FIELD: engines and pumps.
SUBSTANCE: angular sector of gas turbine engine compressor stator comprises outer and inner rings and blade passing between bands and connected therewith. Outer ring has first and second mounts for installation of angular sector of stator on engine housing, oriented parallel to axis in opposite directions and interconnected by mid section. Outer ring has axial end section extending from intermediate section with free end and connected to radially outer end of blade. Damping insert is made with possibility of being in contact with end section. If specified value of amplitude of oscillation damping insert end section and end section can move relative to each other so that to change common moving mass which moves with end section, thus changing nature of oscillations of this end. External bandage comprises on one axial end of cavity, open towards axial end, cavity passes between end section and outer radial tab carrying one of first and second mounts. Other group inventions relate to gas turbine engine stator comprising abovementioned angular sector and a gas turbine engine comprising such stator.
EFFECT: group of inventions allows providing damping of oscillations of front and/or rear edges of end section of blade angular sector of stator.
16 cl, 11 dwg
