Sleeve seal

Rotary kinetic fluid motors or pumps – Including thermal expansion joint – Circumferentially spaced nozzle or stator segments

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Details

415115, 415165, 415171, 277 26, 277212F, F04D 2908

Patent

active

046503978

ABSTRACT:
A seal member particularly adapted to seal leakage gaps between turbine vanes in a variable geometry turbine vane assembly comprises a sheet metal strip having a first flange and a second flange angularly disposed with respect to the first flange. The first flange is an anchoring flange comprising separated segments adapted to be secured to a turbine wall on one side of the leakage gap. The other flange is a sealing flange adapted to engage the member on the opposite side of the gap. The spring tension of the metal strip urging the sealing flange against the member can be enlarged or replaced by various means for urging the sealing flange against other member such as a differential pressure across the seal member and the formation of the sealing strip with heat sensitive metals.

REFERENCES:
patent: 726032 (1903-04-01), Curtis
patent: 3014694 (1961-12-01), Pauel et al.
patent: 3199294 (1965-08-01), Hagen
patent: 3464705 (1969-09-01), Ryan
patent: 3690785 (1972-09-01), Lind
patent: 4184689 (1980-01-01), Brodell et al.
patent: 4251185 (1981-02-01), Karstensen
patent: 4314792 (1982-02-01), Chaplin
patent: 4326835 (1982-04-01), Wertz
patent: 4403914 (1983-09-01), Rogo et al.

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