FLEXIBLE LAYERED SEAL FOR TURBOMACHINERY

摘要

The present application provides seal assemblies having improved flexibility for reducing leakages between adjacent misaligned components of turbomachinery. The seal assemblies include a first outer shim formed of a flexible permeable material and a second outer shim formed of a substantially impervious material. At least the second outer shim is configured for sealing engagement with seal slots of the adjacent components. The seal assemblies may also include at least one of an inner shim and a filler layer positioned between the first and second outer shims. The seal assemblies may be sufficiently flexible to account for misalignment between the adjacent components, sufficiently stiff to meet assembly requirements, and sufficiently robust to meet operating requirements associated with turbomachinery. A turbomachine including the seal assembly is provided.

主权项

1. A seal assembly for sealing a gap between adjacent turbomachinery components, the assembly including:
a first outer shim comprised of a substantially permeable material; and a second outer shim, operably coupled to the first outer shim, the second outer shim comprised of a substantially impervious material, wherein the first outer shim is configured in a top position and the second outer shim is configured in a bottom position adjacent a low-pressure surface of the seal assembly, and wherein the first outer shim and the second outer shim are configured to span across the gap and engage each of the adjacent turbomachinery components to substantially seal the gap therebetween.