TURBOMACHINE ROTOR ELASTIC DAMPER SUPPORT Russian patent published in 2018 - IPC F16C27/00 F02C7/06 F01D25/16 

FIELD: motors and pumps.

SUBSTANCE: invention relates to the field of turbomachines building, mainly to the aircraft engines building, namely to the design of the turbomachines rotors elastic-damping supports. Turbomachine rotor elastic-damping support contains supported by radial bearing shaft, stator element with the oil flow holes and annular groove made therein. Hydrodynamic damper connects the stator element to the radial bearing. Cover is mounted on the stator element. Hydrodynamic damper is made in the form of resilient elastic ring with cylindrical outer and inner surfaces, in which circumferential direction the through holes are made, forming the support bridges and arc-shaped springs with holes. Elastic-damping support is provided with at least one circumferential row of through-slots, arranged concentrically relative to the hydrodynamic damper axis and forming at least two rings connected by support bridges and located at an equal distance from each other with formation of the symmetrically arranged arc-shaped springs. In the arc-shaped springs, inclined holes are made. In each second support bridge slots are made, forming protrusions on arc-shaped springs, between which the radial clearance is made, to enable bending of the latter. In the two adjacent rows of through slots, the protrusions and support bridges are located in the staggered order. Oil supply holes and the annular groove are made from the hydrodynamic damper end side.

EFFECT: enabling high efficiency of damping in the turbomachine different operating modes and reducing the overall level of vibration.

1 cl, 3 dwg