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    • 51. 发明授权
    • Steering damper system
    • 方向阻尼系统
    • US06742794B2
    • 2004-06-01
    • US10321696
    • 2002-12-18
    • Osamu BunyaTakehiko NanriKanji HayashiTakeshi Wakabayashi
    • Osamu BunyaTakehiko NanriKanji HayashiTakeshi Wakabayashi
    • B62K2112
    • F16F9/466B62K21/08F16F9/125
    • A liquid pressure type steering damper system for generating a damping force for preventing a handle from being swung due to a kick-back upon a disturbance wherein the generation of the damping force is nonlinear so that the steering angle would not be enlarged so much even if the kick-back becomes greater. A liquid pressure type steering damper is provided with a restriction passage for a working liquid and a solenoid-type control valve for varying the passage sectional area of the restriction passage. A needle portion is formed at the tip end of a plunger constituting the solenoid valve and is made to advance and retract in a restriction portion connected to a bypass passage. An annular gap passage is formed between the needle portion and the inside wall of the restriction portion so that, when the needle portion advances or retracts in proportion to the steering speed of a front wheel steering system, the clearance area of the gap passage is varied in the manner of a quadric curve in relation to the stroke amount of the needle portion, whereby the generation of the damping force is rapidly increased in the manner of a quadric curve. In addition, an upper limit of the damping force is restricted by an electromagnetic force of the solenoid valve.
    • 一种用于产生阻尼力的液压式转向阻尼器系统,其中阻尼力的产生由于阻尼力的产生而导致的防止手柄摆动,因此阻尼力的产生是非线性的,使得即使 反弹变得更大。 液压式转向阻尼器设置有用于工作液体的限制通道和用于改变限制通道的通道截面面积的螺线管式控制阀。 在构成电磁阀的柱塞的前端形成有针部,并且在与旁通通路连接的限制部中前进和后退。 在针部和限制部的内壁之间形成环状的间隙通路,使得当针部与前轮转向系统的转向速度成比例地前进或后退时,间隙通道的间隙区域变化 以相对于针部的行程量的二次曲线的方式,以二次曲线的方式快速地增加阻尼力的产生。 此外,阻尼力的上限受到电磁阀的电磁力的限制。