Turbine engine lubrication system

Details Turbine engine lubrication system Turbine engine lubrication system

1976-07-28

1978-03-28

Croyle, Carlton R.

Power plants

Combustion products used as motive fluid

With lubricators

184 611, F02C 706

Patent

active

040807835

ABSTRACT:
A bearing lubrication system for a turbine engine is provided which utilizes a fuel-air mist to both lubricate and cool the bearing assembly. An annular fuel-air distributor is positioned adjacent the bearing assembly and includes an inlet and several outlet ports directed towards the bearing assembly. A fuel port and a source of pressurized air are coupled to the inlet of the fuel-air distributor so that the pressurized air mixes the fuel into the air and projects a fuel-air mist through the distributor and onto the bearing assembly. A fuel metering device maintains the fuel-air ratio outside of its flammability range to prevent fires within the bearing cavity. Exhaust passageways from the bearing cavity are disposed adjacent the bearing outer race to provide additional cooling of the bearing assembly during the exhaustion of the fuel-air mist from the bearing cavity.

REFERENCES:
patent: 2740267 (1956-04-01), Bayard
patent: 2784551 (1957-03-01), Karlby et al.
patent: 2986433 (1961-05-01), Herrmann
patent: 3078667 (1963-02-01), Deinhandt
patent: 3377802 (1968-04-01), Wilkinson et al.

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