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    • 10. 发明专利
    • Fan, casting die and fluid delivery device
    • 风扇,铸造和流体输送装置
    • JP2012007585A
    • 2012-01-12
    • JP2010146051
    • 2010-06-28
    • Sharp Corpシャープ株式会社
    • SHIRAICHI YUKISHIGEOTSUKA MASAOTAKAHASHI MASAYA
    • F04D29/30F04D17/04
    • F04D17/16F04D17/04F04D29/023F04D29/282F04D29/283F04D29/30F04D29/681F05D2230/53F05D2300/44
    • PROBLEM TO BE SOLVED: To provide a fan, a casting die and a fluid delivery device, capable of obtaining excellent air blowing capability and reducing noise.SOLUTION: A cross flow fan is provided with multiple fan blades 21 that are circumferentially provided with intervals therebetween. Each of the fan blades 21 has an inner edge 27 arranged on an inner peripheral side and an outer edge 26 arranged on an outer peripheral side. In the fan blade 21, a blade surface 23 extending between the inner edge 27 and the outer edge 26 is formed. An air flow flowing between the inner edge 27 and the outer edge 26 is generated on the blade surface 23 with rotation of the fan. The fan blade 21 has an airfoil profile in which a recess 41 is formed on the blade surface 23. The recess 41 is arranged at a position nearer to the outer edge 26 than the inner edge 27 and is formed extending from one end 31 of the fan blade 21 to the other end 32 in the direction of a rotary axis of the fan.
    • 要解决的问题:提供能够获得优异的鼓风能力和降低噪音的风扇,铸模和流体输送装置。

      解决方案:横流风扇设有多个风扇叶片21,其周向设置有间隔。 每个风扇叶片21具有布置在内周侧的内边缘27和布置在外周侧的外边缘26。 在风扇叶片21中,形成在内边缘27和外边缘26之间延伸的叶片表面23。 通过风扇的旋转,在叶片表面23上产生在内边缘27和外边缘26之间流动的气流。 风扇叶片21具有翼形轮廓,其中在叶片表面23上形成有凹部41.凹部41布置在比内边缘27更靠近外边缘26的位置处,并且形成为从内边缘27的一端31延伸 风扇叶片21沿着风扇的旋转轴线的方向延伸到另一端32。 版权所有(C)2012,JPO&INPIT