Transmission clutches
    2.
    发明授权
    Transmission clutches 有权
    传动离合器

    公开(公告)号:US07810622B2

    公开(公告)日:2010-10-12

    申请号:US11060076

    申请日:2005-02-17

    IPC分类号: F16D13/72

    摘要: A transmission includes first and second clutch members rotatable about the same axis. An axial groove is formed in one of the members to distribute lubricating fluid to the other member. Preferably, clutch plates with radial grooves extend between the clutch members. Fluid flows from the axial groove through the radial groove and across faces of the clutch plates to separate the plates during disengagement in order to minimize spin losses.

    摘要翻译: 变速器包括可围绕同一轴线旋转的第一和第二离合器构件。 在一个构件中形成轴向槽,以将润滑流体分配到另一个构件。 优选地,具有径向槽的离合器片在离合器构件之间延伸。 流体从轴向槽流过径向凹槽并跨越离合器板的表面,以在分离期间分离板,以使旋转损失最小化。

    CLUTCH EXHAUST ASSEMBLY AND METHOD
    3.
    发明申请
    CLUTCH EXHAUST ASSEMBLY AND METHOD 有权
    离合器排气装置和方法

    公开(公告)号:US20080223685A1

    公开(公告)日:2008-09-18

    申请号:US11685963

    申请日:2007-03-14

    IPC分类号: F16D25/12

    CPC分类号: F16D25/123

    摘要: An assembly and method is provided for reducing clutch wear due to centrifugal apply pressure within a clutch-apply cavity. The assembly comprises a rotatable clutch housing, a clutch-apply piston disposed within a clutch-apply cavity, and a balance piston. The balance and apply pistons define a balance cavity including a liquid fill channel and a dedicated air exhaust channel having a control radius configured to at least partially offset or compensate for the centrifugal apply force generated within the clutch-apply cavity when the clutch assembly rotates. The method includes configuring the balance cavity with an exhaust channel for exhausting fluid, and providing the exhaust channel with a control radius determined by the innermost radius of rotating fluid within the balance cavity as measured with respect to the centerline of rotation of the clutch assembly, the control radius being suitable for exhausting any excess of centrifugal balance force over centrifugal apply force.

    摘要翻译: 提供了一种组件和方法,用于减少由于离合器施加空腔内的离心施加压力引起的离合器磨损。 组件包括可旋转离合器壳体,设置在离合器施加腔内的离合器施加活塞和平衡活塞。 平衡和施加活塞限定了包括液体填充通道和专用排气通道的平衡腔,其具有被配置为当离合器组件旋转时至少部分地偏置或补偿在离合器施加空腔内产生的离心施加力的控制半径。 该方法包括用平衡空腔配置排气通道,用于排出流体,以及为排气通道提供由相对于离合器组件的旋转中心线测量的由平衡腔内的旋转流体的最内半径确定的控制半径, 控制半径适用于通过离心施加力排出任何过量的离心平衡力。

    Clutch exhaust assembly and method
    4.
    发明授权
    Clutch exhaust assembly and method 有权
    离合器排气总成及方法

    公开(公告)号:US07802667B2

    公开(公告)日:2010-09-28

    申请号:US11685963

    申请日:2007-03-14

    IPC分类号: F16D25/12 F16D25/0638

    CPC分类号: F16D25/123

    摘要: An assembly and method is provided for reducing clutch wear due to centrifugal apply pressure within a clutch-apply cavity. The assembly comprises a rotatable clutch housing, a clutch-apply piston disposed within a clutch-apply cavity, and a balance piston. The balance and apply pistons define a balance cavity including a liquid fill channel and a dedicated air exhaust channel having a control radius configured to at least partially offset or compensate for the centrifugal apply force generated within the clutch-apply cavity when the clutch assembly rotates. The method includes configuring the balance cavity with an exhaust channel for exhausting fluid, and providing the exhaust channel with a control radius determined by the innermost radius of rotating fluid within the balance cavity as measured with respect to the centerline of rotation of the clutch assembly, the control radius being suitable for exhausting any excess of centrifugal balance force over centrifugal apply force.

    摘要翻译: 提供了一种组件和方法,用于减少由于离合器施加空腔内的离心施加压力引起的离合器磨损。 组件包括可旋转离合器壳体,设置在离合器施加腔内的离合器施加活塞和平衡活塞。 平衡和施加活塞限定了包括液体填充通道和专用排气通道的平衡腔,其具有被配置为当离合器组件旋转时至少部分地偏置或补偿在离合器施加空腔内产生的离心施加力的控制半径。 该方法包括用平衡空腔配置排气通道,用于排出流体,以及为排气通道提供由相对于离合器组件的旋转中心线测量的由平衡腔内的旋转流体的最内半径确定的控制半径, 控制半径适用于通过离心施加力排出任何过量的离心平衡力。

    Method and apparatus for cooling and lubricating a hybrid transmission
    5.
    发明授权
    Method and apparatus for cooling and lubricating a hybrid transmission 有权
    用于冷却和润滑混合变速器的方法和装置

    公开(公告)号:US07247112B2

    公开(公告)日:2007-07-24

    申请号:US11060075

    申请日:2005-02-17

    IPC分类号: F16H3/72 F16H57/04

    摘要: A method and apparatus for efficiently cooling and lubricating rotating components in a hybrid transmission is provided. By efficiently managing cooling flow to and between the rotating elements, flow requirements and associated pumping requirements within the drive unit are minimized. In addition, by providing a method for placing the fluid directly on the required components, spin losses associated with component contact with stray oil are reduced. Combined, the reduction in pumping and spin losses create a more efficient drive unit and an overall more efficient hybrid drive system which directly leads to higher fuel economy.

