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US 5,114,159 AGranted
Brush seal and damper
AssigneeUnited Technologies Corporation
InventorsDonald J. Baird, Brett D. Rhodes, William W. Griffin, Jr.
Life of this patent
Estimating the term…
Abstract
Brush seals 30 are secured to segmented vane platforms 20. Inwardly extending bristles 42 seal against rotor 10. Outwardly extending bristles 46 seal against the vane platform 20, and also act as vibration dampers.
Claims8
A gas turbine engine interstage seal arrangement comprising:
- a plurality of stationary vanes annularly disposed around said rotor shaft;
- a plurality of vane platforms secured to said vanes and spaced from said rotor shaft;
- a plurality of arcuate brush seal assemblies, each brush seal assembly having an arcuate bristle support;
- a plurality of inboard resilient bristles, tightly packed, secured to said support, and extending inwardly at an angle to the radial direction, a plurality of outboard resilient bristles, that are tightly packed, secured to said support, and extending outward at an angle to the radial direction;
- and
- each brush seal assembly supported from a vane platform with said inboard bristles in sealing contact with said vane platform, and said outboard bristles in sealing contact with said rotor.
3 more elements
Dependencies are inferred from the claim text.