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    • 3. 发明专利
    • VOLTAGE/CURRENT CONVERTING CIRCUIT
    • JPS6416113A
    • 1989-01-19
    • JP17101787
    • 1987-07-10
    • HITACHI LTDHITACHI MICROCUMPUTER ENG
    • SEKI KUNIOISHII HIROBUMIYAMADA SHINJI
    • H03H11/40G05F1/10H02P21/22H02P23/00H02P25/026H02P25/10H03H11/46
    • PURPOSE:To simplify the circuit constitution to make it suitable for IC by connecting an inductive load and a current detecting resistance in series between the output side of a control amplifier and the ground and generating voltage drop corresponding to a driving current by the current detecting resistance and negatively feeding back this voltage drop to a second input terminal through a negative feedback circuit consisting of a resistance. CONSTITUTION:A control signal Vctl is a voltage signal and is supplied to the inverted input terminal of a control amplifier 1 through an input resistance R1. A reference voltage Vref is divided to a voltage V1 by voltage dividing resistances R2 and R4 and is supplied to the non-inverted input terminal of the control amplifier 1. An inductive load Rl and a current detecting resistance Rs are provided on the output side of the control amplifier 1, and the load Rl is driven by an output current Io. Voltage drop Vs determined by Io.Rs is generated in one end of a current detecting resistance R1. Its voltage level corresponds to the current quantity of the driving current Io. The voltage Vs is negatively fed back to th non-inverted input terminal through a resistance R3 as the negative feedback circuit. Thus, the inductive load Rl is driven by the output signal resulting from comparison and amplification between the reference voltage and the control signal, namely, the output current.
    • 8. 发明专利
    • Bearing lubricating structure
    • 轴承润滑结构
    • JP2005098410A
    • 2005-04-14
    • JP2003333775
    • 2003-09-25
    • Hitachi LtdToyota Motor Corpトヨタ自動車株式会社株式会社日立製作所
    • KATO ZENICHIROSHIRATANI KAZUHIKOYAMADA SHINJI
    • F16C33/10F16C17/02
    • PROBLEM TO BE SOLVED: To provide a bearing lubricating structure by which friction in a bearing part can be effectively reduced.
      SOLUTION: The bearing lubricating structure is equipped with a rotating shaft 2 and a bearing 3 for supporting the rotating shaft 2. The space between the rotating shaft 2 and the bearing 3 is lubricated with lubricating oil. While a groove 4 formed in a rotational direction of the rotating shaft 2 is formed on a sliding surface of the bearing 3, spherical particulates 5 are added in the lubricating oil. The spherical particulates 5 has crush strength more than a load which acts on the space between the rotating shaft 2 and the bearing 3, and a diameter larger than a depth of the groove 4. The friction on the bearing sliding surface is changed from sliding friction to rolling friction.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种轴承润滑结构,通过该轴承润滑结构可以有效地减小轴承部件中的摩擦。

      解决方案:轴承润滑结构配备有用于支撑旋转轴2的旋转轴2和轴承3.旋转轴2和轴承3之间的空间用润滑油润滑。 在轴承3的滑动面上形成有沿旋转轴2的旋转方向形成的槽4,在润滑油中添加球状微粒5。 球状颗粒5具有比作用在旋转轴2和轴承3之间的空间的负载更大的压溃强度以及比凹槽4的深度更大的直径。轴承滑动表面上的摩擦力从滑动摩擦力 滚动摩擦。 版权所有(C)2005,JPO&NCIPI