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    • 9. 发明申请
    • HYDROMECHANICAL TRANSMISSION
    • 水力传动
    • WO2006132986A3
    • 2007-01-18
    • PCT/US2006021495
    • 2006-06-02
    • CATERPILLAR INCCRONIN MICHAEL GFABRY MARK D
    • CRONIN MICHAEL GFABRY MARK D
    • F16H37/08F16H47/04
    • F16H47/04F16H61/0403F16H2037/088F16H2037/0886
    • Torque split continuously variable transmission (10) (CVT) with a variator (14) (e.g. hydrostatic transmission) in one of the torque paths. A further mechanical transmission (16) is arranged as a group gearbox (16) behind the CVT (10). Problem to be solved: Avoiding fluid drag losses in the multiple-disc clutches of the group gearbox (16). Solution: The CTV (10) provides two forward modes and two reverse modes, which are activated by two multiple-disc clutches (40, 42) and synchronizers (36, 38) (synchronized dog clutches). Each synchronizer (36, 38) is mounted on the same shaft (72, 74) as the discs (78, 80) of respectively one of the multiple-disc clutches (40, 42), thereby enabling the multipledisc clutches (40, 42) to rotate in their disengaged stage without difference in rotational speed. Therefore, fluid drag losses in the multiple-disc clutches (40,42) are substantially zero.
    • 在一个扭矩路径中,通过变速器(14)(例如静液压传动)将无级变速器(10)(CVT)扭矩分离。 另外的机械传动装置(16)被布置为CVT(10)后面的组齿轮箱(16)。 要解决的问题:避免组齿轮箱(16)的多圆盘离合器中的流体阻力损失。 解决方案:CTV(10)提供两个正向模式和两个反向模式,它们由两个多盘离合器(40,42)和同步器(36,38)(同步狗离合器)激活。 每个同步器(36,38)安装在与多个盘式离合器(40,42)中的一个的盘(78,80)相同的轴(72,74)上,从而使得多重离合器(40,42) )在其脱离阶段旋转而没有旋转速度的差异。 因此,多盘离合器(40,42)中的流体阻力损失基本为零。