Flow distributor for turbine

摘要

The two radial extremities (1a & 1b) of each blade (1) of the turbine are fixed respectively to two plates (2a & 2b) which are concentric with the axis of the turbine. One of the plates encloses an internal chamber (3a), which is limited by first (4a) and second (5a) perforated walls, which are concentric. The first wall allows the inlet of cooling air into the chamber, and the second wall is in contact with the hot gas to be fed to the rotor of the turbine. The first wall and one of the plates form a radial space (E), which is larger than the space (e) formed by the second wall. This radial space gives the necessary rigidity to the corresponding plate and allows the first wall to absorb the mechanical constraints to which the corresponding plate is subjected during the operation of the turbine.