Power plants – Combustion products used as motive fluid – With lubricators
Patent
1982-04-16
1984-06-05
Casaregola, Louis J.
Power plants
Combustion products used as motive fluid
With lubricators
184 611, F02C 706
Patent
active
044520379
ABSTRACT:
Apparatus is disclosed for automatically purging oil from the jets supplying lubricant to bearings and seals in a turbine engine after shutdown. To accomplish this task, pressurized air is tapped from the air plenum just downstream of the engine compressor stage. The pressurized air is stored in a small tank using an air check valve in the incoming line so that the air tank is charged to the highest pressure achieved by the engine compressor during its operation. The outlet of the air tank is connected to the oil jets used for lubricating the engine bearings and seals. A snap action valve is inserted in the air supply line to activate and deactivate airflow out of the tank. The snap action valve is designed to be switched "off" whenever there is positive oil pressure in the lubricating supply line of the turbine engine. After engine shutdown, lubricant flow drops, reducing oil pressure to zero. This event initiates the start of a delay interval after which the snap action valve is activated to its "on" state allowing the contents of the air tank to be blown through the oil jets, effectively clearing them of oil.
REFERENCES:
patent: 2672010 (1954-03-01), Newcomb
patent: 3052444 (1962-09-01), Kintner
patent: 3344602 (1967-10-01), Davies et al.
patent: 4142608 (1979-03-01), Sarle
Pratt & Whitney, "The Aircraft Gas Turbine and Its Operation", 6-1980, p. 126.
Blake Donald
Kuintzle, Jr. Charles
Lagasse Normand
Waddington Clive
Avco Corporation
Casaregola Louis J.
Gelling Ralph D.
Stout Donald E.
LandOfFree
Air purge system for gas turbine engine does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Air purge system for gas turbine engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Air purge system for gas turbine engine will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1491545