公开(公告)号：US20130296096A1

公开(公告)日：2013-11-07

申请号：US13794585

申请日：2013-03-11

申请人： Torotrak (Development) Limited

发明人： Christopher John GREENWOOD ,  Philip Duncan Winter ,  David Burt

IPC分类号： F16H15/54

CPC分类号： F16H15/54 ,  F16H37/086 ,  F16H2037/104 ,  Y10T74/19074

摘要： The invention is concerned with a continuously variable transmission incorporating a variator of the type having at least two co-axial races (D1-D4) between which drive is transferred at a continuously variable variator ratio. The variator races are mounted for rotation about a variator shaft (15). The transmission has a layshaft (18) which is laterally separated from the variator shaft. It has two epicyclic gears. A splitter epicyclic (14) has an input member driven from the transmission input (10) and two output members arranged respectively to drive the layshaft and the variator shaft. A recirculater epicyclic has first and second input members for coupling respectively to the variator shaft and to the layshaft and a recirculater output member. An arrangement of clutches is provided for selectively engaging any of at least three regimes. In one regime the recirculater output member drives the transmission output. In another the layshaft drives the transmission output. In a third, the variator shaft drives the transmission output. The arrangement of the components is such that the variator shaft is co-axial with the transmission output, the recirculater epicyclic, a first coupling, between the recirculater output member and the transmission output, which serves to drive the transmission output in the first regime, and a second coupling, between the variator shaft and the transmission output, which serves to drive the transmission output in the third above-mentioned regime.

摘要翻译： 本发明涉及一种无级变速器，其包括具有至少两个同轴轨道（D1-D4）的变速器，在该变速器之间驱动以连续可变的变速比传递。 变速器座圈安装为围绕变速器轴（15）旋转。 变速器具有与变速器轴横向分离的副轴（18）。 它有两个行星齿轮。 分流器行星轮（14）具有从变速器输入（10）驱动的输入构件和分别布置成驱动副轴和变速器轴的两个输出构件。 循环器行星齿轮具有第一和第二输入构件，用于分别连接到变速器轴和副轴以及再循环输出构件。 提供了离合器的布置，用于选择性地接合至少三个方案中的任何一个。 在一个方案中，循环器输出构件驱动变速器输出。 在另一个中，副轴驱动变速器输出。 三分之一的变频器轴驱动变速器输出。 组件的布置使得变换器轴与传动装置输出同步，即循环器输出构件和变速器输出之间的再循环器行星齿轮，第一联接件，其用于在第一方式中驱动变速器输出， 以及在变换器轴和变速器输出之间的第二联接，其用于在第三上述状态下驱动变速器输出。