Patent application number | Description | Published |
20090255370 | DOUBLE-CLUTCH TRANSMISSION FOR VEHICLES - A Double-clutch transmission is provided that includes, but is not limited to an inner input shaft inside an outer input shaft. Two clutch discs are connected to the inner input shaft and the outer input shaft, respectively. A first layshaft and a second layshaft are spaced apart from the inner input shaft and arranged in parallel to the inner input shaft. One or more of the two layshafts comprise a fixed output gearwheel for outputting a drive torque. Gearwheels are arranged on the shafts. The gearwheels comprise six gearwheel groups for providing six forward gears and one reverse gear. Each of the gearwheel groups comprises a first fixed gearwheel on one of the inner input shaft meshing with one of the idler gearwheels on one of the first layshaft, the second layshaft, or the third layshaft. Furthermore, a second fixed gearwheel meshes with a second gear idler gearwheel and a fourth gear idler gearwheel. The double-clutch transmission device further comprises a seventh gearwheel group for providing a seventh gear. The seventh gearwheel group comprises a seventh fixed gearwheel on the outer input shaft, meshing with a seventh gear idler gearwheel on one of the first layshaft, the second layshaft, or the third layshaft. | 10-15-2009 |
20090272226 | GEARBOX FOR A MOTOR VEHICLE - A gearbox for a motor vehicle is provided that includes, but is not limited to two coaxial input shafts carrying gearwheels, and three layshafts selectively drivable by the input shafts. Each gearwheel of the input shafts meshes with at least one gearwheel of the two layshafts. The three layshafts carry three pinions meshing with a same output gearwheel, and the third layshaft further carries a reverse gearwheel meshing with a gearwheel of the first layshaft. | 11-05-2009 |
20110023638 | GEAR ARRANGEMENTS FOR 7-SPEED DUAL CLUTCH TRANSMISSION - Double-clutch transmission (DCT) includes, but is not limited to two input shafts that are connected to two clutch discs respectively. The DCT further includes, but is not limited to gearwheels on layshafts and the input shafts. The gearwheels include, but are not limited to six gearwheel groups for providing six gears respectively. Each of the gearwheel groups include, but are not limited to a fixed gearwheel on one of the input shafts, meshing with an idler gearwheel on one of the layshafts. A third fixed gearwheel meshes with the third gear idler gearwheel and the fifth gear idler gearwheel. Additionally, the DCT device further includes, but is not limited to a seventh gearwheel group for providing a seventh gear. The seventh gearwheel group includes, but is not limited to a seventh fixed gearwheel, meshing with a seventh gear idler gearwheel. The DCT further includes, but is not limited to a reverse gear idler shaft and one reverse gearwheel on the reverse gear idler shaft for providing a reverse gear. | 02-03-2011 |
20110048168 | DOUBLE-CLUTCH TRANSMISSION FOR VEHICLES - A double-clutch transmission (DCT) includes, but is not limited to two input shafts that are connected to two clutch discs respectively. The DCT also has three parallel layshafts. One or more of the layshafts includes, but is not limited to a pinion as a final drive. The DCT also includes, but is not limited to seven gearwheel groups for providing seven sequentially increasing forward gears. Each gearwheel group includes, but is not limited to a fixed gearwheel on one of the input shafts, meshing with an idler gearwheel on one of the layshafts. A third fixed gearwheel meshes with a third gear idler gearwheel and a fifth gear idler gearwheel. Especially, a reverse gearwheel group of the DCT includes, but is not limited to a reverse fixed gearwheel on one of the input shafts, meshing with a reverse gear idler gearwheel on one of the layshafts for providing a reverse gear. A second fixed gearwheel meshes with a second gear idler gearwheel and a fourth gear idler gearwheel. | 03-03-2011 |
20110088509 | DOUBLE-CLUTCH TRANSMISSION FOR VEHICLES - A double-clutch transmission includes, but is not limited to two input shafts and three layshafts that are parallel to each other. One or more of the layshafts comprises a pinion that meshes with an output gearwheel on an output shaft. Gearwheels are arranged on the shafts and the shafts comprise seven gearwheel groups for providing seven sequentially increasing forward gear speeds. Each of the gearwheel groups comprises a fixed gearwheel on one of the input shafts, meshing with an idler gearwheel on one of the layshafts. One or more coupling devices of the double-clutch transmission is mounted on one of the layshafts to selectively engage one of the idler gears for outputting these seven gear speeds. Especially, the pinion comprises a first pinion mounted on a first layshaft via a bearing. | 04-21-2011 |
