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9 条记录 (耗时 0.02 秒)

    Multi-speed split dual clutch transmission
    5.
    发明授权
    Multi-speed split dual clutch transmission 有权
    多速分离式双离合变速器

    公开(公告)号：US07846055B2

    公开(公告)日：2010-12-07

    申请号：US12028438

    申请日：2008-02-08

    申请人： David Earl Earhart

    发明人： David Earl Earhart

    IPC分类号： F16H37/04

    CPC分类号： F16H37/046 ,  F16H3/006 ,  F16H37/0833 ,  F16H2200/0065 ,  F16H2200/0095

    摘要： A transmission is provided having an input member, an output member, a split dual clutch assembly, two countershaft gearing arrangements, one planetary gear set, a plurality of interconnecting members, and a plurality of torque transmitting devices. Each of the countershaft gearing arrangements includes a plurality of co-planar gear sets. The torque transmitting devices include a combination of clutches, brakes, and synchronizers.

    摘要翻译： 提供一种变速器，其具有输入构件，输出构件，分离双离合器组件，两个中间轴传动装置，一个行星齿轮组，多个互连构件和多个扭矩传递装置。 每个中间轴传动装置包括多个共面齿轮组。 扭矩传递装置包括离合器，制动器和同步器的组合。

    Multi-speed countershaft transmission with a planetary gear set and method
    6.
    发明授权
    Multi-speed countershaft transmission with a planetary gear set and method 有权
    具有行星齿轮组和方法的多速中间轴传动

    公开(公告)号：US07604561B2

    公开(公告)日：2009-10-20

    申请号：US11626872

    申请日：2007-01-25

    申请人： David Earl Earhart

    发明人： David Earl Earhart

    IPC分类号： F16H37/02

    CPC分类号： F16H37/04 ,  F16H3/097 ,  Y10T74/19233

    摘要： A transmission is provided that combines first and second shaft members in a countershaft configuration with a planetary gear set and first and second head gear sets to provide ratios. Each of the shaft members includes gears in no more than four co-planar, intermeshing gear sets (and in some embodiments no more than three co-planar, intermeshing gear sets) and two sets of radially nested clutches, thus minimizing the overall length of the shaft members. At least one gear concentric with each shaft member is supported by a bearing on the adjacent gear rather than on the shaft member, thereby minimizing the weight of each shaft member. The transmission provides at least seven forward speed ratios and a reverse speed ratio and utilizes at most eight torque-transmitting mechanisms. A method of reducing the length and weight of a transmission package is also provided.

    摘要翻译： 提供了一种变速器，其将中间轴构造中的第一和第二轴构件与行星齿轮组和第一和第二头部齿轮组组合以提供比率。 每个轴构件包括不超过四个共面相互啮合的齿轮组（并且在一些实施例中不超过三个共面，相互啮合的齿轮组）和两组径向嵌套离合器的齿轮，因此使总体长度 轴构件。 与每个轴构件同心的至少一个齿轮由相邻齿轮上的轴承而不是轴构件支撑，从而最小化每个轴构件的重量。 变速器提供至少七个前进速度比和倒档速度，并且使用至多八个扭矩传递机构。 还提供了减小传输封装的长度和重量的方法。

    Multi-speed split dual clutch transmission
    7.
    发明授权
    Multi-speed split dual clutch transmission 有权

    公开(公告)号：US07837589B2

    公开(公告)日：2010-11-23

    申请号：US12028444

    申请日：2008-02-08

    申请人： David Earl Earhart

    发明人： David Earl Earhart

    IPC分类号： F16H3/44

    CPC分类号： F16H37/0833 ,  F16H3/006 ,  F16H37/046 ,  F16H2200/0065 ,  F16H2200/0095

    摘要： A transmission is provided having an input member, an output member, a split dual clutch assembly, two countershaft gearing arrangements, one planetary gear set, a plurality of interconnecting members, and a plurality of torque transmitting devices. Each of the countershaft gearing arrangements includes a plurality of co-planar gear sets. The torque transmitting devices include a combination of clutches, brakes, and synchronizers.

    Multi-speed split dual clutch transmission
    8.
    发明授权
    Multi-speed split dual clutch transmission 有权
    多速分离式双离合变速器

    公开(公告)号：US07798931B2

    公开(公告)日：2010-09-21

    申请号：US12028447

    申请日：2008-02-08

    申请人： David Earl Earhart

    发明人： David Earl Earhart

    IPC分类号： F16H3/44

    CPC分类号： F16H37/046 ,  F16H3/006 ,  F16H37/0833 ,  F16H2200/0065 ,  F16H2200/0095

    摘要： A transmission is provided having an input member, an output member, a clutch assembly, two countershaft gearing arrangements, one planetary gear set, a plurality of interconnecting members, and a plurality of torque transmitting devices. Each of the countershaft gearing arrangements includes a plurality of co-planar gear sets. The torque transmitting devices include a combination of clutches, brakes, and synchronizers.

    摘要翻译： 提供了一种变速器，其具有输入构件，输出构件，离合器组件，两个中间轴传动装置，一个行星齿轮组，多个互连构件和多个扭矩传递装置。 每个中间轴传动装置包括多个共面齿轮组。 扭矩传递装置包括离合器，制动器和同步器的组合。

    Split-Pressure Dual Pump Hydraulic Fluid Supply System for a Multi-Speed Transmission and Method
    9.
    发明申请
    Split-Pressure Dual Pump Hydraulic Fluid Supply System for a Multi-Speed Transmission and Method 有权
    用于多速传动和方法的分压双泵液压油供应​​系统

    公开(公告)号：US20080247882A1

    公开(公告)日：2008-10-09

    申请号：US11695890

    申请日：2007-04-03

    申请人： David Earl Earhart ,  Dane L. Rodgers

    发明人： David Earl Earhart ,  Dane L. Rodgers

    IPC分类号： F04B49/00 ,  F01C1/00 ,  F04B49/035 ,  F03C2/00

    CPC分类号： F04C2/102 ,  F04C2/3442 ,  F04C11/005 ,  F04C14/226 ,  F16H57/04

    摘要： A split-pressure, dual-pump system for supplying hydraulic fluid to a multi-speed transmission is provided. The system includes a low-pressure work circuit operatively connected to a fixed displacement pump, and a high-pressure work circuit operatively connected to a variable displacement pump. The system also includes a regulator valve fluidly coupled to the variable displacement pump via a decrease circuit and an overage circuit for regulating the flow of fluid to the high-pressure work circuit. The invention consists of separating the high-pressure needs of the system into a separate work circuit from the low-pressure needs of the system, and optimizing pump design separately for each work circuit to maximize transmission efficiency and reduce parasitic losses. A method of supplying hydraulic fluid to a multi-speed transmission at variable flow and pressure is also provided.

    摘要翻译： 提供了一种用于向多速变速器供应液压油的分压双泵系统。 该系统包括可操作地连接到固定排量泵的低压工作回路和可操作地连接到可变排量泵的高压工作回路。 该系统还包括调节阀，该调节阀通过减小电路流体耦合到可变排量泵，以及用于调节流体流向高压工作回路的过压回路。 本发明包括将系统的高压需求从系统的低压需求分离成单独的工作电路，并且为每个工作电路分别优化泵设计，以最大化传输效率并减少寄生损耗。 还提供了一种以可变流量和压力向多速变速器供应液压流体的方法。