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    • 2. 发明申请
    • VARIABLE RATIO TRANSMISSION
    • 可变比率传输
    • US20100279813A1
    • 2010-11-04
    • US12663411
    • 2008-06-06
    • Raymond John HicksFrank Cunliffe
    • Raymond John HicksFrank Cunliffe
    • F16H48/06
    • F16H47/04F03D15/00F03D15/10F05B2210/16F05B2220/70642F05B2260/40311F05B2260/406F16H2037/102F16H2037/104Y02E10/722Y02E10/725
    • A variable ratio transmission is described having an infinitely variable ratio, for enabling or tidal turbine (10) or the like running at relatively low but continuously varying speeds, to drive smoothly a constant speed machine, such as a synchronous generator or the like, without excessive transient torques. A preferred transmission includes a primary differential gear train (120), having a driven input (50), and a driving output, wherein the ratio of the input speed to output speed is variable, and wherein said ratio is governed by the reaction torque provided by speed controlling gearing (150) within the primary differential (120), the transmission including also a secondary differential gear train (220), which is in rotational communication with the input (50) via a first route (115), and is in rotational communication with the speed controlling gearing (150) via a second different route (125), wherein the secondary differential gear train includes two parallel power paths P′ and P″, one path including a hydraulic bypass having two hydraulic units (180, 500) in a hydraulic circuit, the power transmitted and direction of power transmitted in the hydraulic circuit of the bypass path P′ being selectively variable in use to vary the speed in path P″, thereby to alter the power in the second route and to alter the reaction torque of the speed controlling gearing and thereby to govern said ratio. The transmission makes use of the first and second routes for the whole input speed range.
    • 描述了具有无级变速比的可变比变速器,用于在相对低但连续变化的速度下运行的启用或潮汐涡轮机(10)等,以平稳地驱动诸如同步发电机等的恒速机器,而不需要 瞬态转矩过大。 优选的变速器包括具有从动输入(50)的主差速齿轮系(120)和驱动输出,其中输入速度与输出速度的比值是可变的,并且其中所述比例由所提供的反作用转矩 通过在初级差速器(120)内速度控制齿轮(150),变速器还包括经由第一路线(115)与输入(50)旋转连通的次级差速齿轮系(220) 经由第二不同路径(125)与速度控制传动装置(150)的旋转通信,其中二次差动齿轮系包括两个平行的动力通道P'和P“,一个路径包括具有两个液压单元(180,500 ),在旁路路径P'的液压回路中传递的动力传递方向和使用中的选择性变化,使路径P“中的速度变化,从而改变在第 并且改变速度控制传动装置的反作用扭矩,从而控制所述比例。 传输在整个输入速度范围内使用第一和第二路由。