THRUST BEARING OF TURBOMACHINE Russian patent published in 2009 - IPC F16C17/04 F16C33/10 F04D29/04 

FIELD: power engineering.

SUBSTANCE: invention is related to the field of heat power engineering and may be used in design, production, reconstruction and operation of steam and gas turbines. Thrust bearing (1) of turbomachine comprises stop blocks (2), movably fixed with the help of radial pins (3) in annular race 4 (from two halves), installed in body of thrust bearing (1). Working surface of stop blocks (2) fits closely to side surface of thrust collar (5) of turbomachine rotor, and support prisms (6) of stop blocks (2) rest on disk elastic membranes (7), having thrust protrusion (8) and rigidly connected along external diametre with annular race (4), in body of which under each membrane (7) there are cylindrical chambers (9), connected to each other by means of sealed hydraulic annular header (10) and creating closed system of cavities filled with incompressible working liquid (11), which executes hydraulic connection between chambers (9). Annular header (10) is connected to expansion tank (12) of atmospheric type by means of drain line (13), in which safety valve (14) is installed, and suction line (15), in which check valve (16) is installed. Drain (13) and suction (15) lines are brought into expansion tank (12) under level of working liquid (11) that fills it.

EFFECT: higher bearing capacity of thrust bearing, and also reliability and efficiency of turbomachine operation.

4 cl, 3 dwg