Patent ID: 6779799
Filing Date: 2004-08-24
Classification: F04D,F05D,F16J,H02K

Abstract:
Sealing apparatus comprising:a rotary component mounted for rotation about an axis and having circumferentially extending non-continuous surfaces; a stationary component surrounding said rotary component; a seal between the non-continuous surfaces of the rotary component and the surrounding stationary component; said seal including an annular labyrinth seal carried by said stationary component and having a plurality of teeth spaced from outer margins of the rotary component and an annular brush seal on each of axially opposite sides of the labyrinth seal teeth, said brush seals having bristles extending toward the non-continuous surfaces of the rotary component and terminating in tips adjacent the said surfaces whereby leakage through any gap between the surfaces of the rotary component and the stationary component are minimized or eliminated.