Patent ID: 8591179
Filing Date: 2013-11-26
Classification: F04D

Abstract:
1. An axial-flow compressor including, within a compressor casing, at least one rotor of rotor blades connected to a drive shaft; a stator held on an inner wall of the casing and, a flow pulse generator for stabilizing a rotor gap flow associated with a rotor gap formed between tips of the rotor blades and the casing inner wall, the flow pulse generator including pulse channels arranged on the inner wall of the casing and extending upstream of the rotor and tapering in a flow direction to accelerate a wall-near flow, a shape and size of the pulse channels being determined by circumferentially spaced successive separators attached without a gap on the casing inner wall, the flow pulse generator radially aligned with and positioned directly upstream of at least a portion of the rotor gap to accelerate a wall-near flow into the rotor gap.