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4 条记录 (耗时 0.02 秒)

    Centrifugal compressor
    1.
    发明授权
    Centrifugal compressor 失效
    离心式压缩机

    公开(公告)号：US5178516A

    公开(公告)日：1993-01-12

    申请号：US591651

    申请日：1990-10-02

    申请人： Koji Nakagawa ,  Takeo Takagi ,  Junichi Kaneko ,  Yoshiaki Abe ,  Haruki Sakai

    发明人： Koji Nakagawa ,  Takeo Takagi ,  Junichi Kaneko ,  Yoshiaki Abe ,  Haruki Sakai

    IPC分类号： F04D29/44

    CPC分类号： F04D29/444 ,  F05D2250/52

    摘要： A centrifugal compressor has diffusers which convert a high velocity, low pressure stream of fluid which flows out of an impeller to a high-velocity high-pressure flow due to the action of a purality of stator blades disposed near the outer periphery of the impeller. In this compressor, the portion of the stator blade or of an auxiliary blade which is provided in the diffuser located on the side of a front shroud is disposed closer to the impeller than the portion thereof located on the side of a main shroud, and the leading edge of the stator blade is thus inclined from the portion thereof located on the side of the main shroud to the portion thereof located on the side of the front shroud. The configuration of the front edge of a stator blade or of an auxiliary blade which is provided in the diffuser is so improved as to restrict back flow which occurs on the side of the front shroud when the flow rate is small and to lower the minimum flow rate. Furthermore, an auxiliary blade and an intermediate blade are disposed between the adjacent stator blades, and the leading edge of the auxiliary blade is so improved as to enlarge the operation range of the diffuser and to improve volume control greatly.

    摘要翻译： 离心压缩机具有扩散器，其将来自叶轮的高速，低压流体流转换成高速高压流，这是由于设置在叶轮外周附近的多个定子叶片的作用。 在该压缩机中，设置在位于前罩侧的扩散器中的定子叶片或辅助叶片的部分比位于主护罩一侧的部分更靠近叶轮设置， 因此，定子叶片的前缘从其位于主护罩一侧的部分倾斜到位于前护罩一侧的部分。 设置在扩散器中的定子叶片或辅助叶片的前缘的构造被改进，以限制当流量小时在前护罩侧发生的回流，并且降低最小流量 率。 此外，辅助叶片和中间叶片设置在相邻的定子叶片之间，并且辅助叶片的前缘被改善以扩大扩散器的操作范围并且极大地提高体积控制。

    Vane controller
    4.
    发明授权
    Vane controller 失效
    风扇控制器

    公开(公告)号：US5096374A

    公开(公告)日：1992-03-17

    申请号：US474141

    申请日：1990-02-02

    申请人： Haruki Sakai ,  Hisashi Nishkawa

    发明人： Haruki Sakai ,  Hisashi Nishkawa

    IPC分类号： F01D17/16 ,  F04D29/46 ,  F04D29/56

    CPC分类号： F04D29/462 ,  F01D17/162 ,  F04D29/4213 ,  F04D29/563 ,  F05D2250/51

    摘要： A vane controller for a plurality of vanes disposed in a fluid conduit has vane shafts connected to the vanes and extending radially and spaced circumferentially around the conduit, and a control ring outside the conduit and movable circumferentially and connected to said vane shafts by levers to cause the vane shafts to rotate in unison to adjust the vane position. To reduce friction, the control ring is movable both circumferentially and axially and is preferably spaced from the conduit wall. A spherical bearing on the ring slidably receives a pin carried by each lever.