Hybrid seal and rotary machine containing such hybrid seal

Details Hybrid seal and rotary machine containing such hybrid seal Hybrid seal and rotary machine containing such hybrid seal

1998-09-23

2000-02-29

Look, Edward K.

Rotary kinetic fluid motors or pumps

Bearing, seal, or liner between runner portion and static part

Between blade edge and static part

4151735, 4151745, 4151742, 415230, 415231, 277355, 277416, 277421, F01D 1102

Patent

active

060301759

ABSTRACT:
A hybrid seal segment and a rotary machine (such as a steam or gas turbine) containing such hybrid seal segment. The machine has a rotor, a stator casing, and the hybrid seal segment. The annular hybrid seal segment has a circumferentially-extending channel between axially-spaced-apart first and second labyrinth-seal segments which are attached to a radially-outwardly located mounting block which is circumferentially offset from the labyrinth-seal segments. A brush-seal segment is positioned in the channel.

REFERENCES:
patent: 5613829 (1997-03-01), Wolfe et al.
patent: 5749584 (1998-05-01), Skinner et al.
WO 99/30065, Ingistov, Turbine Power Plant Having Minimal-Contact Brush Seal Augmented Labyrinth seal, Jun. 1999.
Application entitled, "Seal Assembly and Rotary Machine Containing Such Seal Assembly", Turnquist et al., Serial No. 09/131,486, filed Aug. 10, 1998.
Application entitled, "Brush Seal Segment", Turnquist et al., Serial No. 09/131,485, filed Aug. 10, 1998.
Application entitled, "Brush Seal and Rotary Machine Containing Such Brush Seal", Zhou, Serial No. 09/139,869, Aug. 25, 1998.
"Brush Seals in Industrial Gas Turbines", by Wolfe et al., AIAA-97-2730, Jul. 6-9, 1997. pp. 1-7.

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