Impingement cooled foil bearings in a gas turbine engine
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United States of America Patent
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-
Sep 11, 2001
Grant Date -
N/A
app pub date -
Nov 18, 1999
filing date -
Nov 18, 1999
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A foil bearing assembly for use in a gas turbine engine is provided. The assembly includes an annular bearing carrier mounted to the housing of the engine. An annular foil carrier disposed within the bearing carrier and carrying a plurality of overlapping foils that engage an outer surface of a journal. The journal is mounted to the rotating assembly of the engine to define a cavity. Disposed in the cavity is a showerhead having an inlet for receiving a flow of cooling air and a plurality of orifices for providing impingement cooling of the inner surface of the journal. The use of a showerhead in a thrust foil bearing is also disclosed.
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