公开(公告)号：US20030068228A1

公开(公告)日：2003-04-10

申请号：US09976755

申请日：2001-10-08

发明人： Huang Chen-Lung ,  Huang Chuang-Pan

IPC分类号： F04D019/00

CPC分类号： F04D25/105 ,  F04D29/601

摘要： An electric fan capable to rotate for 360 degrees includes a control device consisting of a left and a right shell combined together. The shells have a L-shaped steel plate inside to fix a motor and a speed-reducing device. The speed-reducing device has its spindle fitted with the fixed shaft of a clutch having bead hole for receiving two steel beads and a spring. A shaft sleeve has bead grooves for receiving two aforesaid steel beads and firmly fitted in a copper sleeve by a bolt screwing through a bolthole and resting against a concave groove of the stand post. The shells further have a shaft groove for receiving the upper half portion of the stand post, thus, the upper half portion is actuated by the control device to rotate with an angle from 0 degree to 360 degrees.

摘要翻译： 能够旋转360度的电动风扇包括组合在一起的左右壳体的控制装置。 壳体内部有一个L形钢板，用于固定电机和减速装置。 减速装置的主轴装配有具有用于容纳两个钢珠和弹簧的胎圈孔的离合器的固定轴。 轴套具有用于接收两个上述钢珠的胎圈槽，并通过螺栓拧紧穿过螺栓并牢固地固定在铜套筒中，并抵靠在立柱的凹槽上。 壳体还具有用于容纳立柱的上半部的轴槽，因此，上半部分由控制装置致动以0度至360度的角度旋转。

公开(公告)号：US20040165986A1

公开(公告)日：2004-08-26

申请号：US10765729

申请日：2004-01-23

发明人： Danny S. Parker ,  John Sherwin ,  Bart Hibbs

IPC分类号： F01D001/20 ,  F03D001/04 ,  F01D001/04 ,  F01D001/00 ,  F03B001/00 ,  F04D029/58 ,  F03D011/02 ,  F01D025/24 ,  F04D019/00 ,  F03B011/02 ,  F01D009/00 ,  B63H001/14 ,  F03B003/04 ,  B63H007/02 ,  F04D003/00 ,  F01D005/08 ,  B64C011/00 ,  F01D005/18 ,  F04D029/52 ,  F25D019/00

CPC分类号： F28B1/06 ,  F04D29/164 ,  F04D29/328 ,  F04D29/384 ,  F04D29/664 ,  F24F1/38 ,  F24F1/40 ,  F24F1/50

摘要： Twisted blades for outdoor air conditioner condensers and heat pumps that improve airflow efficiency to minimize operating power requirements. The blades can run at approximately 850 rpm to produce approximately 1930 cfm of air flow using approximately 110 Watts of power from an 8-pole motor with an improved diffuser assembly. Using an OEM 6-pole null hp motor produced approximately 2610 cfm with approximately 145 Watts of power while running the blades at approximately 1100 rpm. Power savings were approximately 24% (40 to 50 Watts) over the conventional configuration with increased air flow. Embodiments of two, three, four and five blades can be equally spaced apart from one another about hubs. Additionally, a novel noise reduction configuration can include asymmetrically mounted blades such as five blades asymmetrically mounted about the hub. Additional features can include conical diffusers with or without conical center bodies were shown to further improve air moving performance by up to 21% at no increase in power. Embodiments coupled with electronically commutated motors (ECMs) showed additional reductions to condenser fan power of approximately 25%. A strip member, such as open cell foam can be applied as a liner to the interior walls of a condenser housing adjacent to the wall surface where the rotating blades sweep against. The porous edge can also be used with the trailing edge and/or tip edge of the blades. These member can both improve air flow by reducing dead air spacing between the rotating blade tips and the interior walls of the condenser housing, as well as lower undesirable noise sound emissions.

摘要翻译： 用于户外空调冷凝器和热泵的扭转叶片，可提高气流效率，以最大限度地减少操作功率需求。 刀片可以在大约850转/分钟运行，从而使用来自具有改进的扩散器组件的8极马达的大约110瓦的功率产生大约1930cfm的气流。 使用OEM 6极1/8马力的电机，以约1100转/分的速度运行叶片，产生大约2610立方英尺（约为145瓦）的功率。 与常规配置相比，节电量约为24％（40至50瓦），空气流量增加。 两个，三个，四个和五个叶片的实施例可以围绕轮毂相互间隔开。 此外，新颖的降噪配置可以包括不对称安装的叶片，例如围绕轮毂不对称地安装的五个叶片。 附加特征可以包括具有或不具有圆锥形中心体的圆锥形扩散器，以在不增加功率的情况下进一步将空气移动性能提高高达21％。 与电子换向马达（ECM）相结合的实施方案显示出约25％的冷凝器风扇功率的额外降低。 诸如开孔泡沫的带状构件可以作为衬垫施加到邻近壁面的冷凝器壳体的内壁，其中旋转叶片相对于扫掠。 多孔边缘也可以与叶片的后缘和/或尖端边缘一起使用。 这些构件可以通过减少旋转叶片尖端和冷凝器壳体的内壁之间的死气体空间以及较低的不期望的噪声声发射来改善气流。

公开(公告)号：US20020094271A1

公开(公告)日：2002-07-18

申请号：US09759501

申请日：2001-01-16

发明人： Jian J. Yeuan ,  William C. Liao

IPC分类号： F04D019/00 ,  F04D029/38

CPC分类号： F04D19/002 ,  F04D25/0613 ,  F04D29/325

摘要： The present invention provides an axial flow fan structure having an optimal airflow rate and pressure head. The axial flow fan structure includes a rotor provided with a plurality of fan blades which are overlapped with each other. In such a manner, variations of the chord angle, the air inlet angle, and the air outlet angle of the fan blade together with adjustment of the span of the fan blades co-operate with rotation of the fan blade to produce an optimal airflow rate and pressure head. In addition, the fan blades of the rotor may co-operate with a set of stator guide vanes, thereby further increase the pressure head of the airflow, while the airflow having a high flow rate and high pressurization is guided to a predetermined direction more efficiently.

摘要翻译： 本发明提供一种具有最佳气流速率和压力头的轴流风扇结构。 轴流风扇结构包括具有彼此重叠的多个风扇叶片的转子。 以这种方式，风扇叶片的弦角，进气角度和风口出口角度的变化以及风扇叶片跨度的调节与风扇叶片的旋转相配合以产生最佳的气流速率 和压头。 此外，转子的风扇叶片可与一组定子导向叶片配合，从而进一步增加气流的压头，同时具有高流量和高加压的气流更有效地被引导到预定方向 。