Lubrication – Systems – With safety or indicating means
Patent
1974-08-12
1976-11-23
Pinkham, Richard C.
Lubrication
Systems
With safety or indicating means
308 9, 308122, 415110, F16C 1716
Patent
active
039931641
ABSTRACT:
A bearing arrangement and lubricant supply system for rotating machines, illustrated as embodied in a vacuum pump of the liquid vortex type comprises a stationary hollow shaft on which is mounted the rotor of the pump. The rotor includes a hollow shaft concentrically mounted about the stationary shaft on bearings near the ends thereof. Oil under pressure is supplied to the interior of the stationary shaft and from there to the annular space between the shafts. The stationary shaft is provided with inlet and discharge portions and the oil from the annular space is discharged through the discharge portion. The high pressure is maintained within the bearing spacer and throughout the spacer with the shafts. The rotor in effect floats on the lubricant and the volume of oil under pressure acts somewhat as a shock absorber and minimizes shock or unbalance occurring during operation of the pump.
REFERENCES:
patent: 2819798 (1958-01-01), Carter
patent: 2824521 (1958-02-01), Birkigt
patent: 3176403 (1965-04-01), Meyer
patent: 3193054 (1965-07-01), Flaherty
patent: 3687233 (1972-08-01), Greenwald
patent: 3806208 (1974-04-01), Bruck
patent: 3812654 (1974-05-01), Brown
Edwards Wm. Griffith
Pinkham Richard C.
Siskind Marvin
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