Patent application number | Description | Published |
20100048346 | Multiple Speed Transmission Utilizing Co-Planar Gear Sets - A multiple speed power transmission, comprising an input shaft; a transmission case; a co-planar gear set; a rear epicyclic gearing assembly with four rotating members; a first clutch connecting the output of the co-planar gear set to the fourth rotating member; a second clutch connecting the output of the co-planar gear set to the first rotating member; a third clutch connecting the input shaft to the third rotating member; a first brake holding the fourth rotating member against rotation; a second brake holding the third rotating member against rotation; and an output shaft connected to the second rotating member. | 02-25-2010 |
20100197448 | INFINITELY VARIABLE TRANSMISSION WITH OFFSET OUTPUT SHAFT - An infinitely variable power transmission comprising an input shaft, a layshaft, a variator transmitting power from the input shaft to the layshaft, an output shaft, and an internal/external gear pair transmitting power from the layshaft to the output shaft. The output shaft axis may be offset a limited distance from the input shaft axis. | 08-05-2010 |
20110172051 | INFINITELY VARIABLE TRANSMISSION - An infinitely variable power transmission comprising an input shaft, a layshaft driven by the input shaft via internal/external gearing, a toroidal variator, and gearing and clutches which implement a low/reverse variable ratio mode and a high range variable ratio mode. An additional clutch and gearing implement an optional fixed ratio mode. | 07-14-2011 |
20120142485 | Planetary Power Transmission - A multiple speed power transmission comprises: an epicyclic gearing assembly comprising first, second, third, and fourth rotating members with linearly related speeds; a double pinion planetary gear set with grounded carrier and input driven sun gear; two brakes; four clutches; and specified interconnections. The brakes and clutches are operated in combinations of two to produce eight forward speed ratios and at least one reverse speed ratio. | 06-07-2012 |
20140045641 | MULTI-SPEED TRANSMISSION - A transmission gearing arrangement produces at least nine forward speed ratios and one reverse speed ratio by selective engagement of three shift elements in various combinations. One embodiment includes four simple planetary gear sets, four clutches, and two brakes. Another embodiment includes two axis transfer gear pairs, three simple planetary gear sets, four clutches, and two brakes. | 02-13-2014 |
20140179487 | Multiple Speed Transmission With Integrated Low Range - A transmission gearing arrangement includes four simple planetary gear sets, three brakes, and four rotating clutches. The brakes and clutches may be engaged in combinations of three to establish at least ten forward transmission ratios and at least three reverse transmission ratios. The lowest forward transmission ratio and lowest reverse transmission ratio may be used to implement a low range mode, obviating the need for a two speed transfer case. | 06-26-2014 |
20140256499 | MULTI-SPEED TRANSMISSION - A transmission gearing arrangement produces ten forward speed ratios and four reverse speed ratio by selective engagement of three shift elements in various combinations. Some embodiment includes four simple planetary gear sets and seven shift elements of which three or four are brakes. Another embodiment includes two axis transfer gear pairs in place of one of the planetary gear sets. One of the brakes is used only in reverse and may be a latch. | 09-11-2014 |
20140378270 | MULTI-SPEED TRANSMISSION - A family of transmission gearing arrangements provides a plurality of forward speed ratios and one or more reverse speed ratios by selective engagement of shift elements in various combinations. Three simple planetary gear sets are located on the input axis. One of the simple planetary gear sets may have either a split-ring arrangement in which two ring gears are provided with one carrier and one sun gear, or a split-sun arrangement in which two sun gears are provided with one carrier and one ring gear. | 12-25-2014 |
20150018156 | MULTI-SPEED TRANSMISSION - A family of transmission gearing arrangements provides a plurality of forward speed ratios and one or more reverse speed ratios by selective engagement of shift elements in various combinations. An input and an output are provided. Three planetary gear sets are located at an offset position relative to the input axis and the output axis. Axis transfer gears are provided to transfer rotational energy from the input to one of the planetary gear sets, and from one of the planetary gear sets to the output. | 01-15-2015 |
20150031496 | MULTI-SPEED TRANSMISSION - A family of transmission gearing arrangements each establish at least one reverse gear ratio and between nine and fifteen forward gear ratios. A shiftable gearing arrangement establishes a variety of gear ratios speed ratio between the input and a first shaft. In some embodiments, a fixed speed ratio is established upstream or downstream of the shiftable gearing arrangement. In reverse and low gear ratios, a low clutch couples the first shaft to the output. In the high gear ratios, a combining planetary gear set establishes a linear speed relationship between the first shaft, a second shaft rotating at a speed proportional to the input, and the output. | 01-29-2015 |