Lubrication – Systems – Gas turbine
Patent
1978-12-04
1981-05-05
Brown, David H.
Lubrication
Systems
Gas turbine
60 3908, F02C 706, F16D 346
Patent
active
042653347
ABSTRACT:
An apparatus is provided to supply oil to a differential bearing mounted between relatively rotating concentric shafts, for example, inside a gas turbine engine. In one form, the apparatus includes a fixed nozzle that injects oil into an annular collector dam mounted on the outer floating shaft. The dam construction utilizes centrifugal force to cause the oil to flow forward through passages into an interior area of the outer shaft. Inside such shaft, the oil is directed by dispensers into an oil transfer tube that traverses the distance inside the shaft from the dispensers to the bearing. The inside wall of the tube is flared to a larger diameter at the forward end, and the centrifugal force resulting from shaft rotation forces the oil forward into the bearing. At the forward end, the transfer tube contacts the outer race of the bearing thereby lubricating the bearing throughout a 360 degree surface area. After lubricating and traversing the rotating contact surfaces of the bearing, the oil is directed to a scavenge cavity for recycling through the engine lubrication system.
REFERENCES:
patent: 2951337 (1960-09-01), Atkinson et al.
patent: 3085838 (1963-04-01), Patterson
patent: 3248880 (1966-05-01), Hull et al.
patent: 3528241 (1970-09-01), Venable et al.
patent: 3903690 (1975-09-01), Jones
patent: 3909085 (1975-09-01), Wilkinson et al.
patent: 4013141 (1977-03-01), James
patent: 4144950 (1979-03-01), Moyer
Brown David H.
General Electric Company
Lawrence Derek P.
Walk Donald W.
LandOfFree
Apparatus for lubrication of a differential bearing mounted betw does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for lubrication of a differential bearing mounted betw, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for lubrication of a differential bearing mounted betw will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-292641