Rotary expansible chamber devices – Interengaging rotating members
Patent
1999-03-23
2000-11-07
Denion, Thomas
Rotary expansible chamber devices
Interengaging rotating members
4182061, 418 89, 418181, 4182011, 417420, 290 44, 290 4, 101216, 416 11, 60718, F04C 1800, F03D 900
Patent
active
061427578
ABSTRACT:
An integral oil pump for an apparatus having a plurality of bearings, the oil pump comprising a housing with an opening for a shaft, a cavity within the housing, a ring gear encircling the shaft with clearance between the shaft and an inner surface of the ring gear, a plurality of evenly spaced keyways in the inner surface or the ring gear, a plurality of protrusions extending from the shaft that fit into the keyways to rotate the ring gear when the shaft is rotated, a floating gear meshing with the ring gear, the cavity enclosing the gears with very little clearance between the cavity and the gears, an inlet portion of the cavity adjacent the area where the gears mesh, an outlet portion of the cavity adjacent the area on the other side of where the gears mesh, an inlet port in fluid communication with the inlet portion of the cavity and an oil reservoir, an outlet port in fluid communication with the outlet portion of the cavity and with the bearings to supply pressurized oil to the bearings.
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Denion Thomas
Emerson Electric Co.
Trieu Thai-Ba
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