Coolant supply system for an electric vehicle axle drive

A coolant supply system for an electric vehicle axle drive with an electric machine, in the electric machine housing of which a stator interacts with a rotor which is spaced from the stator via an air gap, wherein the interior of the electric machine is supplied with coolant for internal rotor cooling and/or for stator cooling, and wherein the coolant supply system has a flow unit by which an air flow can be generated which flows through the air gap in the axial direction, whereby the air gap is kept substantially free of coolant to reduce rotor drag losses, wherein an air flow space is located axially on both sides of the rotor/stator arrangement, in that the two air flow spaces are in fluid communication with the air gap, and in that in particular the two air flow spaces are divided into an inlet-side air flow space, into which the air flow flows via an air inlet, and an outlet-side airflow space with an air outlet from which the air flow flows out.