Stator vane arrangement for rotating machinery
    1.
    发明授权
    Stator vane arrangement for rotating machinery 失效
    旋转机械定子叶片装置

    公开(公告)号:US06719528B2

    公开(公告)日:2004-04-13

    申请号:US10260422

    申请日:2002-10-01

    IPC分类号: F01D904

    摘要: In a stator vane arrangement including a plurality of stator vanes axially opposing a plurality of rotor vanes in rotating machinery, each stator vane is tilted with respect to a radial line so that the load acting on the hub end of each stator vane is reduced and a secondary flow is minimized. This allows the aspect ratio of each stator vane to be reduced, and the number of stator vanes to be reduced without impairing the efficiency of the rotating machinery. This in turn allows the frequency of the oscillator force produced by the stator vane in relation with the motion of the rotor vanes to be lowered so that a resonant condition of the stator vanes can be avoided relatively easily.

    摘要翻译: 在包括在旋转机械中与多个转子叶片轴向相对的多个定子叶片的定子叶片装置中,每个定子叶片相对于径向线倾斜,使得作用在每个定子叶片的轮毂端部上的负载减小, 二次流量最小化。 这允许减小每个定子叶片的纵横比,并且减少定子叶片的数量而不损害旋转机械的效率。 这又允许由定子叶片产生的振荡器力与转子叶片的运动相关的频率降低,从而能够相对容易地避免定子叶片的共振状态。

    Axial diffuser for a centrifugal compressor
    2.
    发明授权
    Axial diffuser for a centrifugal compressor 有权
    用于离心压缩机的轴向扩散器

    公开(公告)号:US08038392B2

    公开(公告)日:2011-10-18

    申请号:US12219329

    申请日:2008-07-18

    IPC分类号: F01D11/00

    CPC分类号: F04D29/441

    摘要: The effective efficiency of a centrifugal compressor can be improved by achieving a uniform distribution of fluid velocity across the outlet end of a fluid passage of an axial diffuser for the centrifugal compressor and a high static pressure recovery ratio Cp in the axial diffuser passage. The cross section of each axial diffuser passage is configured such that a relatively high velocity fluid flow in an upstream part of the diffuser passage is directed toward a negative pressure side of a cross section thereof. It can be accomplished by directing a minor axis of a cross section of the diffuser passage substantially perpendicularly to a direction directed from a center of the cross section of the diffuser passage to the central axial line of an impeller or directing the minor axis toward the central axial line of the impeller.

    摘要翻译: 离心式压缩机的有效效率可以通过在离心压缩机的轴向扩散器的流体通道的出口端部分和轴向扩散器通道中的高静态压力回收率Cp的均匀分布来提高。 每个轴向扩散器通道的横截面被构造成使得在扩散器通道的上游部分中相对较高速度的流体流动指向其横截面的负压侧。 可以通过将扩散器通道的横截面的短轴引导到基本上垂直于从扩散器通道的横截面的中心到叶轮的中心轴线的方向,或者将小轴朝向中心 叶轮的轴线。

    Axial diffuser for a centrifugal compressor
    3.
    发明申请
    Axial diffuser for a centrifugal compressor 有权
    用于离心压缩机的轴向扩散器

    公开(公告)号:US20090022586A1

    公开(公告)日:2009-01-22

    申请号:US12219329

    申请日:2008-07-18

    IPC分类号: F04D29/44

    CPC分类号: F04D29/441

    摘要: The effective efficiency of a centrifugal compressor can be improved by achieving a uniform distribution of fluid velocity across the outlet end of a fluid passage of an axial diffuser for the centrifugal compressor and a high static pressure recovery ratio Cp in the axial diffuser passage. The cross section of each axial diffuser passage is configured such that a relatively high velocity fluid flow in an upstream part of the diffuser passage is directed toward a negative pressure side of a cross section thereof. It can be accomplished by directing a minor axis of a cross section of the diffuser passage substantially perpendicularly to a direction directed from a center of the cross section of the diffuser passage to the central axial line of an impeller or directing the minor axis toward the central axial line of the impeller.

    摘要翻译: 离心式压缩机的有效效率可以通过在离心压缩机的轴向扩散器的流体通道的出口端部分和轴向扩散器通道中的高静态压力回收率Cp的均匀分布来提高。 每个轴向扩散器通道的横截面被构造成使得在扩散器通道的上游部分中相对较高速度的流体流动指向其横截面的负压侧。 可以通过将扩散器通道的横截面的短轴引导到基本上垂直于从扩散器通道的横截面的中心到叶轮的中心轴线的方向,或者将小轴朝向中心 叶轮的轴线。

    Process for producing a tetraalkoxysilane
    4.
    发明授权
    Process for producing a tetraalkoxysilane 失效
    四烷氧基硅烷的制造方法

    公开(公告)号:US4752647A

    公开(公告)日:1988-06-21

    申请号:US932315

    申请日:1986-11-19

    CPC分类号: C07F7/045

    摘要: A process for producing a tetraalkoxysilane by subjecting silicon and a lower alkyl alcohol to catalytic reaction in the presence of an alkali metal alkoxide catalyst is provided, which process comprises carrying out the catalytic reaction at 50.degree.-400.degree. C., adding a specified ether compound, and which process affords such advantages that the alkali metal alkoxide catalyst well dissolves in the reaction mixture to make it possible to easily carry out the reaction; whether Si-containing particles as raw material for Si are fine or coarse, the reaction can be carried at an increased reaction rate; and the yield of the tetraalkoxysilane per hour per unit weights of raw materials is high.

