在气体冷却的电机，导体杆（3,4）是在绕组端部由通过眼睛内的冷却气流的部分流（5A，5B）的杆的端部优选的冷却通道（8）被引导，直接冷却。 为此目的，构成为双杆式杆的卷绕杆的杆面在眼部区域中彼此间隔开，并因此形成径向冷却通道（8）。 这些径向冷却通道（8）位于具有管连接件（10）的排放凸耳（5b）处，所述管连接件与圆形连接件（20）电连接并且流体连接。 圆形连接（20）的冷却通道（9）由风扇绝缘管（31）或绝缘套管的方式连接到从由机器的一个分区（33）独立的抽吸室（32）的空间（30）的卷绕头。 冷却通道8在径向流动方向上的流动由壳体34推动，壳体34环形地布置在卷绕头空间中与孔眼（5a，5b）的端面相邻。

In a gas-cooled electric machine, the conductor bars (3.4) are in the winding head by a partial flow of the cooling gas flow through within the eyes (5a, 5b) of the rod ends preferred cooling channels (8) is guided, directly cooled. To this end, the bar levels of embodied as two-level bar winding bars in the eye region are spaced from one another, and thus form a radial cooling channel (8). These radial cooling channels (8) are provided at the Ableitösen (5b) with pipe connections (10), which are coupled electrically and fluidically with round connections (20). The cooling channels (9) of the round connections (20) with a winding head from the space (30) by a partition (33) separate suction chamber (32) of the machine by means of the fan insulating tubes (31) or insulating sleeves connected. The flow of the cooling channels 8 in the radial direction of flow is forced by a casing 34, which annular space in the winding overhang the ends of the loops (5a, 5b) is arranged adjacent.