Method and apparatus to provide thermal isolation of process gas

Details Method and apparatus to provide thermal isolation of process gas Method and apparatus to provide thermal isolation of process gas

1984-12-20

1992-02-11

Casaregola, Louis J.

Pumps

Motor driven

Fluid motor

415177, 415178, F04B 1700

Patent

active

050871765

ABSTRACT:
Apparatus for cooling pliant film bearings of turbomachinery or the like and for protecting such bearings against heat transfer from the turbine side of the machinery. The turbomachine incorporates a hollow shaft for better cooling. Embodiments of the invention circulate cooling air through the interior of the hollow shaft and provide various structural configurations to thermally isolate the bearing shaft from the turbine wheel.

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