Lubrication – Lubricators – Force feed
Patent
1986-08-05
1988-01-05
Smith, Leonard E.
Lubrication
Lubricators
Force feed
184 64, 184 611, 184 622, 184 626, 184108, 60 3908, 60 39091, 384473, F01M 118, F01M 1110, F01M 910, F16C 3500
Patent
active
047170000
ABSTRACT:
An integrated emergency lubrication system is provided to lubricate the bearings of a gas turbine engine in the event that the normal lubrication system for the engine fails for any reason. The emergency system includes an accumulator for storing oil, derived from the normal lubrication system, that is released in a controlled manner to lubricate the engine's bearings for several minutes after the normal lubrication system fails. During that time, the operator of the engine has an opportunity to cope with the situation. Energy for operating the emergency lubrication system is derived from compressed air bled form the compressor section of the engine, the compressed air also being combined with oil from the accumulator to form an air/oil mist that is sprayed over the bearings to be lubricated. A plurality of valves provided to control the flow of the oil and the air and to regulate the pressure of the air, all valves and associated elements being integrated in an assembly that is relatively inexpensive to manufacture, highly reliable, and easily maintained. The configuration also minimizes vulnerability to extraneous forces and has the further benefit of not being attitude sensitive, rendering it particularly useful in aircraft employing gas turbine engines.
REFERENCES:
patent: 2886133 (1959-05-01), Mauck
patent: 2986433 (1961-05-01), Herrmann
patent: 3779345 (1973-12-01), Barnes
patent: 4284174 (1981-08-01), Salvana
patent: 4309870 (1982-01-01), Guest
patent: 4511016 (1985-04-01), Doell
patent: 4574584 (1986-03-01), Hovan
Lagasse Normand L.
Milo George T.
Waddington Clive
Avco Corporation
Obee Jane E.
Smith Leonard E.
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