公开(公告)号：US09046110B2

公开(公告)日：2015-06-02

申请号：US13255196

申请日：2010-03-09

申请人： Hironobu Teraoka ,  Shimei Tei ,  Toru Iwata

发明人： Hironobu Teraoka ,  Shimei Tei ,  Toru Iwata

IPC分类号： F01D5/14 ,  F04D29/28 ,  F04D17/04 ,  F04D29/30 ,  F24F1/00

CPC分类号： F04D29/283 ,  F04D17/04 ,  F04D29/30 ,  F04D29/681 ,  F24F1/0025 ,  F24F2001/0048

摘要： A crossflow fan includes a rotary impeller formed by curved blades 42. Each of the blades 42 has an outer peripheral edge 43 close to the centrifugal side of the impeller and an inner peripheral edge 44 close to the rotation axis side of the impeller. A plurality of cutouts 45 are formed in the outer peripheral edge 43 and spaced apart at predetermined intervals. Dimples 48 for changing a boundary layer from a laminar flow to a turbulent flow are formed in a negative pressure surface 4q of each blade 42 in the vicinity of the outer peripheral edge 43 to prevent the gas flowing around the blade 42 from separating from the blade 42.

摘要翻译： 横流风扇包括由弯曲叶片42形成的旋转叶轮。每个叶片42具有靠近叶轮的离心侧的外周边缘43和靠近叶轮的旋转轴线侧的内周边缘44。 多个切口45形成在外周边缘43中并且以预定间隔隔开。 在每个叶片42的外周边缘43附近的负压表面4q中形成用于将边界层从层流改变为湍流的凹坑48，以防止在叶片42周围流动的气体与叶片分离 42。

公开(公告)号：US20110033306A1

公开(公告)日：2011-02-10

申请号：US12937833

申请日：2009-04-30

申请人： Hironobu Teraoka ,  Shimei Tei

发明人： Hironobu Teraoka ,  Shimei Tei

IPC分类号： F04D29/38

CPC分类号： F24F7/007 ,  F04D17/04 ,  F04D17/06 ,  F04D29/283 ,  F24F1/0007 ,  F24F1/0025 ,  F24F1/0057

摘要： A crossflow fan includes an impeller formed by plate-like blades 42. Each blade 42 is inclined such that the outer edge 42a is located on the leading side of the inner edge 42d with respect to the rotation direction of the impeller 41. The face of each blade 42 that is located on the leading side of the rotation direction forms a positive pressure surface 42p, and a face located on the trailing side forms a negative pressure surface 42q. Notches 42b are formed at the outer edge 42a of the blade 42. The notches 42b are arranged at predetermined intervals along the rotation axis of the impeller. The bottom 42y of the notch 42b is connected to the positive pressure surface 42p at a positive pressure corner 42n and connected to the negative pressure surface 42q at a negative pressure corner 42m. The positive pressure corner 42n and the negative pressure corner 42m are both rounded.

摘要翻译： 横流风扇包括由板状叶片42形成的叶轮。每个叶片42倾斜使得外边缘42a相对于叶轮41的旋转方向位于内边缘42d的前侧。面 位于旋转方向前方的每个叶片42形成正压面42p，位于后侧的面形成负压面42q。 凹口42b形成在叶片42的外边缘42a处。凹口42b沿叶轮的旋转轴线以预定间隔布置。 凹口42b的底部42y在正压角42n处连接到正压表面42p，并且在负压角42m处连接到负压表面42q。 正压角42n和负压角42m均为圆形。

公开(公告)号：US20120308370A1

公开(公告)日：2012-12-06

申请号：US13577917

申请日：2011-02-09

申请人： Takanori Nagae ,  Shimei Tei

发明人： Takanori Nagae ,  Shimei Tei

IPC分类号： F04D17/16

CPC分类号： F04D29/441 ,  F04D29/162 ,  F04D29/4213 ,  F05D2250/51

摘要： A centrifugal fan has an impeller and a bell mouth. The bell mouth has a plurality of wall parts provided on an outer peripheral surface of the bell mouth. The wall parts are arranged at predetermined intervals on the outer peripheral surface in a circumferential direction of the outer peripheral surface. Each of the wall parts extends along the outer peripheral surface from the front side to the rear side in an axial direction so as to be substantially parallel to the axial direction and to a radial direction of the bell mouth.

