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    FLUID MACHINE
    7.
    发明申请
    FLUID MACHINE 有权
    流体机

    公开(公告)号：US20100322771A1

    公开(公告)日：2010-12-23

    申请号：US12735600

    申请日：2009-01-14

    申请人： Junichi Kurokawa ,  Shuusaku Kagawa

    发明人： Junichi Kurokawa ,  Shuusaku Kagawa

    IPC分类号： F04D29/24

    CPC分类号： F04D5/002 ,  F04D1/00 ,  F04D5/001 ,  F04D29/2255 ,  F04D29/24

    摘要： The present invention provides a rotary-type fluid machine which enables practical and effective operation in an extremely low specific speed range. The rotary-type fluid machine (1, 1′) has an impeller (10, 10′) integrally connected to a rotating drive shaft (2). The impeller is accommodated in a casing (3). Fluid (a) of a suction fluid passage (4) to be pumped flows into a center part (11) of the impeller. The fluid (b) is discharged from a peripheral portion (12) of the impeller by the effect of the centrifugal force of the rotating impeller, so that the fluid is delivered through a delivery fluid passage (5) outside of the casing. Many grooves (15) extending toward a peripheral edge of the impeller from the center part of the impeller are formed on the impeller. The groove opens on an outer circumferential surface (18) of the impeller, and causes strong recirculation vortices (R) to be formed in the vicinity of the peripheral edge of the impeller when the impeller rotates.

    摘要翻译： 本发明提供一种旋转式流体机械，其能够在极低的特定速度范围内实现有效的操作。 旋转式流体机械（1,1'）具有与旋转驱动轴（2）一体连接的叶轮（10,10'）。 叶轮容纳在壳体（3）中。 要泵送的抽吸流体通道（4）的流体（a）流入叶轮的中心部分（11）。 流体（b）通过旋转叶轮的离心力从叶轮的周边部分（12）排出，使得流体通过壳体外部的输送流体通道（5）输送。 在叶轮上形成有许多从叶轮的中心部向叶轮周缘延伸的槽（15）。 该槽在叶轮的外周面（18）上开口，并且当叶轮转动时，在叶轮的周缘附近形成强的再循环旋涡（R）。

    Turbo-type machines
    9.
    发明授权
    Turbo-type machines 有权
    涡轮式机器

    公开(公告)号：US06540482B2

    公开(公告)日：2003-04-01

    申请号：US09811495

    申请日：2001-03-20

    申请人： Kouichi Irie ,  Tomoyoshi Okamura ,  Sumio Sudo ,  Junichi Kurokawa

    发明人： Kouichi Irie ,  Tomoyoshi Okamura ,  Sumio Sudo ,  Junichi Kurokawa

    IPC分类号： F01D100

    CPC分类号： F04D29/4273 ,  F04D29/688 ,  Y10S415/914

    摘要： A turbo-type machine, comprising a casing 2 storing an impeller within an inside thereof, and a plural number of grooves formed on an inner surface of the casing in a direction of pressure gradient of fluid, wherein the grooves 124 are provided from 80 to 150 pieces around a periphery on the inner surface of the casing, and a total width of the grooves all around the inner surface of the casing is from 30% to 50% of a peripheral length on the inner surface of the casing. Also, the area on cross-section of the groove 124 within an area where the blades exist is made larger than that of the groove outside where the blades exist, or openings 127 are drilled on a bottom surface of the grooves, each penetrating through thickness of the casing, or the groove is made in a two-layer structure in the direction of pressure gradient of fluid. Or, a round portion 135 is formed at a tip of the blade 122, or a fin 136, thereby suppressing the cavitations to generate, as well as obtaining stabilization of the characteristic curve thereof.

    摘要翻译： 一种涡轮式机器，包括：壳体2，其在其内部存储有叶轮;以及多个槽，其沿着流体的压力梯度的方向形成在所述壳体的内表面上，其中，所述槽124设置在从80到 壳体内表面周围150个，壳体内表面周围的槽的总宽度在壳体内表面上的周长的30％〜50％。 此外，在存在刀片的区域内的槽124的横截面的面积比在叶片存在的外侧的槽的面积大，或者在槽的底面上钻出开口127，每个贯穿厚度 或者槽沿流体压力梯度的方向制成两层结构。 或者，在叶片122的尖端或翅片136上形成圆形部分135，从而抑制空化以产生其特性曲线的稳定性。

    Turbo machines
    10.
    发明授权
    Turbo machines 有权
    涡轮机

    公开(公告)号：US06302643B1

    公开(公告)日：2001-10-16

    申请号：US09399132

    申请日：1999-09-20

    申请人： Junichi Kurokawa ,  Hitoharu Kimura ,  Tomoyoshi Okamura ,  Takahide Nagahara ,  Sumio Sudo ,  Akira Manabe ,  Norimitsu Kuwabara

    发明人： Junichi Kurokawa ,  Hitoharu Kimura ,  Tomoyoshi Okamura ,  Takahide Nagahara ,  Sumio Sudo ,  Akira Manabe ,  Norimitsu Kuwabara

    IPC分类号： F04D2966

    CPC分类号： F04D29/669 ,  F04D27/009 ,  F04D27/0207 ,  F04D29/4213 ,  F04D29/4273 ,  F04D29/685 ,  F05B2260/96

    摘要： A turbo machine comprising: an impeller having a plurality of blades therewith; a casing having a flow surface defined therein and being positioned with the impeller therein; and a plurality of grooves being formed in the flow surface of the casing, for connecting between an inlet side of said impeller and an area on the flow surface of the casing in which the blades of said impeller reside, on a periphery thereof, wherein an index of determining a form of the grooves is obtained by a following equation: JE No.=WR×VR×WDR×DLDR where, WR (a width ratio) is a value obtained by dividing a total value of the groove widths W with a length of casing periphery; VR (a volume ratio) is a value obtained by dividing a total volume of said grooves with a volume of said impeller; WDR (a width-depth ratio) is a value obtained by dividing the width W of said groove with a depth D of said groove; and DLDR is a ratio between a length of said groove in flow, being lower than the impeller inlet and the depth of said groove, and wherein, said grooves are formed so that the index JE No. lies in a range from 0.03 to 0.5.

    摘要翻译： 一种涡轮机，包括：具有多个叶片的叶轮; 具有限定在其中的流动表面并且其中具有叶轮的壳体的壳体; 并且在所述壳体的流动表面中形成有多个槽，用于在所述叶轮的入口侧和所述叶轮的所述叶片的所述壳体的流动表面的其周边上的区域之间连接，其中， 通过以下等式获得确定凹槽形状的索引：其中，WR（宽度比）是通过将槽宽度W的总值除以外壳周长的长度得到的值; VR（体积比）是通过将所述槽的总体积与所述叶轮的体积分开而获得的值; WDR（宽度 - 深度比）是通过将所述槽的宽度W与所述槽的深度D分开而获得的值; 并且DLDR是流体中的所述槽的长度之间的比率，低于所述叶轮入口和所述槽的深度，并且其中，所述槽形成为使得所述指数JE编号在0.03至0.5的范围内。