Sealing arrangement for hot bearing housings

Details Sealing arrangement for hot bearing housings Sealing arrangement for hot bearing housings

1981-01-12

1982-07-13

Footland, Lenard A.

Cutlery

308 76, F16C 3374

Patent

active

043391605

ABSTRACT:
An arrangement for minimizing blockage of drain back holes from bearing housings seal cavity areas is provided. Leakage drain tubes, made of high thermal conductivity material, are positioned in the path of lube oil drain flow and serve to carry leakage oil from seal air cavities back to the lube oil drain flow path. The leakage drain tubes are cooled by the lubricating oil in the drain flow path, extending from the sump to the oil drain pipe and include flow restrictor portions at their ends to minimize hot gas leakage around the labyrinth seal.

REFERENCES:
patent: 2749087 (1956-06-01), Blackman et al.
patent: 2791090 (1957-05-01), Hooker
patent: 3417562 (1968-12-01), Morris
patent: 3722624 (1973-03-01), Buckland
patent: 3734580 (1973-05-01), Piscitelli
patent: 3740170 (1973-06-01), Miller
patent: 3779345 (1973-12-01), Barnes
patent: 4009972 (1977-03-01), Sarle
patent: 4046223 (1977-09-01), McHugh
patent: 4111500 (1978-09-01), Ando
patent: 4156342 (1979-05-01), Korta et al.

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