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    Multiblade centrifugal blower
    1.
    发明授权
    Multiblade centrifugal blower 有权
    多叶离心式鼓风机

    公开(公告)号：US07967557B2

    公开(公告)日：2011-06-28

    申请号：US11911157

    申请日：2007-01-29

    申请人： Kazuki Okamoto ,  Hitoshi Kikuchi ,  Yasuyoshi Makino ,  Hidetoshi Yamato ,  Shoji Yamada

    发明人： Kazuki Okamoto ,  Hitoshi Kikuchi ,  Yasuyoshi Makino ,  Hidetoshi Yamato ,  Shoji Yamada

    IPC分类号： F04D29/30

    CPC分类号： F04D29/282 ,  F04D29/288 ,  F04D29/30

    摘要： A multiblade centrifugal blower includes a centrifugal fan including a hub rotated by a motor, and plural curved rectangular blades arranged at predetermined intervals in a circumferential direction of the hub forming a cylindrical basket with an opening on a front side of the hub, and a scroll casing including an air inlet and an air outlet, and houses the centrifugal fan inside to face the air inlet. A length from a rear end to an front end of an outer edge of the blade is shorter than a length from a rear end to an front end of an inner edge of the blade, and a bell mouth is configured such that distance between a tip part of the inner edge of the blade and an inner wall of the scroll casing is the minimum at an inner tip part P of the bell mouth of the air inlet.

    摘要翻译： 多叶离心式鼓风机包括：离心式风扇，其具有由电动机旋转的轮毂;以及多个弯曲矩形叶片，其沿轮毂周向以规定间隔配置，形成圆筒状的篮状物，该轮毂在轮毂的前侧具有开口， 壳体包括空气入口和空气出口，并且将离心风扇容纳在内部以面对空气入口。 从叶片的外边缘的后端到前端的长度短于从叶片的内边缘的后端到前端的长度，并且喇叭口被构造成使得尖端之间的距离 叶片的内缘的一部分和涡旋壳体的内壁在空气入口的喇叭口的内端部P处最小。

    Centrifugal multiblade fan
    3.
    发明申请
    Centrifugal multiblade fan 有权
    离心式多叶扇

    公开(公告)号：US20090028713A1

    公开(公告)日：2009-01-29

    申请号：US11665258

    申请日：2006-05-30

    申请人： Hitoshi Kikuchi ,  Kazuki Okamoto ,  Shoji Yamada ,  Yasuyoshi Makino

    发明人： Hitoshi Kikuchi ,  Kazuki Okamoto ,  Shoji Yamada ,  Yasuyoshi Makino

    IPC分类号： F01D5/14 ,  F04D17/08

    CPC分类号： F04D29/282 ,  F04D29/30

    摘要： A plurality of curved rectangular blades are arranged in a circumferential direction on a periphery of a disc, forming a pipe-like basket shape with an opening on a front side of the disc. Rotation of the disc draws in air from the opening and draws out the air in a centrifugal direction through a space between the blades. The blades are formed of a thick plate part close to the disc and a thin plate part that is thinner than the thick plate part and farther than the thick plate part from the disc. A bulge serving as a boundary between the thick plate part and the thin plate part is formed on a negative pressure surface of the blades, which is of curved convex shape.

    摘要翻译： 多个弯曲的矩形叶片沿圆周方向布置在盘的周边上，形成在盘的前侧具有开口的管状篮状。 盘的旋转从开口吸入空气，并通过叶片之间的空间沿离心方向抽出空气。 叶片由靠近盘的厚板部分形成，并且薄板部分比厚板部分薄，并且比来自盘的厚板部分更薄。 作为厚板部分和薄板部分之间的边界的凸起形成在具有弯曲凸形的叶片的负压表面上。

    Centrifugal multiblade fan
    4.
    发明授权
    Centrifugal multiblade fan 有权
    离心式多叶扇

    公开(公告)号：US07771169B2

    公开(公告)日：2010-08-10

    申请号：US11665258

    申请日：2006-05-30

    申请人： Hitoshi Kikuchi ,  Kazuki Okamoto ,  Shoji Yamada ,  Yasuyoshi Makino

    发明人： Hitoshi Kikuchi ,  Kazuki Okamoto ,  Shoji Yamada ,  Yasuyoshi Makino

    IPC分类号： F01D5/14

    CPC分类号： F04D29/282 ,  F04D29/30

    摘要： A plurality of curved rectangular blades are arranged in a circumferential direction on a periphery of a disc, forming a pipe-like basket shape with an opening on a front side of the disc. Rotation of the disc draws in air from the opening and draws out the air in a centrifugal direction through a space between the blades. The blades are formed of a thick plate part close to the disc and a thin plate part that is thinner than the thick plate part and farther than the thick plate part from the disc. A bulge serving as a boundary between the thick plate part and the thin plate part is formed on a negative pressure surface of the blades, which is of curved convex shape.

