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    • 1. 发明申请
    • FOUR-SPEED MOTORCYCLE TRANSMISSION
    • 四速摩托车传动
    • WO2017021367A1
    • 2017-02-09
    • PCT/EP2016/068326
    • 2016-08-01
    • PIAGGIO & C. SPA
    • NESTI, PaoloMARIOTTI, Walter
    • F16H3/089F16H3/10F16H37/02B62M7/12
    • F16H37/02B62K2202/00B62M7/12F16H3/089F16H3/10F16H2200/0043
    • A four-speed transmission (1) for motorcycles has performances similar to those of a continuously variable transmission but, at the same time, a high yield and an easy and automatic operation and it comprises: a crankshaft (2) with a first and a second pulley (9, 10) mounted thereon; a primary shaft (3), with third and fourth pulley (10, 14) and a first and a second gear (18, 19) mounted thereon; transmission belts (11, 13) connecting said pulleys for the transmission of the first and the second speed and of the third and the fourth speed respectively; a secondary shaft (4) with a third and a fourth gear (20, 21) engaged with said first and second gear (18, 19) for transmitting the first and the third speed, and the second and the fourth speed respectively; a first synchronizer (16), which activates the transmission of the third and the fourth speed; and a second actuated synchronizer (17), actuating the transmission of the second and the fourth speed; wherein a first and a second free wheel (15, 22) can release the transmission of the third and the fourth speed and of the first and third speed respectively.
    • 用于摩托车的四速变速器(1)具有与无级变速器相似的性能,同时具有高产量和易于自动的操作,并且其包括:具有第一和第二速度的曲轴(2) 安装在其上的第二滑轮(9,10) 主轴(3),其具有第三和第四滑轮(10,14)和安装在其上的第一和第二齿轮(18,19); 传动皮带(11,13),分别连接所述皮带轮以传输第一和第二速度以及第三速度和第四速度; 副轴(4),具有与所述第一和第二齿轮(18,19)啮合的第三和第四齿轮(20,21),用于分别传递第一和第三速度以及第二速度和第四速度; 第一同步器(16),其激活第三和第四速度的传输; 和第二致动同步器(17),致动所述第二和第四速度的传动; 其中第一和第二自由轮(15,22)可以分别释放第三速度和第四速度以及第一和第三速度的传动。