Air and oil cooled bearing package

Details Air and oil cooled bearing package Air and oil cooled bearing package

1980-10-08

1984-05-29

Marcus, Stephen

Rotary kinetic fluid motors or pumps

With lubricating, sealing, packing or bearing means having...

415111, 415112, 415175, 415180, 308187, 384398, F01D 2516

Patent

active

044512007

ABSTRACT:
A combination air and oil cooled seal housing is provided which also utilizes trapped stagnant air as an insulator. The combination prevents coking of the oil supplied as a lubricant to the bearings and seals in the hot section of a turbine engine. Pressurized air is introduced from the compressor into the inner structure support housing by means of hollow passages. The pressurized air absorbs heat as it traverses the passages in the structure. The oil supply is connected to an annular shape cavity allowing the oil to be circulated therein and cool the seal support structure. Additional insulation is provided by cylindrically shaped trapped air shields surrounding the bearing package. Oil flowing through the structure can then properly lubricate the seals and bearings which support the turbine rotor stages within the housing assembly.

REFERENCES:
patent: 3393024 (1965-08-01), Rhodes et al.
patent: 3976165 (1976-08-01), Pilarczyk
patent: 3999376 (1976-12-01), Jeryan et al.
patent: 4156342 (1979-05-01), Korta

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