Secondary seal for gas turbines

Details Secondary seal for gas turbines Secondary seal for gas turbines

1992-04-28

1992-12-22

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277815, 277 84, 277 85, 277197, F16J 1534

Patent

active

051729180

ABSTRACT:
A secondary seal for use in a high temperature environment, including only non-elastomeric elements, includes split high temperature carbon graphite secondary seal rings axially biased by a first set of springs and radially biased by a second set of springs.

REFERENCES:
patent: 603736 (1898-05-01), Prendergast
patent: 774886 (1904-11-01), Magnusson
patent: 2365046 (1944-12-01), Bottomley
patent: 2839317 (1958-06-01), Haake
patent: 4082296 (1978-04-01), Stein
patent: 4132417 (1979-01-01), Lagerqvist
patent: 4889348 (1989-12-01), Amundson et al.
patent: 4943069 (1990-07-01), Jinnouchi
patent: 4969652 (1990-11-01), Munson
Munson et al., "Development Film Riding Face Seals for Gas Turbine Engine" Tribology Transactions ; vol. 35, 1992, pp. 65-70.

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