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    • 6. 发明申请
    • Oil Free Screw Compressor
    • 无油螺杆压缩机
    • US20120164017A1
    • 2012-06-28
    • US13192592
    • 2011-07-28
    • Hideki FUJIMOTOHitoshi Nishimura
    • Hideki FUJIMOTOHitoshi Nishimura
    • F01C1/16
    • F04C18/16F04C28/06
    • A multi-stage oil-free screw compressor includes: a suction throttle valve for controlling air intake into the compressor; a piston assembly for operating the suction throttle valve; and a structure for supplying a working pressure to the piston assembly. In order to reduce startup load at the time of startup of the compressor, the suction throttle valve is fully closed while a secondary side of a compressor body is opened to the atmosphere. When a negative pressure and the air pressure, that provide the working pressure, are used for slightly opening the suction throttle valve in order to switch the compressor to a loaded mode after a motor for driving the compressor is accelerated to its top speed, the air pressure is provided by a control pipe line that is defined by the same pipe line that forms a drain pipe line. This permits the control pipe line to be opened to the atmosphere as needed during the startup time. Thus is provided the oil-free screw compressor achieving improved startup reliability.
    • 一种多级无油螺杆压缩机,包括:吸入节流阀,用于控制进入压缩机的进气; 用于操作抽吸节流阀的活塞组件; 以及用于向活塞组件提供工作压力的结构。 为了减少启动压缩机时的起动负荷,在将压缩机主体的二次侧向大气开放的同时,吸入节流阀全闭。 当用于驱动压缩机的电动机加速到其最高速度时,负压和提供工作压力的空气压力用于稍微打开吸入节流阀,以便将压缩机切换到加载模式,空气 通过由形成排水管线的相同管线限定的控制管线来提供压力。 这允许控制管线在启动时间根据需要打开到大气中。 因此,提供了无油螺杆式压缩机,提高了启动可靠性。
    • 9. 发明授权
    • Visual line detection device and camera equipped therewith
    • 视线检测装置及相机配备
    • US5552854A
    • 1996-09-03
    • US341988
    • 1994-11-16
    • Hitoshi Nishimura
    • Hitoshi Nishimura
    • A61B3/113G02B7/28G03B13/02G03B13/36
    • A61B3/113G02B7/287G03B13/02G03B2213/025
    • The visual line detection device according to the present invention is capable of accurately detecting the visual line of the eyeball of an observer, even though it uses light sources which are only a finite distance away from the eyeball, i.e. which are not effectively at infinity. At least two infrared light emitting diodes are provided for illuminating the eyeball, and the position of the center of curvature of the cornea of the eyeball is obtained based upon the positions of a plurality of images generated by the light rays emitted by these diodes being reflected from the cornea. The direction of the visual line of the eyeball is then calculated using this position of the center of curvature of the cornea. A camera according to the present invention is also disclosed which incorporates such a visual line detection device.
    • 根据本发明的视线检测装置即使使用距离眼球只有有限距离的光源,也就是不能有效地处于无穷远状态,能够精确地检测观察者的眼球的视线。 提供至少两个用于照射眼球的红外发光二极管,并且基于由被反射的这些二极管发射的光线产生的多个图像的位置来获得眼球的角膜中心的曲率位置 从角膜。 然后使用角膜中心曲率的位置计算眼球视线的方向。 还公开了根据本发明的相机,其包括这样的视线检测装置。
    • 10. 发明授权
    • Screw compressor
    • 螺杆压缩机
    • US08734126B2
    • 2014-05-27
    • US13494058
    • 2012-06-12
    • Hitoshi NishimuraTomoo SuzukiHiroshi Ohta
    • Hitoshi NishimuraTomoo SuzukiHiroshi Ohta
    • F04B25/00F01C1/30F01C11/00F04C11/00F04C23/00
    • F04C18/16F01C21/007F04C23/00F04C23/001F04C29/005F04C29/04
    • A screw compressor includes a low pressure stage compressor body; a high pressure stage compressor body that further compresses a compressed air compressed by the low pressure stage compressor body; pinion gears for example, respectively, provided on, for example, a male rotor of the low pressure stage compressor body and, for example, a male rotor of the high pressure stage compressor body; a motor; a bull gear for example, provided on a rotating shaft of the motor; and an intermediate shaft supported rotatably and provided with a pinion gear, which meshes with the bull gear, and a bull gear, which meshes with the pinion gears. Thereby, it is possible to make the motor relatively low in rotating speed while inhibiting the gears from being increased in diameter, thus enabling achieving reduction in cost.
    • 螺杆式压缩机包括低压级压缩机体; 高压级压缩机主体,其进一步压缩由所述低压级压缩机主体压缩的压缩空气; 小齿轮分别设置在例如低压级压缩机主体的公转子和例如高压级压缩机主体的公转子上; 电机 大齿轮例如设置在马达的旋转轴上; 以及可旋转地支撑并设有与大齿轮啮合的小齿轮的中间轴和与小齿轮啮合的大齿轮。 由此,可以使电动机的转速相对较低,同时抑制齿轮的直径增大,能够实现成本的降低。