Non-axisymmetric rim cavity features to improve sealing efficiencies

摘要

Turbomachinery, such as a gas turbine engine, has parts with opposed first and second surfaces and with a cavity between the surfaces and with the first surface moving relative to the second surface. The turbomachinery further has at least one feature for creating pressure variations incorporated into the first and second surfaces.

主权项

1. Turbomachinery comprising:
a first part having a first surface and a second part having a second surface, each of said first and second surfaces are an axial surface, and each said axial surface parallels a centerline of said turbomachinery, wherein said first surface and said second surface both rotate; a cavity between said first and second surfaces; said first surface moving relative to said second surface; and at least one non-axisymmetric three dimensional feature which extends outwardly into said cavity in both the circumferential and radial directions from said first and second surfaces.