Rotary kinetic fluid motors or pumps – Bearing – seal – or liner between runner portion and static part
Patent
1991-02-08
1992-04-14
Look, Edward K.
Rotary kinetic fluid motors or pumps
Bearing, seal, or liner between runner portion and static part
277230, F04D 2908
Patent
active
051042860
ABSTRACT:
A seal is provided to prevent the recirculation of hot gas through an annular cavity formed between the outer flow liner of a diffuser and an exhaust cylinder in the exhaust section of a gas turbine. The seal is formed from a high temperature cloth, such as fiber glass, which is sandwiched between two layers of a fine wire mesh. The seal is comprised of a plurality of arcuate segments. Although the cloth has a rectangular shape when in its undeformed state, it takes an arcuate shape as a result of being crimped within inner and outer arcuate channels. The seal is retained by sliding the channels into circumferential grooves in the exhaust cylinder and outer flow liner. An expansion loop is formed in the seal to allow for differential expansion between the exhaust cylinder and the outer liner.
REFERENCES:
patent: 2314289 (1943-03-01), Salisbury
patent: 2766055 (1956-10-01), Poltorak
patent: 3020185 (1962-02-01), Moffitt, Jr. et al.
patent: 4415309 (1982-11-01), Atterbury
patent: 4438939 (1984-03-01), Pask et al.
patent: 4462603 (1984-07-01), Usher et al.
patent: 4747750 (1988-05-01), Chlus et al.
patent: 4932207 (1990-06-01), Harris et al.
Lee Michael S.
Look Edward K.
Westinghouse Electric Corp.
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