INTER-ROTOR SUPPORT OF GAS TURBINE MOTOR Russian patent published in 2008 - IPC F02C7/06 

FIELD: motors and pumps.

SUBSTANCE: invention relates to gas turbine motors and, particularly to double-rotor gas turbine motor supports, and may be used in aviation engine engineering and other engineering branches where gas turbine motors are used. Inter-rotor support of gas turbine motor includes shaft, high-pressure pivoted rotor, and low-pressure rotor with pivot provided with ports for oil supply, and bearing with external and internal rings. The first ring is fixed to high-pressure rotor pivot. Separator is also included into support. The separator width is bigger than bearing roller width. Low-pressure rotor pivot and shaft are spline coupled with each other creating cavity between them for oil supply. Cavity is connected with pivot openings. Bushing with oil supply ports and internal bearing ring are installed on low-pressure pivot. Bushing is aligned regarding pivot so that it creates cavity coupled with slotted collectors through the ports. Slotted collectors are made at the internal bearing ring ends. Partition is available in cavity and gap is ensured by external ring of bearing is situated with gap with regard fixing element.

EFFECT: improved reliability of motor operation.

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