Labyrinth abradable seal for a turbomachine

摘要

The seal has an abradable lining (10) made of porous material and formed by elongated hollow bodies (11). Sealing fins (8) are oriented towards the lining for hot gas sealing within a region of a turbine of a gas-turbine engine. The elongated hollow bodies conform in shape and size and are linearly arranged as an ordered cellular structure side by side and one above the other in x, y and z directions. The hollow bodies are interfacially or fully interfacially connected to each other with open pores (12) so that tips of the fins are approximately and centrally oriented to the hollow bodies.