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    • 54. 发明申请
    • OPTICAL ENCODER DEVICE
    • 光学编码器装置
    • US20110036970A1
    • 2011-02-17
    • US12921259
    • 2009-03-06
    • Yoshihiro ShojiYoshi IshizukaShoji Ito
    • Yoshihiro ShojiYoshi IshizukaShoji Ito
    • G01D5/347
    • G01D5/34746
    • An optical encoder device is provided, in which the number of light transmissive slits of a stationary slit plate can be increased as much as possible according to the length of a light receiving surface of a light receiving element to produce an output signal with little distortion. A movable slit plate 3 includes a slit row R1 in which a plurality of light transmissive slits (light transmissive portions) S1 each having a slit width of 180° in terms of electrical angle and a plurality of light non-transmissive slits (light non-transmissive portions) S2 each having a slit width of 180° in terms of electrical angle are alternately formed. A stationary slit plate 4 includes a slit row R2 in which a plurality of light transmissive slits S3 each having a slit width of 180° in terms of electrical angle and a plurality of light non-transmissive slits S4 each having a slit width of (360Xk-180)° in terms of electrical angle are alternately formed. k is a value that satisfies k=1±(⅓n) where n denotes the number of the light transmissive slits S3.
    • 提供一种光学编码器装置,其中可以根据光接收元件的光接收表面的长度尽可能地增加固定狭缝板的透光狭缝的数量,以产生具有很小变形的输出信号。 可动狭缝板3包括狭缝列R1,其中多个透光狭缝(透光部)S1以电角度为单位具有180°的狭缝宽度和多个光不透光狭缝(光非透明部分) 交替地形成各自具有电角度为180°的狭缝宽度的透光部)S2。 固定狭缝板4包括狭缝列R2,其中多个透光狭缝S3分别具有电角度为180°的狭缝宽度和多个狭缝宽度为(360Xk)的光不透光狭缝S4 -180)°电角度交替形成。 k是满足k = 1±(1 / nn)的值,其中n表示透光狭缝S3的数量。
    • 58. 发明授权
    • Centrifugal impeller and pump apparatus
    • 离心式叶轮和泵装置
    • US07153097B2
    • 2006-12-26
    • US10524849
    • 2003-08-27
    • Junya KawabataTakashi EnomotoShoji Ito
    • Junya KawabataTakashi EnomotoShoji Ito
    • F01D1/02
    • F04D29/2255F04D29/2216
    • The centrifugal impeller includes a plurality of blades (3), a plurality of fluid paths (P) for delivering a fluid from an impeller inlet (1) to an impeller outlet (2), and a shroud (4) and a hub (5) for forming the fluid paths (P). Each of the fluid paths (P) is formed between adjacent two of the blades (3). A curved line (L3) of the shroud (4) curves so as to project toward the hub (5) in a region from a blade inlet (A) to a predetermined position (C) of the blade (3), and the curved line (L3) curves so as to project toward the opposite side of the hub (5) in a region from the predetermined position (C) to a blade outlet (B).
    • 离心式叶轮包括多个叶片(3),用于将流体从叶轮入口(1)输送到叶轮出口(2)的多个流体路径(P)以及护罩(4)和轮毂(5) )用于形成流体路径(P)。 每个流体路径(P)形成在相邻的两个叶片(3)之间。 护罩(4)的曲线(L 3)在从叶片入口(A)到叶片(3)的预定位置(C)的区域中弯曲成朝向轮毂(5)突出,并且 曲线(L 3)在从预定位置(C)到叶片出口(B)的区域中弯曲以朝向轮毂(5)的相对侧突出。
    • 60. 发明申请
    • Seal mechanism for fluid machine
    • 流体机械密封机构
    • US20060147328A1
    • 2006-07-06
    • US10561367
    • 2004-11-12
    • Shoji ItoJunya Kawabata
    • Shoji ItoJunya Kawabata
    • F04B17/00
    • F16J15/406F04D29/167F16J15/441
    • A seal mechanism (10) can reduce noise during operation. The seal mechanism (10) is used for a fluid machine (P) to prevent a fluid from leaking out of a high-pressure space (H) into a low-pressure space (L) in the fluid machine (P). The seal mechanism (10) has an annular seal member (12) movable in a radial direction and a housing (11) disposed between a body (23) of the fluid machine (P) and a rotatable member (22) located inside the body (23) of the fluid machine (P) so as to receive the annular seal member (12). The annular seal member (12) has a first surface (12a) on a side of the low-pressure space (L) in the fluid machine (P). The housing (11) has a second surface (11c) facing the first surface (12a) of the annular seal member (12). The seal mechanism (10) has one or more passages (15) formed in the first surface (12a) and/or the second surface (11c).
    • 密封机构(10)可以减少操作过程中的噪音。 密封机构(10)用于流体机械(P),以防止流体从高压空间(H)泄漏到流体机械(P)中的低压空间(L)中。 密封机构(10)具有沿径向移动的环形密封构件(12)和设置在流体机械(P)的主体(23)和位于主体内部的可旋转构件(22)之间的壳体(11) (23),以便容纳环形密封件(12)。 环形密封构件(12)在流体机械(P)中的低压空间(L)的一侧具有第一表面(12a)。 壳体(11)具有面向环形密封构件(12)的第一表面(12a)的第二表面(11c)。 密封机构(10)具有形成在第一表面(12a)和/或第二表面(11c)中的一个或多个通道(15)。