FRONT SUPPORT OF LP TURBINE ROTOR OF TWO-SHAFT GAS TURBINE ENGINE Russian patent published in 2015 - IPC F01D25/16 F02C7/06 

FIELD: engines and pumps.

SUBSTANCE: front support of the rotor of the low pressure turbine of the two-shaft gas turbine engine contains a radial-thrust bearing, a circular element and V-shaped elements. The inner ring of the radial-thrust bearing is installed on the shaft of LP rotor, and its external ring is installed in conic transmission assembly an internal surface of the conic gear wheel contacting with a spring by means of spline connection. The spring contacts with HP rotor pin by means of the spline connection and contains the fixing element limiting it axial shift in the direction from the radial-thrust bearing. The circular element is installed on internal surface of the conic gear wheel, fixed in it to avoid sliding by means of the spline connection and contacts along the end face with the external ring. V-shaped elements are located along a circle between the radial-thrust bearing and the spring. Each of V-shaped elements is formed by two walking beams connected to each other by means of hinged connection. In the joint of walking beams a load is installed, and free ends of walking beams are connected to the external ring and the spring respectively by means of hinged connections. The spring contains the fixing element limiting it axial shift in the direction towards the radial-thrust bearing.

EFFECT: invention allows to simplify operational development of gas turbine engine.

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