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    • 2. 发明申请
    • Contiunously variable transmissions
    • 无差异变速箱
    • US20050009664A1
    • 2005-01-13
    • US10499925
    • 2003-01-24
    • Christopher GreenwoodAndrew DefrietasBrian DutsonIan Cornwell
    • Christopher GreenwoodAndrew DefrietasBrian DutsonIan Cornwell
    • F16H15/38
    • F16H15/38
    • There is disclosed a continuously variable ratio transmission unit having first and second discs mounted for rotation about a main axis, a toroidal cavity being defined between the discs by facing surfaces thereof and containing a plurality of rollers which serve to transmit drive from one disc to the other, each roller being coupled to a respective carriage through a respective bearing arrangement and each carriage being coupled at a first extremity to a first linear actuator and at a second extremity to a second linear actuator whereby the carriage is movable along a direction transverse to the main axis, the first and second linear actuators working in opposition to exert an adjustable net force on the carriage, the orientation of the carriage being constrained and the bearing arrangement being such as to enable the roller to rotate about a roller axis to thereby transmit drive from one of the discs to the other and also being such as to enable the roller axis to precess relative to the carriage to vary the transmission ratio.
    • 公开了一种无级变速传动单元,其具有安装成用于围绕主轴旋转的第一和第二盘,环形空腔通过其面对面限定在盘之间,并且包含多个辊,用于将驱动从一个盘传送到 另一方面,每个辊通过相应的轴承装置联接到相应的托架,并且每个托架在第一末端处联接到第一线性致动器,并且在第二末端耦合到第二线性致动器,由此托架可沿着横向于 主轴线,第一和第二线性致动器相对于在滑架上施加可调节的净力,托架的定向受到限制,并且轴承装置使得辊能够绕辊轴旋转,从而传递驱动 从一个盘到另一个,并且还能够使辊轴相对于前进 车厢改变传动比。
    • 3. 发明申请
    • Continuously variable ratio transmission system
    • 连续可变比传动系统
    • US20060142110A1
    • 2006-06-29
    • US10515803
    • 2003-05-28
    • Christopher GreenwoodThomas Fellows
    • Christopher GreenwoodThomas Fellows
    • F16H37/02
    • F16H37/086F16H2037/0886
    • A multi-regime continuously variable ratio transmission system has coaxial system input and output shafts (16, 24), a continously variable ratio transmission unit (V) connected coaxially to the system input shaft (16) and having a coaxial variator output shaft (18) and a mixing epicyclic gear train (E1) having an input sun gear (S1) drivably connected to the variator ouput shaft (18), a planet carrier (C1) drivably connected to the system input shaft (16) and a planet gear (P1) mounted on the planet carrier ((C1). The planet gear (P1) drives a first intermediate output shaft (22) arranged coaxially with the system input shaft (16) and selectively connectable to the system output shaft via a first clutch (H) in high-regime operation of the transmission. The planet gear (P1) also provides the input for a second epicyclic gear train (E2) having an output (C2) which is selectively connectable to the system output shaft via a braking element (L) for low-regime operation of the transmission. The arrangement minimises the number of gear meshes, thereby minimising transmission losses and the absence of an annulus in the mixing epicyclic gear train (E1) allows more freedom in the choice of gear sizes, thereby permitting reduced gear speeds.
    • 多状态无级变速传动系统具有同轴系统输入和输出轴(16,24),与系统输入轴(16)同轴连接并具有同轴变换器输出轴(18)的连续可变比传动单元(V) )和具有可驱动地连接到变速器输出轴(18)的输入太阳齿轮(S1)的混合行星齿轮系(E 1),可驱动地连接到系统输入轴(16)的行星架(C 1)和 行星齿轮(P 1)驱动与系统输入轴(16)同轴设置的第一中间输出轴(22),并可选择性地连接到系统输出 行星齿轮(P 1)还为具有输出(C 2)的第二行星齿轮系(E 2)提供输入,该输出(C 2)可选择性地连接到 系统输出轴通过用于低制度的制动元件(L) 传输的操作。 该装置使齿轮啮合的数量最小化,从而最小化传动损失,并且在混合行星齿轮系(E 1)中不存在环形空间使齿轮尺寸的选择更加自由,从而允许减小齿轮速度。
    • 4. 发明申请
    • Continuously variable ratio transmission system
    • 连续可变比传动系统
    • US20070042856A1
    • 2007-02-22
    • US10561727
    • 2004-07-01
    • Christopher Greenwood
    • Christopher Greenwood
    • F16H37/02
    • F16H37/086F16H2037/0886
    • A multiple-regime continuously variable ratio transmission system has a system input shaft (I), a system output shaft (O) and a continuously variable ratio transmission unit (variator) connected to the system input shaft and having a variator output shaft. A first mixing epicyclec gear train (P1) having inputs drivably connected to the variator output shaft (V) and the system input shaft via a first clutch (H) and a second mixing epicyclic gear train having inputs drivably connected to the variator output shaft and the system input shaft has an output (28) connected to a third epicyclic gear train (E2) having an output which is selectively connectable to the to the system output shaft via a first braking element (L). A second braking element (B) is adapted to lock the output (28) of the second mixing epicyclic gear train in a stationary position.
    • 多系统无级变速传动系统具有系统输入轴(I),系统输出轴(O)和连接到系统输入轴的无级变速传动单元(变速器),并具有变速器输出轴。 具有通过第一离合器(H)可驱动地连接到变换器输出轴(V)和系统输入轴的输入的第一混合行星齿轮系(P 1)和具有可驱动地连接到变换器输出轴的输入的第二混合行星齿轮系 并且系统输入轴具有连接到具有经由第一制动元件(L)可选择地连接到系统输出轴的输出的第三行星齿轮系(E 2)的输出(28)。 第二制动元件(B)适于将第二混合行星齿轮系的输出(28)锁定在静止位置。