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    • 41. 发明授权
    • Power converter device
    • 电源转换器
    • US6021060A
    • 2000-02-01
    • US309303
    • 1999-05-11
    • Takeshi TanakaTatsumi Ishida
    • Takeshi TanakaTatsumi Ishida
    • H02M7/537H02M7/00H02M7/5387H03K17/16
    • H03K17/16H02M7/003
    • Respective terminals and connecting means provided between respective terminals are arranged such that both a current path of a first current extending from an alternating current output terminal 7 (AC) to a negative terminal N of a capacitor 10 via a switching device SW2 and a current path of a second current extending from the alternating current output terminal 7 (AC) to a positive terminal P of the capacitor 10 via a switching device SW1 are provided to construct round current paths whose forward and backward current paths are positioned mutually in a close vicinity respectively. As a result, a snubber circuit can be omitted, and also a power converter device which has reduced size, lower loss, lower cost, and higher reliability can be achieved.
    • 设置在各个端子之间的相应的端子和连接装置被布置成使得从交流输出端子7(AC)延伸到电容器10的负极端子N的第一电流的电流路径经由开关装置SW2和电流路径 提供从交流输出端子7(AC)延伸到电容器10的正端子P的第二电流经由开关器件SW1构成的圆形电流路径,其前后电流路径分别相互位于相邻的位置 。 结果,可以省略缓冲电路,并且还可以实现具有减小的尺寸,更低的损耗,更低的成本和更高的可靠性的功率转换器装置。
    • 42. 发明授权
    • Sintered oil impregnated bearing and its manufacturing method
    • 烧结油浸渍轴承及其制造方法
    • US5282688A
    • 1994-02-01
    • US941808
    • 1992-09-08
    • Noboru KanezakiTakeshi TanakaYoshiaki Hayashi
    • Noboru KanezakiTakeshi TanakaYoshiaki Hayashi
    • B22F5/00B22F3/11B22F5/12F16C33/06F16C33/10F16C33/14F16C33/02B21D53/10
    • F16C33/14B22F3/1109F16C33/103F16C33/104F16C2220/20Y10T29/49668
    • In a sintered oil impregnated bearing constructed of a bearing main body made of a porous type sintered alloy on which is formed a bearing hole for inserting a rotating shaft therethrough, the pores on the axially lying sliding face of the inner peripheral surface of the bearing hole on which the rotating shaft slides are crushed. The sintered oil impregnated bearing is manufactured, at the time of forming powder compact, by forming a through hole defining the bearing hole, by a rod having a roughening section formed thereon, thereby crushing the pores which are in contact with the roughening section, and afterward by sintering the powder compact. Because the pores on the sliding face are crushed, the lubricating oil on the sliding face does not leak, thereby forming a strong oil film having no oil pressure drop on the sliding face, and thus preventing the local contact between the rotating shaft and the sliding face. It is therefor is possible to lower the coefficient of friction of the bearing.
    • 在由多孔型烧结合金构成的轴承主体构成的烧结油浸渍轴承中,形成有用于插入旋转轴的轴承孔,轴承孔内周面的轴向滑动面上的孔 旋转轴滑动在其上被压碎。 烧结油浸渍轴承在形成粉末压块时,通过形成形成有轴承孔的通孔,通过在其上形成有粗糙化部分的棒,从而破碎与粗化部分接触的孔而制造,以及 之后通过烧结粉末成型体。 由于滑动面上的孔被粉碎,所以滑动面上的润滑油不会泄漏,从而在滑动面上形成没有油压降的强油膜,从而防止旋转轴与滑动面之间的局部接触 面对。 因此,可以降低轴承的摩擦系数。
    • 47. 发明授权
    • Impact crushing machine
    • 冲击式破碎机
    • US4871119A
    • 1989-10-03
    • US164181
    • 1988-03-04
    • Hiroyuki MurataTakeshi TanakaChouji HinoHarunaga KiuchiMasahiro Chiji
    • Hiroyuki MurataTakeshi TanakaChouji HinoHarunaga KiuchiMasahiro Chiji
    • B02C13/28
    • B02C13/2804
    • An impact crushing machine provided with easily repairable strikers fixedly arranged along the circumference of a rotor at regular angular intervals so as to extend radially of the rotor. A plurality of seats fixedly mounted respectively with striking chips formed of a durable hard material such as a hard metal are arranged in lines and rows on and detachably fixed to the radially outer end of the striker for individual replacement. When the striking chip is abraded to an unusable extent, the seat mounted with the worn striking chip and a seat fixedly mounted with an unworn striking chip can be interchanged for the further use of the striker, so that the frequency of replacing the heavy striker with a new one is reduced and the operating cost of the impact crushing machine is reduced.
    • 一种冲击式破碎机,其设有容易修复的罢工者,其沿着转子的圆周以规则的角度间隔固定地设置,以便沿转子的径向延伸。 分别固定地安装有耐用的硬质材料(例如硬质金属)形成的冲击碎片的多个座被布置成行和排并且可拆卸地固定到撞针的径向外端以供个别更换。 当打击芯片磨损到不可用的程度时,安装有磨损的打击芯片的座椅和固定安装有未磨损打击芯片的座椅可以互换,以进一步使用撞针,以便更换重锤的频率 减少了新的冲击破碎机的运行成本。