Patent ID: 9267602
Filing Date: 2016-02-23
CPC Classification: F16J

Claim Text:
1. A seal between a rotor and a stator, comprising: a plurality of seal leaves positioned between the rotor and the stator, the plurality of seal leaves circumferentially stacked around the rotor to define a seal ring between the rotor and the stator, wherein each seal leaf includes opposite surfaces with a constant thickness between the surfaces along a length of the seal leaf, each surface having a plurality of solid protrusions extending therefrom, each solid protrusion having a contact face, wherein gaps between adjacent seal leaves are partially filled, such that residual gaps are between adjacent seal leaves, wherein the contact faces of the solid protrusions contact one of the surfaces of an adjacent seal leaf or the contact face of one of the solid protrusions on the adjacent seal leaf and generate friction to dampen vibrations during operation.