Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1992-12-28
1995-07-25
DePumpo, Daniel G.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277205, 4151701, F16J 1508
Patent
active
054355761
ABSTRACT:
A gas pressure differential sealing ring for forming a seal between a pair of annular surfaces which are rotatable with respect to one another about a common axis to be used, for example, in the compressor portion of a turbojet engine, is disclosed. The sealing ring has a metallic annulus with a central axis and a generally uniform M-shaped cross sectional configuration. One of the surfaces against which it is to seal is substantially flat and generally in a plane perpendicular to the axis while the other is frustoconical. The annulus is formed of a strip of metal of generally uniform thickness to have a uniform serpentine cross-sectional configuration. The annulus is interrupted by a gap creating a pair of closely adjacent ends facing one another, each of the same serpentine shape as the uniform cross-sectional configuration. The serpentine cross-sectional configuration is a generally uniform M-shaped cross sectional configuration including a plurality of arcuate bends and a pair of leg portions extending from a corresponding pair of the arcuate bends toward one another. Each leg is inclined at about 45 degrees to the axis of the annulus with either leg adapted to sealingly engage the frustoconical surface and the arcuate bend associated with the other leg adapted to engage tile flat surface.
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DePumpo Daniel G.
Rickert Roger M.
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