公开(公告)号：US20110044808A1

公开(公告)日：2011-02-24

申请号：US12521531

申请日：2007-11-13

申请人： Ernst Claussen ,  Joachim Peetz ,  Gerd Wegner ,  Ralph Seitter ,  Lutz Bauer

发明人： Ernst Claussen ,  Joachim Peetz ,  Gerd Wegner ,  Ralph Seitter ,  Lutz Bauer

IPC分类号： F04D29/40

CPC分类号： F04D17/04 ,  F04D17/164 ,  F04D29/4206 ,  F04D29/422

摘要： Proposed is a centrifugal fan with a pot-like impeller (10) and with a housing (11) accommodating the impeller (10), the circumferential wall (18) of which, starting from a first circumferential wall region (19) with an arc-like curvature which extends directly along the impeller (10), comprises on the one hand in the direction of rotation of the impeller (10) a second circumferential region (20) with a radial distance from the impeller (10) increasing spirally up to an outlet region (21) and on the other hand against the direction of rotation of the impeller (10) a third circumferential wall region (22) likewise extending to the outlet region (21). Two side walls (25, 26) cover the axial end faces of the impeller (10), wherein a partition (28) on one of the side walls extends into the pot-shaped impeller (10) and divides its interior into a first (V1) and a second (V2) suction chamber, an intake (29) being assigned to the first suction chamber (V1). The third circumferential region (22), starting from the first circumferential region (19), has an S-curvature towards the outlet region (21), its sub-region (24) curved in the same direction as the first circumferential wall region (19) forming a flow baffle element for the air flow returned to the second suction chamber (V2). The outlet region (21) expands in cross-section in the manner of a diffuser in the outlet flow direction. This design results in a centrifugal fan with increased efficiency and increased fan power combined with a lower volume.

摘要翻译： 提出了一种具有盆形叶轮（10）和容纳叶轮（10）的壳体（11）的离心式风扇，其周壁（18）从具有弧形的第一圆周壁区域（19）开始 沿着叶轮（10）直接延伸的弯曲曲率包括一方面在叶轮（10）的旋转方向上，与叶轮（10）的径向距离的第二圆周区域（20）螺旋地增加到 出口区域（21），另一方面抵靠叶轮（10）的旋转方向，第三圆周壁区域（22）同样延伸到出口区域（21）。 两个侧壁（25,26）覆盖叶轮（10）的轴向端面，其中一个侧壁上的隔板（28）延伸到盆形叶轮（10）中，并将其内部分成第一（ V1）和第二（V2）吸入室，入口（29）被分配给第一吸入室（V1）。 从第一圆周区域（19）开始的第三圆周区域（22）具有朝向出口区域（21）的S曲率，其子区域（24）沿与第一圆周壁区域相同的方向（ 形成用于返回到第二吸入室（V2）的空气流的流动挡板元件。 出口区域（21）在出口流动方向上以扩散器的方式在横截面上膨胀。 这种设计产生了离心风扇，效率提高，风扇功率增加，体积更小。

公开(公告)号：US08813689B2

公开(公告)日：2014-08-26

申请号：US12521531

申请日：2007-11-13

申请人： Ernst Claussen ,  Joachim Peetz ,  Gerd Wegner ,  Ralph Seitter ,  Lutz Bauer

发明人： Ernst Claussen ,  Joachim Peetz ,  Gerd Wegner ,  Ralph Seitter ,  Lutz Bauer

IPC分类号： F22B33/16

CPC分类号： F04D17/04 ,  F04D17/164 ,  F04D29/4206 ,  F04D29/422

摘要： A centrifugal fan with a pot-like impeller and with a housing, having a first circumferential wall region with an arc-like curvature which extends directly along the impeller. The housing includes in a direction of rotation of the impeller a second circumferential region with a radial distance from the impeller increasing spirally up to an outlet region. The housing includes in an opposite direction a third circumferential wall region extending to the outlet region, having an S-curvature and including a sub-region curved in the same direction as the first circumferential wall region forming a flow baffle element. Two side walls cover the axial end faces of the impeller wherein one of the side walls extends into the pot-like impeller and divides its interior into a first suction chamber having an intake and a second suction chamber. The outlet region expands in cross-section in the outlet flow direction.

摘要翻译： 一种具有锅形叶轮和壳体的离心式风扇，具有直径沿叶轮延伸的弧形曲率的第一圆周壁区域。 壳体沿叶轮的旋转方向包括与叶轮的径向距离螺旋地增加到出口区域的第二圆周区域。 壳体沿相反方向包括延伸到出口区域的第三圆周壁区域，具有S形曲率并且包括沿与形成流动挡板元件的第一周壁区域相同的方向弯曲的子区域。 两个侧壁覆盖叶轮的轴向端面，其中一个侧壁延伸到盆状叶轮中并将其内部分成具有入口和第二抽吸室的第一抽吸室。 出口区域在出口流动方向上的横截面膨胀。