| 摘要 |
FIELD: engines and pumps. ^ SUBSTANCE: impeller of rotary flow machine comprises rotor and ring. The former accommodates blades extending radially therefrom and having root parts attached to the rotor and ends. Aforesaid ring is arranged concentrically to rotor to cover blade ends so that the ring and blades are overlapped if seen in radial direction. With rotor running, ring is driven by blades. Blade radial size and ring ID are selected so that there is a clearance between blade ends and ring in radial direction with rotor dead. Impeller is designed to allow, at a certain rpm, an interaction between blades and ring to transfer a portion of or all force from blades to rotor when the ring revolves. Another invention of the set covers aircraft engine incorporating above described impeller. ^ EFFECT: simple assembly and repair, reduced strain and unbalanced loads. ^ 30 cl, 13 dwg |
