Patent application number | Description | Published |
20080245167 | Dual clutch group transmission shifttable under load - In a load shiftable group transmission with a high number of gears, particularly suitable for utility vehicles, the transmission includes a dual clutch a split unit, a direct gear, a main group and a hollow shaft on a countershaft in an arrangement, wherein the various gear stages can be established by a change of the input constants within the split unit without a change in the transmission stage in the main transmission without an interruption in tractive force during shifting between two adjacent gears within the main group. | 10-09-2008 |
20090095101 | Load-shiftable transmission for a commercial vehicle - In a load shift transmission for a utility vehicle having a transmission input shaft, a split group, a main group and a range group, a dual clutch with two input shafts, a main shaft and a countershaft with input constants including loose gear wheels, one loose gear wheel of an input constant is selectively rotationally fixedly connectable by means of shift elements to either one of the input shafts which can in each case be coupled by means of clutches (K | 04-16-2009 |
20090193919 | Automated shift transmission - In an automated split path transmission with at least six forward speeds and three characteristic transmission steps (s | 08-06-2009 |
20090205450 | Group transmission for a motor vehicle - In a group transmission having a number of countershafts, wherein three input constants are provided on a transmission input shaft for driving a countershaft such that the group transmission is of very short construction, the transmission input shaft is connectable to an intermediate shaft for direct power transmission, with the countershaft being disconnectable in the direct gear in order to avoid drag losses. | 08-20-2009 |
20090205452 | Transmission for a commercial vehicle with a main group and a downstream group - In a commercial vehicle transmission with a main group and a downstream group including a downstream group countershaft, the downstream group includes means for decoupling the downstream group countershaft in direct through drive so that in direct through-drive the countershaft does not run in an oil sump and no churning losses occur thereby increasing vehicle transmission efficiency. | 08-20-2009 |
20090235768 | Auxiliary range transmission - In an auxiliary range transmission comprising a main group having a main transmission shaft and two main countershafts capable of rotating in relation to two auxiliary countershafts of a range or an auxiliary transmission group, a gearshift element is provided, which, in a first position, rotationally engages a loose gear of the main group and, in a second position, rotationally locks a loose gear of the range or auxiliary group with the main shaft. In an alternative embodiment, a splitter group may also be arranged in front of the main group in place of the range or auxiliary transmission group. | 09-24-2009 |
20100162840 | Double clutch gear change transmission - In a gear wheel speed change transmission with at least two power shift clutches, with gear wheels arranged in different gear wheel planes and with an input shaft and an output shaft, which can be actively interconnected by way of the gear wheels arranged in the gear wheel planes, which include at least six forward gears that can be shifted under power, all of the six forward gears, which are sequentially power-shiftable, and two reverse gears are formed by exactly six gear wheel planes and exactly three shift units with shift collars, which all have engagement positions at both sides of their neutral center position. | 07-01-2010 |
20100218643 | Dual clutch transmission device - In a dual clutch transmission with a main group and final shift group, with a coupling device for coupling a transmission element of the main group to a final shift group transmission element of the final shift group, the transmission comprises two transmission gears (V | 09-02-2010 |