Integrally bladed rotor disk for a turbine

摘要

An integrally bladed rotor disk (20) for a turbine, including rotor blades (40), which are joined in a substance-to-substance bond to a disk element (30), and a sealing device (60) for preventing or reducing the extent to which cooling air is able to flow from a high-pressure side (12) of the rotor disk (20) through openings (24) on the rotor disk (20) to a low-pressure side (14) of the rotor disk (20).

主权项

1. An integrally bladed rotor disk for a turbine, comprising:
a disk element; a plurality of rotor blades joined in a substance-to-substance bond to the disk element; a seal for preventing or reducing an extent to which cooling air is able to flow from a high-pressure side of the rotor disk through openings on the rotor disk to a low-pressure side of the rotor disk; the openings being annularly configured, the seal including a single- or multi-part annular component configured on the high-pressure side or on the low-pressure side of the openings; and holding devices engaging into the openings and holding the annular component, one of the holding devices including a pipe or profiled sheet-metal component inserted into a corresponding opening and holding the annular component by a collar or a raised edge.