiko EzakiMasashi Yamaguchi
    • Toshisuke SakaiToshihiko MatsudaKazuyuki KasaharaYasumasa FukamiTakashi EharaMotohiko MatsugumaYasuhiko EzakiMasashi Yamaguchi
    • G01F132
    • G01F1/329G01F1/3245
    • A vortex flow meter includes a measuring tube in which a fluid is carried, a vortex generator provided in the measuring tube for developing a Karman vortex in the fluid, a magnetic field generator generating a magnetic field across the measuring tube downstream of the vortex generator, a pair of electromotive force measuring electrodes provided downstream of the vortex generator for measuring an electromotive force generated by the Karman vortex passing across the magnetic field, a pair of reference electrodes provided at locations upstream and downstream of the electromotive force measuring electrodes, respectively, for measuring a potential at each location, and a detector circuit electrically connected to the electromotive force measuring electrodes and the reference electrodes for calculating the flow of the fluid from the electromotive force and the potential measured by the reference electrodes. The flow is calculated by subtracting the potential difference of the reference potential measuring electrodes from the electromotive force measured by the electromotive force measuring electrodes. This allows the flow meter to have an increased measuring range, meet a wide range of flow conditions, have a simple construction, and have measurement accuracy.
    • 涡流流量计包括其中载有流体的测量管,设置在测量管中用于在流体中显影卡曼涡流的涡流发生器,产生涡流发生器下游的测量管的磁场的磁场发生器, 设置在涡流发生器下游的一对电动势测量电极,用于测量由穿过磁场的卡门涡流产生的电动势,分别设置在电动势测量电极的上游和下游的一对参考电极,用于 测量每个位置处的电位,以及电连接到电动势测量电极和参考电极的检测器电路,用于从电动势计算流体的流量和由参考电极测量的电位。 通过从由电动势测量电极测量的电动势中减去参考电位测量电极的电位差来计算流量。 这允许流量计具有增加的测量范围,满足宽范围的流动条件,具有简单的结构,并且具有测量精度。
    • 39. 发明授权
    • Fuel injection control system for engine
    • 发动机燃油喷射控制系统
    • US6122589A
    • 2000-09-19
    • US289532
    • 1999-04-09
    • Masashi YamaguchiShigeki Hashimoto
    • Masashi YamaguchiShigeki Hashimoto
    • F02D41/04F02D41/14F02D41/24
    • F02D41/047F02D41/1404F02D41/1405F02D41/1458F02D41/2458F02D2041/1431F02D2041/1433F02D2200/0402F02D2200/0411
    • A fuel injection control system of an engine includes: (a) an intake air quantity estimation unit for estimating the quantity of intake air; (b) an intake fuel quantity estimation unit for estimating the quantity of intake fuel; (c) an estimated air-fuel ratio calculation unit for calculating an estimated air-fuel ratio; (d) a target air-fuel ratio setting unit for setting a target air-fuel ratio; (e) a feedback control unit for providing a fuel injection signal to the engine, which fuel injection signal is outputted also to the intake fuel quantity estimation unit as one of the predetermined signals; and (f) an actual air-fuel ratio deviation estimation unit for estimating a deviation of an actual air-fuel ratio or a factor correlated thereto from a predetermined level, which unit is programmed to output a deviation signal based on predetermined signals. In the above, at least one unit selected from the intake air quantity estimation unit, the intake fuel estimation unit, and the target air-fuel ratio setting unit is provided with a learning function which is programmed to modify output from the at least one unit based on the deviation signal used as teacher data to minimize the deviation. The system requires a reduced number of sensors.
    • 发动机的燃料喷射控制系统包括:(a)用于估计进气量的进气量估计单元; (b)进气量估计单元,用于估计进气量; (c)用于计算估计空燃比的估计空燃比计算单元; (d)用于设定目标空燃比的目标空燃比设定单元; (e)反馈控制单元,用于向发动机提供燃料喷射信号,该燃料喷射信号也作为预定信号之一输出到进气燃料量估计单元; 以及(f)实际空燃比偏差估计单元,用于从预定水平估计实际空燃比或其相关系数的偏差,该单元被编程为基于预定信号输出偏差信号。 在上述中,从进气量估计单元,进气燃料推定单元和目标空燃比设定单元中选择的至少一个单元具有学习功能,该学习功能被编程为修改来自至少一个单元的输出 基于用作教师数据的偏差信号来最小化偏差。 该系统需要减少数量的传感器。
    • 40. 发明授权
    • Automatic adjustment method of tracer head
    • 示踪头自动调整方法
    • US4679159A
    • 1987-07-07
    • US734278
    • 1985-05-08
    • Etuo YamazakiMasashi Yamaguchi
    • Etuo YamazakiMasashi Yamaguchi
    • B23Q35/04B23Q35/12B23Q35/123G08C21/00
    • B23Q35/123
    • Manual zero adjustment of a tracer head and adjustment of differential amplifiers for the tracer head are eliminated by a step of storing the outputs of differential amplifier circuits as zero-point offset amounts while maintaining the tracer head in a non-contact state, a step of successively maintaining the tracer head in a first and a second state, and while doing so, storing first and second coordinates of the tracer head in the first and second contact states, together with first and second amounts of displacement compensated for by the zero-point offset amounts, a step of calculating and storing gains of the differential amplifier circuits on the basis of the first and second coordinates and the first and second amounts of displacement compensated for by the zero-point offset amounts, and a step of effecting tracing control through the use of the stored zero-point offset amounts and gains. These steps are carried out under control of a processor.
    • PCT No.PCT / JP84 / 00430 Sec。 371日期1985年5月8日 102(e)日期1985年5月8日PCT提交1984年9月7日PCT公布。 第WO85 / 01235号公报 日期:1985年3月28日。通过将差分放大器电路的输出存储为零点偏移量,同时将示踪器头保持在非线性位置的步骤,消除示踪器头的差分放大器的手动调整和示差器头的差分放大器的调整, 接触状态,将跟踪头连续地保持在第一和第二状态的步骤,并且在这样做的同时,将跟踪头的第一和第二坐标存储在第一和第二接触状态中,以及第一和第二量的位移补偿 通过零点偏移量,基于由零点偏移量补偿的第一和第二坐标以及第一和第二位移量来计算和存储差分放大器电路的增益的步骤,以及 通过使用存储的零点偏移量和增益来实现跟踪控制的步骤。 这些步骤在处理器的控制下进行。