Method of sealing between relatively movable components

Details Method of sealing between relatively movable components Method of sealing between relatively movable components

1985-08-16

1986-10-07

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 26, 277152, 277165, 116147, 340405, F16J 1532, G01K 704

Patent

active

046155309

ABSTRACT:
A siren comprises a compressed air supply which is deflected by stationary deflectors to exit radially through stator ports. A rotor with spaced ports rotates between the stator and deflector thereby opening and closing the stator ports. Stationary vanes are disposed at circumferentially spaced locations, and constitute together with the deflector plate and stator and rotor housing, plenums. There are fewer rotor ports than stator ports, which generates an out-of-phase acoustical pattern which creates an acoustic combination from the stator ports of an acoustic output at a distance from the siren which is more uniform spatially. The thermoplastic seal between the stator and the rotor has minimal clearance under operating conditions havign been run-in and plastically deformed at a temperature higher than for normal operation.

REFERENCES:
patent: 3062555 (1962-11-01), Britton
patent: 3277797 (1966-10-01), Tyree et al.
patent: 3394939 (1968-07-01), Mastro
patent: 4369977 (1983-01-01), Bishop et al.

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