Oil lubrication of vacuum pump with pulsating oil feed

Details Oil lubrication of vacuum pump with pulsating oil feed Oil lubrication of vacuum pump with pulsating oil feed

1982-09-21

1984-10-23

Vrablik, John J.

Rotary expansible chamber devices

Heat exchange or non-working fluid lubricating or sealing

With pump for non-working fluid

418 93, 418 94, 13762413, 251345, 251352, F04C 1800, F04C 2300, F04C 2902

Patent

active

044785623

ABSTRACT:
A method and apparatus for lubricating a vacuum pump, preferably a rotary vane vacuum pump, wherein the pump rotor is mounted on a hollow drive shaft continuously fed with a lubricating oil stream under excess pressure from an oil pump, radial openings being provided in the hollow shaft for the outward supply of lubricating oil to the elements being lubricated with the lubricating oil stream from said oil pump being fed under excess pressure as a pulsating and preferably intermittent flow stream into the interior of the hollow shaft.

REFERENCES:
patent: 2050533 (1936-08-01), Huff
patent: 2324903 (1943-07-01), Beckman
patent: 2500719 (1950-03-01), Ungar
patent: 2522824 (1950-09-01), Hicks
patent: 2737341 (1956-03-01), Bitzer
patent: 2801791 (1957-08-01), Walter
patent: 4231728 (1980-11-01), Hertell
patent: 4355963 (1982-10-01), Tanaka et al.

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