Annular seal for a gas turbine engine

Details Annular seal for a gas turbine engine Annular seal for a gas turbine engine

1981-04-22

1984-03-27

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 88, F16J 1508

Patent

active

044389396

ABSTRACT:
An annular seal for a gas turbine engine comprises a stacked plurality of Belleville washers with at least some of their abutting peripheries held together by U-section rings. If only those peripheries pointing toward a lower pressure area are retained together, gas pressure will hold the other peripheries together. Because the U-section rings do not prevent the washers from changing the angle of their section, relatively large axial motion between the sealed members may be tolerated.

REFERENCES:
patent: 2089570 (1937-08-01), Petrelli
patent: 2713482 (1955-07-01), Stapleton
patent: 2733567 (1956-02-01), Zellweger
patent: 3028163 (1962-04-01), Heinrich
patent: 3110096 (1963-11-01), Yocum
patent: 3277797 (1966-10-01), Tyree et al.
patent: 3363910 (1968-01-01), Toronchuk
patent: 3419279 (1968-12-01), Tracy
patent: 3480286 (1969-11-01), Anderson
patent: 4121843 (1978-10-01), Halling
patent: 4216973 (1980-08-01), Kessinger
patent: 4361335 (1982-11-01), Vinciguerra
patent: 4375891 (1983-03-01), Pask

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