FINGER SEALING AND THE METHOD OF ITS PRODUCTION Russian patent published in 2012 - IPC F16J15/447 

FIELD: engine building.

SUBSTANCE: inventions relate to the field of propulsion engineering and can be used in the constructions of gas turbine engines to seal ringed gaps between stator and rotor, as well as in their production. Finger sealing comprises at least two, adjacent to each other, ringed components. Ringed components have ringed array of fingers, formed by slots performance in each of them. Fingers have free ends that are intended to cover the surface of the packed wall. Ringed components are set, relative to each other, with an angular offset so that the fingers of each ringed component overlap the slots of another adjacent ringed component. Each ringed component has a circular rim, made with it in one piece. The slots in each ringed component are made in such a way that they go to its rim part. The method of finger seal manufacturing is described.

EFFECT: reduction of the radial dimensions of finger sealing, simplification of the technology and improvement of the accuracy of its production.

5 cl, 12 dwg