Sealing arrangement for turbine of turbo machine, has groove comprising undercuts provided in axial direction, where platform and/or sealing ring comprise sealing element that engages groove and extends in peripheral direction

摘要

The arrangement has a sealing ring (1) for circularly surrounding a blade sequence. Blades (2) of the blade sequence form an air gap at the sealing ring at a free end. A platform (3) is provided at the free end of each blade. The sealing ring and/or the platform have a radial circular groove provided with a circular opening. The groove has undercuts provided in an axial direction. The platform and/or the sealing ring have a sealing element that engages the groove and extends in a peripheral direction. The annular groove has a C-shaped cross section.