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    • 9. 发明授权
    • Clutch hydraulic mechanism
    • 离合器液压机构
    • US06889805B2
    • 2005-05-10
    • US10202709
    • 2002-07-24
    • Hideo NakayamaMamoru KobayashiEiichi Sakai
    • Hideo NakayamaMamoru KobayashiEiichi Sakai
    • F16D48/02F16H61/02F16H61/06B60K41/22
    • F16D48/02F16D25/14F16D48/0206F16D48/068F16D2048/0203F16D2048/0209F16D2048/0221F16D2500/1112F16D2500/30805F16D2500/50293F16H61/0272F16H61/067
    • A check valve is installed in a hydraulic line for hydraulic oil to be fed to a forward movement hydraulic clutch, while an accumulator for accumulating some amount of the hydraulic oil fed to the hydraulic clutch is installed between the check valve and the hydraulic clutch. Further installed is a control spool that is operated by the hydraulic oil fed to the forward movement hydraulic clutch and that cooperates with the check valve to hold the hydraulic oil accumulated in the accumulator. According to this arrangement, even if the oil pressure drops momentarily due to a speed gear shift, the pressure for the hydraulic clutch before the gear shift is held by the hydraulic oil accumulated in the accumulator. Thus, a delay in torque restoration due to a slip of the hydraulic clutch can be eliminated, so that an operator can be freed from having a feeling of torque loss or a shock, and a feeling of uneasiness such as a feeling of reversing on an uphill slope, during the gear shift.
    • 止回阀安装在用于液压油的液压管路中以供给前进液压离合器,而在止回阀和液压离合器之间安装有用于积蓄供给液压离合器的一些液压油的蓄能器。 进一步安装的是控制阀芯,其由供给到前进液压离合器的液压油操作,并且与止回阀配合以保持积聚在蓄能器中的液压油。 根据该结构,即使油压由于变速而暂时下降,变速前的液压离合器的压力由积存在蓄能器中的液压油保持。 因此,可以消除由于液压离合器的滑动导致的转矩恢复的延迟,使得操作者能够避免扭矩损失或冲击的感觉,以及不舒服的感觉 上坡时,换档期间。