FIELD: machine building.
SUBSTANCE: invention relates to a rotor assembly for a turbine engine, comprising a rotor with two successive steps (10a, 10b) of a rotor, equipped with a plurality of movable blades (20), and annular casing (50) of rotor, which connects two successive stages of rotor; stator containing stage (11) of stator equipped with multiple fixed blades (30) and located between two stages of rotor, and annular stator ring (60) installed on fixed blades. Either the rotor casing or the stator ring carries at least one brush (51) intended to interact with abradable path (62) on the other rotor casing and the stator ring so that the rotor casing comprises at least on one of its upstream and downstream ends the inclined contact fragment (154), resting on inclined carrying surface (173a) of corresponding rotor stage, bearing surface is external surface of protrusion (173) extending from base fragment (127) of corresponding rotor stage.
EFFECT: due to such configuration, casing of rotor and rotor stage can expand differently without radial mechanical stresses occurring at boundary between these parts, which prolongs service life of rotor assembly.
15 cl, 8 dwg
