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    • 84. 发明授权
    • Rotational speed and position detector for supercharger
    • 增压器转速和位置检测器
    • US07112958B2
    • 2006-09-26
    • US11010451
    • 2004-12-14
    • Toshitaka YamadaInao ToyodaMakiko Sugiura
    • Toshitaka YamadaInao ToyodaMakiko Sugiura
    • G01B7/30
    • F02B39/16F02B37/10F02B39/10G01P3/487Y02T10/144
    • A motor-assisted turbocharger is composed of a turbine driven by energy of exhaust gas, a compressor rotated by the turbine and a rotary electric machine for assisting rotation of the compressor. The turbine, the compressor and the rotary electric machine are connected to each other by a common rotating shaft. A polygon nut having magnetic member facing fixed magnetic sensor is connected to an axial end of the rotating shaft. A magnetic field formed between the magnetic member and the magnetic sensor changes according to rotation of the rotating shaft. A rotational speed and a rotational position (or angle) of the compressor are detected based on the changes in the magnetic field. Operation of the turbocharger is electronically controlled based on the detected rotational speed and the rotational position.
    • 电动辅助涡轮增压器由废气能量驱动的涡轮机,由涡轮机旋转的压缩机和用于辅助压缩机的旋转的旋转电机组成。 涡轮机,压缩机和旋转电机通过共同的旋转轴彼此连接。 具有面向固定磁传感器的磁性构件的多边形螺母连接到旋转轴的轴向端。 磁性构件和磁性传感器之间形成的磁场根据旋转轴的旋转而变化。 基于磁场的变化来检测压缩机的旋转速度和旋转位置(或角度)。 涡轮增压器的操作基于检测到的转速和旋转位置进行电子控制。
    • 86. 发明申请
    • Ultrasonic element
    • 超声波元件
    • US20060186762A1
    • 2006-08-24
    • US11355114
    • 2006-02-16
    • Makiko SugiuraTomoki Itoh
    • Makiko SugiuraTomoki Itoh
    • H01L41/08
    • H03H9/588B06B1/0692H03H3/02H03H9/02133H03H9/172H03H9/564H03H9/583
    • An ultrasonic element has a membrane formed as a thin walled portion of a substrate, on which a piezoelectric vibrator is formed. The piezoelectric vibrator comprises a piezoelectric thin film and metal electrode films, which are formed into a sandwiched structure. The piezoelectric vibrator resonates with the membrane at a predetermined ultrasonic wave-band frequency. A hollow-out pattern is formed in the piezoelectric thin film to divide the piezoelectric vibrator into multiple portions, wherein the hollow-out pattern is formed in such an area corresponding to stress concentrated area which appears in vibrations of the membrane in diametrical directions thereof. The membrane is made to be easily deformed in response to vibration of the piezoelectric vibrator, so that an ultrasound of a higher sound pressure can be emitted.
    • 超声波元件具有形成为基板的薄壁部分的膜,在其上形成压电振动器。 压电振子包括形成为夹层结构的压电薄膜和金属电极膜。 压电振动器以预定的超声波频带频率与膜谐振。 在压电薄膜中形成中空图案,以将压电振动器分成多个部分,其中,中空图案形成在对应于在其直径方向上的膜的振动中出现的应力集中区域的区域中。 该膜由于压电振子的振动而容易变形,能够发出较高声压的超声波。