Shield for labyrinth seal

Details Shield for labyrinth seal Shield for labyrinth seal

1983-07-21

1984-08-07

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 53, 277203, 415170R, 415175, F16J 1544, F01D 2518

Patent

active

044639562

ABSTRACT:
A shield for disposition between a lubricated bearing and a labyrinth seal in a gas turbine engine having a rotating member rotatable about a vertical axis, the shield preventing lubricant contamination of the seal. The shield includes an inner helical baffle on the rotating member between the bearing and the seal and an outer helical baffle on a stationary support between the inner baffle and the seal. The inner and outer baffles radially overlap to foreclose lubricant drip onto the seal and have corresponding helical leads so that the inner baffle can be threaded through the outer baffle when the rotating member is installed on the support.

REFERENCES:
patent: 3131007 (1964-04-01), Steel et al.
patent: 3162451 (1964-12-01), Brose
patent: 3173696 (1965-03-01), Reinhardt et al.
patent: 3264043 (1966-08-01), Keen
patent: 3360313 (1967-12-01), Pratt et al.
patent: 3833273 (1974-09-01), Rickley et al.
patent: 3903690 (1975-09-01), Jones
patent: 3989410 (1976-11-01), Ferrari
patent: 4103899 (1978-08-01), Turner
patent: 4245951 (1981-01-01), Minnich

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