    摘要翻译： 多个弯曲的矩形叶片沿圆周方向布置在盘的周边上，形成在盘的前侧具有开口的管状篮状。 盘的旋转从开口吸入空气，并通过叶片之间的空间沿离心方向抽出空气。 叶片由靠近盘的厚板部分形成，并且薄板部分比厚板部分薄，并且比来自盘的厚板部分更薄。 作为厚板部分和薄板部分之间的边界的凸起形成在具有弯曲凸形的叶片的负压表面上。

    Blower
    5.
    发明授权
    Blower 有权
    鼓风机

    公开(公告)号：US07331758B2

    公开(公告)日：2008-02-19

    申请号：US10521787

    申请日：2004-06-17

    申请人： Masahiro Arinaga ,  Kunihiko Kaga ,  Shoji Yamada ,  Katsuhisa Ootsuta ,  Hitoshi Kikuchi ,  Yoshimi Iwamura ,  Yasuyoshi Makino

    发明人： Masahiro Arinaga ,  Kunihiko Kaga ,  Shoji Yamada ,  Katsuhisa Ootsuta ,  Hitoshi Kikuchi ,  Yoshimi Iwamura ,  Yasuyoshi Makino

    IPC分类号： F04D29/54

    CPC分类号： F04D17/06 ,  F04D29/386

    摘要： A blower includes: an impeller on which there are arranged axial flow blades 40 mounted at circumferential intervals to an outer peripheral surface of a boss; a case surrounding the impeller; and a bell mouth cylindrically constricted to guide gas into the case, wherein an inner diameter of the bell mouth is smaller than an outer diameter of the impeller. Further, each blade has, in the radial direction, a sweepforward wing portion situated on the boss side and exhibiting a positive advance ratio value, and a sweepback wing portion situated on the outer peripheral side of the blade and exhibiting a negative advance ratio value, with the arc length of each blade increasing from the boss side toward the outer peripheral side. Therefore, it is possible to achieve an improvement in ventilation efficiently, through an increase in static pressure and to achieve a reduction in noise.

    摘要翻译： 鼓风机包括：叶轮，其上布置有轴向流动叶片40，其周向间隔安装到凸台的外周表面; 围绕叶轮的壳体; 以及圆筒形收缩的喇叭口，以将气体引导到壳体中，其中喇叭口的内径小于叶轮的外径。 此外，每个叶片在径向方向上具有位于凸台侧并且呈现正前进比值的前掠翼部，以及位于叶片的外周侧并且呈现负提前比值的回扫翼部， 每个叶片的弧长度从凸台侧向外周侧增加。 因此，可以通过增加静压而有效地实现通气的改善，并且能够实现噪音的降低。

    Blower
    6.
    发明申请
    Blower 有权
    鼓风机

    公开(公告)号：US20050260075A1

    公开(公告)日：2005-11-24

    申请号：US10521787

    申请日：2004-06-17

    申请人： Masahiro Arinaga ,  Kunihiko Kaga ,  Shoji Yamada ,  Katsuhisa Ootsuta ,  Hitoshi Kikuchi ,  Yoshimi Iwamura ,  Yasuyoshi Makino

    发明人： Masahiro Arinaga ,  Kunihiko Kaga ,  Shoji Yamada ,  Katsuhisa Ootsuta ,  Hitoshi Kikuchi ,  Yoshimi Iwamura ,  Yasuyoshi Makino

    IPC分类号： F04D17/06 ,  F04D29/38 ,  F01D1/00

    CPC分类号： F04D17/06 ,  F04D29/386

    摘要： A blower includes: an impeller on which there are arranged axial flow blades 40 mounted at circumferential intervals to an outer peripheral surface of a boss; a case surrounding the impeller; and a bell mouth cylindrically constricted to guide gas into the case, wherein an inner diameter of the bell mouth is smaller than an outer diameter of the impeller. Further, each blade has, in the radial direction, a sweepforward wing portion situated on the boss side and exhibiting a positive advance ratio value, and a sweepback wing potion situated on the outer peripheral side of the blade and exhibiting a negative advance ratio value, with the arc length of each blade increasing from the boss side toward the outer peripheral side. Therefore, it is possible to achieve an improvement in ventilation efficiently, through an increase in static pressure and to achieve a reduction in noise.

    摘要翻译： 鼓风机包括：叶轮，其上布置有轴向流动叶片40，其周向间隔安装到凸台的外周表面; 围绕叶轮的壳体; 以及圆筒形收缩的喇叭口，以将气体引导到壳体中，其中喇叭口的内径小于叶轮的外径。 此外，每个叶片在径向方向上具有位于凸台侧并且呈现正前进比值的前掠翼部分，以及位于叶片的外周侧并且呈现负提前比值的回扫翼部分， 每个叶片的弧长度从凸台侧向外周侧增加。 因此，可以通过增加静压而有效地实现通气的改善，并且能够实现噪音的降低。