SHROUD ARRANGEMENT OF A ROW OF BLADES OF STATOR VANES OR ROTOR BLADES

摘要

A cover band assembly of a blade row of stator or rotor blades is provided. The cover band assembly comprises a blade row that is arranged inside a main flow path of a continuous-flow machine and has multiple blades which respectively have a front edge and a rear edge; and a cover band of the blade row that is at least partially embedded in a component or a component group as regarded in a longitudinal section of the continuous-flow machine, wherein a cavity is formed that surrounds the cover band and is connected to the main flow path by way of two cavity openings, wherein the front cavity opening is provided upstream of the front edge and the rear cavity opening is provided downstream of the rear edge of the blades of the blade row. Here, the cover band has a leading edge and a trailing edge.

主权项

1. A cover band assembly of a blade row of stator or rotor blades, comprising:
blade row arranged inside a main flow path of a continuous-flow machine and having multiple blades which respectively have a front edge and a rear edge, cover band of the blade row that is at least partially embedded in a component or a component group as regarded in a longitudinal section of the continuous-flow machine, wherein a cavity is formed that surrounds the cover band and is connected to the main flow path by way of two cavity openings, wherein the front cavity opening is provided upstream of the front edge and the rear cavity opening is provided downstream of the rear edge of the blades of the blade row, wherein the cover band has a leading edge and a trailing edge, and wherein the cover band contour is retracted away from the main flow path into the cavity in the area of the leading edge and/or in the area of the trailing edge in at least one longitudinal section of the continuous-flow machine.