Multispeed gearbox e.g. for vehicle

摘要

The gearbox has successive speeds driven simultaneously or alternatively via hydraulic or mechanical clutches. These in turn drive a main gear via shafts and freewheeling gears. Two or more hydraulic (HK1, HK2) or mechanical (mK1, mK2) clutches transmit the drive to shaft with gears of the desired ratios and which are in turn coupled to freewheeling gears (F). These mesh with a main gear (S), which in an emergency can be detachably coupled to the driving shaft.