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    • 8. 发明申请
    • NON-UNIFORM BLADE DISTRIBUTION FOR ROTARY WING AIRCRAFT
    • 旋转式飞机的非均匀叶片分配
    • US20140154084A1
    • 2014-06-05
    • US13689941
    • 2012-11-30
    • Mark R. Alber
    • Mark R. Alber
    • F01D5/02
    • F01D5/02B64C27/22B64C27/82B64C2027/8236
    • A translational thrust system for a rotary wing aircraft is provided including a propeller system. The propeller system includes more than one pair of propeller blades extending radially outward from a rotatable propeller hub. Each pair of propeller blades includes a first propeller blade and a second propeller blade arranged diametrically opposite one another about a circumference of the propeller hub. Each pair of propeller blades is arranged at an angle to an adjacent pair of propeller blades such that the angle is less than is the pairs of propeller blades were uniformly distributed around the circumference of the propeller hub.
    • 提供了一种用于旋翼飞机的平移推力系统,包括螺旋桨系统。 螺旋桨系统包括从旋转螺旋桨毂径向向外延伸的多对螺旋桨叶片。 每对螺旋桨叶片包括第一螺旋桨叶片和第二螺旋桨叶片,所述第一螺旋桨叶片和第二螺旋桨叶片围绕螺旋桨轮毂的圆周彼此沿直径相对地布置。 每对螺旋桨叶片与相邻的一对螺旋桨叶片成角度地设置,使得角度小于螺旋桨叶片周围均匀分布的角度。
    • 10. 发明授权
    • Non-uniform blade distribution for rotary wing aircraft
    • 旋翼飞机的不均匀叶片分布
    • US09528375B2
    • 2016-12-27
    • US13689941
    • 2012-11-30
    • Mark R. Alber
    • Mark R. Alber
    • B64C27/82F01D5/02B64C27/22
    • F01D5/02B64C27/22B64C27/82B64C2027/8236
    • A translational thrust system for a rotary wing aircraft is provided including a propeller system. The propeller system includes more than one pair of propeller blades extending radially outward from a rotatable propeller hub. Each pair of propeller blades includes a first propeller blade and a second propeller blade arranged diametrically opposite one another about a circumference of the propeller hub. Each pair of propeller blades is arranged at an angle to an adjacent pair of propeller blades such that the angle is less than is the pairs of propeller blades were uniformly distributed around the circumference of the propeller hub.
    • 提供了一种用于旋翼飞机的平移推力系统,包括螺旋桨系统。 螺旋桨系统包括从旋转螺旋桨毂径向向外延伸的多对螺旋桨叶片。 每对螺旋桨叶片包括第一螺旋桨叶片和第二螺旋桨叶片,所述第一螺旋桨叶片和第二螺旋桨叶片围绕螺旋桨轮毂的圆周彼此沿直径相对地布置。 每对螺旋桨叶片与相邻的一对螺旋桨叶片成角度地设置,使得角度小于螺旋桨叶片周围均匀分布的角度。