Abstract: A sealing sleeve for a stator of an electrical machine is disclosed. The sealing sleeve is configured to provide that a coolant flowing around the stator coils follows a predefined, serpentine coolant path. The sleeve has two sealing rings arranged on the stator with the coils of the stator lying between them. Each sealing ring includes a hard component and a soft component. The sleeve is arranged on the stator such that sealing sections of the soft component bear against the surfaces of the stator coils and adapt to the coil surfaces. As such, no coolant may pass between the coils and the sealing rings at these sealing locations thus formed, and therefore the desired coolant flow is guaranteed. Furthermore, the sealing rings are configured such that alternately for each coil only one of the sealing rings has a sealing section so that ultimately the serpentine coolant flow is achieved.