它描述了一种具有飞机发动机的燃料箱系统（18）（1）的入口装置（30），用于从油分离供给的空气 - 油体积流入箱装置（18）的箱空间（31），一个分离装置（32） 箱空间（31）所供给的空气 - 油流，至少一个壁中的一个（37）有界线区域（38），其中，在所述箱空间（31）的区域中的空气 - 油流至少部分地被引导，和一个出口装置 （40），其中经由从箱装置（18）的箱空间（31）的阀装置（41）的体积流量可以被排放的区域。 提供了一种用于排油的至少一个装置（43），通过该油基本上相反的操作形成在管道部分（38）的空气 - 油体积流的流动方向可以在线路部分（38）的区域中引入的装置。

It describes a tank system (18) of an aircraft engine (1) having an inlet means (30) for supplying an oil-air volume flow into a tank space (31) of the tank means (18), a separating device (32) for separation of oil from the tank space (31) the supplied air-oil flow, one of at least a wall (37) bounded line region (38), in which an air-oil volume flow in the region of the tank space (31) is at least partially guided, and an outlet (40), in the region of which a volume flow via a valve device (41) from the tank space (31) of the tank means (18) is discharged. It means (43) for introducing oil is at least provided by means of which oil is substantially opposite a forming in the operating direction of flow of the air-oil flow rate in the pipe section (38) in the region of the line section (38) is introduced.