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    • 8. 发明授权
    • Fuel-supply control system
    • 燃油供应控制系统
    • US4407251A
    • 1983-10-04
    • US290075
    • 1981-08-04
    • Keiichi Nakanishi
    • Keiichi Nakanishi
    • F02D41/34F02B1/04F02D41/00F02D41/32F02D41/36F02B33/00F02B3/00
    • F02D41/32F02D41/0087F02B1/04
    • A fuel supply control system for an engine includes a controller and a fuel supply line. In one embodiment, at least two parallel connected control valves are arranged in the line and are changed between open and closed states when energized by a drive signal. A sensor is provided for detecting an engine operating condition. A generator is provided for producing a random designation signal indicating any one of the different control valves. The controller produces a pulse train as the drive signal for the control valves in response to the output signal of the sensor so that the duty cycle of the pulse train varies with the engine operating condition. The controller distributes each pulse of the drive signal to any one of the control valves designated by the random designation signal of the generator to open the designated control valve so that any one of the control valves is opened in a random sequence. In a second embodiment, the number of the control valves may be one. In this case, each pulse-width of the drive signal changes at random within a relatively small range in response to the random signal from the generator.
    • 用于发动机的燃料供应控制系统包括控制器和燃料供应管线。 在一个实施例中,至少两个平行连接的控制阀布置在管线中,并且在由驱动信号激励时在打开和关闭状态之间改变。 提供用于检测发动机工作状态的传感器。 提供发生器用于产生指示不同控制阀中的任何一个的随机指定信号。 控制器响应于传感器的输出信号产生脉冲串作为控制阀的驱动信号,使得脉冲串的占空比随发动机工作状态而变化。 控制器将驱动信号的每个脉冲分配给由发电机的随机指定信号指定的任何一个控制阀,以打开指定的控制阀,使任何一个控制阀以随机顺序打开。 在第二实施例中,控制阀的数量可以是一个。 在这种情况下,响应于来自发电机的随机信号,驱动信号的每个脉冲宽度随机地在相对小的范围内变化。
    • 9. 发明授权
    • Bearing structure for a rotary disc
    • 旋转盘的轴承结构
    • US4101181A
    • 1978-07-18
    • US756602
    • 1977-01-04
    • Keiichi Nakanishi
    • Keiichi Nakanishi
    • F16C25/02F16C33/14F16C33/24F28D19/04F16C13/02
    • F16C33/24F16C25/02F16C33/14F28D19/048
    • An improved bearing structure has a plurality of spaced first ring members coaxially mounted on a stationary shaft, each of the first ring members having at its each radial side first means defining a first conical wall surface, a plurality of spaced second ring members coaxially mounted on the peripheral surface of a central bore of the rotary disc while alternatively projecting, in a meshing manner, into spaces defined between the first ring members, each of the second ring members having at its each radial side second means defining a second conical wall surface which is contiguously engaged with the first conical wall surface and holding means for providing tight connection between the first and second ring members and the stationary shaft.
    • 改进的轴承结构具有同轴地安装在固定轴上的多个间隔开的第一环构件,每个第一环构件在其每个径向侧具有限定第一锥形壁表面的第一构件,多个间隔开的第二环构件同轴地安装在 旋转盘的中心孔的圆周表面,同时以啮合的方式交替地突出到限定在第一环构件之间的空间中,每个第二环构件在其每个径向侧具有限定第二锥形壁表面的第二构件 与第一锥形壁表面和保持装置连续接合,用于在第一和第二环构件和固定轴之间提供紧密连接。
    • 10. 发明授权
    • Apparatus for detecting toner in image forming apparatus
    • 用于检测图像形成装置中的调色剂的装置
    • US5317369A
    • 1994-05-31
    • US946959
    • 1992-09-17
    • Keiichi Nakanishi
    • Keiichi Nakanishi
    • G03G15/08
    • G03G15/0856G03G15/086G03G15/0889
    • An apparatus for detecting an amount of toner in a toner casing. A sensor detects the magnetic flux density of the toner in the toner casing and generates detection signals. A sampling device samples the detection signals. A selecting device selects a signal having the lowest value among the sampled signals. A device for setting up a threshold value determines the threshold value using the selected signal. A counting device counts the number of sampled signals lower than the threshold value. If the counted number is larger than a predetermined value, then an indicator lamp indicates that toner is lacking.
    • 一种用于检测调色剂外壳中的调色剂量的装置。 传感器检测调色剂壳体中调色剂的磁通密度并产生检测信号。 采样设备对检测信号进行采样。 选择装置选择采样信号中具有最低值的信号。 用于建立阈值的装置使用所选择的信号确定阈值。 计数装置对低于阈值的采样信号的数量进行计数。 如果计数的数量大于预定值,则指示灯指示不存在调色剂。