Power plants – Combustion products used as motive fluid – With lubricators
Patent
1988-07-21
1989-08-22
Stout, Donald E.
Power plants
Combustion products used as motive fluid
With lubricators
184 611, F02C 706
Patent
active
048584266
ABSTRACT:
A secondary oil system for a flight propulsion gas turbine engine having vertical and horizontal flight modes includes an annular reservoir tank in a bearing sump of the engine around a rotor shaft of the engine, a pipe connected to the primary oil system of the engine extending through the reservoir tank and conducting a primary oil flow to a bearing in the sump, an inlet orifice at the top of the reservoir tank in each of the horizontal and vertical flight modes between the pipe and the reservoir tank for conducting a part of the primary oil flow to the reservoir tank, a discharge orifice at the bottom of the reservoir tank in each of the vertical and horizontal flight modes having a flow are limiting a gravity induced secondary oil flow from the reservoir tank to a secondary oil flow rate substantially less than the primary oil flow rate, and a passage conducting the gravity induced secondary oil flow to the bearing in the sump. The secondary oil flow persists after primary oil flow stops until the reservoir tank completely drains.
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patent: 3779345 (1973-12-01), Barnes et al.
patent: 4153141 (1979-05-01), Methlie
patent: 4284174 (1981-08-01), Salvana et al.
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patent: 4390082 (1983-06-01), Swearingen
patent: 4511016 (1985-04-01), Doell
patent: 4564084 (1986-01-01), Heckel
patent: 4717000 (1988-01-01), Waddington et al.
patent: 4741155 (1988-01-01), McCarty
General Motors Corporation
Schwartz Saul
Stout Donald E.
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