Patent ID: 8814173
Filing Date: 2014-08-26
Classification: F01D,F05D,F16J,F23R

Abstract:
1. A seal for stemming leakage flows between adjacent components of turbomachines, the seal comprising: an elongated, thin-walled sealing element which is elastically deformable in at least one transverse direction and in cross section has the shape of a bent band; an elongated, thin-walled cover element having a U-shaped cross section, the U-shape having legs and a base, the legs and the base delimiting a recess in which the sealing element is positioned, wherein: the sealing element has a relaxed state in which a portion of the sealing element is outside said recess; the sealing element has a cross sectional shape of a repeatedly bent band which has a plurality of consecutive bends with alternating bend directions; and each bend is the cross-sectional shape of an associated bent wall section of the sealing element; the sealing element includes a plurality of transversely extending wall sections; the sealing element has two adjacent rows of consecutive bent wall sections, two consecutive bent wall sections of each row are connected by one transversely extending wall section, and in each row all the transversely extending wall sections intersect a common center plane; the two adjacent rows each define a center plane, the center planes being parallel to each other; and the seal further comprises a thin-walled cover strip which has a band-like cross section and extends between two of said wall sections, both rows of the bent wall sections being connected by the cover strip, and the cover strip has at least one convex surface region oriented away from the recess configured and arranged to at least partially bear against a sealing surface of the other component.