ELASTIC-DAMPER SUPPORTING UNIT OF GAS-TURBINE ENGINE Russian patent published in 2000 - IPC

FIELD: machine engineering, namely supports of rotor of gas-turbine engines for aircrafts and industrial plants. SUBSTANCE: elastic-damper support of gas-turbine engine includes elastic member in which outer race of bearing unit and oil supply ducts are arranged, flange having oil discharge passages and engaging with elastic member and outer race of bearing unit. Flange includes at least three protrusions with -shaped cross section. Axial portion at least of one protrusion restricts together with elastic member flattened duct connecting oil supply and oil drain ducts. There are a large number of openings in lateral rib of radial portion of flange. EFFECT: enhanced reliability of engine due to lowered vibration level of turbine rotor in the result of shortened distance between turbine disc and bearing assembly of supporting unit provided in the result of reduced axial dimension of oil cavity at side of turbine disc. 7 dwg