Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1990-02-21
1992-09-01
Shoap, Allan N.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
4151744, 4151745, F16J 15447, F01D 1102
Patent
active
051433834
ABSTRACT:
A rotating labyrinth seal especially useful for effecting sealing between two plenums in aircraft gas turbine engines comprising a base and a plurality of radially-directed seal teeth rings extending circumferentially around the outer peripheral surface of the base. Each of the seal teeth rings has a body portion and a tip portion, with the body portion being substantially thicker than the tip portion. Seal teeth rings of the invention exhibit improved resistance to fatigue crack propagation compared to conventional seal teeth rings.
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patent: 3514112 (1970-05-01), Pettengill
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patent: 4351532 (1982-09-01), Laverty
patent: 4386784 (1983-06-01), Banks
J. A. Harris et al., AFWAL-TR-80-4118--Concept Definition: Retirement for Cause of F100 Rotor Components--Sep. 1980.
Bobo Melvin
Glynn Christopher C.
Swanson Byron E.
General Electric Company
Maria Carmen Santa
Shoap Allan N.
Squillaro Jerome C.
Strunck Stephen S.
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