Leaf seal for turbomachine

摘要

The seal (3) has multiple metallic sheets (4) which are arranged concentrically around the periphery of a rotor of a turbo engine. The sheets are stung together and mounted on a carrier (6). The seal has a front plate (7) and a rear plate (8), where the both plates are connected with the carrier and extend over the periphery of the seal on both sides of sheets. The seal has a device in the transformation of an axial distance between the seal and the rear plate. The transformation is actively controlled during the operation of the turbo engine.