Patent ID: 9200528
Filing Date: 2015-12-01
Classification: F01D,F05D,F16J

Abstract:
1. A seal assembly for sealing between a rotating component and a stationary component in a turbomachine, the seal assembly comprising: a plurality of radially inwardly projecting, axially spaced teeth extending from the stationary component, wherein at least one of the plurality of teeth has at least one axially extending hole therethrough, the axially extending hole extending through the at least one of the plurality of teeth from an upstream, high-pressure side to a downstream, low-pressure side of the at least one tooth and being distanced from a radially innermost surface of the at least one tooth and positioned radially inwardly from a radially innermost surface of an arcuate packing ring, wherein the upstream, high-pressure side is in fluid communication with the downstream, low-pressure side via the at least one axially extending hole.