Seals for turbines and turbo machinery

Details Seals for turbines and turbo machinery Seals for turbines and turbo machinery

2005-09-22

2009-10-20

Patel, Vishal (Department: 3676)

Seal for a joint or juncture

Seal between relatively movable parts

Brush seal

Reexamination Certificate

active

07604241

ABSTRACT:
The seal between high and low pressure regions in a turbine or turbo-machinery includes arcuate segments having a brush seal flanked on one or both sides by a plurality of beams lying adjacent to and in contact with one another. Shims separate the bristles of the brush seal from the rows of beams. The cross sectional dimension of the beams is 20-60 times the diameter of the bristles. The beams terminate short of the rotary component while the bristle tips engage the rotary component. The beams take up most of the pressure difference while the bristles take up the balance of the pressure difference across the seal.

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