    摘要翻译: 提供一种用于有效地冷却和润滑混合变速器中的旋转部件的方法和装置。 通过有效地管理到旋转元件之间和之间的冷却流,驱动单元内的流量要求和相关联的泵送需求被最小化。 此外,通过提供将流体直接放置在所需组分上的方法,减少了与杂散油的组分接触相关的旋转损失。 结合起来,减少泵送和旋转损耗创造出更有效的驱动单元和整体更高效的混合动力驱动系统,其直接导致更高的燃料经济性。

    FINE DISSECTION ELECTROSURGICAL DEVICE
    6.
    发明申请
    FINE DISSECTION ELECTROSURGICAL DEVICE 有权
    精细分离静电设备

    公开(公告)号:US20120203219A1

    公开(公告)日:2012-08-09

    申请号:US13023603

    申请日:2011-02-09

    IPC分类号: A61B18/14 A61B18/18

    摘要: An electrosurgical wand. At least some of the illustrative embodiments are electrosurgical wands including an elongate shaft that defines a handle end and a distal end, a first discharge aperture on the distal end of the elongate shaft, a first active electrode of conductive material disposed on the distal end of the elongate shaft, the first active electrode has an edge feature, a first return electrode of conductive material disposed a substantially constant distance from the first active electrode, and an aspiration aperture on the distal end of the elongate shaft fluidly coupled to a second fluid conduit.

    摘要翻译: 电外科手杖 至少一些说明性实施例是电外科手术杆,其包括限定手柄端和远端的细长轴,在细长轴的远端上的第一排放孔,设置在第一活动电极的远端 所述细长轴,所述第一有源电极具有边缘特征,所述第一导电材料的返回电极与所述第一有源电极设置成基本上恒定的距离,并且所述细长轴的远端上的抽吸孔流体地联接到第二流体导管 。

    Method and apparatus to control operation of a hydraulic pump for an electro-mechanical transmission
    7.
    发明授权
    Method and apparatus to control operation of a hydraulic pump for an electro-mechanical transmission 有权
    用于控制用于机电传动的液压泵的操作的方法和装置

    公开(公告)号:US08170762B2

    公开(公告)日:2012-05-01

    申请号:US12250296

    申请日:2008-10-13

    IPC分类号: F04B49/00

    摘要: A method for controlling a hydraulic flow within a powertrain comprising an electromechanical transmission mechanically-operatively coupled to an engine adapted to selectively transmit power to an output, wherein the transmission utilizes a hydraulic control system serving a number of hydraulic oil consuming functions includes monitoring minimum hydraulic pressure requirements for each of the functions, determining a requested hydraulic pressure based upon the monitoring minimum hydraulic pressure requirements and physical limits of the hydraulic control system including a maximum pressure, determining a desired flow utilizing a hydraulic control system flow model based upon the requested hydraulic pressure, and utilizing the desired flow to control an auxiliary hydraulic pump.

    摘要翻译: 一种用于控制动力系中的液压流动的方法,包括机械传动机械操作地联接到适于选择性地将动力传递到输出的发动机的机电传动,其中所述变速器利用用于多个液压油消耗功能的液压控制系统包括监测最小液压 对每个功能的压力要求,基于监测最小液压要求和液压控制系统的物理极限(包括最大压力)确定所请求的液压压力,使用基于所要求的液压的液压控制系统流量模型确定期望的流量 并且利用所需的流量来控制辅助液压泵。

    Hydraulic clutch control mechanism for a multi-mode hybrid transmission
    8.
    发明授权
    Hydraulic clutch control mechanism for a multi-mode hybrid transmission 有权
    用于多模混合变速器的液压离合器控制机构

    公开(公告)号:US08100803B2

    公开(公告)日:2012-01-24

    申请号:US12250919

    申请日:2008-10-14

    IPC分类号: F16H31/00

    摘要: An electrically variable transmission (EVT) selectively establishes various EVT modes and a neutral mode. The EVT includes a source of pressurized fluid, fluid-actuated clutches, various solenoid-actuated valves including trim valves and blocking valves adapted to control a flow of pressurized fluid to the clutches to establish the transmission operating modes, and an electronic control unit (ECU). The ECU actuates different combinations of the solenoid-actuated valves to establish the different transmission modes. The solenoid-actuated valves are configured in such a manner as to provide the EVT with one or more default operating modes in the event the ECU temporarily loses electrical power. Depending on the particular configuration, the default modes can be the neutral mode alone, or the neutral mode combined with one or more of the EVT modes, with the EVT modes enabled by providing one or both of the blocking valves with a latching feature.

    摘要翻译: 电动变速器(EVT)选择性地建立各种EVT模式和中立模式。 EVT包括加压流体源,流体驱动离合器,各种电磁致动阀,包括调节阀和阻塞阀,其适于控制加压流体流到离合器以建立变速器操作模式,以及电子控制单元(ECU )。 ECU启动电磁阀的不同组合以建立不同的传动模式。 电磁阀被构造成在ECU暂时失去电力的情况下向EVT提供一个或多个默认操作模式。 根据具体配置,默认模式可以是单独的空档模式,也可以是与一种或多种EVT模式组合的中性模式,通过为一个或两个阻塞阀提供锁定功能,EVT模式启用。