    摘要翻译: 提供了一种通过在碱金属醇盐催化剂存在下使硅和低级烷基醇进行催化反应制备四烷氧基硅烷的方法,该方法包括在50-400℃进行催化反应,加入特定的醚 化合物,并且哪个方法具有这样的优点,即碱金属醇盐催化剂很好地溶解在反应混合物中,使得可以容易地进行反应; 作为Si的原料的含Si粒子是微细还是粗粒,可以以提高的反应速度进行反应; 每单位重量原料每小时四烷氧基硅烷的产率高。

    Disk drive unit with a dustproof cap attached to a body module to
protect internal components from dust
    5.
    发明授权
    Disk drive unit with a dustproof cap attached to a body module to protect internal components from dust 失效
    磁盘驱动单元,带有防尘盖,连接到主体模块,以保护内部组件免受灰尘侵害

    公开(公告)号:US5892747A

    公开(公告)日:1999-04-06

    申请号:US664504

    申请日:1996-06-17

    IPC分类号: G11B33/12 G11B33/14

    摘要: In a disk drive unit, a top cover, a front cover and a loading base attached with a body module cooperatively form a substantially closed receiving space for an optical disk. The front cover is provided with a dustproof shutter which closes the foregoing receiving space except upon insertion or ejection of an optical disk cartridge including therein the optical disk. Further, a dustproof cap is attached to the body module so as to cover the underside of the body module where a circuit board is disposed for processing signals relative to an optical head. A hermetically closed space is formed between the underside of the body module and the dustproof cap, in which the circuit board is accommodated.

    摘要翻译: 在磁盘驱动器单元中,顶盖,前盖和附接有主体模块的装载基座协同地形成用于光盘的基本封闭的接收空间。 前盖设有除了插入或弹出其中包括光盘的光盘盒之外的封闭上述接收空间的防尘挡板。 此外,防尘盖附接到主体模块,以便覆盖主体模块的下侧,其中布置有用于处理相对于光学头的信号的电路板。 在主体模块的下侧和容纳电路板的防尘盖之间形成气密封闭的空间。

    Automobile air conditioner
    6.
    发明授权
    Automobile air conditioner 失效
    汽车空调

    公开(公告)号:US4898003A

    公开(公告)日:1990-02-06

    申请号:US264884

    申请日:1988-10-31

    IPC分类号: B60H1/32

    CPC分类号: B60H1/3229 B60H2001/00235

    摘要: An automobile air conditioner which has a generally elongated casing having air intake and outlet grilles defined at opposite sides thereof, a generally elongated evaporator accommodated within the casing so as to extend generally parallel to the direction of elongation of the casing and positioned adjacent the air intake grille, at least one cross-flow fan accommodated within the casing so as to extend generally parallel to the direction of elongation of the casing and positioned between the evaporator and the air outlet grille, and a drive unit for driving the cross-flow fan in one direction for blowing air from the inlet grille to the air outlet grille. The evaporator is supported in position within the casing in a tilted fashion with its upper edge towards the cross-flow fan.

    摘要翻译: 一种汽车空调机,其具有通常细长的外壳,其具有限定在其相对侧的进气和出口格栅,容纳在壳体内的大致细长的蒸发器,以便大致平行于壳体的伸长方向延伸并且定位成邻近进气口 格栅,容纳在所述壳体内的至少一个横流风扇,其大致平行于所述壳体的伸长方向延伸并且位于所述蒸发器和所述排气格栅之间,以及用于驱动所述横流风扇的驱动单元 从入口格栅吹送空气到排气格栅的一个方向。 蒸发器以倾斜的方式支撑在壳体内的适当位置,其上边缘朝向横流风扇。

    Device including an even number of equally spaced magneto-resistors for
detecting rotation or straight motion of a moving body
    9.
    发明授权
    Device including an even number of equally spaced magneto-resistors for detecting rotation or straight motion of a moving body 失效
    装置包括偶数等间隔的磁阻电阻器,用于检测移动体的旋转或直线运动

    公开(公告)号:US5327077A

    公开(公告)日:1994-07-05

    申请号:US997208

    申请日:1992-12-28

    申请人: Shuichi Honda

    发明人: Shuichi Honda

    摘要: A movement detector device consumes less power and provides a high detection reliability. The teeth on a rotating gear are magnetically detected. There are a number of interconnected magneto-resistors MR1 through MRi connected in series, with the series circuit connected between a power supply line and a ground line. There are output signal pickup points P1 through P7 at the connections between the adjacent magneto-resistors. Signals outputted from these signal pickup points P1 through P7 are shifted in their phases by 1/2period with respect to each other. These signals are paired, and each of the paired signals is fed to a differential amplifier circuit to provide signals E1 through E4 as detection signals. In another embodiments, a linear member has a number of magnetic spots which may be detected in the same manner that the gear teeth are detected.

    摘要翻译: 移动检测器装置消耗较少的功率并且提供高的检测可靠性。 旋转齿轮上的齿被磁性检测。 有多个互连的磁阻电阻器MR1至MRi串联连接,串联电路连接在电源线和地线之间。 在相邻磁电阻之间的连接处有输出信号拾取点P1至P7。 从这些信号拾取点P1至P7输出的信号相位相移1/2阶段。 这些信号成对,并且每个成对的信号被馈送到差分放大器电路以提供信号E1至E4作为检测信号。 在另一实施例中,线性构件具有可以以与检测齿轮齿相同的方式检测的多个磁点。