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    • 1. 发明申请
    • Transmission having a backup latch mechanism
    • 传输具有备用锁定机构
    • US20070137973A1
    • 2007-06-21
    • US11311304
    • 2005-12-20
    • Bradley McCunnKevin MeyerJames Landes
    • Bradley McCunnKevin MeyerJames Landes
    • B60K23/02F16D25/10
    • F16D48/04F16D48/0206F16D2048/0203F16D2048/0281F16D2500/5114F16H61/12F16H2061/1232F16H2061/1236F16H2061/1268F16H2061/1292Y10T74/19251
    • A transmission for a work machine is disclosed. The transmission has a source of pressurized fluid, a low pressure reservoir, a plurality of hydraulically actuated clutches, a first plurality of valve mechanisms, and a second plurality of valve mechanisms. Each of the first plurality of valve mechanisms is associated with one of the plurality of hydraulically actuated clutches and configured to selectively fill and drain the associated one of the plurality of hydraulically actuated clutches. Each of the second plurality of valve mechanisms is associated with one of the plurality of hydraulically actuated clutches and configured to selectively fill and drain the associated one of the plurality of hydraulically actuated clutches. The transmission also includes a master latch mechanism in fluid communication with only the second plurality of valve mechanisms. The master latch mechanism is configured to selectively affect movement of the second plurality of valve mechanisms in response to an electrical power failure.
    • 公开了一种用于工作机械的变速器。 变速器具有加压流体源,低压储存器,多个液压驱动离合器,第一多个阀机构和第二多个阀机构。 第一多个阀机构中的每一个与多个液压驱动的离合器中的一个相关联,并且构造成选择性地填充和排出多个液压驱动的离合器中的相关联的一个。 第二多个阀机构中的每一个与多个液压驱动的离合器中的一个相关联,并且构造成选择性地填充和排出多个液压驱动的离合器中的相关联的一个。 传动装置还包括仅与第二多个阀机构流体连通的主闩锁机构。 主闩锁机构构造成响应于电力故障选择性地影响第二多个阀机构的运动。