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13 条记录 (耗时 0.015 秒)

    Sintered alloy for valve seats, valve seat and manufacturing method thereof
    1.
    发明授权
    Sintered alloy for valve seats, valve seat and manufacturing method thereof 失效
    阀座用烧结合金，阀座及其制造方法

    公开(公告)号：US06951579B2

    公开(公告)日：2005-10-04

    申请号：US10370782

    申请日：2003-02-24

    申请人： Yoshio Koyama

    发明人： Yoshio Koyama

    IPC分类号： B22F3/26 ,  B22F5/00 ,  B22F7/00 ,  C22C33/02 ,  C22C38/00 ,  C22C38/24 ,  C22C38/30 ,  F01L3/02 ,  B22F3/00

    CPC分类号： C22C33/0292 ,  C22C33/0228 ,  C22C33/0242 ,  F01L3/02 ,  F01L2101/00 ,  F01L2103/00

    摘要： A sintered alloy for valve seats is comprised of carbon at 1 to 2 percent by weight, chromium at 3.5 to 4.7 percent by weight, molybdenum at 4.5 to 6.5 percent by weight, tungsten at 5.2 to 7.0 percent by weight, vanadium at 1.5 to 3.2 percent by weight, and the remainder of iron and unavoidable impurities. Enstatite particles at 1 to 3 percent by weight, hard alloy particles (A) with a Vickers hardness of 500 to 900 at 15 to 25 percent by weight, and hard alloy particles (B) with a Vickers hardness of 1000 or more at 5 to 15 percent by weight (A+B=35 percent by weight or less) are dispersed in the matrix of the sintered alloy skeleton distributed with carbide. Copper or copper alloy at 15 to 20 percent by weight is infiltrated into pores of the skeleton.

    摘要翻译： 用于阀座的烧结合金由1至2重量％的碳，3.5至4.7重量％的铬，4.5至6.5重量％的钼，5.2至7.0重量％的钨，1.5至3.2的钒 重量百分比，剩余的铁和不可避免的杂质。 1〜3重量％的硬质合金粒子，维氏硬度为500〜900的硬质合金粒子（A）为15〜25重量％，维氏硬度为5以上的维氏硬度为1000以上的硬质合金粒子（B） 15重量％（A + B = 35重量％以下）分散在与碳化物分布的烧结合金骨架的基体中。 铜或铜合金以15〜20重量％渗透到骨架的孔中。

    Electronic timepiece
    2.
    发明授权
    Electronic timepiece 失效
    电子钟表

    公开(公告)号：US06584040B1

    公开(公告)日：2003-06-24

    申请号：US09583136

    申请日：2000-05-30

    申请人： Kenichi Nakajima ,  Takayuki Satodate ,  Akihiro Matouge ,  Akihiko Inada ,  Mitsuru Ishii ,  Yoshio Koyama ,  Shigeo Suzuki ,  Masayuki Kawata ,  Yuko Sasaki ,  Eriko Takakuwa

    发明人： Kenichi Nakajima ,  Takayuki Satodate ,  Akihiro Matouge ,  Akihiko Inada ,  Mitsuru Ishii ,  Yoshio Koyama ,  Shigeo Suzuki ,  Masayuki Kawata ,  Yuko Sasaki ,  Eriko Takakuwa

    IPC分类号： G04B1924

    CPC分类号： G04C17/0066 ,  G04C3/12

    摘要： To provide an electronic timepiece enabling reliable detection of a state of rotation of an indication wheel such as a date dial. An ultrasonic motor 1130 has an ultrasonic rotor pinion 1134b. A date dial 1120 is disposed on a main plate 1102 in such a way as to rotate relative thereto. The ultrasonic rotor pinion 1134b is meshed with an intermediate date driving gear wheel 1142a. A date driving wheel 1150 is rotatably disposed on the main plate 1102. A date driving gear wheel 1150b is meshed with an intermediate date driving pinion 1142b. A date driving gear portion 1150b is meshed with a dial gear portion 1120a. A contact point spring 1160 is disposed on a spring guiding portion 1150d. The contact point spring 1160 rotates integrally with the date driving wheel 1150 through the rotation of the date driving wheel 1150. The state of rotation of the date driving wheel 1150 can be detected by contact of the contact point spring 1160 with the contact point pattern 1174.

    摘要翻译： 提供能够可靠地检测诸如日期拨盘等指示轮的旋转状态的电子钟表。超声波马达1130具有超声波转子小齿轮1134b。 日历指示盘1120以相对于其旋转的方式设置在主板1102上。 超声波转子小齿轮1134b与中间日期驱动齿轮1142a啮合。 日期驱动轮1150可旋转地设置在主板1102上。日期驱动齿轮1150b与中间日期驱动小齿轮1142b啮合。 日期驱动齿轮部分1150b与表盘齿轮部分1120a啮合。 接触点弹簧1160设置在弹簧引导部分1150d上。 接触点弹簧1160通过日期驱动轮1150的旋转与日期驱动轮1150一体地旋转。日期驱动轮1150的旋转状态可以通过接触点弹簧1160与接触点图案1174的接触来检测 。

