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    • 1. 发明申请
    • Valve position detector
    • 阀位检测器
    • US20010042566A1
    • 2001-11-22
    • US09907061
    • 2001-07-17
    • Fuji Oozx, Inc.
    • Akiyoshi MoriMakoto AdegawaHaruki Kobayashi
    • F16K037/00
    • F01L1/46F01L9/04F01L2820/045G01D5/2412Y10T137/8242
    • A poppet valve moves up and down in a valve operating mechanism in an internal combustion engine. A cylindrical fixed electrode is fixed to a support plate on a cylinder head, and a cylindrical moving electrode is mounted to the lower surface of a valve spring retainer which is mounted to the poppet valve via a cotter. The fixed electrode is connected to a circuit which comprises a variable condenser and a resistance. The valve moves up and down during firing operation of the engine. Thus, variation in electrostatic capacity is detected by the two electrodes, transmitted to a circuit via a lead mounted to the fixed electrode, and converted to a voltage by the circuit, thereby detecting valve position exactly.
    • 提升阀在内燃机的气门操作机构中上下移动。 圆柱形固定电极固定在气缸盖上的支撑板上,并且圆柱形移动电极安装到通过开口安装到提升阀的阀弹簧保持器的下表面。 固定电极连接到包括可变冷凝器和电阻的电路。 发动机点火时阀门上下移动。 因此,通过两个电极检测静电电容的变化,通过安装到固定电极的引线传输到电路,并通过电路转换成电压,从而精确地检测阀位置。