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    • 17. 发明申请
    • AXIAL FAN
    • 轴风扇
    • WO1998021482A1
    • 1998-05-22
    • PCT/JP1997004058
    • 1997-11-07
    • DAIKIN INDUSTRIES, LTD.SATO, SeijiOHNISHI, TadashiZHENG, Zhiming
    • DAIKIN INDUSTRIES, LTD.
    • F04D29/38
    • F04D29/384
    • An axial fan which comprises a plurality of vanes (2, 2, ...) provided on an outer periphery of a hub. A cross section of each vane (2) at any distance from the center of the fan is shaped in such a manner that a vane thickness gradually increases from a vane leading edge (2a) and gradually decreases toward a vane trailing edge (2b). L/L0 is set in the range of 0.27 to 0.35 where L designates a camber line length from the vane leading edge (2a) at a position where the vane thickness is maximum, and L0 designates a camber line length between the vane leading edge (2a) and the vane trailing edge (2b) at the above any distance. Thus an aerodynamic performance is prevented from being reduced even if an inflow angle of air relative to the vane (2) is varied.
    • 一种轴流风扇,包括设置在轮毂外周上的多个叶片(2,2)。 每个叶片(2)的与风扇中心任何距离的横截面成形为使得叶片厚度从叶片前缘(2a)逐渐增加并且朝向叶片后缘(2b)逐渐减小。 L / L0设定在0.27〜0.35的范围内,其中L表示在叶片厚度最大的位置处来自叶片前缘(2a)的弯度线长度,L0表示叶片前缘( 2a)和叶片后缘(2b)处于上述任何距离处。 因此,即使空气相对于叶片(2)的流入角度变化,也防止空气动力学性能降低。
    • 18. 发明申请
    • CAM MOTOR DEVICE
    • CAM电机装置
    • WO1998020255A1
    • 1998-05-14
    • PCT/JP1997003986
    • 1997-10-30
    • DAIKIN INDUSTRIES, LTD.SAKAI, ToshiyukiKOTAKE, YoichiroNARUSE, ToshihiroSUHARA, Masaaki
    • DAIKIN INDUSTRIES, LTD.
    • F03C01/36
    • F03C1/045
    • A cam motor device (A) comprises a plurality of cylinders (5, 5, ...) provided in a cylinder block (2) adapted to rotate together with an output shaft (10), and arranged radially in a direction perpendicular to a rotating axis (X), pistons (6) received in the respective cylinders and adapted to be reciprocatingly actuated by a working oil delivered from a distributing valve (7) to rotate the output shaft, and a change-over valve (9) for selectively performing switching connection of the respective cylinders to a working oil supply passage (81) and a discharge passage (82) through the distributing valve. When the change-over valve is at a low speed position, the working oil is supplied to and discharged from all the cylinders, and when the change-over valve is switched to a high speed position, the working oil is supplied to and discharged from a half of the cylinders and a pressure oil is supplied to the remaining half of the cylinders from a charge pump (16).
    • 凸轮电动机装置(A)包括设置在适于与输出轴(10)一起旋转的气缸体(2)中的多个气缸(5,5),并且沿垂直于 旋转轴线(X),容纳在各个气缸中的活塞(6),并且适于由从分配阀(7)输送的工作油往复地致动以旋转输出轴;以及转换阀(9),用于选择性地 通过分配阀进行各个气缸与工作油供给通路(81)和排出通路(82)的切换连接。 当转换阀位于低速位置时,工作油被供给到所有气缸并从所有气缸排出,当转换阀切换到高速位置时,工作油被供给和排出 一半的气缸和压力油从电荷泵(16)供应到剩余的一半气缸。