    Long-distance spraying device for fire hose
    3.
    发明授权
    Long-distance spraying device for fire hose 失效
    消防水带长距离喷涂装置

    公开(公告)号：US4119152A

    公开(公告)日：1978-10-10

    申请号：US762627

    申请日：1977-01-26

    申请人： Yoshio Koyama

    发明人： Yoshio Koyama

    IPC分类号： A62C31/00 ,  A62C27/00

    CPC分类号： A62C31/00

    摘要： A spraying device for a fire hose is provided with a bulb having a large inlet in one side and a plurality of small outlets in another side, the inlet being connected to the top end of a fire hose by way of a broad pipe, the outlets being connected to a plurality of annular nozzles by way of narrow pipes respectively in a manner that each narrow pipe is in the normal relation to the bulb wall, so as to convert the velocity head of water into pressure head through the bulb and deliver water through the nozzles a long distance in spray form.

    摘要翻译： 一种用于消防水带的喷射装置设置有在一侧具有大入口的灯泡和另一侧的多个小出口，入口通过宽管连接到消防水带的顶端，出口 分别通过窄管连接到多个环形喷嘴，使得每个窄管与灯泡壁处于正常关系，从而将水的速度头部通过灯泡转换成压头，并将水通过 喷嘴形成喷雾长距离。

    VALVE SEAT
    4.
    发明申请
    VALVE SEAT 有权
    阀座

    公开(公告)号：US20150047596A1

    公开(公告)日：2015-02-19

    申请号：US14361182

    申请日：2012-06-14

    申请人： Yoshio Koyama ,  Fusanobu Hanada ,  Shohtaroh Hara

    发明人： Yoshio Koyama ,  Fusanobu Hanada ,  Shohtaroh Hara

    IPC分类号： F01L3/02 ,  F01L3/22 ,  B22F5/10

    CPC分类号： F01L3/02 ,  B22F5/008 ,  B22F5/106 ,  C22C33/025 ,  C22C33/0278 ,  C22C33/0292 ,  F01L3/22 ,  F01L2101/00

    摘要： Provided is a valve seat having excellent strength and wear resistance. In a valve seat using an iron-based sintered alloy, an oxide mains composed of triiron tetroxide is formed by oxidation treatment on the surface and interior of the iron-based sintered alloy, and the average area ratio of the oxide mainly composed of triiron tetroxide in a cross section of the iron-based, sintered alloy in the state prior to installation on a cylinder head is 5 to 20%. Preferably, the iron-based sintered alloy contains hard particles formed from at least one compound of carbides, silicides, nitrides, borides, and intermetallic compounds containing one or more elements selected from groups 4a to 6a of the periodic table, and the average area ratio of the hard particles in the cross section of the iron-based sintered alloy in the state prior to installation on a cylinder head is 5 to 45%.

    摘要翻译： 具有优异的强度和耐磨性的阀座。 在使用铁基烧结合金的阀座中，通过在铁基烧结合金的表面和内部进行氧化处理形成由四氧化三铁组成的氧化物主链，主要由四氧化三铁组成的氧化物的平均面积比 在安装在气缸盖上的状态下的铁基烧结合金的截面为5〜20％。 优选地，铁基烧结合金含有由至少一种碳化物，硅化物，氮化物，硼化物和含有选自元素周期表4a至6a族中的一种或多种元素的金属间化合物形成的硬颗粒，平均面积比 在安装在气缸盖上的状态下的铁基烧结合金的横截面中的硬质颗粒为5〜45％。

    Sheet-wound transformer
    10.
    发明授权
    Sheet-wound transformer 失效
    板卷变压器

    公开(公告)号：US4491817A

    公开(公告)日：1985-01-01

    申请号：US585504

    申请日：1984-03-02

    申请人： Yoshio Koyama

    发明人： Yoshio Koyama

    IPC分类号： H01F27/28 ,  H01F27/10 ,  H01F27/30 ,  H01F27/32 ,  H01F27/08

    CPC分类号： H01F27/322 ,  H01F27/10

    摘要： A sheet-wound transformer comprises a magnetic core, a number of coil windings formed of sheet conductors wound around the magnetic core, and a plurality of cooling panels inserted in the coil windings. A number of ribs are provided in each cooling panel so as to extend in parallel with each other for guiding the flow of a coolant therethrough. Leading and trailing ends of the ribs are located respectively on two lines, the inclination of each line being varied between the central portion and end portions thereof, so that the displacement between two ends of adjacent pair of ribs located on an end portion of the line is made larger than the displacement between two ends of ribs located on the central portion of the line.

    摘要翻译： 片状变压器包括磁芯，由围绕磁芯缠绕的片状导体形成的多个线圈绕组，以及插入线圈绕组中的多个冷却板。 在每个冷却板中设置有多个肋，以便彼此平行地延伸以引导冷却剂的流动。 肋的前端和后端分别位于两条线上，每条线的倾斜在其中心部分和端部之间变化，使得位于线的端部上的相邻一对肋的两端之间的位移 被制成大于位于线的中心部分上的肋的两端之间的位移。