Gas turbine engine bearing with fuel lubrication and cooling
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United States of America Patent
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Nov 23, 2021
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N/A
app pub date -
Feb 28, 2019
filing date -
Feb 28, 2019
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Abstract
A gas turbine engine with a bearing that is supplied with fuel and compressed air for both cooling and lubrication of the bearing. The bearing housing contains a serpentine flow cooling circuit with each leg formed from a plurality of parallel flow channels, and where fuel is supplied to the cooling circuit and then discharged into a combustor. Some of the fuel is also bled off and passed into the bearing compartment along with compressed air bled off from the compressor to both cool and lubricate the bearing.
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