WORKING BLADE OF TURBOMACHINE Russian patent published in 2010 - IPC F01D5/20 F01D5/12 F16J15/16 

FIELD: machine building.

SUBSTANCE: working blade of turbomachine is implemented with brush-type sealing, located in peripheral area of body clearance, herewith brush-type sealing is implemented of monolithic. Invention can be implemented by following versions: blade and brush-type sealing are implemented of one solid material; brush-type sealing is implemented on end bell of blade; basis of brush-type sealing allows cooling channels, brush-type sealing allows layer of wear-resistant coating, containing molybdenum disulfide; brush-type sealing allows modified surface layer, received by implantation of ions of alloying elements at energy of ions 0.2-300 keV and dose of ion implantation 10¹⁰ up to 5·10²⁰ ion/cm², herewith in the capacity of ions for ion implantation there are used ions Cr, Y, Yb, C, B, Zr, N, La, Ti or its combination, blade stylus allows protective coating, herewith in the capacity of coating material there are used nitrides Me-N, carbides Me-C and carbonic nitrides Me-NC, where Me-Ti, Zr, Al, W, Mo, TiZr, TiAl, TiAlZr, TiAIZrMo or its composition, N -nitrogen, C -carbon, in brush-type sealing in the capacity of contact elements there are used flexible bristle, dimensions of which are: bristle length from 5 up to 20 mm, thickness - from 0.1 up to 1.5 mm, at values of gaps between bristles from 0.5 mcm up to 300 mcm.

EFFECT: enhanced performance characteristics of the device.

20 cl, 1 tbl, 2 dwg