HYDRAULIC ACTUATOR FOR TRANSMISSIONS HAVING REDUCED NOISE
    1.
    发明申请
    HYDRAULIC ACTUATOR FOR TRANSMISSIONS HAVING REDUCED NOISE 有权
    具有减少噪声的传动液压致动器

    公开(公告)号:US20090241714A1

    公开(公告)日:2009-10-01

    申请号:US12056004

    申请日:2008-03-26

    IPC分类号: B60K17/10 B60K20/02

    摘要: The present invention provides a three position hydraulic piston assembly for a gear ratio change mechanism for a transmission exhibiting reduced gear shift noise. The three position hydraulic piston assembly includes a master piston and motion retarding assemblies that act near both travel limits of the master piston. The master piston includes symmetrical passageways that provide hydraulic fluid flow to small chambers at each end of the piston that are closed off as the piston approaches its travel limits. Hydraulic fluid trapped in the chambers decelerates the piston and is bled off through an orifice allowing the piston to reach its travel limit and quickly and quietly engage a gear ratio.

    摘要翻译: 本发明提供一种用于变速器变速机构的三位液压活塞组件,其具有减小的换档噪音。 三位置液压活塞组件包括主活塞和运动阻尼组件,其在主活塞的两个运行极限附近作用。 主活塞包括对称通道,其提供液压流体流动到在活塞的每个端部处的小室,当活塞接近其行程极限时,该活塞被封闭。 捕集在室中的液压流体使活塞减速,并通过孔口流出,允许活塞达到其行程极限,并快速且安静地接合传动比。

    Synchronizer actuating system with selectives
    2.
    发明授权
    Synchronizer actuating system with selectives 有权
    同步器动作系统与选择

    公开(公告)号:US08117935B2

    公开(公告)日:2012-02-21

    申请号:US12174275

    申请日:2008-07-16

    IPC分类号: F16H59/00

    摘要: A synchronizer actuating system with selectives for use in dual clutch transmission is provided. The synchronizer actuating system includes an apply finger and a fork mounted on a shift rail. The fork grips a synchronizer sleeve that supports a synchronizer. The synchronizer is moveable to a neutral position. A three area piston assembly is operable to engage and actuate the apply finger. The three area piston assembly includes a hydraulic neutral position. A selective element is coupled to the synchronizer actuating system to calibrate the hydraulic neutral position of the three area piston assembly to the neutral position of the synchronizer sleeve.

    摘要翻译: 提供了一种具有用于双离合器传动装置的选择装置的同步器致动系统。 同步器致动系统包括施加手指和安装在换档导轨上的叉。 叉子夹着支撑同步器的同步器套筒。 同步器可移动到中立位置。 三面活塞组件可操作以接合并致动应用手指。 三区域活塞组件包括液压中立位置。 选择元件联接到同步器致动系统以将三区域活塞组件的液压中立位置校准到同步器套筒的中间位置。

    Hydraulic actuator for transmissions having reduced noise
    3.
    发明授权
    Hydraulic actuator for transmissions having reduced noise 有权
    具有减少噪音的传动液压执行机构

    公开(公告)号:US08065930B2

    公开(公告)日:2011-11-29

    申请号:US12056004

    申请日:2008-03-26

    IPC分类号: B60K17/10 F15B15/22

    摘要: The present invention provides a three position hydraulic piston assembly for a gear ratio change mechanism for a transmission exhibiting reduced gear shift noise. The three position hydraulic piston assembly includes a master piston and motion retarding assemblies that act near both travel limits of the master piston. The master piston includes symmetrical passageways that provide hydraulic fluid flow to small chambers at each end of the piston that are closed off as the piston approaches its travel limits. Hydraulic fluid trapped in the chambers decelerates the piston and is bled off through an orifice allowing the piston to reach its travel limit and quickly and quietly engage a gear ratio.

    摘要翻译: 本发明提供一种用于变速器变速机构的三位液压活塞组件,其具有减小的换档噪音。 三位置液压活塞组件包括主活塞和运动阻尼组件,其在主活塞的两个运行极限附近作用。 主活塞包括对称通道,其提供液压流体流动到在活塞的每个端部处的小室,当活塞接近其行程极限时,该活塞被封闭。 捕集在室中的液压流体使活塞减速,并通过孔口流出,允许活塞达到其行程极限,并快速且安静地接合传动比。

    SYNCHRONIZER ACTUATING SYSTEM WITH SELECTIVES
    4.
    发明申请
    SYNCHRONIZER ACTUATING SYSTEM WITH SELECTIVES 有权
    具有选择性的同步启动系统

    公开(公告)号:US20090031836A1

    公开(公告)日:2009-02-05

    申请号:US12174275

    申请日:2008-07-16

    IPC分类号: F16H3/38

    摘要: A synchronizer actuating system with selectives for use in dual clutch transmission is provided. The synchronizer actuating system includes an apply finger and a fork mounted on a shift rail. The fork grips a synchronizer sleeve that supports a synchronizer. The synchronizer is moveable to a neutral position. A three area piston assembly is operable to engage and actuate the apply finger. The three area piston assembly includes a hydraulic neutral position. A selective element is coupled to the synchronizer actuating system to calibrate the hydraulic neutral position of the three area piston assembly to the neutral position of the synchronizer sleeve.

    摘要翻译: 提供了一种具有用于双离合器传动装置的选择装置的同步器致动系统。 同步器致动系统包括施加手指和安装在换档导轨上的叉。 叉子夹着支撑同步器的同步器套筒。 同步器可移动到中立位置。 三面活塞组件可操作以接合并致动应用手指。 三区域活塞组件包括液压中立位置。 选择元件联接到同步器致动系统以将三区域活塞组件的液压中立位置校准到同步器套筒的中间位置。