Sealing element for a turbo-machine

Claim 1

In an arrangement for packing expansion joints on turbomachines and more particularly packing the axially extending gaps provided between adjacent blading of a blade row and circumferentially extending gaps provided between each blade row and an adjacent row of blade segments which serve to provide axial spacing between adjacent rows of blading on the rotor of the machine, the combination comprising a first set of packing strips inserted in grooves provided along those confronting sides of the blading which establish the axially extending gaps, a second set of packing strips inserted in grooves provided along those confronting sides of the blading which establish the circumferentially extending gaps that intersect said axially extending gaps, each of said packing strips of each set being constituted by two layers which are shifted in a longitudinal direction relative to each other such that one layer of each strip of each set continues across each intersection of said axial and circumferentially extending gaps while an end of the other layer of each strip of one set terminates at an intersection at the side Of the layer of the other set which continues across said intersection, and means for interconnecting the strips of said first and second sets in the axial and circumferential directions at said intersections by interconnecting the ends of the layers of the strips of one set at their junctions with the sides of the layers of the strips of the other set.