Coupling arrangment

A coupling arrangement includes a first clutch device for establishing a working connection between an electric machine and an internal combustion engine and a second clutch device for establishing a working connection between at least one of the machines and a takeoff. Each of the two clutch devices has its own clutch components in the form of at least one piston and a predetermined number of clutch elements. By means of the piston in question, a pressure space is at least essentially sealed off from a cooling space, which holds the clutch elements. Each of the pressure spaces of the two clutch devices has its own supply line, whereas only one of the cooling spaces of the two clutch devices has its own supply line, the cooling space of the other clutch device being connected by a line leading to the cooling space of the first-mentioned clutch device.