Pump oil mister with reduced windage

Details Pump oil mister with reduced windage Pump oil mister with reduced windage

1994-10-11

1996-05-07

Freay, Charles

Pumps

Motor driven

Electric or magnetic motor

415175, F04B 3504

Patent

active

055139647

ABSTRACT:
A centrifugal environmentally safe pump including a motor driven pump shaft having a fluid pumping impeller affixed thereto. A plurality of annular shaft supporting bearing assemblies are disposed along the shaft adjacent a lubrication chamber, the lubrication chamber housing lubrication fluid (e.g. oil) maintained at a level below rotating portions of the bearing assemblies so as to maintain a low operating temperature within the chamber and adjacent the bearings. A lubricating fluid dispenser having a thin-profile, disc-shaped portion is affixed to the pump shaft within the lubrication chamber for rotation along with the shaft. The width or profile of the disc-shaped portion of the dispenser is small so as to reduce windage adjacent the lubricating fluid level when the shaft and dispenser are rotated at high speeds thereby allowing the level of the lubrication fluid to be maintained substantially constant and below the bearing balls, even when the pump is operated at high speeds. A plurality of wire-like fluid contacting members are loosely connected along the outer periphery of the disc-shaped portion, the wire members for dipping into the lubricating fluid when the pump shaft is rotating thereby dispersing or misting the fluid throughout the chamber.

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