20110120244 | TWO-SHAFT SHIFT GEARBOX OF A MOTOR VEHICLE - A two-shaft shift gearbox is provided for a motor vehicle. The two-shaft shift gearbox has a drive shaft and an output shaft. Driving gearwheels are arranged on the drive shaft and output gearwheels are arranged on the output shaft. Switching elements bring the driving gearwheels in pairs in engagement with output gearwheels via gear synchronizers. Here, the driving gearwheel of the lowest gear with the smallest ring gear diameter is arranged on a first end section and the driving gearwheel of the highest gear with the largest ring gear diameter is arranged on a second end section of the drive shaft lying opposite the first end section. | 05-26-2011 |
20110138943 | DOUBLE-CLUTCH TRANSMISSION FOR VEHICLES - A double-clutch transmission includes, but is not limited to an inner input shaft inside an outer input shaft. Two clutch discs are connected to the two input shafts, respectively. Three layshafts of the DCT are parallel to the input shafts and one of the layshafts has a pinion at en end. Gearwheels on the shafts include, but are not limited to seven gearwheel groups for providing seven sequentially increasing forward gears. Each of the groups comprises a fixed gearwheel on the inner input shaft, meshing with an idler gearwheel on one of the layshafts for providing a forward gear. A fourth fixed gearwheel meshes with a fourth gear idler gearwheel and a sixth gear idler gearwheel. Especially, the DCT further includes, but is not limited to comprises the double-clutch transmission that includes, but is not limited to a park-lock gearwheel fixed onto one of the layshafts that carries a final drive pinion. | 06-16-2011 |
20110138944 | DOUBLE-CLUTCH TRANSMISSION FOR VEHICLES - A double-clutch transmission (DCT) includes, but is not limited to two input shafts that are connected to two clutches separately. Three layshafts of the DCT are spaced apart from the input shafts in parallel. One or more of the layshafts includes, but are not limited to a pinion. Gearwheels of eight gearwheel groups are arranged on the shafts for providing seven sequentially increasing forward gears and one reverse gear. Each one of the gearwheel groups comprises a fixed gearwheel on one of the input shaft, meshing with an idler gearwheel on one of the layshafts. A third fixed gearwheel meshes with a third gear idler gearwheel and a fifth gear idler gearwheel. Especially, a fourth fixed gearwheel meshes with a fourth gear idler gearwheel and a sixth gear idler gearwheel. | 06-16-2011 |
20110146443 | DOUBLE-CLUTCH TRANSMISSION FOR VEHICLES - A double-clutch transmission (DCT)includes, but is not limited to an inner input shaft inside an outer input shaft. Two clutches of the DCT are connected to the input shafts respectively. The DCT has three layshafts that are parallel to the input shafts. One or more pinions are fixed onto the layshafts respectively. Seven forward gearwheel groups and one reverse gearwheel group of the DCT are arranged on the shafts. Each one of the gearwheel groups comprises a fixed gearwheel on one of the input shafts, meshing with an idler gearwheel on one of the layshafts. In particular, a third fixed gearwheel meshes with a third idler gearwheel and a fifth idler gearwheel. Especially, the DCT includes, but is not limited to a park-lock. | 06-23-2011 |
20110146444 | DOUBLE-CLUTCH TRANSMISSION FOR VEHICLES - A double-clutch transmission includes, but is not limited to an inner input shaft and an outer input shaft that are connected to a first clutch and a second clutch respectively. A first layshaft and a second layshaft of the DCT are spaced apart and arranged in parallel to the input shafts. Gearwheels of the DCT are arranged on the first layshaft, on the second layshaft, on the inner input shaft and on the outer input shaft. The gearwheels include, but are not limited to seven gearwheel groups for providing seven sequentially increasing gears. Each of the gearwheel groups includes, but is not limited to a fixed gearwheel on one of the input shafts that meshes with an idler gearwheel on one of the layshafts. A fourth fixed gearwheel meshes with a fourth gear idler gearwheel and a sixth gear idler gearwheel. A third fixed gearwheel meshes with a third gear idler gearwheel and a fifth gear idler gearwheel. | 06-23-2011 |
20110214521 | TRANSMISSION FOR VEHICLES - A transmission for a car has a first gearwheel group that includes, but is not limited to s a fixed gearwheel first gear on an input shaft and that is meshing with an idler first gear on a first layshaft. The transmission further includes, but is not limited to an idler reverse gear on a second layshaft, the idler reverse gear meshing with the idler first gear on the first layshaft, wherein gearwheels of a second gearwheel group, of a third gearwheel group, and of a fourth gearwheel group being arranged on the input shaft and on the first layshaft. | 09-08-2011 |