TURBOMACHINE WITH ROTOR-SHROUD SEAL STRUCTURE

摘要

A turbomachine for moving air (10) includes a shroud (12) disposed about a longitudinal axis and a rotor assembly (14) mounted for rotation about the longitudinal axis. The rotor assembly (14) has a plurality of blades (18) and tips of the blades (20) are coupled to an annular band (24). The annular band (24) is disposed with respect to the shroud (12) so as to define a gap extending continuously between an outer surface of the annular band (24) and an inner surface of the shroud (12). A seal structure (30) extends from the inner surface (32) of the shroud (12) and into the gap (16) to reduce swirl and minimize air leakage across the gap.