摘要翻译： 离心风机有一个叶轮和一个喇叭口。 喇叭口具有设置在喇叭口的外周面上的多个壁部。 壁部在外周面的圆周方向上以规定间隔配置在外周面上。 每个壁部分沿着外周表面沿轴向方向从前侧延伸到后侧，从而基本上平行于喇叭口的轴向方向和径向方向。

公开(公告)号：US20110318189A1

公开(公告)日：2011-12-29

申请号：US13255196

申请日：2010-03-09

申请人： Hironobu Teraoka ,  Shimei Tei ,  Toru Iwata

发明人： Hironobu Teraoka ,  Shimei Tei ,  Toru Iwata

IPC分类号： F01D5/14

CPC分类号： F04D29/283 ,  F04D17/04 ,  F04D29/30 ,  F04D29/681 ,  F24F1/0025 ,  F24F2001/0048

摘要： A crossflow fan includes a rotary impeller formed by curved blades 42. Each of the blades 42 has an outer peripheral edge 43 close to the centrifugal side of the impeller and an inner peripheral edge 44 close to the rotation axis side of the impeller. A plurality of cutouts 45 are formed in the outer peripheral edge 43 and spaced apart at predetermined intervals. Dimples 48 for changing a boundary layer from a laminar flow to a turbulent flow are formed in a negative pressure surface 4q of each blade 42 in the vicinity of the outer peripheral edge 43 to prevent the gas flowing around the blade 42 from separating from the blade 42.

摘要翻译： 横流风扇包括由弯曲叶片42形成的旋转叶轮。每个叶片42具有靠近叶轮的离心侧的外周边缘43和靠近叶轮的旋转轴线侧的内周边缘44。 多个切口45形成在外周边缘43中并且以预定间隔隔开。 在每个叶片42的外周边缘43附近的负压表面4q中形成用于将边界层从层流改变为湍流的凹坑48，以防止在叶片42周围流动的气体与叶片分离 42。

公开(公告)号：US20110033307A1

公开(公告)日：2011-02-10

申请号：US12937545

申请日：2009-04-30

申请人： Hironobu Teraoka ,  Shimei Tei

发明人： Hironobu Teraoka ,  Shimei Tei

IPC分类号： F04D29/38

CPC分类号： F24F1/0007 ,  F03G7/00 ,  F24F1/0025 ,  F24F7/007

摘要： A crossflow fan includes an impeller formed by plate-like blades 42. Each blade 42 is inclined such that the outer edge 42a is located on the leading side of the inner edge 42d with respect to the rotation direction of the impeller 41. The face of each blade 42 that is located on the leading side of the rotation direction forms a positive pressure surface 42p, and a face located on the trailing side forms a negative pressure surface 42q. Notches 42b are formed at the outer edge 42a of the blade 42. The notches 42b are arranged at predetermined intervals along the rotation axis of the impeller. A basic shape section 42c is formed between each adjacent pair of the notches 42b. The blade thickness L2 in the vicinity of the bottom 42y of each notch 42b is smaller than the blade thickness of the basic shape section 42c adjacent to the notch 42b.

摘要翻译： 横流风扇包括由板状叶片42形成的叶轮。每个叶片42倾斜使得外边缘42a相对于叶轮41的旋转方向位于内边缘42d的前侧。面 位于旋转方向前方的每个叶片42形成正压面42p，位于后侧的面形成负压面42q。 凹口42b形成在叶片42的外边缘42a处。凹口42b沿叶轮的旋转轴线以预定间隔布置。 在相邻的一对切口42b之间形成基本形状部42c。 每个凹口42b的底部42y附近的叶片厚度L2小于与凹口42b相邻的基本形状部分42c的叶片厚度。

公开(公告)号：US08596958B2

公开(公告)日：2013-12-03

申请号：US12937545

申请日：2009-04-30

申请人： Hironobu Teraoka ,  Shimei Tei

发明人： Hironobu Teraoka ,  Shimei Tei

IPC分类号： F04D5/00 ,  F04D29/38

CPC分类号： F24F1/0007 ,  F03G7/00 ,  F24F1/0025 ,  F24F7/007

摘要： A crossflow fan includes an impeller formed by plate-like blades 42. Each blade 42 is inclined such that the outer edge 42a is located on the leading side of the inner edge 42d with respect to the rotation direction of the impeller 41. The face of each blade 42 that is located on the leading side of the rotation direction forms a positive pressure surface 42p, and a face located on the trailing side forms a negative pressure surface 42q. Notches 42b are formed at the outer edge 42a of the blade 42. The notches 42b are arranged at predetermined intervals along the rotation axis of the impeller. A basic shape section 42c is formed between each adjacent pair of the notches 42b. The blade thickness L2 in the vicinity of the bottom 42y of each notch 42b is smaller than the blade thickness of the basic shape section 42c adjacent to the notch 42b.

摘要翻译： 横流风扇包括由板状叶片42形成的叶轮。每个叶片42倾斜使得外边缘42a相对于叶轮41的旋转方向位于内边缘42d的前侧。面 位于旋转方向前方的每个叶片42形成正压面42p，位于后侧的面形成负压面42q。 凹口42b形成在叶片42的外边缘42a处。凹口42b沿叶轮的旋转轴线以预定间隔布置。 在相邻的一对切口42b之间形成基本形状部42c。 每个凹口42b的底部42y附近的叶片厚度L2小于与凹口42b相邻的基本形状部分42c的叶片厚度。